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New Magmatic Features in Makhtesh Ramon, Southern Israel

Published online by Cambridge University Press:  01 May 2009

Z. Garfunkel  and
A. Katz
Z. Garfunkel
Affiliation:
Department of Geology, Hebrew University of Jerusalem, Israel.
A. Katz
Affiliation:
Department of Geology, Hebrew University of Jerusalem, Israel.
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Abstract

Six volcanic vents, trachybasaltic bosses, and new dykes replaced by kaolinite were discovered. The vents are built of trachybasaltictrachytic and basaltic plugs and of tuffisites and tuffs. In the trachybasalts, plagioclase and anorthoclase display complicated reaction phenomena, reflecting changes in crystallization conditions. The trachybasaltic and trachytic bodies were emplaced first and subsequently were altered to kaolinite (Upper Jurassic). Magmatic activity was resumed after an intense erosion period leading to the formation of the vents and of the Lower Cretaceous basaltic volcanic complex which was in part extruded through these vents.

Type
Articles
Information
Geological Magazine , Volume 104 , Issue 6 , December 1967 , pp. 608 - 629
Copyright
Copyright © Cambridge University Press 1967

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