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用重矿物法、碎屑岩类法和地层厚度等微观和宏观方法分析了泌阳凹陷南部地层的物源和古水流。核二段时期泌阳凹陷主要受西北部社旗凸起、南部桐柏山,东北部伏牛山地形影响,其物源也形成了大致与地势相一致的趋势,即4个主物源区:西北部杜楼物源区,南部平氏物源区、杨桥物源区以及东北部孙岗物源区;2个次物源区:下二门物源和梨树洼物源。
The source rocks and ancient water flow in the southern Biyang sag are analyzed by means of micro-minerals and macroscopic methods such as heavy mineral method, clastic rock method and stratum thickness. During the second period of Bi nuclear depression, the Biyang sag is mainly affected by the flag of Northwestern China, the Tongbai Mountain in the south, and the Funiu Mountain terrain in northeastern China. The provenance of the Biyang sag is also consistent with that of the terrain, namely, four main source areas: Department of Du Lou source areas, the southern source of Ping District, Yangqiao source area and the northeast Sun source area; 2 times the source area: the next two source and pear source.