Plate boundary reorganization at a large-offset, rapidly propagating rift

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doi: 10.1038/378167a0
Authors:Hey, R. N.; Johnson, P. D.; Martinez, F.; Korenaga, J.; Somers, M. L.; Huggett, Q. J.; LeBas, T. P.; Rusby, R. I.; Naar, D. F.
Author Affiliations:Primary:
University of Hawaii, School of Ocean and Earth Science and Technology, Honolulu, HI, United States
Other:
Woods Hole Oceanographic Institution, United States
Institute of Oceanographic Sciences, United Kingdom
University of South Florida, United States
Volume Title:Nature (London)
Source:Nature (London), 378(6553), p.167-170. Publisher: Macmillan Journals, London, United Kingdom. ISSN: 0028-0836
Publication Date:1995
Note:In English. 32 refs.; illus., incl. sketch maps
Summary:Geophysical data collected over the Pacific-Nazca ridge, between the Easter and Juan Fernandez microplates, reveal a large offset propagating rift currently reorganizing the plate boundary and geometry. A 120 × 120 km overlap zone produced by 'duelling' propagation, between dual active spreading centres may be the critical stage of formation of a new microplate. [R.K.H.]
Subjects:Acoustical methods; Easter Microplate; Geophysical methods; Geophysical surveys; Juan Fernandez Microplate; Mechanism; Microplates; Mid-ocean ridges; Plate boundaries; Plate geometry; Plate rotation; Plate tectonics; Propagation; Rates; Rifting; Sea-floor spreading; Seabeam; Side-scanning methods; Sonar methods; Spreading centers; Surveys; East Pacific; East Pacific Rise; Nazca Ridge; Pacific Ocean; South Pacific; Southeast Pacific; Pacific-Nazca Ridge
Coordinates:S320000 S260000 W1090000 W1150000
Abstract Numbers:96M/2186
Record ID:1996004738
Copyright Information:GeoRef, Copyright 2019 American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom
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