Provenance analysis of the Late Triassic Yichuan Basin: constraints from zircon U-Pb geochronology

Abstract: Laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) U-Pb dating has been performed on detrital zircons from the Chunshuyao Formation sandstone of Yichuan Basin. The ages of 85 detrital zircon grains are divided into three groups: 252-290 Ma, 1740-2000 Ma, and 2400-2600 Ma. The lack of Early Paleozoic and Neoproterozoic U-Pb ages indicates that there is no input from the Qinling Orogen, because the Qinling Orogen is characterized by Paleozoic and Neoproterozoic material. In combination with previous research, we suggest that the source of the Chunshuyao Formation is most likely recycled from previous sedimentary rocks from the North China Craton. In the Late Triassic, the Funiu ancient land was uplifted which prevented source material from the Qinling Orogen. Owing to the Indosinian orogeny, the strata to the east of the North China Craton were uplifted and eroded. The Yichuan Basin received detrital material from the North China Craton.

Standort
Deutsche Nationalbibliothek Frankfurt am Main
Umfang
Online-Ressource
Sprache
Englisch

Erschienen in
Provenance analysis of the Late Triassic Yichuan Basin: constraints from zircon U-Pb geochronology ; volume:10 ; number:1 ; year:2018 ; pages:34-44 ; extent:11
Open Geosciences ; 10, Heft 1 (2018), 34-44 (gesamt 11)

Urheber
Meng, Xianghong
Zhang, Yu
Wang, Duoyun
Zhang, Xue

DOI
10.1515/geo-2018-0003
URN
urn:nbn:de:101:1-2501051644145.162515918363
Rechteinformation
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
Letzte Aktualisierung
15.08.2025, 07:38 MESZ

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Beteiligte

  • Meng, Xianghong
  • Zhang, Yu
  • Wang, Duoyun
  • Zhang, Xue

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