Fluid tracing and evolution at micron-scale of shales in faulted lake basin: Evidence and constraints from in-situ analysis of analcime

doi:10.1016/j.marpetgeo.2024.106776

	Fluid tracing and evolution at micron-scale of shales in faulted lake basin: Evidence and constraints from in-situ analysis of analcime
	Wang, Junran 1,2; Liang, Chao 1,2,3; Cao, Yingchang 1,2,3; Song, Shunyao 6; Liu, Keyu 1,2; Yang, Shengyu 1,2; Tian, Jinqiang 1,2; Khan, Danish 4,5; Xin, Bixiao 7
	2024-05-01
发表期刊	MARINE AND PETROLEUM GEOLOGY
ISSN	0264-8172
卷号	163 页码:16
通讯作者	Liang, Chao([email protected])
摘要	The Huanghua Depression in the Bohai Bay Basin has experienced significant development of massive NNE-NE faults, influenced by the Eocene activation of the Lanliao Fault and its subsequent Oligocene dextral intensification. These faults serve as a conduit for connate fluid and magmatic hydrothermal fluid (MHF), thereby forming a complex fluid system. Gaining an understanding of these fluid activities is essential for research into mass balance and hydrocarbon migration within shales. This study explores the origin and distribution of analcime, aligns the fluid evolution stage with different analcime types, and constructs a comprehensive waterrock reaction sequence. The study identifies six types of analcime based on occurrence characteristics (occurring as laminae, lens, fracture filling, bioshell filling, vein marginal crystal and cement). The above six types of analcime is further classified into hydrothermal fluid origin analcime (HFOA: include analcime cement, vein marginal crystal, lens, fracture filling and bioshell filling) and connate fluid origin analcime (CFOA: analcime laminae) based on major elemental indicators (Si/Al and 10K/(10K + Na)). HFOA has lower EREE (rare earth element) and strong positive correlation between EREE and LILEs (large ionic lithophilic elements); while CFOA has higher EREE and weak positive correlation between EREE and LILEs. Different analcime types correlate with varying fluid properties and transport stages. HFOA forms during MHF upwelling. After the MHF entering and mixing with the lake water, thermal repulsions between the crystal particles made it move to form finegrained sedimentary layer, the connate fluid trapped in pores directly precipitate to form CFOA, or form CFOA by modifying clay minerals and feldspars. Considering the tectonic context, we infer that the formation of analcime was primarily driven by high-frequency, low-intensity magmatism, governed by the activation of Lanliao deep fault. The study of analcime can aid in identifying and classifying fluid activity processes, offering a novel perspective for investigating sedimentation and diagenesis in continental shales.
关键词	Fluid tracing and evolution Analcime Faulted lake basin Lacustrine shales Bohai bay basin
DOI	10.1016/j.marpetgeo.2024.106776
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[42072164]; National Natural Science Foundation of China[41821002]; Shandong Provincial Key Research and Development Program, China[2020ZLYS08]; Fundamental Research Funds for the Central Universities, China[2022CX06001A]; Taishan Scholars Program, China[TSQN201812030]
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:001258468800001
出版者	ELSEVIER SCI LTD
WOS关键词	BOHAI BAY BASIN ; EARTH-ELEMENT GEOCHEMISTRY ; GREEN RIVER FORMATION ; CANGDONG SAG ; KONGDIAN FORMATION ; HYDROCARBON MIGRATION ; EASTERN CHINA ; 2ND MEMBER ; SEDIMENTARY ; PETROLEUM
引用统计	被引频次：1[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/186447
专题	深海极端环境与生命过程研究中心
通讯作者	Liang, Chao
作者单位	1.China Univ Petr East China, Natl Key Lab Deep Oil & Gas, Qingdao 266580, Peoples R China 2.China Univ Petr, Sch Geosci, Qingdao 266000, Peoples R China 3.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Mineral Resource, Qingdao 266071, Peoples R China 4.Chinese Acad Sci, State Key Lab Ore Deposit Geochem, Inst Geochem, Guiyang 550002, Peoples R China 5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 6.PetroChina Dagang Oil field Co, Tianjin 300280, Peoples R China 7.Chinese Acad Sci, Ctr Deep Sea Res, Inst Oceanol, Qingdao 266071, Peoples R China
推荐引用方式 GB/T 7714	Wang, Junran,Liang, Chao,Cao, Yingchang,et al. Fluid tracing and evolution at micron-scale of shales in faulted lake basin: Evidence and constraints from in-situ analysis of analcime[J]. MARINE AND PETROLEUM GEOLOGY,2024,163:16.
APA	Wang, Junran.,Liang, Chao.,Cao, Yingchang.,Song, Shunyao.,Liu, Keyu.,...&Xin, Bixiao.(2024).Fluid tracing and evolution at micron-scale of shales in faulted lake basin: Evidence and constraints from in-situ analysis of analcime.MARINE AND PETROLEUM GEOLOGY,163,16.
MLA	Wang, Junran,et al."Fluid tracing and evolution at micron-scale of shales in faulted lake basin: Evidence and constraints from in-situ analysis of analcime".MARINE AND PETROLEUM GEOLOGY 163(2024):16.