New 40Ar/39Ar dates from the Las Tazas complex, northern Chile: Tectonic significance

Journal of South American Earth Sciences

Volumn 13, Issue 1-2, 2000, Pages 115-122

  Wilson, Jeff ^a   Dallmeyer, R David ^b   Grocott, John ^a  

^a KINGSTON UNIVERSITY   (United Kingdom)

^b UNIVERSITY OF GEORGIA   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

ARGON-ARGON DATING; FAULT ZONE; MYLONITE; TECTONIC EVOLUTION;

CHILE;

EID: 0033926226     PISSN: 08959811     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0895-9811(00)00008-0     Document Type: Article

References (35)

1. Berg K., Baumann A. Plutonic and metasedimentary rocks from the Coastal Range of northern Chile: Rb-Sr and U-Pb isotopic systematics. Earth Plan. Sci. Lett. 75:1985;101-115.
2. Brook, M., Pankhurst, R.J., Shephard, T.J., Spiro, B., 1986. Andchron; Andean geochronology and metalogenesis, Overseas Development Agency Open-File Report 1-83.
3. Brown M. Comparative geochemical interpretation of Permian-Triassic plutonic complexes of the Coastal Range and Altiplano (25°30′-26°30′S), northern Chile. Geol. Soc. Am. Spec. Paper. 265:1991;157-177.
4. Brown M., Diaz F., Grocott J. Displacement history of the Atacama Fault System 25°00-27°00 S, northern Chile. Geol. Soc. Am. Bull. 105:1993;1165-1174.
5. Choukroune P., Lagarde J.-L. Plans de schistosité et déformation rotationelle: l'example de gneiss de Champtoceaux (Massif Armorican). Comp. Rend. Acad. Sci. Paris. D284:1977;2331-2334.
6. Dallmeyer R.D., Gil-lbaruchi J.L. Age of amphibolitic metamorphism in the ophiolitic unit of the Morias allochton (Portugal): Implications for early Hercynian orogenesis in the Iberian Massif. J. Geol. Soc. London. 147:1990;873-878.
7. 39Ar ages of detrital muscovite and whole-rock slate/phyllite, Narragansett Basin, RI-MA, USA: Implications for rejuvination during very low-grade metamorphism. Contrib. Min. Petrol. 110:1992;515-527.
8. 39Ar mineral ages. J. Geol. 104:1996;19-40.
9. Gapais D. Shear structures within deformed granites: Mechanical and thermal indicators. Geology. 17:1989;1144-1147.
10. Grocott J., Brown M., Dallmeyer R.D., Taylor G.K., Treloar P.J. Mechanisms of continental growth in extensional arcs: An example from the Andean plate-boundary zone. Geology. 22:1994;391-394.
11. Grocott J., Wilson J. Ascent and emplacement of granitic plutonic complexes in subduction-related extensional environments. Holness M. Deformation Enhanced Melt Segregation and Metamorphic Fluid Transport. Mineralogical Society Series, 7. 1997;173-192 Chapman and Hall.
12. 40Ar in hornblende. Contib. Mineral. Petrol. 78:1981;324-331.
13. Hervé M. Movimento sinistral en el Cretácico inferior de la zona de falla Atacama al norte de Paposo (24°S), Chile. Rev. Geol. Chile. 31:1987;37-42.
14. Hippertt J.F.M. "V"-pull-apart microstructures: A new shear-sense indicator. J. Struct. Geol. 15:1993;1393-1403.
15. Hodkinson D., Krogstad E.J., Brown M. Geochemical constraints on magma sources of Mesozoic continental arc plutonic complexes, Andean plate boundary zone, north Chile. Brown M., Piccoli P. The Origin of Granites and Related Rocks. vol. 1129:1995;66-67 U.S. Geol. Surv. Circ.
16. Hutton D.H.W. Granite emplacement mechanisms and tectonic controls: Inferences from deformation studies. Trans. Roy. Soc. Edinburgh; Earth Sci. 79:1988;615-631.
17. Law R.D. Crystallographic fabrics: A selective review of their applications to research in structural geology. Knipe R.J., Rutter E.H. Deformation Mechanisms, Rheology and Tectonics. Geol. Soc. Spec. Pub., vol. 54. 1990;335-352.
18. Naranjo J.A., Hervé F., Prieto X., Munizaga F. Actividad Cretácacia de la falla Atacama al este de Chañaral: Milonitizacion y plutonismo. Departamento de Geologia, Universidad de Chile, Santiago, Communicaciones. 34:1984;57-66.
19. Olsen T.S., Kohlstedt D.L. Natural deformation and recrystallisation of some intermediate plagioclase feldspars. Tectonophysics. 111:1985;107-131.
20. Passchier C.W., Simpson C. Porphyroclast systems as kinematic indicators. J. Struct. Geol. 8:1986;831-843.
21. Paterson S.R., Vernon R.H., Tobisch O.T. A review of criteria for the identification of magmatic and tectonic foliations in granitoids. J. Struct. Geol. 11:1989;349-363.
22. Pryer L.L. Microstructures in feldspars from a major crustal thrust zone: The Grenville Front, Ontario, Canada. J. Struct. Geol. 15:1993;21-36.
23. 39Ar dating standard, Mmhb-1. Chem. Geol. 66:1987;27-34.
24. Scheuber E., Andriessen P.A.M. The kinematic and geodynamic significance of the Atacama Fault Zone, northern Chile. J. Struct. Geol. 12:1990;243-257.
25. 39Ar and Rb-Sr analyses from ductile shear zones from the Atacama Fault Zone, northern Chile: The age of deformation. Tectonophysics. 250:1995;61-87.
26. Simpson C. Deformation of granitic rocks across the brittle-ductile transition. J. Struct. Geol. 7:1985;503-511.
27. Simpson C., Schmid S.M. An evaluation of criteria to deduce the sense of movement in sheared rocks. Geol. Soc. America Bull. 94:1983;1281-1288.
28. Steiger R.H., Jäger E. Subcommission of geochronology: convention on the use of decay constants in geo- and cosmochemistry. Earth Planet. Sci. Lett. 36:1977;359-363.
29. Sylvester A.G. Strike-slip faults. Geol. Soc. Am. Bull. 100:1988;1666-1703.
30. Tribe I.R., D'Lemos R.S. Significance of a hiatus in down temperature fabric development within syn-tectonic quartz diorite complexes, Channel Islands, UK. J. Geol. Soc. London. 153:1996;127-138.
31. Uribe F. Emplazamiento sintectónico del plutón Cerro Varillas con transcurrencia en el Cretácico inferior de la zona de falla Atacama, Chile. Rev. Geol. Chile. 31:1987;101-106.
32. Wilson, J. 1996. The Emplacement of the Las Tazas Plutonic Complex, Northern Chile. Unpublished Ph.D. Thesis, Kingston University, 223 pp.
33. Woodcock N.H. The role of strike-slip fault systems at plate boundaries. Phil. Trans. Roy. Soc. London. A317:1986;13-29.
34. York D. Least squares fitting of a straight line with correlated errors: Earth Plan. Sci. Lett. 110:1969;515-527.
35. Zonenshayn L.P., Savostin L.A., Sedov A.P. Global paleogeodynamic reconstructions for the last 160 Ma. Geotectonics. 18:1984;181-195.