【摘要】 通过对昆仑山北麓的叶城剖面的实测及其与喜马拉雅山南麓的SuraiKhola剖面的对比分析表明 ,约 10MaBP以来 ,青藏高原以持续性隆升为主 ,划分高原整体隆升阶段的有效时间尺度下限是 1Ma ,高原隆升过程可划分为三大阶段 :10 0～ 6 0MaBP ,高原整体缓慢隆升 ;6 0～ 2 5MaBP为过渡性隆升阶段 ;2 \^5MaBP以来高原整体快速隆升。高原整体隆升高度可能于 4 6MaBP超过海拔 2 0 0 0m ,2 5MaBP超过海拔 30 0 0m。更多还原

【Abstract】 Comparative analysis of the Yecheng seciton at north piedmont of the Kunlun Mountain, and the Surai Khola section at south piedmont of the Himalayan Mountain, suggests that the Qinghai-Tibet plateau is dominated by continuous uplift over the past 10 million years, and the effective time scale for dividing the entire plateau uplift processes is 1 Ma or more. The entire process of the entire plateau can be divided into three stages based on sediment facies and deposit ratio, namely slow uplift stages between 10^0～6^0 Ma BP; transitional uplift stage between 6^0～2^5 Ma BP (including medium-velocity uplift of the south part of the plateau and low-velocity uplift of the north part of the plateau during 6^0～4^6 Ma BP; medium-velocity uplift of the south part of the plateau and high-velocity uplift of the north partole the plateau during 3^5～2^5 Ma BP), and the high-velocity uplift stage after 2^5 Ma BP. The uplift elevation of the entire plateau exceeded {2 000} m above sea level maybe by 4^6 Ma BP and exceeded{3 000} m above sea level by 2^5 Ma BP.更多还原