An 800 million-year detrital zircon record of continental amalgamation: Tarim basin, NW China
| Autor: | Trevor A. Dumitru, Marc S. Hendrix, Stephan A. Graham, Alan R. Carroll |
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| Rok vydání: | 2013 |
| Předmět: | |
| Zdroj: | International Geology Review. 55:818-829 |
| ISSN: | 1938-2839 0020-6814 |
| DOI: | 10.1080/00206814.2013.787232 |
| Popis: | Sedimentary provenance studies based on detrital zircon ages have proved to be a powerful tool for elucidating detailed patterns of erosion and sediment dispersal on and adjacent to the continents. This approach is commonly used to examine processes that occur over discrete intervals of geologic time, but it can also be used to address fundamental questions concerning the longer-term evolution of the continental crust. Central Asia, for example, consists of a Palaeozoic accretionary collage that contrasts with the cratonal cores of continents such as North America, which were fully consolidated during the Proterozoic. Detrital zircon provenance may thus provide important insights on the comparative evolution of these distinctly different styles of continental growth. The Tarim sedimentary basin is interpreted to be underlain by a micro-continental block that accreted to central Asia during the late Palaeozoic. Detrital zircon in pre-Permian strata of the northern Tarim basin includes Precambrian grains de... |
| Databáze: | OpenAIRE |
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