Collected Tweets from April 6th. Walk up Glen Sannox, followed by Sedimentary Logging of Old Red Sandstone in Sannox Bay. (Again; RJ is Me, HS is Hazel)
9:27 AM Apr 6th : Day 2 on Brodick beach. Conglomerate with quartz and psammite clasts. Dull weather but nice. – HS
10:02 AM Apr 6th : Counting clasts in conglomerate. Some of them are actually just algae. Heading up to Sannox again in the Arran ‘09 partybus. – RJ
Lots of weathering and organic material can make it quite difficult to identify rocks. But that’s what Hammers are for.
10:55 AM Apr 6th : First to fall in a burn: Emma. – RJ
12:24 PM Apr 6th : Had a nosey round an old barite mine, now off for sedimentary logging. – RJ
(By which I mean me and Hazel just looked in, no health and safety rules were ignored – we promise). This region was the location of a great deal of mining of large Barite veins in Old Red Sandstone rocks.
In the Afternoon we headed back down to the Beach in Sannox Bay, dividing into groups which logged separate stretches of the coast.
2:35 PM Apr 6th : It’s raining but we just found an awesome fault that hasn’t mangled the stuff around it. :) – HS
A very clearly defined fault through the conglomerate we were logging.
Small, clearly defined fault.
2:36 PM Apr 6th : Sedimentary logging [See Photograph] – RJ
Groups logging further down the shore
3:07 PM Apr 6th : Fiona taking a stage dive off an exposed Flow Channel – RJ
Here’s a preserved channel where a fast flowing flash flood cut through the underlying sandstone, depositing conglomerate on top.
Fiona posing for Photographs
Sketch Diagram of the flow channel, demonstrating what’s going on slightly more clearly.
Diagrammatic Representation of Flow Channel
3:47 PM Apr 6th : Vern: if in doubt lick it. – RJ
I’m sure there was a reason for Vernon licking a deformation band, but I can’t for the life of me remember what it was…
4:11 PM Apr 6th : Looking at deformation bands in Permian sandstones now. – RJ
Vernon licking a deformation band
8:22 PM Apr 6th : Hard at work graphically logging our beach. We’re working well into the evening tonight. – RJ
9:04 PM Apr 6th : Finished sedimentary log. Next up we do a mini-presentation on it. – RJ
The finished log.
10:21 PM Apr 6th : Long night but has been fun! Learned how to do sedimentary log graphs. Still working away – HS