3,936 research outputs found
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Determining the effects of aqueous alteration on the distribution of oxygen isotopes in carbonaceous chondrites
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Evolved gas analysis of hydrated phases in Murchison and Orgueil
To better characterise the hydrated minerals in chondrites Evolved Gas Analysis of Murchison, Orgueil and selected minerals has been carried out. Meteorite water release profiles show significant differences to expected reference minerals
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The oxygen isotopic composition of water extracted from carbonaceous chondrites
The oxygen isotopic composition of water from carbonaceous chondrites suggests that close to isotopic equilibrium was attained on CI and CM parent bodies. This is more consistent with a closed system than one with fluid flow. Tagish Lake does not display such equilibrium
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The oxygen isotopic composition of water extracted from unequilibrated ordinary chondrites
The oxygen isotopic composition of water extracted from the unequilibrated ordinary chondrites Semarkona and Bishunpur reveals differences in alteration mineralogy and levels of isotopic enrichment – reflecting key parameters in the alteration process
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Laser ablation of Diamond and Genesis concentrator target material
UV laser ablations of CVD diamond using two wavelengths of radiation (266 nm and 213 nm) have been compared. The impetus for this work is the 2004 return of Genesis and extraction of solar-wind oxygen implanted in diamond
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Itqiy: II. a short story about its noble gases and oxygen isotopes
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