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花岗岩

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However, geologists often call the rocks with features similar to the granite as granitic rocks or granitoid.

但是,地质学家常常将特征与花岗岩类似的深成岩称为花岗质岩石或花岗岩类,也就是广义花岗岩

The process of magmatic generation (namely migmatization and granitization)is the first step of undergoing formation of all granitoids.However only,some granites formed in the early period of geological history or the specified tectonic environment can preserve characte-ristics of migmatization and granitization in some degree.

岩浆的发生过程是所有壳型花岗岩类形成所必经的第一步,但往往只是一些在地质历史早期或特定的构造环境下形成的花岗岩才不同程度保留混合岩化、花岗岩化的特征。

Therefore, the granitoid is a big group of plutonic rocks including such as granodiorite, monzonite, syenogranite, tonalite, and so on.

因此,花岗岩类是深成岩的一个大类,包括象花岗闪长岩、二长花岗岩、正长花岗岩、英云闪长岩等这样的岩石。

The geochemical characteristics indicate that biotite granodiorite is equivalent to cordierite-bearing peraluminous granitoids, while biotite granitoids are similar to muscovite-monzonitic granite.

地球化学特征表明,黑云母花岗闪长岩与含堇青石的过铝花岗岩相当,而黑云母花岗岩则类似于白云母二长花岗岩

Secondly the sedimentary characteristics of Caledonian strata in Hunan, Guangxi, Jiangxi suggested that there is not discontinuity of facies on both sides of Jiangshan-Shaoxing Fault Zone, which is considered to be Caledonian suture zone of Yangtze Block and Cathaysia Block, but the interdigitation, continuity of facies or assuming the united paleogeographic unit.

得出该结论的证据主要有两方面:①湘桂赣地区加里东期花岗岩体呈面状展布,且地球化学测试结果表明为壳源S型花岗岩,这些特征与洋壳消亡形成的花岗岩体无论在分布特征还是在地球化学特征上都有显著的差别;②湘桂赣地区加里东期地层的沉积古地理特征研究表明在目前多数人公认的扬子与华夏的缝合带,即江绍断裂带两侧的加里东期沉积物不存在两大古地理体系的截然跳相现象,而是表现为两侧沉积相带的指状交叉、过渡或呈现为完全相同、统一的岩相古地理单元。

Although born in Glasgow, Brown grew up in Kirkcaldy, a Fifeshire industrial town that hugs the banks of the Firth of Forth.

克科底是位于法夫区环绕佛斯湾河岸的工业小镇,该地处处可见花岗岩住宅和花岗岩教堂尖塔,小镇居民也有如花岗岩般坚忍不拔的价值观。

Apart from the amphibolite enclaves and dyke swarms, the isotopic ages of the magmatic intrusions have been measured. The magmatic sequence and geochronologic framework are as follows: Quartz monzonite, 1825 ± 23 Ma, TDM = 2920Ma; Throndhjemite, 2374 ± 10 Ma, TDM = 3460 Ma; Tonalite, 2604±102 Ma, TDM = 3063 Ma; Monzonite, 3096±17 Ma, TDM = 2978 Ma; Granite, 3605±43 Ma, TDM = 3528 Ma.

在野外建立热事件相对序列的基础上,通过单颗粒锆石U-Pb法测年和Sm-Nd同位素示踪研究,初步建立了该区早前寒武纪岩浆活动的年代格架:石英二长岩:1825±23 Ma,TDM=2920 Ma;奥长花岗岩:2374±10 Ma,TDM=3460 Ma;英云闪长岩:2604±102 Ma,TDM=3063 Ma;二长花岗岩:3096±17 Ma,TDM=2978 Ma;花岗岩:3605±43 Ma,TDM=3528 Ma。

In view of the distribution and the studies of 〓, it can be suggested that the distribution area of caledonian granites in Southern china can be devided in to 〓 units. the differences between granites in different unit are the results of the collision orogenesis of Yangtze and Cathysian blocks which follows the suturing of the two blocks along Shaoxin-Jiangshan frature belt.

本文从花岗岩的分布及其特征的研究出发,还对华南加里东期花岗岩进行了分区,并指出了各岩区花岗岩特征的差异是加里东期扬子地块与华夏地块相互作用的结果。

On the basis of a large number of actual data of a series of characteristics of the forming process of granitoids of different ages associated with endogenic metallogenesis in Jiangxi and the Nanling region,the forming process of granitoid and the perfect course of its ore-forming continuous evolution have been expounded and proved.On this basis,the perfect conception of the forming process of modern granitoids including magmatic genration, magmatism and petrogenesis, and magmatic hydrothermalism and metallogenesis has been suggested.

以江西及南岭地区不同时代花岗岩类形成过程的一系列特征及其与内生金属成矿作用的关系等方面大量的实际资料为依据,论证了花岗岩类形成作用及其成矿连续演化的完整过程;进而提出现代花岗岩类形成作用的完整概念包括岩浆的发生,岩浆的作用与成岩,以及岩浆热液的活动与成矿三个部分。

The Dabie Mountains are unique among ultrahigh pressure metamorphic terranes in having the most profound post collisional plutonism The Mesozoic shoshonitic and calc alkaline intrusive rocks can be divided into three groups with different isotopic ages, rock assemblages and chemical features Group I consists of late Triassic (~ 210 Ma) mafic monzodiorites It could have been generated by partial melting of enriched subcontinental lithosphere mantle due to slab breakoff Group II consists ma...

第 I组,主要由晚三叠世(约210 Ma)二长闪长岩辉长岩体组成,它可能是在板片断离过程中富集的大陆岩石圈地幔部分熔融的产物;第I I组,由中侏罗世-早白垩世(160~120 Ma)的角闪石英二长岩、黑云母二长花岗岩和正长花岗岩组成,主要是由幔源岩浆的分离结晶与地壳混染共同作用的产物;第II I组,以白垩纪(125~95 Ma)的花岗岩和花岗斑岩为代表,是在热穹窿作用过程中大别杂岩深熔作用和高度演化的产物。

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