Collected Tweets from April 10th. Walking round from Blackwaterfoot looking at various Paleogene intrusions (Dykes and a Sill), walking across the Triassic/Permian boundary to King’s Cave. (Again; RJ is Me, HS is Hazel)
9:34 AM Apr 10th : Pigtails are the choice of hair style for field trips! At blackwaterfoot goin to look at some ig. Rocks. – HS
9:35 AM Apr 10th : King’s Cave today as well I think. – RJ
12:24 PM Apr 10th : Stopping for lunch next to doon sill. Lots of lovely Igneous rocks. Now off to the caves. – HS
12:28 PM Apr 10th : ‘The Doon’ – a great big sill, seen from the beach and the view from halfway up. – RJ
The Doon Sill
Slightly closer View
Field Sketch
Sketch Diagram of the Base of the Sill
12:30 PM Apr 10th : The real reason we wear hard hats. – RJ
The real reason Geologists wear hard hats.
12:31 PM Apr 10th : Small intrusions with brilliant chilled margins. – RJ
Lovely Chilled Margins
2:00 PM Apr 10th : Just scrambled up a muddy waterfall, through a gorse thicket to touch John’s ‘thing’, turned out to be Triassic reptile footprints. – RJ
This innuendo probably requires an explanation. John wanted to make the Isochirotherium footprints a surprise for the groups so was referring to it as his ‘thing’. We of course took that statement and ran with it. (For more info about these check out Neil Clark’s paper in the latest volume of the Scottish Journal of Geology – Vol. 45 pt. 1)
Reptile Footprints
2:29 PM Apr 10th : Weather has turned really lovely, skimming rocks while we wait for everyone to look at the footprints. – RJ
The footprints were halfway up a waterfall and fairly inaccessible – so we went up 5 people at a time.
2:58 PM Apr 10th : A wee snake on the path. – RJ
A Snake in the Grass
3:14 PM Apr 10th : In king’s cave – a raised sandstone sea cave. – RJ
King's Cave
8:18 PM Apr 10th : Listening to John Faithful lecturing on paleogene igneous activity. – RJ
Tags: Arran, Arran09, Geology, Paleogene, Permian, Quaternary, Triassic