Epithermal gold-silver deposits of the Hauraki Goldfield, New Zealand / David A. John in Economic geology, Vol. 106 N° 6 (Septembre/Octobre 2011)  

Public ISBD [article]  inEconomic geology > Vol. 106 N° 6 (Septembre/Octobre 2011) . - pp. 915-919 Titre : Epithermal gold-silver deposits of the Hauraki Goldfield, New Zealand : an introduction Type de document : texte imprimé Auteurs : David A. John, Auteur Année de publication : 2011 Article en page(s) : pp. 915-919 Note générale : Géologie économique Langues : Anglais (eng) Mots-clés : Epithermal gold-silver deposits New Zeland Index. décimale : 553 Géologie économique. Minérographie. Minéraux. Formation et gisements de minerais Résumé : The five papers that follow describe diverse aspects of epithermal gold-silver deposits and genetically related hydrothermal systems in the Hauraki goldfield on the Coromandel peninsula of the North Island of New Zealand (Fig. 1). The Hauraki goldfield contains more than 50 Miocene and Pliocene epithermal Au-Ag deposits and several porphyry Cu-Au-Mo occurrences in a 200-km-long by 40-km-wide north-south–trending belt (Fig. 1C; Christie et al., 2007). Production from these deposits between 1862 and 2009 totaled approx. 335,000 kg (10.8 Moz) of Au and 1.6 million kg (51.4 Moz) of Ag (Mauk et al., 2011). The epithermal deposits are related to subaerial hydrothermal systems hosted in rocks of the early Miocene to late Pliocene (~18–1.9 Ma) Coromandel volcanic zone (Skinner, 1986). DEWEY : 553 ISSN : 0361-0128 En ligne : http://econgeol.geoscienceworld.org/content/106/6/915.extract [article] Epithermal gold-silver deposits of the Hauraki Goldfield, New Zealand : an introduction [texte imprimé] / David A. John, Auteur . - 2011 . - pp. 915-919. Géologie économique Langues : Anglais (eng) in Economic geology > Vol. 106 N° 6 (Septembre/Octobre 2011) . - pp. 915-919 Mots-clés : Epithermal gold-silver deposits New Zeland Index. décimale : 553 Géologie économique. Minérographie. Minéraux. Formation et gisements de minerais Résumé : The five papers that follow describe diverse aspects of epithermal gold-silver deposits and genetically related hydrothermal systems in the Hauraki goldfield on the Coromandel peninsula of the North Island of New Zealand (Fig. 1). The Hauraki goldfield contains more than 50 Miocene and Pliocene epithermal Au-Ag deposits and several porphyry Cu-Au-Mo occurrences in a 200-km-long by 40-km-wide north-south–trending belt (Fig. 1C; Christie et al., 2007). Production from these deposits between 1862 and 2009 totaled approx. 335,000 kg (10.8 Moz) of Au and 1.6 million kg (51.4 Moz) of Ag (Mauk et al., 2011). The epithermal deposits are related to subaerial hydrothermal systems hosted in rocks of the early Miocene to late Pliocene (~18–1.9 Ma) Coromandel volcanic zone (Skinner, 1986). DEWEY : 553 ISSN : 0361-0128 En ligne : http://econgeol.geoscienceworld.org/content/106/6/915.extract

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