The Geology of Virginia's Blue Ridge
 
    

L Y N C H B U R G   M E T A S E D I M E N T S

Lynchburg Group structure

Moderately dipping beds of metagraywacke (a dirty sandstone) from the Neoproterozoic Lynchburg Group, exposed along the James River, Amherst County

 
    

Lynchburg Group thin-section

Photomicrograph of mica-rich schist from the Lynchburg Group, eastern Blue Ridge province. Garnet porphyroblasts (g) formed during metamorphism. Field of view 5 mm x 3 mm, plane polarized light.

 
    

APPALACHIAN PLATEAU | VALLEY & RIDGE | BLUE RIDGE | PIEDMONT | COASTAL PLAIN
 

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