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Farallon Negro Complex

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Journal Article
Published: 25 June 2018
Geological Magazine (2019) 156 (7): 1285–1294.
..., in the Chilean Patagonian Andes (the Casa de Piedra Volcanic Complex, the El Toro Formation and the Morro Negro basalts, although the latter are slightly younger; Demant, Suárez & De La Cruz, 2007 ; Fig. 1 ). (b) It may represent an early manifestation of the Palaeogene volcanism in the Chubut river...
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Simplified geologic map of <b>Farallón</b> <b>Negro</b> Volcanic <b>Complex</b> (FNVC), Argentin...
in > Geology
Published: 01 July 2017
Figure 1. Simplified geologic map of Farallón Negro Volcanic Complex (FNVC), Argentina, modified after Llambías (1972) . Geochronological constraints are from Sasso and Clark (1998) and Halter et al. (2004) . Sample locations given by stars (blue, Bajo de la Alumbrera porphyries; green
Journal Article
Journal: Economic Geology
Published: 01 January 2006
Economic Geology (2006) 101 (1): 71–94.
... included both effusive eruptions, forming several areally restricted lavas, and explosive eruptions, producing more widely dispersed (up to 5 km) tuff units, some up to 30-m thickness in proximal sections. Four key features of the volcanic stratigraphy suggest that the Farallon Negro volcanics need...
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Zircon trace element compositions fingerprinting magma reservoirs, <b>Farallón</b>...
in > Geology
Published: 01 July 2017
Figure 3. Zircon trace element compositions fingerprinting magma reservoirs, Farallón Negro Volcanic Complex, Argentina. A: Th/U of dated zircons plotted against their corresponding 206 Pb/ 238 U date. B: Zircon geochemical compositions obtained by laser ablation–inductively coupled plasma–mass
Journal Article
Journal: Geology
Published: 01 July 2017
Geology (2017) 45 (7): 623–626.
...Figure 1. Simplified geologic map of Farallón Negro Volcanic Complex (FNVC), Argentina, modified after Llambías (1972) . Geochronological constraints are from Sasso and Clark (1998) and Halter et al. (2004) . Sample locations given by stars (blue, Bajo de la Alumbrera porphyries; green...
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Series: Geological Society, London, Special Publications, Geological Society, London, Special Publications
Published: 01 January 2005
DOI: 10.1144/GSL.SP.2005.248.01.13
EISBN: 9781862394964
... of the evolution of the calcalkaline Farallón Negro Volcanic Complex hosting the Bajo de la Alumbrera porphyry Cu-Au deposit (Argentina), and supplementary fluid-chemical data from Bingham (Utah) and other examples, permit a quantitative re-assessment of the fundamental processes controlling the key economic...
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Journal Article
Journal: Economic Geology
Published: 01 June 2015
Economic Geology (2015) 110 (4): 889–923.
... arc, in particular the Farallón Negro, Pocho, and San Luis magmatic centers ( Kay and Mpodozis, 2002 ). LA-ICP-MS semiquantitative line scans of trace elements in quartz were measured using a Resonetics laser M-50-LR, an ArF laser (193 nm) Excimer laser ablation system, coupled to an Agilent 7700...
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Journal Article
Published: 15 June 2015
The Canadian Mineralogist (2014) 52 (6): 969–980.
... mineralizations of the Farallón Negro Volcanic Complex. It is located along the eastern slope of the Capillitas Range, in Catamarca province, northwestern Argentina ( Fig. 1 ). The deposit has been discontinuously mined for gold since pre-Colombian times. During the last two centuries extensive workings...
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Journal Article
Journal: GSA Bulletin
Published: 17 March 2021
GSA Bulletin (2021)
... to the complex geo- chemical signatures of these volcanic plateaus (De Ignacio et al., 2001; Kay et al., 2007; Aragón et al., 2013). Trench-normal absolute velocity of the South American Plate remained low through ca. 23 Ma, when the break-up of the oceanic Farallon Plate into Nazca and Cocos Plate reorganized...
Journal Article
Journal: Geosphere
Published: 01 February 2011
Geosphere (2011) 7 (1): 219–239.
... Uspallata Formation and that differences in structural geometries and metamorphism seem to be the effect of different strain and temperature states related to different crustal positions. Mafic and ultramafic rock complexes are interlayered in these metasedimentary rocks north of the study area ( Haller...
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Series: GSA Special Papers
Published: 01 January 2006
DOI: 10.1130/2006.2407(05)
... complete the sedimentary record. Intraplate deformation in the Neuquén Embayment has been active essentially without interruption since the Early Jurassic (Hettangian-Sinemurian). This deformation, which has varied in intensity and location, has resulted in a complex mosaic of modern...
Series: AAPG Memoir, AAPG Memoir
Published: 01 January 2015
DOI: 10.1306/13531931M108846
EISBN: 9781629812724
... dominantly involving only two arc systems (e.g., Sengor and Natalin, 1996). Perhaps because of renewed interest in the Lomonosov ridge, which is a type of ribbon continent, large and complex arc systems of Altaid type are now being recognized as ribbon continents in such mountain belts as the western...
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Journal Article
Journal: Economic Geology
Published: 01 November 2010
Economic Geology (2010) 105 (7): 1191–1241.
... with gold deposits at Quilish and Cerro Negro (~7 Moz Au) and stage 1 alunite (13.6–12.6 Ma). The Colorado Pyroclastics erupted in the center of the district and include the hornblende- and biotite-bearing andesitic to dacitic Cori Coshpa (12.6 Ma) and Maqui Maqui (12.5–12.4 Ma) ignimbrites. The Colorado...
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Journal Article
Journal: Economic Geology
Published: 01 May 2014
Economic Geology (2014) 109 (3): 621–641.
...% Mo 10.4–10.8 11.1–11.2 Yes Collision of the west-east Juan Fernández ridge segment with the trench Atkinson et al. (1996) ; Mathur et al. (2001) ; Reich et al. (2003) Agua Rica Farallón Negro Volcanic Complex 797 Mt @ 0.49% Cu, 0.23 g/t Au, 0.03% Mo 8.56 and 5.1 No Passage...
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Journal Article
Journal: GSA Bulletin
Published: 01 July 2017
GSA Bulletin (2017) 129 (7-8): 920–946.
...Amy K. Gilmer; R.S.J. Sparks; Alison C. Rust; Simon Tapster; Adam D. Webb; Dan N. Barfod Abstract The Don Manuel igneous complex and associated porphyry copper mineralization in the Andean Cordillera of central Chile demonstrate similarities between intrusive complexes associated with porphyry...
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Journal Article
Journal: Geosphere
Published: 01 December 2006
Geosphere (2006) 2 (7): 333–351.
... was likely concentrated in areas affected by earlier metasomatism related to devolatilization of the subducted Farallon slab. Deep-seated fractures associated with the Jemez Lineament may have focused melts beneath the Puerco necks and resulted in wholesale conversion of lherzolite into pyroxenite. 14...
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Journal Article
Journal: AAPG Bulletin
Published: 15 May 2019
AAPG Bulletin (2019) 103 (5): 1045–1069.
... California continental block ( Martín et al., 2015 ). The youngest sequence 4 ( Figure 5 ) is related to margin subsidence after late Oligocene collision of the Pacific–Farallon ridge ( Atwater, 1989 ). This collision produced a compressive event and uplift of the subduction complex and inversion of the fore...
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Journal Article
Published: 01 September 2008
Bulletin de la Société Géologique de France (2008) 179 (5): 465–481.
... ]. Then, between 12 and 7 Ma, the sinking of the deep part of the Farallon plate, combined to thermal erosion [ Pallares et al., 2007 ], led to the development of an asthenospheric window and to the emplacement at the surface of a complex magmatic association [ Benoit et al., 2002 ]. The partial melting...
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Journal Article
Journal: Geosphere
Published: 01 June 2008
Geosphere (2008) 4 (3): 496–519.
... of the Farallon slab; (2) the mafic magmas intruded or erupted separately, or mixed with more silicic magma generated by fractional crystallization and assimilation of crustal materials; and (3) these mafic magmas may have delivered significant amounts of sulfur and chalcophile metals to upper crustal magma...
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Series: GSA Special Papers
Published: 01 January 2006
DOI: 10.1130/2006.2407(13)
... In contrast, the Los Cardos–Centinela volcanic complex and Trohunco caldera show a different style for the youngest deformational pulse. In the Los Cardos–Centinela center, N-NW–trending structures indicate contraction during the late Quaternary. At the Trohunco caldera, the N-NW–trending system...