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202.013  Articles
1 of 20.202 pages  |  10  records  |  more records»
This study focused on carbon and nitrogen stable isotope analysisof dentin and enamel of individuals buried in pre-ceramic and ceramic layers ofthe Forte Marechal Luz site, located in the coast of Santa Catarina State, southernBrazil. The dentin collagen ... see more

Nitrogen is an essential element for life. One of its available forms are nitrates - the compounds playing a key role in the biogeochemical N cycle. However, excessive amounts of nitrates may be harmful to organisms and the environment, therefore in recen... see more

The Bulgarian site Džuljunica-Smardeš, dating to 6205-5529 cal. BC, is one of the oldest Neolithic sites in Europe. Both domestic cattle and caprines are present in the zooarchaeological assemblage, but Sus, in contrast, is extremely rare. It is not known... see more

The Lu-Hf method has been used in the investigation of geological samples in order to understand processes and sources of magmatic rocks. This paper discusses the reference materials GJ-01, 91.500 and Mud Tank isotopic composition by LA-ICP-MS to investig... see more

The meteoric cosmogenic beryllium has been used as an essential geophysical tracer in the analysis of atmospheric flows and erosion soils since 1960. The first measurements Be-7 and Be-10 concentrations in rainwater from Mexico, have been carried out by u... see more

Chemical and lead isotope characterisation was carried out on shrapnel balls and bullets dating back to the First World War (WWI). These ammunitions were widely utilised in the Alpine Austrian–Italian front located in the Italian Alps. The investigation h... see more

Significant improvement in the knowledge concerning the Neoproterozoic Maricá Formation of the Sul-riograndense Shield, southern Brazil, was obtained in the latest years. This contribution synthesizes recent data obtained though an integrated analysis of ... see more

This study combines isotopic (87Sr/86Sr, d18O and d13C) with paleontological data to derive a paleosalinity proxy in order to determine the impact of the Aswan High Dam on Manzala lagoon in Egypt's Nile delta. Analyses were made on 17 invertebrate taxa (m... see more

Neutron activation analysis (NAA), based on the comparator method, has the potential to fulfill the requirements of a primary ratio method as defined in 1998 by the Comité Consultatif pour la Quantité de Matière — Métrologie en Chimie (CCQM, Consulta... see more

1 of 20.202 pages  |  10  records  |  more records»