Permian volcanism of the Khenifra Massif (Central Morocco) Petrography and geochemical affinity

Autor:	A Boutsougame, H Ouazzani, E H Abba, M Alaoui
Rok vydání:	2022
Předmět:	General Medicine General Chemistry
Zdroj:	IOP Conference Series: Earth and Environmental Science. 1090:012010
ISSN:	1755-1315 1755-1307
DOI:	10.1088/1755-1315/1090/1/012010
Popis:	The Permian volcanic complex of Khenifra (Moroccan Central Hercynian Massif) manifests itself mainly by volcanic rocks of andesite, rhyolite, dacite, rhyodacite, ignimbrite and trachyte nature. These are rocks with a microlitic to porphyritic texture. They are formed by a primary paragenesis made of plagioclase, pyroxene, olivine, feldspar, biotite, amphibole and quartz and a secondary mineral association made of augite, calcite, chlorite and opaque. Intermediate and acidic rocks are widely represented in Khenifra basin. These facies are of calco-alkaline affinity.
Databáze:	OpenAIRE
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