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| Titel |
Late Paleozoic sandstone provenances in eastern Central Asian Orogenic Belt and its tectonic implications |
| VerfasserIn |
Yongjiang Liu, Guoqing Han, Quanbo Wen, Wei Li, Linna Wu, Yingli Zhang, Chenyue Liang |
| Konferenz |
EGU General Assembly 2010
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 12 (2010) |
| Datensatznummer |
250037246
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| Zusammenfassung |
| The study area is geographically located in the northern side of Xar Moron River suture belt in the eastern Inner Mongolia and the southern Da Hingg’an Mountains and tectonically in between the Sonidzuoqi-Xilinhot-southern Xi Ujimqin suture belt and Xar Moron River suture belt. It’s a key area for the study on the collision process between the northern margin of North China Plate and the blocks to the north. The detrital zircons from Permain sandstones in Hexigten Banner(Keqi for short) and Lixi areas in the northern side of Xar Moron River suture belt have been dated by LA-ICP-MS U-Pb method. The dating results suggest that the previous Mid-Permian “Zhesi” Fm. is probably a Late Permian or even Early Triassic sedimentary sequence. The provenance of the Permian sediments in Keqi and Linxi areas is mainly from Sonidzuoqi-Xilinhot-sorthern Xi Ujimqin magma arc in the north, and partly from the northern margin of North China Plate. It is indicated that the collision between the northern margin of North China Plate and the blocks to the north had started in Late Permian when the Linxi Fm. depositing, the Permian sediments’ provenance in Linxi and Keqi area were mixed from North and South, and the final closure time was about 250Ma. |
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