It can be concluded that: First,primary deposit and placer deposit are two main deposits in this origin;Second,the primary deposit formed at hydrothermal stage and mesothermal stage between Presinian and Cretaceous;Third,the feature of ore body is wide and scattered on distributing,small on scale;Four,the storage capacity of the crystal is very abundant,its quality is fine,depth of burial is s.
通过对江苏东海区域成矿地质条件以及含晶石英脉成群成带分布规律的研究,得出以下结论:①该区水晶矿床为原生矿、砂矿两种类型;②水晶原生矿形成于前震旦纪以后到白垩纪以前的高、中温热液期;③矿体具分布广、规模小、分布散等特点;④东海水晶储量丰富、品位极高、埋藏浅,具有很好的开发利用前景。
Based on recent results and new data,we summarize and study distributions and divisions of placer deposits and ferromanganese nodules/crusts in the sea areas of China.
综述和研究了我国海域砂矿资源和(微)结核—结壳的分布及其区划。
This paper expounds the basic points for saving and managing sand placer during coating decoration by introducing the factors leading to waste sand placer,the causes for increasing or decreasing of using amount of sand placer in ship repair,some basic data and a method for calculating the using amount.
简要介绍了修船作业中导致矿砂浪费的若干因素 ,具体分析了修船作业时 ,一些工程用砂量增减的原因 ,提供了一些基础数据和一种计算用砂量的方法 ,比较详尽的阐述了修船涂装作业中矿砂的节约和管理的基本着眼
A deposit of gold ore in an old riverbed.
富金砂矿古河床里的金砂矿床
Study on Concentration Experiment of Silica Sand from Hainan Province
海南某石英砂矿的选矿提纯试验研究
A place where a placer deposit is washed to extract its mineral content.
砂矿开采地一个用来清洗出有用矿物的砂矿开采地
Tin ore, copper, zinc mine, iron ore, snake bite mine, silica, sand and gravel sales.
锡矿、铜矿、锌矿、铁矿、蛇纹矿、硅石、砂石购销。
sluice ore,ie to separate it from gravel,etc
冲洗矿砂（使之与砂砾等分开）
the content of silver in a ton of ore
一吨矿砂中银的含量
bulge ore-and RoRo carrier
散货、矿砂、滚装三用船
Intergovernmental Group of Experts on Iron Ore
政府间铁矿砂专家组
orebulkoil carrier
矿砂散装石油多用船
oil bulk ore carrier
石油-散货-矿砂运输船
oil bulk ore ship
石油散货矿砂运输船
abstract metal from ore
从矿砂中提取金属.
General Design of 400000 DWT VLOC
400000DWT矿砂船总体设计浅谈
Study on Cation- exchange Capacity of Core from Sandstone Uranium Deposits
砂岩铀矿层矿石阳离子交换容量研究
Mineral Characterize and Synthetic Utilization of Tantalum and Niobium Tail Sand
钽铌矿尾砂的矿物特征及其综合利用
Exploration orientation of leachable sandstone type uranium deposit in Erlian basin
二连盆地可地浸砂岩型铀矿找矿方向
Characteristics of sandstone copper ores in Tianlu copper deposit
北祁连天鹿铜矿床砂岩型铜矿石特征
FORMING CONDITIONS SANDSTONE-TYPE URANIUM DEPOSITS IN TUOSITE DEPRESSION
托斯特凹陷砂岩型铀矿成矿条件研究