Sedimentary Setting of Mesozoic and Its Petroleum Geologic Featur es in Western Tar im Basin

Abstract

Abstract: The geophysical information and surface geologic data from Kashi sag in Tarim basin are comprehensively analyzed. The study shows that several sedimentary centers appear in Mesozoic of this area, characterized by that the thickness in the west is bigger than that in the east and pinch-out toward the east. There exist two sedimentary systems in Jurassic: one is the fault basin within Talas-Ferghana fracture belt; the other is the piedmont depressions in South Tianshan and West Kunlun mountains, with distinct differences between them in lithology. Accordingly, the source rocks in the two systems produce two petroleum systems, and the petroleum geologic feature of Mesozoic in Kashi sag is obviously different with Kuqa depression in the east and Afghanistan-Tajikistan basin in the west. It is believed that the reason for such differences is that the sedimentary settings in Mesozoic era are different among them.

Key words: Tarim basin, Kashi sag, Mesozoic, sedimentary setting, petroleum potential

CLC Number:

TE111.3

LIU Sheng, QIU Bin, CHEN Xin-an, LI Yong, ZHAO Wei-dong, ZHANG Xian-jun, ZHEN Ya-fang. Sedimentary Setting of Mesozoic and Its Petroleum Geologic Featur es in Western Tar im Basin[J]. Xinjiang Petroleum Geology, 2006, 27(1): 10-14.

References

[1] 李溪滨. 喀什凹陷石油地质特征[J]. 新疆石油地质,1995,16(4):285-289.
[2] 钱一雄,吉让寿,秦德余,等. 喀什凹陷北缘中新生界的油气勘探前景———含油气系统理论的初步运用[J]. 石油实验地质,2001,23(1):32-37.
[3] 吴超,翟胜敏,邱斌,等. 塔里木盆地喀什凹陷含油气评价[J]. 新疆石油地质,2003, 24(3):221-223.
[4] 罗金海,周新源,邱斌,等. 塔拉斯- 费尔干纳断裂对喀什凹陷的控制作用[J]. 新疆石油地质,2004,25(6):584-587.
[5] 陈荣林. 塔里木盆地西南地区晚三叠世地层的发现及其地质意义[J]. 石油实验地质,1998,20(4):328-331.
[6] 王智,李猛. 乔落克萨依组新知[A]. 第三届全国地层会议论文集[C]. 北京:地质出版社,2000. 339-342.
[7] Burtman V S.Faults of Middle Asia[J]. Amer. J. Sci., 1980,28:725-744.
[8] Burtman V S, Skobele S F, Molnar P.Late Cenozoic slip on the Talas-Ferghana fault, the Tianshan, central Asia[J]. Geological Society of America Bulletin,1996,108(8):1 004-1 021.
[9] 罗金海,车自成,刘良. 喀什凹陷的成因及找油方向[J]. 西北大学学报(自然科学版),1998,28(5):435-438.
[10] Sobel E R.Basin analysis of the Jurassic- Lower Cretaceous in southwest Tarim basin, northwest China[J]. Geological Society of America Bulletin, 1999, 111(5):709-724.
[11] 张春生. 塔西南坳陷侏罗系断陷盆地沉积特征[J]. 矿物岩石,2000,20(3):41-45.
[12] 史基安,陈国俊,王琪,等. 塔里木盆地西部层序地层与沉积、成岩演化[M]. 北京:科学出版社,2001.
[13] 钟大康,朱筱敏,王贵文,等. 塔里木盆地喀什凹陷侏罗纪古环境[J].古地理学报,2002,4(4):47-54.
[14] Kosarev G L, Petersen N V, Vinnik L P.Receiver functions for the Tianshan analog broadband network: contrasts in the evolution of structure across the Talasso-Fergano fault[J]. Journal ofGeophysical Research, 1993, 98: 14 437-14 448.
[15] Allen M B, Alsop G I, Zhemchuzhnikov V G.Dome and basin refolding and transpressive inversion along the Karatau fault system, southern Kazakstan[J]. Journal of Geological Society, London, 2001, 158(1): 83-95.
[16] 江德昕,杨惠秋. 新疆喀什凹陷原油中的孢子花粉[J]. 植物学报,1996,38(10):809-813.
[17] 江德昕,杨惠秋. 塔里木盆地原油孢粉集合[J]. 沉积学报,2000,18(1):80-88.