- 更多网络例句与Greisen相关的网络例句 [注：此内容来源于网络，仅供参考]
-
Seven wolframite separates from both topaz-quartz vein type and greisen block type tungsten ores were selected for Sm-Nd analysis.
云英岩型钨矿石中2件黑钨矿样品的ε(322Ma)值分别为5.93和4.24，与同时期亏损地幔钕同位素演化线值接近。
-
In contrast, the ε(322 Ma) values of five woiframite separates from the topaz-quartz vein ores range from -4.16 to -8.05, much lower than values of the greisen massive ore.
云英岩型钨矿石的形成作用与亏损地幔源岩浆活动有关，而黄玉－石英脉型钨矿石则很可能是壳源岩浆活动的产物。
-
Seven molybdenite samples from greisen ore body and quartz vein tungsten ore body associated with black tungsten ore were chosen for Re-Os isotopic dating and model age of (141.4±2.2) Ma~(158.2±2.2) Ma were obtained. The isochrone age of molybdenites from greisen type tungsten-tin ore body is (156.8±3.9) Ma, which indicates that its mineralogenetic epoch is at the Middle Jurassic, corresponds to the second stage of early Yanshanian period. And the model age for the samples from greisen ore body and from quartz vein ore body are (150.7±2.4) Ma~(158.2±2.2) Ma and (141.4±2.2) Ma~(151.0±2.4) Ma respectively, which indicates that the mineralization time of the quartz vein ore body is slightly earlier than that of greisen ore body.
文章选取云英岩型矿体及上部石英脉型钨矿体中与黑钨矿共生的辉钼矿7件，进行Re-Os等时线年龄测定，得到其模式年龄为(141.4±2.2) Ma~(158.2±2.2)Ma，其中云英型钨锡矿体中辉钼矿等时线年龄为(156.8±3.9)Ma，成矿时代为中侏罗世，对应于燕山早期第二阶段；从云英岩矿体中样品模式年龄为(150.7±2.4)Ma~(158.2±2.2)Ma，石英脉型矿体中样品模式年龄为(141.4±2.2)Ma~(151.0±2.4)Ma。
- 更多网络解释与Greisen相关的网络解释 [注：此内容来源于网络，仅供参考]
-
granitic rock：花岗质岩石;花岗岩类
花岗云英岩 granite-greisen | 花岗质岩石;花岗岩类 granitic rock | 花岗状 granitic
-
Greenwich Mean Time：格林尼治平时
greenstone 绿岩 | greenwich mean time 格林尼治平时 | greisen 云英岩
-
greisen：云英岩
云英斜煌岩 aschaffite | 云英岩 greisen | 云英岩化(作用) greisenization