Simulation Experiments on Solar Pond Crystallization of Carbonate-type Saline Lake Brine Fault Slope-Break Zone and Its Control over Structural Lithostratigraphic Traps of Lowstand System Tracts in Southeast Panyu Uplift of the Pearl River Mouth Basin
详细信息   
摘要
The Panyu Uplift is an important oil and gas-bearing district in central south Pearl River Mouth Basin.  A series of northwest and east-west striking syndepositional faults were developed during Neogene, and their development and distribution controlled the paleo-structural framework and the sedimentary filling pattern.  The main syndepositional faults along the southeastern and northeastern margins of the ancient uplift formed obvious geo-morphologic abrupt zones or fault slope-break zones.  The main controlling faults in the southeastern part were formed by the antithetic faults in the hinge gentle slope which were developed during synrifting and formed the boundary between Panyu Uplift and Baiyun deep sag.  An analysis of seismic facies and seismic attributes has shown that the lowstand system tract deltaic sandstones in the middle-lower part of Zhuhai and Zhujiang Formations were developed and distributed along the low slope of the fault slope-break zone.  Researches indicate that the low slope lowstand system tracts along the fault slope-break zone constitute a favorable condition for the formation of lithostratigraphic or structural-stratigraphic traps.  This study hence has offered an important basis for the recent exploration breakthrough in this area.

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