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Autor Pankhurst, R.J. |
Documentos disponibles escritos por este autor (44)
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Casquet, César ; Baldo, Edgardo G. ; Pankhurst, R.J. ; Rapela, Carlos W. ; Galindo Francisco, Mª del Carmen ; Fanning, C.M. ; Saavedra, Julio | Geological Society of America | 2001New data suggest that the eastern margin of the Argentine Precordillera terrane comprises Grenvillian basement and a sedimentary cover derived from it that were together affected by Middle Ordovician deformation and metamorphism during accretion[...]texto impreso
Fanning, C.M. ; Pankhurst, R.J. ; Rapela, Carlos W. ; Baldo, Edgardo G. ; Casquet, César ; Galindo Francisco, Mª del Carmen | Geological Society of London. | 2004New U–Pb radiometric dates for K-bentonite horizons within the Lower Cambrian to Middle Ordovician platform carbonates from the Precordillera terrane of NWArgentina provide further constraints on models for the allochthonous or parautochthonous [...]texto impreso
Rapela, Carlos W. ; Casquet, César ; Baldo, Edgardo G. ; Dahlquist, Juan A. ; Pankhurst, R.J. ; Galindo Francisco, Mª del Carmen ; Saavedra, Julio | Universidad Complutense de Madrid | 2001El margen proto-andino de Gondwana ha sido el escenario de al menos dos orogénesis desde el desmembramiento del supercontinente Rodinia al final del Neoprotrozoico, hasta el reagrupamiento de las masas continentales en Pangea al final del Carbon[...]texto impreso
Alasino, P.H ; Casquet, César ; Pankhurst, R.J. ; Rapela, C.W. ; Dahlquist, J.A ; Galindo Francisco, María del Carmen ; Larrovere, M.A. ; Recio, C. ; Paterson, S.R. ; Colombo, F. ; Baldo, E.G. | Geological Society of America | 2016-04We studied the petrogenesis of mafic igneous rocks in the Famatinian arc in the western Sierra Famatina (NW Argentina), an Early Ordovician middle-crustal section in the proto-Andean margin of Gondwana. Mafic rock types consist of amphibolite, m[...]texto impreso
Rezaei Kahkaei, Mehdi ; Galindo Francisco, Mª del Carmen ; Pankhurst, R.J. ; Esmaeily, Dariush | Elsevier | 2011Geochemical and isotopic data (Sr, Nd) are presented for the Khalkhab–Neshveh pluton, an E-W elongated body of quartz monzogabbro, quartz monzodiorite, granodiorite and granite in the Urumieh– Dokhtar magmatic arc of Central Iran. The plutonic r[...]texto impreso
Dahlquist, Juan A. ; Galindo Francisco, Mª del Carmen ; Pankhurst, R.J. ; Rapela, Carlos W. ; Alasino, Pablo H. ; Saavedra, Julio ; Fanning, C.M. | Elsevier Science B.V., Amsterdam | 1995Garnet is an uncommon accessory mineral in igneous rocks but is petrologically significant. The Peñón Rosado granite (469± 4Ma) at Cerro Asperecito is an S-type granite that contains an unusual amount of magmatic garnet. Combined petrology, chem[...]texto impreso
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Verdecchia, Sebastián ; Casquet, César ; Baldo, Edgardo G. ; Pankhurst, R.J. ; Rapela, Carlos W. ; Fanning, C.M. ; Galindo Francisco, Mª del Carmen | Geological Society of London. | 2011The Early Palaeozoic stratigraphy and tectonic history of the Eastern Sierras Pampeanas of central Argentina are complicated by metamorphism and deformation resulting from the Pampean (545–510 Ma) and Famatinian (490–440 Ma) orogenies. We report[...]texto impreso
Baldo, Edgardo G. ; Casquet, César ; Pankhurst, R.J. ; Galindo Francisco, Mª del Carmen ; Rapela, Carlos W. ; Fanning, C.M. ; Dahlquist, Juan A. ; Murra, Juan Alberto | Blackwell Publishing Ltd | 2006A-type orthogneisses of mid Neoproterozoic age (774 ± 6 Ma, U-Pb SHRIMP zircon age), are reported for the first time from the Grenvillian basement of the Western Sierras Pampeanas in Argentina. These anorogenic meta-igneous rocks represent the l[...]texto impreso
Dahlquist, Juan A. ; Pankhurst, R.J. ; Rapela, Carlos W. ; Galindo Francisco, Mª del Carmen ; Alasino, Pablo H. ; Fanning, C.M. ; Saavedra, Julio ; Baldo, Edgardo G. | Instituto de Ciencias de la Tierra "Jaume Almera" (Barcelona) | 2008New SHRIMP U-Pb zircon ages are reported for igneous and sedimentary rocks of the Famatina Complex, constraining the age of the magmatism and the ensialic basins. Together with whole-rock and isotope geochemistry for the igneous rocks from the c[...]texto impreso
Alasino, Pablo H. ; Casquet, César ; Galindo Francisco, Mª del Carmen ; Pankhurst, R.J. ; Rapela, Carlos W. ; Dahlquist, Juan A. ; Recio, C. ; Baldo, Edgardo G. ; Larrovere, Mariano Alexis ; Ramacciotti, Carlos | Cambridge University Press | 2020We report a study of whole-rock O–H–Sr–Nd isotopes of Ordovician igneous and metamorphic rocks exposed at different crustal palaeodepths along c. 750 km in the Sierras Pampeanas, NW Argentina. The isotope compositions preserved in the intermedia[...]texto impreso
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Casquet, César ; Dahlquist, Juan Andrés ; Verdecchia, Sebastián Osvaldo ; Baldo, Edgardo ; Rapela, Carlos W. ; Galindo Francisco, Mª del Carmen ; Pankhurst, R.J. ; Morales, Matias M. ; Murra, Juan Alberto ; Fanning, C.M. | Elsevier | 2018-02The Pampean orogeny of northern Argentina resulted from Early Cambrian oblique collision of the Paleoproterozoic-Mesoproterozoic MARA block, formerly attached to Laurentia, with the Gondwanan Kalahari and Rio de la Plata cratons. The orogen is p[...]texto impreso