
handle: 20.500.14352/65258 , 10272/18490
La presencia de sepiolita en los sedimentos neógenos (Aragoniense medio y superior) aparece ligada a paleoambientes de orla distal en abanicos aluviales. Dentro de ellos la formación de sepiolita tuvo lugar en charcas de carácter más o menos perenne próximas al borde de un lago salino, así como a cuerpos de agua desarrollados en la orla en momentos de retrogradación o estabilización relativa de Ios abanicos. Un último ambiente de formación de sepiolita son los perfiles de calcreta que aparecen ampliamente desarrollados en estas zonas distales del sistema aluvial
The existence of sepiolite in neogene sediments (Upper and Lower Aragonian) appears bound to the paleoenvironment distant border in alluvial fans. Within them, the sepiolite formation had place in ponds that were, more or less, continual. These ponds were close to the edge of a saline lake, just as water bodies developed in the border at times of retrogradation or relative stabilization of the fans. Last environments of sepiolite formation are calcrete profiles, which appear completely developed in those distal zones of the alluvial system.
Alluvial fan, Geodinámica, Alluviaal fan, Madrid basin, Sepiolite, 2507 Geofísica, 551.3.051, Neogene
Alluvial fan, Geodinámica, Alluviaal fan, Madrid basin, Sepiolite, 2507 Geofísica, 551.3.051, Neogene
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