Mon 15 May, 2017 07:15 pm - I'm not a geologist, and nor will I ever be a geologist. This is the last ever piece of geology work I will ever have to do.
I have done the work, actually. You can see I found the map and... (view)
Mon 15 May, 2017 04:49 pm - Hi,
Here is the interactive map that I'm working with: http://www.largeimages.bgs.ac.uk/iip/mapsportal.html?id=1003959
I have been given three grid references, and told to name the... (view)
Wed 22 Mar, 2017 09:37 pm - You've been most helpful. Thank you.
One last question: I know there is a reddish colouration, but in the third link posted, at the bottom of the rock, there is an obvious white speck... (view)
Wed 22 Mar, 2017 08:55 pm - Obviously the grain size is 1/16 th mm - 2 mm. But what would I call the grains for the images linked? Medium, coarse, medium-to-coarse? (view)
Wed 22 Mar, 2017 07:05 pm - Geology class.
What would your suggestion be on the cement binding the likely quartz/feldspar grains?
It doesn't look to have much of a matrix, does it? (view)
Wed 22 Mar, 2017 01:06 pm - I wasn't sure if that was colouring due to the presence of iron oxide, as my feeling is that the generally lighter colour is suggesting that it's predominantly quartz. And I thought... (view)
Wed 22 Mar, 2017 09:33 am - My initial feeling is that it is a sandstone. Appears to be mostly quartz, but perhaps with plagioclase feldspar as the white mineral that is present.
For sorting, I was going to suggest it is... (view)
Wed 22 Mar, 2017 01:03 am - Hi All,
I know it's difficult to say too much without access to the specimen, as that and further diagnostic testing is necessary to make an accurate description of a rock.
However, I... (view)
