PP 484 plate 1 - USGS780 01 rg 0b Shep PROFESSIONAL PAPER 484 PLATE 1 Potomac rdstown s Har ers...

1

Transcript of PP 484 plate 1 - USGS780 01 rg 0b Shep PROFESSIONAL PAPER 484 PLATE 1 Potomac rdstown s Har ers...

Page 1: PP 484 plate 1 - USGS780 01 rg 0b Shep PROFESSIONAL PAPER 484 PLATE 1 Potomac rdstown s Har ers VALLEY Doh SOS Oce 0b Oce 0b Cce Carbonate rocks of Middle. and Late Cambrian age Thin-bedded