1) Composition ore-deawing
组合放矿
2) Combined cut-off grade ore drawing
组合截止品位放矿
1.
After studying on the different cut-off grades for ore drawing and relations among them, some new knowledge is got: that is, combined cut-off grade ore drawing includes all kinds of cut-off grade ore drawing.
通过对不同放矿截止品位及其相互间的关系进行研究 ,有了一些新的认识 :组合截止品位放矿方式 (形式、方案 )包括了一切截止品位放矿方式 ;根据放矿形式是不可避免的 ,组合截止品位放矿可能有许多方案 ,无贫化放矿仅仅是其中的一种特殊形式 ,组合截止品位放矿各种方案中有一种或者几种方案为最优 ,可使矿山生产总赢利为最大等等。
3) mineral assemblage
矿物组合
1.
Features of platinum-group elements in different mineral assemblages in the Lower Cambrian black rock series in Hunan and Guizhou;
湘黔下寒武统黑色岩系不同矿物组合中的铂族元素特征
2.
When carbonates are dissolved by hydrothermal fluids, some mineral assemblages, typical of hydrothermal genesis, would precipitate from the hydrothermal fluids.
塔里木盆地二叠纪时发生了强烈的岩浆-火山作用,与之相关的热液流体沿着断裂、裂缝以及不整合面活动,并与所经碳酸盐岩围岩发生反应,使围岩发生不同程度的溶蚀改造,主要表现在:1热液溶蚀和热褪色现象显著;2沉淀生成多种热液矿物组合,如萤石-石英组合、闪锌矿-绿泥石-方解石组合,重晶石-石英-黄铁矿-菱铁矿组合等;3热液作用区域碳酸盐岩成分发生了明显的变化,主要表现为Fe、Mn、Si等元素含量的升高,比正常灰岩高出几倍至几十倍。
3.
According to analysis of metallic mineral assemblage,compositions and fluid inclusions,it is concluded that the metallic minerals were mainly formed in a high sulfur fugacity and reduced environment.
进一步通过金属矿物组合及其成分分析和流体包裹研究,推断乌兰乌珠尔铜矿的金属矿物主要是在高硫逸度较还原环境下形成的,其形成作用可划分为锡石-多金属和黄铜矿-多金属两个成矿阶段。
4) mineral combination
矿物组合
1.
Based on directions of palaeo-flow, mineral combination characteristic and REE characteristic in Ordos Basin, directions of palaeo-flow of the early Yanchang Formation comes from circum to center, and five source directions can be found, which are northeast, east, south, southwest and northwest directions.
通过对鄂尔多斯盆地晚三叠世早期古水流方向及沉积物扩散方向、轻重矿物组合特征及稀土元素地球化学特征等的分析,发现延长组沉积早期古水流方向明显具有从湖盆四周向中心汇聚的特征,并可从轻重矿物组合上可以划分出5个物源方向,即东北、东、南、西南和西北方向,其中东北、西南和西北物源是主要物源方向。
2.
The northern Guangdong is the most important large concentration uranium area with granite,in the summary of the characteristics of general mineralogy 、mineral combination、occurrence and causes,and in the research of ulrichile with detecting in north of Guangdong,it found that ulrichile often symbiotic with the deputy minerals of magnetite、ilmenite、pyrite、monazite、apatite、Xenotime and so on.
粤北地区是中国花岗岩型铀矿最为重要的大型矿集区,在开展花岗岩型晶质铀矿的一般矿物学特征、矿物组合特点、产状及成因等方面进行综述的基础上,粤北石人嶂钨矿晶质铀矿的检测研究,发现晶质铀矿经常与磁铁矿、钛铁矿、黄铁矿、独居石、错石、磷灰石、磷钇矿等副矿物共生。
6) mineral association
矿物组合
1.
Besides sapphire, zircon and almandine are produced in Minxi, Fujian, which form gem mineral association.
除蓝宝石之外，该矿床还产有锆石，镁铝榴石，形成一个有一定规模的宝石矿物组合。
2.
The paper presents distribution of nepheline syenites and their tectonic settings, rock assembladges, mineral associations and geochemisical characteristics, discusses the relationship between the minerological characteristics of main minerals and their host rock.
介绍了中国霞石正长岩的分布、产出的大地构造环境、岩体的岩石组合、岩石的地球化学和造岩矿物组合特征。
补充资料：露天矿组合台阶
露天矿组合台阶
combined-bench of open-pit
}ut一onkuong Zuhe to一J一e露天矿组合台阶(eomblned一bene一of open-pit)将露天矿剥岩帮上若干个生产台阶组合在一起作为一个开采单元，进行轮流开采的一组台阶。它是露天矿陡帮开采工艺的一种作业方式。其开采程序是挖掘机自最上一个台阶逐个向下进行开采，采完该组最下一个台阶后，挖掘机再上到最上一个台阶进行下一个循环的采剥程序。组合台阶结构要素见图，其值的确定主要取决于矿体赋存条件、矿山规模、装备水平、新水平开沟位置、采剥推进方向等因素。中国南芬露天铁矿、德兴铜矿已应用组合台阶开采。美国和加拿大等国家均普遍采用。 (田泽英)一气………{…{… 组合台阶开采 内红阶高度寿全转北工作平台宽度‘}了工作平盘宽度 召，推进宽度。台阶坡面角冲工作帮坡角
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条