isotope ratios
Clay mineralogy, strontium and neodymium isotope ratios in the sediments of two High Arctic catchments (Svalbard)
... Neodymium was separated from the matrix using the method described in Piotrowski et al. (2009). This method uses two columns. The first column contained Eichrom TRUspec resin which separates out REE from the matrix and ...
21
Method for the determination of concentration and stable carbon isotope ratios of atmospheric phenols
... of isotope ratios to substantiate the validity of ex- trapolation of smog chamber studies to atmospheric condi- tions (Irei et ...tope ratios of methylnitrophenols in atmospheric particulate matter ...
10
The use of nitrogen stable isotope ratios to discriminate between organic and conventional olive cultivation
... systems (Kohl et al., 1973; Freyer and Aly, 1974; Shearer et al., 1974; Kreitler, 1979; Yoneyama et al., 1990; Rapisarda et al., 2010; Camin et al., 2011; Russo et al., 2012). In the last ten years, considering the ...
6
Carbon and nitrogen stable isotope ratios can estimate anionic polyacrylamide degradation in soil
... For isotope ratio analysis, 2 mg ± 10% soil samples were weighed and placed into tin ...nitrogen isotope ratios of each sample were determined on a Finnigan- MAT Delta S isotope ratio mass ...
9
Iodine isotope ratios and halide concentrations in fluids of the Satsuma Iwojima volcano, Japan
... and isotope ratios for the samples are listed in Table ...Br/Cl ratios in fu- maroles, pore fluids and volcanic rocks of Satsuma-Iwojima (Yoshida et ...
9
Multi decadal and ontogenetic trophic shifts inferred from stable isotope ratios of pinniped teeth
... A sample of 44 archived grey seal canine teeth (held at the Sea Mammal Research Unit (SMRU), Univ. of St. Andrews) was randomly selected from adults legally culled in 1972 (n 5) and 1981 (n 39) at the Farne Islands ...
12
Determination of Subsurface Nitrogen Contamination using Tree Leaves and Stable Nitrogen Isotope Ratios.
... mass ratios of the isotopes, their atomic vibrational energies, and occur in systems not at equilibrium (chemically and isotopically) (Kendall and McDonnell, 1998; Hoefs, ...heavier isotope to become more ...
195
Oxygen isotope ratios in coexisting minerals of regionally metamorphosed rocks
... Mineral size {mml comments equant Quartz 0.3 Oligoclase twinning uncommon 0.6 Muscovite 0.2 well-oriented 0.2 well-oriented Biotite Sphene < 0.1 anhedral Apatite < 0.1 subhedral Opaques [r] ...
245
Interpretation and application of carbon isotope ratios in freshwater diatom silica
... Prime100 isotope ratio mass spectrometer at Lancaster University for contemporary UK river samples and Lake Tanganyika sediments, and at Isoprime UK in Cheadle for contemporary European lake ...C ratios ...
10
Spatio-temporal variation of stable isotope ratios in earthworms under grassland and maize cropping systems
... N isotope values was observed with increasing age which suggests that older animals feed on more microbially processed material, whereas young worms prefer fresh organic ...
10
Oxygen and Hydrogen Isotope Ratios in Sedimentary Rocks and Minerals
... The clay mineral suites of the ocean sediments cannot therefore be interpreted as being entirely composed of minerals in isotopic equilibrium with sea water or w[r] ...
228
Nitrogen isotope ratios identify nitrate contamination sources
... 615Nconcentratlonswlth depth for Inorganic fertilizer, animal feedlot, septic tank on-site sewage disposal and natural soil organic matter sites In the Davis area southern Sacramento Val[r] ...
5
2018_Cary.pdf
... Pb isotope data with longitude, and therefore geology, is suggestive of an anthropogenic ...Pb isotope data for the surface water samples against Pb isotope data for NC bedrock and ...Pb ...
13
Petrogenesis of Off-Axis Lavas Erupted Along the 8˚20’ N Seamount Chain, East Pacific Rise
... radiogenic isotope ratios in lavas erupted along the 8°20' N chain with adjacent on-axis EPR lavas and other nearby seamounts to assess the variability of the 8°20'N lavas compared to other regional ...
81
Stable isotopes and dynamic diets : the Mesolithic-Neolithic dietary transition in terrestrial Central Europe
... Stable isotope data in this context have thrown up controversial results, famously such as the ‘sharp shift’ from marine to terrestrial resources along the Atlantic façade of Europe (Richards et ...stable ...
18
Record of Early Toarcian carbon cycle perturbations in a nearshore environment: the Bascharage section (easternmost Paris Basin)
... oxygen isotope ratios at Bascharage do not exhibit a neg- ative shift concomitant to the negative CIE 2 (serpentinum zone) that would potentially indicate warming or intensifica- tion of the riverine supply ...
12
Evaluation of Accuracy and Precision of IRMS by Using Standard Materials and Applications
... nitrogen isotope ratios of produced certified reference materials measured by isoprime IRMS, a recently introduced isotope ratio mass spectrometer (IRMS) [13] ...nitrogen isotope ratios ...
13
Methane oxidizing seawater microbial communities from an Arctic shelf
... Seawater temperature and salinity were recorded with a YSI Professional Plus probe (YSI, Ohio, USA) and a YSI 600 OMS V2 sonde (YSI, Ohio, USA). Water was collected using either a peristaltic pump (Masterflex En- ...
19
Exceptionally high δ15N values in collagen single amino acids confirm Neandertals as high-trophic level carnivores
... stable isotope ratios of Neandertals, ...nitrogen isotope values, often higher than the carnivores from the same sites ...isotopic ratios (especially in carbon), and some individuals exhibit ...
6
In-Situ Measurements of Carbon Stable Isotopes Ratio in Karstic Caves by FTIR Spectroscopy - Volume 9 Number 3 (Jun. 2018) - IJCEA
... stable isotope ratios measurement serves as an important implement for environmental geochemical processes ...isotopic ratios with the advantage of simple in-situ ...
6