新疆东昆仑阿其克库勒湖西缘地区蛇绿岩的确证

DETERMINATION OF OPHIOLITE AT THE WESTERN MARGIN OF AQIKEKULE LAKE,EAST KUNLUN OF XINJIANG

新疆东昆仑阿其克库勒湖西缘出露了一套超基性—基性岩。该蛇绿岩的野外地质、岩石学以及岩石化学特征表明它们是由变质橄榄岩和堆晶岩两大单元组成的蛇绿岩 ,是否存在蛇绿岩的其它单元值得进一步研究。同时 ,这些特征表明其与青海东昆仑清水泉蛇绿岩相似 ,指示它们可能为同一洋壳的残余。

A suite of ultramafic-mafic rocks outcrops is found at the western margin of Aqikekule Lake, East Kunlun of Xinjiang. Its geological, petrological and petrochemical characters show that it is an ophiolite composed of metamorphic peridotite and cumulate, but whether there are other components of ophiolite deserves further research. Meanwhile, these characters show their similarities to Qingshuiquan ophiolite, which indicates that they may be remnants of the same oceanic crust.