Matches in SemOpenAlex for { <https://semopenalex.org/work/W2174690900> ?p ?o ?g. }
- W2174690900 endingPage "2044" @default.
- W2174690900 startingPage "2024" @default.
- W2174690900 abstract "Abstract We present a study of the petrology and geochemistry of basaltic shergottite Northwest Africa 2975 ( NWA 2975). NWA 2975 is a medium‐grained basalt with subophitic to granular texture. Electron microprobe ( EMP ) analyses show two distinct pyroxene compositional trends and patchy compositional zoning patterns distinct from those observed in other meteorites such as Shergotty or QUE 94201. As no bulk sample was available to us for whole rock measurements, we characterized the fusion crust and its variability by secondary ion mass spectrometer ( SIMS ) measurements and laser ablation inductively coupled plasma spectroscopy ( LA ‐ ICP ‐ MS ) analyses as a best‐available proxy for the bulk rock composition. The fusion crust major element composition is comparable to the bulk composition of other enriched basaltic shergottites, placing NWA 2975 within that sample group. The CI ‐normalized REE (rare earth element) patterns are flat and also parallel to those of other enriched basaltic shergottites. Merrillite is the major REE carrier and has a flat REE pattern with slight depletion of Eu, parallel to REE patterns of merrillites from other basaltic shergottites. The oxidation state of NWA 2975 calculated from Fe‐Ti oxide pairs is NNO ‐1.86, close to the QFM buffer. NWA 2975 represents a sample from the oxidized and enriched shergottite group, and our measurements and constraints on its origin are consistent with the hypothesis of two distinct Martian mantle reservoirs: a reduced, LREE ‐depleted reservoir and an oxidized, LREE ‐enriched reservoir. Stishovite, possibly seifertite, and dense SiO 2 glass were also identified in the meteorite, allowing us to infer that NWA 2975 experienced a realistic shock pressure of ~30 GPa." @default.
- W2174690900 created "2016-06-24" @default.
- W2174690900 creator A5006373750 @default.
- W2174690900 creator A5037705648 @default.
- W2174690900 creator A5048629763 @default.
- W2174690900 creator A5059762097 @default.
- W2174690900 creator A5075159980 @default.
- W2174690900 creator A5077499845 @default.
- W2174690900 date "2015-11-13" @default.
- W2174690900 modified "2023-10-17" @default.
- W2174690900 title "Petrography and geochemistry of the enriched basaltic shergottite Northwest Africa 2975" @default.
- W2174690900 cites W1524079998 @default.
- W2174690900 cites W1568723416 @default.
- W2174690900 cites W1644811106 @default.
- W2174690900 cites W1809270245 @default.
- W2174690900 cites W1972188578 @default.
- W2174690900 cites W1972672436 @default.
- W2174690900 cites W1974933792 @default.
- W2174690900 cites W1977287712 @default.
- W2174690900 cites W1979307763 @default.
- W2174690900 cites W1980987967 @default.
- W2174690900 cites W1982138141 @default.
- W2174690900 cites W1983049666 @default.
- W2174690900 cites W1985341193 @default.
- W2174690900 cites W1986242722 @default.
- W2174690900 cites W1987924662 @default.
- W2174690900 cites W1988339658 @default.
- W2174690900 cites W1990823670 @default.
- W2174690900 cites W1994608247 @default.
- W2174690900 cites W1999929652 @default.
- W2174690900 cites W2002703133 @default.
- W2174690900 cites W2006278359 @default.
- W2174690900 cites W2007608089 @default.
- W2174690900 cites W2008314500 @default.
- W2174690900 cites W2011670971 @default.
- W2174690900 cites W2013761444 @default.
- W2174690900 cites W2019256198 @default.
- W2174690900 cites W2022372033 @default.
- W2174690900 cites W2026010165 @default.
- W2174690900 cites W2030589668 @default.
- W2174690900 cites W2033620099 @default.
- W2174690900 cites W2035390247 @default.
- W2174690900 cites W2038845141 @default.
- W2174690900 cites W2039706338 @default.
- W2174690900 cites W2040807950 @default.
- W2174690900 cites W2042941793 @default.
- W2174690900 cites W2043063526 @default.
- W2174690900 cites W2043545892 @default.
- W2174690900 cites W2044138916 @default.
- W2174690900 cites W2044604297 @default.
- W2174690900 cites W2048091267 @default.
- W2174690900 cites W2048335161 @default.
- W2174690900 cites W2049188728 @default.
- W2174690900 cites W2049242258 @default.
- W2174690900 cites W2049345115 @default.
- W2174690900 cites W2050922823 @default.
- W2174690900 cites W2051176315 @default.
- W2174690900 cites W2051876814 @default.
- W2174690900 cites W2052082759 @default.
- W2174690900 cites W2058490020 @default.
- W2174690900 cites W2060405520 @default.
- W2174690900 cites W2063711302 @default.
- W2174690900 cites W2066945610 @default.
- W2174690900 cites W2069393679 @default.
- W2174690900 cites W2072310385 @default.
- W2174690900 cites W2075534263 @default.
- W2174690900 cites W2076648493 @default.
- W2174690900 cites W2076660811 @default.
- W2174690900 cites W2077455488 @default.
- W2174690900 cites W2080263813 @default.
- W2174690900 cites W2081266067 @default.
- W2174690900 cites W2088205901 @default.
- W2174690900 cites W2092980478 @default.
- W2174690900 cites W2093914876 @default.
- W2174690900 cites W2101757077 @default.
- W2174690900 cites W2110929391 @default.
- W2174690900 cites W2114057247 @default.
- W2174690900 cites W2115220735 @default.
- W2174690900 cites W2117726746 @default.
- W2174690900 cites W2129489763 @default.
- W2174690900 cites W2132289090 @default.
- W2174690900 cites W2133042542 @default.
- W2174690900 cites W2133153452 @default.
- W2174690900 cites W2141190941 @default.
- W2174690900 cites W2143855186 @default.
- W2174690900 cites W2170352494 @default.
- W2174690900 cites W2174898332 @default.
- W2174690900 cites W2306872687 @default.
- W2174690900 cites W2403988321 @default.
- W2174690900 cites W2413455329 @default.
- W2174690900 cites W2506045308 @default.
- W2174690900 cites W2899606022 @default.
- W2174690900 cites W4249619451 @default.
- W2174690900 doi "https://doi.org/10.1111/maps.12571" @default.
- W2174690900 hasPublicationYear "2015" @default.
- W2174690900 type Work @default.
- W2174690900 sameAs 2174690900 @default.
- W2174690900 citedByCount "16" @default.