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Triassic palynostratigraphy and palynofloral provinces: evidence from southern Xizang (Tibet), China
Peng, Jungang (彭俊刚)1,2,3; Li, Jianguo (李建国)4; Slater, Sam M.3; Li, Wenben (黎文本)1; Zhu, Huaicheng (朱怀诚)5; Vajda, Vivi3
2018
Source PublicationALCHERINGA
ISSN0311-5518
Volume42Issue:1Pages:67-86
Abstract

Peng, J., Li, J., Slater, S.M., Li, W., Zhu, H. & Vajda, V. October 2017. Triassic palynostratigraphy and palynofloral provinces: evidence from southern Xizang (Tibet), China. Alcheringa 42, 67-86. ISSN 0311-5518.Palynological analysis was carried out on Middle to Upper Triassic strata from Tulong, Nyalam County, southern Xizang (Tibet), China. Well-preserved miospore (pollen and spore) assemblages and sparse acritarch occurrences were identified. We recognized four formal and one informal biozones based on stratigraphically important taxa and compositional changes through the succession, in ascending order: the Triplexisporites Interval Zone (Anisian), the Staurosaccites quadrifidus Taxon-range Zone (upper Anisian to lower Norian), the Striatella Interval Zone (lower Norian), the Craterisporites rotundus Taxon-range Zone (middle to upper Norian) and the informal Dictyophyllidites harrisii zone' (Rhaetian). The zonation was supported by marine fossils (e.g., ammonoids and conodonts), and compositional similarity between the zones was examined using non-metric multidimensional scaling (NMDS). Correlation with other representative palynological sequences across Gondwana was also conducted. The presence of miospore taxa not previously recovered from the Late Triassic North and South China palynofloral provinces (e.g., Ashmoripollis reducta, Craterisporites rotundus, Enzonalasporites vigens, Minutosaccus crenulatus, Samaropollenites speciosus and Staurosaccites quadrifidus) calls for a new province in southwestern China, i.e., the Southern Xizang Province. It is proposed here that the modern expression of the northern boundary runs along the Yarlung Zangbo Suture, the remnant of the Tethys that separated the Indian Plate (southern Xizang) and the Lhasa Block during the Late Triassic. This new palynofloral province comprises typical elements of the Onslow Microflora, indicating the need for an extension of this microflora in southern Xizang, China.Jungang Peng [jgpeng@nigpas.ac.cn], Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing 210008, China, University of Chinese Academy of Sciences, Beijing 100049, China, Department of Palaeobiology, Swedish Museum of Natural History, Stockholm 104 05, Sweden; Jianguo Li* [jgli@nigpas.ac.cn], Key Laboratory of Economic Stratigraphy and Palaeogeography, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing 210008, China; Wenben Li [wenbenli@126.com], Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing 210008, China; Sam M. Slater [sam.slater@nrm.se], Vivi Vajda [vivi.vajda@nrm.se], Department of Palaeobiology, Swedish Museum of Natural History, Stockholm 104 05, Sweden; Huaicheng Zhu [hczhu@nigpas.ac.cn], State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing 210008, China.

KeywordPollen And Spores Phytogeography Tulong Southern Xizang Palynofloral Province Onslow Microflora Gondwana Non-metric Multidimensional Scaling (Nmds)
DOI10.1080/03115518.2017.1370726
Language英语
WOS KeywordCentral Transantarctic Mountains ; Mass-extinction ; Junggar Basin ; Boundary ; Stratigraphy ; Assemblages ; Antarctica ; Palynology ; Classification ; Mississippi
Funding ProjectChinese Academy of Sciences[XDB03010103] ; UNESCO[IGCP 632] ; Swedish Research Council[VR 2015-04264] ; China Scholarship Council[201504910609]
WOS Research AreaPaleontology
WOS SubjectPaleontology
WOS IDWOS:000425669600005
Funding OrganizationChinese Academy of Sciences ; UNESCO ; Swedish Research Council ; China Scholarship Council
PublisherTAYLOR & FRANCIS LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.nigpas.ac.cn/handle/332004/18784
Collection中国科学院南京地质古生物研究所
其他
Corresponding AuthorPeng, Jungang (彭俊刚)
Affiliation1.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, Nanjing 210008, Jiangsu, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Swedish Museum Nat Hist, Dept Palaeobiol, S-10405 Stockholm, Sweden
4.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, Key Lab Econ Stratig & Palaeogeog, Nanjing 210008, Jiangsu, Peoples R China
5.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Jiangsu, 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
Peng, Jungang ,Li, Jianguo ,Slater, Sam M.,et al. Triassic palynostratigraphy and palynofloral provinces: evidence from southern Xizang (Tibet), China[J]. ALCHERINGA,2018,42(1):67-86.
APA Peng, Jungang ,Li, Jianguo ,Slater, Sam M.,Li, Wenben ,Zhu, Huaicheng ,&Vajda, Vivi.(2018).Triassic palynostratigraphy and palynofloral provinces: evidence from southern Xizang (Tibet), China.ALCHERINGA,42(1),67-86.
MLA Peng, Jungang ,et al."Triassic palynostratigraphy and palynofloral provinces: evidence from southern Xizang (Tibet), China".ALCHERINGA 42.1(2018):67-86.
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