黄陇煤田煤中显微组分与孢粉类型的相关趋势

CORRELATIONS BETWEEN MACERALS AND PALEOSPOROPOLLEN TYPES WITHIN COAL SEAM IN HUANGLONG COALFIELD

对陕西黄陇煤田中下侏罗世延安组４号煤进行了煤岩学和孢粉学的详细定量分析，并用计算机对显微组分与孢粉类型之间的的关系作了相关分析，结果表明，煤中显微组分与孢粉类型之间在在相关关采、这种相关关系反映了显微组分的形成与成煤植物之间存在着成因上的联系，即煤中基质状和碎屑状显微组分主要由草本植物和材蕨植物形成，而其细胞结构和条带状的显微组分主要由木本裸子植物形成，，这两种类型显微组分的比值可以反映成煤植被特征。

he authors have cualitatively determined maceral and paleosporopollen components under microscopy in No. 4 inertinite-rich coal seam in Huanglong coalfield of Shaanxi province by means of coal petrology and palynology,and analyzedthe relations between macerals and paleosporopollen types in the method of correlation analysis. The results show that there are correlations between macerals and Paleosporopollen types. It is concluded that these correlations account for the correlations between maceral origin and its coal-forming plants,that is,groundmass and detrital macerals in coal were mainly formed from herbaceous and tree pteridophyta plants,and cellar and banded macerals in coal from woody plants. The ratio of these two types of maceral components can renect the vegetation features in peat-forcing swamp