TY - JOUR
T1 - Widespread Palaeocene volcanism around the northern North Atlantic and Labrador Sea
T2 - evidence for a large, hot, early plume head
AU - Chalmers, J.A.
AU - Larsen, L.M.
AU - Pedersen, A.K.
PY - 1995/11
Y1 - 1995/11
N2 - Voluminous volcanism took place west of Greenland and northwest of the British Isles in the Palaeocene, 6-7 Ma before the start of sea-floor spreading in the northern North Atlantic. Very hot (picritic) magmas were produced simultaneously in such widely separated areas that they could not all have been above the central stem of the same mantle plume. A single, large plume head with temperatures of c.1500°C over a diameter of c.2000 km can explain the observations if surface volcanic activity took place only where the lithosphere was thin. The presence of picrites does not indicate proximity to the plume stem. -Authors
AB - Voluminous volcanism took place west of Greenland and northwest of the British Isles in the Palaeocene, 6-7 Ma before the start of sea-floor spreading in the northern North Atlantic. Very hot (picritic) magmas were produced simultaneously in such widely separated areas that they could not all have been above the central stem of the same mantle plume. A single, large plume head with temperatures of c.1500°C over a diameter of c.2000 km can explain the observations if surface volcanic activity took place only where the lithosphere was thin. The presence of picrites does not indicate proximity to the plume stem. -Authors
UR - http://www.scopus.com/inward/record.url?scp=0029540062&partnerID=8YFLogxK
U2 - 10.1144/GSL.JGS.1995.152.01.14
DO - 10.1144/GSL.JGS.1995.152.01.14
M3 - Article
AN - SCOPUS:0029540062
SN - 0016-7649
VL - 152
SP - 965
EP - 969
JO - Journal of the Geological Society
JF - Journal of the Geological Society
IS - 6
ER -