从神木煤田2^（－2）煤层煤岩特征看泥炭沼泽演化  

APPROACH THE EVOLUTION OF PEAT SWAMP FROM THE PETROGRAPHIC CHARACTERISTICS OF COAL 2 -2 IN SHENMU COALFIELD

作　　者：周春光[1] 杨起[1] 康西栋 

机构地区：[1]中国地质大学

出　　处：《煤田地质与勘探》1996年第6期9-12,共4页Coal Geology & Exploration

摘　　要：在研究神木煤田２－２煤层煤岩特征的基础上，划分了三种泥炭沼泽类型，即开阔水体草本沼泽、陆地森林沼泽和潮湿森林沼泽。泥炭沼泽由三角洲平原上的浅水湖泊演化而来并经历了三个演化阶段。成煤植物早期以草本为主，中期和后期以木本为主。森林火灾和洪泛事件在中期最为频繁。On the basis of study on the petrographic characteristics of coal 2 -2 in Shenmu Coalfield,three types of peat swamp are recognized,i.e.,open herb swamp,terrestrial forest swamp and wet forest swamp.peat swamp was evolved from the shallow lake on delta plain and had involved three evolutional stages.Herb was the main coal forming plant at the early stage,but arborescent vegetation was dominant at both the middle and late stages.Forest fire and flooding events frequently occurred at the middle stage.

关 键 词：煤田 煤层 煤岩 泥煤 沼泽演化 

分 类 号：P618.110.2[天文地球—矿床学] P618.117[天文地球—地质学]