Results 241 to 250 of about 547,241 (288)

Plant Sr Isotope Ratios As Affected by the Sr Isotope Ratio of the Soil and of the External Sr Inputs

Journal of Agricultural and Food Chemistry, 2018
The 87Sr/86Sr ratio of a produce is generally linked with the soil geological features of the growing areas. This study aimed at assessing to which extent the addition of external Sr by agricultural practices, like irrigation and mineral nutrient supply, influences this relationship.
Agnese Aguzzoni, Michele Bassi, Peter Robatscher, Massimo Tagliavini, Werner Tirler, Francesca Scandellari   +5 more
openaire   +2 more sources

Isotope shift of a series of Sr isotopes

Zeitschrift für Physik D Atoms, Molecules and Clusters, 1986
We give data of the isotope shift for the strontium isotopes from A=80 to A=90. They are found to be inconsistent with data from another optical transition. Possible reasons for the discrepancy are discussed.
Anselment, M., Chongkum, S., Bekk, K., Goering, S., Hanser, A., Meisel, G., Rebel, H.   +6 more
openaire   +1 more source

Nuclear structure of Sr, Zr, and Mo isotopes

Physical Review C, 1985
The nuclear structure calculations for strontium, zirconium, and molybdenum isotopes are performed in a large configuration space by employing a quadrupole-plus-pairing-interaction Hamiltonian. The possible factors responsible for the sudden onset of deformation at N = 60 in these nuclei are pointed out from the systematics of the occupancies of the ...
, Kumar, , Gunye
openaire   +2 more sources

The Sr isotope composition of the world ocean, marginal and inland seas: Implications for the Sr isotope stratigraphy

Stratigraphy and Geological Correlation, 2012
We studied the Sr isotope composition of shells of modern shallow-water mollusks and coral fragments. Twenty five of the studied samples were collected in beach zones of open oceans and marginal seas; twelve and eight additional samples are from saline and freshened inland seas respectively. The 87Sr/86Sr ratio in samples from the Atlantic, Indian, and
A. B. Kuznetsov, M. A. Semikhatov, I. M. Gorokhov   +2 more
openaire   +1 more source

Sr isotopic constraints on the process of glauconitization

Geology, 1992
Sr isotopic data of Holocene glauconitic pellets suggest a twofold glauconitization process that is strongly linked to the detrital clay minerals from surrounding mud which act as precursors until the K2O content of the glauconitic material reaches 4%. Above that, a detectable sea-water influence becomes progressively predominant.
Norbert Clauer, Eddy Keppens, Peter Stille   +2 more
openaire   +1 more source

Applications of Sr Isotopes in Archaeology

2011
The inclusion of radiogenic strontium isotope (87Sr/86Sr) analysis in archaeological and bioarchaeological research has resulted in the creation of new data by which to evaluate models of migration, culture change, colonization, trade, and exchange. Overwhelmingly, archaeologists have used radiogenic strontium isotope signatures in human enamel and ...
N. M. Slovak, A. Paytan
openaire   +1 more source

Proton transfer reactions on Sr isotopes

Physical Review C, 1976
We have investigated the proton transfer reactions $^{86}\mathrm{Sr}(d,n)^{87}\mathrm{Y}$, $^{87}\mathrm{Sr}(d,n)^{88}\mathrm{Y}$, and $^{88}\mathrm{Sr}(d,n)^{89}\mathrm{Y}$ at 12 MeV incident deuteron energy. Spectroscopic factors are extracted from a distorted wave Born approximation analysis and compared to the spectroscopic factors extracted from ...
J. L. Horton, C. E. Hollandsworth
openaire   +1 more source

Study of the shape transition in Sr isotopes

Il Nuovo Cimento A, 1987
Shape transitions in Sr isotopes are studied in the conventional shell model. The single-neutron energies are varied linearly in the isotope string to absorb the n-p interactions. It is found that the gross features of the energy spectra and the onset of deformation of98Sr and100Sr can be reproduced.
L. M. Chen, S. T. Hsieh, H. C. Chiang, D. S. Chuu   +3 more
openaire   +1 more source

Mg, Sr and Sr isotope geochemistry of a Belgian Holocene speleothem: implications for paleoclimate reconstructions

Chemical Geology, 2000
In this study, variations in Mg/Ca, Sr/Ca and 87Sr/86Sr ratios in a Holocene Belgian speleothem (cave secondary carbonate deposit) are interpreted in terms of changes in water residence time and changes in weathering processes, possibly induced by changes in West European climate. A stalagmite from the Pere Noel cave (Belgium) was dated with the TIMS U/
Verheyden, Sophie, Keppens, Eddy, Fairchild, Ian John, McDermott, Frank, Weis, Dominique   +4 more
openaire   +2 more sources

Sr isotope measurements in beef—analytical challenge and first results

Analytical and Bioanalytical Chemistry, 2012
The strontium isotope ratio ((87)Sr/(86)Sr) in beef, derived from 206 European cattle, has been measured. These cattle were located in 12 different European regions within France, Germany, Greece, Ireland, Italy, Spain and the UK. As animal protein is known to be a difficult material on which to conduct Sr isotope analysis, several investigations were ...
Rummel, S., Dekant, C. H., Hölzl, S., Kelly, S. d., Baxter, M., Marigheto, N., Quetel, C. R., Larcher, Roberto, Nicolini, Giorgio, Fröschl, H., Ueckermann, H., Hoogewerff, J.   +11 more
openaire   +4 more sources