气候变化领域集成服务门户(CCPortal): Distribution and Controlling Growth Factors of Ooids in Qinghai Lake, Northern Tibet Plateau, China

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DOI	10.3389/feart.2022.824453
	Distribution and Controlling Growth Factors of Ooids in Qinghai Lake, Northern Tibet Plateau, China
	Hao, Lewei; Tao, Huifei; Li, Shutong; Ma, Xiaofeng; Ji, Hongjie; Qiu, Junli
通讯作者	Hao, LW ; Tao, HF (通讯作者)，Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Petr Resources, Lanzhou, Peoples R China.
发表日期	2022
EISSN	2296-6463
卷号	10
英文摘要	Ooids are coated carbonate grains, which exist in shallow water marine and lacustrine environments. There is an ongoing debate about whether the origin of ooids is inorganic or organic. Qinghai Lake is the largest inland lake in China, and ooids are seen on the lake shore. This paper focuses on whether environmental energy has an impact on the growth and size of ooids. Through hydrochemical analysis, thin section observation, and scanning electron microscope, the carbonate coats of beach sands from Qinghai Lake were studied. The research shows that the carbonate-coated grain content from the different shores of the lake present variations. The hydrodynamics and particularly the waves seem to control the distribution of carbonate coats in the lake shore, not the hydrochemical condition. In addition, the integrity and thickness of carbonate coats from the shores with a strong hydrodynamic force are high and thick, respectively. The carbonate coats are often observed on medium-grained sands, and the maximum carbonate-coated grain occurred under the strongest waves, indicating that ooids can be produced only when hydrodynamic force and particle size are well matched. Bacteria or extracellular polymeric substances are not observed within the ooid cortices by scanning electron microscopy. So, bacteria may not be a major factor in the formation and growth of ooids, but hydrodynamic forces appear to play a great role in carbonate grain coat distribution, integrity, thickness, and ooid grain size.
关键词	CARBONATE SAND BODIES GREAT-SALT-LAKE MARINE OOIDS PRECIPITATION FLORIDA GENEVA SIZE
英文关键词	Qinghai Lake; hydrodynamics; grain size; hydrochemical condition; carbonate coats
语种	英语
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:000766332600001
来源期刊	FRONTIERS IN EARTH SCIENCE
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/253644
作者单位	[Hao, Lewei; Tao, Huifei; Li, Shutong; Ma, Xiaofeng; Qiu, Junli] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Petr Resources, Lanzhou, Peoples R China; [Ji, Hongjie] East China Univ Technol, State Key Lab Nucl Resources & Environm, Nanchang, Jiangxi, Peoples R China
推荐引用方式 GB/T 7714	Hao, Lewei,Tao, Huifei,Li, Shutong,et al. Distribution and Controlling Growth Factors of Ooids in Qinghai Lake, Northern Tibet Plateau, China[J]. 中国科学院西北生态环境资源研究院,2022,10.
APA	Hao, Lewei,Tao, Huifei,Li, Shutong,Ma, Xiaofeng,Ji, Hongjie,&Qiu, Junli.(2022).Distribution and Controlling Growth Factors of Ooids in Qinghai Lake, Northern Tibet Plateau, China.FRONTIERS IN EARTH SCIENCE,10.
MLA	Hao, Lewei,et al."Distribution and Controlling Growth Factors of Ooids in Qinghai Lake, Northern Tibet Plateau, China".FRONTIERS IN EARTH SCIENCE 10(2022).