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16 October 2014

mountainman


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Calgary and Treshnish

The geology classes have started again and as part of these we have regular field trips. Geology is very much a "hands on " science and there is nothing like getting out and about looking at stuff. Saturdays trip was a lightweight one to begin with - simply looking at typical North Mull basalt scenery near Calgary and Treshnish. Has to be said, there isnt a huge variety of rocks to see compared to SW Mull, but what there is, is good. And easy to see.

For some odd reason, I didnt actually take any pics at Calgary - actually the weather was rather grey - mind you it WAS dry, unlike the day before. Anyway, heres a couple of pics taken on another occasion (earlier this year):



And here is the famous dyke near the old pier which has been used as part of the building there!



After looking at the rocks there we headed over to Treshnish. I have always like this part of Mull - the sea views are stunning, esp out to the Treshnish Isles. There is a very distinct raised beach here - it is like a level platform all the way round the coast:



This rock formation is definitely Sphynx like:



Great views out to the Treshnish Isles:



Nothing to beat a good old Sea Stack:



And the red boles round here are very obvious - like red lines painted on the rocks in places -real textbook stuff:




So that was that - other trips are planned to Ulva, Carsaig, Iona, Ardtun and who knows where else.

See you soon!

JW (MM)


Posted on mountainman at 09:45

Comments

What causes the red lines as indicated in your pictures?

steven milloy from kilmarnock


Wish I could join your class, MM! Looking at pictures of rocks is no substitute for the real thing, and your expert guidance would open up a whole world.

Jill from EK


Those of us that know nowt about it would think it a sort of tidemark of pollution.

Flying Cat from Simply Red


Steven - those red lines are quite common - caused by the weathering of a lava flow - red colour is due to the iron in the rock. They are called red boles. A distinctive feature of the Tertiary lavas that you find in places like Mull, Skye, Antrim and elsewhere.

MM from Tobermory


Lovely photographs!

Donna from Finally 91热爆 in Shetland.


Is 'raised beach' the official term? I'm asking because I thought they were rather the result of dropped sea :-)

Beth from EA




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