Besides , the sedimentary facies of upper ganchaigou and lower ganchaigou formation were also mapped in supersequences which are the main target strata for exploration . the high resolution sequence stratigraphic framework showed the genetic relationship between the distributions of sedimentary facies and their tectonic settings . the near - source sedimentary systems such as subaqueous alluvial fan and lake - floor fan are often deposed in rise - hemicycles in the steep slope background in the north , the coarse lithology of fan - delta prograded from north to south in fall - hemicycles , and the braided stream facies are formed in the rise - hemicycles in gentle slope background in the south , braided stream facies prograded from sorth to north in the fall - hemicycles , but the lacustrine facies and salt lake facies developed in the middle part of the area 详细的沉积相研究发现，红狮地区第三系发育有冲积扇、水下冲积扇、河流、三角洲、扇三角洲、湖泊和湖底扇7种主要沉积相类型，并对作为区内主要勘探目的层系的下干柴沟组和上干柴沟组进行了以超层序为单位的沉积相平面编图，以较高的时间分辨率揭示了区内沉积相带的平面展布及其在不同构造背景中的分布规律，比如在北部的凹陷陡坡背景下，上升半旋回低水位期通常发育有水下扇、湖底扇等陡岸近源特征的沉积体系，下降半旋回高水位期，扇三角洲相粗碎屑岩由北向南进积;在南部的凹陷缓坡背景下，上升半旋回主要发育辫状河流相，下降半旋回辫状河三角洲相由南向北进积;而中部红柳泉一狮子沟一带则为湖泊相沉积和盐类沉积。
Based on the observation of the outcrops , we studied the details of the sedimental facies in ganchaigou formation , and analysed the variety of sedimental facies , including alluvial - fan facies , braided stream facies , fan - delta facies , lacustrine facies , lacustrine floor fan facies and storm deposit facies 摘要在野外地质剖面研究的基础上，对柴达木盆地西部古近新近系干柴沟组进行了详细的沉积相研究，分析了干柴沟组发育的冲积扇、河流、三角洲、扇三角洲、湖泊、湖底扇及风暴沉积等几种沉积相类型。
Based on 16 230th dating ages and 1187 data of stable isotopic compositions as well as annual laminated sequences of the stalagmites , the author firstly presents the climate records of the past 2000 years in shennongjia region . by comparing the stalagmite record with historical records , lake sediments and pollen data , the author analyzes comparability and differences of climate change in east asia monsoon area and preliminarily investigates driven forces of climate change 基于16个~ ( 230 ) th年龄、 1187个氧碳同位素数据分析和显微岩相研究，首次建立了神农架高海拔地区近2000年气候演化序列，通过与历史记录、湖泊沉积、孢粉资料对比分析了东亚季风区不同地区气候演化的相似性和差异性。
Through using microfacies analysis and heavy mineral , the source direction is determined . through logging facies and sand body contour , the depositional system is determined . through using wave - classification , stratimagic facies analysis , the reservoir distribution is predicted in the unknown fields 相分析方法技术解决了储层的类型及其宏观展布问题，在本文中，系统运用了沉积微相研究方法、轻重矿物等确定物源方向、运用测井相、砂体厚度图等方法确定宏观沉积体系，运用波形分类、 stratimagic相分析技术预测未知区储层的宏观展布。
From sedimentology symbol such as rock assembled , sediment gradus , sandstone grading analysis , protogene sedimentary structure , ichnofossile and logging facies etc and palaeoenvironment background , it is confirmed that shen84 - an12block s34 segment is braid river delta system , not fan delta system ( abrupt slope ) . then it can be more partition as braid river delta plain sedimentary assembled , delta front sedimentary assembled and prodelta sedimentary assembled on core and log assembled . and delta plain sedimentary assembled can be identified four microfacies : braided distributary channel , crevasse splay , overbank deposits and interdistributary bay 沉积微相研究是储层非均质性研究的基础，研究区有丰富的岩芯资料和测井资料，通过岩石组合、沉积韵律，砂岩粒度分析、沉积构造、古生物遗迹和测井相等沉积学标志，结合古环境背景，确定沈84 ?安12块s _ 3 ~ 4段为辫状河三角洲体系，而不是前人所认为的扇三角洲(陡坡型)体系，在岩芯和测井组合上可进一步划分为辫状河三角洲平原沉积组合、三角洲前缘沉积组合和前三角洲沉积组合，其中三角洲平原沉积组合又可识别出辫状分流河道、决口扇、分流河道边部和分流间湾四种微相类型；三角洲前缘沉积组合识别出水下分流河道、水下分流河道边部和分流河口坝三种微相。
The research on the lithologjcal and mineral parameters and the sedimentary fades of different periods of mesozoic strata shows that the northern boundary of yanqi basin is almost the same , but great differences existed in the southwestern yanqi basin , that is , the sedimentary range of mesozoic original basin is more bigger than present basin 中生代地层各种岩矿参数和各时代沉积相研究表明，今焉耆盆地北部与原始沉积边界较为相近；西南和南部的边界今古差异较大，即在中生代原始盆地沉积范围要比今盆地范围要广。
