Results 141 to 150 of about 43,392 (192)
Some of the next articles are maybe not open access.

The oxygen isotope composition of San Carlos olivine on the VSMOW2-SLAP2 scale.

Rapid Communications in Mass Spectrometry, 2016
Rationale The precise determination of Δ'17O values in terrestrial material is becoming increasingly important to understand the mass-dependent fractionation processes that cause variations in oxygen isotope ratios.
A. Pack   +5 more
semanticscholar   +1 more source

Formation conditions of pyroxene-olivine and magnesian olivine chondrules

Geochimica et Cosmochimica Acta, 1990
Dynamic crystallization experiments performed on a Type I and an intermediate Type II/III composition demonstrate chondrule texture is controlled by the abundance of heterogeneous nuclei. This factor is controlled by the maximum initial temperature relative to the olivine disappearance temperature for the given heating time.
Patrick M. Radomsky, Roger H. Hewins
openaire   +2 more sources

Nickel–cobalt contents of olivine record origins of mantle peridotite and related rocks

, 2016
Olivine is distinguished from all other minerals in providing a remarkable chemical narrative about magmatic processes that occurred in Earth’s crust, mantle, and core over the entire age of Earth history.
C. Herzberg, C. Vidito, N. Starkey
semanticscholar   +1 more source

An olivine-clinopyroxene geothermometer

Contributions to Mineralogy and Petrology, 1974
The iron-magnesium exchange reaction between olivine and calcium-rich clinopyroxene is formulated as a geothermometer. It is shown that the clinopyroxene M1 site must be nonideal and it is expressed as a regular solution. The appropriate mixing parameters are calculated from a set of groundmass olivine-clinopyroxene pairs from lavas for which there are
Powell, Roger, Powell, Marjorie
openaire   +2 more sources

High-Performance Olivine NaFePO4 Microsphere Cathode Synthesized by Aqueous Electrochemical Displacement Method for Sodium Ion Batteries.

ACS Applied Materials and Interfaces, 2015
Olivine NaFePO4/C microsphere cathode is prepared by a facile aqueous electrochemical displacement method from LiFePO4/C precursor. The NaFePO4/C cathode shows a high discharge capacity of 111 mAh g(-1), excellent cycling stability with 90% capacity ...
Yongjin Fang   +5 more
semanticscholar   +1 more source

Antiferromagnetism in some olivines

2021
This thesis was scanned from the print manuscript for digital preservation and is copyright the author. Researchers can access this thesis by asking their local university, institution or public library to make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
openaire   +3 more sources

Mechanism of Layer Formation on Olivine Bed Particles in Industrial-Scale Dual Fluid Bed Gasification of Wood

, 2016
Utilization of biomass as feedstock in dual fluidized bed steam gasification is a promising technology for the substitution of fossil energy carriers. Experience from industrial-scale power plants showed an alteration of the olivine bed material due to ...
M. Kuba   +6 more
semanticscholar   +1 more source

Zoning of phosphorus in igneous olivine

Contributions to Mineralogy and Petrology, 2008
We describe P zoning in olivines from terrestrial basalts, andesites, dacites, and komatiites and from a martian meteorite. P2O5 contents of olivines vary from below the detection limit (≤0.01 wt%) to 0.2–0.4 wt% over a few microns, with no correlated variations in Fo content.
John R. Beckett   +8 more
openaire   +5 more sources

Olivine in Antarctic micrometeorites: Comparison with other extraterrestrial olivine

Geochimica et Cosmochimica Acta, 1992
The compositions of 5-micron or larger Mg-rich olivines from 26 Antarctic micrometeorite particles were examined and compared with those of other extraterrestrial olivine. The following differences were noted between the Antarctic meteorites and the generally recognized meteorite groups: (1) while refractory-rich (e.g., high Al2O3 or CaO) are common in
openaire   +2 more sources

Accuracy of timescales retrieved from diffusion modeling in olivine: A 3D perspective

, 2015
Diffusion modeling in olivine is a useful tool to resolve the timescales of various magmatic processes. Practical olivine geospeedometry applications employ 1D chemical transects across sections that are randomly sampled from a given 3D crystal ...
T. Shea, F. Costa, D. Krimer, J. Hammer
semanticscholar   +1 more source

Home - About - Disclaimer - Privacy