Talk:Maar

Merge
I'd like to suggest that the page Maar volcanic crater is redundant and should be merged with this one. --Geologyguy 02:39, 3 August 2006 (UTC)


 * Agreed. I wasn't aware of that one - pretty stubby, merge away. Vsmith 03:10, 3 August 2006 (UTC)

The reference to "*Morale Claim Maar, Arizona" produces a Page Not Found error; in fact the entire volcano.und.edu site re-directs now to a different location without (so far as I could tell) corresponding subdirectories; so I deleted it. I would add some maar images from Diamond Craters in southeast Oregon, but I appear to lack the editing rights/status to upload images. Here's one FYI of Malheur Maar, about halfway down the page: Eastern Oregon & Washington Geology Ronks (talk) 22:34, 24 December 2008 (UTC)

Proposed category renaming
Avenue (talk) 17:00, 2 March 2009 (UTC) In English usage, maar is not a proper noun and should not generally be capitalized, unless part of a formal place name.

Maars and calderas
So what exactly is the difference betwean a and a caldera? --The High Fin Sperm Whale (talk) 21:33, 29 October 2009 (UTC)

Basically - caldera has a lot of magma which empties either explosively or effusively - and then the lack of magma causes the ground to collapse - unable to support itself under gravity (it's usually a massive eruption in some terms). Maar has some magma in a pocket interact with water - and a usually tiny steam driven explosion rips some rock out of the ground leaving a crater. EdwardLane (talk) 16:00, 3 October 2013 (UTC)

Merge ?
Pseudocrater in what manner are they distinct from a Maar ? EdwardLane (talk) 15:54, 3 October 2013 (UTC)


 * Pseudocraters aren't formed by magma approaching the surface, but by lava flows hitting water and causing an explosion. So maars are formed by volcanic vents, and pseudocraters are not. Some way beneath a pseudocrater, the rocks would be similar to the surrounding rocks, whereas beneath a maar there would be a diatreme. Maars can be surrounded by non-igneous rock, while a pseudocrater is part of a wider lava flow. They're distinct topics, and deserve separate articles IMO. --Avenue (talk) 09:17, 5 October 2013 (UTC)


 * Fair enough, good explanation of the distinction. EdwardLane (talk) 00:36, 6 October 2013 (UTC)

External links modified
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Etymology section
Instead of hiding the information in the notes, it could be converted into an etymology section in the article body. Currently the lead is not a summary of the main content as it should be. &middot; &middot; &middot; Peter Southwood (talk): 04:41, 10 July 2022 (UTC)

Pinacate has the best maars volcanos and is on the Arizona-Sonora border, accessible in Sonora only.
Pinacate was omitted in your discussion of maars volcanoes. 24.31.26.84 (talk) 02:46, 24 January 2024 (UTC)