@mastersthesis{10902/942,
year = {2012},
month = {10},
url = {http://hdl.handle.net/10902/942},
abstract = {The study of the sedimentation rates and dating of sediments has been
carried out for years using the disintegration of natural and artificial radioactive isotopes
present in the environment. In periods of time corresponding to the last decades, those are
with major anthropogenic influence, the used methods are those based ones on the isotope
210Pb of natural origin and 137Cs of artificial origin, both are used in this study. The possibility
of relating the concentration of the activity 210Pb present in a sedimentary sample
with the depth allows dating the difeerent caps of the cores by the applying mathematical
models based in this radioisotope. The establishment of a chronology in the accumulation
of sediments will allow in turn, to study the temporary evolution of the sedimentation
rate during the last 125 years in San Simón's Inlet, a place in the Vigo's Ria. In this job
we describe the models CIC (Constant Initial Concentration) and CRS (Constant Rate of
Supply). We consider the conditions of their application to sediments placed in marshes
and estuaries. The measurement of the concentrations of interest has carried out using
gamma spectrometry, with the corresponding study, calibration in energy and efficiency,
and adjustment of the hyper pure germanium detector HPGe.},
title = {Datación de sedimentos y evaluación de tasas de sedimentación mediante el análisis de isótopos radiactivos de origen natural y artificial usados como trazadores},
author = {Fernández García, Alberto},
}