Rousseau, L. and Beauchamp, J. and Bahain, J.-J. and Boudad, L. and Deschamps, P. and Falguères, C. and Ghaleb, B. and Lartigot, A.-S. and Pozzi, J.-P. (2006) First results of an interdisciplinary study of quaternary travertines of Morocco Premiers résultats d'une étude pluridisciplinaire menée sur des travertins quaternaires du Maroc. Quaternaire, 17 (4). pp. 343-350.

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Abstract

After a preliminary study of the travertine outcrop of Irdi (Errachidia province), this site was drilled and the survey was extended to other exposures in Morocco. Complementary methods of investigation were used (palynology, paleomagnetism) together with U-series analyses in order to identify the successive deposition phases and to precise the associated paleoclimatic framework. For a better understanding of the travertine formation, we have studied the travertine formations which are presently forming at Irdi. The respective 234U/238U activity ratios of the present water and fossil travertines are similar, i.e. physical and chemical conditions of travertinization were more or less similar today as in the past. Several crystallization phases were identified from Upper Pleistocene to Middle Pleistocene. These phases must be integrated into the climatic evolution of Morocco and correlated to glacial and interglacial stages defined in marine environment.

Item Type:	Article
Uncontrolled Keywords:	crystallization; depositional sequence; formation mechanism; geochemistry; hydrology; interdisciplinary approach; outcrop; paleoclimate; paleomagnetism; palynology; Pleistocene; travertine; uranium series dating, Africa; Morocco; North Africa
Subjects:	Earth and Planetary Sciences
Divisions:	SCIENTIFIC PRODUCTION > Earth and Planetary Sciences
Depositing User:	Administrateur Eprints Administrateur Eprints
Last Modified:	31 Jan 2020 15:46
URI:	http://eprints.umi.ac.ma/id/eprint/2949

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