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

Uploaded: 9 Apr 2020
Last Updated: 3 Jun 2020

556 megapixels
30,764 x 18,064 pixels
102.5 in X 60.2 in at 300dpi
3,977 pixels per inch

Biotite-muscovite-garnet gneiss from the Goochland Terrane in Virginia's Piedmont Province. Estimates of its age vary, but current thinking holds that its protolith is Meso- to Neoproterozoic-aged, and metamorphosed in the Devonian. To explore a thin section of Maidens Gneiss in plane polarized light, click here: https://viewer.gigamacro.com/view/2SonT3aLYcXqk5xI To explore a thin section of Maidens Gneiss in cross polarized light, click here: https://viewer.gigamacro.com/view/FRF0VLpoyQOo5Nls