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Mostrando ítems 21-30 de 1810
Isotopic characterization of the metabasites and amphibolites of the Acungui and Setuva Groups of the Ribeira Belt
(2002-12-01)
Pb, Rb, Sr, Sm and Nd isotope analyses were carried out on amphibolitic rocks from Campo Largo (PR), Rio Branco do Sul (PR) and Adrianópolis (PR) and for the metabasite from Adrianópolis and Apiai (SP), all belonging to ...
U-Pb ages and Hf isotope compositions of zircons in plutonic rocks from the central Famatinian arc, Argentina
(Pergamon-Elsevier Science Ltd, 2017-07)
The Famatinian arc formed around the South Iapetus rim during the Ordovician, when oceanic lithosphere subducted beneath the West Gondwana margin. We present combined in situ U–Th–Pb and Lu–Hf isotope analyses for zircon ...
Traceability of animal byproducts in quail (Coturnix coturnix japonica) tissues using carbon (13C/12C) and nitrogen (15N/14N) stable isotopes
(Fundação APINCO de Ciência e Tecnologia Avícolas, 2007-12-01)
Consistent information on meat products consumed by the public is essential. The technique of stable isotopes is a powerful tool to recover consumers' confidence, as it allows the detection of animal byproduct residues in ...
Re-Os isotope and highly siderophile element systematics of the Parana continental flood basalts (Brazil)
(Elsevier B.V., 2012-07-01)
Basalts of the Parana continental flood basalt (PCFB) province erupted through dominantly Proterozoic continental crust during the Cretaceous. In order to examine the mantle source(s) of this major flood basalt province, ...
Re-Os isotope and highly siderophile element systematics of the Parana continental flood basalts (Brazil)
(Elsevier B.V., 2012-07-01)
Basalts of the Parana continental flood basalt (PCFB) province erupted through dominantly Proterozoic continental crust during the Cretaceous. In order to examine the mantle source(s) of this major flood basalt province, ...
Stable isotope study of a new chondrichthyan fauna (Kimmeridgian, Porrentruy, Swiss Jura): an unusual freshwater-influenced isotopic composition for the hybodont shark Asteracanthus
(Copernicus Publications, 2015-08)
Chondrichthyan teeth (sharks, rays and chimaeras) are mineralised in isotopic equilibriumwith the surrounding water, and parameters such as water temperature andsalinity can be inferred from the oxygen isotopic composition ...
Modern drought conditions in western Sahel unprecedented in the past 1600 years
(Springer, 2019)
As climate model uncertainties remain very large for future rainfall in the Sahel, a multi-centennial perspective is required to assess the situation of current Sahel climate in the context of global warming. We present ...
Traceability of animal by product meals in broilers fed sugarcane yeast using stable isotopes
(Fundação APINCO de Ciência e Tecnologia Avícolas, 2012-03-01)
The objective of this study was to verify if the dietary inclusion of sugarcane yeast at levels commonly used in broiler diets influences the traceability of cattle meat meal and poultry offal meal, using the technique of ...
Traceability of animal by product meals in broilers fed sugarcane yeast using stable isotopes
(Fundação APINCO de Ciência e Tecnologia Avícolas, 2012-03-01)
The objective of this study was to verify if the dietary inclusion of sugarcane yeast at levels commonly used in broiler diets influences the traceability of cattle meat meal and poultry offal meal, using the technique of ...