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Autor Rapela, Carlos W. |
Documentos disponibles escritos por este autor (47)
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Galindo Francisco, Mª del Carmen ; Pankhurst, R.J. ; Casquet, César ; Coniglio, Jorge ; Baldo, Edgardo G. ; Rapela, Carlos W. ; Saavedra, Julio | Taylor & Francis | 1997Fluorite mineralization at the La Nueva and Bubu mines yields Sm-Nd ages of 131 ± 22 and 117 ± 26 Ma, respectively. Thus, the mineralization most probably is related to a late Gondwanian (Lower Cretaceous) extensional and magmatic event that aff[...]texto impreso
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Ramacciotti, Carlos ; Casquet, César ; Baldo, Edgardo G. ; Galindo Francisco, Mª del Carmen ; Pankhurst, Robert J. ; Verdecchia, Sebastián Osvaldo ; Rapela, Carlos W. ; Fanning, C.M. | Springer Verlag | 2018-10The Western Sierras Pampeanas (WSP) of Argentina record a protracted geological history from the Mesoproterozoic assembly of the Rodinia supercontinent to the early Paleozoic tectonic evolution of SW Gondwana. Two well-known orogenies took place[...]texto impreso
Rapela, Carlos W. ; Pankhurst, R.J. ; Casquet, César ; Fanning, C.M. ; Galindo Francisco, Mª del Carmen ; Baldo, Edgardo G. | Sociedad Geológica de España | 2005The Neoproterozoic Difunta Correa meta-sedimentary sequence (DCSS) of Western Sierras Pampeanas is a cover to a rejuvenated Grenvillian basement. The Western Sierras Pampeanas are allegedly part of the exotic Precordillera Terrane, which was acc[...]texto impreso
Casquet, César ; Pankhurst, R.J. ; Galindo Francisco, Mª del Carmen ; Rapela, Carlos W. ; Fanning, C.M. ; Baldo, Edgardo G. ; Dahlquist, Juan A. ; González Casado, José Manuel ; Colombo, F. | Elsevier Science B.V., Amsterdam | 2008A deformed ca. 570Ma syenite–carbonatite body is reported from a Grenville-age (1.0–1.2 Ga) terrane in the Sierra de Maz, one of theWestern Sierras Pampeanas of Argentina. This is the first recognition of such a rock assemblage in the basement o[...]texto impreso
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Alasino, Pablo H. ; Dahlquist, Juan A. ; Pankhurst, R.J. ; Galindo Francisco, Mª del Carmen ; Casquet, César ; Rapela, Carlos W. ; Larrovere, M.A. ; Fanning, C.M. | Elsevier Science B. V., Amsterdam | 2012A recently discovered granitic intrusion at Cerro La Gloria in western Sierra de Famatina (NW Argentina) is representative of sub- to mid-alkaline Carboniferous magmatism in the region. The main rock type consists of microcline, quartz and plagi[...]texto impreso
Galindo Francisco, Mª del Carmen ; Baldo, Edgardo G. ; Pankhurst, R.J. ; Casquet, César ; Rapela, Carlos W. ; Saavedra, Julio | Sociedad Geológica de España | 1996The fluorite mineralization from the La Nueva Mine, has a Sm-Nd age of 130 ± 19 Ma, and thus must be related to the Lower Cretaceous late-Gondwanic extensional and magmatic event that affected the Sierras Pampeanas Basement of Argentina. Hydroth[...]texto impreso
Dahlquist, Juan A. ; Alasino, Pablo H. ; Galindo Francisco, Mª del Carmen ; Pankhurst, R.J. ; Rapela, Carlos W. ; Saavedra, Julio ; Casquet, César ; Baldo, Edgardo G. ; González Casado, José Manuel ; Fanning, C.M. | Asociación Geológica Argentina. Buenos Aires | 2006-03El granate es un mineral accesorio poco común en rocas ígneas y constituye un tema relevante de la petrología ígnea. Estudios combinados de petrología, química mineral, geoquímica de roca total y geoquímica isotópica en el cerro Asperecito indic[...]texto impreso
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Casquet, César ; Rapela, Carlos W. ; Pankhurst, R.J. ; Baldo, Edgardo G. ; Galindo Francisco, Mª del Carmen ; Fanning, C.M. ; Dahlquist, Juan A. | Elsevier Science B. V., Amsterdam | 2012Metasedimentary high-pressure upper amphibolite facies gneisses (1.2±0.1 GPa and 780±45 °C) at Las Chacras, Sierra de Valle Fértil, are tectonically juxtaposed to thewesternmost parts (outboard) of the Famatinian (Early Ordovician) magmatic arc,[...]texto impreso
Casquet, César ; Galindo Francisco, Mª del Carmen ; Rapela, Carlos W. ; Pankhurst, R.J. ; Baldo, Edgardo G. ; Dahlquist, Juan A. ; Fanning, C.M. ; González Casado, José Manuel ; Saavedra, Julio | Instituto Geológico y Minero de España | 2005Massif-type anorthosites are igneous complexes that consist for the most part of anorthosite, a plagioclase- rich plutonic rock. They are particularly abundant within or near the worldwide Grenvillian mobile belt (1.0-1.2Ga), which resulted from[...]texto impreso
Casquet, César ; Pankhurst, R.J. ; Rapela, Carlos W. ; Galindo Francisco, Mª del Carmen ; Dahlquist, Juan A. ; Baldo, Edgardo G. ; Saavedra, Julio ; González Casado, José Manuel ; Fanning, C.M. | Geological Society of London. | 2004-01We report the discovery of massif-type anorthosites in the Andean basement of the Western Sierras Pampeanas of Argentina. U–Pb zircon dating (by sensitive high-resolution ion microprobe) of a cogenetic gabbronorite dyke yields ages of 1070 ± 41 [...]texto impreso
Dahlquist, Juan A. ; Pankhurst, R.J. ; Gaschnig, Richard M. ; Pankhurst, R.J. ; Rapela, Carlos W. ; Casquet, César ; Alasino, Pablo H. ; Galindo Francisco, Mª del Carmen ; Baldo, Edgardo G. | Elsevier Science B. V., Amsterdam | 2013Wereport the first study integrating in situ U–Pb and Hf isotope data frommagmatic zircon andwhole-rock Sm–Nd isotope data for granitic rocks of the Sierras Pampeanas, Argentina, in order to evaluate the Palaeozoic growth of the proto-Andean mar[...]texto impreso
Casquet, César ; Rapela, Carlos W. ; Pankhurst, R.J. ; Baldo, Edgardo G. ; Galindo Francisco, Mª del Carmen ; Fanning, C.M. ; Dahlquist, Juan A. ; Saavedra, Julio | Elsevier B.V. | 2012The role played by Paleoproterozoic cratons in southern South America from the Mesoproterozoic to the Early Cambrian is reconsidered here. This period involved protracted continental amalgamation that led to formation of the supercontinent Rodin[...]texto impreso
Rapela, Carlos W. ; Verdecchia, Sebastián O. ; Casquet, César ; Pankhurst, Robert J. ; Baldo, Edgardo G. ; Galindo Francisco, Mª del Carmen ; Murra, Juán A. ; Dahlquist, Juan A. ; Fanning, C. Mark | Elsevier | 2016-04The provenance of Neoproterozoic to Early Paleozoic sedimentary rocks in the Sierras Pampeanas has beenestablished using U–Pb SHRIMP age determination of detrital zircons in twelve metasedimentary samples,with supplementary Hf and O isotope anal[...]texto impreso
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
Murra, Juán A. ; Casquet, César ; Locati, Francisco ; Galindo Francisco, María del Carmen ; Baldo, Edgardo G. ; Pankhurst, Robert J. ; Rapela, Carlos W. | Elsevier | 2016-08The Sierras de Córdoba Metasedimentary Series consists of marbles and metasiliciclastic rocks of Ediacaran to early Cambrian age (ca. 630 and 540 Ma) that underwent high-grade metamorphism during the collisional Pampean orogeny in the early Camb[...]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
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[...]