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The neotectonic period is the principal metallogenic period of the laterite gold deposits. 新构造运动期是云南红土型金矿的重要成矿期。
The metallogenic period of epithermal gold deposit is predominantly controlled by the tectonic evolution. 浅成低温热液型金矿床的形成时代受其所处大地构造环境演化的控制。
The veins distribute equidistantly,vary in the widths and commonly insect ore veins,indicating that they formed during the metallogenic period. 厚度变化大,常交切矿体(脉),为成矿期脉岩。区内金矿体的产出主要与斑岩体及煌斑岩脉有关,与煌斑岩脉具有平行、包容和交切3种情况,以交切关系为主;
It is shown that the prevailing metallogenic periods of associated gold deposits of magmatic type are Proterozoic Era and Hercynian Period. 指出岩浆岩型伴生金矿床最主要的成矿期为元古代和晚古生代；
The Tethyan metallogenic domain consists mainly of north Sanjiang metallogenic belt located in southeast Qinghai-Tibet plateau, with middle Cenozoic being the major metallogenic period. 特提斯成矿域仅出露于青海的南部，三江成矿区的北段以中新生代成矿为特点。
Concentration of gold and associated elements decreased in the pyrites,which distributedin the ore body,bcause natural golds and massive pyrites were produced in the metallogenic period. 在金的成矿时期，由于自然金的形成，黄铁矿中金的含量下降。
That period was a bright page in the history of Chinese literature. 那个时期是中国文学史上光辉的一页。
Let us hope that the period of this injustice will be over soon. 让我们希望这个不公正的时期很快结束吧。
Childhood is a period of rapid growth. 幼年是生长迅速的时期。
He consulted the chronicles of the period. 他参考了这一时期的编年史。
Keywords copper deposit;characteristics of time-spatial distribution;metallogenic period division;paleostructure environment;deposit type;China; 铜矿床;时空分布特征;成矿期划分;古构造环境;矿床类型;中国;
He had to decide within a given period. 他得在一定时间内作出决定。
She has a detailed knowledge of this period. 她对这段时期的情况了解地相当详细。
In that period auto sales hit a14-year low. 这时期汽车销售量达到14年来最低水平。
In this period, unemployment reaches record levels. 这段时间的失业人数又达到了创纪录水平。
Which period of history are you studying? 你正在学哪一段历史？
Can you tell me the time period when it was stolen? 能不能告诉我大概什么时候被偷的？
Chaucer wrote in the late mediaeval period. 乔叟写作的时代是中世纪末。
And further more, a metallogenic model is set up. 进而确定了卧龙泉金矿床的成矿模式。
She'll be away for an indefinite period. 她将离开一段时间，何时回来未定。