摘要
通过对红沙梁东井田下白垩统老树窝群含煤地层展布规律的研究,结合区域构造及沉积环境等方面进行综合分析,结果表明:含煤地层呈现为一个小型煤盆地形态,其含煤性呈中西部好,向四周逐渐变差的趋势;含煤地层沉积环境主要有扇三角洲、湖泊、湖泊三角洲,其间的三角洲平原泥炭沼泽与滨湖沼泽环境为全区的有利成煤环境,形成了区内的4层可采煤层。
Through the study of the distribution of Laoshuwo group coal-bearing stratum of Lower Cretaceous in Hongshaliangdong minefield,combined with the comprehensive analysis of regional structure and sedimentary environment,the results showed that the coal-bearing stratum reveals a small coal basin.The coal-bearing property of central and western area is good,however,become worse gradually around.The sedimentary environment mainly included fan delta,lake and lake delta.Thedelta plain bogs and lakefront bogs developed during this period were the main sites for coal formation,during which formed four minable seams.
作者
王普
仲乃亮
WANG Pu;ZHONG Nailiang(Gansu Provincial Coal Geological Exploration Institute,Lanzhou 730000,China)
出处
《煤炭技术》
CAS
2025年第1期108-110,共3页
Coal Technology
基金
甘肃省地质勘查基金项目(202003-M02)。
关键词
含煤地层
下白垩统
沉积环境
红沙梁东井田
coal-bearing stratum
Lower Cretaceous
sedimentary environment
Hongshaliangdong mine field
