 | Chiaradia, Massimo, Vallance, Jean, FontbotĂ©, Lluis, Stein, Holly, Schaltegger, Urs, Coder, Joshua, Richards, Jeremy, Villeneuve, Mike, Gendall, Ian (2009) U–Pb, Re–Os, and 40Ar/39Ar geochronology of the Nambija Au-skarn and Pangui porphyry Cu deposits, Ecuador: implications for the Jurassic metallogenic belt of the Northern Andes. Mineralium Deposita, 44 (4) 371-387 doi:10.1007/s00126-008-0210-6 | Journal (article/letter/editorial) | | geochronology of the Nambija Au-skarn and Pangui porphyry Cu deposits, Ecuador: implications for the...from the Nambija and Pangui districts of the Subandean zone, southeastern Ecuador. Nambija has been one...one of the main gold-producing centers of Ecuador since the 1980s due to exceptionally high-grade ores...discovered porphyry Cu–Mo district. The geology of the Subandean zone in southeastern Ecuador is dominated by the...Jurassic Zamora batholith, which intrudes Triassic volca- nosedimentary rocks. The Zamora batholith |  | Vallance, Jean, FontbotĂ©, LluĂs, Chiaradia, Massimo, Markowski, Agnès, Schmidt, Susanne, Vennemann, Torsten (2009) Magmatic-dominated fluid evolution in the Jurassic Nambija gold skarn deposits (southeastern Ecuador) Mineralium Deposita, 44 (4) 389-413 doi:10.1007/s00126-009-0238-2 | Journal (article/letter/editorial) | | evolution in the Jurassic Nambija gold skarn deposits (southeastern Ecuador) Jean Vallance & LluĂs FontbotĂ©... Abstract The Jurassic (approximately 145 Ma) Nambija oxidized gold skarns are hosted by the Triassic...Piuntza unit in the sub-Andean zone of southeastern Ecuador. The skarns consist dominantly of granditic garnet...late veins and interpreted as basinal brines. Nambija represents a deep equivalent of the oxidized gold...Aqueous-carbonic fluids . Oxygen isotope . Chlorite . Nambija . Ecuador Introduction Skarns are an important source |  | Markowski, Agnès, Vallance, Jean, Chiaradia, Massimo, FontbotĂ©, Lluìs (2006) Mineral zoning and gold occurrence in the Fortuna skarn mine, Nambija district, Ecuador. Mineralium Deposita, 41 (4) 301-321 doi:10.1007/s00126-006-0062-x | Journal (article/letter/editorial) | | gold occurrence in the Fortuna skarn mine, Nambija district, Ecuador Received: 24 February 2005 / Accepted:...gold skarn deposit is located in the northern part of the Nambija gold district, southern Ecuador. It has...which are named from north to south: Cuerpo 3, Mine 1, Mine 2, and Southern Sector. Massive skarn bodies...intrusion which crops out below the skarn bodies in Mine 2 and the Southern Sector. Endoskarn alteration...zone is centered on two 060° trending faults in Mine 2, where the highest gold grades (5–10 g/t) were |
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