J L Kirschvink
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Explore the profile of J L Kirschvink including associated specialties, affiliations and a list of published articles.
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Articles
29
Citations
769
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Recent Articles
1.
Thomas-Keprta K, Bazylinski D, Kirschvink J, Clemett S, McKay D, Wentworth S, et al.
Geochim Cosmochim Acta
. 2001 Sep;
64(23):4049-81.
PMID: 11543573
Using transmission electron microscopy (TEM), we have analyzed magnetite (Fe3O4) crystals acid-extracted from carbonate globules in Martian meteorite ALH84001. We studied 594 magnetites from ALH84001 and grouped them into three...
2.
Kirschvink J, Walker M, Diebel C
Curr Opin Neurobiol
. 2001 Aug;
11(4):462-7.
PMID: 11502393
Orientation, navigation, and homing are critical traits expressed by organisms ranging from bacteria through higher vertebrates. Sensory systems that aid such behavior have provided key selective advantages to these groups...
3.
Physical and genetic characterization of the genome of Magnetospirillum magnetotacticum, strain MS-1
Bertani L, Weko J, Phillips K, Gray R, Kirschvink J
Gene
. 2001 Mar;
264(2):257-63.
PMID: 11250081
Pulsed-field gel analysis of Magnetospirillum magnetotacticum, strain MS-1, indicates that the genome is a single, circular structure of about 4.3 mb. A few genes, identified by sequence similarity, have been...
4.
Thomas-Keprta K, Clemett S, Bazylinski D, Kirschvink J, McKay D, Wentworth S, et al.
Proc Natl Acad Sci U S A
. 2001 Feb;
98(5):2164-9.
PMID: 11226210
McKay et al. [(1996) Science 273, 924-930] suggested that carbonate globules in the meteorite ALH84001 contained the fossil remains of Martian microbes. We have characterized a subpopulation of magnetite (Fe(3)O(4))...
5.
Weiss B, Kirschvink J, Baudenbacher F, Vali H, Peters N, Macdonald F, et al.
Science
. 2000 Oct;
290(5492):791-5.
PMID: 11052940
The ejection of material from Mars is thought to be caused by large impacts that would heat much of the ejecta to high temperatures. Images of the magnetic field of...
6.
Martin M, Grazhdankin D, Bowring S, Evans D, Fedonkin M, Kirschvink J
Science
. 2000 May;
288(5467):841-5.
PMID: 10797002
A uranium-lead zircon age for a volcanic ash interstratified with fossil-bearing, shallow marine siliciclastic rocks in the Zimnie Gory section of the White Sea region indicates that a diverse assemblage...
7.
Kirschvink J, Gaidos E, Bertani L, Beukes N, Gutzmer J, Maepa L, et al.
Proc Natl Acad Sci U S A
. 2000 Mar;
97(4):1400-5.
PMID: 10677473
Geological, geophysical, and geochemical data support a theory that Earth experienced several intervals of intense, global glaciation ("snowball Earth" conditions) during Precambrian time. This snowball model predicts that postglacial, greenhouse-induced...
8.
Gaidos E, Nealson K, Kirschvink J
Science
. 1999 Jun;
284(5420):1631-3.
PMID: 10383341
No abstract available.
9.
Bertani L, Huang J, Weir B, Kirschvink J
Gene
. 1997 Dec;
201(1-2):31-6.
PMID: 9409768
In order to investigate the role of bacterioferritin (Bfr) in the biomineralization of magnetite by microorganisms, we have cloned and sequenced the bfr genes from M. magnetotacticum. The organism has...
10.
Kirschvink J, Maine A, Vali H
Science
. 1997 Mar;
275(5306):1629-33.
PMID: 9054354
Indirect evidence for life on Mars has been reported from the study of meteorite ALH84001. The formation temperature of the carbonates is controversial; some estimates suggest 20 degrees to 80...