1) rhyolite?dacite porphyry
流纹英安斑岩
1.
Identification of rhyolite?dacite porphyry and its relation to uranium mineralization at Xiangshan uranium ore-field;
相山铀矿田流纹英安斑岩的厘定及与铀矿化的关系
2) rhyolite?dacite
[英]['raiə,lait] [美]['raɪə,laɪt]
流纹英安岩
1.
Based on the geologic occurrence,petrologic and isotopic age characteristics,authors of this article have identified 2 suites of dacite at Xiangshan uranium ore?field,and recognized that rhyolite?dacite is of volcanic effusion phase,but rhyolite?dacite porphyry belongs to hypabyssal intrusive phase.
本文从地质产状、岩石学和同位素年龄等特征出发 ,对相山铀矿田的两套英安岩进行了厘定 ,指出流纹英安岩为溢出相岩石 ,而流纹英安斑岩为浅成侵入相岩石 ,两者系不同时期形成的产物。
3) Dacite-rhyolite
英安岩-流纹岩
4) dacite porphyry
英安斑岩
1.
Located in the western part of North Qilian Mountains and composed of 12 small intrusions,Chelugou dacite porphyry shows petrochemically to be calialkelinic series.
车路沟英安斑岩产于北祁连山西段,由大小不同的12个斑岩岩体组成,属于钙碱性系列岩石。
5) dellenite,quartz lattice,rhyodacite
流纹英安岩(地)
6) rhyolite porphyry
流纹斑岩
1.
The ore deposit was surrounded by fractures of NE and NW directions,and generically relat-ed to rhyolite porphyry,The early alterations are mainly of K-feldsparization and biotitiza-tion,and the laters are mainly of silication,sericitization and propylitization.
成矿主要与流纹斑岩有关。
补充资料：流纹岩
| 流纹岩 rhyolite 一种酸性喷出岩。成分与花岗岩相当。灰白色或浅粉红色。常见有流纹构造和斑状玻璃质、球粒、霏细、显微文象等结构。斑晶常为石英、碱性长石，有时有少量斜长石；基质一般为致密的隐晶质或玻璃质。产状多为岩丘。脱玻化明显的流纹岩称为流纹斑岩。流纹岩在中国东南沿海各省有广泛分布，北方辽宁、内蒙古、河北、山西、山东、吉林、黑龙江也都有分布。与之有关的矿产有高岭石、蒙脱石、叶蜡石、明矾石和黄铁矿等。
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