Identification of possible source craters for Martian meteorite ALH84001

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

Twelve meteorites are currently believed to be samples from the Martian surface. Eleven of these meteorites, called the shergottites, nakhlites, and chassignites (or SNC meteorites), have young formation ages (≤1.3 × 109 yr). The twelfth Martian meteorite, ALH84001, is very ancient (4.5 × 109 yr). The differences in formation ages and composition suggest that these twelve meteorites came from at least two and possibly three or more different source craters on Mars. The eleven SNC meteorites are from a young volcanic area, likely the Tharsis Region in the western hemisphere of Mars. Previous studies have identified up to nine possible source craters for these meteorites. The old Martian meteorite, ALH84001, must be from the ancient terrain of Mars, which covers about 40% of the planet primarily in the southern hemisphere. A search through the 42,283-entryCatalog of Large Martian Impact Craters has produced 23 possible source craters, which upon further photogeologic analysis has been reduced to two strong candidates and six runners-up.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
EditorsR.B. Hoover
Pages26-35
Number of pages10
Volume3111
DOIs
StatePublished - 1997
Externally publishedYes
EventInstruments, Methods and Missions for the Investigation of Extraterrestrial Microorganisms - San Diego, CA, United States
Duration: Jul 29 1997Aug 1 1997

Other

OtherInstruments, Methods and Missions for the Investigation of Extraterrestrial Microorganisms
CountryUnited States
CitySan Diego, CA
Period7/29/978/1/97

Fingerprint

SNC meteorites
Meteorites
meteorites
craters
mars
chassignites
nakhlites
shergottites
Western hemisphere
Southern Hemisphere
planets
volcanology
Planets

Keywords

  • ALH84001
  • Impact craters
  • Mars
  • Martian meteorites
  • SNC meteorites

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Barlow, N. (1997). Identification of possible source craters for Martian meteorite ALH84001. In R. B. Hoover (Ed.), Proceedings of SPIE - The International Society for Optical Engineering (Vol. 3111, pp. 26-35) https://doi.org/10.1117/12.278772

Identification of possible source craters for Martian meteorite ALH84001. / Barlow, Nadine.

Proceedings of SPIE - The International Society for Optical Engineering. ed. / R.B. Hoover. Vol. 3111 1997. p. 26-35.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Barlow, N 1997, Identification of possible source craters for Martian meteorite ALH84001. in RB Hoover (ed.), Proceedings of SPIE - The International Society for Optical Engineering. vol. 3111, pp. 26-35, Instruments, Methods and Missions for the Investigation of Extraterrestrial Microorganisms, San Diego, CA, United States, 7/29/97. https://doi.org/10.1117/12.278772
Barlow N. Identification of possible source craters for Martian meteorite ALH84001. In Hoover RB, editor, Proceedings of SPIE - The International Society for Optical Engineering. Vol. 3111. 1997. p. 26-35 https://doi.org/10.1117/12.278772
Barlow, Nadine. / Identification of possible source craters for Martian meteorite ALH84001. Proceedings of SPIE - The International Society for Optical Engineering. editor / R.B. Hoover. Vol. 3111 1997. pp. 26-35
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