BULLETIN OF THE GEOLOGICAL SOCIETY OF AMERICA 

 Vol. 5, pp. 171-190, PL. 4 February 8, 1894 



PALEOZOIC OVERLAPS IN MONTGOMERY AND PULASKI 



COUNTIES, VIRGINIA* 



BY MARIUS R. CAMPBELL 



{Read before the Society December 28, 1893) 

 CONTENTS 



Page 



Area Studied 172 



General Description 172 



Previous Investigators and their Conclusions 172 



Present Investigations 173 



Physical Features 173 



Stratigraphy 175 



Cambrian— Graysonton Formation 175 



Cambro-Silurian— Shenandoah Limestone 175 



Silurian 176 



Sevier (Hudson River) Shale 176 



Bays (Red Medina) Sandstone 176 



Clinch (Medina-Oneida) Sandstone 176 



Rockwood (Clinton) Formation 176 



Giles (Lower Helderberg-Oriskany) Formation 176 



Devonian 176 



Walker black Shale 176 



Kimberling Shale ; . . . 177 



Carboniferous 177 



Price (Pocono) Sandstone 177 



Pulaski Shale 178 



Structure 178 



General Features 178 



Price Mountain 179 



General Description 179 



Views of other Geologists as to Origin 180 



Its Formation by Faulting discussed 181 



Its Formation by unconformable Deposition discussed 181 



Ingles and Berringer Mountain 183 



Cambrian Area at Peppers Ferry 183 



Syncline of Sevier Shale south of Radford 184 



* Printed by permission of the Director of the U. S. Geological Survey. 

 XXIIT— Bum.. Gf.oi.. Sor. Am,, Vot,. 5, 1893. (171) 



