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You are browsing the archive for 2016 June 22.

22 June 2016

Shattered chert breccia cobbles, Church Bay, Rathlin Island

My GigaPan expedition has landed at Rathlin Island, north of Northern Ireland, within view of Scotland, for a few days. The beach on Church Bay is cobble-covered and steep, and the cobbles reflect the island’s geology, with some anthropogenic components thrown in for flavor: Link GigaPan by Callan Bentley But I was struck by these two cobbles, each showing a pervasively shattered breccia of chert: To me, that is not …

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