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First Records of Late Triassic Conodont Fauna and delta C-13(carb) from the Dengdengqiao Section, Dangchang County, Gansu Province, Northwestern China
Li, Hanxiao1; Wang, Miaoyan2; Zhang, Muhui1,3; Wignall, Paul B.4; Rigo, Manuel5; Chen, Yanlong6,7; Wu, Xianlang1; Ouyang, Zhumin1; Wu, Baojin1; Yi, Zhaoyang8
2021-04-05
Source PublicationJOURNAL OF EARTH SCIENCE
ISSN1674-487X
Pages11
Abstract

Based on a study of 49 conodont and 57 geochemical samples from the Upper Triassic, carbonate-dominated Dengdengqiao Formation, Qinling Basin, China, the Carnian conodonts and carbon isotope records are first reported. Two genera and four species have been identified amongst 87 conodont elements: Mosherella praebudaensis, Mo. longnanensis sp. nov., Mo. sp., and "Misikella" longidentata. The presence of Mo. praebudaensis indicates that the lower part (bed 2) of the formation is attributable to the Julian (lower Carnian) substage. A radiolarian fauna identified in a previous study belongs to the upper Carnian, but the sampling horizon is unclear. The delta C-13(carb) curve shows a similar to 1.8 parts per thousand negative excursion beginning from upper part of bed 3, but its stratigraphic location is uncertain. The Dengdengqiao Formation is clearly at least partly of Carnian age but could include younger strata. The abundant calcareous algae at the section is probably due to some transport rather than preserved in site. The unusual ecosystem with rare marine organisms may reflect long-term stressful and unfavorable conditions at Dengdengqiao.

Keywordconodonts Late Triassic Julian Qinling
DOI10.1007/s12583-021-1428-9
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[41830320] ; National Natural Science Foundation of China[45172002] ; National Natural Science Foundation of China[41661134047]
WOS Research AreaGeology
WOS SubjectGeosciences, Multidisciplinary
WOS IDWOS:000636936700001
Funding OrganizationNational Natural Science Foundation of China
PublisherCHINA UNIV GEOSCIENCES, WUHAN
Document Type期刊论文
Identifierhttp://ir.nigpas.ac.cn/handle/332004/38019
Collection中国科学院南京地质古生物研究所
Corresponding AuthorLai, Xulong
Affiliation1.China Univ Geosci, Sch Earth Sci, Wuhan 430074, Peoples R China
2.China Univ Geosci, Sch Earth Sci & Resources, Beijing 100083, Peoples R China
3.China Univ Geosci, State Key Lab Biogeol & Environm Geol, Wuhan 430078, Peoples R China
4.Univ Leeds, Sch Earth & Environm, Leeds LS2 9JT, W Yorkshire, England
5.Univ Padua, Dept Geosci, Via Gradenigo 6, I-35131 Padua, Italy
6.Northwest Univ, Shaanxi Key Lab Early Life & Environm, State Key Lab Continental Dynam, Xian 710069, Peoples R China
7.Northwest Univ, Dept Geol, Xian 710069, Peoples R China
8.Peking Univ, Sch Earth & Space Sci, Key Lab Orogen Belts & Crustal Evolut, Beijing 100871, Peoples R China
9.Wuhan Ctr Geol Survey, Wuhan 430205, Peoples R China
10.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Peoples R China
Recommended Citation
GB/T 7714
Li, Hanxiao,Wang, Miaoyan,Zhang, Muhui,et al. First Records of Late Triassic Conodont Fauna and delta C-13(carb) from the Dengdengqiao Section, Dangchang County, Gansu Province, Northwestern China[J]. JOURNAL OF EARTH SCIENCE,2021:11.
APA Li, Hanxiao.,Wang, Miaoyan.,Zhang, Muhui.,Wignall, Paul B..,Rigo, Manuel.,...&Lai, Xulong.(2021).First Records of Late Triassic Conodont Fauna and delta C-13(carb) from the Dengdengqiao Section, Dangchang County, Gansu Province, Northwestern China.JOURNAL OF EARTH SCIENCE,11.
MLA Li, Hanxiao,et al."First Records of Late Triassic Conodont Fauna and delta C-13(carb) from the Dengdengqiao Section, Dangchang County, Gansu Province, Northwestern China".JOURNAL OF EARTH SCIENCE (2021):11.
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