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Pole of rotating analysis of present-day Juan de Fuca plate motionConvergence rates between the Juan de Fuca and North American plates are calculated by means of their relative, present-day pole of rotation. A method of calculating the propagation of errors in addition to the instantaneous poles of rotation is also formulated and applied to determine the Euler pole for Pacific-Juan de Fuca. This pole is vectorially added to previously published poles for North America-Pacific and 'hot spot'-Pacific to obtain North America-Juan de Fuca and 'hot spot'-Juan de Fuca, respectively. The errors associated with these resultant poles are determined by propagating the errors of the two summed angular velocity vectors. Under the assumption that hot spots are fixed with respect to a mantle reference frame, the average absolute velocity of the Juan de Puca plate is computed at approximately 15 mm/yr, thereby making it the slowest-moving of the oceanic plates.
Document ID
19850031797
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Nishimura, C.
(Brown University Providence, RI, United States)
Wilson, D. S.
(Stanford University Stanford, CA, United States)
Hey, R. N.
(California, University La Jolla, CA, United States)
Date Acquired
August 12, 2013
Publication Date
November 10, 1984
Publication Information
Publication: Journal of Geophysical Research
Volume: 89
ISSN: 0148-0227
Subject Category
Geophysics
Accession Number
85A13948
Funding Number(s)
CONTRACT_GRANT: NSF OCE-76-21966
CONTRACT_GRANT: NAS5-27234
Distribution Limits
Public
Copyright
Other

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