南华北地区太原组煤中稳定组显微组分的研究

对南华北地区晚石炭世太原组煤中稳定组分作了详细的镜下鉴定和定量测试,发现太原组煤中稳定组分齐全,特征明显,不但含有相当数量的藻类体、沥青质体和渗出沥青体,面且还鉴定出一种新的稳定组分(未定名)。研究结果表明,沥青质体具双重来源;渗出沥青体和荧光质体属次生显微组分,是煤生烃排烃的煤岩学标志,并可能代表了初次运移出的重质和轻质烃类组分。富氢的稳定组显微组分虽然含量不多,但有迹象表明,它们对较强还原型腐殖煤的生烃排烃做出了应有的贡献。

A study on liptinite macerals of Taiyuan formation coal in the south of North China

This paper presents the detailed determination under the microscope and quantitative measurement, by means of conbination of reflected white light and fluorescence,of the liptinite mac-erals of Taiyuan Formation (Upper Carboniferous) coal in the south of North China. It is discovered that the liptinite macerals in Taiyuan Formation coal are complete in variety and unique in characteristics. Moreover,a new liptinite maceral (not named yet)is also found in addition to the discovery of a considerable amount of alginite,bituminite and exudatinite. The study results show that the bituminite is of two origins. The exudatinite and fluorinite are both secondary macerals, representing a petrographic mark of coal hydrocarbon generation and expulsion and possibly representing respectively the heavy and light components of hydrocarbons resulted from the primary migration. The liptinite macerals of rich hydrogen are not much,but there are indications that they have made a contribution to the hydrocarbon generation and expulsion of stronger reducible type of humic coal.