Variación de las tasas de sedimentación en el Complejo Detrítico Superior del Delta del Llobregat (Barcelona): su relación con causas eustáticas, climáticas y antrópicas

摘要: Sediment accumulation rates have been calculated for the Llobregat Delta and compared to eustasy, climate land use. Radiometric ages show slow (less than 1 mm/yr) sediment accumulations between 12180±60 BP (14565±715 cal BP) ~4100 (4500 faster (12 25 younger BP). Within this trend of increasing are two peaks high accumulation; one occurring during Visigoth period (VI-VIII century) Upper Medieval Age (X-XIV second economic recuperation (XVIII century). The initial rate is attributed accommodation produced by rapid Holocene transgression little supply. Following a slower creation of accommodation space, started accumulate at mouth river prograde on shallow shelf. pulses in coincide with interpreted pressure anthropomorphic activity together aridity.