RT info:eu-repo/semantics/article
T1 Estudio de las propiedades magnéticas en las terrazas del río Tajo: implicaciones paleoambientales
T2 Magnetic properties studies of Tajo river terraces: palaeoenvironmental implications
A1 Bógalo Román, Mª Felicidad
A1 Keller, P.
A1 Pérez González, Alfredo
A1 Gallardo, J.
A1 Osete López, María Luisa
K1 Rock magnetic properties
K1 Palaeoenvironment
K1 Pleistocene
K1 Soils
K1 Física
K1 Physics
K1 Magnetismo
K1 Magnetism
K1 Geología
K1 Geology
AB Soil profiles from 12 terraces of Plio-Pleistocene to Holocene age from the Tajo river in Central Spain were investigated on there rock magnetic properties. Systematic profiles were sampled in O. 1 m intervals from 24 fresh trenches of 2.5m depth. The soil profiles consist of an upper eluvial horizon (A, E), a intermediate illuvial horizon (B), and sometimes a lower horizon (C). Low and high frequency susceptibility (x), saturation IRM (SIRM), and anhysteretic remanent magnetization (ARM) measurements were performed out. The differences between the stable values of horizon B and the high values of the horizons A and E increase with the age of the soils. Comparison of the mean values of the B horizons for each terrace show low X values for the Holocene and the Late Pleistocene, a strong x increase during the Middle Pleistocene, and again low values for the Pliocene and Early Pleistocene. Magnetic parameters of soils show the palaeoenvironmental changes during this period of time.
PB Sociedad Geológica de España
SN 0213-683X
YR 1996
FD 1996
LK http://hdl.handle.net/10259/9029
UL http://hdl.handle.net/10259/9029
LA spa
NO Este trabajo ha sido financiado por el proyecto de la CE, CHRX-CT93-0315.
DS Repositorio Institucional de la Universidad de Burgos
RD 11-dic-2024