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Geology of a Northern Portion of the Sunland Quadrangle, Los Angeles County


Legge, John Allan (1937) Geology of a Northern Portion of the Sunland Quadrangle, Los Angeles County. Bachelor's thesis, California Institute of Technology. doi:10.7907/MHJ4-HD20.


The region between Little Tujunga Canyon and Akens Canyon is a region of Tertiary sedimentary and intrusive volcanic rocks. The sedimentary section is dominant and is represented by about 1500 feet of Modelo (Upper Miocene), 1600 feet of marine Pico (Lower Pliocene) resting upon the Modelo with slight unconformity, 2200 feet of continental Saugus (Upper Pliocene), and 100 to 200 feet of terrace gravels (Pleistocene).

Structurally the region consists of a large block tilted northward and bounded on the north by the Sierra Madre Fault and on the south by the hypothetical Tujunga Fault. Faulting is the dominant feature of the structure, the only important fold being the Merrick syncline which roughly parallels the Sierra Madre Fault.

Item Type:Thesis (Bachelor's thesis)
Subject Keywords:Geology
Degree Grantor:California Institute of Technology
Division:Geological and Planetary Sciences
Major Option:Geology
Thesis Availability:Public (worldwide access)
Research Advisor(s):
  • Unknown, Unknown
Thesis Committee:
  • None, None
Defense Date:1 January 1937
Record Number:CaltechTHESIS:12162009-114251476
Persistent URL:
Default Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:5453
Deposited By: Tony Diaz
Deposited On:11 Jan 2010 19:03
Last Modified:03 Oct 2019 23:44

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