Die 'presentation abstracts' zu
Sutter's Mill zum 75. Treffen der Meteoritical Society in Cairns, Australien gibt es hier:
http://www.lpi.usra.edu/meetings/metsoc2012/pdf/sess606.pdf http://www.lpi.usra.edu/meetings/metsoc2012/pdf/sess703.pdfEine kleine Auswahl:
ELEMENTAL COMPOSITION AND CHEMICAL
CLASSIFICATION OF SUTTER’S MILL CHONDRITES. J. M. Friedrich, D. S. Ebel, and P. Jenniskens
Results and Conclusions: The two aliquots yielded nearly
identical results, so on the 30 mg scale, the material was quite
homogeneous. Overall, the composition of SM2 is consistent
with a CM composition with respect to lithophile, siderophile,
and moderately volatile abundances. The refractory lithophiles
trend toward the high end of CM chondrites in the SM2 chip ana-
lyzed; however, the sample size is small. ...
We will present additional elemental analysis results on the
SM2 stone, as well as elemental analysis results on other stones
and lithologies: we anticipate these analyses to further confirm a
CM chondrite composition for Sutter’s Mill
http://www.lpi.usra.edu/meetings/metsoc2012/pdf/5301.pdfSUTTER’S MILL CM CHONDRITE: MINERALOGY,
PETROGRAPHY, BULK CHEMISTRY, ISOTOPES AND
MAGNETIC SUSCEPTIBILITY. Q.-Z. Yin , J. Wimpenny , A. Yamakawa , S. Roeske , and K. Verosub
http://www.lpi.usra.edu/meetings/metsoc2012/pdf/5276.pdf Accuracy was assessed by running a
number of known meteorite samples (Murchison, Allende,
Tagish Lake, Orgueil, Lance) and comparing our data with
published values. Our initial results normalized to Mg and CI and
plotted against condensation temperature clearly show CM-
affinity of the SM meteorite.
THE AMINO ACID COMPOSITION OF THE SUTTER'S
MILL CARBONACEOUS CHONDRITE. D. P. Glavin, A. S. Burton, J. E. Elsila, J. P. Dworkin
Results and Discussion: In contrast to the Murchison mete-
orite which had a complex distribution of amino acids with a to-
tal C 2 to C 5 amino acid abundance of ~14,000 parts-per-billion
(ppb) [2], the Sutter's Mill meteorite was found to be highly de-
pleted in amino acids. .... The low abundances
of amino acids in the Sutter's Mill meteorite is consistent with
mineralogical evidence that at least some parts of the Sutter's
Mill meteorite parent body experienced extensive aqueous and/or
thermal alteration [3-5].
http://www.lpi.usra.edu/meetings/metsoc2012/pdf/5237.pdfTHE DENSITY, POROSITY AND MAGNETIC
SUSCEPTIBILITY OF TWO RECENT METEORITE
FALLS: TISSINT AND SUTTER’S MILL. D. T. Britt, R. J. Macke, S.J., W. S. Kiefer, A. J. Irving, G. Hupé and G. J. Consolmagno, S.J.
http://www.lpi.usra.edu/meetings/metsoc2012/pdf/5350.pdfThe Sutter’s Mill meteorite (9.89 g) was a whole fusion-
crusted stone designated SM 19 by Jenniskens.
Bulk Density 2.31 ± 0.04 g/cm3
Grain Density 3.34 ± 0.02 g/cm3
Porosity 31.0% ± 1.4%
Magnetic susceptibility log χ = 4.30 ± 0.08
These values are consistent with measured data of CM carbo-
naceous chondrites [6], though above average for all physical
properties reported. The high porosity is in contrast with reports
of Sutter’s Mill “hardness” and resistance to cutting (G. Hupé and
D. Hill, personal communication).
UNUSUAL CHEMICAL DIVERSITY IN SOLVENT
SOLUBLE POLAR FRACTIONS OF THE SUTTER'S
MILL CARBONACEOUS CHONDRITE. Ph. Schmitt-Kopplin, M.Harir, N. Hertkorn, P. Jenniskens, M. Waiblinger, Z. Gabelica
http://www.lpi.usra.edu/meetings/metsoc2012/pdf/5359.pdf Wie in Ensisheim bereits angedeutet:
Sutter´s Mill samples have
the particularity to show only few structural characteristics when
compared to most of the other meteorites (ordinary and
carbonaceous chondrites) so far investigated by the same
technique.
Additional Information: We thank the finders of the
Sutter’s Mill meteorite for collecting material and making it
available for analysis.
Das Gesamtprogramm des 75. Treffens der Meteoritical Society ist hier zu sehen:
http://www.lpi.usra.edu/meetings/metsoc2012/pdf/program.pdf
