摘要
PAN lang=EN-US style="FONT-SIZE: 14pt; FONT-FAMILY: ’Times New Roman’; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">The western part of the East Kunlun orogenic belt can be divided into three belts, namely, the back-arc basin, the arc belt and the accretion wedge. In the back-arc basin, there are sediments varying from continental shelf to deep basin, and intermediate-acidic volcanic deposits as well as limestone and sandstone. In Late Permian, deposition ended and changed into land. The sedimentary cover of the arc belt is a number of isolated carbonate platforms and intramontane basins. There existed intense volcanic activities, resulting in the formation of such facies of volcanic rocks as subvolcanic facies and explosive facies.
