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

Uploaded: 7 May 2020
Last Updated: 19 May 2020

407 megapixels
25,624 x 15,872 pixels
85.4 in X 52.9 in at 300dpi
40 pixels per inch

Here, two carbonatite dikes cut across Cambrian-aged Chancellor group slates. The dikes have been geochemically correlated with the Devonian Ice River Complex, and they have been deformed (boudinaged with calcite/quartz veins forming in boudin necks, as well as folded) during Canadian Rockies mountain building. Bedding is oriented 074°/10° (right-hand rule). Cleavage is oriented 104°/37° (right-hand rule). The overall dike orientation (cancelling out the undulating fold train) is 114°/40° (right-hand rule). There are also prominent subvertical examples of spaced cleavage or planar stylolites. This GigaPan is a zoomed-in version of this one: https://viewer.gigamacro.com/view/A7GNistVSA6dhX4b