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New Ediacara-type fossils and late Ediacaran stratigraphy from the northern Qaidam Basin (China): Paleogeographic implications
Pang, Ke(庞科)1,2,3; Wu, Chengxi(吴承羲)1,2,3; Sun, Yunpeng(孙云鹏)1,2,4; Ouyang, Qing(欧阳晴)1,2,3; Yuan, Xunlai(袁训来)1,2,3; Shen, Bing5,6; Lang, Xianguo7,8; Wang, Ruimin5,6; Chen, Zhe(陈哲)1,2,3; Zhou, Chuanming(周传明)1,2,3
2021-10-01
Source PublicationGEOLOGY
ISSN0091-7613
Volume49Issue:10Pages:1160-1164
Abstract

Ediacara-type macrofossils characterize the late Ediacaran Period and are pivotal in understanding the early evolution of animals on the eve of the Cambrian explosion and useful in late Ediacaran biostratigraphy. They have been discovered on almost all major paleocontinents, except the North China and Tarim blocks, as well as on a series of northwestwest-oriented cratonic fragments between the two blocks, including the Olongbuluke terrane of the Qaidam block, where the terminal Ediacaran successions developed. We report a newly discovered terminal Ediacaran biotic assemblage, the Quanjishan assemblage, containing Ediacara-type fossils from the Zhoujieshan Formation of the Quanji Group in the Olongbuluke terrane, Qaidam Basin, northwestern China. The Quanjishan assemblage is dominated by the non-biomineralized tubular taxon Shaanxilithes, which has the potential to be a terminal Ediacaran index fossil, and by the iconic frondose rangeomorph Charnia, which represents the only unambiguous Ediacara-type fossil discovered in northwestern China. The co-occurrence of Charnia and Shaanxilithes from the Quanjishan assemblage likely constrains the depositional age of the Zhoujieshan Formation to be terminal Ediacaran (ca. 550-539 Ma) and the immediately underlying Hongtiegou diamictites to be late Ediacaran, probably representing post-Gaskiers glacial deposition. The occurrence of post-Gaskiers Ediacaran glaciation and similarities between the late Ediacaran - early Paleozoic lithostratigraphic and biostratigraphic sequences in the Olongbuluke terrane of the Qaidam block and the North China block suggest that these two blocks may have been located close to each other during this time period, and situated in the middle to high latitudes instead of the equatorial region.

DOI10.1130/G48842.1
Indexed BySCI
Language英语
WOS KeywordGLACIATION ; TAPHONOMY ; RODINIA ; BREAKUP ; BLOCKS
Funding ProjectSecond Tibetan Plateau Scientific Expedition and Research[2019QZKK0706] ; Chinese Academy of Sciences (CAS)[XDB18000000] ; Chinese Academy of Sciences (CAS)[XDB26000000] ; Chinese Academy of Sciences (CAS)[QYZDJ-SSW-DQC009] ; National Natural Science Foundation of China[41921002] ; National Key Research and Development Program of China[2017YFC0603100] ; Youth Innovation Promotion Association of the CAS[2021307]
WOS Research AreaGeology
WOS SubjectGeology
WOS IDWOS:000705084600002
Funding OrganizationSecond Tibetan Plateau Scientific Expedition and Research ; Chinese Academy of Sciences (CAS) ; National Natural Science Foundation of China ; National Key Research and Development Program of China ; Youth Innovation Promotion Association of the CAS
PublisherGEOLOGICAL SOC AMER, INC
Document Type期刊论文
Identifierhttp://ir.nigpas.ac.cn/handle/332004/39952
Collection中国科学院南京地质古生物研究所
Corresponding AuthorPang, Ke(庞科); Chen, Zhe(陈哲); Zhou, Chuanming(周传明)
Affiliation1.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Peoples R China
2.Chinese Acad Sci, Ctr Excellence Life & Paleoenvironm, Nanjing 210008, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Univ Sci & Technol China, Hefei 230026, Peoples R China
5.Peking Univ, Key Lab Orogen Belts & Crustal Evolut, Minist Educ, Beijing 100871, Peoples R China
6.Peking Univ, Sch Earth & Space Sci, Beijing 100871, Peoples R China
7.Chengdu Univ Technol, State Key Lab Oil & Gas Reservoir Geol & Exploita, Chengdu 610059, Peoples R China
8.Chengdu Univ Technol, Inst Sedimentary Geol, Chengdu 610059, 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
Pang, Ke,Wu, Chengxi,Sun, Yunpeng,et al. New Ediacara-type fossils and late Ediacaran stratigraphy from the northern Qaidam Basin (China): Paleogeographic implications[J]. GEOLOGY,2021,49(10):1160-1164.
APA Pang, Ke.,Wu, Chengxi.,Sun, Yunpeng.,Ouyang, Qing.,Yuan, Xunlai.,...&Zhou, Chuanming.(2021).New Ediacara-type fossils and late Ediacaran stratigraphy from the northern Qaidam Basin (China): Paleogeographic implications.GEOLOGY,49(10),1160-1164.
MLA Pang, Ke,et al."New Ediacara-type fossils and late Ediacaran stratigraphy from the northern Qaidam Basin (China): Paleogeographic implications".GEOLOGY 49.10(2021):1160-1164.
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