Ore-Forming Fluid System of the Anqing Cu-Fe Deposit, Anhui Province, China

Abstract:

Fluid inclusions, carbon and oxygen isotopic compositions were discussed to understanding the ore-forming fluid system of Anqing Cu-Fe deposit. Homogeneous temperatures of fluid inclusions ranged from 124°C to 570°C, δ¹³C_PDB values of the gangue minerals ranged from-3.3 to-0.9, and δ¹⁸O values ranged from 9.4 to 10.7, respectively. The results reveal that the primary ore-forming fluid was magmatic hydrothermal fluid characterized by high temperature, the boiling and mixing of fluids occurred in the main mineralization stage, the magmatic water was dominant in the ore-forming process, the physicochemical condition changes of the fluid system led to the formation of skarn and the deposition of the ore minerals. The ore-forming materials were mainly derived from magma, partly provided by sedimentary strata.

• Periodical: Advanced Materials Research (Volumes 734-737)
• Pages: 135-138
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.734-737.135
• Online since: August 2013
• Authors: Guang Shu Yang, Yong Feng Yan, Peng Yu Feng
• Keywords: Fluid Inclusion, Geochemistry, Ore-Forming Fluid System, Skarn, Yueshan

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