摘要
秦昆接合部鄂拉山地区形成时限为拉丁期—卡尼期的地层,下部砂砾岩段具有较典型的磨拉石相沉积特点,是晚印支阶段西秦岭海域与东昆仑陆块对接造山的产物。
The lower member of the Ladinian-Carnian strata in the Ngola mountain,thejunction part of Qinling and Kunlun,is composed of sandstone and conglomerate and charac-terized by a typical molasse sediment. So this strata is the product of collision-orogeny be-tween West Qinling oceanic crust and East Kunlun landmass in Late Indosinian Cycle.
