The discovery of the independent thallium (Tl) deposit in Xiangquan, Anhui Province, provides an example for the study of the enrichment and mineralization of the highly dispersed rare metal element Tl. In this paper, a range of methods are used to characterize the enrichment, depletion, migration and occurrence state of Tl in different types of rocks and ores: lithogeochemistry; electron microprobe and principal component analysis; and exploring the significance of geochemical anomalies on the geological indication of Tl deposit formation. The results show that Tl is mainly distributed in silicified rocks of the Ordovician Lunshan Formation, and its average content is 307.08 g g–1. The contents of As, Sb, S, Fe2O3 and Tl in wall rocks, altered rocks and ores are significantly correlated, indicating a close relationship with Tl accumulation. The geochemical characteristics confirm that pyrite in the study area originates from submarine hot-water deposition. The main carrier of Tl is pyrite of hydrothermal sedimentary origin, in which Tl occurs as isomorphs in fine grains of pyrite. Tl mineralization may be accompanied by silicification, and the metallogenic environment is in a relative oxidation state. The mineralization process results in the geochemical differentiation of elements. Under the influence of tectonic and low-temperature hydrothermal activities, ore-forming elements migrate to structurally favourable conditions for mineralization to occur. This study provides a basis for further understanding the mechanisms of co-enrichment and separation of Tl and guidance for Tl mineral exploration.
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October 23, 2024
Thallium enrichment mechanism and geological significance of the Xiangquan thallium deposit in Anhui Province, China Available to Purchase
Zhijuan Guo;
Zhijuan Guo
*
1
Institute of Geophysical and Geochemical Exploration, Chinese Academy of Geological Sciences
, Langfang, Hebei 065000, China
*
Correspondence: [email protected]
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Renting Xu;
Renting Xu
1
Institute of Geophysical and Geochemical Exploration, Chinese Academy of Geological Sciences
, Langfang, Hebei 065000, China
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Yuntao Song;
Yuntao Song
1
Institute of Geophysical and Geochemical Exploration, Chinese Academy of Geological Sciences
, Langfang, Hebei 065000, China
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Wei Han;
Wei Han
1
Institute of Geophysical and Geochemical Exploration, Chinese Academy of Geological Sciences
, Langfang, Hebei 065000, China
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Mu Kong;
Mu Kong
1
Institute of Geophysical and Geochemical Exploration, Chinese Academy of Geological Sciences
, Langfang, Hebei 065000, China
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Yang Fan
Yang Fan
1
Institute of Geophysical and Geochemical Exploration, Chinese Academy of Geological Sciences
, Langfang, Hebei 065000, China
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Zhijuan Guo
*
1
Institute of Geophysical and Geochemical Exploration, Chinese Academy of Geological Sciences
, Langfang, Hebei 065000, China
Renting Xu
1
Institute of Geophysical and Geochemical Exploration, Chinese Academy of Geological Sciences
, Langfang, Hebei 065000, China
Yuntao Song
1
Institute of Geophysical and Geochemical Exploration, Chinese Academy of Geological Sciences
, Langfang, Hebei 065000, China
Wei Han
1
Institute of Geophysical and Geochemical Exploration, Chinese Academy of Geological Sciences
, Langfang, Hebei 065000, China
Mu Kong
1
Institute of Geophysical and Geochemical Exploration, Chinese Academy of Geological Sciences
, Langfang, Hebei 065000, China
Yang Fan
1
Institute of Geophysical and Geochemical Exploration, Chinese Academy of Geological Sciences
, Langfang, Hebei 065000, China
*
Correspondence: [email protected]
Publisher: Geological Society of London
Received:
02 Jun 2024
Revision Received:
08 Aug 2024
Accepted:
19 Aug 2024
First Online:
05 Sep 2024
Online ISSN: 2041-4943
Print ISSN: 1467-7873
Funding
- Funder(s):China Geological Survey, Ministry of Natural Resources
- Award Id(s): DD20221641, DD20230013
- Award Id(s):
- Funder(s):China Geological Survey, Ministry of Natural Resources
- Award Id(s): AS2014J02
- Award Id(s):
© 2024 The Author(s). Published by The Geological Society of London for GSL and AAG. All rights, including for text and data mining (TDM), artificial intelligence (AI) training, and similar technologies, are reserved. For permissions: https://www.lyellcollection.org/publishing-hub/permissions-policy. Publishing disclaimer: https://www.lyellcollection.org/publishing-hub/publishing-ethics
© 2024 The Author(s)
Geochemistry: Exploration, Environment, Analysis (2024) 24 (4): geochem2024-028.
Article history
Received:
02 Jun 2024
Revision Received:
08 Aug 2024
Accepted:
19 Aug 2024
First Online:
05 Sep 2024
Citation
Zhijuan Guo, Renting Xu, Yuntao Song, Wei Han, Mu Kong, Yang Fan; Thallium enrichment mechanism and geological significance of the Xiangquan thallium deposit in Anhui Province, China. Geochemistry: Exploration, Environment, Analysis 2024;; 24 (4): geochem2024–028. doi: https://doi.org/10.1144/geochem2024-028
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Index Terms/Descriptors
- Anhui China
- Asia
- barite
- calcite
- Cambrian
- carbonates
- chemical dispersion
- China
- depletion
- electron microscopy data
- enrichment
- Far East
- fluorides
- fluorite
- framework silicates
- geochemical anomalies
- geochemistry
- halides
- ICP mass spectra
- laser ablation
- laser methods
- lithogeochemistry
- mass spectra
- mechanism
- metal ores
- metals
- migration
- mineral deposits, genesis
- mineral exploration
- Ordovician
- ore bodies
- ore-forming fluids
- oxidation
- Paleozoic
- petrography
- pyrite
- quartz
- SEM data
- silica minerals
- silicates
- spectra
- sulfates
- sulfides
- thallium
- trace elements
- Upper Cambrian
- wall rocks
- X-ray fluorescence spectra
- Yangtze Plate
- thallium ores
- atomic emission spectra
- Lunshan Formation
- Xiangquan Deposit
- chrysothallite
- Guanyintai Formation
- chloride hydrate
Latitude & Longitude
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