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Carbon isotope fractionation during calcium carbonate precipitation induced by urease-catalysed hydrolysis of urea
(ELSEVIER SCIENCE BVAMSTERDAM, 2012)
Stable carbon isotopic fractionation during calcium carbonate precipitation induced by urease-catalysed hydrolysis of urea was experimentally investigated in artificial water at a constant temperature of 30 degrees C. ...
Isotopic carbon turnover in pig hoof and rib
(Editora da Universidade Estadual de Maringá - EDUEM, 2021-06-14)
The objective of this study was to evaluate the behavior of carbon incorporation and turnover in hoof and ribs of pigs at different periods of development in the search for tissues that reflect longer the former diet. We ...
Paired isotope records of carbonate and organic matter from the Middle Ordovician of Argentina: Intrabasinal variation and effects of the marine chemocline
(Elsevier Science, 2017-10)
We investigate the expression of the Middle Darriwilian isotope carbon excursion (MDICE) across marine shelf environments in the Argentine Precordillera. Previous work identified the MDICE in the Las Chacritas Formation ...
Analysis of metabolic pools in broilers chicks
(Isotopes In Environmental And Health Studies, 2015-09-18)
This paper shows the possibility of obtaining new parameters for the mathematical modelling of data on stable isotopes in biological systems and its application in obtaining data on metabolic pools of blood plasma, blood ...
Carbon Stocks and Isotopic Composition of the Organic Matter in Soils Covered by Native Vegetation and Pasture in Sorocaba, SP, Brazil
(Univ Tehran, 2009-06-01)
Land cover change constitutes one of main way of alteration of soil organic matter in both quantitative and qualitative terms. The goal of this study was to compare the carbon stock and the isotopic signature of the organic ...
Carbon Stocks and Isotopic Composition of the Organic Matter in Soils Covered by Native Vegetation and Pasture in Sorocaba, SP, Brazil
(Univ Tehran, 2009-06-01)
Land cover change constitutes one of main way of alteration of soil organic matter in both quantitative and qualitative terms. The goal of this study was to compare the carbon stock and the isotopic signature of the organic ...
Carbon stocks and isotopic composition of the organic matter in soils covered by native vegetation and pasture in sorocaba, Sp, Brazil
(2009-12-01)
Land cover change constitutes one of main way of alteration of soil organic matter in both quantitative and qualitative terms. The goal of this study was to compare the carbon stock and the isotopic signature of the organic ...
Benthic foraminiferal stable carbon isotope constraints on deglacial ocean circulation and carbon-cycle changes
(Läderach AG, 2019-11)
How does deep-ocean circulation influence atmospheric CO2 across deglacial transitions? Although biogeochemical and physical processes complicate interpretation of foraminiferal stable carbon isotope data, these complications ...
Controls of extreme isotopic enrichment in modern microbialites and associated abiogenic carbonates
(Pergamon-Elsevier Science Ltd, 2020-01)
Microbialites and abiogenic carbonates of the closed-basin hypersaline lake Laguna Negra (Catamarca Province, Argentina) are highly enriched in both 13C and 18O. These carbonates precipitate in the zone of recharge where ...