Research progress in the geological characteristics and material sources of fluorite deposits in the Heyu-Checun area, western Henan Province

ZHANG Kai-Tao; BAI De-Sheng; Li Jun-Sheng; LIU Ji-Feng; XU Dong; SU Yang-Yan; FAN Kang

doi:10.11720/wtyht.2022.1438

2022 Vol. 46, No. 4

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ZHANG Kai-Tao, BAI De-Sheng, Li Jun-Sheng, LIU Ji-Feng, XU Dong, SU Yang-Yan, FAN Kang. 2022. Research progress in the geological characteristics and material sources of fluorite deposits in the Heyu-Checun area, western Henan Province. Geophysical and Geochemical Exploration, 46(4): 787-797. doi: 10.11720/wtyht.2022.1438

Citation:

ZHANG Kai-Tao, BAI De-Sheng, Li Jun-Sheng, LIU Ji-Feng, XU Dong, SU Yang-Yan, FAN Kang. 2022. Research progress in the geological characteristics and material sources of fluorite deposits in the Heyu-Checun area, western Henan Province. Geophysical and Geochemical Exploration, 46(4): 787-797. doi: 10.11720/wtyht.2022.1438

Research progress in the geological characteristics and material sources of fluorite deposits in the Heyu-Checun area, western Henan Province

1. No.2 Institute of Geological & Mineral Resources Survey of Henan, Zhengzhou 450001, China；
2. No.3 Institute of Geological & Mineral Resources Survey of Henan, Zhengzhou 450000, China

Received Date: 09 August 2021

Revised Date: 20 August 2022

Publish Date: 17 August 2022

Abstract

Abstract

Based on the data on the geology, minerals, exploration, and geochemistry of more than 30 fluorite deposits in the Heyu-Checun area, western Henan Province, this study summarized the types, spatial distribution, and geochemical characteristics of fluorite deposits in the area and explored the genesis and material sources of the deposits. The fluorite deposits in this area have simple types and are distributed in Yanshanian granites and along the fault zone of the external contact zone of the granites. The formation ages of the Heyu and Taishanmiao plutons are 124.7~148.2 Ma and 115~123.1 Ma, respectively. The mineralized age of fluorites is 120~126.8 Ma, indicating that the mineralization occurred in the late stage of the intrusion of the Heyu pluton and the early stage of the intrusion of the Taishanmiao pluton. The ore-forming fluids belong to the NaCl-H2O system with a medium-low temperature, a low salinity, and a low density, indicating that the deposits in the area are medium-low-temperature supergene hydrothermal fluorite deposits. The chondrite-normalized REE patterns of fluorites in the area can be divided into slightly leftward, flat, and rightward types dominated by the rightward type. Moreover, the rightward chondrite-normalized REE patterns of fluorites are similar to those of the Yanshanian granites, both showing strongly negative Eu anomalies and weakly negative Ce anomalies. This finding indicates that the Yanshanian granites provide materials for the formation of fluorites. The metallogenic element F may mainly originate from the Heyu and Taishanmiao plutons, while the metallogenic element Ca partly comes from granites as surrounding rocks.
- geological characteristics /
- material sources /
- fluorite /
- Heyu-Checun

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References

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