Mineral Chemical Characteristics and Constraint on Metamorphic Temperature of Garnet from the Liwu Group, Western Sichuan, China

HUANG Chixuan; TAN Hongqi; YANG Yulong; WANG Qiang; HU Junliang; TANG Yao

doi:10.3969/j.issn.1000-6532.2024.01.003

2024 No. 1

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Article navigation > Multipurpose Utilization of Mineral Resources > 2024 > 45(1): 15-26

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HUANG Chixuan, TAN Hongqi, YANG Yulong, WANG Qiang, HU Junliang, TANG Yao. Mineral Chemical Characteristics and Constraint on Metamorphic Temperature of Garnet from the Liwu Group, Western Sichuan, China[J]. Multipurpose Utilization of Mineral Resources, 2024, 45(1): 15-26. doi: 10.3969/j.issn.1000-6532.2024.01.003

Citation:

HUANG Chixuan, TAN Hongqi, YANG Yulong, WANG Qiang, HU Junliang, TANG Yao. Mineral Chemical Characteristics and Constraint on Metamorphic Temperature of Garnet from the Liwu Group, Western Sichuan, China[J]. Multipurpose Utilization of Mineral Resources, 2024, 45(1): 15-26. doi: 10.3969/j.issn.1000-6532.2024.01.003

Mineral Chemical Characteristics and Constraint on Metamorphic Temperature of Garnet from the Liwu Group, Western Sichuan, China

1.
College of Earth Sciences, Chengdu University of Technology, Chengdu 610059, Sichuan, China
2.
Institute of Multipurpose Utilization of Mineral Resources, Chinese Academy of Geological Sciences, Technology Innovation Center of Rare Earth Resources Development and Utilization, China Geological Survey, Chengdu 610041, Sichuan, China
3.
Sichuan Geological and Mineral Resources Group Co., Ltd, Chengdu 610016, Sichuan, China

More Information

Corresponding author: TAN Hongqi, hongqitan@163.com

Received Date: 03 April 2023

Publish Date: 25 February 2024

Abstract

Abstract

This is an article in the field of earth sciences. To reveal the mineral chemistry characteristics and metamorphic temperature of garnet in the Liwu Group due to core of Jianglang dome, the major, trace and rare earth elements of garnet were analyzed at different locations in this paper. The results show that the major-element composition of garnet in schist from the Jianglang dome is mainly Alm. ICP-MS (average content 85.82%) and LA-ICP-MS (average content 83.51%) is basically consistent within the error range of the Alm content obtained.The total content of rare earth elements (REE) is high, and show obvious LREE-depleted and HREE-enriched left-declined REE distribution patterns, with unobvious Eu anomalies and negative Ce anomalies, Enriched in large ionic strength elements (U, Ta, Hf)and depleted high field lithophile elements (K, Sr, Ba). In addition, the formation temperature of garnet in schist from the Jianglang dome is 512～583 ℃, and the formed metamorphic pressure is relatively low. It is a negative correlation between the metamorphic temperature and the distance to the Xinhuoshan granite. In conclusion, the Jianglang dome experienced “Barrovian-type” metamorphism of high greenschist facies.
- Earth sciences /
- Garnet /
- Mineral chemistry /
- Liwu Group-complex /
- Jianglang dome

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References

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