Autor: |
Ping Li Wang, Haiyan Liu, Da Wei Lv, Xue Zheng, Yu Lin Lv |
Rok vydání: |
2012 |
Předmět: |
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Zdroj: |
Advanced Materials Research. :63-66 |
ISSN: |
1662-8985 |
DOI: |
10.4028/www.scientific.net/amr.524-527.63 |
Popis: |
According to stratigraphy and distribution features of the Qaidam Basin, and further the formation and migration of it’s depocenters, it is considered that the Middle-Upper Triassic were mainly sags scattered among the Qilian Mountains, the Alabasitao Mountains and the Kunlun Mountains; the Early Jurassic depocenters were located mainly in Lenghu depression and Yiliping sag at the northwest of the basin; several Middle Jurassic depocenters distributed from the northwest to the southeast of the basin along Sertengshan-Yuqia near front of the Qilian mountains; the Late Jurassic-Cretaceous depocenters moved east and south. The basin had been larger since the Middle Jurassic, and the sedimentary facies changed from semideep-deep lacustrine of the Early-Middle Jurassic to near-source variegated fluvial-lacustrine of the Late Jurassic and brownish red lakeshore of the Early Cretaceous. |
Databáze: |
OpenAIRE |
Externí odkaz: |
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