Citation
Findlay, Willard Alexander (1940) Sources of Miocene Sediments in Southwestern San Joaquin Valley. Dissertation (Ph.D.), California Institute of Technology. doi:10.7907/SB5Z-K361. https://resolver.caltech.edu/CaltechETD:etd-02212006-091933
Abstract
This investigation constitutes an attempt to determine by studies of heavy minerals, using a statistical approach, the sources of Miocene sands occurring along the southwestern border of San Joaquin Valley, and from a knowledge of these sources to deduce inferences regarding distribution of the sands and Miocene paleogeographic conditions. The method of attack chosen was to compare heavy mineral assemblages of the Miocene sands in question with those (1) of extant possible source areas and (2) of other post-Franciscan sediments the sources of which can be more readily inferred. The method used for sampling possible source areas was to sample fresh recent sands from streams draining these areas. Miocene samples were discreet "spot" samples. Considerable attention was given to development of laboratory and microscopic technique. The two items in this regard which are considered to represent most progress in technique are (1) use of ruled slides for grain counts, and (2) a method for use in centrifuge separations of heavy minerals. Effective methods of assembling and representing mineralogical results were devised.
| Item Type: | Thesis (Dissertation (Ph.D.)) | |||||||||
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| Subject Keywords: | (Geology) ; San Joaquin Valley, Miocene sediments, flood minerals | |||||||||
| Degree Grantor: | California Institute of Technology | |||||||||
| Division: | Geological and Planetary Sciences | |||||||||
| Major Option: | Geology | |||||||||
| Thesis Availability: | Public (worldwide access) | |||||||||
| Research Advisor(s): |
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| Defense Date: | 1 January 1940 | |||||||||
| Additional Information: | Supplemental Files Information: Flood minerals chart: Supplement 1 from "Sources of Miocene sediments in southwestern San Joaquin Valley" (Thesis). Generalized sketch of Miocene stratigraphic section along southwestern margin of San Joaquin Valley: Supplement 2 from "Sources of Miocene sediments in southwestern San Joaquin Valley" (Thesis). | |||||||||
| Record Number: | CaltechETD:etd-02212006-091933 | |||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechETD:etd-02212006-091933 | |||||||||
| DOI: | 10.7907/SB5Z-K361 | |||||||||
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| Default Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | |||||||||
| ID Code: | 692 | |||||||||
| Collection: | CaltechTHESIS | |||||||||
| Deposited By: | Imported from ETD-db | |||||||||
| Deposited On: | 21 Feb 2006 | |||||||||
| Last Modified: | 16 Aug 2023 23:38 |
Thesis Files
![[img]](https://thesis.library.caltech.edu/style/images/fileicons/application_pdf.png)
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PDF (Findlay_wa_1940.pdf)
- Final Version
See Usage Policy. 20MB | |
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PDF (Findlay_wa_1940_plate_II.pdf)
- Supplemental Material
See Usage Policy. 3MB | |
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PDF (Findlay_wa_1940_plate_III.pdf)
- Supplemental Material
See Usage Policy. 1MB |
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