摘要
本文通过地质、有机地球化学等综合方法(沥青“A”抽提、热解模拟、气相色谱、红外光谱、X—衍射、电子顺磁共振等)研究了五牧场矿区大磨拐组煤系中连续变质系列的褐煤——瘦煤。查出煤等有机岩具有Ⅱ型干酪根的富H特征,提出在岩浆热力作用下,有机质的化学成分超前于结构成熟,指出本区应注意油、气的找寻。
A series of continuous metamorphism from brown to lean coal in the coal measures of Dameguai formation of Wumuchang coal district is studied by methods of geology and organic geochemistry (extraction of bitumen 'A'; thermal modelling; gas chromatography; infrared spectrum: X diffraction; electron microscope; paramagnetic resonance etc.)It is found that the organic rock such as coal etc. in this area has the characteristic of rich-hydrogen of type n kerogen. The authors show that under the action of magmatic thermalism the maturation of organic texture was preceded by its chemical composition maturation, and hence the discovery of oil and gas should be noted in this area.
出处
《中国矿业大学学报》
EI
CAS
CSCD
北大核心
1989年第2期42-52,共11页
Journal of China University of Mining & Technology
关键词
煤
岩浆热力作用
超前成熟
magmatic thermalism, Pre-maturation, rich-hydrogen, typeII kerogen.