摘要
中国泥盆纪煤是形成于特定地质历史条件的特种煤,因而具有独特的地球化学特征:显微组成以富含角质体为特征;可溶有机质含量高于泥岩,低于正常腐植煤;芳烃中含丰富的多环芳烃,并检测出芳香倍半萜和芳香二萜及芳香断藿烷;热模拟表明角质体在Ro达到0.95%时达到生烃高峰;丰富的四环二萜化合物随成熟度增加,由环状化合物裂解为链状烷烃。
Chinese Devonian coal is a special kind of coal formed under a given geohistorical condition, with the result of particular geochemical characteristics. Its maceral is specified by rich cutinite; soluble organic matter content higher than it is in mudstones, but lower than in normal humic coal; abundant muhiring hydrocarbon in aromatic hydrocarbon, and aromatic sesquiterpene, aromatic diterpene and aromatic stopped hopane were detected; heat simulation indicated that the peak of hydrocarbon generation is when Ro reached to 0.95%; abundant tetracyclic diterpane compounds increasing along with the maturity, splitting from cyclic compounds into paraffinic hydrocarbons.
出处
《中国煤田地质》
2006年第5期7-10,24,共5页
Coal Geology of China
关键词
角质残植煤
地球化学
热模拟
生物标志物
泥盆纪
cuticle
geochemistry
heat simulation
biological indicator
Devonian Period
