Corrélation des niveaux fossilifères marins interstratifiés dans les gypses messiniens, entre la carrière de Los Yesos et la carrière de Molinos de Aguas (bassin de Sorbas, SE Espagne)

Didier NÉRAUDEAU, Blaise VIDET, Philippe COURVILLE, Evelyne GOUBERT & Jean-Marie ROUCHY

fr Geodiversitas 24 (3) - Pages 659-667

Published on 30 September 2002

Stratigraphical correlation of the fossiliferous deposits interbedded in the Messinian evaporites, between the quarry of Los Yesos and the quarry of Molinos de Aguas (Sorbas basin, SE Spain).

Two fossiliferous levels interbedded in the Messinian evaporitic series have been recently discovered in the Molinos de Aguas quarry (Sorbas basin, SE Spain). The older level corresponds to black marls containing fossils fishes of the species Sardina crassa (Sauvage, 1873), when the younger level is a succession of grey marls and limestones with the bivalve Neopycnodonte navicularis (Brocchi, 1814) and the echinoid Brissopsis lyrifera (Forbes,1841). These interruptions of the evaporitic series by marine fossiliferous levels mark two floodings of the eastern part of the Sorbas basin. On a stratigraphical and palaeoenvironmental point of view, these marine facies of Molinos de Aguas are interpreted as the lateral equivalents of two of the three marine fossiliferous facies previously discovered in the evaporitic series of Los Yesos, in the western part of the Sorbas basin: 1) the black marls with fishes of Molinos de Aguas could constitute the equivalent of one of the two black "sands" with oysters and pectinids of Los Yesos ; and 2) the grey marls and limestones with Neopycnodonte and Brissopsis from Molinos de Aguas could be the equivalent of the grey marls and limestones with Neopycnodonte and Brissopsis of Los Yesos.

Keywords :

Messinian, Sardina crassa, Neopycnodonte navicularis, Brissopsis lyrifera, Sorbas, Western Mediterranean, palaeoenvironments, evaporites

Download full article in PDF format