Division of the Carboniferous lithostratigraphic units in Awulale area, western Tianshan

作者：Li YongJun^*; Li ZhuCang; Zhou JiBing; Gao ZhanHua; Gao YongLi; Tong LiMing; Liu Jing

来源：Acta Petrologica Sinica, 2009, 25(6): 1332-1340.

• Carboniferous
• Lithostratigraphic units division
• Awulale area
• Western Tianshan
• Xinjiang

For quite a long time, on the basis of the rough regional comparison, mail), geologists and organizations have contributing the Carboniferous in A-wulale area of western Tianshan to Early Carboniferous Awulale Formation ("Dahalajunshan Formation"). I : 50000 regional geological surveying confirmed that Awulale Formation call be broken up into three parts. The cale-alkaline volcanic rocks in the lower part, its Rb-Sr isochron age is 351 Ma; shallow marine carbonate rock-elastic rocks that were abundant during the Early Carboniferous with Brachiopod such as Gigantopraductu and coral fossils such as Gangamophyllum, vetiforme in the middle part; the bimodal volcanic rocks in the upper part, its Rb-Sr isochron age is 294 similar to 313Ma. Their contact relationship is angular unconformity. In this paper the Carboniferous of the study area for the first time into major lithostratigraphic units ill light of the principle of multiple stratigraphic classificat, three formation are set up in ascenking order: Dahalajunshan Formation ( Early Carboniferous), Akeshake Formation (Early Carboniferous) and Yishijilike Formation(Late Carboniferous).

• 出版日期2009-6
• 单位长安大学