查询词典 metallogenic

Previously, the metallogenic epoch of the deposit was indirectly deduced by the ages of such nearby granitic rocks as granite porphyry and quartz porphyry or altered minerals.

其成矿时代以往都是用矿体附近的花岗质岩石或蚀变矿物年龄来间接推断的。

Combined with related rare earth element and trace element geochemistry of Huangshaping granites and ore-bearing skarn, it is concluded in this paper that the age of 154 Ma should represent the metallogenic epoch of the deposit, and that there existed a close relationship between the ore-forming process of the deposit and the granite porphyry, which were both formed during the peak stage of Early Yanshanian large-scale rock-forming and ore-forming activities in South China.

结合黄沙坪岩体及含矿硅卡岩型矿体的稀土及微量元素地球化学特征，得出以下认识：该矿床的成矿年龄在154Ma左右；成矿作用与花岗斑岩关系密切，它们都是华南燕山早期大规模成岩成矿作用高峰期的产物。

The metallogenic epoch of the deposit was indirectly deduced by the ages of such nearby granitic rocks as granite porphyry and quartz porphyry or altered minerals.

其成矿时代以往都是用矿体附近的花岗质岩石或蚀变矿物年龄来间接推断的。

In Nanling Mountain area, a very important metallogenic province of China, the various granitic rocks with different ages are widely distributed.

南岭地区广泛发育的不同时代的各种花岗岩类是古老基底(1200—1800Ma)活化重熔的产物。

The Maoping tungsten-tin deposit is located in the eastern section of Nanling metallogenic belt, the Chongyi-Dayu-Shangyou tungsten polymetallic ore concentration area and at the front part of the Tianmenshan rock mass extension with a north trend. Greisen and the quartz vein are the main tungsten-tin mineralization types in the mine area.

茅坪钨锡矿床位于南岭成矿带东段，位于崇－余－犹钨多金属矿矿集区西华山－杨眉寺区段中北部的天门山－红桃岭矿田，为天门山岩体向北倾伏延伸的前锋部位；矿区钨锡矿化类型主要有云英岩型和石英脉型两种。

Water-rock interaction demonstrates that, a gold-boring formation , i. e., a set of light metamorphic clastic gritstone, sandy slate, and tuffaceous slate in Wuqiang Runnel Formation, Ban Stream Group, act as the source of gold deposits in South-West Hunan. The gold is originally derived from volcanic eruption materials in Wuling-Xuefeng period; for the typical single gold deposit such as Mobin, which is short of sulphide, chlorine is very important in the metallogenic process; sulphur and chlorine perform as the major negative ions to form complex ions with Au throughout the gold activation and migration movement. The complex ion of chlorine and gold may keep stable in a wide range of temperature; the physical-chemical conditions in typical geothermal fluid system are of deciding significance for gold activation, migration and precipitation.

特定体系的水岩实验证实了漠滨及整个湘西南金矿的成矿元素Au和伴生元素主要源于赋矿围岩-板溪群五强溪组的一套浅变质碎屑砂岩、砂质板岩和凝灰质板岩；首次突破传统认识，证明氯在中低温热液体系中能与Au形成稳定络合物的形式进行运移，因此氯在本区Au成矿过程中起着相当重要的作用；成矿热液流体中Au主要以金硫、金氯络合物形式在溶液中迁移，阴离子∑S、Cl〓对金的活化、迁移及沉淀起主导作用，Au的伴生元素As、Sb在热液体系中与Au形成金锑、金砷络合物有利于金的进一步活化、迁移及沉淀；中低温热液流体成矿过程中，体系的物理化学参数对Au的活化、迁移及沉淀富集起决定性作用。

In addition, the former under Sinian Bikou Sinian subgroups and the subgroups Bikou metallogenic belt in the wider region, there is uranium, manganese, iron, cobalt, sulfur, nickel, coal, phosphate, crystal stone, Iceland spar, witherite, marble, limestone and so on, the development of industrial raw materials, excellent conditions for the processing industry.

此外，在前震旦系碧口下亚群和震旦系碧口上亚群成矿带广大区域内，有铀、锰、铁、钴、硫、镍、煤、磷、水晶石、冰洲石、毒重石、大理石、石灰石等，发展原料工业、加工工业条件优越。

The southwestern Yangtze massif is an important part of the low-temperature metallogenic domain in southwestern China.

扬子地块西南缘是中国西南大面积低温成矿域的重要组成部分。

In Mesozoic, large-scale metallogeny took place in South China, which was called "Mesozoic metallogenic explosion".

文章在总结大量前人资料的基础上，提出华南地区中生代发生了3次大规模成矿作用，且都在燕山期。

The metallogenetic age is later than it is in Eastern Qinling porphyry-type Mo metallogenic belt.

成矿时代从整体上要晚于东秦岭华北克拉通南缘的斑岩型钼成矿带。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。