By: magic-gigapans
Image: Callan Bentley, Mid-Atlantic Geo-Image Collection
License: Creative Commons Non Commercial ⧉

Uploaded: 17 Apr 2020
Last Updated: 22 May 2020

230 megapixels
16,820 x 13,649 pixels
56.1 in X 45.5 in at 300dpi
6,084 pixels per inch

Beach cobble of material from dikes adjacent to the Drumadoon Sill. This is described as "North Britain Palaeogene Dyke Suite - Quartz-feldspar-porphyry. Igneous Bedrock formed approximately 23 to 66 million years ago in the Palaeogene Period. Local environment previously dominated by intrusions of silica-rich magma." (http://mapapps.bgs.ac.uk/geologyofbritain/home.html) Potential source dikes can be viewed here: https://viewer.gigamacro.com/view/LsPtONnfNwZE7yU6 https://viewer.gigamacro.com/view/AGeqekaxiE2RPtc2 The Drumadoon Sill can be viewed here: https://viewer.gigamacro.com/view/nn3z8pM9cQv7zRKt