平顶山煤田十三矿二_1煤层厚度特征及山西组聚煤规律探讨  

A Discussion on Ⅱ_1 Coal Seam Thickness Features and Shanxi Formation Coal Accumulation Pattern in No.13 Coalmine,Pingdingshan Coalfield

作　　者：李惠杰[1] 张云中[1] 胡盛[1] 李建欣[1] 

机构地区：[1]河南省煤田地质局四队,河南平顶山467000

出　　处：《中国煤炭地质》2011年第8期28-31,37,共5页Coal Geology of China

基　　金：国土资源大调查(1212010633901);国家科技重大专项(2011ZX05009-002)项目共同资助

摘　　要：通过对平顶山煤田十三矿二1煤层厚度特征及沉积环境等相关资料的整理、分析,认为二1煤厚度大、煤质好,但区内中部出现较大范围的分叉区,表现为煤层厚度变薄直至尖灭,其分叉型式属二分式。根据二1煤层的形成机制及其变化规律认为,影响厚度变化的主要因素为原生沉积环境,后期构造及大占砂岩的冲刷影响仅限于局部。该研究对矿井生产具有一定的指导意义。Based on the II1 coal seam thickness features,sedimentary environment and related data sorting and analysis in the No.13 coalmine,Pingdingshan coalfield,considered that II1 coal seam has large thickness and excellent coal quality.But because of rather large bifurcating area in the middle part,appears as coal seam thinning even pinch out,and bifurcating type is dichotomous.According to II1 coal seam formation mechanism and variation pattern considered that main thickness impacting factors have protogenic sedimentary environment,succeeding structures and local Dazhan sandstone scouring.The study has certain guiding significance to coalmine production.

关 键 词：二1煤层 沉积环境 厚度特征 山西组聚煤规律 平顶山煤田十三矿 

分 类 号：P618.11[天文地球—矿床学]