Linked Life Data

11543077

Source:http://linkedlifedata.com/resource/pubmed/id/11543077

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2000-6-15
pubmed:abstractText
One of the five lines of evidence used by McKay et al. (1996) for relic life in the Martian meteorite Allan Hills (ALH) 84001 was the presence of objects thought to be microfossils. These ovoid and elongated forms are similar to structures found in terrestrial rocks and described as "nanobacteria" (Folk, 1993; McBride et al., 1994). Using the same procedures and apparatus as McKay et al. (1996), we have found structures on internal fracture surfaces of lunar meteorites that cannot be distinguished from the objects described on similar surfaces in ALH 84001. The lunar surface is currently a sterile environment and probably always has been. However, the lunar and Martian meteorites share a common terrestrial history, which includes many thousands of years of exposure to Antarctic weathering. Although we do not know the origin of these ovoid and elongated forms, we suggest that their presence on lunar meteorites indicates that the objects described by McKay et al. (1996) are not of Martian biological origin.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
S
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
1086-9379
pubmed:author
pubmed:issnType
Print
pubmed:volume
33
pubmed:owner
NASA
pubmed:authorsComplete
Y
pubmed:pagination
791-4
pubmed:dateRevised
2008-4-2
pubmed:meshHeading
pubmed:year
1998
pubmed:articleTitle
Martian "microfossils" in lunar meteorites?
pubmed:affiliation
Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville 72701, USA. cosmo@uafsysb,uark.edu
pubmed:publicationType
Journal Article, Comparative Study, Research Support, U.S. Gov't, Non-P.H.S., Research Support, Non-U.S. Gov't