Analytical methods€¦ · Analytical methods The zircon O isotope determination was performed with...

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Analytical methods The zircon O isotope determination was performed with an IMS 1280 ion probe (CAMECA) at the SIMS Laboratory of the Institute of Geology and Geophysics, Chinese Academy of Sciences in Beijing. The Gaussian focused Cs + primary ion beam was accelerated at 10 kV with an intensity of ~1.6 nA. The spot size was approximately 10 μm in diameter. A normal incidence electron flood gun was used to compensate for sample charging. The magnetic field was stabilized using a nuclear magnetic resonance controller. Negative secondary ions were extracted with a 10 kV potential. The field aperture was 6000 × 6000 μm 2 . A 120-μm entrance slit, 40-eV energy slit, and 500-μm exit slit provided a mass resolution of ~2500 at a 1% peak height. Under these conditions, the count rate of 16 O was typically ~1.6 × 10 9 cps. 16 O and 18 O ions were detected simultaneously with two Faraday cups with 10 10 - and 10 11 -resistors, respectively. One analysis consisted of pre-sputtering (~20 s), automatic beam centering (~60 s), and integration of O isotopes (16 cycles × 4 s), leading to a complete analysis within approximately 3 min. The measured 18 O/ 16 O ratios were normalized to Vienna Standard Mean Oceanic Water ( 18 O/ 16 O = 0.0020052; Baertschi, 1976), and were presented in δ 18 O notation. The in-run precision was typically better than 0.2‰ (2SE). The instrumental mass fractionation was corrected using 91500 zircon (δ 18 O = 10.07 ± 0.03‰, Valley, 2003). The spot-to-spot reproducibility of 91500 zircon for a single analytical session ranged from 0.3 to 0.1‰ (1SD). FC1 and Penglai zircons were measured as secondary standards, and yielded average IMF-corrected δ 18 O values of 5.60 ± 0.10‰ (n = 19, 2SE) and 5.24 ± 0.06‰ (n = 58, 2SE), respectively. These values were consistent with the recommended values (FC1, 5.4 ± 0.3‰; Ickert et al., 2008; Penglai, 5.31 ± 0.10‰; Li et al., 2010) within the uncertainty range. Zircon U–Pb dating was conducted using the sensitive high-resolution ion microprobe (SHRIMP) IIe/MC (Australian Scientific Instruments) at the Korea Basic Science Institute (KBSI). Each selected spot was rastered with the primary beam for about 180 s before analysis,

Transcript of Analytical methods€¦ · Analytical methods The zircon O isotope determination was performed with...

Page 1: Analytical methods€¦ · Analytical methods The zircon O isotope determination was performed with an IMS 1280 ion probe (CAMECA) at the SIMS Laboratory of the Institute of Geology

Analytical methods

The zircon O isotope determination was performed with an IMS 1280 ion probe

(CAMECA) at the SIMS Laboratory of the Institute of Geology and Geophysics, Chinese

Academy of Sciences in Beijing. The Gaussian focused Cs+ primary ion beam was accelerated

at 10 kV with an intensity of ~1.6 nA. The spot size was approximately 10 μm in diameter. A

normal incidence electron flood gun was used to compensate for sample charging. The

magnetic field was stabilized using a nuclear magnetic resonance controller. Negative

secondary ions were extracted with a −10 kV potential. The field aperture was 6000 × 6000

μm2. A 120-μm entrance slit, 40-eV energy slit, and 500-μm exit slit provided a mass resolution

of ~2500 at a 1% peak height. Under these conditions, the count rate of 16O– was typically ~1.6

× 109 cps. 16O and 18O ions were detected simultaneously with two Faraday cups with 1010-

and 1011-Ω resistors, respectively. One analysis consisted of pre-sputtering (~20 s), automatic

beam centering (~60 s), and integration of O isotopes (16 cycles × 4 s), leading to a complete

analysis within approximately 3 min. The measured 18O/16O ratios were normalized to Vienna

Standard Mean Oceanic Water (18O/16O = 0.0020052; Baertschi, 1976), and were presented in

δ18O notation. The in-run precision was typically better than 0.2‰ (2SE). The instrumental

mass fractionation was corrected using 91500 zircon (δ18O = 10.07 ± 0.03‰, Valley, 2003).

The spot-to-spot reproducibility of 91500 zircon for a single analytical session ranged from 0.3

to 0.1‰ (1SD). FC1 and Penglai zircons were measured as secondary standards, and yielded

average IMF-corrected δ18O values of 5.60 ± 0.10‰ (n = 19, 2SE) and 5.24 ± 0.06‰ (n = 58,

2SE), respectively. These values were consistent with the recommended values (FC1, 5.4 ±

0.3‰; Ickert et al., 2008; Penglai, 5.31 ± 0.10‰; Li et al., 2010) within the uncertainty range.

Zircon U–Pb dating was conducted using the sensitive high-resolution ion microprobe

(SHRIMP) IIe/MC (Australian Scientific Instruments) at the Korea Basic Science Institute

(KBSI). Each selected spot was rastered with the primary beam for about 180 s before analysis,

Page 2: Analytical methods€¦ · Analytical methods The zircon O isotope determination was performed with an IMS 1280 ion probe (CAMECA) at the SIMS Laboratory of the Institute of Geology

and was then analyzed with five scans, following the isotope peak sequence: 196Zr2O, 204Pb,

204.1background, 206Pb, 207Pb, 208Pb, 238U, 248ThO, and 254UO. Each peak of each scan was

measured sequentially five times with the following total counting times per scan: 2 s for

masses 196, 248, and 254; 5 s for masses 208 and 238; 10 s for masses 204 and 206; and 20 s

for mass 207. The primary beam, composed of O2-, was set to an intensity of about 2–5 nA,

with a 70–120-μm Kohler aperture, which generated 20 × 25-μm elliptical spots on the target.

The secondary beam exit slit was fixed at 100 μm, achieving a resolution of about 5000 at a 1%

peak height. Before each analytical session, SL13 zircon was measured as a concentration

standard (238 ppm U). Then, FC1 zircon (1099 Ma; Paces and Miller, 1993) was measured

every 3–4 unknowns as an isotope ratio standard. Common Pb was removed following the

207Pb (for spots < 1000 Ma) or 204Pb (for spots > 1000 Ma) correction method, using the model

by Stacy and Kramers (1975). 206Pb/238U was calculated from the measured 206Pb+/238U+ and

UO+/U+ following the method described by Williams (1998). Data reduction was conducted

using the program SQUID 2.50 (Ludwig, 2009). The program ISOPLOT 3.75 (Ludwig, 2008)

was used for age calculation and graphic display. The relative age probability diagrams and age

histograms of the inherited zircon cores were constructed using the 207Pb/206Pb (> 1000 Ma)

and 206Pb/238U (< 1000 Ma) dates. High-U (> 2000 ppm) zircon spots were not considered in

the age calculation.

Zircon Lu-Yb-Hf isotopes were measured using a Plasma II multi collector-inductively

coupled plasma mass spectrometer (MC-ICP-MS) (Nu Instruments) equipped with an

NWR193-nm ArF Excimer laser ablation system (ESI) at the KBSI. Laser ablation was targeted

on the analyzed points for the determination of U–Th–Pb–O isotopes or new points within the

same cathodoluminescence domains. This MC-ICP-MS system contains multiple fixed

Faraday detectors and ion-counting electron multipliers. Ten Faraday collectors were set to

simultaneously detect the required isotopes: 172Yb, 173Yb, 174(Hf+Yb), 175Lu, 176(Hf+Lu+Yb),

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177Hf, 178Hf, 179Hf, 180Hf, and 182W. Data were routinely acquired by ablating 50-μm-diameter

laser spots, but 35-μm-diameter laser spots were used occasionally for small zircon domains.

The instrument parameters included a 10-Hz repetition rate and an energy density of 6–8 J/cm2.

He (650 mL/min) and N2 (2 mL/min) were used as carrier gases for higher Hf isotope intensities

(Iizuka and Hirata, 2005). The background intensities, dwell time, and wash out time were

about 30–60 s, 60 s, and 15 s, respectively. A time-resolved analytical procedure was used to

monitor the measured isotope ratio. The signal intensities for each detector were collected

every 0.2 s (integration time). The interferences of 176Lu and 176Yb on the 176Hf signal were

corrected using the methods of Chu et al. (2002) and Vervoort et al. (2004), respectively. The

mass bias of the measured Hf isotopic ratios was corrected to 179Hf/177Hf = 0.7325 using an

exponential correction law (Patchett et al., 1982; Russel et al., 1978). The 176Lu/177Hf and

176Yb/177Hf ratios were calculated following the method of Iizuka and Hirata (2005). The initial

εHf values were calculated using a 176Lu decay constant of 1.865 × 10-11 year−1 (Scherer et al.,

2001) and the chondritic values suggested by Blichert-Toft and Albarède (1997). Single- (TDM)

and two-stage model ages (T2DM) were calculated with reference to the suggested parameters

for depleted mantle (Griffin et al., 2000) and the average composition of continental crust

(Rudnick and Gao, 2003). Raw data were processed using Iolite 2.5 running within the software

program Igor Pro 6.3.5.5 (Paton et al., 2011). Raw data were corrected for the background,

laser-induced elemental fractionation, and mass discrimination. All ratios were calculated with

2σ errors. During the sample analysis, 91500 and FC1 zircons were repeatedly analyzed at the

beginning and end of each analytical session, and at regular intervals during each session. The

running results of the zircon standards were consistent with the recommended values in the

literature (Griffin et al., 2000; Kemp et al., 2010) within the uncertainties.

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References

Blichert-Toft, J., Albarède, F., 1997. The Lu-Hf isotope geochemistry of chondrites and the

evolution of the mantle-crust system. Earth Planet. Sci. Lett. 148, 243–256.

Chu, N.C., Taylor, R.N., Chavagnac, V., Nesbitt, R.W., Boella, M., Milton, J.A., 2002. Hf

isotope ratio analysis using multi-collector inductively coupled plasma mass

spectrometry. An evaluation of isobaric interference corrections. J. Anal. At. Spectrom.

17, 1567–1574.

Ickert, R.B., Hiess, J., Williams, I.S., Holden, P., Ireland, T.R., Chappell, B.W., Lanc, P.,

Schram, N., Foster, J.J., Clement, S.W., 2008. Determining high precision, in situ,

oxygen isotope ratios with a SHRIMP II: analyses of MPI-DING silicate-glass

reference materials and zircon from contrasting granites. Chem. Geol. 257, 114–128.

Iizuka, T., Hirata, T., 2005. Improvements of precision and accuracy in in-situ Hf isotope

microanalysis of zircon using the laser ablation-MC-ICPMS technique. Chem. Geol.

220, 121–137.

Kemp, A.I.S., Wilde, S., Hawkesworth, C.J., Coath, C.D., Nemchin, A., Pidgeon, R.T.,

Vervoort, J.D., DuFrane, S.A., 2010. Hadean crustal evolution revisited: New

constraints from Pb–Hf isotope systematics of the Jack Hills zircons. Earth Planet. Sci.

Lett. 296, 45–56.

Li, X.H., Long, W.G., Li, Q.L., Liu, Y., Zheng, Y.F., Yang, Y.H., Chamberlain, K.R., Wan, D.F.,

Guo, C.H., Wang, X.C., Tao, H., 2010. Penglai zircon megacrysts: A potential new

working reference microbeam determination of Hf-O isotopes and U-Pb age. Geostand.

Geoanal. Res. 34, 117–134.

Ludwig, K.R., 2008. User's manual for Isoplot 3.6: a geochronological toolkit for Microsoft

Excel. Berkeley Geochronology Center Special, Publication 4, p. 77.

Ludwig, K.R., 2009. User's manual for Squid 2.50. Berkeley Geochronology Center Special,

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Publication 5, p. 110.

Paces, J.B., Miller Jr., J.D., 1993. Precise U–Pb ages of Duluth Complex and related mafic

intrusions, Northeastern Minnesota: geochronological insights to physical, petrogenic,

paleomagnetic, and tectonomagmatic processes associated with the 1.1 Ga

midcontinent rift system. J. Geophys. Res. 98, 13997–14013.

Patchett, P.J., Kouvo, O., Hedge, C.E., Tatsumoto, M., 1982. Evolution of continental crust and

mantle heterogeneity: Evidence from Hf isotopes. Contrib. Mineral. Petrol. 78, 279–

297.

Paton, C., Hellstrom, J., Paul, B., Woodhead, J., Hergt, J., 2011. Iolite: freeware for the

visualisation and processing of mass spectrometric data. J. Anal. At. Spectrom. 26,

2508–2518.

Russell, W.A., Papanastassiou, D.A., Tombrello, T.A., 1978. Ca isotope fractionation on the

Earth and other solar system materials. Geochim. Cosmochim. Acta 42, 1075–1090.

Scherer, E., Münker, C., Mezger, K., 2001. Calibration of the lutetium-hafnium clock. Science

293, 683–687.

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two-stage model. Earth Planet. Sci. Lett. 26, 207–221.

Vervoort, J.D., Patchett, P.J., Söderlund, U., Baker, M., 2004. Isotopic composition of Yb and

the determination of Lu concentrations and Lu/Hf ratios by isotope dilution using MC-

ICPMS. Geochem. Geophys. Geosyst. 5, Q11002.

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Economic Geologists, pp. 1–35.

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Table A1 Petrographic and mineralogic summary of the granitoid samples.

Locality Sample number

Lithology Mineralogya Texture

Pocheon 130228-02B Fine- to medium-grained monzonite

Pl + Hbl + Bt + Qz ± Opq ± Kfs ± Ttn ± Ap ± Zrn

Poikilitic plagioclase

Pocheon 130228-09 Medium- to coarse-grained granite

Qz + Kfs + Pl + Bt ± Ap ± Zrn ± Aln ± Opq

Myrmekitic texture

Uijeongbu 130330-05 Medium- to coarse-grained granite

Qz + Kfs + Pl + Bt ± Opq ± Ms ± Zrn

Alteration of biotite to chlorite

Wonju JC061115-08 Medium-grained granite Qz +Kfs + Pl + Bt ± Ilm ± Mag ± Zrn ± Ap

Sericitic plagioclase

Yeoju JC061116-05 Medium- to coarse-grained granite

Kfs +Pl + Qz + Hbl + Bt ± Ttn ± Mag ± Zrn

Poikilitic biotite, alteration of biotite and hornblende to chlorite

Yeoju JC061116-06 Medium- to coarse-grained granite

Kfs +Pl + Qz + Hbl + Bt ± Ttn ± Mag ± Zrn

Sericitic plagioclase

Chungju 130418-05A Medium- to coarse-grained porphyritic granodiorite

Kfs +Pl + Qz + Hbl + Bt ± Ttn ± Mag ± Zrn

K-feldspar phenocryst

Chungju 14CH07 Medium- to coarse-grained granite dyke

Qz +Kfs + Pl + Bt ± Mag ± Aln ± Ttn ± Zrn

Alteration of biotite to chlorite or epidote

Daejeon 130418-01 Medium-grained two mica granite

Qz + Pl + Kfs + Bt + Ms ± Zrn ± Opq

Myrmekitic intergrowth of quartz and feldspar, poikilitic biotite, primary muscovite

Daejeon 130523-01 Medium-grained two mica granite

Qz + Pl + Kfs + Bt + Ms ± Zrn ± Opq

Myrmekitic intergrowth of quartz and feldspar, poikilitic biotite, primary muscovite

a Aln, allanite; Ap, apatite; Bt, biotite; Hbl, hornblende; Ilm, ilmenite; Kfs, K-feldspar; Mag, magnetite; Ms muscovite; Opq, opaque mineral; Pl, plagioclase; Qz, quartz; Ttn, titanite; Zrn, zircon.

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Table A2 SHRIMP U-Th-Pb results for zircon. Spot numbera

Common 206Pb (%)

U (ppm)

Th (ppm)

Th/U 206Pb/238U ±%b 207Pb/206Pb ±%b Discordancy

(%) Date (Ma)c

Pocheon monzonite (130228-02B)

1-6.1ic 0.01 999 318 0.32 0.2384 1.5 0.1379 0.4 +41 2194.6 ± 5.5

1-8.1ic 0.07 127 129 1.02 0.3352 3.4 0.1159 1.7 -3 1812.4 ± 20.7

1-9.1ic 0.08 146 122 0.84 0.3232 1.0 0.1296 1.1 +17 2119.2 ± 14.1

1-9.2ir <0.01 732 100 0.14 0.3149 1.2 0.1154 1.6 +7 1889.1 ± 28.6

1-15.1ic 260 44 0.17 0.2920 2.9 0.1246 2.9 +18 1965.6 ± 54.4

1-15.2ic 0.02 334 40 0.12 0.3126 4.2 0.1113 3.4 +7 1872.7 ± 60.0

1-20.1ic 0.05 141 135 0.96 0.4012 2.1 0.1315 1.2 -4 2104.9 ± 15.1

2-1.1c 82 66 0.80 0.0270 3.1 0.0447 10.8 +441 172.8 ± 4.5

2-1.2r 720 342 0.47 0.0265 2.1 0.0547 2.7 -177 167.5 ± 3.2

2-2.1c 0.60 395 496 1.26 0.0270 1.0 0.0574 10.7 +47 170.3 ± 1.3

2-2.2r 68 49 0.72 0.0274 1.5 0.0438 9.6 175.6 ± 2.2

2-3.1c 0.37 335 299 0.89 0.0271 2.3 0.0515 8.8 +24 171.7 ± 3.2

2-3.2r 941 1213 1.29 0.0258 1.8 0.0427 36.3 -398 165.6 ± 1.7

2-4.1c 129 77 0.60 0.0261 1.2 0.0555 4.3 +457 164.6 ± 1.8

2-4.2r 0.03 681 208 0.31 0.0264 0.7 0.0503 2.2 +339 167.5 ± 1.1

2-5.1c 0.14 494 379 0.77 0.0265 2.0 0.0521 5.3 +59 168.2 ± 2.9

2-5.2r 0.11 1067 344 0.32 0.0267 1.4 0.0499 1.8 +19 169.7 ± 2.2

2-6.1ic 0.36 222 94 0.42 0.0726 5.7 0.1296 3.0 +75 1567.1 ± 71.7

2-6.2r 451 205 0.46 0.0280 2.2 0.0475 4.1 -353 178.5 ± 3.6

2-7.1ic 0.02 231 31 0.13 0.5892 1.3 0.2992 2.2 +17 3469.4 ± 33.8

2-7.2r 519 185 0.36 0.0273 0.8 0.0477 3.5 +391 173.8 ± 1.3

2-8.1c 406 565 1.39 0.0276 1.8 0.0551 14.9 +361 174.5 ± 2.2

2-8.2r 313 170 0.54 0.0275 2.5 0.0477 3.6 +314 175.0 ± 3.9

2-9.1c 0.58 320 303 0.95 0.0280 1.8 0.0536 6.2 -165 176.9 ± 2.6

2-9.2r 66 39 0.60 0.0286 3.2 0.0342 9.7 +80 185.0 ± 5.2

2-10.1c 393 402 1.02 0.0280 3.2 0.0518 17.9 -55 177.5 ± 4.5

2-10.2r 0.08 411 266 0.65 0.0273 1.9 0.0552 2.9 -28 172.3 ± 2.9

3-1.1c 0.04 673 410 0.61 0.0275 0.8 0.0500 1.7 -191 174.5 ± 1.2

3-2.1c 0.41 135 121 0.89 0.0267 1.0 0.0475 6.5 +141 170.0 ± 1.4

3-5.1c 1443 722 0.50 0.0275 0.7 0.0531 1.9 +133 173.9 ± 1.1

3-6.1ic 0.12 1082 17 0.02 0.0839 4.9 0.0826 5.2 +61 1244.9 ± 102.3

3-7.1c 188 141 0.75 0.0276 2.6 0.0601 13.9 173.2 ± 3.7

3-9.1c 127 145 1.15 0.0284 2.0 0.0825 5.5 173.2 ± 2.9

3-10.1c 701 957 1.37 0.0282 1.9 0.0881 31.5 +117 170.5 ± 1.2

3-11.1c 0.52 137 59 0.43 0.0263 1.5 0.0434 8.6 168.6 ± 1.4

3-12.1c 246 61 0.25 0.0263 0.8 0.0374 2.4 +117 170.1 ± 1.3

3-13.1c 69 45 0.64 0.0279 2.3 0.0536 6.7 176.2 ± 3.5

3-14.1ic 1247 38 0.03 0.0358 1.0 0.0343 4.8 +127 231.6 ± 2.3

3-15.1c 593 352 0.59 0.0276 1.6 0.0569 5.0 173.9 ± 2.5

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Spot numbera

Common 206Pb (%)

U (ppm)

Th (ppm)

Th/U 206Pb/238U ±%b 207Pb/206Pb ±%b Discordancy

(%) Date (Ma)c

Pocheon granite (130228-09)

1-5.1ic 0.01 540 250 0.46 0.3177 0.7 0.1120 0.7 +5 1870.1 ± 7.6

2-1.1c 640 355 0.56 0.0274 1.5 0.0472 2.3 -56 175.1 ± 2.4

2-1.2r 0.08 3115 1102 0.35 0.0285 1.2 0.0497 1.0 +21 181.4 ± 2.0

2-2.1c 0.14 976 592 0.61 0.0277 0.8 0.0480 3.4 +32 176.3 ± 1.1

2-2.2r 449 188 0.42 0.0280 1.4 0.0475 2.2 -57 178.2 ± 2.3

2-3.1ic 0.03 807 39 0.05 0.2678 0.9 0.1137 2.3 +20 1859.7 ± 41.8

2-3.2r 0.03 318 204 0.64 0.0277 1.5 0.0494 3.0 +30 176.1 ± 2.3

2-4.1c 0.71 1207 979 0.81 0.0282 1.4 0.0529 2.6 -20 178.5 ± 2.1

2-4.2r <0.01 1030 558 0.54 0.0284 0.7 0.0499 1.5 +17 180.6 ± 1.1

2-5.1ic 0.12 1414 123 0.09 0.1492 2.4 0.1094 0.5 +51 1707.7 ± 6.7

2-5.2r 353 275 0.78 0.0275 0.9 0.0475 3.9 +22 175.5 ± 1.2

2-6.1c 0.59 162 136 0.84 0.0279 1.0 0.0557 4.9 -12 175.7 ± 1.5

2-6.2r 0.08 3029 1818 0.60 0.0286 1.1 0.0498 1.2 +5 181.8 ± 1.8

2-7.1ic 393 32 0.08 0.2908 2.4 0.1420 5.1 +30 2229.8 ± 89.3

2-7.2r 0.34 1835 792 0.43 0.0279 1.4 0.0522 1.9 -59 176.7 ± 2.2

2-8.1c 299 190 0.64 0.0274 1.8 0.0497 3.8 +1653 174.1 ± 2.7

2-8.2r 1677 1083 0.65 0.0277 0.7 0.0496 1.4 -11 176.4 ± 1.0

2-9.1c 0.06 3153 1294 0.41 0.0283 1.3 0.0504 1.1 +9 180.0 ± 2.1

2-9.2r 5559 2429 0.44 0.0293 0.9 0.0501 0.7 -2 186.2 ± 1.6

3-1.1c 274 305 1.11 0.0280 1.4 0.0444 9.6 -89 179.0 ± 1.9

3-3.1c 0.09 413 392 0.95 0.0276 1.4 0.0475 4.9 -2119 175.8 ± 2.0

3-4.1c 0.43 549 309 0.56 0.0272 0.8 0.0529 2.4 +58 172.3 ± 1.2

3-8.1c 0.23 422 313 0.74 0.0263 1.5 0.0466 5.6 -14 168.1 ± 2.2

3-9.1c 0.27 727 695 0.96 0.0281 1.3 0.0483 11.8 +37 179.1 ± 1.6

3-10.1c 0.17 1044 346 0.33 0.0280 0.9 0.0501 2.4 +5 178.0 ± 1.4

3-11.1c 0.11 316 312 0.98 0.0275 1.7 0.0505 6.3 +34 174.6 ± 2.4

3-12.1c 1345 1419 1.05 0.0279 2.6 0.0455 8.2 -11 178.5 ± 3.8

3-13.1c 0.22 278 268 0.96 0.0277 1.4 0.0551 17.0 +16 174.7 ± 1.2

3-15.1c 0.09 1238 586 0.47 0.0279 0.7 0.0493 1.6 +14 177.5 ± 1.1

3-7.3r 1.17 3315 3086 0.93 0.0300 0.8 0.0394 2.2 -7 193.2 ± 1.3

Uijeongbu granite (130330-05)

1-14.1ic 0.04 228 82 0.36 0.2732 1.7 0.1060 1.6 +16 1832.9 ± 19.8

1-19.1ic 804 35 0.04 0.3259 0.8 0.1162 0.4 +5 1898.4 ± 7.9

2-2.1c 0.06 2443 1342 0.55 0.0272 0.6 0.0501 1.0 +9 172.7 ± 1.0

2-3.1c 117 55 0.47 0.0271 1.7 0.0528 6.6 +30 171.7 ± 2.8

2-4.1c 153 186 1.22 0.0273 2.5 0.0512 15.0 +162 173.0 ± 3.3

2-5.1ic 206 213 1.03 0.3760 2.4 0.1307 1.9 +2 2099.8 ± 22.4

2-6.1c 0.09 317 350 1.10 0.0264 1.5 0.0467 9.7 -146 168.3 ± 2.0

2-7.1ic 266 117 0.44 0.3190 0.8 0.1125 0.6 +3 1840.3 ± 10.7

2-7.2ir 0.02 240 108 0.45 0.3107 1.2 0.1114 1.0 +7 1864.0 ± 13.5

2-8.1c 0.15 144 84 0.58 0.0260 2.1 0.0512 5.3 +166 165.0 ± 2.9

2-11.1c 214 121 0.57 0.0267 0.9 0.0486 5.7 -43 169.7 ± 1.4

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Spot numbera

Common 206Pb (%)

U (ppm)

Th (ppm)

Th/U 206Pb/238U ±%b 207Pb/206Pb ±%b Discordancy

(%) Date (Ma)c

2-12.1c 0.15 71 66 0.93 0.0269 2.1 0.0440 13.5 +129 172.5 ± 2.8

2-10.1c 0.68 150 84 0.56 0.0258 1.7 0.0609 4.9 +44 162.0 ± 2.4

2-13.1c 435 272 0.62 0.0264 0.9 0.0456 3.6 -17 168.7 ± 1.2

2-14.1c 0.19 280 242 0.86 0.0268 1.8 0.0510 5.1 +4 170.4 ± 2.6

2-15.1ic 682 743 1.09 0.4354 1.4 0.1482 1.0 -1 2309.0 ± 4.7

2-16.1ic 0.02 397 218 0.55 0.3493 7.0 0.1358 4.8 +13 2177.1 ± 73.9

2-17.1c 366 292 0.80 0.0261 1.3 0.0389 17.0 +376 168.2 ± 1.2

2-18.1c 0.18 847 489 0.58 0.0258 1.0 0.0499 2.0 +47 164.3 ± 1.5

2-19.1c 0.20 223 281 1.26 0.0259 2.8 0.0543 15.0 +186 163.8 ± 3.6

2-20.1c 0.18 289 191 0.66 0.0269 1.2 0.0574 3.9 +48 169.4 ± 1.8

2-21.1c 0.68 190 243 1.28 0.0274 1.5 0.0474 32.1 +59 174.6 ± 1.5

2-22.1ir 0.01 882 139 0.16 0.3871 0.6 0.1520 1.4 +13 2374.2 ± 22.9

2-23.1ic 0.02 1138 243 0.21 0.2989 1.0 0.1128 1.4 +10 1842.7 ± 24.8

2-24.1ic 0.02 423 86 0.20 0.3159 0.9 0.1141 0.9 +7 1879.5 ± 16.6

Wonju granite (JC061115-08)

1-1.1ic 0.03 316 96 0.30 0.3912 2.7 0.1361 2.6 +5 2227.3 ± 40.5

1-2.1r 728 138 0.19 0.0270 1.1 0.0492 1.7 +44 171.8 ± 1.8

1-3.1c 0.08 533 38 0.07 0.0274 1.3 0.0500 1.9 -46 174.2 ± 2.3

1-3.2r 0.06 146 36 0.25 0.0268 1.5 0.0500 3.6 +63 170.1 ± 2.4

1-4.1r 622 110 0.18 0.0267 1.0 0.0488 1.8 -65 169.9 ± 1.6

1-6.1r 1530 417 0.27 0.0274 0.7 0.0491 1.1 -4 174.2 ± 1.2

1-7.1c 0.54 97 69 0.71 0.0268 2.7 0.0546 5.7 +151 169.4 ± 4.0

1-8.1ir 0.06 350 88 0.25 0.2981 0.8 0.1151 0.5 +11 1863.1 ± 9.8

1-9.1ic 698 167 0.24 0.2759 0.7 0.1124 0.4 +17 1849.6 ± 6.5

1-9.2r 0.10 829 192 0.23 0.0267 1.3 0.0499 1.9 -74 169.5 ± 2.2

1-10.1r 125 111 0.89 0.0265 1.5 0.0465 14.4 +120 169.0 ± 1.8

1-11.1r 0.40 195 33 0.17 0.0272 1.5 0.0533 3.1 -584 171.9 ± 2.4

1-12.1ic 0.11 195 45 0.23 0.2449 1.4 0.1104 0.8 +24 1795.2 ± 17.2

1-13.1ic 689 688 1.00 0.4384 0.7 0.1639 0.4 +7 2480.0 ± 4.3

2-1.1ic 0.11 346 176 0.51 0.0369 1.7 0.0534 2.5 -25 232.9 ± 3.6

2-1.2ir 145 90 0.62 0.0388 2.5 0.0474 4.5 +286 246.6 ± 5.4

2-2.1ic 1016 89 0.09 0.1901 8.3 0.1023 10.1 +36 1665.4 ± 186.2

2-2.2r 178 81 0.45 0.0271 1.1 0.0441 4.2 +54 173.4 ± 1.6

2-3.1ic 0.01 602 30 0.05 0.2918 3.4 0.1156 5.5 +13 1866.9 ± 100.5

2-3.2r 597 160 0.27 0.0272 1.5 0.0513 2.1 +14 172.4 ± 2.4

2-4.1ic 0.10 101 49 0.49 0.2974 2.4 0.1108 3.8 +10 1834.2 ± 67.2

2-4.3r 835 290 0.35 0.0268 1.2 0.0501 2.0 -70 170.3 ± 1.9

2-5.1ic <0.01 282 201 0.71 0.3927 4.7 0.1371 2.1 +3 2190.7 ± 8.7

2-5.2ir 0.01 407 62 0.15 0.3659 17.8 0.1034 11.8 -29 1596.1 ± 229.6

2-6.1ic 321 52 0.16 0.2958 1.3 0.1129 0.6 +11 1852.9 ± 10.2

2-6.2r 0.07 1527 257 0.17 0.0266 1.7 0.0499 1.5 +35 169.4 ± 2.8

2-7.1ic 0.08 489 28 0.06 0.1190 10.9 0.1156 9.9 +65 1887.6 ± 179.0

2-7.2r 77 50 0.65 0.0262 3.6 0.0431 8.3 +72 168.0 ± 5.3

Page 10: Analytical methods€¦ · Analytical methods The zircon O isotope determination was performed with an IMS 1280 ion probe (CAMECA) at the SIMS Laboratory of the Institute of Geology

Spot numbera

Common 206Pb (%)

U (ppm)

Th (ppm)

Th/U 206Pb/238U ±%b 207Pb/206Pb ±%b Discordancy

(%) Date (Ma)c

2-8.1ic 0.08 425 162 0.38 0.2459 1.7 0.1287 3.6 +37 2126.3 ± 57.7

2-8.2r 0.06 968 238 0.25 0.0265 1.8 0.0520 1.9 -306 168.2 ± 2.9

2-9.1c 0.02 709 312 0.44 0.0273 1.1 0.0492 2.0 +32 173.9 ± 1.7

2-9.2r 0.11 654 137 0.21 0.0250 0.7 0.0504 2.2 +49 159.0 ± 1.1

2-10.1c 802 47 0.06 0.0273 1.9 0.0489 2.1 +15 173.4 ± 3.3

2-10.2r 0.01 204 67 0.33 0.0268 1.9 0.0497 3.6 +61 170.4 ± 3.0

2-11.1c 0.01 1322 2327 1.76 0.0266 2.0 0.0471 19.5 -43 169.8 ± 2.3

Yeoju granite (JC061116-05)

1-1.1c 97 124 1.28 0.0267 1.6 0.0413 27.8 +63 171.5 ± 1.9

1-1.2r 0.46 78 69 0.89 0.0268 2.8 0.0455 11.3 +74 171.2 ± 4.0

1-2.1ic 0.05 277 77 0.28 0.2863 2.5 0.1131 2.7 +14 1844.7 ± 48.9

1-2.2r 100 75 0.74 0.0272 1.3 0.0377 8.4 +118 175.3 ± 1.9

1-3.1ir 141 48 0.34 0.5422 1.0 0.1730 2.5 -9 2595.9 ± 41.4

1-3.2r 131 104 0.79 0.0276 2.0 0.0500 6.0 +75 175.3 ± 2.9

1-4.1c 0.42 295 178 0.61 0.0266 0.9 0.0502 2.9 +41 169.2 ± 1.3

1-4.2r 0.16 138 110 0.80 0.0271 1.2 0.0484 6.3 +65 172.3 ± 1.7

1-5.1c 0.18 132 164 1.24 0.0272 2.6 0.0496 17.8 +62 173.1 ± 3.5

1-6.1ic 0.01 363 211 0.58 0.3313 2.0 0.1283 1.2 +13 2085.9 ± 17.4

1-6.2r 0.35 300 166 0.55 0.0277 0.9 0.0542 2.5 +62 174.9 ± 1.3

1-7.1c 182 201 1.11 0.0281 1.2 0.0552 9.6 +45 177.6 ± 1.6

Yeoju granite (JC061116-06)

1-1.1c 0.38 159 99 0.62 0.0272 2.0 0.0485 4.8 +194 173.0 ± 3.0

1-1.2r 0.10 545 253 0.46 0.0272 0.7 0.0516 1.9 +30 172.5 ± 1.2

1-2.1ic 0.02 329 127 0.39 0.2725 0.8 0.1105 0.8 +18 1859.1 ± 11.0

1-3.1c 531 416 0.78 0.0269 1.4 0.0495 3.2 +45 170.9 ± 2.0

1-4.1c 0.24 357 245 0.69 0.0269 1.9 0.0480 4.1 +15 171.7 ± 2.8

1-7.1c 426 377 0.88 0.0278 0.9 0.0521 3.9 +31 176.4 ± 1.2

1-7.2r 797 383 0.48 0.0274 1.4 0.0513 1.8 -4 173.7 ± 2.2

1-8.1c 0.03 367 277 0.75 0.0269 0.9 0.0505 3.4 -92 170.8 ± 1.3

1-8.2r <0.01 380 174 0.46 0.0268 1.8 0.0489 2.6 -47 170.3 ± 2.9

1-9.1r 885 310 0.35 0.0272 1.1 0.0493 1.6 +15 173.0 ± 1.9

1-10.1c 0.02 289 240 0.83 0.0266 1.9 0.0504 4.6 +48 169.1 ± 2.8

1-11.1ic 38 25 0.67 0.4567 4.2 0.1612 5.4 +4 2522.2 ± 84.9

2-1.1c 0.13 370 241 0.65 0.0273 1.0 0.0498 3.8 +9 173.4 ± 1.5

2-1.2r 0.25 306 125 0.41 0.0266 1.7 0.0518 2.4 +17 168.9 ± 2.6

2-2.1c 0.07 221 246 1.11 0.0268 1.9 0.0429 10.9 +6 171.6 ± 2.5

2-2.2r 0.04 937 373 0.40 0.0275 0.9 0.0495 1.3 -79 174.6 ± 1.4

2-4.1ic 0.04 1737 908 0.52 0.4032 4.3 0.1503 4.4 +10 2384.9 ± 71.6

2-4.2ir 493 36 0.07 0.2862 8.9 0.1150 8.1 +15 1871.5 ± 146.3

2-4.3r 1648 821 0.50 0.0288 1.6 0.0473 1.4 -18 183.7 ± 2.6

2-5.1ic 573 102 0.18 0.2400 1.0 0.1166 1.1 +30 1910.0 ± 25.7

2-5.2r 1426 706 0.50 0.0216 1.8 0.0513 5.3 +70 137.3 ± 2.3

2-6.1ir 0.02 279 133 0.48 0.3470 3.1 0.1544 2.8 +22 2375.3 ± 47.3

Page 11: Analytical methods€¦ · Analytical methods The zircon O isotope determination was performed with an IMS 1280 ion probe (CAMECA) at the SIMS Laboratory of the Institute of Geology

Spot numbera

Common 206Pb (%)

U (ppm)

Th (ppm)

Th/U 206Pb/238U ±%b 207Pb/206Pb ±%b Discordancy

(%) Date (Ma)c

2-6.2ir 0.01 390 97 0.25 0.2464 2.7 0.1326 1.8 +38 2166.4 ± 29.5

2-6.3ic 242 114 0.47 0.3066 5.8 0.1588 5.3 +33 2407.6 ± 90.1

1-6.4r 0.18 890 357 0.40 0.0271 0.9 0.0513 1.5 +21 172.2 ± 1.5

2-7.1c 0.10 168 95 0.56 0.0264 2.7 0.0467 9.7 +505 168.8 ± 3.8

2-7.2r 554 242 0.44 0.0273 1.4 0.0492 2.0 +838 173.7 ± 2.2

2-8.1ic <0.01 1501 1787 1.19 0.3936 1.1 0.1407 2.2 +5 2230.9 ± 34.7

2-9.1c 730 291 0.40 0.0263 0.9 0.0485 1.7 -55 167.4 ± 1.4

2-10.1c 419 261 0.62 0.0267 2.6 0.0504 6.1 +384 169.4 ± 3.8

2-11.1ic 121 82 0.68 0.3107 1.7 0.1146 1.1 +8 1877.2 ± 16.0

2-12.1r 260 129 0.50 0.0268 1.0 0.0474 2.8 +30 170.8 ± 1.5

2-12.2c 0.10 100 121 1.21 0.0285 1.6 0.0552 16.2 +74 179.8 ± 2.2

2-14.1ic 87 63 0.73 0.3363 1.5 0.1152 3.9 -1 1848.5 ± 31.7

Chungju porphyritic granodiorite (130418-05A)

2-7.2ir 828 14 0.02 0.1178 3.2 0.1034 2.1 +61 1701.4 ± 45.2

2-2.1c 396 234 0.59 0.0266 1.3 0.0491 4.0 +66 169.3 ± 1.9

2-2.2r 0.02 337 166 0.49 0.0272 1.2 0.0533 3.0 +58 172.3 ± 1.9

2-3.1c 320 233 0.73 0.0281 2.3 0.0492 5.9 -594 178.7 ± 3.5

2-3.2r 0.02 219 109 0.50 0.0278 1.3 0.0472 4.7 +60 177.1 ± 2.1

Chungju granite dyke (14CH07)

2-1.1ic 0.01 344 139 0.41 0.3570 0.8 0.1565 0.5 +21 2406.5 ± 7.7

2-2.1c 208 162 0.78 0.0301 1.1 0.0517 5.9 +183 190.7 ± 1.6

2-2.2r 0.07 1355 534 0.39 0.0297 0.9 0.0498 1.5 +23 189.0 ± 1.6

2-3.1c 677 171 0.25 0.0266 1.0 0.0522 2.2 +16 168.4 ± 1.6

2-3.2r 0.05 1328 1772 1.33 0.0313 1.0 0.0597 5.7 -25 196.5 ± 1.4

2-4.1c 0.31 147 19 0.13 0.0289 3.7 0.0496 6.4 +478 183.5 ± 6.6

2-5.1r 111 175 1.58 0.0296 1.6 0.0665 27.6 +121 184.3 ± 2.0

2-6.1ic 332 391 1.18 0.1440 1.3 0.0718 5.0 +1 863.3 ± 8.7

2-6.2ir 0.18 258 238 0.92 0.1388 1.3 0.0679 2.1 +7 837.3 ± 9.1

2-8.1ic 470 2249 4.78 0.1469 2.8 0.0795 229.6 -0 872.2 ± 5.7

2-9.1ic 0.01 244 830 3.41 0.1318 3.5 0.0293 669.1 -4 831.7 ± 6.1

2-10.1c 120 51 0.42 0.0289 1.1 0.0509 3.9 +147 183.7 ± 1.9

2-11.1ic 0.05 299 282 0.94 0.1440 0.9 0.0669 2.3 -1 868.3 ± 6.3

2-12.1c 566 226 0.40 0.0297 0.7 0.0493 1.9 +37 188.5 ± 1.2

2-12.2r 1195 640 0.54 0.0293 0.7 0.0475 1.6 -7 186.7 ± 1.1

2-13.1r 1664 759 0.46 0.0282 0.7 0.0475 1.2 -32 179.5 ± 1.1

2-14.1ic 0.83 488 302 0.62 0.0972 2.1 0.0426 3.1 +28 610.0 ± 11.0

2-14.2r 0.08 4111 2634 0.64 0.0303 0.7 0.0513 1.0 +12 192.1 ± 1.2

2-15.1r 583 287 0.49 0.0297 0.7 0.0503 1.8 -74 188.7 ± 1.3

2-16.1ic 364 301 0.83 0.1455 1.6 0.0662 2.5 -1 877.6 ± 11.5

2-17.1c 0.15 63 29 0.46 0.0294 1.3 0.0469 5.6 +145 187.5 ± 2.2

2-18.1r 1778 879 0.49 0.0297 0.6 0.0508 1.5 -23 188.4 ± 1.1

2-19.1r 0.10 649 350 0.54 0.0295 1.1 0.0492 1.9 +0 187.5 ± 1.9

2-20.1ic 0.14 145 100 0.69 0.1441 1.1 0.0692 1.9 +5 866.9 ± 7.9

Page 12: Analytical methods€¦ · Analytical methods The zircon O isotope determination was performed with an IMS 1280 ion probe (CAMECA) at the SIMS Laboratory of the Institute of Geology

Spot numbera

Common 206Pb (%)

U (ppm)

Th (ppm)

Th/U 206Pb/238U ±%b 207Pb/206Pb ±%b Discordancy

(%) Date (Ma)c

2-21.1ic 0.27 207 124 0.60 0.1210 0.9 0.0606 1.8 +8 739.4 ± 5.6

2-21.2r 0.06 930 696 0.75 0.0297 1.1 0.0490 2.2 +28 188.6 ± 1.7

2-22.1ic 441 566 1.28 0.1440 0.9 0.0689 3.4 -6 866.3 ± 5.9

Daejeon two mica granite (130418-01)

1-1.1c 0.62 106 95 0.89 0.0297 3.9 0.0581 7.4 +21 186.7 ± 6.2

1-2.1c 0.35 63 61 0.96 0.0289 1.6 0.0494 17.3 -29 183.8 ± 2.1

1-3.1c 0.30 387 149 0.39 0.0292 0.9 0.0505 1.8 -68 185.5 ± 1.5

1-7.2r 0.10 1302 85 0.07 0.0278 1.3 0.0501 1.0 +14 176.8 ± 2.3

1-8.1ic 636 83 0.13 0.3416 3.4 0.1598 4.1 +29 2558.5 ± 63.8

1-11.1ic 823 637 0.77 0.3707 1.4 0.1260 1.8 +2 2068.0 ± 25.7

1-11.2r 0.33 193 34 0.17 0.0295 0.8 0.0505 6.2 +149 187.1 ± 1.5

1-12.1c 307 21 0.07 0.0313 0.8 0.0489 1.9 -356 198.7 ± 1.7

1-15.1ic 0.20 145 146 1.01 0.0664 1.0 0.0570 4.6 +14 413.3 ± 3.2

1-16.1c 0.47 143 110 0.77 0.0292 1.8 0.0470 5.6 +48 185.9 ± 2.8

1-17.1ic 0.03 274 186 0.68 0.0659 0.8 0.0478 2.3 -11 415.0 ± 2.8

1-18.1ic 0.03 939 20 0.02 0.1924 3.9 0.1076 5.3 +39 1760.2 ± 96.9

1-20.1ic 0.06 447 57 0.13 0.3896 8.9 0.1471 5.1 +10 2332.1 ± 84.8

2-1.1c 1.25 23 16 0.72 0.0304 7.8 0.0671 13.5 +249 189.1 ± 12.8

2-25.1c 87 47 0.55 0.0293 3.1 0.0427 6.6 +158 187.7 ± 5.2

2-26.1ic 320 103 0.32 0.4232 4.0 0.1411 3.8 +2 2326.9 ± 59.3

2-27.1ic 3.26 245 98 0.40 0.0590 11.6 0.0800 15.3 +72 1249.5 ± 284.3

2-28.1ic 0.01 253 138 0.54 0.2904 1.1 0.1012 1.0 -1 1624.7 ± 16.9

2-30.1ic 331 112 0.34 0.5100 0.8 0.1522 1.9 -16 2335.0 ± 32.9

2-31.1ic 0.02 226 66 0.29 0.3251 6.0 0.1057 9.6 -10 1665.8 ± 184.2

2-34.1ic 0.01 1647 53 0.03 0.1985 2.9 0.1155 4.5 +41 1882.3 ± 81.5

2-36.1ic 434 272 0.63 0.4896 3.9 0.1727 4.1 +1 2587.2 ± 67.2

2-37.1ic 3.65 744 23 0.03 0.1007 7.2 0.0893 7.0 +59 1412.6 ± 133.1

2-38.1ic 0.03 447 23 0.05 0.2547 3.4 0.1098 5.3 +19 1766.0 ± 99.6

2-39.1ic 1770 29 0.02 0.2310 2.0 0.1075 0.3 +26 1759.1 ± 5.5

2-24.2ic 0.04 98 82 0.84 0.1253 1.2 0.0642 3.3 +9 761.2 ± 7.7

2-23.1ic <0.01 246 173 0.70 0.3946 0.9 0.1562 0.6 +12 2371.7 ± 8.8

2-22.2ic 263 35 0.13 0.2241 9.3 0.0971 9.1 +15 1511.5 ± 176.7

2-20.1ic 187 135 0.72 0.2508 11.1 0.1385 10.5 +38 2190.9 ± 149.2

2-18.1ic 0.02 962 1442 1.50 0.4494 3.1 0.1954 7.6 +13 2653.4 ± 67.2

2-16.2ir 188 101 0.54 0.2506 45.1 0.0992 26.7 -28 1124.1 ± 564.6

2-15.2ir 648 24 0.04 0.2055 5.1 0.1046 4.3 +33 1718.2 ± 78.6

2-14.1ic 128 50 0.39 0.2902 11.8 0.1201 10.5 +11 1798.1 ± 202.0

2-13.2ic 0.15 62 37 0.60 0.2884 1.4 0.0988 1.6 -1 1615.4 ± 34.7

2-12.1c 454 57 0.13 0.0315 1.2 0.0492 2.0 +14452 199.8 ± 2.3

2-11.1ic 543 108 0.20 0.2870 3.8 0.1306 2.6 +26 2111.4 ± 45.6

2-10.1ic 0.04 360 116 0.32 0.2497 1.3 0.1150 4.9 +28 1925.1 ± 85.7

2-9.1ic 0.21 702 434 0.62 0.1128 0.7 0.0603 1.0 +7 690.9 ± 4.2

2-6.2ic 454 361 0.80 0.4841 5.2 0.1774 2.8 +5 2670.4 ± 39.8

Page 13: Analytical methods€¦ · Analytical methods The zircon O isotope determination was performed with an IMS 1280 ion probe (CAMECA) at the SIMS Laboratory of the Institute of Geology

Spot numbera

Common 206Pb (%)

U (ppm)

Th (ppm)

Th/U 206Pb/238U ±%b 207Pb/206Pb ±%b Discordancy

(%) Date (Ma)c

2-5.1ic 0.01 820 99 0.12 0.3312 7.8 0.1495 3.5 +24 2344.5 ± 54.1

2-4.1ic 0.10 123 34 0.28 0.1822 1.0 0.0797 3.4 +11 1198.8 ± 74.4

2-3.1ic 0.29 259 234 0.90 0.1156 1.3 0.0656 2.3 +8 702.9 ± 7.9

2-2.1ic 0.10 86 51 0.60 0.4549 12.0 0.1229 13.6 -44 1739.1 ± 279.0

3-1.1ir 0.09 584 325 0.56 0.2658 1.3 0.1319 1.2 +31 2099.5 ± 22.3

3-1.2ic 508 290 0.57 0.3281 1.2 0.1350 0.8 +17 2137.3 ± 12.0

3-3.1ic 758 17 0.02 0.1821 5.7 0.0933 1.0 +31 1501.3 ± 21.9

Daejeon two mica granite (130523-01)

1-1.1c 68 60 0.88 0.0291 1.7 0.0494 12.5 +56 184.9 ± 2.4

1-2.1c 0.24 80 81 1.01 0.0299 1.9 0.0546 20.9 +31 188.8 ± 2.2

1-3.1ic 0.01 247 238 0.96 0.1255 1.9 0.0549 10.4 -0 770.6 ± 10.9

1-4.1c 0.03 191 112 0.59 0.0291 1.0 0.0549 3.1 -34 183.5 ± 1.6

1-5.1r 0.22 828 31 0.04 0.0295 0.6 0.0516 1.4 -43 187.1 ± 1.2

1-6.1ic 95 54 0.57 0.1217 1.2 0.0620 2.3 -1 742.2 ± 8.1

1-6.2r 0.03 1374 66 0.05 0.0294 0.6 0.0496 1.1 +21 187.0 ± 1.2

1-7.1c 143 44 0.31 0.0289 1.0 0.0506 3.5 +70 183.4 ± 1.8

1-8.1r 0.11 1648 111 0.07 0.0320 0.6 0.0514 1.0 +1 202.5 ± 1.2

1-12.1ic 0.01 364 267 0.73 0.4497 1.2 0.1633 1.2 +4 2468.2 ± 20.1

1-13.1r 0.17 129 48 0.37 0.0295 1.1 0.0523 3.8 +25 187.1 ± 2.0

1-14.1ic 0.02 619 6 0.01 0.2717 5.8 0.1156 0.4 +20 1885.9 ± 8.1

1-15.1ic 0.02 350 225 0.64 0.3794 3.0 0.1415 1.7 +14 2393.8 ± 19.0

1-16.1ic <0.01 623 373 0.60 0.4552 2.0 0.1643 2.2 +4 2491.1 ± 37.2

1-16.2r 706 377 0.53 0.0299 1.2 0.0521 2.3 +26 189.1 ± 2.1

1-17.1r 0.02 677 136 0.20 0.0292 1.3 0.0525 1.7 +23 184.6 ± 2.3

1-9.1c 70 48 0.67 0.0298 1.4 0.0563 5.4 -49 187.6 ± 2.3

2-1.1ic 153 85 0.56 0.4738 5.9 0.2038 3.9 +15 2860.4 ± 57.7

2-1.2r 0.96 22 13 0.61 0.0275 3.9 0.0409 13.5 +87 176.8 ± 5.9

2-2.1ic 66 38 0.58 0.3430 1.3 0.1152 1.3 +0 1907.7 ± 24.6

2-2.2r 0.01 1909 540 0.28 0.0305 1.0 0.0522 1.4 +5 193.5 ± 1.9

2-3.1ir 0.05 377 177 0.47 0.1222 1.5 0.0643 1.2 +1 742.9 ± 9.7

2-3.5r 1561 96 0.06 0.0307 0.9 0.0499 1.0 +8 195.0 ± 1.8

2-4.1ic 409 399 0.98 0.7503 1.6 0.3206 0.5 -1 3587.4 ± 2.8

2-4.2r 0.25 53 16 0.30 0.0261 1.5 0.0432 7.2 +83 167.5 ± 2.3

2-5.1ic 1154 10 0.01 0.2493 4.5 0.1115 6.5 +24 1828.5 ± 116.8

2-5.2ir 225 106 0.47 0.2601 21.5 0.1042 23.0 +9 1613.1 ± 425.9

2-6.1ic 504 11 0.02 0.2317 9.4 0.1039 9.0 +24 1713.1 ± 163.7

2-6.2r 0.01 319 37 0.12 0.0278 0.8 0.0470 2.4 +48 177.4 ± 1.4

2-7.1ic 108 82 0.76 0.3151 1.9 0.1532 3.5 +32 2462.0 ± 54.9

2-7.2r 606 32 0.05 0.0283 0.7 0.0501 1.6 +4 179.9 ± 1.2

2-8.1ic 204 148 0.72 0.4616 1.4 0.1524 2.7 -4 2367.0 ± 42.3

2-8.2r 999 15 0.02 0.0293 0.9 0.0493 1.2 +20 186.4 ± 1.7

2-9.1ic 0.02 508 371 0.73 0.4065 0.7 0.1540 1.7 +10 2413.7 ± 26.7

2-9.2ir 0.05 183 161 0.88 0.2337 10.4 0.1263 10.8 +35 1974.7 ± 158.9

Page 14: Analytical methods€¦ · Analytical methods The zircon O isotope determination was performed with an IMS 1280 ion probe (CAMECA) at the SIMS Laboratory of the Institute of Geology

Spot numbera

Common 206Pb (%)

U (ppm)

Th (ppm)

Th/U 206Pb/238U ±%b 207Pb/206Pb ±%b Discordancy

(%) Date (Ma)c

2-10.1ic 456 12 0.03 0.3173 3.1 0.1303 6.2 +18 2111.0 ± 107.3

2-10.2r 2039 29 0.01 0.0294 1.7 0.0493 0.9 -54 187.2 ± 3.1

2-11.1ic <0.01 1308 501 0.38 0.6850 2.0 0.2883 0.6 +2 3422.1 ± 7.9

2-11.2r 0.18 610 22 0.04 0.0290 1.3 0.0418 1.9 +27 185.8 ± 2.3

2-12.1ic 107 90 0.83 0.3921 3.0 0.1381 5.3 +3 2187.6 ± 85.9

2-12.2r 0.02 1951 27 0.01 0.0294 1.4 0.0499 1.0 +15 187.1 ± 2.6

3-1.1ic 0.01 77 26 0.34 0.6274 1.7 0.2543 0.7 +3 3218.5 ± 10.5

3-2.1c 0.29 35 27 0.77 0.0286 1.7 0.0473 12.9 +45 182.1 ± 2.6

3-2.2r 0.24 188 129 0.69 0.0288 1.2 0.0484 4.3 +51 183.4 ± 2.0

3-5.1c 0.07 152 145 0.96 0.0284 2.5 0.0432 11.4 +157 182.1 ± 3.7

3-6.1c 0.52 115 112 0.98 0.0290 1.7 0.0542 8.4 +52 183.3 ± 2.6

3-6.2r 0.30 136 56 0.41 0.0284 1.0 0.0484 4.7 +2184 180.9 ± 1.6

3-7.1ic 144 103 0.71 0.2275 10.9 0.1596 11.3 +48 2304.6 ± 201.3

3-8.1ic <0.01 943 64 0.07 0.2220 5.9 0.1199 2.2 +40 2037.1 ± 35.5

3-9.1ic 0.04 335 45 0.14 0.2628 4.1 0.1165 12.9 +24 1913.1 ± 228.8

3-10.1c 0.83 144 129 0.89 0.0286 1.0 0.0529 6.7 -196 181.3 ± 1.5

3-12.1ic 0.12 791 385 0.49 0.1116 0.7 0.0607 1.7 +3 683.3 ± 4.0

3-13.1ic 0.01 337 614 1.82 0.4237 7.3 0.1507 46.3 -3 2185.8 ± 151.8

3-14.1ic 0.21 403 226 0.56 0.1552 0.8 0.0692 1.1 +4 931.0 ± 6.3

3-15.1c 1.05 37 19 0.50 0.0295 4.0 0.0573 9.2 +127 186.0 ± 6.8

3-16.1ic <0.01 231 117 0.51 0.3963 5.4 0.1259 6.6 -8 2017.0 ± 112.2

3-17.2c 96 104 1.09 0.0288 1.5 0.0489 17.0 +135 183.3 ± 2.0

3-20.1c 0.15 228 192 0.84 0.0286 1.0 0.0496 7.7 +43 181.6 ± 1.4

3-21.1ic 254 291 1.15 0.4761 1.1 0.1575 7.1 -1 2533.6 ± 25.9

3-24.1ic 1.50 344 7 0.02 0.0796 3.0 0.0684 1.5 +47 900.8 ± 45.7

3-24.2ir 1.28 518 27 0.05 0.1299 4.0 0.0767 1.0 +29 1084.5 ± 22.3

3-26.1ic 249 52 0.21 0.0906 0.8 0.0566 2.1 -14 560.6 ± 4.1

3-30.1ic 0.01 776 343 0.44 0.3713 0.7 0.1565 0.4 +19 2441.8 ± 5.4

3-31.1c 0.12 117 98 0.83 0.0288 1.6 0.0530 14.6 +159 182.5 ± 1.9

3-32.1c 0.26 201 32 0.16 0.0324 0.8 0.0535 3.3 +64 204.6 ± 1.6

3-32.2r 240 26 0.11 0.0307 0.7 0.0498 3.2 -110 194.7 ± 1.5

3-32.3r 0.44 36 19 0.53 0.0296 1.9 0.0583 8.2 +334 186.2 ± 2.8

3-33.2c 212 29 0.14 0.0332 1.0 0.0499 3.2 -14 210.9 ± 2.1

3-34.1c 0.20 87 82 0.94 0.0286 1.3 0.0517 10.0 +60 181.0 ± 1.9

3-35.1c 0.08 252 46 0.18 0.0324 0.8 0.0504 6.5 +1 205.3 ± 1.7

3-36.1c 158 196 1.24 0.0289 2.0 0.0520 14.5 +23 183.0 ± 2.8

3-37.1ic 0.02 310 173 0.56 0.4171 4.1 0.1534 4.0 +9 2455.3 ± 57.3

3-38.1c 176 138 0.78 0.0286 1.6 0.0520 5.1 +25 181.6 ± 2.5

3-39.1c 0.25 80 41 0.51 0.0288 2.0 0.0525 6.1 -200 182.2 ± 3.2

3-40.1ic 0.39 147 46 0.31 0.1114 1.3 0.0592 4.0 +7 683.5 ± 8.6

3-41.1ic 0.01 99 75 0.76 0.5279 1.2 0.1675 2.3 -9 2541.1 ± 35.5

3-42.1ic 86 36 0.42 0.5303 7.5 0.2479 13.0 +17 3203.0 ± 200.5

3-43.1ic 0.01 851 673 0.79 0.4655 4.2 0.1672 2.7 +3 2517.3 ± 33.5

Page 15: Analytical methods€¦ · Analytical methods The zircon O isotope determination was performed with an IMS 1280 ion probe (CAMECA) at the SIMS Laboratory of the Institute of Geology

Spot numbera

Common 206Pb (%)

U (ppm)

Th (ppm)

Th/U 206Pb/238U ±%b 207Pb/206Pb ±%b Discordancy

(%) Date (Ma)c

3-44.1ic 734 261 0.36 0.3609 0.6 0.1321 1.7 +8 2142.7 ± 29.9

3-45.1c 1.34 30 19 0.64 0.0275 2.1 0.0467 13.0 +80 175.2 ± 3.2

a c, magmatic core; ic, inherited core; ir, inherited rim; r, magmatic rim.

b Relative errors are at 1σ.

c 207Pb-corrected 206Pb/238U (<1000 Ma) and 204Pb-corrected 207Pb/206Pb dates (>1000 Ma). Errors are absolute, and at 1σ.

Page 16: Analytical methods€¦ · Analytical methods The zircon O isotope determination was performed with an IMS 1280 ion probe (CAMECA) at the SIMS Laboratory of the Institute of Geology

Table A3 O-Hf isotopic compositions of the magmatic zircon overgrowths. Spot numbera

δ18O (‰)

2σ SE 176Hf/177Hf 2σ SE (ppm)

176Lu/177Hf 2σ SE

(%) 176Yb/177Hf

2σ SE (%)

εHf(t) TDM

(Ma) T2DM

(Ma)

Pocheon monzonite (130228-02B) 1-2.1c 0.282159 14 0.0014 1.3 0.0523 1.6 -18.1 1556 2085

1-3.1c 0.282136 11 0.0017 1.6 0.0613 1.3 -18.9 1605 2132

1-4.1c 0.282129 12 0.0023 1.6 0.0835 1.3 -19.2 1639 2149

1-10.1c 0.282068 12 0.0005 1.1 0.0167 2.3 -21.2 1649 2258

1-13.1c 0.282037 11 0.0008 0.9 0.0264 1.5 -22.3 1700 2318

1-14.1c 0.282092 12 0.0008 0.7 0.0284 0.6 -20.4 1624 2211

1-31.1c 0.281997 18 0.0072 0.3 0.2882 1.1 -24.5 2112 2429

1-31.2r 0.282095 16 0.0053 1.5 0.2199 2.6 -20.8 1840 2230

1-32.1c 0.282169 13 0.0013 3.6 0.0508 2.8 -17.7 1541 2066

1-33.1c 0.282160 16 0.0079 1.0 0.2964 1.7 -18.8 1884 2119

1-33.2r 0.282193 14 0.0062 2.0 0.2260 2.8 -17.4 1731 2046

1-34.1c 0.282215 20 0.0069 0.2 0.2754 0.6 -16.7 1736 2008

1-34.2r 0.282099 16 0.0047 1.6 0.1894 1.1 -20.6 1802 2220

1-35.1c 0.282276 19 0.0068 5.0 0.2599 5.5 -14.5 1627 1888

1-35.2r 0.282086 14 0.0040 0.9 0.1472 0.4 -21.0 1786 2241

1-36.1c 0.282174 10 0.0013 1.5 0.0476 1.6 -17.5 1533 2055

1-37.1c 0.282167 16 0.0033 1.6 0.1380 1.7 -18.0 1629 2080

1-38.1c 0.282227 21 0.0086 0.4 0.4352 0.3 -16.5 1811 1993

1-38.2r 0.281968 20 0.0066 0.6 0.3156 0.4 -25.4 2122 2482

2-1.1c 6.54 0.20 0.282144 17 0.0009 2.4 0.0380 1.8 -18.6 1559 2112

2-1.2r 6.57 0.21 0.282120 20 0.0013 5.8 0.0519 4.4 -19.4 1607 2160

2-2.1c 6.78 0.20 0.282090 13 0.0006 3.9 0.0261 3.7 -20.4 1621 2215

2-2.2r 6.47 0.22 0.282094 16 0.0008 6.8 0.0340 5.9 -20.3 1625 2208

2-3.1c 6.02 0.16 0.282165 24 0.0011 3.0 0.0495 3.0 -17.8 1537 2072

2-3.2r 6.46 0.19 0.282159 23 0.0013 0.8 0.0574 0.9 -18.1 1552 2084

2-4.1 6.61 0.15 0.282190 57 0.0023 10.8 0.0727 8.8 -17.1 1552 2030

2-4.2 6.74 0.19 0.282100 46 0.0013 5.1 0.0603 3.5 -20.1 1635 2199

2-5.1c 7.00 0.22 0.282131 12 0.0010 2.2 0.0430 2.8 -19.0 1581 2137

2-5.2r 6.92 0.20 0.282135 11 0.0008 0.9 0.0354 1.2 -18.9 1568 2129

2-6.2r 6.94 0.15 0.282160 46 0.0023 13.7 0.0940 11.7 -18.1 1593 2088

2-7.2r 6.83 0.19 0.282050 27 0.0008 3.0 0.0352 2.2 -21.9 1687 2294

2-8.1c 6.98 0.24 0.282111 20 0.0018 2.6 0.0776 3.4 -19.8 1641 2180

2-8.2r 6.89 0.19 0.282118 16 0.0011 5.7 0.0463 5.4 -19.5 1602 2163

2-9.1c 7.37 0.19 0.282161 18 0.0017 1.5 0.0727 1.8 -18.0 1568 2083

2-9.2r 7.32 0.16 0.282153 11 0.0006 5.6 0.0260 5.4 -18.2 1536 2093

2-10.1c 7.00 0.20 0.282180 43 0.0013 4.8 0.0590 2.7 -17.3 1523 2044

2-10.2r 7.04 0.17 0.282137 23 0.0010 1.2 0.0420 2.4 -18.8 1571 2126

3-1.1c 0.282178 19 0.0012 4.4 0.0565 4.8 -17.4 1525 2047

3-1.2r 0.282109 26 0.0018 12.5 0.0766 11.2 -19.9 1648 2185

3-2.1c 0.282152 23 0.0013 1.3 0.0586 0.6 -18.3 1564 2098

Page 17: Analytical methods€¦ · Analytical methods The zircon O isotope determination was performed with an IMS 1280 ion probe (CAMECA) at the SIMS Laboratory of the Institute of Geology

Spot numbera

δ18O (‰)

2σ SE 176Hf/177Hf 2σ SE (ppm)

176Lu/177Hf 2σ SE

(%) 176Yb/177Hf

2σ SE (%)

εHf(t) TDM

(Ma) T2DM

(Ma)

3-2.2r 0.282140 22 0.0017 7.1 0.0660 3.8 -18.8 1597 2124

Pocheon granite (130228-09)

1-9.1c 0.282218 11 0.0021 0.8 0.0723 0.6 -16.0 1501 1973

1-9.2r 0.282210 8 0.0018 0.4 0.0516 0.7 -16.2 1502 1987

1-18.1c 0.282240 9 0.0014 0.4 0.0492 1.1 -15.1 1443 1925

1-18.2r 0.282218 6 0.0013 1.4 0.0380 2.2 -15.9 1470 1968

1-31.1r 0.282169 12 0.0013 1.9 0.0415 1.4 -17.6 1541 2063

1-32.1c 0.282214 10 0.0009 2.3 0.0326 3.2 -16.0 1463 1974

1-32.2r 0.282199 11 0.0009 0.4 0.0304 0.7 -16.5 1480 2003

1-33.1r 0.282206 11 0.0012 5.3 0.0354 6.4 -16.3 1483 1991

1-34.1c 0.282194 9 0.0015 1.4 0.0520 1.8 -16.8 1515 2016

1-34.2r 0.282188 8 0.0012 1.4 0.0394 1.8 -16.9 1510 2026

1-35.1r 0.282167 11 0.0019 0.7 0.0760 0.4 -17.7 1567 2070

1-36.1c 0.282077 11 0.0013 1.7 0.0431 2.2 -20.9 1667 2242

1-36.2r 0.282175 10 0.0015 0.4 0.0414 0.3 -17.4 1539 2052

1-37.1c 0.282194 11 0.0012 0.5 0.0460 1.0 -16.7 1501 2014

1-38.1c 0.282197 13 0.0030 3.3 0.0966 2.6 -16.8 1572 2019

1-38.2r 0.282208 11 0.0014 0.6 0.0465 1.5 -16.3 1491 1989

2-1.1c 6.58 0.24 0.282206 19 0.0013 3.2 0.0466 3.6 -16.3 1487 1991

2-1.2r 6.31 0.17 0.282254 19 0.0019 4.4 0.0806 5.5 -14.7 1444 1902

2-2.1c 6.45 0.28 0.282202 15 0.0018 4.9 0.0697 4.4 -16.5 1515 2002

2-2.2r 6.07 0.34 0.282206 14 0.0023 6.5 0.0801 4.6 -16.4 1529 1997

2-3.2r 6.42 0.22 0.282228 17 0.0009 2.5 0.0353 2.8 -15.5 1441 1946

2-4.1c 6.40 0.33 0.282216 12 0.0018 2.2 0.0667 1.8 -16.0 1492 1975

2-4.2r 6.42 0.22 0.282206 10 0.0012 1.0 0.0475 1.4 -16.3 1486 1991

2-5.2r 6.31 0.22

2-6.1c 6.47 0.23 0.282204 14 0.0020 3.3 0.0737 1.9 -16.5 1520 2000

2-6.2r 5.79 0.25

2-7.2r 6.05 0.25 0.282252 34 0.0018 3.4 0.0714 1.8 -14.7 1441 1905

2-8.1c 6.14 0.28 0.282209 10 0.0010 1.1 0.0379 1.5 -16.2 1474 1984

2-8.2r 5.97 0.30 0.282207 13 0.0015 1.2 0.0559 0.8 -16.3 1494 1991

2-9.1c 5.98 0.21 0.282218 13 0.0015 2.1 0.0650 3.1 -15.9 1479 1969

2-9.2r 6.46 0.20 0.282207 12 0.0016 1.5 0.0610 2.1 -16.3 1497 1991

2-31.1c 6.05 0.24 0.282206 22 0.0015 4.5 0.0613 5.5 -16.3 1497 1993

2-31.2r 6.33 0.31 0.282246 19 0.0017 1.9 0.0715 2.8 -14.9 1447 1916

3-7.3r 0.282193 24 0.0022 0.6 0.0953 1.3 -16.9 1542 2022

Uijeongbu granite (130330-05)

1-1.1c 0.282146 12 0.0007 0.7 0.0277 0.9 -18.5 1548 2108

1-1.2r 0.282175 11 0.0005 2.3 0.0207 2.7 -17.5 1500 2050

1-3.1c 0.282180 12 0.0010 2.5 0.0395 2.9 -17.4 1513 2044

1-3.2r 0.282188 11 0.0007 0.3 0.0276 0.1 -17.1 1490 2027

1-4.1c 0.282117 9 0.0024 0.3 0.0953 0.5 -19.7 1659 2173

1-4.2r 0.282163 9 0.0010 1.2 0.0405 1.2 -18.0 1537 2077

Page 18: Analytical methods€¦ · Analytical methods The zircon O isotope determination was performed with an IMS 1280 ion probe (CAMECA) at the SIMS Laboratory of the Institute of Geology

Spot numbera

δ18O (‰)

2σ SE 176Hf/177Hf 2σ SE (ppm)

176Lu/177Hf 2σ SE

(%) 176Yb/177Hf

2σ SE (%)

εHf(t) TDM

(Ma) T2DM

(Ma)

1-5.1c 0.282161 12 0.0008 0.9 0.0295 1.1 -18.0 1531 2079

1-5.2r 0.282198 11 0.0007 0.3 0.0242 0.3 -16.7 1474 2006

1-6.1c 0.282209 10 0.0012 0.7 0.0453 1.4 -16.3 1481 1988

1-31.1c 0.282141 12 0.0007 2.1 0.0304 1.1 -18.7 1556 2118

1-31.2r 0.282121 11 0.0011 1.0 0.0430 0.3 -19.4 1597 2158

1-32.1c 0.282164 15 0.0010 0.8 0.0337 2.6 -17.9 1534 2074

1-34.1r 0.282201 12 0.0012 2.0 0.0476 2.1 -16.6 1491 2003

1-35.1c 0.282146 9 0.0007 2.1 0.0228 2.3 -18.5 1547 2107

1-36.1r 0.282159 9 0.0008 0.7 0.0256 0.3 -18.1 1532 2083

1-37.1c 0.282201 12 0.0011 3.8 0.0385 6.3 -16.6 1487 2002

1-38.1c 0.282188 12 0.0022 0.8 0.0842 0.9 -17.2 1550 2035

1-39.1c 0.282192 10 0.0019 1.8 0.0756 3.0 -17.0 1532 2025

1-39.2r 0.282180 8 0.0019 0.4 0.0758 1.1 -17.5 1550 2048

1-40.1c 0.282169 10 0.0016 2.0 0.0618 2.9 -17.8 1551 2067

1-40.2r 0.282131 7 0.0015 0.5 0.0532 0.4 -19.2 1604 2142

1-41.1c 0.282176 8 0.0015 0.2 0.0564 0.8 -17.6 1537 2054

1-41.2r 0.282149 8 0.0010 0.8 0.0366 0.6 -18.4 1555 2103

2-1.1c 6.25 0.21 0.282274 23 0.0016 8.2 0.0703 9.0 -14.1 1403 1864

2-1.2r 6.22 0.21 0.282168 16 0.0007 4.6 0.0266 2.7 -17.8 1519 2065

2-2.1c 0.282118 13 0.0020 0.7 0.0856 0.4 -19.7 1644 2170

2-2.2r 0.282151 9 0.0009 5.2 0.0335 3.6 -18.4 1549 2099

2-3.1c 0.282167 12 0.0003 3.3 0.0140 5.4 -17.7 1504 2065

2-4.1c 0.282078 15 0.0013 3.2 0.0535 3.0 -21.0 1667 2243

2-6.1c 6.47 0.19 0.282137 11 0.0008 1.1 0.0308 1.0 -18.9 1564 2126

2-6.2r 6.64 0.23 0.282119 11 0.0008 2.9 0.0304 2.5 -19.5 1588 2161

2-8.1c 0.282183 11 0.0010 1.3 0.0427 1.3 -17.3 1510 2038

2-8.2r 0.282216 18 0.0010 1.7 0.0379 1.6 -16.1 1461 1973

2-11.1c 6.58 0.19 0.282147 11 0.0007 1.3 0.0296 1.7 -18.5 1548 2106

2-11.2r 6.64 0.21 0.282179 10 0.0006 2.6 0.0225 2.9 -17.3 1497 2043

2-12.1c 7.02 0.24 0.282165 10 0.0006 1.2 0.0217 1.4 -17.8 1516 2070

2-12.2r 7.34 0.30 0.282128 10 0.0004 2.9 0.0156 2.9 -19.1 1561 2141

2-10.1c 0.282164 10 0.0007 2.0 0.0273 2.4 -17.9 1522 2073

2-10.2r 0.282173 12 0.0015 1.4 0.0606 1.3 -17.7 1542 2060

2-13.1c 0.282140 11 0.0008 2.3 0.0319 1.9 -18.7 1559 2120

2-14.1c 0.282165 11 0.0008 0.5 0.0299 0.8 -17.9 1524 2071

2-16.3r 6.38 0.18 0.282191 25 0.0005 2.7 0.0203 2.4 -16.9 1477 2019

2-17.1c 6.48 0.22 0.282096 23 0.0007 1.2 0.0310 1.4 -20.3 1619 2205

2-17.2r 6.69 0.18 0.282080 35 0.0017 1.4 0.0790 1.0 -21.0 1684 2242

2-19.1c 7.24 0.24 0.282162 11 0.0007 0.6 0.0301 0.6 -18.0 1527 2077

2-19.2r 6.78 0.19 0.282176 12 0.0007 0.6 0.0281 1.4 -17.5 1506 2050

2-20.1c 6.63 0.27 0.282232 24 0.0008 3.5 0.0316 4.1 -15.5 1432 1941

2-20.2r 6.81 0.23 0.282156 21 0.0008 2.5 0.0335 2.1 -18.2 1539 2089

2-24.3r 7.38 0.19

Page 19: Analytical methods€¦ · Analytical methods The zircon O isotope determination was performed with an IMS 1280 ion probe (CAMECA) at the SIMS Laboratory of the Institute of Geology

Spot numbera

δ18O (‰)

2σ SE 176Hf/177Hf 2σ SE (ppm)

176Lu/177Hf 2σ SE

(%) 176Yb/177Hf

2σ SE (%)

εHf(t) TDM

(Ma) T2DM

(Ma)

Wonju granite (JC061115-08)

1-3.1c 0.281952 21 0.0003 2.9 0.0130 2.8 -25.3 1798 2481

1-3.2r 0.281969 10 0.0004 1.8 0.0160 2.1 -24.7 1779 2449

1-6.2c 0.282231 17 0.0014 9.7 0.0543 9.9 -15.5 1459 1946

1-6.1r 0.282218 12 0.0007 2.7 0.0275 2.9 -15.9 1447 1967

1-7.1c 0.282278 9 0.0003 2.7 0.0130 2.7 -13.7 1350 1848

1-8.3r 0.282249 8 0.0007 1.2 0.0266 1.7 -14.8 1405 1907

1-9.2r 7.02 0.23 0.282090 10 0.0005 1.0 0.0205 1.6 -20.4 1617 2215

1-10.2c 0.281997 8 0.0001 4.8 0.0065 4.0 -23.7 1729 2393

1-10.1r 0.281994 8 0.0003 1.0 0.0116 1.2 -23.8 1738 2399

2-2.2r 7.81 0.25 0.282163 10 0.0002 12.1 0.0091 9.6 -17.8 1506 2071

2-3.2r 6.84 0.20 0.282283 10 0.0005 3.0 0.0176 1.3 -13.6 1350 1839

2-4.2r 6.44 0.19

2-4.3r 6.67 0.21 0.282222 10 0.0004 2.6 0.0160 1.7 -15.7 1432 1957

2-6.2r 7.04 0.18 0.282201 9 0.0005 2.7 0.0183 0.9 -16.5 1463 1998

2-7.2r 8.54 0.15 0.282080 16 0.0003 12.0 0.0136 11.0 -20.8 1622 2233

2-8.2r 6.46 0.21 0.282204 10 0.0003 2.6 0.0130 1.2 -16.4 1454 1992

2-9.1c 6.17 0.23 0.282192 10 0.0005 1.0 0.0210 1.0 -16.8 1478 2016

2-9.2r 6.76 0.20 0.282201 11 0.0004 3.3 0.0196 1.6 -16.5 1462 1998

2-10.1c 7.51 0.14 0.282289 13 0.0004 1.7 0.0169 2.0 -13.4 1338 1826

2-10.2r 6.50 0.21 0.282203 13 0.0004 1.6 0.0188 1.8 -16.4 1459 1994

2-11.1c 0.282347 20 0.0039 3.1 0.1749 3.9 -11.7 1384 1733

2-11.2r 0.282208 19 0.0004 2.8 0.0150 2.0 -16.2 1449 1984

Yeoju granite (JC061116-05)

1-1.1c 0.282169 16 0.0007 1.0 0.0301 0.8 -17.6 1516 2061

1-1.2r 0.282127 15 0.0005 1.0 0.0193 1.5 -19.1 1565 2142

1-2.2r 0.282085 13 0.0003 3.2 0.0139 2.4 -20.5 1617 2222

1-5.1c 0.282075 15 0.0006 4.2 0.0233 3.9 -20.9 1639 2243

1-5.2c 0.282103 17 0.0009 1.6 0.0364 1.5 -20.0 1615 2190

1-6.2r 0.282129 20 0.0005 1.0 0.0210 0.8 -19.0 1562 2138

Yeoju granite (JC061116-06)

1-1.1c 0.282148 12 0.0010 3.1 0.0434 3.5 -18.4 1557 2104

1-1.2r 0.282168 11 0.0006 2.4 0.0248 1.2 -17.7 1515 2063

1-7.1c 0.282158 16 0.0007 1.1 0.0316 1.9 -18.0 1533 2083

1-7.2r 0.282162 17 0.0007 6.0 0.0249 3.4 -17.9 1524 2075

1-8.1c 0.282151 11 0.0007 2.5 0.0289 2.3 -18.3 1540 2097

1-8.2r 0.282172 9 0.0005 0.8 0.0197 0.7 -17.5 1503 2055

2-1.1c 6.87 0.25 0.282161 12 0.0008 1.9 0.0364 2.7 -17.9 1533 2078

2-1.2r 0.282152 11 0.0007 2.9 0.0262 1.8 -18.2 1539 2095

2-2.1c 6.47 0.23 0.282140 10 0.0007 3.4 0.0296 5.1 -18.7 1556 2118

2-2.2r 6.38 0.21 0.282168 8 0.0006 0.4 0.0247 0.6 -17.7 1514 2063

2-4.3r 6.56 0.31 0.282165 27 0.0008 1.6 0.0287 2.8 -17.8 1524 2070

2-5.2r 6.48 0.12 0.282211 16 0.0008 4.3 0.0290 2.0 -16.2 1461 1981

Page 20: Analytical methods€¦ · Analytical methods The zircon O isotope determination was performed with an IMS 1280 ion probe (CAMECA) at the SIMS Laboratory of the Institute of Geology

Spot numbera

δ18O (‰)

2σ SE 176Hf/177Hf 2σ SE (ppm)

176Lu/177Hf 2σ SE

(%) 176Yb/177Hf

2σ SE (%)

εHf(t) TDM

(Ma) T2DM

(Ma)

1-6.4r 0.282157 18 0.0009 1.3 0.0383 1.3 -18.1 1542 2086

2-7.1c 6.39 0.18 0.282151 11 0.0010 1.5 0.0411 1.8 -18.3 1554 2099

2-7.2r 6.46 0.18 0.282164 13 0.0010 0.4 0.0389 1.4 -17.8 1535 2073

2-9.1c 6.90 0.27 0.282183 14 0.0015 2.1 0.0642 2.5 -17.2 1528 2039

2-9.2r 0.282150 9 0.0007 0.3 0.0294 0.7 -18.3 1543 2099

2-10.1c 6.96 0.29 0.282161 23 0.0012 2.2 0.0522 3.1 -18.0 1547 2080

2-10.2r 0.282177 22 0.0009 3.9 0.0368 2.2 -17.4 1512 2047

2-11.2r 0.282138 12 0.0007 1.5 0.0289 0.7 -18.7 1560 2122

2-12.1r 6.44 0.24 0.282158 13 0.0007 4.4 0.0290 3.0 -18.0 1530 2083

2-12.2c 0.282110 14 0.0006 4.1 0.0284 4.2 -19.7 1595 2176

2-14.3r 0.282159 10 0.0006 1.3 0.0247 0.5 -18.0 1526 2081

Chungju porphyritic granodiorite (130418-05A)

Session 1b

1-3.1c 0.282179 18 0.0012 5.4 0.0526 5.3 -17.3 1521 2044

1-3.2r 0.282155 13 0.0006 2.0 0.0258 1.2 -18.1 1531 2087

1-4.1c 7.83 0.26 0.282152 15 0.0009 2.3 0.0413 2.4 -18.2 1548 2095

1-4.2r 7.53 0.26 0.282155 17 0.0008 2.7 0.0362 1.4 -18.1 1541 2089

1-8.1c 0.282179 17 0.0010 2.3 0.0437 2.5 -17.3 1514 2043

1-8.2r 0.282161 18 0.0005 4.4 0.0222 3.1 -17.8 1519 2075

1-10.1c 7.60 0.23 0.282163 13 0.0011 3.1 0.0462 3.7 -17.8 1538 2075

1-10.2r 7.51 0.24 0.282171 10 0.0007 0.5 0.0282 0.7 -17.5 1512 2057

1-11.1c 0.282217 19 0.0010 2.4 0.0465 3.0 -15.9 1461 1969

1-11.2r 0.282169 11 0.0007 2.6 0.0269 1.7 -17.6 1514 2061

1-12.1c 0.282179 15 0.0010 1.1 0.0432 1.6 -17.3 1513 2043

1-12.2r 0.282232 11 0.0011 0.8 0.0454 1.1 -15.4 1442 1940

1-18.1c 0.282170 16 0.0010 1.6 0.0446 1.7 -17.6 1526 2061

1-18.2r 0.282186 9 0.0007 2.7 0.0313 2.3 -17.0 1494 2028

Session 2

2-2.1c 7.80 0.21 0.282177 15 0.0009 5.8 0.0404 6.2 -17.3 1514 2047

2-2.2r 7.90 0.22 0.282201 14 0.0010 4.4 0.0444 3.4 -16.5 1485 2001

2-3.1c 7.61 0.26 0.282177 14 0.0009 1.4 0.0421 1.4 -17.3 1515 2047

2-3.2r 7.64 0.18 0.282216 13 0.0008 0.9 0.0340 1.6 -15.9 1454 1970

Chungju granite dyke (14CH07)

2-3.1c 0.282300 43 0.0020 1.9 0.1028 2.6 -12.8 1381 1809

2-3.2r 0.282340 46 0.0019 3.7 0.0893 4.5 -11.4 1320 1730

2-4.1c 7.19 0.24 0.282400 11 0.0009 6.9 0.0384 6.8 -9.2 1201 1606

2-5.2c 7.58 0.22 0.282419 28 0.0019 3.4 0.0952 3.8 -8.6 1206 1576

2-5.1r 7.48 0.24 0.282414 26 0.0016 4.2 0.0797 4.6 -8.7 1204 1583

2-12.1c 6.41 0.26 0.282285 32 0.0014 5.9 0.0678 5.6 -13.3 1379 1834

2-12.2r 6.44 0.31

2-17.1c 6.38 0.32 0.282407 19 0.0008 3.6 0.0293 1.3 -8.9 1190 1592

2-17.2r 6.65 0.23 0.282403 17 0.0009 2.2 0.0313 1.2 -9.1 1198 1600

2-19.1r 6.90 0.24 0.282436 11 0.0011 0.9 0.0469 1.4 -7.9 1157 1537

Page 21: Analytical methods€¦ · Analytical methods The zircon O isotope determination was performed with an IMS 1280 ion probe (CAMECA) at the SIMS Laboratory of the Institute of Geology

Spot numbera

δ18O (‰)

2σ SE 176Hf/177Hf 2σ SE (ppm)

176Lu/177Hf 2σ SE

(%) 176Yb/177Hf

2σ SE (%)

εHf(t) TDM

(Ma) T2DM

(Ma)

2-21.2r 6.73 0.21 0.282492 53 0.0013 3.4 0.0542 2.6 -6.0 1085 1429

Daejeon two mica granite (130418-01)

1-11.2r 0.281852 23 0.0003 13.6 0.0125 12.0 -28.5 1931 2668

2-1.1c 8.35 0.16

2-1.2r 8.44 0.18 0.282295 9 0.0003 0.1 0.0129 0.4 -12.8 1327 1808

2-25.1c 7.90 0.28 0.282004 8 0.0003 3.5 0.0159 3.1 -23.1 1727 2374

2-30.2r 7.26 0.14

2-61.2c 0.281972 8 0.0003 2.1 0.0127 1.9 -24.3 1768 2436

2-61.1r 7.53 0.27 0.282021 8 0.0002 0.6 0.0072 1.4 -22.5 1696 2340

2-62.1c 7.81 0.16 0.282001 11 0.0003 2.1 0.0153 2.6 -23.2 1730 2380

2-62.2r 7.78 0.28 0.282016 16 0.0005 2.1 0.0227 1.8 -22.7 1716 2352

2-63.1c 7.29 0.26 0.282071 10 0.0003 3.8 0.0141 4.8 -20.8 1634 2244

Daejeon two mica granite (130523-01)

1-7.1c 0.281960 34 0.0008 2.7 0.0332 3.3 -24.8 1808 2463

1-13.1r 0.281965 21 0.0003 9.2 0.0111 8.5 -24.6 1777 2451

2-1.2r 8.08 0.30

2-2.2r 8.15 0.22 0.282109 28 0.0012 2.1 0.0559 1.5 -19.6 1619 2176

2-3.5r 7.04 0.32

2-4.2r 7.19 0.23

2-6.2r 7.47 0.26

2-7.2r 7.62 0.27

2-8.2r 7.49 0.31

2-10.2r 7.22 0.18 0.282033 16 0.0011 5.7 0.0500 3.6 -22.2 1723 2323

2-11.2r 7.66 0.22 0.282025 12 0.0008 3.4 0.0356 1.7 -22.5 1718 2336

2-12.2r 0.282016 11 0.0004 0.8 0.0188 0.9 -22.8 1715 2352

3-2.1c 7.46 0.20 0.281855 18 0.0006 11.0 0.0288 11.1 -28.5 1945 2664

3-2.2r 7.53 0.34 0.281850 15 0.0006 6.5 0.0289 5.9 -28.6 1951 2673

3-5.1c 8.95 0.26

3-6.1c 7.68 0.23 0.281905 13 0.0006 1.6 0.0275 1.0 -26.7 1876 2567

3-6.2r 7.73 0.25 0.281947 13 0.0005 4.7 0.0241 4.1 -25.2 1814 2486

3-17.2c 7.13 0.20

3-32.1c 1.36 0.22 0.282295 28 0.0015 3.3 0.0603 3.8 -13.0 1368 1816

3-32.2r 1.26 0.22

3-32.3r 1.41 0.11

3-33.2c 0.281982 35 0.0008 10.9 0.0384 9.9 -24.0 1779 2420

3-38.1c 0.281991 13 0.0007 1.9 0.0307 2.0 -23.7 1759 2401

3-45.1c 0.281954 15 0.0006 3.2 0.0261 2.7 -25.0 1807 2472

a Spot numbers are taken from Table A2.

b SHRIMP U-Pb results are taken from Cheong et al. (2015b).