DISTRIBUTION AND GEOCHEMICAL CHARACTERISTICS OF PERMIAN SOURCE ROCKS IN THE SOUTHERN NORTH-CHINA
DISTRIBUTION AND GEOCHEMICAL CHARACTERISTICS OF PERMIAN SOURCE ROCKS IN THE SOUTHERN NORTH-CHINA
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发表时间：
2011
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通讯作者：
Liao Jing
中科院分区：
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作者：
Liao Jing
北中国南段二叠系太原组、山西组、下、上石盒子组沉积中煤系烃源岩发育，其丰度、类型和成熟度表明，含煤泥岩是主要的有效烃源岩。太原组、山西组、下石盒子组有机质丰度均较高，基质类型为Ⅲ型(腐殖型)，Ⅱ2型(腐泥型)较少。下二叠统有机质已成熟甚至过成熟，而上二叠统有机质未成熟或刚刚成熟。该区上二叠统生烃潜力大。
The coal prone source rocks are well developed in Southern North China in the Permian deposits of Taiyuan Formation,Shanxi Formation,and Lower and Upper Shihezi Formations.The abundance,type and maturity of source rocks indicate that coal measure bearing mudstone is the main effective source rock.The Taiyuan Formation,Shanxi Formation,and Lower Shihezi Formation are all high in the abundance of organic matters,of which the matrix belongs to the type III(humic type) with little of typeⅡ2(sapropelic-humic type).The Lower Permian organic matters are matured or even over matured,but Upper Permian ones non-matured or just matured.Therefore,the Upper Permian in this region is high in hydrocarbon generation potential.