scholarly journals The main controlling factors and developmental models of Oligocene source rocks in the Qiongdongnan Basin, northern South China Sea

2013 ◽  
Vol 10 (2) ◽  
pp. 161-170 ◽  
Author(s):  
Wenhao Li ◽  
Zhihuan Zhang ◽  
Youchuan Li ◽  
Chao Liu ◽  
Ning Fu
Keyword(s):  
South China Sea ◽  
South China ◽  
Northern South China Sea ◽  
Controlling Factors ◽  
Qiongdongnan Basin ◽  
Source Rocks ◽  
Developmental Models ◽  
China Sea ◽  
Main Controlling Factors

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

2014 ◽  
Vol 2014 ◽  
pp. 1-10 ◽  
Author(s):  
Wenhao Li ◽  
Zhihuan Zhang ◽  
Weiming Wang ◽  
Shuangfang Lu ◽  
Youchuan Li ◽  
...  
Keyword(s):  
South China Sea ◽  
Continental Margin ◽  
South China ◽  
Northern South China Sea ◽  
Qiongdongnan Basin ◽  
Source Rocks ◽  
Hydrocarbon Potential ◽  
China Sea ◽  
Marine Source ◽  
Main Factors

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.

scholarly journals Characterization and formation mechanism of the basin-marginal deltas in the Paleogene Qiongdongnan Basin, Northwestern South China Sea

2020 ◽  
Vol 38 (4) ◽  
pp. 923-943
Author(s):  
Guangzeng Song ◽  
Gongcheng Zhang ◽  
Zengxue Li ◽  
Dongdong Wang ◽  
Meng Xu
Keyword(s):  
South China Sea ◽  
South China ◽  
Controlling Factors ◽  
Qiongdongnan Basin ◽  
Source Rocks ◽  
Braided River ◽  
Third Order ◽  
China Sea ◽  
River Deltas ◽  
System Tracts

In this study, based on seismic profiles, complemented with boreholes and well logs, two types of deltas are recognized in the Paleogene Qiongdongnan Basin, namely fan deltas and braided river deltas, and their temporal–spatial evolution characteristics and associated controlling factors are studied. The results show the following: (1) The base-level cycle and episodic rifting lead that the characteristics of the basin-marginal deltas vary among different system tracts, third-order sequences, and second-order sequences or rifting stages, i.e. the temporal evolution of the basin-marginal deltas. Among the different system tracts in each third-order sequences, the deltas in the lowstand system tracts are vertically thick with small horizontal extension, while those in the transgressive system tracts present retrogradation with limited vertical thickness and horizontal extension, and those in the highstand system tracts turn to present large extension and develop toplap points. Among the different third-order sequences in each rifting stage, the extension of the deltas presents a pattern “small-medium-large” from bottom to top. Among different rifting stages, the deltas also exhibit different characteristics in terms of extension and thickness, and even the type may change. (2) The paleogeomorphology controls the characteristics of the deltas in lateral space, which is mainly reflected by the fact that the gradient of the paleogeomorphology influences the scale and type of the deltas. This study will enhance our understanding of the relative influence of the controlling factors exerted on fan or braided river deltas, and aid in the exploration of the coal-measure source rocks in the Qiongdongnan Basin, which is a typical basin lacking boreholes, located in the South China Sea.

Architecture and controlling factors of canyon fills on the shelf margin in the Qiongdongnan Basin, northern South China Sea

2013 ◽  
Vol 41 ◽  
pp. 264-276 ◽  
Author(s):  
Yunlong He ◽  
Xinong Xie ◽  
Benjamin C. Kneller ◽  
Zhenfeng Wang ◽  
Xushen Li
Keyword(s):  
South China Sea ◽  
South China ◽  
Northern South China Sea ◽  
Controlling Factors ◽  
Qiongdongnan Basin ◽  
China Sea ◽  
Shelf Margin

Seismic Recognition and Origin of Miocene Meishan Formation Contourite Deposits in the Southern Qiongdongnan Basin, Northern South China Sea

2021 ◽  
Vol 95 (1) ◽  
pp. 131-141
Author(s):  
Yangwei FENG ◽  
Yan REN ◽  
Chengfu LYU ◽  
Peng ZHANG ◽  
Ying CHEN ◽  
...  
Keyword(s):  
South China Sea ◽  
South China ◽  
Northern South China Sea ◽  
Qiongdongnan Basin ◽  
China Sea
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