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Open AccessArticle
Genesis of Analcite in Black Shales and Its Indication for Hydrocarbon Enrichment—A Case Study of the Permian Pingdiquan Formation in the Junggar Basin, Xinjiang, China
by
Yang Bai
Yang Bai 1,
Xin Jiao
Xin Jiao 1,*
,
Yiqun Liu
Yiqun Liu 1,
Xu Li
Xu Li 2,
Xu Zhang
Xu Zhang 1 and
Zhexuan Li
Zhexuan Li 1
1
State Key Laboratory of Continental Dynamics, Department of Geology, Northwest University, Xi’an 710069, China
2
Shaanxi Provincial Institute of Land and Resources Planning, Xi’an 710082, China
*
Author to whom correspondence should be addressed.
Minerals 2024, 14(8), 810; https://doi.org/10.3390/min14080810 (registering DOI)
Submission received: 28 June 2024
/
Revised: 28 July 2024
/
Accepted: 5 August 2024
/
Published: 10 August 2024
Abstract
This study investigates the genesis of analcite in black shale from continental lakes and its implications for hydrocarbon enrichment, with a case study of the Permian Pingdiquan Formation in the Junggar Basin, Xinjiang, China. As an alkaline mineral, analcite is extensively developed in China’s lacustrine black shale hydrocarbon source rocks and is linked to hydrocarbon distribution. However, the mechanisms of its formation and its impact on hydrocarbon generation and accumulation remain insufficiently understood. This paper employs a multi-analytical approach, including petrological observations, geochemical analysis, and X-ray diffraction, to characterize analcite and its association with hydrocarbon source rocks. The study identifies a hydrothermal sedimentary origin for analcite, suggesting that it forms under conditions of alkaline lake water and volcanic activity, which are conducive to organic matter enrichment. The analcite content in the studied samples exhibits a significant variation, with higher contents associated with hydrocarbon accumulation zones, suggesting its role in hydrocarbon generation and accumulation. This paper reports that analcite-bearing rocks display characteristics of high-quality reservoirs, enhancing the permeability and porosity of the rock, which is essential for hydrocarbon storage and migration. In conclusion, this paper underscores the importance of analcite as a key mineral indicator for hydrocarbon potential in black shale formations and provides valuable insights for further geological and hydrocarbon exploration in similar settings.
Share and Cite
MDPI and ACS Style
Bai, Y.; Jiao, X.; Liu, Y.; Li, X.; Zhang, X.; Li, Z.
Genesis of Analcite in Black Shales and Its Indication for Hydrocarbon Enrichment—A Case Study of the Permian Pingdiquan Formation in the Junggar Basin, Xinjiang, China. Minerals 2024, 14, 810.
https://doi.org/10.3390/min14080810
AMA Style
Bai Y, Jiao X, Liu Y, Li X, Zhang X, Li Z.
Genesis of Analcite in Black Shales and Its Indication for Hydrocarbon Enrichment—A Case Study of the Permian Pingdiquan Formation in the Junggar Basin, Xinjiang, China. Minerals. 2024; 14(8):810.
https://doi.org/10.3390/min14080810
Chicago/Turabian Style
Bai, Yang, Xin Jiao, Yiqun Liu, Xu Li, Xu Zhang, and Zhexuan Li.
2024. "Genesis of Analcite in Black Shales and Its Indication for Hydrocarbon Enrichment—A Case Study of the Permian Pingdiquan Formation in the Junggar Basin, Xinjiang, China" Minerals 14, no. 8: 810.
https://doi.org/10.3390/min14080810
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