Abstract
The Sorbas Basin is a small Neogene sedimentary basin in the Betic Cordillera of south-east Spain. The basin fill includes a thick deposit of Messinian gypsum. Quaternary terrace gravels lie unconformably above the basin fill and mark successive phases of dissection associated with basin inversion. The youngest terraces, probably latest Wurm and Holocene, are undeformed. Deformation broadly follows strike of the underlying Neogene strata (ENE-WSW), and is restricted to an area approximately 1.5 km by 2.5 km. Within this area a number of sags and domes, approximately 250 m in wavelength are developed in basin alluvium and colluvium. The presence of small diapiric domes of Messinian gypsum, and Quaternary gypsum conglomerates in an area of maximum Messinian gypsum accumulation indicates Quaternary diapirism as the source of the deformation. We suggest that the diapirism was stimulated by geomorphic unroofing of the gypsum. -from Authors
| Original language | English |
|---|---|
| Pages (from-to) | 87-97 |
| Number of pages | 0 |
| Journal | Zeitschrift fur Geomorphologie, Supplementband |
| Volume | 82 |
| Issue number | 0 |
| Publication status | Published - 1 Jan 1991 |