塔里木盆地西部康克林组沉积期生物礁滩体——以柯坪地区苏巴什露头剖面为例

塔里木盆地西部石炭纪-二叠纪发育具有良好油气勘探前景的生物礁滩体。以柯坪小区苏巴什剖面中发育的康克林组为例，并结合麦盖提小区莎车县和什拉莆剖面、阿合奇小区阿克苏四石厂剖面，对生物礁滩体类型及特征做了深入的研究，在横向上对康克林组或相当于康克林组发育的礁滩体进行了详细的岩性、岩相对比研究，在此基础上建立了研究区礁滩发育的碳酸盐岩沉积模式。研究结果认为：（1）柯坪苏巴什剖面康克林组中发育的生物礁灰岩属于原生礁岩，为台地边缘和台内浅滩生物礁滩相带沉积,分布范围广阔；（2）塔西地区康克林组沉积早期与晚期具相异的沉积环境，区域相带的迁移特征反映了海平面升降变化和古地形对沉积格局的控制；（3）康克林组沉积期生物礁滩体在塔西地区广泛发育，横向上具良好的可对比性，是塔里木盆地西部重要的勘探目的层系之一。

Characteristics of Reef and Beach Facies in the Kangkelin Age from Western Tarim Basin--A Case Study from the Subashi Outcrop Section in the Keping Area

Reef-beach bodies of Permo-Carboniferous are well developed in western Tarim Basin,in which there are good oil and gas potentials. Based on the Kangkelin Formation of Subashen outcrop section in Keping country and integrated with Heshenlapu and Sishichang ones,the characteristics and types of reef-beach bodies are discussed,the lithology and lithofacies distribution are studied and the depositional model of carbonate rocks of Permo-Carboniferous in western Tarim Basin is established.It is suggested:(1) As primary reef rocks,the reef limestone,which well developed in the Kangkelin Formation of Subashen outcrop section in Keping country,was deposited in the environments from the margin of carbonate platform to the internal of that;(2) In western Tarim Basin,the early and late Kangkelin Age's depositional environments are different, the sea-level change and the paleogeographic condition are reflected by the transfer of the facies zones;(3) The reef-beach bodies of the Kangkelin Age are well developed and have a good spatial continuity.It should be one of the most important reservoirs in western Tarim Basin.