alluvial placer是什么意思

网络释义

用法例句

A glacial or alluvial deposit of sand or gravel containing eroded particles of valuable minerals.

砂矿，砂积矿床一种砂砾或碎石的冰河沉积物或冲积沉积物，包括有价值的矿物成份

Figure 16-20 shows the good correlation observed between the magnetic field and the gold values over a muck-covered placer in this area.

图16-20表明了此地区腐殖土覆盖下砂积矿床上面的磁场和含金量之间的良好对比关系。

A deposit of gold ore in an old riverbed.

富金砂矿古河床里的金砂矿床

Many minerals are found in alluvial deposits of sand, clay, or gravel. They have been carried along and then laid down by flowing water.

许多矿物都是在砂土、泥土或砾石冲积矿床中发现的。这些矿物被流水搬运并随之沉积下来。

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

THE MINERALIZATION LAWS OF THE ALLUVIAL GOLD PLACERS AT ALTAI MOUNTAIN

阿尔泰山冲积型砂金矿的砂金富集规律

Numerical Simulation of Mine Tailing Dam-Break Considering Sediment Deposition

考虑矿砂淤积的尾矿坝溃坝洪水数值模拟

The uranium deposits are obscured by sand, peat and glacial drift.

铀矿床被砂子，泥炭和冰碛物所覆盖。

Roll deposits cut across sandstone bedding.

卷型矿床切穿砂岩的层理。

Mechanized placer mining, with special devices for washing and separating waste from valuable minerals, is used in productive alluvial deposits.

机械化砂矿开采用于含矿量丰富的砂矿床．利用专门设备来淘洗、分离废物与有用矿物。

To wash gravel, sand, or other sediment in a pan.

淘金在淘金盆中冲洗矿砂、沙子或其他沉积物

Placer mining: Oldest method of recovering gold from alluvial deposits.

砂矿开采:从冲积层回收黄金的最古老方法。

volume extraction ratio

矿床总体积和采空区总体积之比

Metallogenic Regularity and Prospecting Direction of Hotwater Sedimntary Deposits, Guangxi, China;

广西热水沉积矿床成矿规律及找矿方向研究

Therefore, the author considers the deposit to be a sedimentary-transform type of celestine.

认为本矿床应届沉积——改造类型的天青石矿床。

THE DEPOSITIONAL FEATURE OF NEOZOIC′BASINS IN THE WESTERN YUNNAN PROVINCE AND THE MINEROTGENETIC CONDITIONS OF SANDSTONE- TYPE URANIUM DEPOSITS

滇西新生代盆地沉积特征及砂岩型铀矿成矿条件

A study on sedimentary facies of the Neogene and exploration prospective of sandstone-type uranium deposits in eastern Chaidam Basin

柴达木盆地东部新近系沉积相与砂岩型铀矿找矿方向

the structures after sedimenting control the space location of ore storage sandbody,thesupplying source of copper element and the forming of ore bodies;

沉积后的构造决定了储矿砂体的空间位置、铜质来源和矿体的形成；