| 火山作用—深成作用的相互联系 |
| |
| 引用本文： | 高秉璋.火山作用—深成作用的相互联系[J].江西地质,1997,11(4):33-40. |
| |
| 作者姓名： | 高秉璋 |
| |
| 作者单位： | 江西地质矿产勘查开发局地矿调研大队 |
| |
| 摘 要： | 火山作用－深成作用的相互联系是研究岩浆活动从侵入到喷出，以及演化和发展的重要内容。高位深成岩体是其过渡类型，其中中心式环状杂岩体尤为重要，关键是要识别含棱角状捕掳体及破碎捕掳晶的侵入凝灰岩，包括侵入角砾岩，爆发角砾岩等一系列具侵入特征的火成碎屑岩类；大量的上覆火山岩碎块作为捕掳体出现在充气岩浆中，模糊了深成岩类和火山岩类，但根据产出形态及接触关系等特征仍可加以区别，本文对此问题作了明确的阐明，并以玉华山杂岩体为实例加以简要的论述
|
| 关 键 词： | 火山作用，深成作用，中心式环状杂岩体，侵入凝灰岩 |
INTERCONNECTION OF VOLCANISM AND PLUTONISM |
| |
| Abstract: | The interconnection of volcanism and plutonism is the focal point in the study of magmatic activity,development and evolution from intrusion to eruption .High intrusion is a transitional type,of which the central type ringshaped complex is especially important.Identification of specific intrusive tuff bearing angular xenolith and clastic xenocryst is the key,including the identification of a series of pyroclastic rocks of intrusive characteristics such as intrusive breccia,explosive breccia.Large amount of overlying volcanic rock fragments occur as xenoliths in the aerated magma,blurring out distinction between plutonic rocks and volcanic rocks, however, based on form of occurrence,contact relationship and other features,this distinction can still be made.Taking the Yuhuashan complex as an example,this paper gives a clear -cut explanation to this problem. |
| |
| Keywords: | volcanism plutonism central type ring -shaped complesx intrusive tuff |
| 本文献已被 CNKI 维普 等数据库收录！ |
|
