coesite

The Raman spectrum study of high pressure metamorphic coesite in Central China

华中高压变质柯石英的拉曼谱学研究

Advance of Study on Coesite → Quartz Transition in Ultrahigh Pressure Metamorphic Rocks

超高压变质岩中柯石英→石英相变研究的进展

Review on phase transformation of coesite - quartz from ultrahigh pressure metamorphic rocks

变质岩中石英的水化现象超高压变质岩中柯石英&石英相变动力学研究的评述

The coesite mainly changed quartz glomerocryst which made its including minerals creat radial cracks ;

柯石英多已转化为石英聚晶，并使包裹它的矿物产生放射状胀裂纹；

Kyanite + topaz + coesite associations were stable under the ultra high pressure .

蓝晶石＋黄玉与柯石英一起稳定于超高压条件下。

The discovery of coesite - bearing eclogites in the Dabie Mountains

大别山区含柯石英榴辉岩的发现

Coesite eclogite was discovered by the authors in Xinxian County , Henan Province , central China in1992 .

本文报道了一项中美合作研究的新进展：笔者于1992年在河南省新县发现了柯石英榴辉岩。

Characteristics of superhigh-pressure coesite eclogite and metamorphism in southern Dabie orogenic belt , Anhui Province

大别山超高压榴辉岩带榴辉岩的特征和变质作用

The phase transformation between Coesite and Stishovite is important to petrology , geophysics , and mineral physics .

正确地确定柯石英和斯石英间的相边界对岩石学、地球物理和矿物物理等有着很重要的意义。

Coesite inclusions occur in both garnet and jadeite in fresh quartz jadeitite .

硬玉和石榴石中都有柯石英包体。

Discovery coesite in eclogue and kyanite quartzite from the Dabie mountains , henan Province

河南大别山区榴辉岩及蓝晶石石英岩中柯石英的发现

Free SiO-2 is represented by quartz , coesite and stishovite polymorphs .

自由SiO2系指石英及其同质多型物（polymorphs）柯石英、斯石英等。

Coesite ( pseudomorph ) inclusions is first discovered in hypostheny which reflect a well-developed radial cracks .

在紫苏辉石中首次发现柯石英假像的包体，显示清晰的放射状胀裂纹结构。

Quartz widely occurs in different rocks of the earth 's crust , whereas coesite and stishovite are only formed under high pressures and temperatures .

石英广泛分布于地壳中的各种岩石中，柯石英和斯石英只存在于超高压岩石和陨石坑中。

The discovery of coesite - bearing eclogites in this area enlarges the region of coesite-bearing eclogite belt in Central - Eastern China .

河南大别山区含柯石英榴辉岩的发现扩大了中国中东部含柯石英榴辉岩带的分布区。

Ti-Mg-K-Na-Ca oxide crystals and Si - ( rutile ) occur as interstitial materials within the framework formed by coesite and kyanite .

最外层由柯石英和蓝晶石组成的格架中分布细粒的Si金红石和Ti-Mg-K-Na-Ca氧化物。

The coesite and diamond are included in the garnet and omphacite as a microlic .

柯石英、金刚石均呈微晶状包裹于石榴子石、绿辉石中。

And coesite + diopside and coesite + olivine in zircons from marbles .

大理岩为柯石英+透辉石、柯石英+橄榄石。

TEM reveals that the relationship between coesite and the host quartz is syntaxy and provides strong evidence of the occurrence of high-salty fluids at peak metamorphic conditions .

TEM揭示了柯石英和寄主矿物石英之间为共晶格取向连生关系，并寻找到在峰期变质条件下高盐流体存在的有力证据。

Pure N 2 inclusions have been observed only in fresh coesite bearing eclogites , whereas highly brine inclusions exist almost throughout the ultrahigh pressure ( UHP ) metamorphic rocks .

N2包裹体仅见于含柯石英榴辉岩，而高盐度流体包裹体则几乎存在于所有的榴辉岩和硬玉石英岩中。

Up to now , geologists have identified ultra-high pressure ( UHP ) index minerals , such as coesite and diamond , in 22 metamorphic belts on the global earth .

到目前为止，地质学家已在全球二十二条变质带中发现了柯石英、金刚石和其它超高压指示矿物。

Coesite has been first discovered in the eclogites and their country rocks-kyanite quartzite in the western area of Tuanma Fault from the Dabie Mountains , Henan province .

团麻断裂以西的河南大别山区榴辉岩及其围岩蓝晶石石英岩中首次发现柯石英。

The nanometer amorphous mixture of α - quartz and graphite was prepared by high-energy MBM . The lowest pressure and temperature for synthesizing coesite are 3.7 GPa , 970 K.

利用高能机械球磨制备了α-石英和石墨纳米非晶混合粉末，其高温高压合成柯石英的最低条件是970K和3.7GPa。

Whereas the north Qaidam is a typical continental subduction type metamorphic belt and coesite in zircon from gneiss demonstrates that the northern margin of the Qaidam basin is an UHP metamorphic belt .

而柴北缘为典型的大陆俯冲型变质带，片麻岩锆石中的柯石英证明柴北缘是一超高压变质带。

The studies on ultra-microstructure characteristic of quartz exsolution in eclogite and coesite in UHP eclogite of several localities are done with the appliance of laser Raman spectroscopy and U-stage .

利用拉曼光谱学和费氏台方法对若干地区超高压榴辉岩中柯石英和榴辉岩中石英出溶体的超显微构造特征进行了研究。

The notes describe the common minerals such as quartz and its polymorphs , coesite , tridymite and cristobalite , feldspar , plagioclase , feldspathoids , pyroxenes , amphiboles , etc.

讲稿详细地介绍了火成岩矿物，如：石英及它的同构异形体、柯石英、鳞石英、方石英、长石、斜长石、似长石、辉石、闪石等矿物。

The occurrence of zoisite + kyanite + coesite assemblage indicates that the upper pressure limit of eclogite in the Dabie Mountains does not reach the stability field of lawsonite , and therefore could not exceed 4 . 0-4 . 5 GPa .

黝帘石-蓝晶石-柯石英组合的出现指示大别山榴辉岩的压力上限未达到硬柱石的稳定区域，其形成压力不会超过4.0～4.5GPa。