Geochemistry of some banded iron-formations of the archean supracrustals, Jharkhand–Orissa region, India

Journal of Earth system science

Kaushik K Ghosh2²  H N Bhattacharya1¹  Indranil Chakraborty1¹ 

[1] Department of Geology, Presidency College, 86/1 College Street, Calcutta 700 073, India.$$;Department of Geology, Jogamaya Devi College, 92 S.P. Mukherjee Road, Calcutta 700 026, India.$$

关键词: Archean;    banded iron-formation;    geochemistry;    hydrothermal fluids;    seawater.;   

DOI  :  

学科分类：天文学(综合)

来源: Indian Academy of Sciences

【 摘 要 】

Banded iron-formations (BIF) form an important part of the Archean supracrustal belts of the Jharkhand–Orissa region, India. Major, trace and REE chemistry of the banded iron-formation of the Gandhamardan, Deo Nala, Gorumahisani and Noamundi sections of the Jharkhand–Orissa region are utilized to explore the source of metals and to address the thermal regime of the basin floor and the redox conditions of the archean sea. Hydrothermal fluids of variable temperatures might have contributed the major part of the Fe and other trace elements to the studied banded iron-formations. Diagenetic fluids from the sea floor sediments and river water might have played a subdued role in supplying the Fe and other elements for the banded iron-formations.

【 授权许可】

Unknown