Open AccessDistribution des thanatocénoses récentes de radiolaires dans l'Atlantique nord‐oriental et le sud de la mer de Norvège
Author(s) -
LABRACHERIE MONIQUE
Publication year - 1978
Publication title -
boreas
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.95
H-Index - 74
eISSN - 1502-3885
pISSN - 0300-9483
DOI - 10.1111/j.1502-3885.1978.tb00279.x
Subject(s) - geology , subarctic climate , latitude , equator , boreal , subtropics , paleontology , oceanography , ecology , geodesy , biology
The relative abundance of five groups of radiolarian species (nasselarians and spumellarians) in the thanatocoenoses within the recent sediments from 64 o N to the Equator is described. Four types of thanatocoenoses of Radiolarians and several subtypes are distinguished and in the broadest sense four major faunal zones can be delimited: north of 60 o N, a subarctic zone, a boreal zone, a subtropical zone whose boundary runs approximately along 45 o N and, south of 13 o N, a tropical zone. The correlations between the faunal provinces and climatic belts are more gradual in the low and intermediate latitudes than in the high latitudes