La structure du massif volcanique de l'Androy (Madagascar)
- 1 January 1959
- journal article
- Published by EDP Sciences in BSGF - Earth Sciences Bulletin
- Vol. S7-I (2) , 187-191
- https://doi.org/10.2113/gssgfbull.s7-i.2.187
Abstract
The Androy volcanic massif of southernmost Madagascar is more complicated structurally than hitherto believed. Instead of a single basaltic unit covered by a single rhyolitic unit, several successivephases of alternating acid and basic extrusions are recognized. The volcanic complex is cradle-shaped, with dips of more than 10-20 degrees at the margins leading to the formation of cuestas.Keywords
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