CENOZOIC INTRAPLATE VOLCANISM RELATED TO EXTENSIONAL TECTONICS AT CALATRAVA, CENTRAL IBERIA

被引：36

作者：

LOPEZRUIZ, J

CEBRIA, JM

DOBLAS, M

OYARZUN, R

HOYOS, M

MARTIN, C

机构：

[1] UCM,FAC CIENCIAS GEOL,DEPT CRISTALOG & MINERAL,E-28040 MADRID,SPAIN

[2] UNIV LEEDS,DEPT EARTH SCI,LEEDS LS2 9JT,W YORKSHIRE,ENGLAND

来源：

JOURNAL OF THE GEOLOGICAL SOCIETY | 1993年 / 150卷

关键词：

D O I：

10.1144/gsjgs.150.5.0915

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

The Calatrava Volcanic Province is characterized by an intra-plate alkaline undersaturated magmatic association of melilitites, nephelinites, alkali olivine basalts and leucitites that were extruded in the central Iberian Peninsula (Spain) during Late Miocene-Quaternary time. This volcanism can be related to the following two-stage scenario: (1) an initial mantle-diapir stage, during which magma generation would have occurred at the lithosphere/asthenosphere boundary triggering minor accumulation processes at the crust/mantle interface, and consequent weakening/extension of the upper crust; and, (2) a final indentation stage related to disruption effects caused by the tectonic welding of the Prebetic Arc onto the Iberian foreland.

引用

页码：915 / 922

页数：8

共 33 条

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