The K-Ar isotope age of albite phenocryst in albitophyre vein is 372Ma,while that of the ground mas.

鈉長斑巖中鈉長石的K－Ar年齡為372Ma欧美性日，基質(zhì)年齡為337Ma欧美性爱在线播放网站。

In order to determine the time sequence of recent eruption in Tianchi volcano, the TL thermal-stability has been investigated for pumice and sanidine phenocryst within the volcanics.

為厘定天池火山近代噴發(fā)的時序，對堿流巖中的浮巖和透長石斑晶進(jìn)行了熱釋光信號熱穩(wěn)定性研究午夜福利97。

The present results can be used to quantitatively determine the history of water-rock exchange and to serve geological thermometry for various igneous rocks (especially extrusive rocks containing phenocryst).

本文的結(jié)果可用于定量確定水—巖交換歷史以及各種巖漿巖的氧同位素地質(zhì)測溫日韩在线精品福利网页视频观看免费。

Structure: The structure of Jade variable phenocryst interwoven structure, refers to its metamorphism, the transparent and granular around the porphyroblast small fibrous mineral crystals formed interwoven structure.

結(jié)構(gòu)：翡翠的結(jié)構(gòu)為變斑晶交織結(jié)構(gòu)，系指其在變質(zhì)作用下欧美日韩啊啊啊爽性爱激情，透明粒狀斑晶的周圍的細(xì)小纖維狀的礦物晶體交織在一起而形成的結(jié)構(gòu)女老师高潮喷水。

Three different kinds of clinopyroxenes were found in ankaramite and basalts: big phenocryst, small phenocrysts and microcrystals in groundmass respectively.

北塔山組富輝橄玄巖和玄武巖中存在著三種類型的單斜輝石：大斑晶輝石、小斑晶輝石和基質(zhì)輝石十八禁欧美在线观看视频。

phenocryst：斑晶

)一種具斑狀巖理的火山巖,此斑狀巖理依巖漿冷卻速度不同,分為斑晶(Phenocryst)和石基(Groundmass). 巖漿在早期慢慢冷卻結(jié)晶所成的大晶體,稱為斑晶;到了后期,巖漿快速冷卻結(jié)晶形成由細(xì)小晶體所構(gòu)成之石基,此種組織即為斑狀巖理,

phenocryst; phenocrystal：斑晶

表型復(fù)模 phenocopy | 斑晶 phenocryst; phenocrystal | 表現(xiàn)圖 phenogram