阿联酋阿布扎比地区早白垩世Lekhwair组滨外碳酸盐岩微相特征  

Carbonate Microfacies of the Lekhwair Formation (Lower Cretaceous) Offshore Abu Dhabi, U.A.E

作　　者：王洁[1] 

机构地区：[1]中国地质大学(北京)地质过程与矿产资源国家重点实验室,北京100083

出　　处：《石油天然气学报》2010年第1期33-38,共6页Journal of Oil and Gas Technology

基　　金：国家科技重大专项课题(2008ZX05031-01)

摘　　要：阿联酋阿布扎比地区早白垩世Thamama群,包含Habshan、Lekhwair、Kharaib、Shu'aiba和Bab组。Lekhwair组由13个叠加的四级层序组成。根据化石组合、岩性、沉积结构确定了其四级层序海进体系域(TST)和高位体系域(HST)的微相类型,并根据有孔虫和藻类对深度的指示作用及微相的连续性,建立了Lekhwair组海进体系域和高位体系域的沉积模式,并对其沉积环境进行了分析。Thamama Group included Habshan,Lekhwair,Kharaib,Shu’aiba and Bab Formations. Lekhwair Formation was consisted of 13 different fourth-order sequences. The microfacies are established based on fossil assemblages, lithology, sedimentary texture. Platform carbonate model is built in HST/TST according to foraminifera depth indicator, microfacies types and the succession of assemblage microfacies;and the depositional environment is explained in the model.

关 键 词：碳酸盐岩 微相类型 沉积模式 Lekhwair组 阿布扎比地区 

分 类 号：P618.13[天文地球—矿床学]