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	Organic matter binding detrital grains contributing to ooid formation and small shelly fossil preservation, a case from the middle Cambrian, southern North China
通讯作者	Zhang, Zhifei([email protected])
	Hu, Yazhou1,2; Topper, Timothy P.1,2; Zhou, Junming1,3; Wang, Zhao; Pan, Bing4; Liang, Yue1; Liu, Fan1; Zhang, Zhifei1
	2024-10-01
发表期刊	SEDIMENTARY GEOLOGY
ISSN	0037-0738
卷号	472页码:11
摘要	Siliciclastic grains, characterized by concentrated Al, Si, K and other elements, are typical components of ooids, but their distribution and contribution to ooid formation are uncertain. Coatings have played a significant role in small shelly fossil preservation in early Cambrian phosphate or phosphatic carbonates. However, the relationship between ooid construction and the preservation of small shelly fossils has not been fully elucidated. Herein, we report welldeveloped flaggy ooids containing siliciclastic grains from a middle Cambrian carbonate-siliciclastic depositional system in North China. We observe that ooids consist of multiple layers of dark and light laminae. The dark laminae with a high organic content and flexible appearance are interpreted as biofilms. The distribution of detrital grains is closely coupled with these dark laminae and the filamentous structures around fossil shells, which indicates that the detrital particles are bound by the biofilms or filamentous structures. The high occurrence and compacted nature of siliciclastic particles observed in these ooids reveal that detrital grains could be the main contributing factor in ooid formation in the middle Cambrian Longwanggou section. Those flaggy ooids composed of clay-size detrital grains finely mimic the shell morphology and microstructure, providing another important window for the preservation of small shelly fossils in the Cambrian. (c) 2024 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY license (http:// creativecommons.org/licenses/by/4.0/).
关键词	Detrital grains Ooids Small shelly fossils Biofilms
DOI	10.1016/j.sedgeo.2024.106740
收录类别	SCI
语种	英语
关键词[WOS]	CARBONATE OOIDS ; ORIGIN ; MICROBES ; PLATFORM ; CRATON
资助项目	National Key Research and Development Program of China[2023YFF0803601] ; National Natural Science Foundation of China[NSFC 42302009] ; National Natural Science Foundation of China[42072003] ; Shaanxi Province Postdoctoral Research Project ; China Scholarship Council[202306970031] ; Department of Science and Technology of Shaanxi Province[2022TD-11] ; Swedish Research Council[VR2017-05183] ; Swedish Research Council[VR2021-04295] ; Northwest University[D17013]
WOS研究方向	Geology
WOS类目	Geology
WOS记录号	WOS:001309879400001
项目资助者	National Key Research and Development Program of China ; National Natural Science Foundation of China ; Shaanxi Province Postdoctoral Research Project ; China Scholarship Council ; Department of Science and Technology of Shaanxi Province ; Swedish Research Council ; Northwest University
出版者	ELSEVIER
文献类型	期刊论文
条目标识符	http://ir.nigpas.ac.cn/handle/332004/44280
专题	中国科学院南京地质古生物研究所
通讯作者	Zhang, Zhifei
作者单位	1.Northwest Univ, Dept Geol, State Key Lab Continental Dynam, Shaanxi Key Lab Early Life & Environm, Xian 710069, Peoples R China 2.Swedish Museum Nat Hist, Dept Palaeobiol, Box 50007, SE-10405 Stockholm, Sweden 3.Southern Marine Sci & Engn Guangdong Lab Guangzhou, Guangzhou 511458, Peoples R China 4.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, Nanjing 210008, Peoples R China
推荐引用方式 GB/T 7714	Hu, Yazhou,Topper, Timothy P.,Zhou, Junming,et al. Organic matter binding detrital grains contributing to ooid formation and small shelly fossil preservation, a case from the middle Cambrian, southern North China[J]. SEDIMENTARY GEOLOGY,2024,472:11.
APA	Hu, Yazhou.,Topper, Timothy P..,Zhou, Junming.,Wang, Zhao.,Pan, Bing.,...&Zhang, Zhifei.(2024).Organic matter binding detrital grains contributing to ooid formation and small shelly fossil preservation, a case from the middle Cambrian, southern North China.SEDIMENTARY GEOLOGY,472,11.
MLA	Hu, Yazhou,et al."Organic matter binding detrital grains contributing to ooid formation and small shelly fossil preservation, a case from the middle Cambrian, southern North China".SEDIMENTARY GEOLOGY 472(2024):11.

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