Abstract Details
(2020) Microscale Hydrogen and Nitrogen Isotopic Distributions in Pristine CM Chondrite Asuka 12236
Nittler L, Alexander C & Verdier-Paoletti M
https://doi.org/10.46427/gold2020.1938
The author has not provided any additional details.
01c: Room 1, Tuesday 23rd June 00:48 - 00:51
Larry Nittler
View all 3 abstracts at Goldschmidt2020
View abstracts at 3 conferences in series
Conel Alexander View all 4 abstracts at Goldschmidt2020 View abstracts at 2 conferences in series
Maximilien Verdier-Paoletti View abstracts at 2 conferences in series
Conel Alexander View all 4 abstracts at Goldschmidt2020 View abstracts at 2 conferences in series
Maximilien Verdier-Paoletti View abstracts at 2 conferences in series
Listed below are questions that have been submitted by the community that the author will try and cover in their presentation. To submit a question, ensure you are signed in to the website. Authors or session conveners approve questions before they are displayed here.
Submitted by My Riebe on Sunday 21st June 19:13
What is our best understanding of the conditions of aqueous alteration on the CM parent body(ies)? Do you think there was fluid flow, different areas with different water/rock ratios but no communication between them, or something else (e.g., "mud convection" Bland and Travis, Science Advances, 2017)?
will need to do some reading on this ...
What is our best understanding of the conditions of aqueous alteration on the CM parent body(ies)? Do you think there was fluid flow, different areas with different water/rock ratios but no communication between them, or something else (e.g., "mud convection" Bland and Travis, Science Advances, 2017)?
will need to do some reading on this ...
Submitted by My Riebe on Sunday 21st June 19:24
Follow up on my previous question: Is it likely that there are many different CM parent bodies and that these very primitive meteorites come from a different parent body than more altered CMs?
Follow up on my previous question: Is it likely that there are many different CM parent bodies and that these very primitive meteorites come from a different parent body than more altered CMs?
Submitted by Krysten Villalon on Monday 22nd June 02:40
Do you know how much these isotopic compositions and presolar grain abundances vary between the more metal-rich/less-altered areas of Paris and the metal-poor/more-altered areas? And do you also see distinct lithologies with different levels of aqueous alteration in Asuka 12169 and/or Asuka 12236?
See slide 3 for the presolar grains (from Verdier-Paoletti LPSC '2020) - they are more abundant in the metal-rich lithology (which has similar abundance to A12236). I didn't have time in the talk to get into it, but both areas mapped for H,C and N in Paris were altered, but one more so than the other. The more altered one clearly has lower D/H (and C/H) on average. The A 12236 section does show apparent textural and compositional variations, probably indicating somewhat different degrees of alteration. Our A12169 section is pretty small but it looks really primitive throughout.
Do you know how much these isotopic compositions and presolar grain abundances vary between the more metal-rich/less-altered areas of Paris and the metal-poor/more-altered areas? And do you also see distinct lithologies with different levels of aqueous alteration in Asuka 12169 and/or Asuka 12236?
See slide 3 for the presolar grains (from Verdier-Paoletti LPSC '2020) - they are more abundant in the metal-rich lithology (which has similar abundance to A12236). I didn't have time in the talk to get into it, but both areas mapped for H,C and N in Paris were altered, but one more so than the other. The more altered one clearly has lower D/H (and C/H) on average. The A 12236 section does show apparent textural and compositional variations, probably indicating somewhat different degrees of alteration. Our A12169 section is pretty small but it looks really primitive throughout.
Submitted by Sheryl Singerling on Monday 22nd June 23:01
Are the Asuka meteorites a pairing group?
they aren't listed as such by the NIPR Meteorite Newsletter
Are the Asuka meteorites a pairing group?
they aren't listed as such by the NIPR Meteorite Newsletter
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