Subduction erosion related to spreading-ridge subduction: Taitao peninsula (Chile margin triple junction area)

Geology

Volumn 24, Issue 8, 1996, Pages 723-726

  Bourgois, J ^a   Martin, H ^b   Lagabrielle, Y ^c   Le Moigne, J ^c   Frutos Jara, J ^d  

^a CNRS   (France)

^b UNIVERSITÉ CLERMONT AUVERGNE   (France)

^c UNIVERSITÉ DE BRETAGNE OCCIDENTALE   (France)

^d UNIVERSITY OF CONCEPCIÓN   (Chile)

Author keywords

[No Author keywords available]

Indexed keywords

GEOLOGY;

CHEMICAL CHARACTERISTIC; CONVERGENT MARGIN; PLIOCENE; SPREADING RIDGE; SUBDUCTION EROSION; TRIPLE JUNCTION;

EROSION;

CONVERGENT MARGIN; EMPLACEMENT; EROSION RATE; PLUTON; SPREADING CENTER; SUBDUCTION; TECTONICS; TRIPLE JUNCTION; GEODYNAMICS; MID OCEAN RIDGE; MID-OCEAN RIDGES;

AISEN; CHILE; TAITAO PENINSULA; CHILE MARGIN; PACIFIC;

EID: 0030481661     PISSN: 00917613     EISSN: None     Source Type: Journal    
DOI: 10.1130/0091-7613(1996)024<0723:SERTSR>2.3.CO;2     Document Type: Article

References (32)

1. Atherton, M. P., and Petford, N., 1993, Generation of sodium-rich magmas from newly underplated basaltic crust: Nature, v. 362, p. 144-146.
2. Barker, F., 1979, Trondhjemites: Definition, environment and hypothesis origin, in Barker, F., ed., Trondhjemites, dacites and related rocks: Amsterdam, Netherlands, Elsevier, p. 1-12.
3. Barker, F., and Arth, J. G., 1976, Generation of trondhjemitic-tonalitic liquids and Archean bimodal trondhjemite-basalt suites: Geology, v. 4, p. 596-600.
4. Beard, J. S., and Lofgren, G. E., 1989, Effect of water on the composition of partial melts of greenstones and amphibolites: Science, v. 224, p. 195-197.
5. Berhmann, J. H., Lewis, S. D., and ODP Leg 141 Scientific Party, 1992, Geology and tectonics of the Chile triple junction [abs.]: Eos (Transactions, American Geophysical Union), v. 73, p. 404-410.
6. Bourgois, J., 1989, Tectonic history of the Peruvian margin with special reference to tectonic erosion: International Geological Congress, 28th, Washington, D.C., Abstracts, v. 1, p. 184.
7. Bourgois, J., Lagabrielle, Y., Le Moigne, J., Urbina, O., Janin, M. C., and Beuzart, P., 1993, Preliminary results of a field study of the Taitao ophiolite (southern Chile): Implications for the evolution of the Chile triple junction: Ofioliti, v. 18, p. 113-129.
8. Cahill, T., and Isacks, B. L., 1985, Shape of the subducted Nazca plate: Eos (Transactions, American Geophysical Union), v. 66, p. 299.
9. Cande, S. C., Leslie, R. B., Parra, J. C., and Hobart, M., 1987, Interaction between the Chile ridge and Chile trench: Geophysical and geothermal evidences: Journal of Geophysical Research, v. 92, p. 495-520.
10. Cloos, M., 1993, Lithospheric buoyancy and collisional orogenesis: Subduction of oceanic plateaus, continental margins, island arcs, spreading ridges, and seamounts: Geological Society of America Bulletin, v. 105, p. 715-737.
11. Defant, M. J., and Drummond, M. S., 1990, Derivation of some modern arc magmas by melting of young subducted lithosphere: Nature, v. 347, p. 662-665.
12. Drummond, M. S., and Defant, M. J., 1990, A model for trondhjemite-tonalite-dacite genesis and crustal growth via slab melting: Archean to modern comparisons: Journal of Geophysical Research, v. 95, p. 21503-21521.
13. Forsythe, R. D., Nelson, E. P., Carr, M. J., Kaeding, M. E., Hervé, M., Mpodozis, C. M., Soffia, M. J., and Harambour, S., 1986, Pliocene near trench magmatism in southern Chile: A possible manifestation of ridge collision: Geology, v. 14, p. 23-27.
14. Kaeding, M., Forsythe, R. D., and Nelson, E. P., 1990, Geochemistry of the Taitao ophiolite and near-trench intrusions from the Chile triple junction: Journal of South American Earth Sciences, v. 3, p. 161-177.
15. Kay, R. W., 1978, Aleutian magnesian andesites: Melts from subducted Pacific ocean crust: Journal of Volcanology and Geothermal Research, v. 4, p. 117-132.
16. Kay, S. Mahlburg, Ramos, V., and Marquez, M., 1993, Evidence in Cerro Pampa volcanic rocks for slab-melting prior to ridge-trench collision in southern South America: Journal of Geology, v. 101, p. 703-714.
17. Kelemen, P. B., Shimizu, N., and Dunn, T., 1993, Relative depletion of niobium in some arc magmas and the continental crust: Partitioning of K, Nb, La and Ce during melt/rock reaction in the upper mantle: Earth and Planetary Science Letters, v. 120, p. 111-134.
18. Lagabrielle, Y., Le Moigne, J., Maury, R. C., Cotten, J., and Bourgois, J., 1994, Volcanic record of the subduction of an active spreading ridge, Taitao peninsula (southern Chile): Geology, v. 22, p. 515-518.
19. Leslie, R. B., 1986, Cenozoic tectonics of southern Chile: Triple junction migration, ridge subduction, and forearc evolution [Ph.D. thesis]: New York, University of Columbia, 276 p.
20. Martin, H., 1986, Effect of steeper Archean geothermal gradient on geochemistry of subduction-zone magmas: Geology, v. 14, p. 753-756.
21. Martin, H., 1987, Archaean and modern granitoids as indicators of changes in geodynamic processes: Revista Brasileira de Geociencias, v. 17, p. 360-365.
22. Martin, H., 1994, The Archaean grey gneisses and the genesis of the continental crust, in Condie, X. E., ed., Archean crustal evolution: Amsterdam, Netherlands, Elsevier, p. 205-259.
23. Mpodozis, C. M., Hervé, M., Nasi, C., Soffia, M. J., Forsythe, R. D., and Nelson, E. P., 1985, El magmatismo plioceno de Peninsula Tres Montes y su relacion con la evolucion del punto triple de Chile austral: Revista Geológica de Chile, v. 25-26, p. 13-28.
24. Murdie, R. E., Prior, D. J., Styles, P., Flint, S. S., Pearce, R. G., and Agar, S. M., 1993, Seismic responses to ridge-transform subduction: Chile triple junction: Geology, v. 21, p. 1095-1098.
25. Rapp, R. P., Watson, E. B., and Miller, C. F., 1991, Partial melting of amphibolite/eclogite and the origin of Archaean trondhjemites and tonalites: Precambrian Research, v. 51, p. 1-25.
26. Scholl, W. D., von Huene, R. E., Vallier, T. L., and Howell, D. G., 1980, Sedimentary masses and concepts about tectonic processes at underthrust ocean margins: Geology, v. 8, p. 564-568.
27. Sosson, M., Bourgois, J., and Mercier de Lépinay, B., 1994, SeaBeam and deep-sea submersible Nautile surveys in the Chiclayo canyon off Peru (7°S): Subsidence and subduction-erosion of an Andean type convergent margin since Pliocene times: Marine Geology, v. 118, p. 237-256.
28. Stern, C., and Kilian, R., 1996, The role of slab melting during genesis of andesites/adakites of the Austral volcanic zone of the Andes: Contributions to Mineralogy and Petrology (in press).
29. von Huene, R. E., and Lallemand, S. E., 1990, Tectonic erosion along the Japan and Peru convergent margins: Geological Society of America Bulletin, v. 102, p. 704-720.
30. von Huene, R. E., and Scholl, D. W., 1991, Observations at convergent margins concerning sediment subduction, subduction erosion and the growth of continental crust: Review of Geophysics, v. 29, p. 279-316.
31. von Huene, R. E., Langseth, M., Nasu, N., and Okada, H., 1980, Summary, Japan trench transect, in Scientific Party, Initial reports of the Deep Sea Drilling Project, Volume 56, 57, Part 1: Washington, D.C., U.S. Government Printing Office, p. 473-488.
32. Wolf, M. B., and Wyllie, P. J., 1994, Dehydration-melting of amphibolite at 10 kbar: Effects of temperature and time: Contributions to Mineralogy and Petrology, v. 115, p. 369-383.