新疆库鲁克塔格某地角砾云母橄榄岩主要特征的初步研究  

MAIN FEATURES OF KIMBERLITE IN CERTAIN AREA OF KURUKTAG, XINJIANG

作　　者：黄存焕 刘树宝 宋松山 

机构地区：[1]新疆维吾尔自治区地质矿产局第三地质大队

出　　处：《新疆地质》1989年第2期41-48,共8页Xinjiang Geology

摘　　要：该角砾云母橄榄岩处于塔里木地台库鲁克塔格断隆.为晋宁期侵入岩,同位素年龄900Ma.围岩同位素年龄为2019—2150—2305Ma.该角砾云母橄榄岩与已知含金刚石金伯利岩在岩石、矿物成分.化学成分、结构、构造、微量元素地球化学特征、稀土元素丰度及分配模式,成岩温度.压力、氧逸度等方面均有惊人的一致性.With regard of tectonics this kimberlite is located in the kuruktag faulted uplift of Tarim Plutform. It is a intrusive body of Jinning Period dated 900Ma. The kimberlites had been intruded into clast rocks of early of Proterozoic became amphibalite of low facies and migmatite with metamorphim.U-Pb dating of the zirkon from the clastic rocks shows 2019-2150-2305 Ma in age. Compared with well known diamond bearing kimberlite they have very similar properties such as: mineral and chemical compnents, texsture and structme, geochemical features of rare elements, abundace and distri-butrun pattern of rare earth element's, diagenetic temperatme and pressure and oxygen fugacity. Therefore it's favourable district to search for diamond.

关 键 词：晋宁期侵入岩 角砾云母橄榄岩 含金刚石金伯利岩 

分 类 号：P5[天文地球—地质学]