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Abstract:

The Esquel low-sulfidation epithermal vein deposit in Chubut province, Argentina, is hosted by a Late Jurassic bimodal arc assemblage. Shortwave infrared (SWIR) reflectance spectroscopy of vein samples using a band-held field spectrometer identified ammonium-bearing illite, jarosite, and adularia (buddingtonite) in banded quartz displaying colloform and crustiform textures. The SWIR technique proved to be a rapid and accurate means of detecting ammonium-bearing species, particularly buddingtonite, which provides evidence for paleoboiling zones and thus of precious metal mineralization. © 2008 Society of Economic Geologists, Inc.

Registro:

Documento: Artículo
Título:Identification of ammonium-bearing minerals by shortwave infrared reflectance spectroscopy at the Esquel gold deposit, Argentina
Autor:Soechting, W.; Rubinstein, N.; Godeas, M.
Filiación:Minas Argentinas, San Luis 238, oeste San Juan, Argentina
Universidad de Buenos Aires-Consejo, Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires-Consejo, Argentina
Servicio Geológico Minero Argentino (SEGEMAR), Av. Julio A. Roca 651, 8o piso, 1322 Ciudad Autónoma de Buenos Aires, Argentina
Departamento de Geología, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, 1428 Ciudad Autónoma de Buenos Aires, Argentina
Palabras clave:Clay minerals; Feldspar; Gold deposits; Infrared spectroscopy; Mineralogy; Minerals; Oxide minerals; Precious metals; Quartz; Reflection; Spectrum analysis; Argentina; Buddingtonite; Epithermal; Jarosite; Jurassic; Reflectance spectroscopies; Short waves; Shortwave infrared reflectances; Sulfidation; Vein deposits; Ammonium compounds; ammonium; epithermal deposit; gold; infrared spectroscopy; mineralization; ore deposit; quartz vein; shortwave radiation; Argentina; South America
Año:2008
Volumen:103
Número:4
Página de inicio:865
Página de fin:869
DOI: http://dx.doi.org/10.2113/gsecongeo.103.4.865
Título revista:Economic Geology
Título revista abreviado:Econ. Geol.
ISSN:03610128
CODEN:ECGLA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03610128_v103_n4_p865_Soechting

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Citas:

---------- APA ----------
Soechting, W., Rubinstein, N. & Godeas, M. (2008) . Identification of ammonium-bearing minerals by shortwave infrared reflectance spectroscopy at the Esquel gold deposit, Argentina. Economic Geology, 103(4), 865-869.
http://dx.doi.org/10.2113/gsecongeo.103.4.865
---------- CHICAGO ----------
Soechting, W., Rubinstein, N., Godeas, M. "Identification of ammonium-bearing minerals by shortwave infrared reflectance spectroscopy at the Esquel gold deposit, Argentina" . Economic Geology 103, no. 4 (2008) : 865-869.
http://dx.doi.org/10.2113/gsecongeo.103.4.865
---------- MLA ----------
Soechting, W., Rubinstein, N., Godeas, M. "Identification of ammonium-bearing minerals by shortwave infrared reflectance spectroscopy at the Esquel gold deposit, Argentina" . Economic Geology, vol. 103, no. 4, 2008, pp. 865-869.
http://dx.doi.org/10.2113/gsecongeo.103.4.865
---------- VANCOUVER ----------
Soechting, W., Rubinstein, N., Godeas, M. Identification of ammonium-bearing minerals by shortwave infrared reflectance spectroscopy at the Esquel gold deposit, Argentina. Econ. Geol. 2008;103(4):865-869.
http://dx.doi.org/10.2113/gsecongeo.103.4.865