BULLETIN OF THE GEOLOGICAL SOCIETY OF AMERICA 



VOL. 20, PP. 223-264, PLS. 6-9 JULY 15, 1909 



CONTRIBUTION TO THE GEOLOGY OF THE SILVEE PEAK 

 QUADRANGLE, NEVADA 1 



BY H. W. TURNER 



(Presented before the Cordilleran Section of the Society December 81, 



1908) 



CONTENTS 



Page 



Introduction 224 



Geographic features 226 



Extent and topography of the quadrangle 22G 



Drainage 227 



Water supply 227 



Precipitation 228 



Scenery 22S 



Desert varnish 229 



Pre-Cambrian complex 230 



Location and composition of the complex 230 



The gneisses 230 



The schists 231 



The white granite 232 



Granitic quartz-veins 235 



Diorite dikes 237 



Paleozoic sedimentary series 238 



Algonkian rocks 233 



The Paleozoic era 238 



Lower Cambrian 239 



Upper Cambrian 242 



The Ordovician sediments 243 



Tertiary sedimentary series 243 



Esmeralda formation 243 



General character 243 



Areal distribution of the beds 244 



Basal conglomerate of the Esmeralda formation 245 



Tertiary detrital-slope breccias 245 



Conglomerate beds 246 



Thickness of the beds 246 



Neocene river gravels 246 



Published by permission of the Director of the U. S. Geological Survey. 

 Manuscript received by the Secretary of the Society January 13, 1909. 



XX — Bull. Geol. Soc. Am., Vol. 20, 1908 (223) 



