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(Article of periodic en Français - 1975)

Document title

CUIRASSES DE FER ET CUIRASSES DE SILICE EN FRANCE OCCIDENTALE

Authors(s) and Affiliation(s)

RONDEAU A. ;

Abstract

IN WESTERN AND SOUTHWESTERN FRANCE THERE ARE TWO TYPES OF DURICRUSTS: FERRUGINOUS LATERITE AND SILCRETE. WHILE IN AUSTRALIA THESE DURICRUSTS SEEM TO BE CONTEMPORANEOUS AND CONTIGREOUS, THEY ARE SUPERIMPOSED IN FRANCE. THE EARLIER ONES HAS BEEN FORMED IN NORTHERN FRANCE SINCE LATE CRETACEOUS TIMES, WHILE IN THE SOUTHWESTERN PART THEIR FORMATION EXTENDED UNTIL THE OLIGOCENE. TECTONIC AND CLIMATIC IMPLICATIONS ARE DISCUSSED, E.G. CHANGES OF PALAEOLATITUDES.

Source

Article of periodic

published at : BULLETIN DE L'ASSOCIATION DE GEOGRAPHES FRANCAIS

Editor :

Millesime : 1975, no424-425 [pp. 161-164]

Language

Français

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