Results 11 to 20 of about 71,609 (291)
Mn‐Cr isotope systematics of the D'Orbigny angrite [PDF]
Meteoritics & Planetary Science, 2004 Abstract— We have conducted a detailed study of the Mn‐Cr systematics of the angrite D'Orbigny. Here, we report Cr isotopic abundances and Mn/Cr ratios in olivine, pyroxene, glass, chromite, and bulk rock samples from D'Orbigny. 53Cr excesses in these samples correlate well with their respective Mn/Cr ratios and define an isochron with a slope that ...
D. P. Glavin +3 more
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The Osmium Isotope Signature of Phanerozoic Large Igneous Provinces
Geophysical Monograph Series, Page 229-246., 2021 Exploring the links between Large Igneous Provinces and dramatic environmental impact
An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Alexander J. Dickson +2 more
wiley +8 more sources
Collective features of Cr and Fe isotopes [PDF]
Physical Review C, 2014 The question of the sudden increase of collectivity in neutron-rich nuclei when approaching $N=40$ has recently interested both experimentalists and theorists. In this paper we study the development of collectivity along the chromium and iron isotopic chains.
Kotila, Jenni-Mari, Lenzi, Silvia, M.
openaire +3 more sources
Yankuang ceshi, 2019 BACKGROUND With the development of Multi-collector Thermal Ionization Mass Spectrometry (MC-TIMS) and Multi-collector Inductively Coupled Plasma-Mass Spectrometry (MC-ICP-MS), Cr isotopes had been successfully measured at a high resolution.
SHI Kai +4 more
doaj +1 more source
Frontiers in Ecology and Evolution, 2023 Anthropogenic activities are exposing insects to elevated levels of toxic metals and are altering the bioavailability of essential metals. Metals and metal isotopes have also become promising tools for the geolocation of migratory insects.
Megan S. Reich +10 more
doaj +1 more source
Study of nuclei around Z = 28 by large-scale shell model calculations
EPJ Web of Conferences, 2014 We study Cr and Ni isotopes by using Monte Carlo shell model (MCSM) calculations in a pfg9d5 model space. In the MCSM, a wave function is represented as a linear combination of angular-momentum- and parity-projected deformed Slater determinants(MCSM ...
Tsunoda Yusuke +4 more
doaj +1 more source
Can We Discover Truffle’s True Identity?
Molecules, 2020 This study used elemental and stable isotope composition to characterize Slovenian truffles and used multi-variate statistical analysis to classify truffles according to species and geographical origin. Despite the fact that the Slovenian truffles shared
Staša Hamzić Gregorčič +7 more
doaj +1 more source
Quadrupole Collectivity in Neutron-Rich Fe and Cr Isotopes
Physical Review Letters, 2013 Intermediate-energy Coulomb excitation measurements are performed on the N ≥ 40 neutron-rich nuclei (66,68)Fe and (64)Cr. The reduced transition matrix elements providing a direct measure of the quadrupole collectivity B(E2;2(1)(+) → 0(1)(+)) are determined for the first time in (68)Fe(42) and (64)Cr(40) and confirm a previous recoil distance method ...
H. L. Crawford +25 more
openaire +5 more sources
Neutron-rich Chromium Isotope Anomalies in Supernova Nanoparticles [PDF]
, 2010 Neutron-rich isotopes with masses near that of iron are produced in Type Ia and II supernovae (SNeIa and SNeII). Traces of such nucleosynthesis are found in primitive meteorites in the form of variations in the isotopic abundance of ^(54)Cr, the most ...
Chen, J. H. +8 more
core +3 more sources
Abyssal peridotite osmium isotopic compositions from cr‐spinel [PDF]
Geochemistry, Geophysics, Geosystems, 2002 Abyssal peridotites, fragments of residual upper oceanic mantle, are believed to have less radiogenic Os compositions and higher Os concentrations than primitive upper mantle (PUM, 187Os/188Os = 0.129 [Meisel et al., 1996]). We have measured 187Os/188Os in 10 whole rock abyssal peridotites representing non‐plume‐influenced mid‐ocean ridge segments. The
J. J. Standish +4 more
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