Meeting Planning Services

8:30 AM

Zheng Y.* Heck P. R. Santos E. Kim B. Huang Y. et al.

The Effects of Parent Body Aqueous Alteration on Organic Matter in Carbonaceous Chondrites [#6347]
Here we report the results of a comparative study combining Raman spectroscopy and GC-MS to investigate the effects of parent body aqueous alteration on the organic inventory of C-chondrites.

8:45 AM

Orthous-Daunay F.-R.* Isa J. Flandinet L. Vuitton V.

Aqueous Alteration Fingerprints in the Molecular Complexity of Carbonaceous Chondrites [#6371]
The organic mixture of carbonaceous chondrites is likely to have recorded a primordial synthesis pattern. The altered parts of Tagish Lake bear a different pattern due to aqueous alteration unlike other meteorites.

9:00 AM

Dionnet Z.* Djouadi Z. Brunetto R. Aléon-Toppani A. Nakamura T. et al.

Spatial Heterogeneity of Aliphatic Compounds and Their Link with Phyllosilicates as a Result of Aqeuous Alteration of Ryugu Samples [#6014]
We present a study focusing on the spatial heterogeneity of the aliphatic compounds and its correlation with the phyllosilicate distribution within Ryugu samples.

9:15 AM

Zetterlind A. O.* Potiszil C. Sanders T. J. Hoefnagels B. van der Tak F. F. S. et al.

Insights into the Liberation of Organic Matter and the Aqueous Alteration of Carbonaceous Chondrites Exposed to Prebiotic Ponds [#6378]
Experiments with CC in simulated prebiotic ponds revealed the release of amino acids. This suggests early Earth's hydrothermal environments facilitated the accumulation of organic compounds, highlighting their potential role in life's emergence.

9:30 AM

Haller R. L.* Hodson M. E. Lee M. R.

Experimental Terrestrial Weathering of Carbonaceous Chondrites [#6325]
Chips of CM chondrites Kolang and Murchison and C3.00-ung Chwichiya 002 reacted with artificial rainwater to examine their susceptibility to terrestrial weathering. Chwichiya 002 appears to be less reactive than expected.

9:45 AM

Eckart L. M.* Busemann H. Krietsch D. Maden C. Westphal A. et al.

Noble Gases in Samples (Cometary Matter and Aerogel) Returned by Stardust [#6364]
We measured the noble gases in samples returned by NASA's Stardust mission to comet 81P/Wild 2. Using the CSSE technique, we were able to separate the aerogel gas signal from the particle's one. Further, we measured flown and flight spare aerogel.

10:00 AM

Rosello Del Valle L.* Bennett C. Donaldson Hanna K. L. Pirim C. Carpentier Y. et al.

Using Micro-Raman Spectroscopy to Determine Minerology and Peak Metamorphic Temperature of Selected Carbonaceous Chondrite Meteorites [#6006]
This study uses micro-Raman spectroscopy to determine the composition and peak metamorphic temperature of the following meteorites: Tagish Lake, Jbilet Winselwan, Murchison, Allende, Ivuna, Northwest Africa 10675, and Northwest Africa 12328.

10:15 AM

Kebukawa Y.* Tominaga T. Suzuki M. Kobayashi K. Zolensky M. E. et al.

Organic Characteristics of Ungrouped Carbonaceous Chondrites: Chwichiya 002 and Tarda, Based on Scanning Transmission X-Ray Microscopy, Raman and Infrared Spectroscopy [#6083]
We have analyzed ungrouped carbonaceous chondrites by STXM, Raman, and FTIR. Chwichya 002 (C3.00-ung) showed a low organic content, but the organics were probably very primitive, while the organics in Tarda (C2-ung) were similar to Murchison.

10:30 AM

Amano K.* Viennet J-C. Yaroslavtsev S. Beck P. Bernard S. et al.

The Iron Redox State of C2-Ungrouped Chondrites in Comparison with Returned Samples from Carbonaceous Asteroids [#6297]
We present the results of synchrotron Mossbauer spectroscopy and Fe XANES of Tagish Lake and Tarda meteorites and compare with those of CI chondrites and the samples recently brought back from the carbonaceous asteroids.