北淮阳燕山期岩浆岩地球化学特征及其构造环境

林银山; 郭福生; 辜骏如; 梁鼎新; 吴培琦

doi:10.12097/j.issn.1671-2552.2001.01.021

林银山, 郭福生, 辜骏如, 梁鼎新, 吴培琦. 2001: 北淮阳燕山期岩浆岩地球化学特征及其构造环境. 地质通报, 20(1): 100-106. DOI: 10.12097/j.issn.1671-2552.2001.01.021

引用本文:

林银山, 郭福生, 辜骏如, 梁鼎新, 吴培琦. 2001: 北淮阳燕山期岩浆岩地球化学特征及其构造环境. 地质通报, 20(1): 100-106. DOI: 10.12097/j.issn.1671-2552.2001.01.021

2001: Geochemicalcharacteristics of Yanshanian magmatic rocks in north Huaiyang and their tectonicenvironment. Geological Bulletin of China, 20(1): 100-106. DOI: 10.12097/j.issn.1671-2552.2001.01.021

Citation:

2001: Geochemicalcharacteristics of Yanshanian magmatic rocks in north Huaiyang and their tectonicenvironment. Geological Bulletin of China, 20(1): 100-106. DOI: 10.12097/j.issn.1671-2552.2001.01.021

北淮阳燕山期岩浆岩地球化学特征及其构造环境

Geochemicalcharacteristics of Yanshanian magmatic rocks in north Huaiyang and their tectonicenvironment

摘要

摘要: 北淮阳燕山期断陷盆地中岩浆岩广泛分布。晚侏罗世火山岩以安山岩、粗面质火山碎屑岩为主，岩浆由中性向碱性方向演化。可划分出南北2个火山岩带，南带以中性岩为主，北带粗面质火山岩增多。与火山岩同源的侵入体由辉长岩—闪长岩—花岗岩—碱性花岗岩组成，带有明显的I型花岗岩特征。北淮阳燕山期岩浆岩带是扬子地块与华北地块大规模陆内俯冲的产物。

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