Gondwana facies of Late Carboniferous and Permian age have been widely distributed in the Qomolangma Feng region in Southern Xizang, China. This paper describes the sediments in the northern slope of the Qomolangma Feng recently discovered by the Qomolangma Feng Scientific Expedition during the years 1974-1975, and also roughly correlates them with the sediments of Salt Range and other regions of the Himalayas.The Gondwana facies concerned here are characterized by the glacial marine sediments, the Stepanoviella fauna of Jilong Formation and the Glossopteris flora of the Qubu Formation. The Jilong Formation with thickness about 730 m, can be subdivided into the lower Zhadari diamictite member, the middle Stepanoviella arenaceous siltstone member and the upper Chaya Quartzose sandstone member. The Zhadari diamictite member, thick approximately 30 m, consists mainly of grey diamicti-tes of glacial marine origin and may be correlated with the Talehir boulder beds from the Indian sub-continent, the age of which is generally believed to represent Late Carboniferous or Late Carboniferous to Early Sakmarian stage. The Stepanoviella arenaceous silttone member, about 0.5-1m thick, consists of bioclastic arenaceous siltstone with aboundent megafossils known as Stepanoviella fauna of Late Sakmarian to Early Artinskian stage, comparable with the Umaria marine beds or Eurydesma fauna (s.l.) from the Indian sub-continent. The chaya quartzose sandstone member, about 700 m thick, consists of the fine sandstone and quartzose sandstone intercalated with some shales. The Qubu Formation (about 20m thick) is represented by quartzitic sandstone and shales of early Late Permian, very rich in Glossopteris flora and comparable with Raniganj Formation of the Damuda, Group in the Indian sub-continent.Following the plate tectonics theory, the "Xiang Quan-Yalu Tsangpo suture" probably represents the collision boundary of the Indian Plate subducted beneath the Eurasia Plate before 70-12 million years. Thus it obvious that the whole Himalayan mountains once occurred as a part of the northern margin of the Indian Plate, as is shown by the occurrence of the Gondwana facies in the northern slope of the Qomolangma Feng and other regions of the Himalayas. It is, therefore, suggested that the Southern Tethyan Himalayan Sea in Late Palaeozoic was an epiric sea associated with the Indian Plate.From the informations mentioned above the northern boundary of the Gondwana facies occurred in Asia continent seems to be not beyond the Xiang Quan-Yalu tsangpo river geosuture.
. 1976, 珠穆朗玛峰北坡冈瓦纳相地层的发现. 地质科学, 11(4): 291-322.
. ON THE DISCOVERY OF THE STRATIGRAPHY OF GONDWANA FACIES IN NORTHERN SLOPE OF THE QOMOLANGMA FENG IN SOUTHERN XIZANG, CHINA[J]. Chinese Journal of Geology, 1976, 11(4): 291-322.