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
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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