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General Geology of the Verdugo Mountains


Judson, Jack Finlay (1934) General Geology of the Verdugo Mountains. Bachelor's thesis, California Institute of Technology. doi:10.7907/KFF4-5G61.


The Verdugo Mountains is a horst bounded on the south and west by reverse faults and on the north by normal faults. These faults are not simple fractures, but are zones including a number of parallel faults. The Verdugo block is not a simple horst, however, but is a composite one, being divided into three main blocks by normal faults which belong to a later period than the reverse faulting. Structurally, the Verdugo Mountains is a part of the San Gabriel Range, and also should include the San Rafael Hills which are only separated from these mountains by Verdugo Canyon.

The western part of these mountains is overlain by Miocene and Pliocene sediments folded into a number of small folds, which, however, are merely flexures on the south limb of an overturned syncline whose axis is across Tujunga Wash. These sediments are largely marine, although fan-glomerates make up a large part of these. The basal conglomerate has a basalt flow intercalated in it.

Item Type:Thesis (Bachelor's thesis)
Subject Keywords:Verdugo Mountains, Verdugo block, Verdugo Canyon, Miocene sediments, Pliocene sediments, Tujunga Wash
Degree Grantor:California Institute of Technology
Division:Geological and Planetary Sciences
Major Option:Geology
Thesis Availability:Public (worldwide access)
Research Advisor(s):
  • Maxson, John H.
Thesis Committee:
  • None, None
Defense Date:1 January 1934
Additional Information:Microfiche copy of the thesis entitled: "Geology of the Verdugo Mountains". Supplemental Files Information: Geologic Map of Verdugo Mountains: Supplement 1 from "General geology of the Verdugo Mountains" (Thesis). Date(s) Collected: 1934. Geographic Location Bounding Box: -118.228 Degrees East; -118.372 Degrees West; 34.267 Degrees North; 34.163 Degrees South. Aerial Map of West Verdugo Mountains: Supplement 2 from "General geology of the Verdugo Mountains" (Thesis) Date(s) Collected: 1934
Record Number:CaltechTHESIS:12152009-111344951
Persistent URL:
Related URLs:
URLURL TypeDescription 1 in CaltechDATA: Geologic Map of Verdugo Mountains 2 in CaltechDATA: Aerial Map of West Verdugo Mountains
Default Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:5445
Deposited By: Tony Diaz
Deposited On:24 Dec 2009 19:38
Last Modified:03 Oct 2019 23:44

Thesis Files

PDF (Thesis) - Final Version
See Usage Policy.

PDF (Geologic map of Verdugo mountains) - Supplemental Material
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PDF (Aerial map of W. Verdugo mountains) - Supplemental Material
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