1) granulitic-facies xenoliths
麻粒岩相捕虏体
2) Granulite xenolith
麻粒岩捕虏体
1.
These granulite xenoliths are not only important for understanding the composition and interaction between the lower lithosphere and the mantle,but also direct evidence for Mesozoic delamination of North China C.
内蒙古四子王旗地区地处华北板块北缘,与西伯利亚板块的接合部,其早白垩世橄榄玄武岩中发现大量下地壳麻粒岩捕虏体,并可见辉石、长石捕虏晶。
2.
This study presents the petrological and mineralogical characteristics of granulite xenoliths from Cenozoic basalts in Nushan, Guizishan, Xilong and Qilin, Southeastern China.
浙江西垄和新昌的麻粒岩捕虏体的矿物学特征和形成条件介于女山和广东的麻粒岩捕虏体之间。
3) xenolith granulites
捕虏体麻粒岩
1.
Nominally anhydrous minerals (clinopyroxene, orthopyroxene, plagioclase and garnet) within Archean terrain granulites and xenolith granulites captured by Cenozoic basalts from Hannuoba, North China are investigated by Fourier Transform Infrared spectroscopy (FTIR).
应用显微傅里叶变换红外光谱技术,对华北克拉通北缘汉诺坝地区的太古宙地体麻粒岩和新生代玄武岩中捕虏体麻粒岩(中生代底侵成因)的主要组成矿物(单斜辉石、斜方辉石、斜长石和石榴子石)进行了详细分析。
4) the granulite-eclogite facies cumulate xenoliths
麻粒岩相-榴辉岩相堆晶岩捕虏体
5) sandstone xenolith
砂岩捕虏体
1.
In this paper, we reported the OSL dating result of the sandstone xenoliths, which were trapped in the two volcanic.
晚期南湾火山是典型的射气岩浆喷发成因的火山,文中报道了南湾火山的上、下2层火山碎屑岩中砂岩捕虏体的光释光(OSL)测年结果,提出南湾火山喷发时代为距今约3万年左右的晚更新世末期。
6) pyroxenite xenolith
辉石岩捕虏体
1.
Abundant pyroxenite xenoliths were found from the Cenozoic Changle basalts,an area distributing near the Tanlu fault zone.
紧邻郯庐断裂带分布的山东昌乐新生代玄武岩含有丰富的辉石岩捕虏体。
2.
The major and trace element data of granulite and pyroxenite xenoliths, which are entrained in Hannuoba basalt Hebei Province, North China, suggest the highly chemical heterogeneity in the lower crust and crust-mantle transitional zone.
河北汉诺坝玄武岩中长英质麻粒岩、镁铁质麻粒岩和辉石岩捕虏体的主量元素和微量元素特征，反映了下地壳及壳幔过渡带组成具有高度化学不均一性。
补充资料：麻粒岩
| 麻粒岩 granulite 一种变质岩。又称粒变岩。属中高级区域变质作用产物。1803年魏斯首次命名。主要由长石、石英、辉石 (紫苏辉石、透辉石等）组成，有时含石榴石、矽线石、蓝晶石等。岩石中含水矿物不稳定，一般不含或少含。矿物多呈粒状，组成粗细条带，相间排列，形成麻粒结构。可根据暗色矿物含量分为两种类型：①暗色麻粒岩。暗色矿物 (紫苏辉石、透辉石、角闪石)达30％～80％。② 浅色麻粒岩，暗色矿物含量小于30％。通常认为，其变质作用属于典型的麻粒岩相的范围。有人主张只把具麻粒岩相典型矿物组合的变质岩称作麻粒岩。主要分布在太古宙至早元古代变质岩系中。
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参考词条