THE METAMORPHIC SERIES OF SHASTA COUNTY, 

 CALIFORNIA. 



CONTENTS. 



Introduction. 

 Structure. 



Folds. Faults. 

 Stratigraphy. 



Columnar Section of the Metamorphic Series. 



Sacramento Formation. Kennett Limestones and Shales. 



McCloud Formation. Occurrence and Character. 



Baird Shales. Distribution and Fossils. Affinities of the Fauna. 



McCloud Limestone. Occurrence and Character. Fauna of the McCloud 



Limestone. 

 Pitt Formation. General Character of the Rocks. 

 The Carboniferous Argillites. 

 The Triassic Shales and Conglomerates. 

 Cedar Formation. Distribution and Character. 

 Swearinger Slates. 

 Hosselkus Limestone. 



Atractites Beds. Spiriferina Bed. 

 Relations of the Fauna of the Hosselkus Limestone. 

 Geographic Provinces in Triassic Time. 

 Bend Formation. 

 Jura — Trias Unconformity. 



INTRODUCTION. 



The stratigraphy of the metamorphic rocks of the Klamath 

 mountains is destined to throw much light upon geologic prob- 

 lems in the West, but as yet very few geologists have made 

 explorations in this region. The principal work has been done 

 by John B. Trask, of the Geological Survey of California, under J. 

 D. Whitney, by J. S. Diller and H. W. Fairbanks, 1 and their obser- 

 vations are recorded in the various papers cited below. This 



1 Acknowledgments are due Mr. H. W. Fairbanks, who gave information about 

 nearly all the localities mentioned in this paper, and also supplemented by the loan of 

 his collections of fossils the collections made by the writer. 



588 



