Banding in the Margins of Basaltic Dykes Indicates Pulsatory Propagation During Emplacement
C. Allgood,
E. W. Llewellin,
M. C. S. Humphreys
et al.
Abstract:Basaltic fissure eruptions, which are the most common type of eruption on Earth, are fed by dykes which mediate magma transport through the crust. Dyke propagation processes are important because they determine the geometry of the transport pathway and the nature of any geophysical signals associated with magma ascent. Here, we investigate small‐scale (mm–cm wide) banding features at the margins of dykes in the Teno Massif (Tenerife, Spain) and the Columbia River Basalt Province (CRBP) (USA). Similar marginal … Show more
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