Samgwang
South Chungcheong, Cheongyang gold district (Cheonan Metallogenic Province, Gyeonggi massif), Corée du Sud
Orogenic goldAu, Ag
- Type
- Mesothermal gold-silver quartz veins in Precambrian granitic gneiss
Eight massive auriferous quartz veins (Guksa, Bongamri, Sangban, Sinri, Daeheung 1 and 2, etc.) filling NE and NW fractures of fault zones; mined from 1928 to 1959 then from 1980 to 1995, more than 877 kg gold and 179 kg silver between 1985 and 1991, average grade 8.4 g/t Au and 3.6 g/t Ag. Stage I with arsenopyrite, pyrite, pyrrhotite, sphalerite, chalcopyrite, galena, electrum, argentite and argentian tetrahedrite; stage II with calcite only. Mineralisation age 127.1 ± 2.8 Ma (sericite K-Ar, So et al., 1988). Yoo et al. (2010): H2O-NaCl-CO2 fluids at 200 to 383 °C then H2O-NaCl at 110 to 385 °C, magmatic sulfur (H2S δ34S 1.5 to 4.8 ‰), magmatic water mixed with local meteoric water; veins linked to Daebo orogeny intrusions. Indicative coordinates: read on Figure 2 of Yoo et al. (2010), to within 5 km.
δ34S in ‰ (per mil) Values of the same system
Standard : CDT
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 4.5 ± 0.7 ‰ | 3.3 / 5.2 ‰ | 8 | stage I arsenopyrite Mean and standard deviation recalculated from 8 analyses, +3.3 to +5.2 (2-17 (Tongdong, So et al., 1988) +5.1; 4-21 (Bonghang, So et al., 1988) +5.0; 5-22 (Bonghang, So et al., 1988) +5.2; 0-6-1 (Guksabong, So et al., 1988) +5.1; 0-6-2 (Guksabong, So et al., 1988) +4.1; R7-27H (Bongamri) +3.8; A5E70 (Sangban) +3.3; A7E80CR (Sangban) +4.2). Orebody or vein in brackets, with the source when the value is taken from earlier work. | Yoo et al. (2010), Mineralogical, fluid inclusion, and stable isotope constraints on mech… |
| 3.6 ± 0.8 ‰ | 2.4 / 5.1 ‰ | 19 | stage I sphalerite Mean and standard deviation recalculated from 19 analyses, +2.4 to +5.1 (2level 70 (Tongdong) +3.2; 2-16 (Tongdong, So et al., 1988) +2.9; 0level104CR (Tongdong, Moon, 1986) +4.6; 2level4-5CR (Tongdong, Moon, 1986) +3.8; 5level5CR (Tongdong, Moon, 1986) +3.5; 4-21 (Bonghang, So et al., 1988) +5.0; 5-22 (Bonghang, So et al., 1988) +5.0; 0-6-1 (Guksabong, So et al., 1988) +4.0; 0-9-1 (Guksabong, So et al., 1988) +3.5; A2E-1 (Guksabong) +3.5; A3E160/20 (Guksabong) +3.2; R7-27H (Bongamri) +3.8; A3W200/9 (Sangban) +2.6; A5E70 (Sangban) +2.8; A5W175/20 (Sangban) +3.9; A5W300/3 (Sangban) +3.0; A7E80CR (Sangban) +5.1; A8E50CH (Sangban) +2.6; A8W55CH (Sangban) +2.4). Orebody or vein in brackets, with the source when the value is taken from earlier work. Calculated H2S δ34S (Ohmoto and Rye, 1979): 2level 70 +2.9; A2E-1 +3.2; A3E160/20 +3.0; R7-27H +3.5; A3W200/9 +2.3; A5E70 +2.6; A5W175/20 +3.6; A5W300/3 +2.7; A7E80CR +4.8; A8E50CH +2.3; A8W55CH +2.1 ‰. Isotopic temperatures: sphalerite-galena 162 ± 30 °C (4-21) and 329 ± 37 °C (0-6-1), chalcopyrite-galena 304 ± 6 °C (A2E-1) and 263 ± 6 °C (A3E160/20). | Yoo et al. (2010), Mineralogical, fluid inclusion, and stable isotope constraints on mech… |
| 3.3 ± 0.7 ‰ | 2.1 / 4.1 ‰ | 8 | stage I chalcopyrite Mean and standard deviation recalculated from 8 analyses, +2.1 to +4.1 (2-17 (Tongdong, So et al., 1988) +4.1; 0level104CR (Tongdong, Moon, 1986) +3.9; 2level4-5CR (Tongdong, Moon, 1986) +3.9; 0-6-2 (Guksabong, So et al., 1988) +3.0; 0-9-1 (Guksabong, So et al., 1988) +3.7; A2E-1 (Guksabong) +2.1; A3E160/20 (Guksabong) +2.9; A3W200/9 (Sangban) +2.6). Orebody or vein in brackets, with the source when the value is taken from earlier work. Calculated H2S δ34S (Ohmoto and Rye, 1979): A2E-1 +2.3; A3E160/20 +3.1; A3W200/9 +2.8 ‰. Isotopic temperatures: sphalerite-galena 162 ± 30 °C (4-21) and 329 ± 37 °C (0-6-1), chalcopyrite-galena 304 ± 6 °C (A2E-1) and 263 ± 6 °C (A3E160/20). | Yoo et al. (2010), Mineralogical, fluid inclusion, and stable isotope constraints on mech… |
| 1.4 ± 1 ‰ | −0.5 / 3 ‰ | 18 | stage I galena Mean and standard deviation recalculated from 18 analyses, -0.5 to +3.0 (2level 70 (Tongdong) +0.1; 2-16 (Tongdong, So et al., 1988) +1.5; 2-17 (Tongdong, So et al., 1988) +1.8; 0level104CR (Tongdong, Moon, 1986) +3.0; 2level4-5CR (Tongdong, Moon, 1986) +2.7; 5level5CR (Tongdong, Moon, 1986) +2.1; 4-21 (Bonghang, So et al., 1988) +1.1; 0-6-1 (Guksabong, So et al., 1988) +2.0; 0-8 (Guksabong, So et al., 1988) +0.6; A2E-1 (Guksabong) +0.2; A3E160/20 (Guksabong) +0.6; R7-27H (Bongamri) +2.6; A3W200/9 (Sangban) +1.3; A5E150/10 (Sangban) +1.8; A5W175/20 (Sangban) +2.3; A5W300/3 (Sangban) +0.6; A8E50CH (Sangban) +1.4; A8W55CH (Sangban) -0.5). Orebody or vein in brackets, with the source when the value is taken from earlier work. Calculated H2S δ34S (Ohmoto and Rye, 1979): 2level 70 +2.4; A2E-1 +2.1; A3E160/20 +2.8; R7-27H +4.6; A3W200/9 +3.2; A5E150/10 +3.8; A5W175/20 +4.3; A5W300/3 +2.6; A8E50CH +3.4; A8W55CH +1.5 ‰. Isotopic temperatures: sphalerite-galena 162 ± 30 °C (4-21) and 329 ± 37 °C (0-6-1), chalcopyrite-galena 304 ± 6 °C (A2E-1) and 263 ± 6 °C (A3E160/20). | Yoo et al. (2010), Mineralogical, fluid inclusion, and stable isotope constraints on mech… |
| 3.9 ± 0.4 ‰ | 3.6 / 4.2 ‰ | 2 | stage I pyrite Mean and standard deviation recalculated from 2 analyses, +3.6 to +4.2 (2level4-5CR (Tongdong, Moon, 1986) +4.2; 5level5CR (Tongdong, Moon, 1986) +3.6). Orebody or vein in brackets, with the source when the value is taken from earlier work. | Yoo et al. (2010), Mineralogical, fluid inclusion, and stable isotope constraints on mech… |
δ18O in ‰ (per mil) Values of the same system
Standard : V-SMOW
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 10.6 ± 3.7 ‰ | 5.2 / 16.2 ‰ | 22 | stage I quartz Mean and standard deviation recalculated from 22 analyses, +5.2 to +16.2 (2level 70 (Tongdong) +11.4; 2-17 (Tongdong, So et al., 1988) +7.7; 4-21 (Bonghang, So et al., 1988) +5.7; 6-3 (Bonghang, So et al., 1988) +5.2; 0-18 (Guksabong, grey quartz, So et al., 1988) +7.9; 0-8-1 (Guksabong, grey quartz, So et al., 1988) +7.6; A2E-1 (Guksabong) +7.6; A2Eend-377.12 (Guksabong) +15.1; R0-27H (Bongamri) +6.8; A3E135/TP17 (Sangban) +7.6; A3E310H/8 (Sangban, transparent quartz) +14.2; A3W200/9 (Sangban) +14.9; A5E70 (Sangban) +12.7; A5 alteration (Sangban) +13.6; A5 alteration (Sangban, grey quartz) +13.0; A6E60H13 (Sangban) +12.7; A6E170H14 (Sangban) +5.9; A6W170H2 (Sangban) +13.6; A7E25CR (Sangban) +16.2; A7E80CR (Sangban) +11.5; A8E50CH (Sangban) +14.9; A8W55CH (Sangban) +6.7). White quartz unless stated. Water δ18O (Matsuhisa et al., 1979, at inclusion temperatures): 2level 70 +2.5; 2-17 -1.7; 4-21 -5.9; 6-3 -0.6; 0-18 -1.5; 0-8-1 +0.1; A2E-1 +2.3; A2Eend-377.12 +8.2; R0-27H +1.5; A3E135/TP17 +2.3; A3E310H/8 +7.3; A3W200/9 +9.6; A5E70 +7.4; A5 alteration +6.7; A5 alteration +7.7; A6E60H13 +7.4; A6E170H14 -1.0; A6W170H2 +8.3; A7E25CR +10.9; A7E80CR +6.2; A8E50CH +9.6; A8W55CH -0.2 ‰. The text gives -5.7 to 0.1 ‰ for the water of the So et al. (1988) samples, the table goes down to -5.9 ‰ (4-21). | Yoo et al. (2010), Mineralogical, fluid inclusion, and stable isotope constraints on mech… |
δD in ‰ (per mil) Values of the same system
Standard : V-SMOW
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| −94 ± 5 ‰ | −102 / −87 ‰ | 11 | fluid-inclusion water in stage I quartz Mean and standard deviation recalculated from 11 analyses, -102 to -87 (2level 70 (Tongdong) -93; 2-17 (Tongdong, So et al., 1988) -102; 0-8-1 (Guksabong, grey quartz, So et al., 1988) -90; R0-27H (Bongamri) -93; A3E135/TP17 (Sangban) -94; A3E310H/8 (Sangban, transparent quartz) -101; A5E70 (Sangban) -92; A5 alteration (Sangban) -98; A5 alteration (Sangban, grey quartz) -87; A6E60H13 (Sangban) -91; A8W55CH (Sangban) -88). Water extracted by crushing (and decrepitation for a few samples) of quartz rich in carbonic inclusions; quartz-water hydrogen fractionation assumed negligible. | Yoo et al. (2010), Mineralogical, fluid inclusion, and stable isotope constraints on mech… |
Deposits of the same type
- Baguamiao China
- Gatsuurt Mongolia
- Dzuunmod area (minor deposits) Mongolia
- Boroo Mongolia
- Guoluolongwa China
- Awanda China
- Kolar India
- Muruntau Uzbekistan
Cite this page
IsoFind Atlas (2026). Samgwang, isotope signatures. https://www.isofind.tech/isotopes/en/deposits/samgwang/ (accessed 2026-10-22).
@misc{isofind2026samgwangisotopesignatures,
title = {Samgwang, isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/deposits/samgwang/},
note = {Accessed 2026-10-22}
}Updated : 2026-10-22