岩角

Deformation experiment of amphibole shows that ,under conditions of pressure that is similar to the depth at which crustal low velocity layer of the Qinghai Xizang plateau is buried (20 30 km), and temperature heated to 800℃and 1000℃,amphibolite undergoes plastic deformation and enters steady creep strain states.

在相当于青海—西藏高原地壳低速层埋藏深度（20 ～30 km）的压力条件下进行了角闪岩的变形实验。实验表明，当加热到800℃、1000 ℃时，角闪岩出现塑性变形，并进入稳定蠕动应变状态。

The Au background values are generally high in the amphibolitic rocks of the Archean metamorphic series, which is the main source bed of the region. Amphibolite facies is the major Au-bearing lithofacies.

太古宙变质岩系中的"角闪质"岩石的金元素背景值普遍较高，为本区的主要矿源层，角闪岩相是含金的主要岩相。

Using conventional garnetbiotitemuscoviteplagioclasequartz geothermobarometry, pT conditions were estimated to be 590610 ℃ and 0.951.14 GPa for the Huilongsi Formation, and 630650 ℃ and 0.650.89 GPa for the Zuolaozhuang Formation, in agreement with lower and upper amphibolite facies, respectively.

运用传统的石榴石黑云母白云母斜长石石英地质温压计估算回龙寺组的变质pT区间为590～610 ℃、095～114 GPa，左老庄组为630～650 ℃、065～089 GPa，分别相当于低角闪岩相和高角闪岩相。

The P-wave velocity-depth profile and electrical conductivity-depth profile can be calculated from the experimental data and the fundamental geothermal parameters in northern margin of the North China craton. The comparison of the calculated results with the elastic and electrical structure of this area reveals that the v of amphibolite is approximately equal to the middle crust, the electrical conductivity of amphibolite intersects the range of the middle and lower crust in this area.

利用实验获得的弹性波纵波速度及其温度系数和压力系数以及电导率与温度的关系，结合现今华北克拉通地热学的基本参数，计算得到斜长角闪岩的弹性波纵波速度－深度剖面和电导率-深度剖面，将二者分别与华北克拉通北缘深部地壳的弹性及电性结构进行对比的结果表明：高温高压下绿泥石化斜长角闪岩的弹性波纵波速度与该地区中地壳速度相当，电导率介于中、下地壳范围内。

It has been shown in the Al(Na+K+Ca/2) diagram that the Jinla granitoids are all plotted within the area of "S" type of granites, but the samples from Laochang amphibole admellite, Menglinshan biotite admellite and Nanla K-feldspar graniteporphyry are scattered gradually far away from the boundary between "I" and "S" types of granites, implying that the components from the upper mantle gradually decreasing from the Laochang amphibole admellite to the Menglinshan biotite admellite and then to the Nanla K-feldspar granite porphyry.

3上述三类花岗岩样品皆位于S型花岗岩区，但从老厂似斑状角闪二长花岗岩，勐林山似斑状黑云二长花岗岩，到南腊碱长花岗斑岩，样品分布逐渐远离"I"型花岗岩和"S"型花岗岩的分界线，这表明自老厂似斑状角闪二长花岗岩至勐林山似斑状黑云二长花岗岩，到南腊碱长花岗斑岩幔源组分逐渐减少。

2Graduate School of Chinese Academy of Sciences, Beijing 100049, ChinaAbstract: Two sets of dehydrationmelting with a natural solid amphibolite(56vol.% hornblende, 43vol.% plagioclase), collected from the DabainengLeyu profile in the southern Ailaoshan orogenic belt, Honghe County, Yunnan Province, have been carried out in multianvil apparatus(YJ3000t and JL3600t) at 1035 GPa and 950 ℃ for 20300 h. One is keeping the temperature at 950 ℃ and the annealing time of 100 h, varying the pressure (1035 GPa). The other is keeping the pressure at 30 GPa and temperature at 950 ℃, varying the annealing time (20300 h). The products are inspected with microscope and electron probe.

利用YJ3000t和JL3600t多顶砧压力机，以哀牢山造山带南部红河县大白能-乐育剖面上的天然块状斜长角闪岩为初始样品，在950 ℃、10~35 GPa、恒温20~300 h条件下进行了两个系列的斜长角闪岩块状样品脱水部分熔融实验：(1)保持温度T=950 ℃，加热时间t=100 h不变，改变压力(10~35 GPa)的实验；(2)保持温度T=950 ℃，压力p=30 GPa不变，改变加热时间(20~300 h)的实验。

The Au background values are generally high in the amphibolitic rocks of the Archean metamorphic series, which is the main source bed of the region. Amphibolite facies is the major Au-bearing lithofacies.

太古宙变质岩系中的&角闪质&岩石的金元素背景值普遍较高，为本区的主要矿源层，角闪岩相是含金的主要岩相。

The oxygen isotope equilibria were mostly attained among the marjor minerals in the M-eclogites, such as garnet, omphacite, quartz, and others, and between the M-eclogite and carbonate at higher temperature.

由于荣成地区各类榴辉岩记录的变质温度普遍高于大别山和苏鲁南段的榴辉岩，因此这一地区的榴辉岩在折返过程中一般都叠加有麻粒岩相和／或角闪岩相的退变质作用。

Its stability may extend into eclogitefacies and highpressure granulitefacies in calcic rocks. Because of its high U in its structure and high closure temperature (upper limit of amphibolitefaces), titanite is an ideal UPb dating mineral.

它在岩浆岩中主要存在于高Ca/Al比值的岩石中，在变质岩中常见于绿片岩相、蓝片岩相和角闪岩相岩石，在钙质变质岩中其稳定范围可达榴辉岩相或高压麻粒岩相。

The Khondalite series are characterized by aluminum-rich gneisses consisting of sillimanite-garnet-biotite-monzonite gneiss, garnet-biotite-monzonite gniess, graphite-sillimanitebiotite schist, and garnet-amphibole two-pyroxene granulites occuring as lenses and layers within gneisses.

阿尔金构造带西段的孔兹岩系的主要由夕线石榴黑云二长片麻岩、石榴黑云二长片麻岩、含石墨夕线石榴黑云片岩等富铝的片麻岩类和夹于片麻岩中的石榴角闪二辉麻粒岩，并伴随有夕线榴长石石英岩及含石墨大理岩。

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。