Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Triassic palynostratigraphy and palynofloral provinces: evidence from southern Xizang (Tibet), China
Swedish Museum of Natural History, Department of Paleobiology.
Key Laboratory of Economic Stratigraphy and Palaeogeography, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing 210008, China.
Swedish Museum of Natural History, Department of Paleobiology.
Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing 210008, China.
Show others and affiliations
2018 (English)In: Alcheringa, ISSN 0311-5518, E-ISSN 1752-0754, Vol. 42, p. 67-86Article in journal (Refereed) Published
Abstract [en]

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.

Place, publisher, year, edition, pages
Melbourne: Taylor & Francis, 2018. Vol. 42, p. 67-86
Keywords [en]
pollen and spores, phytogeography, Tulong, Southern Xizang Palynofloral Province, Onslow Microflora, Gondwana, non-metric multidimensional scaling
National Category
Other Earth and Related Environmental Sciences
Identifiers
URN: urn:nbn:se:nrm:diva-3234DOI: 10.1080/03115518.2017.1370726OAI: oai:DiVA.org:nrm-3234DiVA, id: diva2:1276101
Funder
Swedish Research Council, 2015-04264
Note

This work was made possible by the support of the Strategic Priority Research Program (B) of the Chinese Academy of Sciences (XDB03010103), UNESCO grant IGCP 632, the Swedish Research Council, grant VR 2015-04264 and the China Scholarship Council (201504910609).

Available from: 2019-01-01 Created: 2019-01-07 Last updated: 2019-01-08Bibliographically approved

Open Access in DiVA

fulltext(2913 kB)15 downloads
File information
File name FULLTEXT01.pdfFile size 2913 kBChecksum SHA-512
e82fff7b17b5e75144bd7594130faef3c664af32c16903524e5a2861dbf37dc7decd402b117b810c1e9b6e2726f5629aeb10ae72a15e1966c3f401f1eeb071e6
Type fulltextMimetype application/pdf

Other links

Publisher's full texthttps://doi.org/10.1080/03115518.2017.1370726

Search in DiVA

By author/editor
Slater, Sam MVajda, Vivi
By organisation
Department of Paleobiology
In the same journal
Alcheringa
Other Earth and Related Environmental Sciences

Search outside of DiVA

GoogleGoogle Scholar
Total: 15 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 15 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf