Eastward termination of the Solonker-Xar Moron River Suture determined by detrital zircon U-Pb isotopic dating and Permian floristics

Yuewu Sun, Mingsong Li, Wenchun Ge, Yanlong Zhang, Dejun Zhang

Research output: Contribution to journalArticle

33 Citations (Scopus)

Abstract

The Permian Solonker-Xar Moron River Suture in South Mongolia and Inner Mongolia of China represents a major tectonic boundary in Asia. The position of its eastward continuation in northeastern China has been debated for many years. In order to resolve this debate, we measured detrital zircons of the Cisuralian (Early Permian) plant fossil-bearing Hesheng Formation in the Yanbian area, Jilin Province. The detrital zircons have ages of ca. 2541-2535. Ma, 1897-1832. Ma, 458-452. Ma, and 390-280. Ma. We therefore conclude that the depositional age of the Hesheng Formation is younger than ca. 280. Ma; this is consistent with paleontologic data that indicates an Artinskian-Early Kungurian age. The presence of Neoarchean and Paleoproterozoic zircons suggests that the Hesheng Formation may have a North-China affinity; the absence of Neoproterozoic and Pan-African zircons preclude detrital sources from the Jiamusi-Mongolia Block during the Cisuralian. This, combined with the Permian floristic and stratigraphic data, provides a clue that the Solonker-Xar Moron River Suture likely extends to the Wangqing-Hunchun region, in eastern Jilin Province.

Original languageEnglish (US)
Pages (from-to)243-250
Number of pages8
JournalJournal of Asian Earth Sciences
Volume75
DOIs
StatePublished - Oct 5 2013

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floristics
Permian
zircon
river
fossil
tectonics
dating
province

All Science Journal Classification (ASJC) codes

  • Geology
  • Earth-Surface Processes

Cite this

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abstract = "The Permian Solonker-Xar Moron River Suture in South Mongolia and Inner Mongolia of China represents a major tectonic boundary in Asia. The position of its eastward continuation in northeastern China has been debated for many years. In order to resolve this debate, we measured detrital zircons of the Cisuralian (Early Permian) plant fossil-bearing Hesheng Formation in the Yanbian area, Jilin Province. The detrital zircons have ages of ca. 2541-2535. Ma, 1897-1832. Ma, 458-452. Ma, and 390-280. Ma. We therefore conclude that the depositional age of the Hesheng Formation is younger than ca. 280. Ma; this is consistent with paleontologic data that indicates an Artinskian-Early Kungurian age. The presence of Neoarchean and Paleoproterozoic zircons suggests that the Hesheng Formation may have a North-China affinity; the absence of Neoproterozoic and Pan-African zircons preclude detrital sources from the Jiamusi-Mongolia Block during the Cisuralian. This, combined with the Permian floristic and stratigraphic data, provides a clue that the Solonker-Xar Moron River Suture likely extends to the Wangqing-Hunchun region, in eastern Jilin Province.",
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Eastward termination of the Solonker-Xar Moron River Suture determined by detrital zircon U-Pb isotopic dating and Permian floristics. / Sun, Yuewu; Li, Mingsong; Ge, Wenchun; Zhang, Yanlong; Zhang, Dejun.

In: Journal of Asian Earth Sciences, Vol. 75, 05.10.2013, p. 243-250.

Research output: Contribution to journalArticle

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AU - Li, Mingsong

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AU - Zhang, Yanlong

AU - Zhang, Dejun

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AB - The Permian Solonker-Xar Moron River Suture in South Mongolia and Inner Mongolia of China represents a major tectonic boundary in Asia. The position of its eastward continuation in northeastern China has been debated for many years. In order to resolve this debate, we measured detrital zircons of the Cisuralian (Early Permian) plant fossil-bearing Hesheng Formation in the Yanbian area, Jilin Province. The detrital zircons have ages of ca. 2541-2535. Ma, 1897-1832. Ma, 458-452. Ma, and 390-280. Ma. We therefore conclude that the depositional age of the Hesheng Formation is younger than ca. 280. Ma; this is consistent with paleontologic data that indicates an Artinskian-Early Kungurian age. The presence of Neoarchean and Paleoproterozoic zircons suggests that the Hesheng Formation may have a North-China affinity; the absence of Neoproterozoic and Pan-African zircons preclude detrital sources from the Jiamusi-Mongolia Block during the Cisuralian. This, combined with the Permian floristic and stratigraphic data, provides a clue that the Solonker-Xar Moron River Suture likely extends to the Wangqing-Hunchun region, in eastern Jilin Province.

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