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| Content Provider | Springer Nature Link |
|---|---|
| Author | Ji, YouLiang Zhou, Yong Kuang, Jun Wan, Lu Zhang, Rui Lu, ChunHong |
| Copyright Year | 2010 |
| Abstract | The Chepaizi-Mosuowan paleo-uplift is a large-scale uplift stretching across the Junggar Basin formed during the Yanshanian. It has experienced four evolutionary stages: the initial forming stage (J$_{1}$), the intense development stage (J$_{2+3}$), the waning and burial stage (K-E), and the tilting and extinction stage (N-Q). The most intense period of activities is the Middle Jurassic. During the Early Jurassic, the Chepaizi-Mosuowan paleo-structure was a low amplitude uplift. Because of the subsequent strong uplifting during Middle-Late Jurassic, the Middle and Upper Jurassic were eroded. With the evolution of the Chepaizi-Mosuowan paleo-uplift, the sedimentary pattern of the basin changed, and the paleo-uplift separated the northern depositional systems from those in the south side. As a result, the basin tectonics controlled the distribution and evolution of the depositional systems. During Early Jurassic, while the paleo-uplift was low, its controlling effect on depositional systems was limited and sediments coming from the northwest could reach the central and southern parts of the basin. With the strong uplifting of the Chepaizi-Mosuowan paleo-structure during Middle-Late Jurassic, sediments from the northwest provenance could only deposit in the northern graben of the paleo-uplift. The intense erosion of the Middle-Upper Jurassic also changed the former sedimentary center of the basin into a source area, supplying sediments for grabens on both sides of the paleo-uplift. In the Cretaceous, regional subsidence caused the paleo-uplift to be buried again and subsequently sediments accumulated on top of it. The depositional facies are dominated by fluvial in the Early Cretaceous and shallow lacustrine to deltaic in the Late Cretaceous. In the history of the long-lasting development of this paleo-uplift, large-scale erosions of the paleohigh not only provided sufficient sediments to the center of the Junggar Basin, but also created favorable conditions for the formation of various subtle traps such as lithologic and stratigraphic traps. |
| Starting Page | 818 |
| Ending Page | 831 |
| Page Count | 14 |
| File Format | |
| ISSN | 16747313 |
| Journal | Science in China Series D: Earth Sciences |
| Volume Number | 53 |
| Issue Number | 6 |
| e-ISSN | 18691897 |
| Language | English |
| Publisher | SP Science China Press |
| Publisher Date | 2010-05-15 |
| Publisher Place | Heidelberg |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Chepaizi-Mosuowan paleo-uplift formation and evolution depositional systems Junggar Basin Earth Sciences |
| Content Type | Text |
| Resource Type | Article |
| Subject | Earth and Planetary Sciences |
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