TYPES IN SOURCE ROCKS IN BAIYUN SAG, SOUTH CHINA SEA AND ITS BEARING ON SEDIMENTARY FACIES
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摘要: 通过热解、干酪根显微组分、色谱-质谱、孢粉与藻类分析,认为白云凹陷有机质来源以陆源高等植物为主。烃源岩的发育、质量与分布严格受沉积相控制,恩平组时期的三角洲平原亚相和浅海相发育以陆源高等植物贡献为主、丰度高的好烃源岩,其中,浅海相烃源岩有机质来源中,藻类贡献较三角洲平原亚相略高;珠海组时期的三角洲前缘亚相和半深海相分别发育以陆源高等植物贡献为主、丰度中等的烃源岩和陆源高等植物为主、有机质丰度低的差烃源岩。Abstract: Three source rock intervals from the Baiyun Sag are analyzed with geochemical and other techniques, such as rock pyrolysis, kerogen maceral, GC-MS as well as sporopollen and algae analysis, in order to characterize the abundance and types of organic matter. It is revealed that the organic matter mainly comes from higher terrestrial plants and the abundance of the organic matter varies widely. The types of source rocks are closely related to the sedimentary facies or the environment of deposition. The source rock with high abundance and higher plant-dominated organic matter indicates a facies of delta plain; the source rock with moderate abundance and higher plant-dominated organic matter suggests a facies of delta front; the source rock with moderate abundance and mixed organic matter of higher plant and algae indicates a facies of shallow sea, and the source rock with low abundance of organic matter dominated by higher plant indicate a facies of deep sea.
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Keywords:
- deep water area /
- source rock /
- delta plain /
- delta front /
- shallow sea /
- bathyal sea
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[1] 曾允孚,夏文杰. 沉积岩石学[M].北京:地质出版社,1986:219-221.[ZENG Yunfu, XIA Wenjie. Sedimentary Petrology[M]. Beijing:Geological Publishing House, 1986:219 -221.]
[2] 邓运华,论河流与油气的共生关系[J].石油学报,2010,31(1):12-17. [DENG Yunhua. Analysis on correlation of river and petroleum[J]. Acta Petrolei Sinica, 2010,31(1):12-17.]
[3] 傅宁,米立军,张功成.珠江口盆地白云凹陷烃源岩及北部油气成因[J].石油学报,2007,28(3):32-38. [FU Ning, MI Lijun, ZHANG Gongcheng. Source rocks and origin of oil and gas in the northern Baiyun Depression of Pearl River Mouth Basin[J]. Acta Petrolei Sinica, 2007, 28(3):32-38.]
[4] 柳保军,申俊,庞雄,等.珠江口盆地白云凹陷珠海组浅海三角洲沉积特征[J].石油学报,2007,28(2):49-56. [LIU Baojun, SHEN Jun, PANG Xiong, et al. Characteristics of continental delta deposits in Zhuhai Formation of Baiyun Depression in Pearl River Mouth Basin[J]. Acta Petrolei Sinica, 2007,28(2):49-56.]
[5] 赵红静,张敏,张春明,等.珠江口盆地白云凹陷珠江、珠海组烃源岩倾油倾气性判识[J].地质科技情报,2010,29(2):5-9. [ZHAO Hongjing, ZHANG Min, ZHANG Chunming, et al. Oil/gas potential identification for Zhujiang and Zhuhai formations in Baiyun Depression, Pearl River Mouth Basin[J]. Geological Science and Technology Information, 2010,29(2):5-9.]
[6] 李友川,邓运华,张功成,等.南海北部第三系海相烃源岩[J].石油学报,2011,32(2):219-225. [LI Youchuan, DENG Yunhua, ZHANG Gongcheng, et al. Tertiary marine source rocks in the northern South China Sea[J]. Acta Petrolei Sinica, 2011,32(2):219-225.]
[7] 雷作淇.珠江口盆地第三纪孢粉组合及其意义[J].植物学报,1985,1(27):94-105. [LEI Zuoqi. Tertiary sporo-pollen assemblage of Pearl River North basin and its stratigraphic significance[J]. Acta Botanica Sinica, 1985,1(27):94-105.]
[8] 庞雄,陈长民,彭大钧,等.南海珠江深水扇系统及油气[M].北京:科学出版社,2007:100-120.[PANG Xiong, CHEN Changmin, PENG Dajun, et al. Pearl River deep-water Fan System and Petroleum in South China Sea[M]. Beijing:Science Press, 2007:100 -120.]
[9] Peters K E, Walters C C, Moldowan J M. The Biomarker Guide, 2nd edition[M]. Cambridge University Press, 2005.
[10] 张立平,黄第藩,廖志勤.伽马蜡烷——水体分层的地球化学标志[J].沉积学报,1999,17(1):136-140. [ZHANG Liping, HUANG Difan, LIAO Zhiqin. Gammacerane:Geochemical indicator of water column stratification[J]. Acta Sedimentologica Sinica, 1999, 17(1):136-140.]
[11] 王培荣,张大江,宋孚庆,等.区分渤中坳陷三套烃源岩的地球化学参数组合[J].中国海上油气,2004,16(3):157-160. [WANG Peirong, ZHANG Dajiang, SONG Fuqing, et al. The comprehensive geochemical parameters for distinguishing three sets of source rock in Bozhong depression[J]. China Offshore Oil and Gas, 2004, 16(3):157-160.]
[12] 李友川,邓运华,张功成.中国近海海域烃源岩和油气的分带性[J].中国海上油气,2012,24(1):6-12. [LI Youchuan, DENG Yunhua, ZHANG Gongcheng. Zoned distribution of source rocks and hydrocarbon offshore China[J]. China Offshore Oil and Gas, 2012, 24(1):6-12.]
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