地质学报Issue(6)：152-164,13.
四川宣汉盘龙洞上二叠统长兴组白云岩组构定向与统计特征及其成因意义
Origin Evidenced by Statistic Feature and Orientation Fabric in the Upper Permian Changxing Formation Dolostone of Panlongdong,Northeastern Sichuan
摘要
Abstract
The dolostone of the Changxing Formation in Sichuan Basin is an important target of the exploration of petroleum.The Panlongdong profile is the best outcrop in northeast Sichuan,and the research of diagenesis of this profile is of vital importance for understanding the formation and evolution of Changxing reservoirs.The fabric and occurrence of dolostone contains genetic information.With the help of CL,we found that fabrics of dolostone can be divided into two types:uniform and heterogeneous,and the coarse dolomites are developed from the fine dolomites.The growth of powder dolomites is directional.Based on the research of diagenesis,statistics analysis of contents and sizes of dolomites are performed for the first time.The statistic result shows that the content and size of dolomite gradually reduced downward,which indicates that the dolomitizing fluid migrated downward,and the prevailing mimetic dolomites proves evidence of penecontemporaneous dolomitization.关键词
上二叠统/四川盆地/长兴组/白云石化/组构/定量统计Key words
Upper Permian/Sichuan Basin/Changxing Formation/dolomitization/fabric/statistics引用本文复制引用
赵锐,吴亚生,姜红霞,刘丽静..四川宣汉盘龙洞上二叠统长兴组白云岩组构定向与统计特征及其成因意义[J].地质学报,2014,(6):152-164,13.基金项目
国家自然科学基金重点-中石化联合基金（项目号40839906）和国家自然科学基金项目（项目号40472015、40802001、41372121）资助成果 （）
