1) dacite
[英]['dæsait] [美]['de,saɪt]
英安岩
1.
The discovery of adakitic dacite in Early Palaeozoic island arc volcanic rocks on the northern margin of Qaidam basin and its geological significance;
柴北缘早古生代岛弧火山岩中埃达克质英安岩的发现及其地质意义
2.
Chemical weathering for dacite in Pingxiang, Guangxi;
广西凭祥英安岩的化学风化作用研究
3.
Spherulitic Dacite──A Natural Rock Used as Ceramic Opacifier;
球粒状英安岩──一种作为陶瓷釉用原料的天然岩石
2) 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。
3) decite
英安岩(地)
4) dacitoid
似英安岩
5) metamorphic dacite
变质英安岩
1.
Zircons from the metamorphic dacite of the Wudaogou Group in Yanbian area have euhedral-subhedral shapes and high Th/U ratios(0.
延边地区五道沟群变质英安岩中的锆石呈自形-半自形晶,具有较高的Th/U比值(0。
6) 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。
补充资料：英安岩
| 英安岩 dacite 一种中酸性喷出岩。其矿物成分和化学成分与花岗闪长岩或石英闪长岩相当。灰色或灰白色。具斑状结构和流纹状构造。斑晶多为中性斜长石，碱性长石较少，有时含少量石英。基质由细粒的长石和石英组成。常与流纹岩、粗面岩、安山岩，以及石英斑岩等伴生，组成厚大的火山岩系。与其有关的矿产有黄铁矿、明矾石、蒙脱石、高岭石等。 |
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条