Counter-rotating microplates at the Galapagos triple junction

Nature

Volumn 433, Issue 7028, 2005, Pages 855-858

  Klein, Emily M ^a   Smith, Deborah K ^b   Williams, Clare H ^b   Schouten, Hans ^b  

^a DUKE UNIVERSITY   (United States)

^b WOODS HOLE OCEANOGRAPHIC INSTITUTION   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

DRAG; KINEMATICS; OCEANOGRAPHY;

GALAPAGOS MICROPLATES; HESS DEEP RIFT; PACIFIC OCEAN; RIFTS;

TECTONICS;

KINEMATICS; MICROPLATE; PLATE MOTION; PLATE TECTONICS; SPREADING CENTER; TECTONIC ROTATION; TRIPLE JUNCTION;

ARTICLE; GEOLOGY; GEOPHYSICS; MAGNETISM; PACIFIC OCEAN; PHOTOGRAPHY; PRIORITY JOURNAL; ROCK; ROTATION;

ECUADOR; GALAPAGOS ISLANDS; OCEANIC REGIONS; PACIFIC ISLANDS; PACIFIC OCEAN; SOUTH AMERICA; WESTERN HEMISPHERE; WORLD;

EID: 14644422273     PISSN: 00280836     EISSN: None     Source Type: Journal    
DOI: 10.1038/nature03262     Document Type: Article

References (22)

1. Lonsdale, P. Structural pattern of the Galapagos microplate and evolution of the Galapagos triple junction. J. Geophys. Res. 93, 13551-13574 (1988).
2. Lonsdale, P., Blum, N, & Puchelt. H. The RRR triple junction at the southern end of the Pacific-Cocos East Pacific Rise. Earth Planet. Sci. Lett. 109, 73-85 (1992).
3. Schouten, H, Klitgord, K. D. & Gallo, D. G. Edge-driven microplate kinematics. J. Geophys. Res. 98, 6689-6701 (1993).
4. Raff, A. D. Seafloor spreading: another rift. J. Geophys. Res. 73, 3699-3705 (1968).
5. Hey, R. Tectonic evolution of the Cocos-Nazca spreading center. Geol. Soc. Am. Bull 88, 1404-1420 (1977).
6. Lonsdale, P. Regional shape and tectonics of the equatorial East Pacific Rise. Mar. Geophys, Res. 3, 295-315 (1977).
7. Lonsdale, P. Linear volcanoes along the Pacific-Cocos plate boundary, 9°N to the Galapagos triple junction, Tectonophysics 116, 255-279 (1985).
8. Searle, R. C. & Francheteau, J. Morphology and tectonics of the Galapagos triple junction. Mar. Geophys. Res. 8, 95-129 (1986).
9. Baker, E. T. & Milburn, H. B. MAPR: A new instrument for hydrothermal plume mapping. Ridge Events 8, 23-25 (1997).
10. Hanna, H. D., Klein, E. M., Smith, D. K. & Zhu, W. The Melville Vancouver Leg 01 Scientific Party. Along-axis geochemical variations in basaltic glasses from the Incipient Rift adjacent to the East Pacific Rise at 2°40′N. Eos 84, 1495 (2003).
11. Sims, K. W. W. et al. Aberrant youth: chemical and isotopic constraints on the origin of off-axis lavas from the East Pacific Rise, 9°-10°N. Geochem. Geophys. Geosyst, 4, doi:10.1029/2002GC000443 (2002).
12. Parker, R. L. & Huestis, S. P. The inversion of magnetic anomalies in the presence of topography. J. Geophys. Res. 79, 1587-1594 (1974).
13. Macdonald, K. C, Miller, S. P., Huestis, S. P. & Spiess, F. N. Three-dimensional modeling of a magnetic reversal boundary from inversion of deep-tow measurements. J. Geophys. Res. 85, 3670-3680 (1980).
14. Gee, J. & Kent, D. V. Magnetization of axial lavas from the southern East Pacific Rise (14°-23°S): Geochemical controls on magnetic properties. J. Geophys. Res. 102, 24873-24886 (1997).
15. Gee, J. S., Cande, S. C, Hildebrand, J. A., Donnelly, K. & Parker, R. L. Geomagnetic intensity variations over the past 780 kyr obtained from near-seafloor magnetic anomalies. Nature 408, 827-832 (2000).
16. Carey, S. W. Continental Drift, a Symposium 177-355 (Geology Department, University of Tasmania, Hobart, 1958).
17. Naar, D. F. & Hey, R. N. Tectonic evolution of the Easter microplate. J. Geophys. Res. 96, 7961-7993 (1991).
18. Larson, R. L et al Roller-bearing tectonic evolution of the Juan Fernandez microplate. Nature 356, 571-576 (1992).
19. DeMets, C., Gordon, R. G., Argus, D. F. & Stein, S. Effect of recent revisions to the geomagnetic reversal timescale on estimates of current plate motions. Geophys. Res. Lett. 21, 2191-2194 (1994).
20. Mitchell, N. C. Distributed extension at the Indian Ocean triple junction. J. Geophys. Res. 96, 8019-8043 (1991).
21. Karson, J. A. et al Structure of uppermost fast-spread oceanic crust exposed at the Hess Deep Rift: Implications for subaxial processes at the East Pacific Rise. Geochem. Geophys. Geosyst. 3, doi:10.1029/ 2001GC000155 (2002).
22. Guyodo, Y. & Valet, J.-P. Global changes in intensity of the Earth's magnetic field during the past 800 kyr. Nature 399, 249-252 (1999).