This was the result from the large-scale regression in the Late Ordovician.

Marine volcanics of Early Ordovician was found in Zhifang region.

摘要纸房地区具有早奥陶世海相火山岩存在.

The Tahe reservoir Ordovician carbonate rock belongs to the type reservoir that this is special.

塔河油田奥陶系碳酸盐岩属于该特殊类型油藏.

Study shows that the Ordovician carbonate formation in this area characteristic of very low groundmass porosity.

明确了研究区奥陶系储层为超低基质孔的致密碳酸盐岩,岩溶作用为本区储层发育的主控因素.

NOTES ON THE GENUS REEDOCALYMENE KOBAYASHI, 1951 ( TRILOBITA, ORDOVICIAN )

论奥陶纪三叶虫属ReedocalymeneKobayashi, 1951 ( 英文 )

The main reservoir types in Ordovician carbonate formation in Tahe Oilfield are dissolution fractures and caves.

塔河油田奥陶系碳酸盐岩地层的主要储集空间为溶蚀缝、洞.

The Cambrian and Ordovician are important exploration target strata in Leshan-Longnvsi paleo-uplift area.

寒武系和奥陶系是四川盆地乐山 — 龙女寺古隆起区的重要勘探目的层系.

The Lower Ordovician in Tazhong area is dominated by marine carbonate.

塔里木盆地塔中地区下奥陶统主要为一套海相碳酸盐岩.

The main water source is fracture-karst water in Middle Ordovician carbonate rocks.

主要的供水水源为中奥陶统碳酸盐类岩石中的裂隙 - 喀斯特水.

The Ordovician lithofacies and biofacies change greatly at different localities of the Yangtze Region, South China.

华南扬子区不同地点奥陶纪的岩相 、 生物相变化显著.

There is abundant karst fissure water in the limestone and dolomite of Cambrian and Ordovician.

寒武系、奥陶系地层主要为灰岩和白云岩,其间赋存有较丰富的岩溶裂隙水.

The ore assays high in gold.

这矿石经分析证明含金量很高.

Xiangshan Uranium ore field is a famous Volcanic type hydrothermal uranium ore field.

相山铀矿田是我国著名的火山岩型热液铀矿田.

...a huge iron ore mine.

巨大的铁矿山

iron ore

铁矿石

Ore spotting and pIt'supervision, to minimize ore loss and dilution.

测定矿石点位,监督矿坑工作, 将矿石损失和贫化降低到最小程度.

They refined gold out of the ore.

他们从矿石中提炼出黄金.

The phase constituents ofthe slag added with manganese ore or spar and quartz sand are analysed.

对配加锰矿、萤石、石英砂的渣进行了相成分分析.

The molybdenum ore , is in Heman provinces, is in the altered rock cataclastic and veinlet belt.

河南某钼矿属蚀变破碎带——细脉带型钼矿床.

veins of rich ore

富矿脉

There seems no ideal method to mine medium grade, gentle dip and medium thickness orebody.

对于矿石价值中等、品位中等的缓倾斜中厚矿体,目前无理想的采矿方法.