Reconstruction of palaeoenvironmental conditions by investigation of Holocene playa sediments in the Ebro Basin, Spain : preliminary results

Special issue. Geomorphic response of mediterranean and arid areas to climate change

Auteurs :
SCHÜTT, B.
BERKOWICZ, S.

Description :
First results of the analysis of the geochemistry and mineralogy of sediments from two endorheic basins within the central Ebro Basin, the Las Plañas de Bujaraloz (west of Zaragoza) and the Desierto de calanda (southwest of Alcañiz) indicate that the climatic conditions governing sedimentation during the Holocene changed from humid and subhumid to the present subarid conditions, but was interrupted by a phase of increased humidity. The varying character of solid bedrock caused different weathering products, which are reflected in the varying geochemical and mineralogical composition of lake deposits.


Type de document :
Congrès

Source :
IGU-GERTEC Conference, Jerusalem, Israel, 1995-05-13, Geomorphology (Amsterdam), issn : 0169-555X, 1998, vol. 23, n°. 2-4, p. 273-283, Collation : Illustration, Références bibliographiques : 29 ref.

Date :
1998

Editeur :
Pays édition : Pays-Bas, Amsterdam, Elsevier