The geology of a portion of Humphrey's quadrangle
Two sedimentary formations are present in this area; the Modelo formation and the Mint Canyon formation. The latter sediments make up most of the rocks in this region while the former is confined to the southwestern one-fourth of the area. An angular unconformity separates the marine Modelo (Upper M...
Internet
https://thesis.library.caltech.edu/5467/1/Scott_dh_1939.pdfScott, David Holcomb (1939) The geology of a portion of Humphrey's quadrangle. Bachelor's thesis, California Institute of Technology. doi:10.7907/WW5D-7S89. https://resolver.caltech.edu/CaltechTHESIS:12212009-135514171 <https://resolver.caltech.edu/CaltechTHESIS:12212009-135514171>