Naked Science Forum

Non Life Sciences => Geology, Palaeontology & Archaeology => Topic started by: neilep on 28/05/2022 14:04:43

Title: Can Anyone Tell Me About This Rock ?
Post by: neilep on 28/05/2022 14:04:43

Can anyone give me some context about this rock/stone in my garden? How did the other stones become attached ? what's the plant ? What of the rock itself ?




(https://lh3.googleusercontent.com/54EwtnkVeWyN-jUsyQFG4xzvy7ej5T4PtyMF2mDrrxTzTncNAAPPF0VX9UMaz7BNg57A13QSf8vaCvngxMw0FWhEm1LfKEKotzWU0-Ctq6UeSMLNEvhgUfv7256q8P4OosM1juRvT4o=w2400)

Title: Re: Can Anyone Tell Me About This Rock ?
Post by: evan_au on 29/05/2022 08:38:27

It looks to me like someone tried to attach the large stones on top of small stones, using cement.

But the small stones were not well anchored, so a bump to the big stone produced this arrangement.

Title: Re: Can Anyone Tell Me About This Rock ?
Post by: Eternal Student on 09/06/2022 01:20:21

Hi.

   Basically it looks like the geologists that frequented this site have gone.  You haven't had a lot of replies, so you might as well have the obvious stated by someone who admits to knowing very little about it.

   I reckon it's a lichen (which isn't officially a plant) with some moss (which is a plant) growing in with it.  It doesn't look like that's thriving any longer.   Anyway, it seems to be that lichen which has bound the small rocks to the big rock.  Was the big stone on top of the small stones for a while and the lichen grew?

Best Wishes.

Title: Re: Can Anyone Tell Me About This Rock ?
Post by: neilep on 10/06/2022 12:26:25

Quote from: evan_au on 29/05/2022 08:38:27

It looks to me like someone tried to attach the large stones on top of small stones, using cement.

But the small stones were not well anchored, so a bump to the big stone produced this arrangement.

Thank you Evan, that could well eb the case. perhaps the previous owners of my home were landscape gardeners!

Title: Re: Can Anyone Tell Me About This Rock ?
Post by: neilep on 10/06/2022 12:29:05

Quote from: Eternal Student on 09/06/2022 01:20:21

Hi.

   Basically it looks like the geologists that frequented this site have gone.  You haven't had a lot of replies, so you might as well have the obvious stated by someone who admits to knowing very little about it.

   I reckon it's a lichen (which isn't officially a plant) with some moss (which is a plant) growing in with it.  It doesn't look like that's thriving any longer.   Anyway, it seems to be that lichen which has bound the small rocks to the big rock.  Was the big stone on top of the small stones for a while and the lichen grew?

Best Wishes.

Thank you Eternal,  As far as I'm aware this rock has sat on top of my air-raid shelter at the back of the garden for the last 30 years at least. I just thought I'd take a closer look. I appreciate your comments.