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Book Chapter

Morphology, internal architecture and emplacement mechanisms of lava flows from the Central Atlantic Magmatic Province (CAMP) of Argana Basin (Morocco)

By
Hind El Hachimi
Hind El Hachimi
Geology Department, Faculty of Sciences-Semlalia, Cadi Ayyad University, Prince Moulay Abdellah Boulevard, P.O. Box 2390, Marrakech, Morocco
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Nasrrddine Youbi
Nasrrddine Youbi
Geology Department, Faculty of Sciences-Semlalia, Cadi Ayyad University, Prince Moulay Abdellah Boulevard, P.O. Box 2390, Marrakech, MoroccoNational Centre for Scientific and Technical Research, Angle avenues des FAR et Allal El Fassi, Madinat Al Irfane, P.O. Box 8027, Nations Unies, 10102 Rabat, MoroccoCentro de Geologia da Universidade de Lisboa (CeGUL), Portugal
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José Madeira
José Madeira
LATTEX, Instituto Dom Luiz – Laboratório Associado (IDL – LA), Lisboa, PortugalUniversidade de Lisboa, Faculdade de Ciências, Departamento de Geologia (GeoFCUL), Portugal
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Mohamed Khalil Bensalah
Mohamed Khalil Bensalah
Geology Department, Faculty of Sciences-Semlalia, Cadi Ayyad University, Prince Moulay Abdellah Boulevard, P.O. Box 2390, Marrakech, MoroccoCentro de Geologia da Universidade de Lisboa (CeGUL), Portugal
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Línia Martins
Línia Martins
Centro de Geologia da Universidade de Lisboa (CeGUL), PortugalUniversidade de Lisboa, Faculdade de Ciências, Departamento de Geologia (GeoFCUL), Portugal
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João Mata
João Mata
Centro de Geologia da Universidade de Lisboa (CeGUL), PortugalUniversidade de Lisboa, Faculdade de Ciências, Departamento de Geologia (GeoFCUL), Portugal
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Fida Medina
Fida Medina
Laboratory Geotel (URAC 46), Scientific Institute, University Mohammed V-Agdal, Rabat, Morocco
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Hervé Bertrand
Hervé Bertrand
Laboratory Sciences de la Terre, ENS de Lyon et UCBL, 46, Allée d'Italie, 69364 Lyon, France
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Andrea Marzoli
Andrea Marzoli
Dipt. di Geoscienze, University Padova, I-35137, Italy
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José Munhá
José Munhá
Centro de Geologia da Universidade de Lisboa (CeGUL), PortugalUniversidade de Lisboa, Faculdade de Ciências, Departamento de Geologia (GeoFCUL), Portugal
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Giuliano Bellieni
Giuliano Bellieni
Dipt. di Geoscienze, University Padova, I-35137, Italy
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Abdelkader Mahmoudi
Abdelkader Mahmoudi
Geology Department, Faculty Sciences de Meknès, Moulay Ismail University, Meknès, Morocco
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Mohamed Ben Abbou
Mohamed Ben Abbou
Geology Department, Faculty Sciences Dhar Al Mahraz, Sidi Mohammed Ben Abdellah University, Fès, Morocco
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Hicham Assafar
Hicham Assafar
Geology Department, Faculty of Sciences-Semlalia, Cadi Ayyad University, Prince Moulay Abdellah Boulevard, P.O. Box 2390, Marrakech, Morocco
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Published:
January 01, 2011

Abstract

The morphology, internal architecture and emplacement mechanisms of the Central Atlantic Magmatic Province (CAMP) lava flows of Argana Basin in Morocco are presented. The volcanic pile was produced by two volcanic pulses. The first, represented by the Tasguint Formation, corresponds to a succession of 3–13 individual flows created by 1–8 eruptions; the second, Alemzi Formation, is composed of 2–7 individual flows formed by 1–4 eruptions. These formations, geochemically distinct, are separated by thin silty or sandy horizons or by palaeosols. They include ‘compound pahoehoe flows’ and ‘simple flows’. The first type is almost exclusive of the lower formation, while the second type dominates the upper formation. The lava flows show clear evidence of endogenous growth or ‘inflation’. The characteristics of the volcanic pile suggest slow emplacement during sustained eruptive episodes and are compatible with a continental basaltic succession facies model.

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Geological Society, London, Special Publications

The Formation and Evolution of Africa: A Synopsis of 3.8 Ga of Earth History

D. J. J. Van Hinsbergen
D. J. J. Van Hinsbergen
University of Oslo, Norway
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S. J. H. Buiter
S. J. H. Buiter
Geological Survey of Norway
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T. H. Torsvik
T. H. Torsvik
University of Oslo
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C. Gaina
C. Gaina
Geological Survey of Norway
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S. J. Webb
S. J. Webb
University of the Witwatersrand, South Africa
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Geological Society of London
Volume
357
ISBN electronic:
9781862396050
Publication date:
January 01, 2011

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