Geoquímica Aplicada à Paleontologia
Descrição
When studying the ancient environments the paleontology can benefit of the
data from isotope geology and from the geochemistry. The information about the
faunal associations and the morphological characteristics of the specimen can
be complemented with information about their geochemical details allowing the
development of more accurate paleoenvironmental reconstructions. Several
examples can be cited such as: (i) calculation of the sea water
paleotemperatures from marine fossils using the 18O/16O ratios of the
exoskeletons; (ii) determination of paleoceanographic conditions through the
determination of εNd in sediments and fossils; (iii) evaluate the oxygenation
of the water column in a marine environment from the rare-earth concentrations
of fossils and sediments.
This course intends to provide a view of the main geochemical and isotopic
tools (radiochronology excluded), with applications in paleontology.