Autor Thema: Sutter's Mill - 22.04.2012 - Bolide über USA California/Nevada  (Gelesen 47550 mal)

Offline karmaka

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Re: Sutter's Mill - 22.04.2012 - Bolide über USA California/Nevada
« Antwort #255 am: Januar 26, 2013, 23:19:37 nachm. »
Vier Tage (22.-26.4.2012) einer Meteoritenjagd:

http://www.youtube.com/watch?v=pCZm3KwQbME

Zu sehen ist gleich am Anfang auch Brenda Salveson mit ihrem gerade gemachten 17g-Fund SM #4

 :hut:

Martin

Offline karmaka

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Re: Sutter's Mill - 22.04.2012 - Bolide über USA California/Nevada
« Antwort #256 am: Januar 30, 2013, 22:39:23 nachm. »
Da wir gerade dabei (44th LPSC Science Conference) sind, soll auch die andere schwarze Schönheit nicht zu kurz kommen:

Sutter's Mill Meteorite Oxygen Isotopes: More Evidence for Water-Rock Open System Alteration
http://www.lpi.usra.edu/meetings/lpsc2013/pdf/3005.pdf

Light Element Geochemistry and Spectroscopy of the Sutter’s Mill Carbonaceous Chondrite
http://www.lpi.usra.edu/meetings/lpsc2013/pdf/3000.pdf

Faster Recovery, Better Science: Meteorite Fall Events Detected with Weather Radars and Seismometers in 2012
http://www.lpi.usra.edu/meetings/lpsc2013/pdf/2935.pdf

Analysis of Carboxylic Acid Compounds in the Sutter's Mill Meteorite
http://www.lpi.usra.edu/meetings/lpsc2013/pdf/2916.pdf

Calcium-Sulfur-Chlorine Bearing Phases Within Sutter's Mill Sample SM3 (Pre-Rain)
http://www.lpi.usra.edu/meetings/lpsc2013/pdf/2810.pdf

Exposure Age of Sutter’s Mill Carbonaceous Chondrite
http://www.lpi.usra.edu/meetings/lpsc2013/pdf/2696.pdf

The Chromium Isotopic Studies of Sutter's Mill CM-type Carbonaceous Chondrite: Implications for Isotopic Heterogeneities of the Solar System
http://www.lpi.usra.edu/meetings/lpsc2013/pdf/2418.pdf

Sutter's Mill: Using Computed Tomography to Curate Scientifically Important Meteorites
http://www.lpi.usra.edu/meetings/lpsc2013/pdf/2297.pdf

The Nature of C Asteroid Regolith from Meteorite Observations
http://www.lpi.usra.edu/meetings/lpsc2013/pdf/2179.pdf

Mineralogy of the Sutter's Mill Carbonaceous Chondrite
http://www.lpi.usra.edu/meetings/lpsc2013/pdf/2148.pdf

Organic Analysis of Sutter's Mill Chondrite Using C-XANES
http://www.lpi.usra.edu/meetings/lpsc2013/pdf/2118.pdf

^187Re-^187Os Isotopic and Highly Siderophile Element Abundance Systematics of the Sutter's Mill Meteorite: Clues to Late-Stage Secondary Processes Acting on Chondrites
http://www.lpi.usra.edu/meetings/lpsc2013/pdf/1964.pdf

Noble Gases and Cosmic Ray Exposure of Sutter's Mill CM Chondrite
http://www.lpi.usra.edu/meetings/lpsc2013/pdf/1849.pdf

Timing of Fine-Grained Rim Formation in the Sutter's Mill CM Chondrite
http://www.lpi.usra.edu/meetings/lpsc2013/pdf/1692.pdf

Mid-Infrared Study of Samples from Several Stones from the Sutter's Mill Meteorite
http://www.lpi.usra.edu/meetings/lpsc2013/pdf/1663.pdf

Infrared Analyses of Minerals and Organics in the Sutter's Mill Meteorite
http://www.lpi.usra.edu/meetings/lpsc2013/pdf/1595.pdf

Thermal History of Sutter's Mill CM Carbonaceous Chondrite Fall from Water-Abundance and the Structure of its Organic Matter
http://www.lpi.usra.edu/meetings/lpsc2013/pdf/1521.pdf

The Abundance and Enantiomeric Composition of Amino Acids in the Sutter's Mill Carbonaceous Chondrite
http://www.lpi.usra.edu/meetings/lpsc2013/pdf/1189.pdf

 :dizzy: :einaugeblinzel:

Offline karmaka

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Re: Sutter's Mill - 22.04.2012 - Bolide über USA California/Nevada
« Antwort #257 am: April 16, 2013, 07:59:03 vorm. »
Ein neuer kurzer 'Werbefilm' von UC Davis über Sutter' Mill, fast ein Jahr nach dem Fall

VIDEO-LINK

Offline karmaka

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Re: Sutter's Mill - 22.04.2012 - Bolide über USA California/Nevada
« Antwort #258 am: April 22, 2013, 14:51:11 nachm. »
BOOOOOM !

Nun ist es genau ein Jahr her:

14:51:10 Uhr MESZ / 7:51:10 Ortszeit

Sutter's Mill

Einige der ersten Berichte:

VIDEO-LINK
VIDEO-LINK
VIDEO-LINK

« Letzte Änderung: April 22, 2013, 15:06:50 nachm. von karmaka »

Offline karmaka

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Re: Sutter's Mill - 22.04.2012 - Bolide über USA California/Nevada
« Antwort #259 am: April 29, 2013, 00:11:12 vorm. »
Jetzt wissen wir auch endlich wo das größte Sutter's Mill Exemplar (205,2 g) abgeblieben ist...........

VIDEO-LINK

Hmmmh........
« Letzte Änderung: April 29, 2013, 00:29:55 vorm. von karmaka »

Offline karmaka

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Re: Sutter's Mill - 22.04.2012 - Bolide über USA California/Nevada
« Antwort #260 am: April 29, 2013, 09:22:40 vorm. »
Es müsste sich um dieses 205,2 Gramm Exemplar handeln, denke ich:

FOTO-LINK 1
FOTO-LINK 2
FOTO-LINK 3
FOTO-LINK 4

Die Fotos wurden in den Tagen nach dem Fund durch Jeffrey Grant A. am 11.5.12 gemacht.

QUELLE

Offline karmaka

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Re: Sutter's Mill - 22.04.2012 - Bolide über USA California/Nevada
« Antwort #261 am: August 20, 2013, 17:35:25 nachm. »
Die Hauptmasse wurde nun von fünf renommierten Instituten in den USA (UCA Davis, ASU, Museum of Natural History in Washington, American Museum of Natural History in New York, Field Museum) zum Erhalt gekauft, soll aber leider zersägt werden... :crying:

Main Mass of Sutter's Mill: SM53 CutLines Acquired by Five Institutions Consortium

VIDEO-LINK

Zitat
The main mass of the Sutter's Mill meteorite fall (on April 22, 2012, California's Sierra foot hills), SM 53 weighing 205 gram, was acquired by a consortium of five institutions on August 21, 2013 for permanent preservation and scientific research purposes. The X-ray CT scan of the main mass shows the cutlines for the five institutions: University of California at Davis, California (cyan 5%), Arizona State University in Tempe, Arizona (yellow 13%), the Smithsonian Institution's National Museum of Natural History in Washington, D.C. (red 32%), American Museum of Natural History in New York City (green 34%), and The Field Museum of Natural History in Chicago (blue 16%).
This is the first consortium meteorite acquisition that was X-ray CT scanned prior to its division, allowing its cutting with prior knowledge of the contents of each piece with advanced intelligence of the 3-D internal distribution of the types of material.
The X-ray CT was performed at Center for Molecular and Genomic Imaging at UC Davis by Dr. Doug Rowland with Xradia MicroXCT-200 for the consortium.
Image resolution: 44.9 micron/voxel, Field of View: palm size



Main mass of Sutter's Mill: SM53 Slices with scalebar

VIDEO-LINK

Zitat
The main mass of the Sutter's Mill meteorite fall (on April 22, 2012, California's Sierra foot hills), SM 53 weighing 205 gram, was acquired by a consortium of five institutions on August 21, 2013 for permanent preservation and scientific research purposes. The five institutions: University of California at Davis, California, Arizona State University in Tempe, Arizona, the Smithsonian Institution's National Museum of Natural History in Washington, D.C., American Museum of Natural History in New York City, and The Field Museum of Natural History in Chicago.
This is the first consortium meteorite acquisition that was X-ray CT scanned prior to its division, allowing its cutting with prior knowledge of the contents of each piece with advanced intelligence of the 3-D internal distribution of the types of material.
The X-ray CT was performed at Center for Molecular and Genomic Imaging at UC Davis by Dr. Doug Rowland with Xradia MicroXCT-200 for the consortium.
Image resolution: 44.9 micron/voxel, Field of View: see scale bars


Main Mass of Sutter's Mill SM53 Volume Rendering

VIDEO-LINK

Zitat
The X-ray CT was performed at Center for Molecular and Genomic Imaging at UC Davis by Dr. Doug Rowland with Xradia MicroXCT-200 for the consortium.
Image resolution: 44.9 micron/voxel, Field of View: palm size
« Letzte Änderung: August 20, 2013, 18:03:34 nachm. von karmaka »

Offline Murchison´s friend

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Re: Sutter's Mill - 22.04.2012 - Bolide über USA California/Nevada
« Antwort #262 am: August 20, 2013, 18:35:01 nachm. »
Lieber Martin,

danke !

Du bist der Meister im Auffinden der neuesten und faszinierensten Beiträge !

Bei diesem Sutter`s Mill frage ich mich : wenn dieser wunderbare Stein reden könnte, was für grandiose
                                                         Geschichten er uns aus seinem langen Leben erzählen würde !


LG,
Michael
Murchison`s friend ist für alles Neue offen - besonders um Meteorite zu finden !

Offline karmaka

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Re: Sutter's Mill - 22.04.2012 - Bolide über USA California/Nevada
« Antwort #263 am: August 21, 2013, 19:04:43 nachm. »
Der Metlist-Hinweis von Ron muss natürlich auch in diesen thread:

LINK

LINK

'Gefünfteilt' :

LINK

Die kurze Hintergrund-Geschichte zur Meldung:

Zitat
Arizona State University’s Meenakshi Wadhwa, director of the Center for Meteorite Studies, was contacted by Robert Haag, the private collector who owned the main mass. She then contacted the other institutions to initiate its joint acquisition.
« Letzte Änderung: August 21, 2013, 19:20:40 nachm. von karmaka »

Offline karmaka

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Re: Sutter's Mill - 22.04.2012 - Bolide über USA California/Nevada
« Antwort #264 am: September 09, 2013, 21:47:04 nachm. »
Meteorite that fell last year contains surprising molecules

LINK

Processing of meteoritic organic materials as a possible analog of early molecular evolution in planetary environments

Sandra Pizzarello, Stephen K. Davidowski, Gregory P. Holland, and Lynda B. Williams

Department of Chemistry and Biochemistry and School of Earth and Space Exploration, Arizona State University

LINK

Supporting information:

PDF-LINK

Zitat
The data reported here suggest a far larger availability of meteoritic organic materials for planetary environments than previously assumed and that molecular evolution on the early Earth could have benefited from accretion of carbonaceous meteorites both directly with soluble compounds and, for a more protracted time, through alteration, processing, and release from their insoluble organic materials.

Zitat
The composition of the Sutter’s Mill meteorite insoluble organic material was studied both in toto by solid-state NMR spectroscopy of the powders and by gas chromatography–mass spectrometry analyses of compounds released upon their hydrothermal treatment. Results were compared with those obtained for other meteorites of diverse classifications (Murray, GRA 95229, Murchison, Orgueil, and Tagish Lake) and found to be so far unique in regard to the molecular species released. These include, in addition to O-containing aromatic compounds, complex polyether- and ester-containing alkyl molecules of prebiotic appeal and never detected in meteorites before. The Sutter’s Mill fragments we analyzed had likely been altered by heat, and the hydrothermal conditions of the experiments realistically mimic early Earth settings, such as near volcanic activity or impact craters. On this basis, the data suggest a far larger availability of meteoritic organic materials for planetary environments than previously assumed and that molecular evolution on the early Earth could have benefited from accretion of carbonaceous meteorites both directly with soluble compounds and, for a more protracted time, through alteration, processing, and release from their insoluble organic materials.




Offline karmaka

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Re: Sutter's Mill - 22.04.2012 - Bolide über USA California/Nevada
« Antwort #265 am: Januar 07, 2014, 22:08:37 nachm. »
Meenakshi Wadhwa stellt das Sutter's Mill Exemplar der Arizona State University vor  :smile:

VIDEO-LINK

Es müsste das gelbe Stück (13%) von SM 53 (205g, Ex-Haag) sein:

VIDEO-LINK
« Letzte Änderung: Januar 07, 2014, 22:30:54 nachm. von karmaka »

Offline karmaka

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Re: Sutter's Mill - 22.04.2012 - Bolide über USA California/Nevada
« Antwort #266 am: März 04, 2014, 11:28:52 vorm. »
Dicarbonsäuren in Sutter's Mill

Sutter's Mill dicarboxylic acids as possible tracers of parent-body alteration processes

Sandra Pizzarello, Laurence A. J. Garvie

LINK

first published online: Meteoritics & Planetary Science , 26 FEB 2014 ; DOI: 10.1111/maps.12264

Zitat
Abstract

Dicarboxylic acids were searched for in three Sutter's Mill (SM) fragments (SM2 collected prerain, SM12, and SM41) and found to occur almost exclusively as linear species of 3- to 14-carbon long. Between these, concentrations were low, with measured quantities typically less than 10 nmole g−1 of meteorite and a maximum of 6.8 nmole g−1 of meteorite for suberic acid in SM12. The SM acids' molecular distribution is consistent with a nonbiological origin and differs from those of CMs, such as Murchison or Murray, and of some stones of the C2-ungrouped Tagish Lake meteorite, where they are abundant and varied. Powder X-ray diffraction of SM12 and SM41 show them to be dominated by clays/amorphous material, with lesser amounts of Fe-sulfides, magnetite, and calcite. Thermal gravimetric (TG) analysis shows mass losses up to 1000 °C of 11.4% (SM12) and 9.4% (SM41). These losses are low compared with other clay-rich carbonaceous chondrites, such as Murchison (14.5%) and Orgueil (21.1%). The TG data are indicative of partially dehydrated clays, in accordance with published work on SM2, for which mineralogical studies suggest asteroidal heating to around 500 °C. In view of these compositional traits and mineralogical features, it is suggested that the dicarboxylic acids observed in the SM fragments we analyzed likely represent a combination of molecular species original to the meteorite as well as secondary products formed during parent-body alteration processes, such as asteroidal heating.

Offline karmaka

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Re: Sutter's Mill - 22.04.2012 - Bolide über USA California/Nevada
« Antwort #267 am: März 11, 2014, 13:59:31 nachm. »
Detection and rapid recovery of the Sutter's Mill meteorite fall as a model for future recoveries worldwide

Marc Fries, Lucille Le Corre, Mike Hankey, Jeff Fries, Robert Matson, Jake Schaefer, Vishnu Reddy

Meteoritics & Planetary Science, 4 MAR 2014, DOI: 10.1111/maps.12249

LINK

Zitat
Scientific analysis of the collected meteorites revealed characteristics that were available for study only because the rapid collection of samples had minimized terrestrial contamination/alteration. This combination of factors—rapid and accurate location of the event, participation in the meteorite search by the public, and coordinated scientific investigation of recovered samples—is a model that was widely beneficial and should be emulated in future meteorite falls.

Mich würde sehr interessieren, ob sich ein entsprechendes Netzwerk aus Wetterradarstationen nicht auch in Deutschland entsprechend nutzen lässt.

Vielleicht sollte man dies einmal konkret gedanklich durchspielen.

Zitat
Abstract

The Sutter's Mill C-type meteorite fall occurred on 22 April 2012 in and around the town of Coloma, California. The exact location of the meteorite fall was determined within hours of the event using a combination of eyewitness reports, weather radar imagery, and seismometry data. Recovery of the first meteorites occurred within 2 days and continued for months afterward. The recovery effort included local citizens, scientists, and meteorite hunters, and featured coordination efforts by local scientific institutions. Scientific analysis of the collected meteorites revealed characteristics that were available for study only because the rapid collection of samples had minimized terrestrial contamination/alteration. This combination of factors—rapid and accurate location of the event, participation in the meteorite search by the public, and coordinated scientific investigation of recovered samples—is a model that was widely beneficial and should be emulated in future meteorite falls. The tools necessary to recreate the Sutter's Mill recovery are available, but are currently underutilized in much of the world. Weather radar networks, scientific institutions with interest in meteoritics, and the interested public are available globally. Therefore, it is possible to repeat the Sutter's Mill recovery model for future meteorite falls around the world, each for relatively little cost with a dedicated researcher. Doing so will significantly increase the number of fresh meteorite falls available for study, provide meteorite material that can serve as the nuclei of new meteorite collections, and will improve the public visibility of meteoritics research.

Offline karmaka

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Re: Sutter's Mill - 22.04.2012 - Bolide über USA California/Nevada
« Antwort #268 am: März 27, 2014, 12:10:30 nachm. »
Ein Vergleich (pre-rain SM2 und post-rain SM12 and SM51) zur Beschreibung der terrestrischen Kontamination mit Aminosäuren. Man kann diese Ergebnisse auch indirekt als wissenschaftliches Plädoyer für sehr schnelle kooperative Anstrengungen zum Auffinden und Sicherstellen frisch gefallener Meteorite lesen. Ähnliche Bemühungen der Einbindung qualifizierter Amateure sehen wir in den letzten Tagen durch Phil McCausland (University of Western Ontario) bei der Meteoritensuche um Aylmer und St. Thomas in Ontario, Kanada (Meteor vom 18. März (~22.24 Uhr Ortszeit) / siehe auch Radiointerview mit Phil McCausland unten)

The amino acid composition of the Sutter's Mill CM2 carbonaceous chondrite

Aaron S. Burton, Daniel P. Glavin, Jamie E. Elsila, Jason P. Dworkin, Peter Jenniskens and Qing-Zhu Yin

Meteoritics & Planetary Science, article first published online: 22 MAR 2014 ; DOI: 10.1111/maps.12281

LINK

Zitat
Abstract

We determined the abundances and enantiomeric compositions of amino acids in Sutter's Mill fragment #2 (designated SM2) recovered prior to heavy rains that fell April 25–26, 2012, and two other meteorite fragments, SM12 and SM51, that were recovered postrain. We also determined the abundance, enantiomeric, and isotopic compositions of amino acids in soil from the recovery site of fragment SM51. The three meteorite stones experienced terrestrial amino acid contamination, as evidenced by the low d/l ratios of several proteinogenic amino acids. The d/l ratios were higher in SM2 than in SM12 and SM51, consistent with rain introducing additional l-amino acid contaminants to SM12 and SM51. Higher percentages of glycine, β-alanine, and γ-amino-n-butyric acid were observed in free form in SM2 and SM51 compared with the soil, suggesting that these free amino acids may be indigenous. Trace levels of d+l-β-aminoisobutyric acid (β-AIB) observed in all three meteorites are not easily explained as terrestrial contamination, as β-AIB is rare on Earth and was not detected in the soil. Bulk carbon and nitrogen and isotopic ratios of the SM samples and the soil also indicate terrestrial contamination, as does compound-specific isotopic analysis of the amino acids in the soil. The amino acid abundances in SM2, the most pristine SM meteorite analyzed here, are approximately 20-fold lower than in the Murchison CM2 carbonaceous chondrite. This may be due to thermal metamorphism in the Sutter's Mill parent body at temperatures greater than observed for other aqueously altered CM2 meteorites.

Search continues for St. Thomas meteorites

AUDIO

(The Morning Edition, Kitchener Waterloo, CBC, 24.3.2014)

Professor Phil McCausland von der University of Western Ontario berichtet über die Meteoritensuche in der Nähe von Aylmer und St. Thomas, Ontario, Canada am letzten Woche.

Gesucht werden Meteorite des großen Meteors vom 18. März (~22.24 Uhr Ortszeit), der von sieben All-Sky-Cams des Western's Southern Ontario Meteor Network (SOMN) aufgenommen wurde. Der Verlöschungspunkt soll sich in einer Höhe von 32 km befunden haben.



Offline karmaka

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Re: Sutter's Mill - 22.04.2012 - Bolide über USA California/Nevada
« Antwort #269 am: April 29, 2014, 13:55:38 nachm. »
Heute wurde die offizielle Sutter's Mill Fundliste um das Exemplar SM79 mit 9,3 Gramm ergänzt. Gefunden wurde es von
Luka Bogdanovich am 7. Juni 2012 an dieser Stelle:  38.8079 N , 120.9512 W

 

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