Abstract
Based on the theory of sequence stratigraphy, sequence stratigraphy framework of is established in this paper by comprehensively search of core, logging and 3-D seismic data. Zhalainuoer group in Cano Depression is divided into 5 3rd-order sequences: Sq1、Sq2、Sq3、Sq4、Sq5 from down to up. Based on the division and comparison of sequence formation, the sedimentary facies and the depositional system are proposed to study in the paper, and the main depositional systems are detailed explained. The distribution of these depositional systems is controlled by the sequence framework.
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