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准噶尔盆地东北缘石钱滩组古气候特征
PALAEOCLIMATIC CHARACTERISTICS OF THE SHIQIANTAN FORMATION IN NORTHEAST MARGIN OF JUNGGAR BASIN, XINJIANG
【摘要】 <正> 石钱组滩系袁复礼教授(1938)建立的“石钱滩建造”演化而来.该组分布于克拉麦里山以南,沿准噶尔盆地东北缘呈北西、南东向展布.石钱滩组含无脊椎动物化石丰富,并有油气迹象,从而引起广大地质工作者的注意.1984、1985年笔者与新疆地矿局第二区调大队四分队合作,对石钱滩组进行了详细的野外工作,取得了丰富的化石和地层资料.在此基础上,本文试对石钱滩组的古气候特征作初步探讨,不足之处,请批评指正.
【Abstract】 The Shiqiantan Formation of late Carboniferous is distributed to the northeast margin of Junggar Basin, which is mainly composed of bioclastic limestone and mudstone with aboundant fossils.Based on palaeontology ( including bivalve, coral, siliceous sponge and palaeoflora ) , fossil fragment association, clay minerals, lith-ostratigraghy and oxygen isotope geothermometry.the palaeoclimatic characteristics of the Shiqiantan Formation has been discussed in this paper. The authors have come to a conclusion that the Shiqiantan Formation was formed in the semiarid and warm temperate climate. Some possible factors affecting the climate, such as palaeolatitude, atmospheric circulation, plate movement, are analysed.
- 【文献出处】 新疆地质 ,Xinjiang Geology , 编辑部邮箱 ,1988年03期
- 【被引频次】4
- 【下载频次】127