학술논문
Crustal contamination in early Basin-and-Range hawaiites of the Los Encinos Volcanic Field, central Mexico
Document Type
Academic Journal
Source
Contributions to Mineralogy and Petrology. Jan, 1995, Vol. 118 Issue 4, p321, 19 p.
Subject
Language
ISSN
0010-7999
Abstract
A study of the mineral content in the Los Encinos Volcanic Field hawaiites in central Mexico reveals the existence of large quantities of megacrysts and xenocrysts and minimal amounts of rare granulite xenoliths in these hawaiites, which undergo elemental impacts of crustal contamination. However, unlike in other volcanic locations, lower crustal contamination in these hawaiites does not lead to barium accumulation, suggesting the possible extraction of elements such as thorium and uranium toward the volcanic surface by ascending magmas.