A new proxy for Cretaceous paleoceanographic and paleoclimatic reconstructions: Coiling direction changes in the planktonic foraminifera Muricohedbergella delrioensis

Autor: Delphine Desmares, Nemo Crognier, Bernard Beaudoin, Danièle Grosheny, Marc Testé, Jérémie Bardin

Publikováno v: Palaeogeography, Palaeoclimatology, Palaeoecology
Palaeogeography, Palaeoclimatology, Palaeoecology, Elsevier, 2016, 445, pp.8-17. ⟨10.1016/j.palaeo.2015.12.021⟩
Palaeogeography, Palaeoclimatology, Palaeoecology, 2016, 445, pp.8-17. ⟨10.1016/j.palaeo.2015.12.021⟩

International audience; Among some modern and recent fossil species of planktonic foraminifera, the proportion of left-to right-coiled shells in a population appears to be temperature-dependent; the relative abundance of each morphotype reflecting ec

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d00713fa626fb80de1df952446a7d92f
https://hal.sorbonne-universite.fr/hal-01259877/file/Desmares_A_new_proxy_for.pdf

High-resolution biotratigraphy and chemostratigraphy of the Cenomanian/Turonian boundary event in the Vocontian Basin, southeast France

Autor: Laurence Morel, Bernard Beaudoin, Delphine Desmares, Danièle Grosheny

Publikováno v: Cretaceous Research
Cretaceous Research, Elsevier, 2006, 27, 5, pp.629-640. ⟨10.1016/j.cretres.2006.03.005⟩

The Cenomanian/Turonian boundary black shale has been traced in southeastern French subalpine ranges in several sections correlated over tens of kilometres, both on a bed-by-bed basis and with the control of δ13C isotope curves. Correlations show a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bf29985c0e93248e00d8503d8d67b34d
https://doi.org/10.1016/j.cretres.2006.03.005

High resolution record of environmental changes constrained by volcanic ashes : Western Interior Basin, Cenomanian-Turonian stage boundary (USA)

Autor: Silvia Gardin, François Gauthier-Lafaye, Bernard Beaudoin, Danièle Grosheny, Delphine Desmares

Publikováno v: Bulletin de la Société Géologique de France. 175:561-572

Five altered volcanic-ash beds have been correlated near the Cenomanian-Turonian stage boundary through much of the Western Interior Basin. These instantaneous events constitute independent chronostratigraphic marker-beds enabling the synchroneity of

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::299d4c4e776ca2d6817917914ea84074
https://doi.org/10.2113/175.6.561

Le temps préservé sous forme de sédiments : résultats semi-quantitatifs obtenus dans la molasse marine miocène du bassin de Digne (Alpes-de-Haute-Provence, Sud-Est de la France)

Autor: Bernadette Tessier, Patrick Gigot, Renaud Couëffé, Bernard Beaudoin

Publikováno v: Comptes Rendus de l'Académie des Sciences - Series IIA - Earth and Planetary Science. 332:5-11

An evaluation of the time preserved as sediment is brought about in three 5th order (100 ka) depositional sequences from the ‘Miocene marine molasse’ of the Digne basin (Sisteron area). Fine analysis of facies (essentially tidal estuarine sedimen

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1d3d0198219e26d81cdce669d05776b9
https://doi.org/10.1016/s1251-8050(00)01497-x

Kerogen chemical structure and source organisms in a Cenomanian organic-rich black shale (Central Italy) — Indications for an important role of the 'sorptive protection' pathway

Autor: Gérard Bardoux, V Salmon, Bernard Beaudoin, André Mariotti, Claude Largeau, Sylvie Derenne

Publikováno v: Organic Geochemistry. 27:423-438

The Bonarelli horizon is an important Cenomanian/Turonian black shale in the Umbria-Marche Appenines of Central Italy. It appears as the final term of a cyclic deposition of ca. 40 thinner, laminated, clayey or siliceous organic-rich levels. The kero

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a1f06a50f2d92eaeb8a6acb9b4aebb14
https://doi.org/10.1016/s0146-6380(97)00058-2