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The Scientific World Journal
Volume 2014 (2014), Article ID 240415, 10 pages
http://dx.doi.org/10.1155/2014/240415
Research Article

Palaeoenvironment and Its Control on the Formation of Miocene Marine Source Rocks in the Qiongdongnan Basin, Northern South China Sea

1Research Institute of Unconventional Petroleum and Renewable Energy, China University of Petroleum, Qingdao 266580, China
2School of Geosciences, China University of Petroleum, Qingdao 266580, China
3State Key Laboratory of Petroleum Resource and Prospecting, China University of Petroleum, Beijing 102249, China
4China National Offshore Oil Corporation, Beijing 100027, China

Received 18 July 2014; Revised 19 August 2014; Accepted 20 August 2014; Published 21 October 2014

Academic Editor: Guochang Wang

Copyright © 2014 Wenhao Li et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The main factors of the developmental environment of marine source rocks in continental margin basins have their specificality. This realization, in return, has led to the recognition that the developmental environment and pattern of marine source rocks, especially for the source rocks in continental margin basins, are still controversial or poorly understood. Through the analysis of the trace elements and maceral data, the developmental environment of Miocene marine source rocks in the Qiongdongnan Basin is reconstructed, and the developmental patterns of the Miocene marine source rocks are established. This paper attempts to reveal the hydrocarbon potential of the Miocene marine source rocks in different environment and speculate the quality of source rocks in bathyal region of the continental slope without exploratory well. Our results highlight the palaeoenvironment and its control on the formation of Miocene marine source rocks in the Qiongdongnan Basin of the northern South China Sea and speculate the hydrocarbon potential of the source rocks in the bathyal region. This study provides a window for better understanding the main factors influencing the marine source rocks in the continental margin basins, including productivity, preservation conditions, and the input of terrestrial organic matter.