Geologic Report on a Portion of the Little Tujunga Quadrangle and a Portion of the Sunland Quadrangle

Citation

George, John (Jack) Wesley (1937) Geologic Report on a Portion of the Little Tujunga Quadrangle and a Portion of the Sunland Quadrangle. Senior thesis (Major), California Institute of Technology. doi:10.7907/PW3T-1E97. https://resolver.caltech.edu/CaltechTHESIS:12102009-092225763

Abstract

The area under investigation is in the north-west portion of Sunland Quadrangle and the south-west portion of the Little Tujunga Quadrangle, Los Angeles County, California. The maps used were the advance sheets of these two quadrangles surveyed in 1933 by the United States Geological Survey with a scale of 1:24,000 and a contour interval of twenty-five feet.

The area is reached by traveling westward along Foothill Boulevard from Pasadena through the town of Sunland and continuing along the boulevard approximately six miles past Sunland and then turning right on the road pointing to Kagel Canyon.

Specifically, the area is bounded on the south by the alluvium of Tujunga Valley, on the west by Lopez Canyon, on the east by Herrick Canyon, and on the north by the so called Sierra Madre Fault which give the fault contact between the Saugus sediments and the basement complex. The area is about three miles long (North-South) and two and one-half miles wide (East-West) giving a total area of approximately seven and one-half square miles.

The field work was done on occasional Saturdays and Sundays during the school year of 1936-1937. The purpose of the work is to gain a more thorough knowledge of geological field mapping and of the structural interpretation of field work results.

The work was done largely under the supervision of Dr. Francis Bode. His suggestions were very helpful. Mr. Richard Hopper's help was very valuable. Mr. Walter White, who covered the same area as partial fulfillment of his thesis for a Master's degree in geology offered many suggestions. For reference, the paper, "Structure of the San Gabriel Mountains North of Los Angeles, California", by Mason L. Hill found in the University of California Publications in Geological Sciences, Volume 19, 1929-1931 was used as well as U.S.G.S. Bulletin 753 by William S.W. Kew.

Thesis Files