Talk:Tuff
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Light microsope image
[edit]Is this not a /polarising/ light microsope image under un-crossed polars? Clarification would be awesome. 129.96.197.96 (talk) 00:18, 16 September 2011 (UTC)
File:Argishti monument.JPG Nominated for Deletion
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How do you make this tuff?
[edit]I was reading the article and I noticed that there is no clear explanation for how tuff is made. I assumed that it comes fully formed from the volcano, but I get the idea that it is volcanic ash that coalesces through the eons in the slopes of the volcanoes. Could someone make a section in the article explaining how tuff comes into being? Even if there is more than one way to make the tuff it would be a nice introduction to the subject for someone who does not know much about vulcanology.
Thanks
Melquiades Babilonia (talk) 04:32, 19 June 2015 (UTC)
External links modified (January 2018)
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Ambiguity regarding definition of "ash"
[edit]The article on volcanic tuff states: "Chunks smaller than 2 mm in diameter (sand-sized or smaller) are called volcanic ash." Then later "The ashes vary in size from large blocks 20 ft or more in diameter to the minutest impalpable dust." These two statements appear to contradict each other. Please clarify. — Preceding unsigned comment added by Lsummersb (talk • contribs) 22:03, 22 June 2019 (UTC)
- I reworded the second passage to make it less ambiguous. The wording originated with the 1911 Encyclopedia Brittanica.--Quisqualis (talk) 01:14, 23 June 2019 (UTC)
Rerating as "C" class
[edit]I've raised the rating from Start to C based on several days of hammering on this article to make it more complete and properly cited. There's still a lot of EB1911 language here that I haven't quite got the heart to tear out, and much of it I've been able to support with more modern sources. The andesite tuff section is still weak; andesite tuffs don't seem to be "exceedingly common" in the literature. And while I've found some examples of crystal tuff, it'd be nice to have images, and I haven't found any good examples of lithic tuff that are properly sourced (we actually have some lithic tuff beds in my neighborhood, but WP:OR). --Kent G. Budge (talk) 19:47, 1 October 2020 (UTC)
- C-Class vital articles
- Wikipedia level-4 vital articles
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