
            
            By: magic-gigapans
            
              Image: Robin Rohrback, Mid-Atlantic Geo-Image Collection
                
            
            
              License:
                 Creative Commons Non Commercial ⧉
              
            
          
            Uploaded: 7 May 2020
            Last Updated: 18 May 2020
          
              650 megapixels
            30,336 x 21,412 pixels
            101.1 in X 71.4 in at 300dpi
            
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Cambrian-aged Antietam Formation (meta-quartz arenite of the Chilhowee Group), possibly brecciated during the late Paleozoic Alleghanian Orogeny, with angular clasts cemented by iron and manganese oxides. To explore outcrops of this breccia, click these links: https://viewer.gigamacro.com/view/f1ZHoIY8lx2xikdZ https://viewer.gigamacro.com/view/49UxkC58uf6se478