华南花岗岩分类与锶同位素和莫霍面的关系:花岗岩系列/类型分布与锶同位素趋势面分布和莫霍面深度变化的制约  

Relation Between the Granite Series and Types, Strontium Isotope Compositions and Isobaths of Moho Surface in South China:Distirbution of Granite Series/Types Restricted by the Analysis of Strontium Isotopic Tendency Surface and the Depth Variation of Moh

作　　者：王联魁[1] 王谦身[2] 徐文新[1] 陈根文[1] 张绍立[1] 

机构地区：[1]中国科学院广州地球化学研究所,广州510640 [2]中国科学院地质与地理物理研究所,北京100029

出　　处：《高校地质学报》2005年第3期358-363,共6页Geological Journal of China Universities

摘　　要：根据花岗岩系列和类型编图,华南地区浅源南岭系列(系列I)花岗岩多产于中部和西部,深源长江系列(系列II)花岗岩主要分布在东部。诸广山型(Ⅰ1型)、大容山型(Ⅰ2型)和关帝庙型(Ⅰ3型)花岗岩的重点分布区,分别在中心腹地、西部和西北部湖南境内;宁芜型(Ⅱ1型)、德兴型(Ⅱ2型)和闽浙沿海型(Ⅱ3型)花岗岩的重点分布区,分别在长江中下游、中西与中东部深断裂带、东南沿海地区。花岗岩系列、类型的趋势面分析和莫霍面深度变化与上述花岗岩系列、类型分布特点对应得非常好,它们的等值线变化趋势几乎重合,相互间吻合一致,可以认为花岗岩的形成与地幔莫霍面的隆起与坳陷密切相关,地幔隆起区产出深源系列II花岗岩,其中Ⅱ1、Ⅱ3型花岗岩尤为典型;地幔坳陷区发育浅源系列I花岗岩,以Ⅰ2、Ⅰ3型花岗岩很显著。Based on the mapping of the granitic series and types, strontium isotopic trend surface analyses and isobaths of Moho surface, the deep-level sourced Yangtze series （ series Ⅱ ） granitoids are mainly distributed in the eastern part of South China. The shallow-level sourced Nanling series （ series I ） granitoids are mainly distributed in the central and western parts of South China. The Ningwu type （ type Ⅱ 1 ）, Dexing type （ type Ⅱ 2 ） and Fujing-Zhejiang cosatal type （ type Ⅱ3 ） granitoids are distributed in the middle-western, central-eastern and southeastern coastal parts of South China, respectively. The Zhuguangshan type （ type I 1 ）, Darongshan type （ type I 2 ） and Guangdimiao type （type I 3 ） granitoeds are distributed in the central, western and northwestern parts of South China, respectively. The generation of granitoids is in close relation with the uplift or depression of the mantle （ Moho surface）. The deep-level sourced granitoids （series Ⅱ ） , especially Ⅱ1,Ⅱ 3 types mainly occur in the uplift areas of the mantle, and shallow-level sourced granitiods （ series I ）, especially I 2, I 3 type granitoids, mainly occur in the depression areas of the mantle.

关 键 词：莫霍面图 花岗岩系列和类型 锶同位素 趋势面分析 花岗岩编图 

分 类 号：P618.68[天文地球—矿床学]