干旱区生态环境知识资源中心(Arid): Deposition models for the widespread Eocene bedded halite in China and their implications for hydrocarbon potential of salt-associated mudstones

Arid

DOI	10.1016/j.marpetgeo.2021.105132
	Deposition models for the widespread Eocene bedded halite in China and their implications for hydrocarbon potential of salt-associated mudstones
	Li, Changzhi; Guo, Pei; Liu, Chiyang
通讯作者	Guo, P (corresponding author), Chengdu Univ Technol, State Key Lab Oil & Gas Reservoir Geol & Exploita, Chengdu 610059, Sichuan, Peoples R China.
来源期刊	MARINE AND PETROLEUM GEOLOGY
ISSN	0264-8172
EISSN	1873-4073
出版年	2021
卷号	130
英文摘要	A group of Eocene saline lakes were developed in the middle latitudinal arid zone across East Asia. In these lakes, bedded halite and laminated mudstones were alternately deposited in lake centers, leading to a long-standing controversy about their depositional water conditions. Here we selected three representative Eocene saline lakes, spanning east to west over China, and made comparisons of their minerology and minor element abundances. Minor elements of solid halite can reflect the relative abundances of impurities: quartz (Zr, Hf), K-silicates (Rb, Th, Cs, Pb, Zn), clays (Co, Cr, V, Ni, Li), carbonates (Sc, Cu, Sr), sulphates (U, Ba), and organic matter (Mo, Cu, V, Ni), and thus can indicate depositional environments. Halite in the east Dongpu Depression is mainly composed of chevron crystals and comparatively enriched in most elements. Halite in the central Qianjiang Depression mainly consists of tightly-cemented coarsely-crystalline mosaics and is depleted in most elements, except for elements Cu, V, and Ni. Whereas halite in the west Mangya Depression underwent syndepositional and burial recrystallization, and contains moderate abundances of most minor elements, with significant enrichments in elements Sc, Cu, and V. Saline lakes in the three depressions represent three typical continental settings for bedded halite deposition: a stratified shallow-water lake in the Dongpu Depression, a stratified deep-water lake in the Qianjiang Depression, and a mixed shallow-water lake in the Mangya Depression. These depositional models provide implications about the hydrocarbon exploration potential of salt-associated mudstones: highest in the stratified deep-water lakes, medium in the stratified shallow-water lakes and lowest in the mixed shallowwater lakes.
英文关键词	Saline lakes Chevron halite Mosaic halite Minor elements Brine stratification
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000661870500003
WOS关键词	BOHAI BAY BASIN ; RARE-EARTH-ELEMENTS ; TRACE-ELEMENTS ; JIANGHAN BASIN ; DONGPU DEPRESSION ; QAIDAM BASIN ; MAMFE BASIN ; DEAD-SEA ; SHALE ; SEDIMENTS
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/351115
作者单位	[Li, Changzhi; Guo, Pei] Chengdu Univ Technol, State Key Lab Oil & Gas Reservoir Geol & Exploita, Chengdu 610059, Sichuan, Peoples R China; [Liu, Chiyang] Northwest Univ, Dept Geol, State Key Lab Continental Dynam, Xian 710069, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Li, Changzhi,Guo, Pei,Liu, Chiyang. Deposition models for the widespread Eocene bedded halite in China and their implications for hydrocarbon potential of salt-associated mudstones[J],2021,130.
APA	Li, Changzhi,Guo, Pei,&Liu, Chiyang.(2021).Deposition models for the widespread Eocene bedded halite in China and their implications for hydrocarbon potential of salt-associated mudstones.MARINE AND PETROLEUM GEOLOGY,130.
MLA	Li, Changzhi,et al."Deposition models for the widespread Eocene bedded halite in China and their implications for hydrocarbon potential of salt-associated mudstones".MARINE AND PETROLEUM GEOLOGY 130(2021).