贺兰山南段新井盆地煤炭沉积环境与聚煤作用分析

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英文篇名：Analysis on coal sedimentation environment and coal accumulation in Xinjing Basin of southern Helan Mountain 作者：刘向东 ; 魏向成 英文作者：LIU Xiangdong;WEI Xiangcheng;Ningxia Mineral Institute of Geological Survey; 关键词：新井盆地 ; 沉积环境 ; 聚煤作用 英文关键词：Xinjing Basin;;sedimentary environment;;coal accumulation 中文刊名：NXGJ 英文刊名：Ningxia Engineering Technology 机构：宁夏回族自治区矿产地质调查院; 出版日期：2017-12-15 出版单位：宁夏工程技术 年：2017 期：v.16;No.68 语种：中文; 页：NXGJ201704007 页数：3 CN：04 ISSN：64-1047/N 分类号：36-38

摘要

在野外地表观察描述和深部钻探取心编录研究的基础上,对贺兰山南段新井盆地煤炭沉积环境与聚煤作用进行分析。结果发现,新井盆地含煤地层主要是下—中侏罗统延安组,在沉积环境上属冲积扇-河流相环境体系;含煤地层受古构造、古地理等多种因素的影响和控制,在山麓沉积与曲流河沉积带之间形成了盆地内工业煤层和富煤中心。
        Based on the study of field surface observation and deep borehole compaction, a brief analysis of the coal depositional environment and coal accumulation in the Xinjing Basin of the southern Helan Mountain Basin was carried out. The coal-bearing strata in the Xinjing Basin are mainly distributed in the middle-lower Jurassic Yan 'an Formation, which is an alluvial fan-river face system in the sedimentary environment. The coal-bearing strata are influenced and controlled by various factors such as paleo-tectonics and palaeogeography. Between the foothills and the sedimentary belt of the meandering river,the industrial coal seam and the rich coal center are formed in the basin.

引文

[1]陈钟惠.含煤岩系沉积环境分析[M].北京:地质出版社,1984:62-63.