Climate variations in Europe over the past 140 kyr deduced from rock magnetism

Autor: Sigfus J Johnsen, David Williamson, Jean Jouzel, Joel Guiot, Trevor Williams, Maurice Reille, Nicolas Thouveny, K.M. Creer, Jacques-Louis de Beaulieu, Eugène Bonifay, Michel Icole

Publikováno v: Nature
Nature, Nature Publishing Group, 1994, 371 (6497), pp.503-506. ⟨10.1038/371503a0⟩
Nature, 1994, 371 (6497), pp.503-506. ⟨10.1038/371503a0⟩

International audience; RAPID shifts in climate during the last glacial are now well documented, particularly from the oxygen isotope records of the two Greenland ice cores GRIP(1,2) and GISP2(3). In the GRIP record(1,2) these climate events are also

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7beeb68308ac976461da7c1907f13f1b
https://doi.org/10.1038/371503a0

Timing of the Younger Dryas event in East Africa from lake-level changes

Autor: Maurice Taieb, Michel Icole, Philip A. Barker, Brahlm Damnati, David Williamson, Nell Roberts

Publikováno v: Nature. 366:146-148

THE last deglaciation was interrupted by an abrupt cooling event, the Younger Dryas, at 11,000& ndash;10,000 yr BP (uncalibrated radiocarbon timescale)1. Originally recognized in climate records from northwest Europe, the Younger Dryas has now been i

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::759d7f606f30470a5455094899544282
https://doi.org/10.1038/366146a0

Minéralogie des sédiments du groupe Peninj (lac Natron, Tanzanie). Reconstitution des paléoenvironnements lacustres. Mineralogical records of the Peninj Group (Lake Natron, Tanzania). Lacustrine paleoenvironment implications

Autor: Maurice Taieb, Christian P. Robert, Guy Perinet, Michel Icole, Paul Manega

Publikováno v: Sciences Géologiques. Bulletin. 40:71-82

Sedimentary units of the Peninj Group located at the western edge of Lake Natron (Tanzania) include the Humbu and the Moinik formations. Their age is between approximately 1.6 and 1.0 Ma. The Humbu Formation is consisting of lacustrine deposits with

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0871968b11f3e43bef726716506022de
https://doi.org/10.3406/sgeol.1987.1751

Les silicates de sodium du manga (Niger), Marqueurs de paleoenvironnement?

Autor: Guy Perinet, Alain Durand, Michel Icole, Raymond Lafont

Publikováno v: Palaeogeography, Palaeoclimatology, Palaeoecology. 42:273-284

Sodium silicates and chert of similar appearance are often considered as environmental indicators: saline playas with shallow ground-water tables for magadiite, kanemite and makatite formation; post-evaporite environment for kenyaite and chert by lea

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https://doi.org/10.1016/0031-0182(83)90026-3

Marqueurs biogéochimiques d'aridité dans l'estuaire du Sénégal et le Manga nigérien(Biogeochemical process of aridity in the Senegal estuary and the nigerian Manga plain)

Autor: H. Faure, J.-Y. Gac, Michel Icole, J. Monteillet

Publikováno v: Périodiques Scientifiques en Édition Électronique.

In the Manga, of Niger (North-West of Lake Chad), the depressions between dunes have kept the mark of water table fluctuation related to climate. The succession of events is : sedimentation of diatomite, nodulation of concretions of sodium silicates,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0f57ec1f0c40325b50f1d4341f8bc702
https://www.persee.fr/doc/bagf_0004-5322_1982_num_59_483_5308