昆仑山区构造区划初探

青藏高原虽然经过了多次考察,已经基本摸清了高原的构造格架,然而高原西北部的昆仑山—喀喇昆仑山地区的构造区划仍很不明确。经过这次考察,获得了大量新资料;新发现了库地-苏巴什为一条独立的更早阶段的重要构造界线。考察发现麻札-康西瓦-木孜塔格构造带与东面的昆仑山口-玛沁构造带相联,是真正原第四缝合带所指。由以上这两条构造带把昆仑山分成了北带、中带与南带3部分,而南带从构造发育历史看它与可可西里-巴颜喀喇区相联,不属于真正的昆仑构造区。

A PRELIMINARY STUDY ON THE REGIONALIZATION OF THE STRUCTURES IN THE KUNLUN MOU-NTAINS REGION

Through many explorations, the structural framework of the Qinghai-Xizang Plateau has been basically established, but the regionalization of the structures of the Karakoram and Kunlun Mts. region in the northwestern part of the Plateau is still not clear. In the recenr exploration, large amount of new data were obtained. It has been found that the Kude-Subashi structural zone is an independent important structural line of an earlier stage. It has also discovered that the Maza-Kangxiwar-Motzetage structural zone is connected with the Kunlua-shankou-Maqin structural zone. The above mentioned two structural zones c'ivided the Karakoram and Kunlun Mts. region into three belts, namely, north belt, middle belt, and south belt. The south belt, according to its developmental history, is linked to the Bayan Kara region and does not belong to the real Kunlun structure region.