Long wavelength gravity anomalies and implications concerning a descending lithospheric slab in the Pacific Northwest

Graduate Thesis Or Dissertation

Pubblico Deposited

Citeable URL: https://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/gx41mn262

Descriptions

Attribute Name	Values
Creator	MacFarlane, William Thomas
Abstract	The thermal regime of a postulated descending lithospheric slab is calculated. The gravity anomaly associated with such a structure is large in amplitude and long in wavelengh. Observed free-air gravity anomalies in the Pacific Northwest do not indicate a gravitational effect due to a descending slab. Two hypothetical compensation models proposed may mask the effects of the slab. However, a more complex form of compensation seems required. Extraction of long wavelength signals from the gravity record using matched filters is demonstrated. Caution in the interpretation of potential field records by this class of filters is recommended.
Resource Type	Dissertation
Date Available	2012-04-03T16:44:07+00:00
Date Issued	1974-08-09
Degree Level	Doctoral
Degree Name	Doctor of Philosophy (Ph.D.)
Degree Field	Oceanography
Degree Grantor	Oregon State University
Commencement Year	1975
Advisor	Couch, Richard W.
Committee Member	Schecter, L. Caldwell, D. Stone, W. Bodvarsson, Gunnar
Academic Affiliation	School of Oceanography
Non-Academic Affiliation	Oregon State University. Graduate School
Subject	Submarine geology
Dichiarazione dei diritti	Copyright Not Evaluated
Publisher	Oregon State University
Peer Reviewed	No
Language	English [eng]
Digitization Specifications	File scanned at 300 ppi (Monochrome) using ScandAll PRO 1.8.1 on a Fi-6670 in PDF format. CVista PdfCompressor 4.0 was used for pdf compression and textual OCR.
Replaces	http://hdl.handle.net/1957/28551

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