海拉尔盆地贝尔凹陷大磨拐河组二段物源分析  

Provenance of Sediments from MemberⅡof Damoguaihe Formation in Beier Depression in Hailaer Basin

作　　者：孙艳[1] 申家年[1] 赵方强[2] 宋婷[1] 

机构地区：[1]东北石油大学地球科学学院,黑龙江大庆163318 [2]青海油田格尔木炼油厂,青海格尔木816000

出　　处：《甘肃科学学报》2013年第4期32-35,共4页Journal of Gansu Sciences

摘　　要：利用贝尔凹陷大磨拐河组二段11口井重矿物资料,根据重矿物组合类型、含量及特征,结合代表重矿物成熟度的ZTR指数变化情况进行分析.结果表明,贝尔凹陷大磨拐河组二段时期母岩类型为中基性-中酸性岩浆岩;重矿物ZTR指数值由凹陷北部边缘向中部由小逐渐变大,由此判断贝尔凹陷大磨拐河组二段时期物源为凹陷的北部地区.The provenance of sediments from Member analyzed based on the data of heavy minerals,their comⅡ of Damoguaihe formation in Beier Depress bination, types, contents and characteristics, ion was and the ZTR index which indicates the maturity of heavy minerals. The study shows that parent rocks from ber Ⅱ of Damoguaihe formation in Beier Depression are medium basic and acidic magmatite. The ZTR of heavy minerals gradually increases from the north edge of the depression to its center, which d strates the provenance of sediments from Member Ⅱ of Damoguaihe formation in Beier depression is north of the depression. Mem- index emon- in the

关 键 词：重矿物 ZTR指数 物源方向 

分 类 号：P577[天文地球—矿物学]