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Bajo de la Alumbrera Deposit

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Journal Article
Journal: Economic Geology
Published: 01 January 2006
Economic Geology (2006) 101 (1): 71–94.
...Anthony C. Harris; Scott E. Bryan; Rodney J. Holcombe Abstract The late Miocene Farallón Negro volcanics, comprising basaltic to rhyodacitic volcano-sedimentary rocks, host the Bajo de la Alumbrera porphyry copper-gold deposit in northwest Argentina. Early studies of the geology of the district...
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Journal Article
Journal: Economic Geology
Published: 01 December 2002
Economic Geology (2002) 97 (8): 1889–1920.
...Thomas Ulrich; Detlef Günther; Christoph A. Heinrich Abstract The chemical and physical evolution of magmatic to hydrothermal processes in the porphyry Cu-Au deposit of Bajo de la Alumbrera (northwestern Argentina) has been reconstructed with a quantitative fluid inclusion study. Fluid inclusion...
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Journal Article
Journal: Economic Geology
Published: 01 December 2001
Economic Geology (2001) 96 (8): 1743–1774.
...Thomas Ulrich; Detlef Günther; Christoph A. Heinrich Abstract The chemical and physical evolution of magmatic to hydrothermal processes in the porphyry Cu-Au deposit of Bajo de la Alumbrera (northwestern Argentina) has been reconstructed with a quantitative fluid inclusion study. Fluid inclusion...
FIGURES | View All (10)
Journal Article
Journal: Economic Geology
Published: 01 August 2005
Economic Geology (2005) 100 (5): 863–886.
...Anthony C. Harris; Suzanne D. Golding; Noel C. White Abstract Alteration zones at the gold-rich Bajo de la Alumbrera porphyry copper deposit in northwestern Argentina are centered on several porphyritic intrusions. They are zoned from a central copper-iron sulfide and gold-mineralized potassic...
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Journal Article
Journal: Economic Geology
Published: 01 December 2003
Economic Geology (2003) 98 (8): 1535–1574.
...John M. Proffett Abstract The Bajo de la Alumbrera porphyry Cu-Au deposit, Argentina, is in the eastern Andes, near the north edge of a region of reverse fault-bound basement uplifts that overlie a low-angle segment of the subduction zone. Alumbrera, now above the transition from steep to flat...
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Journal Article
Journal: Economic Geology
Published: 01 December 2002
Economic Geology (2002) 97 (8): 1865–1888.
...Thomas Ulrich; Christoph A. Heinrich Abstract This paper describes the igneous geology, alteration mineralogy, and geochemistry, as well as the ore mineralization history of Bajo de la Alumbrera, a world-class porphyry copper-gold deposit in northwestern Argentina. The deposit occurs in the K-rich...
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Journal Article
Journal: Economic Geology
Published: 01 December 2001
Economic Geology (2001) 96 (8): 1719–1742.
...Thomas Ulrich; Christoph A. Heinrich Abstract This paper describes the igneous geology, alteration mineralogy, and geochemistry, as well as the ore mineralization history of Bajo de la Alumbrera, a world-class porphyry copper-gold deposit in northwestern Argentina. The deposit occurs in the K-rich...
FIGURES | View All (13)
Image
Geologic map of intrusive rocks in the <span class="search-highlight">Bajo</span> <span class="search-highlight">de</span> <span class="search-highlight">la</span> <span class="search-highlight">Alumbrera</span> <span class="search-highlight">deposit</span> (modifi...
Published: 01 August 2005
F ig . 3. Geologic map of intrusive rocks in the Bajo de la Alumbrera deposit (modified after Proffett, 2003 ). Faults mapped by Proffett (2003) are marked as solid black lines.
Image
Fluid inclusion data for the <span class="search-highlight">Bajo</span> <span class="search-highlight">de</span> <span class="search-highlight">la</span> <span class="search-highlight">Alumbrera</span> <span class="search-highlight">deposit</span>. A. Compilation o...
Published: 01 August 2005
F ig . 9. Fluid inclusion data for the Bajo de la Alumbrera deposit. A. Compilation of the total homogenization data reported by Ulrich et al. (2002) . Vapor-rich inclusions (type 1) coexist with brine inclusions (type 3) and occur in potassic alteration assemblages, whereas the liquid-rich
Image
High Au concentrations (10–0.1 ppm) can be sustained in low-salinity (2–4 w...
Published: 01 October 2016
magmatic vapor. Complementary Fe-, Pb-, and Zn-enriched brines, probably depleted in sulfide, are preserved as residual fluids in porphyry copper deposits, including the Bajo de la Alumbrera deposit that occurs nearby in the same volcanic complex (see F ig . 5 ).
Journal Article
Published: 01 December 2004
The Canadian Mineralogist (2004) 42 (6): 1757–1769.
.... The Capillitas diatreme is located within the Farallón Negro volcanic complex, which is host to large porphyry Cu–Au deposits (Bajo de la Alumbrera, Agua Rica) and genetically related epithermal vein-type deposits. The mineral assemblage that contains putzite is composed of bornite, chalcocite, sphalerite...
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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 August 2011
Geology (2011) 39 (8): 731–734.
... an irregular subvertical contact (EP3, right part of picture), before both rocks were cut by second generation of quartz veins (diagonal toward lower right). The porphyry-Cu-Au deposit of Bajo de la Alumbrera ( Ulrich et al., 1999 , 2002 ; Proffett, 2003 ; Halter et al., 2005 ; Harris et al...
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Journal Article
Journal: Geology
Published: 01 July 2017
Geology (2017) 45 (7): 623–626.
... and trace element geochemistry with (2) plagioclase textures, we discovered an intimate connection between an ignimbrite eruption and a nearby world-class porphyry deposit (Bajo de la Alumbrera in the late Miocene Farallón Negro Volcanic Complex of Argentina). Our results indicate that the magmatic...
FIGURES
Series: Special Publications of the Society of Economic Geologists
Published: 01 January 2012
DOI: 10.5382/SP.16.22
EISBN: 9781629490410
... sulfur and that of other metals for chloride, and by physical-chemical models involving the fluid density. Single-phase, vapor-rich, and hypersaline liquid inclusions from giant porphyry deposits at Bingham, El Teniente, Bajo de la Alumbrera, Questa, and Butte present a characteristic Zn/Pb ratio...
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Journal Article
Journal: Economic Geology
Published: 01 June 2015
Economic Geology (2015) 110 (4): 857–888.
... suggest high K calc-alkalic composition, similar to the monzonitic Cu-(Mo-Au) class of porphyry deposits, which includes Bingham and Bajo de la Alumbrera. Red Chris is also classified as an A vein type deposit due to strong control of higher grade Cu-Au by A vein stockworks with abundant disseminated Cu...
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Series: Special Publications of the Society of Economic Geologists
Published: 01 January 2005
DOI: 10.5382/SP.12.11
EISBN: 9781629490366
... of mapping described herein include the Ann Mason porphyry copper deposit, Yerington district, Nevada; the Bajo de la Alumbrera mine; Argentina; the El Abra-Fortuna-Chuquicamata districts of Chile; and the Pioneer Mountains of Montana. Beyond the use of traditional paper-based mapping methods, recent...
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Journal Article
Journal: Economic Geology
Published: 01 March 2017
Economic Geology (2017) 112 (2): 221–244.
... unpublished data provided in supplementary Table S5). The latter melt inclusion data were calculated using the Al 2 O 3 content of finely crushed bulk rock of that same sample as an internal standard. For the porphyry Cu-Mo-Au deposit at Bajo de la Alumbrera, Halter et al. (2005) constrained the Cu content...
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Journal Article
Published: 01 March 2007
Geological Magazine (2007) 144 (2): 413–414.
... of the elemental composition of fluid and melt inclusions to document the evolution of porphyry copper deposits, particularly with reference to the Bajo de la Alumbrera deposit in Argentina. ...
Image
A. Calculated δ 18 O and δD values of fluids responsible for different alte...
Published: 01 August 2005
F ig . 10. A. Calculated δ 18 O and δD values of fluids responsible for different alteration assemblages at the Bajo de la Alumbrera porphyry copper-gold deposit (includes recalculated data from Ulrich et al., 2002 ). Compositions are based on model fluid temperatures determined from fluid