Zobrazeno 1 - 10
of 22
pro vyhledávání: '"Colette Vergnaud-Grazzini"'
Publikováno v:
Paleoceanography. 12:640-648
Planktonic foraminiferal and radiolarian signatures are analyzed in the 355 kyr record of a core from the equatorial part of the Somali Basin in order to reconstruct the amplitude of oceanographic processes and to test the reproducibility of the biol
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::05a63a542c39944238bd5b41b451e609
https://doi.org/10.1029/97pa01954
https://doi.org/10.1029/97pa01954
Autor:
Frans Jorissen, Philippe Martinez, Philippe Bertrand, Claude Pujol, Anne Gervais, Jean-Pierre Peypouquet, Sophie Guichard, Colette Vergnaud-Grazzini
Publikováno v:
Comptes Rendus de l'Académie des Sciences - Series IIA - Earth and Planetary Science. 325:65-70
Two different paleoproductivity proxies, both based on benthic foraminiferal frequency data, are tested in a sediment core from the NW African upwelling area. A first proxy, the BFAR, enables us to estimate the total amount of organic matter introduc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::355662c928a2a49be4b9e534805be041
https://doi.org/10.1016/s1251-8050(97)83274-0
https://doi.org/10.1016/s1251-8050(97)83274-0
Autor:
Colette Vergnaud-Grazzini, J.P. Caulet, Nicolas-Pierre Tribovillard, Pierre Tremblay, Nicole Moureau
Publikováno v:
Marine Geology. 133:157-182
Monsoon-induced upwelling has been operating off Somalia for at least the last 160,000 years, making the NW Indian Ocean one of the most productive oceanic areas in the world. We have studied the sediments (recovered during the Indusom cruise of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b7b49902f71e9f14c72c1ed28cb70a76
https://doi.org/10.1016/0025-3227(96)00034-5
https://doi.org/10.1016/0025-3227(96)00034-5
Publikováno v:
Marine Geology. 131:5-20
Sediments of the North Atlantic contain between 40 ° and 55 °N a series of layers rich in ice-rafted material (Heinrich layers, HL's). In core KS01 from the northeastern Atlantic (46 °00.2′N, 17 ° 12.1′W) we identified HL1 to 5. Important par
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::46ff14b9bc93ee91a3a71e05976913a4
https://doi.org/10.1016/0025-3227(95)00141-7
https://doi.org/10.1016/0025-3227(95)00141-7
Publikováno v:
Paleoceanography. 10:473-491
This study documents the biological signatures impressed upon the sedimentary record underlying both the 5°N upwelling system of the Somali Current and the equatorial area of the Somali Basin out of the upwelling influence. The evolution of these tw
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d23007c06403810a142b46c53249dfc9
https://doi.org/10.1029/95pa00420
https://doi.org/10.1029/95pa00420
Publikováno v:
Marine Geology. 117:329-349
Two planktonic foraminiferal oxygen isotope records of ODP Hole 653A (Tyrrhenian Sea) are presented for the time period extending from approximately 0.8 to 3.0 Ma. Six, generally accepted, synchronous bioevents were used to precise the oxygen isotope
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::af5101a64e6a9a0759321eac4db68a3b
https://doi.org/10.1016/0025-3227(94)90024-8
https://doi.org/10.1016/0025-3227(94)90024-8
Publikováno v:
Marine Micropaleontology. 19:147-161
High productivity in areas within the Alboran Sea could be responsible for a 0.9‰ 13 C depletion of Uvigerina peregrina shells when compared to other western Mediterranean basins. At present however, the δ 13 C variations of the total dissolved in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8272f36caea93b6d53913f6d584985c0
https://doi.org/10.1016/0377-8398(92)90026-g
https://doi.org/10.1016/0377-8398(92)90026-g
Publikováno v:
Geological Society, London, Special Publications. 64:379-389
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::44bab2ef476c32c16241239d465a0194
https://doi.org/10.1144/gsl.sp.1992.064.01.25
https://doi.org/10.1144/gsl.sp.1992.064.01.25
Publikováno v:
Deep Sea Research Part A. Oceanographic Research Papers. 38:597-606
Stable isotope characteristics of the six water layers in the Central Brazil Basin are defined and compared to the various sources from which they originate. The ∂18 O−S‰ relationship allows us to discriminate between the more 18O-rich/more sal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f956f999c00c3ed2cdbd2d0042653e64
https://doi.org/10.1016/0198-0149(91)90065-n
https://doi.org/10.1016/0198-0149(91)90065-n
Publikováno v:
Quaternary Science Reviews. 10:319-334
Detailed pollen analyses and oxygen isotope records of three foraminiferal species, Globigerina bulloides, Uvigerina peregrina and Cibicides pachyderma, from the Semaforo and Vrica composite sections (Crotone, southern Italy) have been compared to th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4d5cfcde66916b868d397d93359c1705
https://doi.org/10.1016/0277-3791(91)90034-r
https://doi.org/10.1016/0277-3791(91)90034-r