Advisor

Angel G. Johnson

Date of Award

6-7-1977

Document Type

Thesis

Degree Name

Master of Science (M.S.) in Earth Science

Department

Earth Science

Physical Description

1 online resource; digitized manuscript

Subjects

Gravity -- Oregon -- Portland Region, Faults (Geology) -- Oregon -- Portland region, Structural Faults (Geology), Structural Gravity -- Oregon -- Portland Region

DOI

10.15760/etd.2612

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.

Description

A thesis submitted in partial fullfillment of the requirements for the University Scholars Program Degree - Bachelor of Science in Earth Science.

Persistent Identifier

http://archives.pdx.edu/ds/psu/16402

Included in

Geology Commons

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