CORRELATIONS BETWEEN MACERALS AND PALEOSPOROPOLLEN TYPES WITHIN COAL SEAM IN HUANGLONG COALFIELD
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摘要: 对陕西黄隗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存在相关关系。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树蕨植物形成,而具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。Abstract: The 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 analyzed the 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 conoluded that these correlations account for the correla- tions 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 eflect the vegetation features in peat-forming swamp.
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Keywords:
- macerals /
- palynology /
- coal-forming material /
- correlation analysis
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