本文選題：海拉爾盆地 + 下白堊統(tǒng)��； 參考：《煤田地質(zhì)與勘探》2017年01期

【摘要】：對內(nèi)蒙古海拉爾盆地早白堊世含煤巖系的沉積充填序列、層序地層及聚煤規(guī)律進(jìn)行研究,將扎賚諾爾群劃分為6個3級層序及相應(yīng)的體系域,6個層序分別對應(yīng)于銅缽廟組、南屯組一段、南屯組二段、大磨拐河組一段、大磨拐河組二段和伊敏組,煤層主要發(fā)育在層序Ⅲ、Ⅵ的湖侵體系域;且煤層在層序格架內(nèi)部,從辮狀河沖積平原 上三角洲平原 下三角洲平原 湖泊環(huán)境,呈現(xiàn)有規(guī)律的變化。通過對層序Ⅲ、Ⅵ中各主采煤層的底部砂體厚度、煤層厚度及成煤期的古地理環(huán)境詳細(xì)分析,概括出層序Ⅲ的主要成煤環(huán)境為湖泊周緣扇(辮狀河)三角洲平原和湖濱帶;層序Ⅳ主要聚煤環(huán)境為扇前、扇間淺水湖盆和淺水湖泊大面積淤積而成的泥炭沼澤。
[Abstract]:The sedimentary filling sequence, sequence stratigraphy and coal accumulation regularity of the early Cretaceous coal-bearing rock series in Hailaer Basin, Inner Mongolia were studied. The first member of the Nantun formation, the second member of the Nantun formation, the first member of the Damoguahe formation, the second member of the Damoguahe formation and the Yimin formation, the coal beds are mainly developed in the lacustrine transgression system tracts of sequence 鈪，

本文編號：2008895