Conel M OD Alexander
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Explore the profile of Conel M OD Alexander including associated specialties, affiliations and a list of published articles.
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26
Citations
284
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Recent Articles
21.
Alexander C
Philos Trans A Math Phys Eng Sci
. 2017 Apr;
375(2094).
PMID: 28416723
Of the potential volatile sources for the terrestrial planets, the CI and CM carbonaceous chondrites are closest to the planets' bulk H and N isotopic compositions. For the Earth, the...
22.
Davidson J, Schrader D, Alexander C, Lauretta D, Busemann H, Franchi I, et al.
Meteorit Planet Sci
. 2015 Dec;
49(12):2133-2151.
PMID: 26640360
Here, we report the mineralogy, petrography, C-N-O-stable isotope compositions, degree of disorder of organic matter, and abundances of presolar components of the chondrite Roberts Massif (RBT) 04133 using a coordinated,...
23.
Cleeves L, Bergin E, Alexander C, Du F, Graninger D, Oberg K, et al.
Science
. 2014 Sep;
345(6204):1590-3.
PMID: 25258075
Identifying the source of Earth's water is central to understanding the origins of life-fostering environments and to assessing the prevalence of such environments in space. Water throughout the solar system...
24.
Herd C, Blinova A, Simkus D, Huang Y, Tarozo R, Alexander C, et al.
Science
. 2011 Jun;
332(6035):1304-7.
PMID: 21659601
The complex suite of organic materials in carbonaceous chondrite meteorites probably originally formed in the interstellar medium and/or the solar protoplanetary disk, but was subsequently modified in the meteorites' asteroidal...
25.
Sandford S, Aleon J, Alexander C, Araki T, Bajt S, Baratta G, et al.
Science
. 2006 Dec;
314(5806):1720-4.
PMID: 17170291
Organics found in comet 81P/Wild 2 samples show a heterogeneous and unequilibrated distribution in abundance and composition. Some organics are similar, but not identical, to those in interplanetary dust particles...
26.
Brownlee D, Tsou P, Aleon J, Alexander C, Araki T, Bajt S, et al.
Science
. 2006 Dec;
314(5806):1711-6.
PMID: 17170289
The Stardust spacecraft collected thousands of particles from comet 81P/Wild 2 and returned them to Earth for laboratory study. The preliminary examination of these samples shows that the nonvolatile portion...
27.
Cuzzi J, Alexander C
Nature
. 2006 May;
441(7092):483-5.
PMID: 16724060
Chondrules are millimetre-sized spherules (mostly silicate) that dominate the texture of primitive meteorites. Their formation mechanism is debated, but their sheer abundance suggests that the mechanism was both energetic and...
28.
Busemann H, Young A, Alexander C, Hoppe P, Mukhopadhyay S, Nittler L
Science
. 2006 May;
312(5774):727-30.
PMID: 16675696
Organic matter in extraterrestrial materials has isotopic anomalies in hydrogen and nitrogen that suggest an origin in the presolar molecular cloud or perhaps in the protoplanetary disk. Interplanetary dust particles...
29.
Stroud R, Nittler L, Alexander C
Science
. 2004 Sep;
305(5689):1455-7.
PMID: 15353800
We report microstructural and isotopic analyses of two presolar Al2O3 grains. Aluminum oxide is important cosmically, because its presence has been detected in the infrared spectra of the circumstellar envelopes...