Sponsor
Portland State University. Department of Geology
First Advisor
Michael L. Cummings
Date of Publication
1987
Document Type
Thesis
Degree Name
Master of Science (M.S.) in Geology
Department
Geology
Language
English
Subjects
Geophysical well logging -- Data processing, Stratigraphic Geology -- Statistical methods, Stratigraphic Geology -- Tertiary, Coal -- Geology -- Oregon -- Coos County
DOI
10.15760/etd.5614
Physical Description
1 online resource (126 p.)
Abstract
A computer technique for interpreting geophysical logs of drill-holes in quantitative lithologic terms has been developed and tested on the deposits of the late Eocene Coaledo Formation, a well-studied fluvio-deltaic complex in southwestern Oregon. The technique involves the use of induced and natural gamma logs for separation of coal and claystone from coarse-grained detrital rocks and the use of the ratio of resistivity and natural gamma responses (defined here as the "grain size index") to divide the coarse elastic rocks into a series of textural classes corresponding to the Wentworth-Odden particle size scale.
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/21127
Recommended Citation
Titus, Willard Sidney III, "Development and application of some quantitative stratigraphic techniques to the Coos Bay coalfield, a Tertiary fluvio-deltaic complex in southwestern Oregon" (1987). Dissertations and Theses. Paper 3730.
https://doi.org/10.15760/etd.5614
Comments
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