First Advisor

R.O. Van Atta

Term of Graduation

Spring 1973

Date of Publication

5-24-1973

Document Type

Thesis

Degree Name

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

Department

Earth Science

Language

English

Subjects

Marine sediment -- Oregon -- Tillamook Bay -- Analysis

DOI

10.15760/etd.1927

Physical Description

1 online resource (ix, 67 pages)

Abstract

The author has sampled the recent bottom sediments in Tillamook Bay, Oregon. Sediment distribution is assessed in relation to sediment source areas and related to sedimentary environments. Particular attention was directed to the precision with which granulometric data can be stated. It was found that variance is quite high for granulometric parameters of the bay sediments.

Sediment distribution using different measures are displayed on charts of the bay. Size distributions of sediments at any given location are examined for geologic significance. Plotting of size distribution on graph paper using probability ordinate is shown to increase the ease of geologic interpretation.

Total heavy minerals were X-rayed and provenance determinations from this and other data show a marine sediment source for a small area of the bay near the mouth and terrestrial source for the remainder of the bay.

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

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Persistent Identifier

https://archives.pdx.edu/ds/psu/12455

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