A review of the relationships between granitoid types, their origins and their geodynamic environments
A review of the relationships between granitoid types, their origins and their geodynamic environments
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DOI：
10.1016/s0024-4937(98)00085-1
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发表时间：
1999-03-01
期刊：
影响因子：
3.5
通讯作者：
Barbarin, B
中科院分区：
文献类型：
--
作者：
Barbarin, B
花岗岩类根据其矿物组合、野外和岩石学特征以及化学和同位素特征可分为几种类型。这种类型补充了大多数最近的分类，因为它不仅基于化学和同位素标准，而且还基于野外、岩石学和矿物学标准。因此，在大多数情况下，它具有在野外区分各种花岗岩类型的优点。提出的分类与20种最常用的花岗岩类成因分类有许多相似之处。两类过铝花岗岩均为地壳成因；“拉斑岩”、碱性和过碱性花岗岩属地幔成因；两类钙碱性花岗岩均为混合成因，并涉及地壳和地幔物质。每种花岗岩类型都是在非常特定的构造环境中生成和就位的。威尔逊旋回的每个阶段都以花岗岩类的典型组合为特征。精确的花岗岩类型和年代可以补充构造方法，并指示地球动力学环境。参考一些案例研究，还提出并讨论了花岗岩类作为地球动力学演化示踪剂的使用，(C) 1999 Elsevier Science B.V.版权所有。
Granitoids are divided into several types according to their mineral assemblages, their field and petrographical features, and their chemical and isotopic characteristics. This typology complements most of the recent classifications because it is not based solely on chemical and isotopic criteria but also on the field, petrographical and mineralogical criteria. It thus has the advantage of distinguishing the various granitoid types in the field, in most eases. The proposed classification shares many similarities with the twenty most used genetic classifications of granitoids. Both types of peraluminous granitoids are of crustal origin; the "tholeiitic", alkaline and peralkaline granitoids are of mantle origin; and both types of calc-alkaline granitoids are of mixed origin and involve both crustal and mantle materials. Each granitoid type is generated and emplaced in a very specific tectonic setting. Each stage of the Wilson cycle is characterised by typical associations of granitoids. Well-typed and precisely-dated granitoids can then complement structural approaches and indicate on the geodynamic environment. With reference to some case-studies, the use of granitoids as tracers of the geodynamic evolution is also proposed and discussed, (C) 1999 Elsevier Science B.V. All rights reserved.