%0 Journal Article
%9 ACL : Articles dans des revues avec comité de lecture non répertoriées par l'AERES
%A Rougerie, Francis
%A Fagerstrom, J.A.
%T Cretaceous history of Pacific basin guyot reefs : a reappraisal based on geothermal endo-upwelling
%D 1994
%L fdi:42900
%G ENG
%J Paleogeography, Palaeoclimatology, Palaeoecology
%@ 0031-0182
%K RECIF CORALLIEN ; CIRCULATION OCEANIQUE ; GEOLOGIE MARINE ; CRETACE
%K ENDO UPWELLING
%K PACIFIQUE BASSIN
%P 239-260
%R 10.1016/0031-0182(94)90075-2
%U https://www.documentation.ird.fr/hor/fdi:42900
%> https://horizon.documentation.ird.fr/exl-doc/pleins_textes/pleins_textes_6/b_fdi_37-38/42900.pdf
%V 112
%W Horizon (IRD)
%X The mid-cretaceous histories (origin, growth, death) of algal-rudist-stromatoporoid reef communities located on many Pacific basin guyots are complex and controversial. These shallow water, tropical communities originated on volcanic edifices extruded during the Barremian-Albian, grew upward during edifice subsidence/trangression throughout the Aptian, Albian and Cenomanian and several of them died almost synchronously near the Cenomanian-Turonian boundary. During their periods of origin and growth, we postulate that the reef ecosystem received dissolved oxygen by wave surge and nutrients by geothermal endo-upwelling. By this process oceanic waters of intermediate depth (approx. 500-1500m) were : (a) drown into the weathered and fractured volcanic summit and lower part of the older reef and driven upward through the porous framework bythe remnant geothermal gradient of the volcanic foundation and (b) emerged atthe reef surface to support the high metabolism of the living community. (D'après résumé d'auteur)
%$ 032MILPHY