Abstract
In Kamchatka, Central Koryak, Central Kamchatka and East Kamchatka metallogenic belts are distributed from northwest to southeast. K-Ar age, sulfur isotopic composition of sulfide minerals, and bulk chemical compositions of ores were analyzed for 13 ore deposits including hydrothermal gold-silver and base metal, in order to elucidate the geological time periods of ore formation, relationship to regional volcanic belts, type of mineralization, and origin of sulfur in sulfides. The dating yielded ore-forming ages of 41Ma for the Ametistovoe deposit in the Central Koryak, 17.1Ma for the Zolotoe deposit and 6.9Ma for the Aginskoe deposit in the Central Kamchatka, and 7.4Ma for the Porozhistoe deposit and 5.1Ma for the Vilyuchinskoe deposit in the East Kamchatka metallogenic belt. The data combined with previous data of ore-forming ages indicate that the time periods of ore formation in these metallogenic belts become young towards the southeast. The averaged δ34SCDT of sulfides are -2.8‰ for the Ametistovoe deposit in Central Koryak, -1.8‰ to +2.0‰ (av. -0.1‰) for the Zolotoe, Aginskoe, Baranievskoe and Ozernovskoe deposits in Central Kamchatka, and -0.7 to +3.8‰ (av. +1.7‰) for Bolshe-Bannoe, Kumroch, Vilyuchinskoe, Bystrinskoe, Asachinskoe, Rodnikovoe, and Mutnovskoe deposits in East Kamchatka. The negative δ34SCDT value from the Ametistovoe deposit in Central Koryak is ascribed to the contamination of 32S-enriched sedimentary sulfur in the Ukelayat-Lesnaya River trough of basement rock. Comparison of the sulfur isotope compositions of the mineral deposits shows similarity between the Central Koryak and Magadan metallogenic belts, and East Kamchatka and Kuril Islands belts. The Central Kamchatka belt is intermediate between these two groups in term of sulfur isotopic composition.
| Original language | English |
|---|---|
| Pages (from-to) | 210-223 |
| Number of pages | 14 |
| Journal | Resource Geology |
| Volume | 63 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - Apr 1 2013 |
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All Science Journal Classification (ASJC) codes
- Geology
- Geochemistry and Petrology
Cite this
Ore-forming Ages and Sulfur Isotope Study of Hydrothermal Deposits in Kamchatka, Russia. / Takahashi, Ryohei; Matsueda, Hiroharu; Okrugin, Victor M.; Shikazono, Naotatsu; Ono, Shuji; Imai, Akira; Andreeva, Elena D.; Watanabe, Koichiro.
In: Resource Geology, Vol. 63, No. 2, 01.04.2013, p. 210-223.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Ore-forming Ages and Sulfur Isotope Study of Hydrothermal Deposits in Kamchatka, Russia
AU - Takahashi, Ryohei
AU - Matsueda, Hiroharu
AU - Okrugin, Victor M.
AU - Shikazono, Naotatsu
AU - Ono, Shuji
AU - Imai, Akira
AU - Andreeva, Elena D.
AU - Watanabe, Koichiro
PY - 2013/4/1
Y1 - 2013/4/1
N2 - In Kamchatka, Central Koryak, Central Kamchatka and East Kamchatka metallogenic belts are distributed from northwest to southeast. K-Ar age, sulfur isotopic composition of sulfide minerals, and bulk chemical compositions of ores were analyzed for 13 ore deposits including hydrothermal gold-silver and base metal, in order to elucidate the geological time periods of ore formation, relationship to regional volcanic belts, type of mineralization, and origin of sulfur in sulfides. The dating yielded ore-forming ages of 41Ma for the Ametistovoe deposit in the Central Koryak, 17.1Ma for the Zolotoe deposit and 6.9Ma for the Aginskoe deposit in the Central Kamchatka, and 7.4Ma for the Porozhistoe deposit and 5.1Ma for the Vilyuchinskoe deposit in the East Kamchatka metallogenic belt. The data combined with previous data of ore-forming ages indicate that the time periods of ore formation in these metallogenic belts become young towards the southeast. The averaged δ34SCDT of sulfides are -2.8‰ for the Ametistovoe deposit in Central Koryak, -1.8‰ to +2.0‰ (av. -0.1‰) for the Zolotoe, Aginskoe, Baranievskoe and Ozernovskoe deposits in Central Kamchatka, and -0.7 to +3.8‰ (av. +1.7‰) for Bolshe-Bannoe, Kumroch, Vilyuchinskoe, Bystrinskoe, Asachinskoe, Rodnikovoe, and Mutnovskoe deposits in East Kamchatka. The negative δ34SCDT value from the Ametistovoe deposit in Central Koryak is ascribed to the contamination of 32S-enriched sedimentary sulfur in the Ukelayat-Lesnaya River trough of basement rock. Comparison of the sulfur isotope compositions of the mineral deposits shows similarity between the Central Koryak and Magadan metallogenic belts, and East Kamchatka and Kuril Islands belts. The Central Kamchatka belt is intermediate between these two groups in term of sulfur isotopic composition.
AB - In Kamchatka, Central Koryak, Central Kamchatka and East Kamchatka metallogenic belts are distributed from northwest to southeast. K-Ar age, sulfur isotopic composition of sulfide minerals, and bulk chemical compositions of ores were analyzed for 13 ore deposits including hydrothermal gold-silver and base metal, in order to elucidate the geological time periods of ore formation, relationship to regional volcanic belts, type of mineralization, and origin of sulfur in sulfides. The dating yielded ore-forming ages of 41Ma for the Ametistovoe deposit in the Central Koryak, 17.1Ma for the Zolotoe deposit and 6.9Ma for the Aginskoe deposit in the Central Kamchatka, and 7.4Ma for the Porozhistoe deposit and 5.1Ma for the Vilyuchinskoe deposit in the East Kamchatka metallogenic belt. The data combined with previous data of ore-forming ages indicate that the time periods of ore formation in these metallogenic belts become young towards the southeast. The averaged δ34SCDT of sulfides are -2.8‰ for the Ametistovoe deposit in Central Koryak, -1.8‰ to +2.0‰ (av. -0.1‰) for the Zolotoe, Aginskoe, Baranievskoe and Ozernovskoe deposits in Central Kamchatka, and -0.7 to +3.8‰ (av. +1.7‰) for Bolshe-Bannoe, Kumroch, Vilyuchinskoe, Bystrinskoe, Asachinskoe, Rodnikovoe, and Mutnovskoe deposits in East Kamchatka. The negative δ34SCDT value from the Ametistovoe deposit in Central Koryak is ascribed to the contamination of 32S-enriched sedimentary sulfur in the Ukelayat-Lesnaya River trough of basement rock. Comparison of the sulfur isotope compositions of the mineral deposits shows similarity between the Central Koryak and Magadan metallogenic belts, and East Kamchatka and Kuril Islands belts. The Central Kamchatka belt is intermediate between these two groups in term of sulfur isotopic composition.
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UR - http://www.scopus.com/inward/citedby.url?scp=84875674593&partnerID=8YFLogxK
U2 - 10.1111/rge.12005
DO - 10.1111/rge.12005
M3 - Article
AN - SCOPUS:84875674593
VL - 63
SP - 210
EP - 223
JO - Resource Geology
JF - Resource Geology
SN - 1344-1698
IS - 2
ER -