Regional distribution of volcanism within the North Atlantic Igneous Province

Jim Á. Horni, John R. Hopper, Anett Blischke, Wolfram H. Geisler, Margaret Stewart, Kenneth McDermott, Maria Judge, Ögmundur Erlendsson, Uni Árting

Publikation: Bidrag til bog/rapport/konferenceproceedingsBogkapitelForskningpeer review

25 Citationer (Scopus)

Abstrakt

An overview of the distribution of volcanic facies units was compiled over the North Atlantic region. The new maps establish the pattern of volcanism associated with breakup and the initiation of seafloor spreading over the main part of the North Atlantic Igneous Province (NAIP). The maps include new analysis of the Faroe-Shetlands region that allows for a consistent volcanic facies map to be constructed over the entire eastern margin of the North Atlantic for the first time. A key result is that the various conjugate margin segments show a number of asymmetric patterns that are interpreted to result in part from pre-existing crustal and lithospheric structures. The compilation further shows that while the lateral extent of volcanism extends equally far to the south of the Iceland hot spot as it does to the north, the volume of material emplaced to the south is nearly double of that to the north. This suggests that a possible southward deflection of the Iceland mantle plume is a long-lived phenomenon originating during or shortly after impact of the plume.

OriginalsprogEngelsk
TitelThe NE Atlantic Region: a Reappraisal of Crustal Structure, Tectonostratigraphy and Magmatic Evolution
RedaktørerG. Péron-Pindvidic, J.R. Hopper, T. Funck, M.S. Stoker, C: Gaina, J.C: Doornenbal, U.E. Árting
UdgivelsesstedLondon
ForlagGeological Society of London
Sider105-125
Antal sider21
ISBN (Trykt)978-1-78620-278-9
DOI
StatusUdgivet - 2017

Publikationsserier

NavnGeological Society Special Publications
ForlagGeological Society London
Vol/bind447
ISSN (Trykt)0305-8719

Programområde

  • Programområde 3: Energiressourcer

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