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Book Chapter

Tertiary igneous rocks: general features, dating and correlation

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Published:
January 01, 2016

Abstract

The North Atlantic Igneous Province - NAIP (Thulean Volcanic Province) - comprises large volumes of intrusive and extrusive igneous rocks. These were emplaced during crustal thinning and subsequent continental break-up and initial phases of seafloor spreading, associated with the rifting and opening of the North Atlantic between Greenland and NW Europe. The NAIP is now dismembered by the opening of the North Atlantic, with elements represented in Baffin Island (Canadian Arctic), west and east Greenland, the Faroe Islands, and in northern and western parts of the British Isles and adjacent offshore areas (Saunders et al. 1997). Igneous activity extended from latest Cretaceous to Middle Eocene, but was most intense during two phases, in the mid-Paleocene and around the Paleocene-Eocene boundary. Its wide extent, predominantly mafic composition and extensive subaerially erupted flood basalts qualify the NAIP as a Large Igneous Province (LIP) or Continental Flood Basalt Province (CFBP) (Saunders et al. 1997).

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Geological Society, London, Special Reports

A revised correlation of Tertiary rocks in the British Isles and adjacent areas of NW Europe

C. King
C. King
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A. S. Gale
A. S. Gale
School of Earth & Environmental Sciences, University of Portsmouth, Burnaby Building, Burnaby Road, Portsmouth PO1 3QL, UK
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T. L. Barry
T. L. Barry
Department of Geology, University of Leicester, University Road, Leicester LE1 7RH, UK
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Geological Society of London
Volume
27
ISBN electronic:
9781862397071
Publication date:
January 01, 2016

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