沉积与特提斯地质2018，Vol.38Issue(1)：41-52,12.
准噶尔盆地东缘中侏罗统头屯河组层序地层与沉积演化
Sequence stratigraphy and sedimentary evolution of the Middle Jurassic Toutunhe Formation on the eastern margin of the Junggar Basin,Xinjiang
摘要
Abstract
The present paper deals,on the basis of high-resolution sequence stratigraphic theory,outcrops and well logs,with the sequence stratigraphic division and correlation,sedimentary facies distribution and sedimentary environmental evolution of the Middle Jurassic Toutunhe Formation,aiming at revealing the sequence stratigraphic characteristics and sedimentary evolution of the Middle Jurassic Toutunhe Formation on the eastern margin of the Junggar Basin,Xinjiang. The Middle Jurassic Toutunhe Formation consists of one third-order,three fourth-order and nine fifth-order depositional cycles,and comprises the deepening-upward symmetric and asymmetric types of sequence architectures. The sediments are mainly composed of sandy conglomerates and mudstones. The sedimentary environments are separated into braided river,braided delta,and littoral and shallow lake with the lake transgressive evolution spanning from the depositional period of the first member of the Middle Jurassic Toutunhe Formation (J 2 t1 )to the depositional period of the second member of the Middle Jurassic Toutunhe Formation (J 2 t2 ). The sedimentary model is proposed herein showing the sedimentary evolution of the braided river facies, braided delta facies and lacustrine facies in the Middle Jurassic Toutunhe Formation in the study area.关键词
准噶尔盆地/中侏罗统/头屯河组/层序地层/沉积相/演化模式Key words
Junggar Basin/Middle Jurassic/Toutunhe Formation/sequence stratigraphy/sedimentary facies/sedimentary model分类
能源科技引用本文复制引用
李欢,邹灏,李欣宇,黄澎涛,张强,殷栋法,司马献章,俞礽安..准噶尔盆地东缘中侏罗统头屯河组层序地层与沉积演化[J].沉积与特提斯地质,2018,38(1):41-52,12.基金项目
国家自然科学基金(41702108) （41702108）
中国地质调查局项目"新疆富蕴喀斯特村铀矿地质调查"(12120113076400) （12120113076400）
国家973项目"中国北方陆相盆地大规模铀成矿作用"(2015CB453006) （2015CB453006）
