Geochemistry,petrology,and palynology of the Princess No.3 coal,Greenup County,Kentucky

来源 :国际煤炭科学技术学报(英文) | 被引量 : 0次 | 上传用户:nnhdceh986532
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
The high volatile C bituminous-rank,Bolsovian-age Princess No.3 coal,a correlative of the heavily-mined Hazard No.7 coal and the Peach Orchard and Coalburg Lower Split coals,was investigated three sites at a mine in Greenup County,Kentucky.The coal exhibits a “dulling upwards” trend,with decreasing vitrinite and a greater tendency towards dull clarain and bone lithotypes towards the top of the coal.The relatively vitrinite-rich basal lithotype is marked by a dominance of lycopod tree spores.The palynology transitions upwards to a middle parting co-dominated by tree fern and small lycopod spores and an upper bench dominated by tree ferns with contributions from small ferns,cordaites,and calamites.The lithotypes generally have a moderate-to high-S content with a variable ash yield.Sulfur,Fe2O3,and certain siderophile elements are highest near the top of the coal.As observed in other coals,uranium and Ge are enriched at the top and bottom margins of the coal.The rare earth chemistry at the top of the coal has a significantly lighter distribution(higher LREE/HREE)than at the base of the coal.
其他文献
在动高压加载实验中,从实验测量的粒子速度剖面到应力应变曲线以及弹塑性本构关系等,都离不开原位粒子速度剖面的获取.一般通过在测量位置(拉氏位置)处直接进行阻抗匹配(增量
会议
会议
近日,山东省将省属威海港等6个港口正式下放地方管理。 Recently, Shandong Province, the provincial Weihai port formally delegated 6 ports of local management.
随着能源需求的不断增加和化石燃料的持续消耗,提高传统能源利用效率和拓展新能源实用范围的问题曰益凸显.储能电容器具有储能密度高、充放电速度快、抗循环老化、适用于高温
请下载后查看,本文暂不支持在线获取查看简介。 Please download to view, this article does not support online access to view profile.
广发证券有限责任公司:你公司《关于请求审核批准我司股权转让事宜的申请报告》(广发证[1999]87号)、《关于广发证券有限责任公司增资改制的申请报告》(广发证[1999]88号)及
会议
会议