A preliminary discussion on the bio-metallogenesis of TI deposits in the low-temperature minerogenetic province of southwestern China |
| |
| Authors: | Zhang Zhong Zhang BaoGui Hu Jing Yao LinBo and Tian YiFu |
| |
| Institution: | (1) The Key Laboratory of Ore Deposit Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550002, China |
| |
| Abstract: | Starting with the research status of bio-metallogenesis of TI deposits and their geology, this work deals with the geological
background of TI enrichment and mineralization and the mechanism of bio-metallogenesis of TI deposits, as exemplified by TI
deposits in the low-temperature minerogenetic province. This research on the bio-metallogenesis of TI deposits is focused
on the correlations between bio-enrichment and TI, the enrichment of TI in micro-paleo-animals in rocks and ores, bio-fossil
casts in TI-rich ores, the involvement of bio-sulfur in minerogenesis and the enrichment of bio-genetic organic carbon in
TI ores. Thallium deposits have experienced two ore-forming stages: syngenetic bio-enrichment and epigenetic hydrothermal
reworking (or transformation). Owing to the intense epigenetic hydrothermal reworking, almost no bio-residues remain in syngenetically
bio-enriched TI ores, thereby the TI deposits display the characteristics of hydrothermally reoworked deposits.
Supported by the National Natural Science Foundation of China (Grant No. 40372047) |
| |
| Keywords: | thallium TI deposit bio-metallogenesis bio-fossil cast unusual enrichment of TI TI metallogenetic model |
| 本文献已被 SpringerLink 等数据库收录！ |
|
