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花岗岩

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The results of 118 REE analyses of Li-F granites from South China and other countries indicate that there are three variation ty pes of REE model curves with the different evolution from early to late stages of Li-F grantie complex or from lower to upper petrofacies of the Li-F granite body, which are (1) decreasing,(2) increasing and (3) saltatory variation types. The first variation type is called positive evolution type, which is the production of crystallization differentiation.

华南和其他国家典型Li-F花岗岩的118个稀土分析研究表明,随Li-F花岗岩由早至晚阶段或自下而上不同岩相演化,稀土模式曲线有三种变化类型:①降低变化,②升高变化,③突然变化等类型。

Dongan gold deposit is a epithermal gold deposit occurring in the strong silicification zone of Late Indosinian alkali feldspar granite and Late Yanshanian fine-grained alkali feldspar granite in the intermediate-acidic volcanic-intrusive rock.

东安金矿床是浅成低温热液型金矿床,赋存于中酸性火山-侵入岩、印支晚期碱长花岗岩和燕山晚期细粒碱长花岗岩脉强硅化蚀变带中,受库尔滨断裂的次级断裂控制。

In addition,the mineralogical and geochemical characteristics of the Yingmailai granitic intrusion indicate Stype granitoids,which suggests that ilmeniteseries correspond to Stype granite in the southern Tianshan.

另外,英买来岩体的矿物学和地球化学特征均符合S型花岗岩的特征,说明在本区钛铁矿系列和S型花岗岩相当。

In Yanbian area, high-alumina granites such as Dongqing and Weizigou rock were considered as typical Stype granite and represented the collision of Jiamusi Massif and North China Craton because of the mineral assemblage of garnet and muscovite.

在延边地区,以东清和苇子沟岩体为代表的高铝花岗岩,因其含有石榴石和白云母矿物组合,曾被认为是典型的S型花岗岩,且代表了佳木斯和华北地台的碰撞拼合。

But detail geochemical study indicates (Wu et al., 2002)that those rocks have low Sr〓(0.706), high ε〓(-0.5~-1.9), young age of Nd model age (970-1090Ma) and syngenesis with surrounding I-type granites. The rock originated from partial melting of source igneous rock and belongs to I type granites. The occurrence of high alumina minerals is related to the intense interaction of magma and liquid during the late period of magma evolution, and tetrad REE patterns are formed.

但详细的地球化学研究表明(Wu et al。,2002),岩体具有低的Sr〓(0.706)、高ε〓(-0.5~-1.9)、年轻的Nd模式年龄(970-1090Ma)及与周围Ⅰ型花岗岩的共生关系,认为岩体是火成岩源岩物质部分熔融的产物,属于Ⅰ型花岗岩,高铝矿物的出现与岩浆演化晚期强烈的岩浆—流体相互作用有关,并形成特征的稀土元素四分组效应。

The Indosinian granitoid belt in South Qinling, Central China, is lithologically composed of diorite, monzodiorite, tonalite, granodiorite and granite, as well as widely distributed mafic microgranular enclaves and dykes within the intrusions.

南秦岭印支期花岗岩带的岩石组合包括闪长岩、二长闪长岩、英云闪长岩、花岗闪长岩和花岗岩等,岩体内广泛存在镁铁质微粒包体和脉体。

Sandouping and Huanglingmiao suites consist mainly of tonalite, trondjemite and granodolerite, being syntectonic granitoids emplaced at the ductile domain 16 km deep under the action of SN-strikingregional compression.

三斗坪和黄陵庙两个岩套主要由英云闪长岩、奥长花岗岩花岗闪地组成,是在近南北向区域挤压下于约16km深部塑性域定位的同构造花岗岩,前者主要依靠岩浆在构造弱面逐次强力楔入创造定位空间,后者主要在处于活动状态的韧性拉张剪切带内定位。

The Late Triassic adamellite masses in the Yichun-Yanshou granite zone are a series of rocks with complete texture evolution .

伊春-延寿花岗岩带上的晚三叠世二长花岗岩体是一套呈结构演化系列的岩石,岩石类型按结构可划分出一期结构、二期结构、末期结构的完整系列。

In the area without magma mingling or with weak magma mingling, the host rock is dominated by porphyaceous adamellite showing normal granite fabric.

无岩浆混合作用或岩浆混合作用较弱区段,寄主岩石以似斑状二长花岗岩为主,显示正常的花岗岩结构构造岩浆混合作用强烈区段。

Based on soil radon gas survey in Quanzhou City and Jinjiang City, the authors conducted an investigation of the soil radon gas environment in an area of some 465 km2. The results indicate that radon gas concentrations in soils of Quanzhou and Jinjiang urban areas are at a lower level, whereas those in soils of Quanzhou and Jinjiang suburbs are at a fairly high level. It seems that the radon gas concentration is mainly related to geological background: radon gas concentrations in soils derived from weathering of adamellite, moyite, and biotite schist are higher than those in soils derived from weathering of other rock types.

通过泉州市、晋江市土壤中氡气测量,取得约465 km2土壤氡气环境调查成果,从结果来看,泉州市区和晋江市区土壤中氡气浓度普遍较低;市郊主要为山地,土壤中氡气浓度普遍较高;从土壤中氡气浓度水平的分布来看,土壤中氡气浓度水平主要与地质背景有关,二长花岗岩、钾长花岗岩、钾长浅粒岩及黑云片岩风化土壤中氡气浓度明显高于其他地质背景来源土壤。

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推荐网络例句

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性,但我大喊,并在他们的方向扔石头让他们过的线索,远离我,以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。

Store this product in a sealed, lightproof, dry and cool place.

密封,遮光,置阴凉干燥处。