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通过对青藏高原及邻区马兰黄土重矿物的研究表明，以昆仑山—布尔汗达山—西倾山—岷山为界，黄土重矿物特征表现为两大沉积区系，以北重矿物母岩特征以侵入岩和深变质岩为主的风化产物，主要来源于亚洲内陆干旱的沙漠、戈壁区；以南重矿物母岩特征，以侵入岩、火山岩和浅变质岩为主的风化物质，主要来源于青藏高原冰碛和寒冻风化物。高原隆起的特殊地形效应及其所产生的大气环流作用以及源区物质的区域性差别可能是马兰黄土重矿物组成及其来源差异的主要原因
Through the study on the heavy minerals in the Malan loess in the Qinghai-Tibet Plateau and its adjacent areas, it is shown that the heavy minerals in the loess are characterized by two major sedimentary facies with the Kunlun Mountains - Burhanhan - Xixian Mountain - Minshan as the boundary, The rock products are mainly composed of intrusive rocks and deep metamorphic rocks. The weathering products mainly originate from the inland arid deserts and Gobi area in Asia. The characteristics of the parent rocks of the south heavy minerals are mainly from the intrusive rocks, volcanic rocks and super-metamorphic rocks , Mainly from moraine and frost weathered in the Qinghai-Tibet Plateau. The special topographic effects of plateau uplift and its resulting atmospheric circulation and the regional differences of source material may be the main reason for the differences in the composition and source of heavy minerals in Malan loess