查询词典 granitic gneiss

The Dashankeng gneiss located in the northeastern Dabie mountains is composed mainly of potassium feldspar, plagioclase and quartz with minor hornblende, biotite and allanite, belonging to monzonitic granitic in composition.

北大别东部大山坑片麻岩主要由钾长石、料长石和石英组成，少量角闪石、黑云母和褐帘石，成分为二长花岗质。

This paper investigates the characteristics and origin of augen granitic gneiss in the Daheishan area in eastern Tianshan Mountains.

文章对东天山大黑山地区眼球状花岗质片麻岩的特征及其成因进行探讨。

Resulting in f orming some migmatite and granitic gneiss.

同时形成一些混合岩和花岗片麻岩。

This thesis analyzed the basic geological characteristics, petrology, mineral deposit geology, litho geochemistry, and deposit geochemistry of the copper deposit, acquired the following results:(1) According to the metamorphic grade and the metamorphic types of the rocks, suggesting that the mixed granite, granitic migmatite, plagioclase gneiss and hornblende gneiss of the first lithologic member and the second lithologic member in the first sub-formation of Aerbishimaibulake Formation in upper silurian-lower Devonian series belong to Xingxingxia group in proterozoic.

本文对该矿床基础地质特征和岩石学、矿床学、岩石地球化学以及矿床地球化学等方面进行研究，取得了以下熟悉：(1)根据岩石变质程度和变质类型，初步提出矿区上志留-下泥盆统阿尔彼什麦布拉克组第一亚组的第一岩性段和第二岩性段的混合花岗岩、花岗质混合岩以及斜长片麻岩、角闪片麻岩应回为元古界星星峡群。

The garnets in the granitic gneisses from southern Dabie mountain were characterized by riching in Fe and Mn, and pooring in Mg, differing from the garnets in the UHP gneiss and eclogite, which relatively riching Mg. But the plagioclase in the granitic gneisses from the northern Dabie mountain was relative high Ca contenents, their An is 25.2-27.9, within the oligoclase field.

石榴石总体以贫Mg富Fe和富Mn为特征，明显不同于榴辉岩及高压片麻岩中石榴石相对富Mg的情况；而北大别英云闪长质片麻岩中斜长石的钙含量相对较高，An为25.2-27.9，位于奥长石范围内，角闪石中Mg的含量较高，具有壳幔混合源的特征。

The data show the following ages: 1894±17 Ma and 1847±59 Ma for garnet pyroxenite of the Tiantangshan Group complex, indicating a Paleoproterozoic age; 1462±28 Ma for the metabasic volcanic rocks of the Yunkai Group complex, indicating the presence of fragments of the Meso- and Neoproterozoic oceanic crust in the Yunkai area; 906±24 Ma for the granitic gneiss intrusion is, which should be the product of the global Grenville collisional orogeny occurring around 1000 Ma BP. In addition, an inherited detrital zircon age of 2702±13 Ma was also obtained, which is the oldest age in the Yunkai area and even in Cathaysia, proving the presence of Neoarchean continental crustal material in Cathaysia.

获得天堂山岩群石榴辉石岩的形成年龄为1894Ma±17Ma和1847Ma±59Ma，表明其时代为古元古代；云开岩群洋中脊型变质基性火山岩的喷发年龄为1462Ma±28Ma，证明该地区存在中元古代的古洋壳残片；获得花岗质片麻岩的侵入年龄为906Ma±24Ma，应为1000Ma前后发生的全球性Grenville期造山作用的产物，并获得2702Ma±13Ma的继承碎屑锆石年龄，这是云开地区乃至华夏古陆目前获得的最古老年龄，证明华夏古陆曾存在新太古代陆壳物质。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。