Sponsor
Portland State University. Department of Earth Sciences
First Advisor
Angel G. Johnson
Date of Publication
6-7-1977
Document Type
Thesis
Degree Name
Master of Science (M.S.) in Earth Science
Department
Earth Science
Language
English
Subjects
Gravity -- Oregon -- Portland Region, Faults (Geology) -- Oregon -- Portland region, Structural Faults (Geology), Structural Gravity -- Oregon -- Portland Region
DOI
10.15760/etd.2612
Physical Description
1 online resource; digitized manuscript
Abstract
The state gravity maps of Oregon and Washington show a gravity high centered south of Portland, Oregon and a gravity low in the Tualatin Valley to the west disrupting the regional gravity gradient which is controlled by crustal thickening. Detailed gravity surveys done in the Portland area are consistent with the state gravity maps but show considerably more detail. Quantitative interpretation of this data has provided new information on the subsurface structure in this area; recent work has yielded corroborative evidence for a fault zone bounding the east side of the Portland Hills, and has indicated the presence of faults under the Portland Basin to the east which were previously unknown.
Rights
In Copyright. URI: http://rightsstatements.org/vocab/InC/1.0/ This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).
Persistent Identifier
http://archives.pdx.edu/ds/psu/16402
Recommended Citation
Jones, Terry Dean, "Analysis of a Gravity Traverse South of Portland, Oregon" (1977). Dissertations and Theses. Paper 2616.
https://doi.org/10.15760/etd.2612
Comments
A thesis submitted in partial fullfillment of the requirements for the University Scholars Program Degree - Bachelor of Science in Earth Science.