At last a bit of geology to brighten my day!
More info here
geomaps.wr.usgs.gov/parks/yos/I_1639.html
I do not know what, in the rock types colour chart the term "dikes of the sea means."
A dyke is a vertical (ish) intrusion of one igneous rock into any other rock structure. However "dikes of the sea" seems a bit vague in usual UK geological terminology as it does not accurately describe the type as in chemical composition, of the particular igneous rock that has been intruded.
The accurate chemical composition could easily be obtained from a sample and that could give more information about where the lava that dyke was made of was formed within the earths crust.
Which is totally fascinating to geology enthusiasts if no one else.
The UK has some brilliant geology as well.
www.northwest-highlands-geopark.org.uk/
Am I the only geology enthusiast on Gransnet?
Fashion for short, overweight woman
Shall we reboot our cartoons thread again? 😁
What were the first ever records that you bought and when?
To think that London, or anywhere else for that matter, does not belong to any one demographic