| 释义 |
grei·sen 英ˈgraɪzən美ˈgraɪzənAHDgrīʹzən COCA²⁵⁴³³⁷⁺⁶BNC¹⁷³⁹⁹⁵⁺²
基本英英例句
n.云英岩¹⁰⁰
Noun:
a granitic rock composed of quartz and mica Preliminary study suggests that the greisen magma was formed by evolution of quasi-greisenic magmas resulting from liquid immiscibility of fluorine-and lithium- rich granitic magmas.
这种云英质岩浆是在富氟、锂花岗质岩浆液态分异作用的基础上进一步演化形成的。 cnki
The greisen body-type tungsten- tin deposit is dominating type in Da'ao ore district that is located at the half- hidden ore body whose shape appears approximate dome.
云英岩体型钨锡矿为大坳矿区的主要矿床类型，呈隐伏-半隐伏状产出。 chemyq
Tungsten mineralization types in Yaoling zone are divided into quartz vein, greisen, altered granite and placer.
瑶岭钨矿带钨矿成因类型有石英脉带型、云英岩型、蚀变花岗岩型和砂矿床。 chemyq
Being rich in ore-forming elementsdifferentiated from liquid magma, deposits of both types were formed as a result of further evolution of molten greisen magma.
它们是由岩浆液态分异产生的富成矿元素的似云英岩相熔浆进一步演化而成。 cnki
Malipo emerald deposit in Yunnan Province has two types of pegmatite vein and greisen vein.
云南麻栗坡祖母绿主要有伟晶岩脉型和云英岩脉型两种矿化类型。 cnki
The Dasongpo tin field is the typical representative of greisen tin deposit in west Yunnan, The ore bodies are occurred as the vein group in NNW subordinate structural fractures.
大松坡锡矿是滇西云英岩型锡矿的典型代表。矿体产于燕山晚期花岗岩体内的次级 NNW向构造裂隙带中，呈脉状成群产出。 chemyq |