A GPS estimate of relative motion between North and South America
GPS velocity data are used to estimate the Euler vector describing rigid body motion of North America relative to South America. Assuming the boundary between the North and South American plates is located near the Fifteen Twenty fracture zone in the equatorial Atlantic, the Euler vector predicts ex...
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| Veröffentlicht in: | Geophysical research letters 1997-03, Vol.24 (5), p.535-538 |
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| container_title | Geophysical research letters |
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| creator | Dixon, Timothy H. Mao, Ailin |
| description | GPS velocity data are used to estimate the Euler vector describing rigid body motion of North America relative to South America. Assuming the boundary between the North and South American plates is located near the Fifteen Twenty fracture zone in the equatorial Atlantic, the Euler vector predicts extension across the Royal Trough up to 1 mm/yr, and convergence across the Barracuda Ridge at about 2 mm/yr, in agreement with geological estimates averaged over tens of millions of years. Further west, convergence between North and South America at rates up to 8 mm/yr may contribute to deformation of the Caribbean plate along its southwest boundary with South America. |
| doi_str_mv | 10.1029/97GL00284 |
| format | Article |
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Assuming the boundary between the North and South American plates is located near the Fifteen Twenty fracture zone in the equatorial Atlantic, the Euler vector predicts extension across the Royal Trough up to 1 mm/yr, and convergence across the Barracuda Ridge at about 2 mm/yr, in agreement with geological estimates averaged over tens of millions of years. Further west, convergence between North and South America at rates up to 8 mm/yr may contribute to deformation of the Caribbean plate along its southwest boundary with South America.</description><identifier>ISSN: 0094-8276</identifier><identifier>EISSN: 1944-8007</identifier><identifier>DOI: 10.1029/97GL00284</identifier><identifier>CODEN: GPRLAJ</identifier><language>eng</language><publisher>Washington, DC: Blackwell Publishing Ltd</publisher><subject>Americas ; Boundaries ; Convergence ; Earth sciences ; Earth, ocean, space ; Estimates ; Exact sciences and technology ; Fracture mechanics ; Internal geophysics ; Mathematical analysis ; Rigid-body dynamics ; Solid-earth geophysics, tectonophysics, gravimetry ; Tectonics. Structural geology. 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Res. Lett</addtitle><description>GPS velocity data are used to estimate the Euler vector describing rigid body motion of North America relative to South America. Assuming the boundary between the North and South American plates is located near the Fifteen Twenty fracture zone in the equatorial Atlantic, the Euler vector predicts extension across the Royal Trough up to 1 mm/yr, and convergence across the Barracuda Ridge at about 2 mm/yr, in agreement with geological estimates averaged over tens of millions of years. Further west, convergence between North and South America at rates up to 8 mm/yr may contribute to deformation of the Caribbean plate along its southwest boundary with South America.</description><subject>Americas</subject><subject>Boundaries</subject><subject>Convergence</subject><subject>Earth sciences</subject><subject>Earth, ocean, space</subject><subject>Estimates</subject><subject>Exact sciences and technology</subject><subject>Fracture mechanics</subject><subject>Internal geophysics</subject><subject>Mathematical analysis</subject><subject>Rigid-body dynamics</subject><subject>Solid-earth geophysics, tectonophysics, gravimetry</subject><subject>Tectonics. Structural geology. 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Structural geology. Plate tectonics</topic><topic>Vectors (mathematics)</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Dixon, Timothy H.</creatorcontrib><creatorcontrib>Mao, Ailin</creatorcontrib><collection>Istex</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Aerospace Database</collection><collection>Civil Engineering Abstracts</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Geophysical research letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Dixon, Timothy H.</au><au>Mao, Ailin</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A GPS estimate of relative motion between North and South America</atitle><jtitle>Geophysical research letters</jtitle><addtitle>Geophys. Res. Lett</addtitle><date>1997-03-01</date><risdate>1997</risdate><volume>24</volume><issue>5</issue><spage>535</spage><epage>538</epage><pages>535-538</pages><issn>0094-8276</issn><eissn>1944-8007</eissn><coden>GPRLAJ</coden><abstract>GPS velocity data are used to estimate the Euler vector describing rigid body motion of North America relative to South America. Assuming the boundary between the North and South American plates is located near the Fifteen Twenty fracture zone in the equatorial Atlantic, the Euler vector predicts extension across the Royal Trough up to 1 mm/yr, and convergence across the Barracuda Ridge at about 2 mm/yr, in agreement with geological estimates averaged over tens of millions of years. Further west, convergence between North and South America at rates up to 8 mm/yr may contribute to deformation of the Caribbean plate along its southwest boundary with South America.</abstract><cop>Washington, DC</cop><pub>Blackwell Publishing Ltd</pub><doi>10.1029/97GL00284</doi><tpages>4</tpages><oa>free_for_read</oa></addata></record> |
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| identifier | ISSN: 0094-8276 |
| ispartof | Geophysical research letters, 1997-03, Vol.24 (5), p.535-538 |
| issn | 0094-8276 1944-8007 |
| language | eng |
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| source | Wiley-Blackwell Journals; Wiley Free Archive; Wiley-Blackwell AGU Digital Archive; EZB Electronic Journals Library |
| subjects | Americas Boundaries Convergence Earth sciences Earth, ocean, space Estimates Exact sciences and technology Fracture mechanics Internal geophysics Mathematical analysis Rigid-body dynamics Solid-earth geophysics, tectonophysics, gravimetry Tectonics. Structural geology. Plate tectonics Vectors (mathematics) |
| title | A GPS estimate of relative motion between North and South America |
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