Provenance Analysis of the Pliocene Central Canyon in Qiongdongnan Basin and Its Implications
doi: 10.14027/j.cnki.cjxb.2015.04.004
- Received Date: 2014-06-06
- Rev Recd Date: 2014-10-20
- Publish Date: 2015-08-10
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Key words:
- Qiongdongnan Basin /
- Central Canyon /
- Red River /
- Eu positive anomalies /
- zircon age
Abstract: The Central Canyon is one of the most important sedimentary body in the northwestern part of South China Sea. The provenance problem has always been the focus of the research, and has no uniform understanding. In order to solve the problem, the heavy minerals, rare earth elements and zircon age are used to analyze provenance, by comparing with the sediment of potential provenance and discusses the significance of the research. The results show that: (1) the Red River is the main provenance to the Central Canyon and take the leading role in the formation of the Central Canyon; (2) The Red River drainage had been changed significantly in the history of its evolution. Such changes may occurs in a period of 3.6 Ma to now; (3) The Central Canyon derived from the red river, and formed large reservoirs in the central sag belt of Qiongdongnan Basin. It laid the material foundation for the oil and gas exploration target in deep water.
| Citation: | LI Dong, XU Qiang, WANG YongFeng. Provenance Analysis of the Pliocene Central Canyon in Qiongdongnan Basin and Its Implications[J]. Acta Sedimentologica Sinica, 2015, 33(4): 659-664. doi: 10.14027/j.cnki.cjxb.2015.04.004
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