豫北安林地区晚白垩世塔山岩体特征简介  

FEATURES OF THE UPPER CRETACEOUS TASHAN MAGMA IN ANLIN AREA IN NORTHERN HENAN PROVINCE

作　　者：孙卫志[1] 于伟[1] 王振闽[1] 刘宗彦[1] 

机构地区：[1]河南省地质矿产勘查开发局第一地质调查队,河南洛阳471023

出　　处：《资源与产业》2012年第5期80-88,共9页Resources & Industries

摘　　要：塔山岩体为豫北安林地区(安阳至林县)一套具有多岩类组成的环状超单元侵入体:早期侵入闪长(斑)岩、石英闪长斑岩,属富钠钙碱性岩石;晚期侵入为霓辉正长岩、含霓石碱性正长斑岩、碱性花岗岩,属高钾碱性岩。岩浆来源深度大,属壳幔质以幔质为主的重熔岩浆。这期岩浆活动与燕山晚期以伸展构造为主体的太行山陆内造山运动息息相关,同时,又与具有层控特征的安林式矽卡眼岩型铁矿的成生关系密切。除此之外,受塔山岩体控制的矿产还有金、钾长石、蓝石棉等。Tashan magma is a assemblage of ring ultra-unit intrusive formed of diversified magmas in Anlin area, Anyang to Lin County, northern Henan province. The early stage is diorite porphyry, quartz diorite porphyry, belonging to sodium calcium-alkaline magma; the late is aegirine augite syenite, aegirine augite-bearing alkaline syenite porphyry, alkaline granite, belonging to high-K alkaline magma. The magma comes from deep, a remelting by mantle and less crust. The magmatic activity is related to Taihangshan intercontinental orogeny in late Yanshanian period characterized by stretching structures, and to Anlin style skam iron ore with strata-controlling features. Other ores related to Tashan magma includes gold, k-feldspar and blue asbestos.

关 键 词：塔山岩体 超单元侵入体 伸展构造 高钾碱性岩 安林地区 

分 类 号：P584[天文地球—岩石学]