NIGPAS OpenIR
Environmental setting of the Cambrian Terreneuvian rocks from the southwestern Yangtze Platform, South China
Sun, Xiaojuan (孙晓娟)1,2; Heubeck, Christoph1,3; Steiner, Michael1; Yang, Ben4
2020-01-15
Source PublicationPALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
ISSN0031-0182
Volume538Pages:17
Abstract

Terreneuvian strata from the western Yangtze Platform host diverse assemblages of small shelly fossils (SSFs), which are key for understanding the Cambrian Bioradiation Event and have been the objects of numerous geochemical studies to understand environmental factors during Fortunian and Cambrian Age 2. The region has been proposed to host the vacant stratotype of Cambrian Stage 2. However, a comprehensive study of paleogeography and evolution of sedimentary facies for the Terreneuvian is still lacking. Here we present a detailed sedimentological and petrographic study of six stratigraphic sections from the western Yangtze Platform. Eleven depositional environments (fades associations) are proposed based on the characterization of twenty-five facies. We further reconstruct palaeogeographic model based on the evolution of depositional environments and discuss the formation of phosphorites. The Zhujiaqing Formation deposited diachronously on the Ediacaran strata, and facies associations range from tidal flats, shoal, back-shoal to semi-restricted and energetic subtidal. As sedimentation continued, protected shallow subtidal became widespread. Evidence presented from the Zhujiaqing Formation indicates that strata in the laolin section are more continuous than those on other parts of the Yangtze Platform. However, stratigraphic condensation and the protected and partly restricted environment should be taken into consideration when discussing a proposed global GSSP "Laolinian Stage" (Cambrian Stage 2). In-situ phosphates formed in various environments, which argues against the previous assumption that primary phosphate formed only in isolated embayments. Concentration of granular phosphorites occurred in shoal areas by winnowing and reworking of in-situ phosphate and phosphatized skeletons, while in the infra-platform basin, repeated alternations of syndepositional phosphogenesis, current reworking, and amalgamation of storm-generated phosphatic event beds contributed to the concentration of granular phosphorites.

KeywordStratigraphic condensation Carbonate platform Phosphogenesis Zhujiaqing formation Cambrian stage 2 Cambrian biomineralization
DOI10.1016/j.palaeo.2019.109424
Indexed BySCI
Language英语
WOS KeywordCARBON-ISOTOPE ; FOSSIL ASSEMBLAGES ; BOUNDARY INTERVAL ; XIAOTAN SECTION ; EDIACARAN ; EVOLUTION ; YUNNAN ; CHRONOSTRATIGRAPHY ; HISTORY ; RECORD
Funding ProjectGerman Research Foundation (DFG)[He2418/4-2] ; German Research Foundation (DFG)[FOR 736] ; National Natural Science Foundation of China[41672029]
WOS Research AreaPhysical Geography ; Geology ; Paleontology
WOS SubjectGeography, Physical ; Geosciences, Multidisciplinary ; Paleontology
WOS IDWOS:000508751800042
Funding OrganizationGerman Research Foundation (DFG) ; National Natural Science Foundation of China
PublisherELSEVIER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.nigpas.ac.cn/handle/332004/31392
Collection中国科学院南京地质古生物研究所
Corresponding AuthorSun, Xiaojuan (孙晓娟)
Affiliation1.Free Univ Berlin, Inst Geol Sci, Malteserstr 74-100, D-12249 Berlin, Germany
2.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Peoples R China
3.Univ Jena, Dept Geosci, Burgweg 11, D-07749 Jena, Germany
4.Chinese Acad Geol Sci, Inst Geol, Baiwanzhuang St 26, Beijing 100037, Peoples R China
First Author AffilicationNanjing Institute of Geology and Palaeonotology,CAS
Corresponding Author AffilicationNanjing Institute of Geology and Palaeonotology,CAS
Recommended Citation
GB/T 7714
Sun, Xiaojuan ,Heubeck, Christoph,Steiner, Michael,et al. Environmental setting of the Cambrian Terreneuvian rocks from the southwestern Yangtze Platform, South China[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2020,538:17.
APA Sun, Xiaojuan ,Heubeck, Christoph,Steiner, Michael,&Yang, Ben.(2020).Environmental setting of the Cambrian Terreneuvian rocks from the southwestern Yangtze Platform, South China.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,538,17.
MLA Sun, Xiaojuan ,et al."Environmental setting of the Cambrian Terreneuvian rocks from the southwestern Yangtze Platform, South China".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 538(2020):17.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Sun, Xiaojuan (孙晓娟)]'s Articles
[Heubeck, Christoph]'s Articles
[Steiner, Michael]'s Articles
Baidu academic
Similar articles in Baidu academic
[Sun, Xiaojuan (孙晓娟)]'s Articles
[Heubeck, Christoph]'s Articles
[Steiner, Michael]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Sun, Xiaojuan (孙晓娟)]'s Articles
[Heubeck, Christoph]'s Articles
[Steiner, Michael]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.