Grainstones are the main part of the section, among which the oolites, intraclast limestones and most bioclast limestones are cemented by sparry calcite.
颗粒在剖面中占绝大多数,其中,鲕粒、碎屑和多数生物碎屑均为亮晶方解石胶结。
Grainstones are the main part of the section, among which the oolites, intraclast limestones and most bioclast limestones are cemented by sparry calcite.
颗粒在剖面中占绝大多数,其中,鲕粒、碎屑和多数生物碎屑均为亮晶方解石胶结。
The paper has discussed the sedimentary characteristics of primary coal-bearing strata in the region, These are the following, oolites, nodules, bedding, rock and mineral, paleontologic and coaly.
通过对昌福矿区主要含煤地层的沉积特征,即鲕粒、结核、层理、矿、古生物及煤析,总结出昌福矿区童子组第三段上亚段地层的沉积环境为:3号煤层为河控三角洲相沉积;
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