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| Titel |
Neoproterozoic to early Paleozoic Tectonic Evolution of Tarim Block |
| VerfasserIn |
J. H. Li, X. B. Zhou, W. S. Li, H. H. Wang |
| Konferenz |
EGU General Assembly 2012
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 14 (2012) |
| Datensatznummer |
250061277
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| Zusammenfassung |
| Tarim is one of the major cratonic blocks in the Central Asia. Despite intensive petroleum
exploration in the area, relatively little has been published about its Precambrian
reconstruction of plate tectonics. In its long geological history, the tectonic evolution of the
Tarim Block involves the assembly and the rifting and break-up of the Rodinia, Gondwana
and Laurasia, with formation of the development and superimposition of the various stages of
the basin prototypes. The Pan-Tarim Block joined Rodinia at ca. 870Ma, representing the late
collisional events of assembly of the the Rodinia. It was situated near the northwestern
margin of Australia within the Rodinia framework. An aulacogen formed on the
northeastern margin of the Tarim block followed the initial breakup and dispersal of the
Rodinia, characterized with the very extensive basaltic-rhyolitic volcanism from
ca. 800 to 700 Ma. With the block was finally rifted away from the Gondwana
in the early Cambrian, Tarim was entirely rimmed by passive margins from the
Cambrian to the Ordovician, followed by the Caledonian intracontinental convergence
that culminated at the middle Ordovician along the south edge of Tarim block. |
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