BULLETIN OF THE GEOLOGICAL SOGiETY OF AMERICA 

 Vol. 23, pp. 69-76 March i4, 1912 



PROCEEDINGS OF THE TWELFTH ANNUAL MEETING OF 

 THE CORDILLEEAN SECTION OF THE GEOLOGICAL SO- 

 CIETY OF AMEEICA, HELD AT BERKELEY, CALIFORNIA, 

 MARCH 31 AND APRIL 1, 1911 ^ 



George D. Louderback^ Secretary 



CONTENTS 



I'age 



Session of Friday, March 31 69 



Election of officers 70 



Representation on tlie Council 70 



Neocolemanite, a variety of colemanite, and howlite from Lang, Los 



Angeles County, California [abstract] ; by A. S. Eakle 70 



Mineral associations at Tonopah, Nevada [abstract] ; by A. S. Eakle. . 70 



Note on mountain-producing forces [abstract] ; by H. F. Reid 71 



Session of Saturday, April 1 71 



Tertiary deposits of Oahu [abstract] ; by C. H. Hitchcock 71 



Fanglomerate, a detrital rock at Battle Mountain, Nevada [abstract] ; 



by A. C. Lawson 72 



Orthoclase as a vein mineral [abstract] ; by A. F. Rogers 72 



Some general features of the Miocene of the southern Coast Range 



region of California [abstract] ; by G. D. Louderback 72 



Origin of the sandstone at the State prison near Carson City, Nevada 



[abstract] ; by W. S. T. Smith 73 



Notes on the Cenozoic history of central Wyoming [abstract] ; by C. L. 



Baker 73 



Nomenclature of faults [abstract] ; by H. F. Reid 74 



Geology of the Nevada hills [abstract] ; by A. C. Lawson 74 



Section of the Shinarump [abstract] ; by A. C. Lawson 74 



Some Tertiary and Quaternary geology of western Montana, northern 



Idaho, and eastern Washington [abstract]; by O. H. Hershey 75 



Register of the Berkeley meeting 75 



Session of Friday, March 31 



Tlie twelfth annual meeting of the Corclilleran Section of the Geo- 

 logical Society of America was called to order in room 34, South Hall, 

 University of California, Berkeley, at 2.15 p. m., March 31, 1911, by the 

 chairman of the Section, Prof. A. C. Lawson. 



The minutes of the previous annual meeting were read and approved. 



1 Manuscript received by tbe Secretary of the Geological Society of America February 

 19, 1912, 



(69) 



