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Cited by 105Planetary Science and ExplorationAstro and Planetary ScienceGeomagnetism and Paleomagnetism Studies

The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.

Magnetite whiskers and platelets in the ALH84001 Martian meteorite: Evidence of vapor phase growth

Bradley, John P., Harvey, Ralph P., McSween, Harry Y.·1996·Geochimica et Cosmochimica Acta
DOI 10.1016/s0016-7037(96)00383-3
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Abstract

Nanometer-sized magnetite crystals associated with carbonates in fracture zones within Martian meteorite ALH84001 have been examined using analytical transmission electron microscopy. Some of the crystals exhibit distinctive morphologies: filamentary rods and ribbon, and platelets. The rods and ribbons are elongated along the crystallographic [100] and [111] directions. Some of the rods contain microstructural defects indicating that they grew by spiral growth about screw dislocations. Platelets are flattened along the [100] and [110] directions. These unique morphologies and microstructures constrain the growth conditions of magnetite. The whiskers and platelets most likely formed in the temperature range 500-800 degrees C by direct condensation from a vapor or precipitation from a supercritical fluid, and their properties are inconsistent with a biogenic origin.

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Citations

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Research works printed but not linked: 41

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Metadata

Authors
Bradley, J. P., Harvey, R. P., & McSween, H. Y.
Affiliations
  • Georgia Institute of Technology (US)
  • Case Western Reserve University (US)
  • University of Tennessee at Knoxville (US)
ORCID
Venue
Geochimica et Cosmochimica Acta
Publisher
Elsevier BV
Published
1996-12
Volume
60
Issue
24
Pages
5149-5155
ISSN
0016-7037 (ISSN-L)
DOI
10.1016/s0016-7037(96)00383-3
OpenAlex
W2081654683
Cited by
105
References
1
Citations by year
2025: 1 · 2024: 2 · 2023: 1 · 2022: 1 · 2021: 1 · 2020: 4 · 2018: 3 · 2016: 2 · 2015: 2 · 2014: 4 · 2013: 1 · 2012: 2
FWCI
11.82
Type
journal article
Language
en
Open access
closed
Licence
www.elsevier.com/tdm/userlicense/1.0/ (tdm)
Locations
  • Geochimica et Cosmochimica Acta (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Physical Sciences › Earth and Planetary Sciences › Space and Planetary Science › Planetary Science and Exploration
  • Physical Sciences › Earth and Planetary Sciences › Space and Planetary Science › Astro and Planetary Science
  • Physical Sciences › Earth and Planetary Sciences › Geophysics › Geomagnetism and Paleomagnetism Studies
Keywords
ALH84001, Martian meteorites, vapor growth, crystal morphology, spiral growth, screw dislocations, microstructural defects, fracture zones, carbonates, biogenic origin
MeSH terms
Carbonates, Hot Temperature, Iron, Microscopy, Electron, Oxides, Earth, Planet, Mars, Meteoroids, Ferrosoferric Oxide

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