Magma flow in dyke swarms of the Karoo LIP: Implications for the mantle plume hypothesis

WW Hastie, MK Watkeys, C Aubourg - Gondwana Research, 2014 - Elsevier
Abstract The~ 183 Ma old Karoo Large Igneous Province extends across southern Africa
and is related to magmatism in Antarctica (west Dronning Maud Land and Transantarctic …

Lateral magma flow in mafic sill complexes

C Magee, JD Muirhead, A Karvelas… - …, 2016 - pubs.geoscienceworld.org
The structure of upper crustal magma plumbing systems controls the distribution of
volcanism and influences tectonic processes. However, delineating the structure and …

Is this magnetic fabric normal? A review and case studies in volcanic formations

P Rochette, C Aubourg, M Perrin - Tectonophysics, 1999 - Elsevier
When studying weakly anisotropic rocks non-standard relationships between magnetic and
expected petrofabric axes are sometimes observed, in particular the so-called inverse or …

Anisotropy of magnetic susceptibility of lava flows and dykes: a historical account

E Cañón-Tapia - Geological Society, London, Special …, 2004 - lyellcollection.org
The basic assumptions made in the interpretation of the anisotropy of magnetic susceptibility
(AMS) of lava flows, dykes and other tabular intrusive rocks have changed with time. This …

Occurrence and dispersal of magmas in the Jurassic Ferrar large igneous province, Antarctica

DH Elliot, TH Fleming - Gondwana Research, 2004 - Elsevier
Tholeiitic rocks of the Ferrar Large Igneous Province (FLIP) occur in a linear belt from the
Theron Mountains to Horn Bluff in the Transantarctic Mountains and extend into …

On the interpretation of normal and inverse magnetic fabric in dikes: Examples from the Eger Graben, NW Bohemian Massif

M Chadima, V Cajz, P Týcová - Tectonophysics, 2009 - Elsevier
Recent studies of igneous rocks indicate that the predominant occurrence of normal/inverse
fabric in dikes may either reflect the presence of multi-domain (MD)/single-domain (SD) …

How are saucer‐shaped sills emplaced? Constraints from the Golden Valley Sill, South Africa

S Polteau, EC Ferré, S Planke… - Journal of …, 2008 - Wiley Online Library
Magmatic sill intrusions develop saucer‐like geometries in layered sedimentary basins
intruded by large volumes of magma. Saucer‐shaped sill emplacement models are based …

Overlap of Karoo and Ferrar magma types in KwaZulu-Natal, South Africa

TR Riley, ML Curtis, PT Leat, MK Watkeys… - Journal of …, 2006 - academic.oup.com
A suite of mafic dykes from the Underberg region of southern KwaZulu-Natal (South Africa)
were intruded at∼ 178 Ma, coincident in age with the major Okavango Dyke Swarm of …

Magma transport pathways in large igneous provinces: lessons from combining field observations and seismic reflection data

C Magee, RE Ernst, J Muirhead, T Phillips… - Dyke swarms of the …, 2019 - Springer
Abstract Large Igneous Province (LIP) formation involves the generation, intrusion, and
extrusion of significant volumes (typically> 1 Mkm 3) of mainly mafic magma and is …

Rock texture and magnetic lineation in dykes: a simple analytical model

JP Callot, X Guichet - Tectonophysics, 2003 - Elsevier
We develop two simple models for simulating the combination of magnetic sub-fabrics
related to magma flow in dykes. The basic assumptions are (i) the petrofabric is …