准噶尔南缘前陆盆地物源体系演化规律EVOLUTION LAWS OF THE PROVENANCE SYSTEM IN THE FORELAND BASIN OF THE SOUTHERN MARGIN OF JUNGGAR BASIN
潘春孚,张常久,纪友亮,高志勇,卢哲
PAN Chunfu,ZHANG Changjiu,JI Youliang,GAO Zhiyong,LU Zhe
摘要(Abstract)：
通过分析准噶尔盆地南缘古近纪逆冲构造幕内不同构造活动阶段砂岩重矿物变化特征及砂地比,探讨了逆冲构造幕内的物源体系演化规律。研究表明:准噶尔盆地南缘前陆盆地同一逆冲构造幕内由强烈活动早期到高峰期发育的物源数量逐渐增多,距离物源越来越近;由强烈活动高峰期到构造活动宁静期发育的物源体系数量逐渐减少,逐渐远离物源,沉积物供给逐渐减少。
By the analyses of the changed characteristics of the heavy minerals and sandstone-formation ratio at different tectonic acting stages of Eogene thrust structure phase in the southern margin of Junggar Basin.The evolution laws of the provenance system in the phase are explored.The studies show that the developed provenances number is gradually increased from the initial period of the intensive activities to the peak period,and the distance to the provenances is more and more closer;while the number and distance for the provenances from the peak to the quiescent period are just on the contrary,and moreover the supplied sediments are gradually reduced.
关键词(KeyWords)：
前陆盆地;准噶尔南缘;逆冲活动;物源体系
foreland basin;the southern margin of Junggar;thrust activity;provenance system
基金项目(Foundation): 国家科技重大专项(2011ZX05003-002)
作者(Author):
潘春孚,张常久,纪友亮,高志勇,卢哲
PAN Chunfu,ZHANG Changjiu,JI Youliang,GAO Zhiyong,LU Zhe
参考文献(References)：
- [1]汪正江,陈洪德,张锦泉.物源分析的研究与展望[J].沉积与特提斯地质,2000,20(4):104-110.
- [2]赵红格,刘池洋.物源分析方法及研究进展[J].沉积学报,2003,21(3):409-412.
- [3]许秀才,刘元吉,赵建军,等.古龙北地区姚一段地层沉积物源及古水流分析[J].大庆石油地质与开发,2008,27(3):36-38.
- [4]王洪伟,杨建国,林东成.汤原断陷古近纪砂岩重矿物组合与物源分析[J].大庆石油地质与开发,2007,26(3):3942.
- [5]方世虎,郭召杰,贾承造,等.准噶尔盆地南缘中—新生界沉积物重矿物分析与盆山格局演化[J].地质科学,2006,41(4):648-662.
- [6]方世虎,贾承造,宋岩,等.准噶尔盆地南缘中—新生界碎屑成份特征与构造期次[J].地质科学,2007,42(4):753-765.
- [7]万里皋,刘登明,侯六根.准噶尔盆地南缘前陆冲断带构造特征研究[J].石油地球物理勘探,2005,40(增刊):40-45.
- [8]况军,齐雪峰.准噶尔前陆盆地构造特征与油气勘探方向[J].新疆石油地质,2006,27(1):5-9.
- [9]新疆维吾尔自治区地质矿产局.新疆维吾尔自治区区域地质志[M].北京:地质出版社,1993.
- [10]纪友亮,安爱琴,朱如凯.陆相前陆盆地层序结构特征研究——以准噶尔南缘晚期前陆盆地为例[J].石油与天然气地质,2008,29(2):237-243.
- [11]林畅松,刘景彦,张燕梅,等.库车坳陷第三系构造层序的构成特征及其对前陆构造作用的响应[J].中国科学:D辑,2002,32(3):177-183.
- [12]温德顺,苏龙,孙国强,等.前陆盆地的沉降和抬升机制研究进展[J].天然气地球科学,2006,17(3):385-390.