新疆巴尔鲁克山一带下-中泥盆统库鲁木迪组岩相剖面分析及相模式建立

摘要

The Lower-Middle Devonian Kulumudi Formation of the Barluk Mountain area in west Junggar of Xinjiang has been widely considered to be product of the coastal neritic deposition environment. Through mapping Ⅰ,Ⅱlithofacies section of Kulu⁃mudi Formation, and in combination with lithology, sedimentary structure, thickness, fossils and other characteristics of Kulumudi Foramtion in the study area, the authors studied characteristics of sedimentary rock and facies as well as sedimentary sequence, and de⁃tected through analysis that Kulumudi Formation is composed of alluvial fan, fan delta and coastal-shallow sea facies. On such a basis, the authors put forward a sedimentary model of the Early-Middle Devonian period, which can provide certain basic geological data for the late stage regional geological survey work.%新疆西准噶尔巴尔鲁克山一带下—中泥盆统库鲁木迪组曾被广泛认为是滨海-浅海沉积相。通过测制库鲁木迪组Ⅰ、Ⅱ岩相剖面，结合工作区内库鲁木迪组岩性、沉积构造、厚度、化石等特征，研究其沉积岩石学及相特征，划分沉积相单元、组合序列，分析其由冲积扇、扇三角洲及滨-浅海相组成，重点建立该区早—中泥盆世沉积模式，为后期区域地质矿产调查工作提供一定的基础地质资料。