A geochemical study of the basaltic volcanic rocks in the zone from Xintian Ningyuan to Daoxian

Platinum-group element ( PGE) data for global arc lavas are very scarce.

全球岛弧火山岩的铂族元素数据非常少。

Live Stones& Rock Paintings in the Helan Mountains

有生命的石头&贺兰山岩画

Many images reflected the versatility of birth worship interlaced with totemism;

多幅桌子山岩画图像反映了与图腾崇拜交织在一起的生殖崇拜的多样性；

Some problems on exploration of the Jinshan gold deposit, northeastern Jiangxi

赣东北金山岩金矿床勘探中的几个问题

Petrochemical and geochemical characteristics of Early Paleozoic island-arc volcanic rocks in Northern Fujian Province

闽北早古生代岛弧火山岩的岩石地球化学特征

And based on the rock pressure theory, applying the ANSYS software and engineering examples, the excavation procedure of the top heading of the underground powerhouses is studied, and the recommendable project of the top-heading excavation is made.

并且基于M.M.普罗托奇雅科洛夫（普氏）的山岩压力理论，并利用有限元计算软件ANSYS和工程实例，研究了厂房顶拱层的开挖程序问题，给出了顶拱开挖方法的推荐方案。

Division and structural characteristics of Wudangshan group complex in northwestern Hubei

鄂西北武当山岩群的划分及构造特征

The zircon U Pb date of gneiss from southern Dabie and northern Dabie Mountains show that they have similar forming and evolution history;

南、北大别正片麻岩中的锆石年代学显示它们可能具有相似的形成与演化历史；

There is a uncomplete migmatite zone in the north of rock mass and there are lots of relic body of migmatization biotite plagioclase-gneiss around it.

岩体北侧发育不完整的混合岩带。在岩体的周围常见有混合岩化的黑云斜长片麻岩残留体。

Biotite feldspar gneiss is the main type of reservoir rock with mostly-developed fractures;

结果表明：茨榆坨潜山太古界4类变质岩中，黑云母二长片麻岩是最主要的储集岩，裂缝最为发育；

The high pressure muscovite in eclogite contains large amounts of excess argon, that in high pressure paragneiss contains small amounts of excess argon, and that in high pressure orthogneiss contains no excess argon.

初步认定高压白云母中过剩氩的赋存和岩性有关：榴辉岩中的白云母含过剩氩最多，高压副片麻岩中白云母仍含有少量过剩氩，高压正片麻岩中白云母不含过剩氩。

The preliminary conclusion is ( 1) muscovite in high-pressure metamorphic orthogneiss does not contain excess argon and can be the object for 40Ar/ 39Ar dating;

由此得出的初步结论是：①高压变质的正片麻岩中的白云母中不含过剩Ar，这类矿物可以作为~（40）Ar/~（39）Ar同位素测年的对象；

Petrology, mineralogy and formation environment ofa corundum-sillimanite-K feldspar gneiss

一种刚玉夕线钾长片麻岩的岩石学矿物学特征及形成环境

By afield mapping and analysis there are granitic orthogneiss composed of banded biotite plagiogneiss and biotite monzogneiss in the Shengxianpai area, southern Shaowu, Fujian Province.

野外填图和室内分析表明，福建邵武南部神仙排一带存在一种条带状黑云斜长片麻岩及黑云二长片麻岩的花岗质正片麻岩。

According to the variation model of Pb isotopic composition in crustal vertical section, the northern Dabie complex is beneath the southern Dabie ultrahigh-pressure metamorphic belt and the former is of the middle-lower crustal properties and the latter is of the upper crustal properties.

考虑到北部杂岩带在地壳结构上应位于南部超高压带之下，以及北大别正片麻岩具有中、下地壳性质而南大别花岗片麻岩则具有上地壳特征。

The Su-Lu ultrahigh-pressure metamorphic terrane, eastward portion of the Qinling-Dabie collision zone, is composed mainly of eclogite-bearing amphibole-gneisses and blueschist-bearing metamorphic rock series.

苏鲁超高压变质地体是秦岭-大别构造带的东延部分，主要由含榴辉岩的角闪岩相片麻岩和含蓝片岩的浅变质岩系组成。

Twenty U-Pb ages from thirteen zircon grains indicated that the ages for LTS gneiss are mainly ranged between 233~ 394Ma and DSC gneiss between 307~ 718Ma.

二个样品13个颗粒的20个有效测定点的年龄表明，鹿吐石片麻岩主要分布在233～394Ma，道士冲片麻岩在307～718Ma之间。

Main ore minerals are uraninite and coffinite. Uranium mineralization is mainly present in the biotite-concentrated site within pegmatoid granite and at the contact between pegmatoid granite dykes and biotite plagiogneiss.

主要矿石矿物为晶质铀矿、铀石，铀矿化主要富集在伟晶状花岗岩内黑云母集中区、伟晶状花岗岩脉与黑云母斜长片麻岩接触带处。

The Archaean rocks widely exposed in the area studied belong to the Qian-xi Group of granulite facies, including granulite, charnockite, pyroxene ( and/ or amphibole)-plagioclase gneiss, amphibolite and so on.

研究区内广泛出露的太古代岩石属于迁西群麻粒岩，包括麻粒岩、紫苏花岗岩、辉石-斜长片麻岩、角闪岩等。

Ultrahigh-pressure ORTHOGNEISSES from the Dabie mountains: petrology and metamorphic evolution

大别山超高压正片麻岩：岩石学及变质演化