一种辫状河、曲流河复合沉积体层序特征及其成因
|
摘要
为了探讨辫状河、曲流河复合沉积体系的层序地层分析方法,以哈萨克斯坦南图尔盖盆地南部下白垩统沉积体为例,在确定河流成因类型和相构成的基础上,考虑沉积地质、测井和地震资料,对下白垩统沉积体进行层序地层划分.结果表明:研究区下白垩统层序1主要发育低位体系域和湖侵体系域,高位体系域发育局限.低位体系域主要为辫状河沉积,包括河床滞留沉积和心滩;湖侵体系域主要为曲流河沉积,包括曲流河河道和泛滥平原.辫状河与曲流河复合沉积层序主要受古气候、古构造和沉积物供给因素控制.该复合沉积层序的形成为认识和对比地下复杂河流相地层提供了较好的实例.
A composite stratigraphy of depositional system of braided and meandering river in South Turgai Basin in Kazakhstan is analyzed.The causes of river type and phase composition are determined,it includes the meandering river channel,flood plain,riverbed detention sediment and bar of braided river.According to sedimentary geology,logging and seismic data,the sedimentary sequence of Lower Cretaceous sedimentary body is divided.Low stand system tract and transgrasive system tract developed in sequence 1,and high stand system tract poorly developed.Braided river developed in LST and meandering river mostly developed in TST.The composite sedimentary sequence of braided river and meandering river is controlled by paleoclimate,palaeotectonic and sediment supply.This composite sedimentary sequence of braided and meandering river provides a good example of comparison for understanding the formation of underground strata of river.
A composite stratigraphy of depositional system of braided and meandering river in South Turgai Basin in Kazakhstan is analyzed.The causes of river type and phase composition are determined,it includes the meandering river channel,flood plain,riverbed detention sediment and bar of braided river.According to sedimentary geology,logging and seismic data,the sedimentary sequence of Lower Cretaceous sedimentary body is divided.Low stand system tract and transgrasive system tract developed in sequence 1,and high stand system tract poorly developed.Braided river developed in LST and meandering river mostly developed in TST.The composite sedimentary sequence of braided river and meandering river is controlled by paleoclimate,palaeotectonic and sediment supply.This composite sedimentary sequence of braided and meandering river provides a good example of comparison for understanding the formation of underground strata of river.
引文
[1]Vail P R,Sangree J B.应用层序地层学[M].张宏逵,译.东营:石油大学出版社,1991:17-27.
[2]Wright V P,Marriott S B.The sequence stratigraphy of fluvial depositional systems the role of floodplain sediment storage[J].Sedi-mentary Geology,1993,86:203-210.
[3]邓宏文,吴海波,王宁,等.河流相层序地层划分方法—以松辽盆地下白垩统扶余油层为例[J].石油与天然气地质,2007,28(5):621-627.
[4]王平在,王俊玲.嫩江现代河流沉积层序及沉积模式[J].沉积学报,2003,21(2),228-233.
[5]郭峰,郭岭,姜在兴,等.潮白河现代沉积特征与沉积模式[J].大庆石油学院学报,2010,34(2):7-10.
[6]孙铁军,李庆华.哈萨克斯坦南图尔盖盆地构造特征研究[J].石油地球物理勘探,2008,43(增2):168-173.
[7]鲍丹丹.南图尔盖盆地ADM探区上侏罗统层序地层学及沉积体系研究[D].北京:中国地质大学,2009.
[8]秦兰芝.东营凹陷东部沙四上亚段层序地层学及沉积相研究[D].北京:中国地质大学,2009.
[9]张春书,王?,张元福,等.阿尔及利亚Chelif盆地中—新生界烃源岩研究[J].现代地质,2009,23(5):908-915.
[10]周银邦,吴胜和,岳大力.地下密井网识别废弃河道方法在萨北油田的应用[J].石油天然气学报,2008,30(4):33-36.
[11]姜在兴.沉积学[M].北京:石油工业出版社,2003.
[12]马凤荣,张树林,王连武,等.现代嫩江大马岗段河流沉积微相划分及其特征[J].大庆石油学院学报,2001,25(2):8-11.
[13]马世忠,孙雨,范广娟,等.地下曲流河道单砂体内部薄夹层建筑结构研究方法[J].沉积学报,2008,4(26):632-639.
[2]Wright V P,Marriott S B.The sequence stratigraphy of fluvial depositional systems the role of floodplain sediment storage[J].Sedi-mentary Geology,1993,86:203-210.
[3]邓宏文,吴海波,王宁,等.河流相层序地层划分方法—以松辽盆地下白垩统扶余油层为例[J].石油与天然气地质,2007,28(5):621-627.
[4]王平在,王俊玲.嫩江现代河流沉积层序及沉积模式[J].沉积学报,2003,21(2),228-233.
[5]郭峰,郭岭,姜在兴,等.潮白河现代沉积特征与沉积模式[J].大庆石油学院学报,2010,34(2):7-10.
[6]孙铁军,李庆华.哈萨克斯坦南图尔盖盆地构造特征研究[J].石油地球物理勘探,2008,43(增2):168-173.
[7]鲍丹丹.南图尔盖盆地ADM探区上侏罗统层序地层学及沉积体系研究[D].北京:中国地质大学,2009.
[8]秦兰芝.东营凹陷东部沙四上亚段层序地层学及沉积相研究[D].北京:中国地质大学,2009.
[9]张春书,王?,张元福,等.阿尔及利亚Chelif盆地中—新生界烃源岩研究[J].现代地质,2009,23(5):908-915.
[10]周银邦,吴胜和,岳大力.地下密井网识别废弃河道方法在萨北油田的应用[J].石油天然气学报,2008,30(4):33-36.
[11]姜在兴.沉积学[M].北京:石油工业出版社,2003.
[12]马凤荣,张树林,王连武,等.现代嫩江大马岗段河流沉积微相划分及其特征[J].大庆石油学院学报,2001,25(2):8-11.
[13]马世忠,孙雨,范广娟,等.地下曲流河道单砂体内部薄夹层建筑结构研究方法[J].沉积学报,2008,4(26):632-639.
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心