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本区位于西藏阿里地区日土县班公湖以北、龙木错以南,喀喇昆仑山系东南部,地质学家们称之为“羌塘地块”的西邻,东经80°00′—80°30′,北纬34°00′—34°31′的范围内。今日的新阿公路南北向贯穿本区。 新中国诞生前,到本区考察的有:S.Hedin(1906—1908)和E.Norim(1946)等人。解放以后,新疆煤田地质勘探公司156队(1974),中国科学院青藏科考队阿里分队(1976),西藏综合地质大队(1980)和本文作者参加的地调大队四分队(1980,1981)也先后进入本区考察。由于自然条件恶劣,地质研究程度还很粗略。值得提出的是,Norin(1946)将他命名的霍尔巴错岩系(Horpatso Series)与克什米尔的集块板岩(Ag-glomeratic Slate)对比,认为它们同属于冈瓦纳相。由于 Norin 当年的剖面不完整,又缺乏化石依据,长期以来,未受到应有的重视。中国科学院的考察成果,目前仅有《西藏古生物》第三分册的文章记述了本区部分古生物和地层简况,但也是本区重要的参考
The area is located in the north of Balanghu, Rift Valley, in the Ali area of Tibet, south of the Longmu fault and southeast of the Karakorum mountain range. Geologists call it the west of the Qiangtang block and east longitude 80 ° 00 ’ -80 ° 30 ’, latitude 34 ° 00’-34 ° 31 ° north. Today’s new highway runs north and south through this area. Before the founding of New China, the study tours to this area included S. Hedin (1906-1908) and E. Norim (1946). After the liberation, Xinjiang Coalfield Geological Prospecting Company 156 (1974), Chinese Academy of Sciences Qinghai expedition team Ali detachment (1976), Tibet Geological Geological Team (1980) and the author participated in the Gendarmerie Brigade unit (1980,1981) also successively Into the study area. Due to poor natural conditions, the degree of geological research is still very rough. It is worth noting that Norin (1946) compared his named Horpatso Series with the Ag-glomeratic Slate of Kashmir, and considered them both belong to the Gondwana. Due to the incomplete profile of Norin and the lack of fossil basis, Norin has not received due attention for a long time. At present, only the articles of the third volume of the “Tibet Paleontology” account for the achievements of the Chinese Academy of Sciences in describing some paleontology and stratum profiles in the area, but they are also important references in this area