摘要
赣南—粤北白垩纪火山杂岩来自两个不同的岩浆源区，中、基性岩类源自幔源区，酸性岩类源自壳源区，两者互有影响，组成过渡性岩浆杂岩建造，它们具有各自不同的微量元素特征。本文在讨论两个不同岩浆源区火山杂岩微量元素、稀土元素特征的基础上，对它们的岩浆源区性质进行了探讨。
The Cretaceous volcanic complex in southern Jiangxi-northern Guangdong were derived from two different magma source regions :the mantle region from which the intermediate-basic rocks were derived and the crustal region that gave rise to the acid rocks. These two kinds of magma have been influenced by each other,forming a transitional magmatic complex formation. Volcanic complexes of the two different magma sources have different trace element characteristics. Based on a discussion of the trace element and rare earths characteristics, this paper sheds light on the properties of these two magma sources.
出处
《江西地质》
1999年第2期93-99,共7页
Jiangxi Geology
基金
核工业科学基金
关键词
白垩纪
火山杂岩
微量元素
稀土元素
岩浆源区
Cretaceous
volcanic complex
trace element
property of magma source region
southern Jiangxi-northern Guangdong
