In lamina of shale which deposited in deep lake away from paleo-debouchment in the Shahejie Formation in the Jiyang Depression, some aeolian silty sand was discovered.
在济阳坳陷沙河街组远离古河口沉积的页岩纹层中发现了风成粉砂沉积。
And since then there are several aeolian sand units in loess.
9 Ma)以来粒度突然变粗并且地层中共发育了11层厚度较大的埋藏古风成砂,研究区远离沙漠,黄土中的砂粒及风成砂是近源搬运造成的,其中黄河河漫滩是其砂粒的主要供给源。
Cretaceous eolian sandstones in the Kuqa basin on the northern margin of the Tarim basin: A case study of the Kuqa River section;
塔里木盆地北缘库车盆地白垩系风成砂岩研究——以库车河剖面为例
RESEARCH ON MINERALIZATION ENVIRONMENT AND MODEL OF LITTORAL PLACER GOLD ALONG YELLOW SEA COAST IN LIAODONG PENINSULA
辽东半岛黄海沿岸滨海砂金成矿环境及成矿模式探讨
A deposit of gold ore in an old riverbed.
富金砂矿古河床里的金砂矿床
abstract metal from ore
从矿砂中提取金属.
Among them, the gold-arsenomarcasite-quartz stage and the gold-stylotyp-polymetallic sulfide stage are the major gold-forming stages.
其中,金毒砂石英阶段和金黝铜矿多金属硫化物阶段为主要金成矿阶段。
STUDY ON GEOTECTONICS AND GOLD METALLOGENY OF WEST SARAWAK, EAST MALAYSIA
马来西亚西砂捞越地区大地构造与金成矿学研究
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
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
Mineralization intensity of a placer gold source area is a geological parameter newly put forwardfor gold mineralization.
砂金矿源区金矿化强度()新提出来的一个金矿化地质参数.
He wants to determine what metals are present in the ore.
他要测定矿砂中有什么金属存在。
Status of China s metal ores foreign trade and strategy of importation;
我国金属矿砂贸易状况及其进口策略
Material, such as gravel or slag, from which metal is extracted in mining.
矿渣诸如砂砾或矿渣等物质，可从中提取金属
COMPREHENSIVE UTILIZATION OFTAILINGS FROM THE GOLD PLACERCONCEN TRATORS LOCATED IN THEYUEHE RIVER BASIN,SOUTH SHANXI
陕南月河流域砂金矿选厂尾矿的综合利用
Study on synthetical recovery of tailing from the cleaning mill of placer gold at Yang-Ping-Guan
阳平关砂金矿精选厂尾矿综合回收的研究
Study on the Typomorphic Characteristics of Arsenopyrite and Pyrite of Bake Gold Deposit in Jinping, East Guizhou
黔东锦屏八克金矿毒砂和黄铁矿标型特征研究
Mineralogy of arsenian pyrites and arsenopyrites of Carlin-type gold deposits in Yunnan-Guizhou-Guangxi "golden triangle" area, southwestern China
滇黔桂“金三角”卡林型金矿含砷黄铁矿和毒砂的矿物学研究
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
artificial water-channel,esp where gold-miners rinse gold out of sand and dirt
人工水道;（尤指金矿工人用以冲洗金砂的）
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