First Advisor

Ansel G. Johnson

Date of Publication

1980

Document Type

Thesis

Degree Name

Master of Science (M.S.) in Geology

Department

Earth Science

Language

English

Subjects

Applied Geophysics, Geophysical Methods, Oregon

DOI

10.15760/etd.3190

Physical Description

1 online resource (118 p.)

Abstract

The geologic setting of the Portland Basin is ideal for gravity surveys because of the large density contrasts between geologic units. The Portland Basin consists of a north-northwest-trending syncline in the Columbia River basalt overlain by Pliocene to Recent alluvium. This study was undertaken to define structures in the Portland Basin which are obscured by the alluvium.

An areal gravity survey of the Portland Basin covering approximately 450 square kilometers was conducted for this study.

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).

Comments

If you are the rightful copyright holder of this dissertation or thesis and wish to have it removed from the Open Access Collection, please submit a request to pdxscholar@pdx.edu and include clear identification of the work, preferably with URL

This thesis include supplemental content available to download.

Persistent Identifier

http://archives.pdx.edu/ds/psu/18438

perttu1.pdf (2573 kB)
Plate 1. Complete Bouguer Gravity Anomaly Map of the Portland Basin

perttu2.pdf (1530 kB)
Plate 2. Residual Complete Bouguer Gravity Anomaly Map of the Portland Basin

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