Citation
Clements, Thomas (1932) The Geology of the Southeastern Portion of the Tejon Quadrangle, California. Dissertation (Ph.D.), California Institute of Technology. doi:10.7907/XERN-CX70. https://resolver.caltech.edu/CaltechTHESIS:02222018-153453201
Abstract
Rocks in the southeasterly portion of the Tejon Quadrangle include pre-Cambrian (?), Paleozoic (?), Jurassic granitic rocks, and a thick series of Cenozoic sediments. All epochs of the two periods of the Cenozoic are represented.
Lower Eocene (Martinez) marine beds are overlain unconformably by middle Eocene (Domengine) rocks, also marine. Oligocene land-laid beds occur in three isolated patches. A full series of Miocene rocks is present, from Vaqueros through Temblor to Modelo. These are all marine and in addition there is the Mint Canyon formation as the landward equivalent of a portion of the Modelo. An unconformity occurs at the base of the Temblor. Pliocene is represented in the southerly part of the area by marine Pico beds and in the north by the Ridge Route formation, largely lacustrine. These are both unconformable with the underlying Miocene rocks and the former are overlain, also unconformably, by land-laid Pleistocene (Saugus). Upper Pleistocene terraces border some of the streams, while Recent alluvium extends well up the larger stream channels.
Deformation has been brought about by static load, intrusion and dynamic compressive forces. The last named have broken the area into three blocks separated by major faults and faulted within themselves. A large syncline has developed in the central block and an upward occurs athwart the trend of other structures. The westerly block is complicated by a large overturn.
| Item Type: | Thesis (Dissertation (Ph.D.)) | |||||||||
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| Subject Keywords: | Geology | |||||||||
| Degree Grantor: | California Institute of Technology | |||||||||
| Division: | Geological and Planetary Sciences | |||||||||
| Major Option: | Geology | |||||||||
| Thesis Availability: | Public (worldwide access) | |||||||||
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| Defense Date: | 1932 | |||||||||
| Additional Information: | Supplemental Files Information: Geologic map of a portion of the Tejon Quadrangle, Los Angeles County, California: Supplement 1 from "The Geology of the Southeastern Portion of the Tejon Quadrangle, California" (Thesis). Date(s) Collected: 1929-05. Geologic map and sections of a portion of the Tejon Quadrangle, California: Supplement 2 from "The Geology of the Southeastern Portion of the Tejon Quadrangle, California" (Thesis). Date(s) Collected: 1932-05-01. | |||||||||
| Record Number: | CaltechTHESIS:02222018-153453201 | |||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechTHESIS:02222018-153453201 | |||||||||
| DOI: | 10.7907/XERN-CX70 | |||||||||
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| Default Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | |||||||||
| ID Code: | 10730 | |||||||||
| Collection: | CaltechTHESIS | |||||||||
| Deposited By: | Tony Diaz | |||||||||
| Deposited On: | 02 Mar 2018 23:13 | |||||||||
| Last Modified: | 16 Aug 2023 23:05 |
Thesis Files
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PDF (Thesis)
- Final Version
See Usage Policy. 83MB | |
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PDF (Geologic map of a portion of the Tejon Quadrangle, Los Angeles County, California)
- Supplemental Material
See Usage Policy. 43MB | |
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PDF (Geologic map and sections of a portion of the Tejon Quadrangle, California)
- Supplemental Material
See Usage Policy. 169MB |
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