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Farallon Negro Complex

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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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Series: 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: 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...
FIGURES
Journal Article
Journal: Economic Geology
Published: 01 June 2015
Economic Geology (2015) 110 (4): 889-923.
... activity over the flat-slab Miocene arc occurred at 5 Ma. Subsequent magmatism over the flat slab was present in the back arc, in particular the Farallón Negro, Pocho, and San Luis magmatic centers ( Kay and Mpodozis, 2002 ). The detailed study of Altar samples allowed identifying types and subtypes...
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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
Series: AAPG Memoir
Published: 01 January 2015
DOI: 10.1306/13531931M108846
EISBN: 9781629812724
... of the CCOP at the time of that collision. Deposition of pelagic sediments of the Calentura Formation on top of the CCOP during Coniacian times (ca 89–86 Ma) (Luzieux et al., 2006) marks the interval when the CCOP was an isolated oceanic plateau within the Farallon plate and was moving along...
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Journal Article
Published: 15 June 2015
The Canadian Mineralogist (2015) 52 (6): 969-980.
... by Cenozoic units: the El Morterito Formation (conglomerates, sandstones, and claystones), the Farallón Negro Volcanic Complex (rhyolites, brecciated rhyolites, rhyolitic and granitic breccias, dacite porphyries, and rhyolitic, trachytic, and basaltic dikes), and undifferentiated Quaternary deposits...
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Journal Article
Journal: Geosphere
Published: 01 February 2011
Geosphere (2011) 7 (1): 219-239.
... major crustal boundaries among previously amalgamated terranes are inferred to have controlled the development of peripheral rift systems in southern South America ( Ramos et al., 1986 ; Ramos and Kay, 1991 ). To unravel the complex history of deformation of the Precordillera during the pre-Andean...
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Series: GSA Special Papers
Published: 01 January 2006
DOI: 10.1130/2006.2407(05)
... The Neuquén Embayment, which developed along the eastern foothills of the southern Central Andes, has a complex history of intraplate deformation. The Paleozoic basement fabrics exerted a major influence in Mesozoic and Cenozoic deformation. The most important feature is an E-W–striking fault...
Journal Article
Journal: Economic Geology
Published: 01 November 2010
Economic Geology (2010) 105 (7): 1191-1241.
... of silicic andesite to low-silica dacite. Lavas originally covered an area of ~120 to 125 km 2 centered on the Yanacocha volcano. Multiple vent complexes produced a series of coalescing domes (i.e., the Corra Blanca domes at Cerro Negro, Shoclla dome at Tatiana, and the San Jose, Chaquicocha, Sacsha...
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Journal Article
Journal: Economic Geology
Published: 01 May 2014
Economic Geology (2014) 109 (3): 621-641.
..., 0.016% 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 AbstractThe 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. Mantle...
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Journal Article
Published: 01 September 2008
Bulletin de la Société Géologique de France (2008) 179 (5): 465-481.
... then, and was replaced, from 12 to 7 Ma, by the emplacement of complex volcanic associations, the origin of which has been linked to the development of a slab tear (evolving into a slab window) in the downgoing Farallon plate [ Benoit et al., 2002 ; Michaud et al., 2006 ; Pallares et al., 2007 ]. These include...
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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)
... 15 and 10 Ma in the southern Cura Mallín basin ( Suárez and Emparán, 1995 , 1997 ). Rocks with similar ages occur on the eastern side of the Andes. Among these are volcaniclastic sequences in the Cajón Negro Formation ( Pesce, 1981 , 1987 ), which are associated with a depocenter bounded...
Journal Article
Journal: GSA Bulletin
Published: 01 November 2014
GSA Bulletin (2014) 126 (11-12): 1465-1480.
...F. Molina; J. Martí; G. Aguirre; E. Vega; L. Chavarría AbstractThe Cañas Dulces caldera is home to the Rincón de la Vieja–Santa María active volcanic complex and forms part of the northwestern sector of the inner magmatic arc of Costa Rica, together with other calderas and the active volcanoes...
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Journal Article
Journal: Economic Geology
Published: 01 August 2005
Economic Geology (2005) 100 (5): 887-904.
... Cretaceous strata (La/Smn = 1.5–2.7; Sm/Ybn = 1.6–2.7). The overlying middle Miocene Farellones Formation ranges from tholeiitic to calc-alkaline and from basalt to andesitic and has a similar LREE enrichment and fractionated HREE (La/Smn = 1.7–2.5; Sm/Ybn = 1.7–3.3). The Pliocene La Copa Rhyolite Complex...
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Series: Special Publications of the Society of Economic Geologists
Published: 01 January 2013
DOI: 10.5382/SP.17.06
EISBN: 9781629491639
... anorthosites, and Au-bearing gneisses, and (2) Paleozoic VMS (Besshi type?), sedex, and deposits associated with ultramafic-mafic complexes. The metallogeny of Mexico from the Mesozoic onward can be explained through the geologic evolution of two major regions: the Pacific margin and the Gulf of Mexico...
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