Isotopic Composition (δ13C, δ18O) and Origin of Manganese Carbonate Ores of the Usa Deposit (Kuznetskii Alatau)

被引：1
作者：
V. N. Kuleshov
A. F. Bych
机构：
[1] Russian Academy of Sciences,Institute of Geology of Ore Deposits, Petrography, Mineralogy, and Geochemistry (IGEM)
[2] Novokuznetsk Complex Geological-Geophysical Expedition,Lithological Team of ZapSibGU
来源：
Lithology and Mineral Resources | 2002年 / 37卷 / 4期
关键词：
Oxygen; Manganese; Organic Carbon; Isotopic Composition; Host Rock;
D O I：
10.1023/A:1019995322515
中图分类号：
学科分类号：
摘要：
Isotopic compositions of carbon and oxygen are studied in different (rhodochrosite, calcareous-rhodochrosite, and chlorite–rhodochrosite) types of manganese carbonate ores from the Usa deposit (Kuznetskii Alatau). The δ13C value varies from –18.4 to –0.7‰, while the δ18O value ranges between 18.4 and 23.0‰. Host rocks are characterized by higher values of δ13C (–1.9 to 1.0‰) and δ18O (21.2 to 24.3‰). The obtained isotope data suggest an active participation of oxidized organic carbon in the formation of manganese carbonates. Manganese carbonate ores of the deposit are probably related to metasomatic processes.
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页码：330 / 343
页数：13
相关论文
共 3 条
  • [1] Pushkina Z.V.(1960)Geochemistry of the Usa Manganese Deposit Dokl. Akad. Nauk SSSR 135 176-178
  • [2] Sokolova E.A.(1960)The Distribution of Manganese and Phosphorus in Different Types of Rocks of the Usa Formation (Lower Cambrian of Kuznetskii Alatau) Dokl. Akad. Nauk SSSR 135 717-719
  • [3] Varentsov I.M.(1961)Some Problems of Geochemistry of the Usa Manganese Deposit (Kuznetskii Alatau) Dokl. Akad. Nauk SSSR 138 1175-1178
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