Posted by: paulgarner | September 2, 2011

Some wonderful Lake District geology: Part 1

Now that I’m back at my desk following my holiday, I thought readers of my blog might like to see a few geological photos from the Lake District, the region of northwest England that we visited. Yes, I know I was meant to be enjoying some “time out” but these things have a habit of turning into a “busman’s holiday”. Just ask my poor, long-suffering wife! Anyway, the Lake District boasts such wonderfully varied geology in a relatively small area (see Figure 1 in this paper) that it’s difficult not to make the most of every visit. So here are a few highlights in visual form, with more to come tomorrow.

Ripple-drift cross-lamination in turbidites of the Loweswater Formation (Skiddaw Group, Ordovician), Scawgill Bridge Quarry:

Coarse, unbedded breccia interpreted as a mudflow (lahar) deposit in the lower part of the Borrowdale Volcanic Group (Ordovician) near the mouth of Cat Gill, Derwentwater:

Large fiamme in massive Borrowdale Volcanic Group (Ordovician) ignimbrite, Side Pike, Langdale:

Accretionary lapilli within porcellanous tuff in Borrowdale Volcanic Group (Ordovician), Side Pike, Langdale:

Coarse tuff displaying low-angle cross-bedding, possibly of pyroclastic surge origin, in Borrowdale Volcanic Group (Ordovician), Side Pike, Langdale:

Chaotic, probably volcanotectonic, breccia in Borrowdale Volcanic Group (Ordovician), Side Pike, Langdale:

Coming up: Silurian turbidites, Devonian conglomerates, the Shap Granite and glacial landforms.



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