Talk:Carbonaceous chondrite

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CI group This group, named after the Ivuna meteorite, are considered the least altered of all carbonaceous chondrites. They typically contain a high proportion of water (up to 20%), and organic matter in the form of amino acids and PAHs.

http://en.wiki.x.io/wiki/PAH This article is about the gene named PAH. For the chemical compound, see polycyclic aromatic hydrocarbon.

This is a poor redirect. It seems to imply that PAHs the gene exists in carbonaceous chondrites rather than the polycyclic aromatic hydrocarbon. If the gene does exist - wow - please clarify. Thanks ____________ I'm not sure if this is where I should add a comment. I'm not an expert on wikipedia at all but I saw this article https://www.dailymail.co.uk/sciencetech/article-9578359/Extremely-rare-Winchcombe-meteorite-goes-display-Londons-Natural-History-Museum.html?offset=1&max=100&jumpTo=comment-694642689#comment-694642689 and thought that some of the content especially on famous meteorites should list this one — Preceding unsigned comment added by 82.23.16.93 (talk) 17:15, 14 May 2021 (UTC)

Densities?

What are the range of densities exhibited by these meteorites? The link to Olivene tells me about 3.5, but the other components would change that (reduce it I assume). Thanks. -84user (talk) 15:18, 19 June 2008 (UTC) I found this table of densities for ordinary chondrites and it shows:

Meteorite type   Grain density   Bulk density  Average porosity
H                3.84            3.4           11.5%
L                3.75            3.34          10.8%
LL               3.56            3.19          10.4%

So, would it be safe to say the bulk desnity of Carbonaceous chondrites should fall in the range 3 to 4? -84user (talk) 15:28, 19 June 2008 (UTC)

Organic matter

Can someone give more of an explanation how Organic matter such as kerogen is found on extraterrestrial materials? What is this synthetic pathway? thank you --OxAO (talk) 17:48, 3 June 2009 (UTC)

If you're still here ... the short answer is that "no one really knows". You also have to be a little careful with that phrase "organic matter". There is at the moment no proof, not even a suggestion yet, that these somehow came from living things. That is NOT the conclusion. — Preceding unsigned comment added by 60.229.91.197 (talk) 07:32, 13 March 2018 (UTC)

External links modified

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A personal reflection.

Look, this has nothign to do with an "Encyclopedia", so putting it here rather than on the main page. These "rocks" have a fabulous .... searches for the right word ... "Organic" almost ... "crude oil" smell. So suggestive. So full of possibilities. Worthwhile going to a museum to experience it for yourselves, just for that. A very personal observation. — Preceding unsigned comment added by 60.229.91.197 (talk) 07:34, 13 March 2018 (UTC)

To add to article

To add to this article: information from this article, published on August 13, 2020.

173.88.246.138 (talk) 03:32, 19 August 2020 (UTC)

Wiki Education assignment: Organic Geochemistry 2023

This article was the subject of a Wiki Education Foundation-supported course assignment, between 3 April 2023 and 11 June 2023. Further details are available on the course page. Student editor(s): SpaceStones (article contribs).

— Assignment last updated by SpaceStones (talk) 19:19, 1 May 2023 (UTC)