Search Results - "Kearsley, Anton T."
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The Paris CM chondrite: Secondary minerals and asteroidal processing
Published in Meteoritics & planetary science (01-07-2014)“…We report a petrographic and mineralogical survey of Paris, a new CM chondrite considered to be the least‐altered CM identified so far (Hewins et al. )…”
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Trace element geochemistry of CR chondrite metal
Published in Meteoritics & planetary science (01-10-2013)“…We report trace element analyses by laser ablation inductively coupled plasma mass spectrometry (LA‐ICP‐MS) of metal grains from nine different CR chondrites,…”
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Modal abundances of CAIs: Implications for bulk chondrite element abundances and fractionations
Published in Meteoritics & planetary science (01-11-2008)“…— Modal abundances of Ca,Al‐rich inclusions (CAIs) are poorly known and reported data scatter across large ranges. CAIs are Poisson distributed, and if only…”
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Volatile Fractionation in the Early Solar System and Chondrule/Matrix Complementarity
Published in Proceedings of the National Academy of Sciences - PNAS (27-09-2005)“…Bulk chondritic meteorites and terrestrial planets show a monotonic depletion in moderately volatile and volatile elements relative to the Sun's photosphere…”
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Experimental investigation of impacts by solar cell secondary ejecta on silica aerogel and aluminum foil: Implications for the Stardust Interstellar Dust Collector
Published in Meteoritics & planetary science (01-04-2012)“…– We have shown in laboratory experiment that hypervelocity impacts on a solar cell produce ejecta that can be captured on aluminum (Al 1100) foil or in low…”
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Stardust impact analogs: Resolving pre- and postimpact mineralogy in Stardust Al foils
Published in Meteoritics & planetary science (01-04-2012)“…– The grains returned by NASA’s Stardust mission from comet 81P/Wild 2 represent a valuable sample set that is significantly advancing our understanding of…”
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Experimental impact features in Stardust aerogel: How track morphology reflects particle structure, composition, and density
Published in Meteoritics & planetary science (01-04-2012)“…– The Stardust collector shows diverse aerogel track shapes created by impacts of cometary dust. Tracks have been classified into three broad types (A, B, and…”
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The origin of crystalline residues in Stardust Al foils: Surviving cometary dust or crystallized impact melts?
Published in Meteoritics & planetary science (01-04-2012)“…– Samples returned by the Stardust mission from comet 81P/Wild 2 provide an unequaled opportunity to investigate cometary formation and evolution. Crystalline…”
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Aerogel tracks made by impacts of glycine: Implications for formation of bulbous tracks in aerogel and the Stardust mission
Published in Meteoritics & planetary science (01-04-2012)“…– Impacts of small particles of soda‐lime glass and glycine onto low density aerogel are reported. The aerogel had a quality similar to the flight aerogels…”
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Stardust in Stardust-The C, N, and O isotopic compositions of Wild 2 cometary matter in Al foil impacts
Published in Meteoritics & planetary science (01-02-2008)“…— In January 2006, the Stardust mission successfully returned dust samples from the tail of comet 81P/Wild 2 in two principal collection media, low‐density…”
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A petrological, mineralogical, and chemical analysis of the lunar mare basalt meteorite LaPaz Icefield 02205, 02224, and 02226
Published in Meteoritics & planetary science (01-07-2006)“…— LaPaz Icefield (LAP) 02205, 02226, and 02224 are paired stones of a crystalline basaltic lunar meteorite with a low‐Ti (3.21–3.43% TiO2) low‐Al (9.93–10.45%…”
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A cornucopia of presolar and early solar system materials at the micrometer size range in primitive chondrite matrix
Published in Meteoritics & planetary science (01-08-2007)“…— We have used a variety of complementary microanalytical techniques to constrain the mineralogy, trace‐element distributions, and oxygen‐isotopic compositions…”
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Transmission electron microscopy of cometary residues from micron-sized craters in the Stardust Al foils
Published in Meteoritics & planetary science (01-02-2008)“…— We report transmission electron microscopy (TEM) investigations of micro‐craters that originated from hypervelocity impacts of comet 81P/Wild 2 dust…”
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Analytical scanning and transmission electron microscopy of laboratory impacts on Stardust aluminum foils: Interpreting impact crater morphology and the composition of impact residues
Published in Meteoritics & planetary science (01-02-2007)“…— The known encounter velocity (6.1 kms−1) and particle incidence angle (perpendicular) between the Stardust spacecraft and the dust emanating from the nucleus…”
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TOF-SIMS analysis of crater residues from Wild 2 cometary particles on Stardust aluminum foil
Published in Meteoritics & planetary science (01-02-2008)“…— Impact residues of cometary particles on aluminum foils from the Stardust mission were investigated with TOF‐SIMS for their elemental and organic…”
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Comparison of Comet 81P/Wild 2 Dust with Interplanetary Dust from Comets
Published in Science (American Association for the Advancement of Science) (25-01-2008)“…The Stardust mission returned the first sample of a known outer solar system body, comet 81P/Wild 2, to Earth. The sample was expected to resemble chondritic…”
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Applied focused ion beam techniques for sample preparation of astromaterials for integrated nanoanalysis
Published in Meteoritics & planetary science (01-03-2008)“…— Sample preparation is always a critical step in the study of micrometer‐sized astromaterials available for study in the laboratory, whether their subsequent…”
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Preparation of large Stardust aluminum foil craters for analysis
Published in Meteoritics & planetary science (01-05-2018)“…Over the last decade, silica aerogel tracks and aluminum foil craters on the Stardust collector have been studied extensively to determine the nature of…”
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Lunar meteorite regolith breccias: An in situ study of impact melt composition using LA-ICP-MS with implications for the composition of the lunar crust
Published in Meteoritics & planetary science (01-06-2010)“…– Dar al Gani (DaG) 400, Meteorite Hills (MET) 01210, Pecora Escarpment (PCA) 02007, and MacAlpine Hills (MAC) 88104/88105 are lunar regolith breccia…”
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Impact ionisation mass spectrometry of polypyrrole-coated pyrrhotite microparticles
Published in Planetary and space science (01-07-2014)“…Cation and anion impact ionization mass spectra of polypyrrole-coated pyrrhotite cosmic dust analogue particles are analysed over a range of cosmically…”
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