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一、区域岩石序次萨尔托海基性—超基性火山岩位于新疆西准噶尔界山华力西褶皱带扎依尔复向斜之南翼,达拉布特基性—超基性火山岩带中的一个膨大岩席(岩体)。岩带呈北东60°延伸,超基性岩度仅在南东缘遭受剥蚀,出露地表,范围约14.7平方公里。岩席的下伏围岩,为一套具有地壳急剧隆起特征的海退沉积层序的中泥盆统砂砾岩层,自下而上岩石颗粒由细到粗,常含棱角状砾石及同生角砾。超基性岩席由于其上覆盖有基性火山岩和硅质岩及碳酸盐的透镜体,铬铁矿的勘探工作仅限于南东缘约4平方公里的出露范围内,故其全貌尚待查明。
First, the regional rock sequence Salto sea basic - ultrabasic volcanic rock is located in the western Whanganexian Wulixi fold belt Zai Yier syncline south wing, Dalbutake basic - ultrabasic volcanic belt In a swollen rock seats (rock). The rock belt extends 60 ° to the north east. Ultramafic rocks are eroded only on the southern and eastern fronts, exposing to the earth’s surface and covering an area of about 14.7 km 2. The underlying rock of the mantle is a middle-Devonian glutenite gravel layer with retrogressive sedimentary sequence of sharp crustal crust. The bottom-up rock particles are fine to coarse, often containing angular gravel and cohabitation horns gravel. Ultramafic mats due to their covered with basic volcanic rocks and silicalites and carbonate lens body, chromite exploration is limited to about 4 square kilometers of the southern and eastern boundaries of the exposed range, so the whole picture is still To be found.