Talk:Panhole

Panholes in granite
They are found in limestones and silicate rocks, but rare in granites??? Granite is a silicate rock, and panholes are quite common in granite rocks!!! Let's correct it, please. 95.17.61.63 (talk) 21:44, 24 June 2010 (UTC)
 * I just did that, before looking at this talk page. There is another correction to be made, but I don't have the ref in front of me. Gnammas found on granitic outcrops can be formed by biological processes, not just geological ones. cygnis insignis 16:37, 3 October 2011 (UTC)

Images
The example in the first image looks rather like a water-worn pothole of which there are many in riverbeds in wet Britain. The setting in the image looks to be a canyon which occasionally takes large volumes of water. And the water in the third image appears, curiously, to be in motion. I wonder if similar looking features which have widely varying origins are being confused in this article? Geopersona (talk) 17:15, 3 January 2023 (UTC)
 * Hi . I'm just wondering what makes you think that the third photo looks like water in motion? I took that photograph, and I can assure you that it is completely still. It is one of several on a high granite outcrop in outback South Australia, with no flowing water nearby. Laterthanyouthink (talk) 19:28, 3 January 2023 (UTC)
 * Ah, thanks Laterthanyouthink. If you look at the reflection of the grid mesh in the water it is disturbed indicating the water surface is not still, whereas you would expect it to be still - was it breezy perhaps? There's also a subtle wavy texture to the right hand side of the reflecting area. It's not an issue for the article - I was just curious, that's all. cheers Geopersona (talk) 07:19, 4 January 2023 (UTC)
 * I see what you mean,, although I had to zoom in very close to see it! It was slightly breezy, but not very windy, so not sure what caused the ripple effect. I see that I also uploaded this one - perhaps a better one for this article? Easily replaced if you agree. Laterthanyouthink (talk) 03:32, 5 January 2023 (UTC)
 * They are both nice crisp images, though with the second one, it's more difficult to see the water - and that rainwater retention, per the body text, is a key part of the feature's significance. No particular preference here. best wishes Geopersona (talk) 11:44, 5 January 2023 (UTC)
 * Okay, thanks . Will leave for now. (Inertia rules!) Laterthanyouthink (talk) 08:16, 6 January 2023 (UTC)

Mixed usage of "panhole" and "pothole"
Some of the text uses the term "pothole" when referring to the subject of the article. I understand that the terms are sometimes used interchangeably in other literature, but would it be clearer to stick to the term "panhole" throughout this article? Djournal (talk) 15:09, 25 October 2023 (UTC)


 * Excellent idea. Terminology for panhole has been standardized Paul H. (talk) 15:52, 25 October 2023 (UTC)
 * I'd suggest that the first image is of a pothole rather than a panhole - it was formerly labelled as such. Since it occurs in what appears to be a dry stream bed, it's more likely to have arisen through the action of moving water rather than as the features mentioned in the article are described. See latter two images on the page I've linked to. thanks Geopersona (talk) 19:46, 25 October 2023 (UTC)
 * You have an excellent point. Should we either remove or replaced that image? Paul H. (talk) 00:52, 26 October 2023 (UTC)
 * There is a suitable replacement at A natural panhole with water on Savandurga and more candidates at Category:Panholes Paul H. (talk) 01:02, 26 October 2023 (UTC)