Magmatic-dominated fluid evolution in the Jurassic Nambija gold skarn deposits (southeastern Ecuador)

Allen J, Aslund T (1998) The Wabu gold skarn, Irian Jaya, Indonesia The Gangue, Newsletter of the Mineral Deposit Division. Geol Assoc Canada 59:9–11

Arcos D, Soler A, Delgado J (1995) Fluid evolution in the Cu–Au deposit related to the Carlés Granodiorite (Asturias). Eur J Mineral 8:975–985

Arcos D (1996) Las mineralizaciones associadas a la granodiorita en el deposito de Cu-Au de Carlés (Asturias). Unpublished Ph.D. thesis, Barcelona University, Spain, 294 pp

Audetat A, Günther D (1999) Mobility and H2O loss from fluid inclusions in natural quartz crystals. Contrib Mineral Petrol 137:1–14

Baker T (2002) Emplacement depth and carbon dioxide-rich fluid inclusions in intrusion-related gold deposits. Econ Geol 97:1111–1117

Bakker RJ (1999) Adaptation of the Bowers and Helgeson (1983) equation of state to the H2O–CO2–CH4–N2–NaCl system. Chem Geol 154:225–236

Bakker RJ, Brown PE (2003) Computer modeling in fluid inclusion research. In: Samson I, Anderson A, Marshall D (eds) Fluid inclusion analysis and interpretation. Mineralogical Association of Canada short course series, vol 32. Mineralogical Association of Canada, Quebec, pp 175–212

Bodnar RJ, Burnham CW, Sterner SM (1985) Synthetic fluid inclusions in natural quartz: III. Determination of phase equilibrium properties in the system H2O–NaCl to 1000°C and 1500 bars. Geochim Cosmochim Acta 49:1861–1873

Bodnar RJ (1994) Synthetic fluid inclusions. XII. Experimental determination of the liquidus and isochores for a 40 wt.% H2O–NaCl solution. Geochim Cosmochim Acta 58:1053–1063

Bodnar RJ, Vityk MO (1994) Interpretation of microthermometric data for H2O–NaCl fluid inclusions. In: De Vivo B, Frezzotti ML (eds) Fluid inclusions in minerals. Methods and applications. Virginia Tech, Blacksburg, pp 117–130

Brooks JW, Meinert LD, Kuyper BA, Lane ML (1991) Petrology and geochemistry of the McCoy gold skarn, Lander County, NV. In: Raines GL, Lisle RE, Schafer RW, Wilkinson WH (eds) Geology and ore deposits of the Great Basin. Geol Soc Nevada, Reno, pp 419–442

Brooks JW (1994) Petrology and geochemistry of the McCoy gold skarn, Lander County, Nevada. Unpublished Ph.D. thesis, Washington State University, Pullman, Washington, 607 pp

Bowman JR (1998) Stable-isotope systematics of skarns. In: Lentz DR (ed) Mineralized intrusion related skarn systems. Mineralogical Association of Canada short course series, vol 26. Mineralogical Association of Canada, Quebec, pp 99–145

Burke EAJ (2001) Raman microspectrometry of fluid inclusions. Lithos 55:139–158

Cathelineau M (1988) Cation site occupancy in chlorites and illites as a function of temperature. Clay Miner 23:471–485

Chiaradia M, Vallance J, Fontboté L, Stein HJ, Schaltegger U, Coder J, Richards J, Villeneuve M, Gendall I (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. Miner Deposita. doi: 10.1007/s00126-008-0210-6

Diamond LW (2003) Introduction to gas-bearing aqueous fluid inclusions. In: Samson I, Anderson A, Marshall D (eds) Fluid inclusions: analysis and interpretation. Mineralogical Association of Canada short course series, vol 32. Mineralogical Association of Canada, Quebec, pp 101–159

Drummond SE, Ohmoto H (1985) Chemical evolution and mineral deposition in boiling hydrothermal systems. Econ Geol 80:126–147

Duan Z, Møller N, Weare JH (1995) Equation of state for the NaCl–H2O–CO2 system: prediction of phase equilibria and volumetric properties. Geochim Cosmochim Acta 59:2869–2882

Dubessy J, Poty B, Ramboz C (1989) Advances in C–O–H–N–S: fluid geochemistry based on micro Raman spectrometric analysis of fluid inclusions. Eur J Mineral 1:517–534

Einaudi MT, Meinert LD, Newberry RJ (1981) Skarn deposits. Econ Geol 75:317–391

Fontboté L, Vallance J, Markowski A, Chiaradia M (2004) Oxidized gold skarns in the Nambija district, Ecuador. In: Perrello J, Sillitoe R, Vidal C (eds) Andean metallogenesis: new discoveries, concepts, and updates. Society of Economic Geologists Special Publication 11. Society of Economic Geologists, Littleton, pp 341–357

Foster MD (1962) Interpretation of the composition and a classification of the chlorites. US Geol Prof Paper 414A:33p

Fournier RO (1985a) The behavior of silica in hydrothermal solutions. In: Berger BR, Bethke PM (eds) Geology and geochemistry of epithermal systems. Reviews in economic geology, vol 2. Society of Economic Geologists, Littleton, pp 45–62

Fournier RO (1985b) Carbonate transport and deposition in the epithermal environment. In: Berger BR, Bethke PM (eds) Geology and geochemistry of epithermal systems. Reviews in economic geology, vol 2. Society of Economic Geologists, Littleton, pp 63–72

Frantz JD, Popp RK, Hoering TC (1992) The compositional limits of fluid immiscibility in the system H2O–NaCl–CO2 as determined with the use of synthetic fluid inclusions in conjunction with mass spectrometry. Chem Geol 98:237–255

Gammons CH, Williams-Jones AE (1997) Chemical mobility of gold in the porphyry-epithermal environment. Econ Geol 92:45–59

Gehrig M (1980) Phasengleichgewichte und pVT-Daten ternaerer Mischungen aus Wasser, Kohlendioxid und Natriumchlorid bis 3 kbar und 550°C. Ph.D. thesis, Univ. Karlsruhe, in German

Gendall IR, Quevedo LA, Sillitoe RH, Spencer RM, Puente CO, Leon JP, Povedo RR (2000) Discovery of a Jurassic porphyry copper belt, Pangui area, southern Ecuador. SEG Newslett 43(1):8–15

Gilg HA (1996) Fluid inclusion and isotope constraints on the genesis of high-temperature carbonate-hosted Pb–Zn–Ag deposits. In: Sangster D (ed) Carbonate-hosted lead zinc deposits SEG special publication 4. SEG, Littleton, pp 501–514

Goldstein RH, Reynolds TJ (1994) Systematics of fluid inclusions in diagenetic minerals. SEPM short course no. 31. SEPM, Tulsa, p 199

Gustafson LB, Hunt JP (1975) The porphyry copper deposit at El Salvador. Chile Econ Geol 70:856–912

Hammarstrom JM (1992) Mineralogy and chemistry of gold-associated skarn from Nambija, Zamora Province, Ecuador: a reconnaissance study: advances related to US and international mineral resources. USGS, Reston, pp 107–118

Hughes RA, Pilatasig LF (2002) Cretaceous and Tertiary terrane accretion in the Cordillera Occidental of the Andes of Ecuador. Tectonophysics 345:29–48

Jaillard E, Guillier B, Bonnardot MA, Hassani R, Lapierre H, Toro J (2005) Orogenic buildup of the Ecuadorian Andes. In: Sempéré T (ed) 6th International Symposium on Andean Geodynamics (ISAG 2005, Barcelona), extended abstracts, pp 404–407

Jowett EC (1991) Fitting iron and magnesium into the hydrothermal chlorite geothermometer. In: GAC/MAC/SEG Joint Annual Meeting (Toronto), Program with Abstracts 16, p 62

Kasemann S, Meixner A, Rocholl A, Vennemann T, Schmitt A, Wiedenbeck M (2001) Boron and oxygen isotope composition of certified reference materials NIST SRM 610/612, and reference materials JB-2G and JR-2G. Geostand Newslett 25:405–416

Khaibullin IK, Borisov NM (1966) Experimental investigation of the thermal properties of aqueous and vapour solutions of sodium and potassium chlorides at phase equilibrium (in Russian). Teplofizika Vysokikh Temperatur 4:518–523

Knight CL, Bodnar RJ (1989) Synthetic fluid inclusions: IX. Critical PVTX properties of NaCl–H2O solutions. Geochim Cosmochim Acta 53:3–8

Kwak TAP, Tan TH (1981) The geochemistry of Zoning in skarn minerals at the King Island (Dolphin) Mine. Econ Geol 76:468–497

Kwak TAP (1986) Fluid inclusions in skarns (carbonate replacement deposits). J Metam Geol 4:363–384

Litherland M, Aspden JA, Jemielita RA (1994) The metamorphic belts of Ecuador. Overseas memoir 11. BGS, Keyworth, p 147

Markowski A, Vallance J, Chiaradia M, Fontboté L (2006) Mineral Zoning and Gold occurrence in the Fortuna skarn Mine, Nambija district, Ecuador. Miner Deposita 41:301–321

Martin-Izard A, Paniagua A, García-Iglesias J, Fuertes-Fuente M, Ll B, Maldonado C, Varela A (2000) The Carlés copper–gold–molybdenum skarn (Asturias, Spain): geometry, mineral associations and metasomatic evolution. J Geoch Expl 71:153–175

Matsuhisa Y, Goldsmith JR, Clayton RN (1979) Oxygen isotopic fractionation in the system quartz–albite–anorthite–water. Geochim Cosmochim Acta 43:1131–1140

McCoy D, Newberry RJ, Layer PW, Di Marchi JJ, Bakke AA, Masterman JS, Minehane DL (1997) Plutonic-related gold deposits of interior Alaska. In: Goldfarb RJ, Miller LD (eds) Ore deposits of Alaska Economic geology monograph 9. SEG, Littleton, pp 191–241

Meinert LD, Hefton KK, Mayes D, Tasiran I (1997) Geology, zonation, and fluid evolution of the Big Gossan Cu–Au skarn deposit, Ertsberg district, Irian Jaya. Econ Geol 92:509–533

Meinert LD (2000) Gold in skarns related to epizonal intrusions. In: Hagemann SG, Brown PE (eds) Gold in 2000. Reviews in Economic Geology, vol 13. SEG, Littleton, pp 347–375

Meinert LD, Hedenquist JW, Satoh H, Matsuhisa Y (2003) Formation of anhydrous and hydrous skarn in Cu–Au ore deposits by magmatic fluids. Econ Geol 98:147–156

Meinert LD, Dipple GM, Nicolescu S (2005) World skarn deposits. In: Hedenquist JW, Thompson JFH, Goldfarb RJ, Richards JP (eds) Econ Geol 100th Anniv:299–336

Oakes CS, Bodnar RJ, Simonson JM (1990) The system NaCl–CaCl2–H2O. I. The vapor-saturated ice liquidus. Geochim Cosmochim Acta 54:603–610

O’Neil JR, Clayton RN, Mayeda TK (1969) Oxygen isotope fractionation in divalent metal carbonates. J Chem Phys 51:5547–5558

Pratt WT, Duque P, Miguel P (2005) An autochthonous geological model for the eastern Andes of Ecuador. Tectonophysics 399:251–278

Prodeminca (2000) Depositos porfidicos y epi-mesotermales relacionados con intrusiones de la Cordillera del Cóndor: Evaluacion de distritos mineros del Ecuador: UCP Prodeminca Proyecto MEM BIRF 36-55 EC 5, 223 pp

Rumble DIII, Hoering TC (1994) Analysis of oxygen and sulfur isotope ratios in oxide and sulfide minerals by spot heating with a carbon dioxide laser in a fluorine atmosphere. Accounts Chem Res 27:237–241

Sharp ZD (1990) A laser-based microanalytical method for the in-situ determination of oxygen isotope ratios of silicates and oxides. Geochim Cosmochim Acta 54:1353–1357

Shepherd TJ (1981) Temperature programmable heating-freezing stage for microthermometric analysis of fluid inclusions. Econ Geol 76:1244–1247

Sheppard SMF (1986) Characterization and isotopic variations in natural waters. In: Valley JW, Taylor HP, O’Neil JR (eds) Stable isotopes in high temperature geological processes Reviews in mineralogy, vol 16. Mineralogical Society of America, Chantilly, pp 165–183

Spikings RA, Seward D, Winkler W, Ruiz GM (2000) Low temperature thermochronology of the northern Cordillera Real, Ecuador: tectonic insights from zircon and apatite fission track analysis. Tectonics 19:649–668

Spoetl C, Vennemann TW (2003) Continuous-flow IRMS analysis of carbonate minerals. Rapid Comm Mass Spec 17:1004–1006

Sterner SM, Bodnar RJ (1984) Synthetic fluid inclusions in natural quartz. I. Compositional types synthesized and applications to experimental geochemistry. Geochim Cosmochim Acta 48:2659–2668

Sterner SM, Hall DL, Bodnar RJ (1988) Synthetic fluid inclusions. V. Solubility relations in the system NaCl–KCl–H2O under vapor-saturated conditions. Geochim Cosmochim Acta 52:989–1006

Takenouchi S, Kennedy GC (1964) The binary system H2O–CO2 at high temperatures and pressures. Am J Sci 262:1055–1074

Vallance J, Markowski A, Fontboté L, Chiaradia M (2003) Mineralogical and fluid inclusion constraints on the genesis of gold-skarn deposits in the Nambija district (Ecuador). In Eliopoulos D et al. (eds). Mineral exploration and sustainable development, Millipress, vol. 1, pp 399–402

Valley JW, Kitchen N, Kohn MJ, Niendorf CR, Spicuzza MJ (1995) UWG-2, a garnet standard for oxygen isotope ratios: strategies for high precision and accuracy with laser heating. Geochim Cosmochim Acta 59:5223–5231

Velde B (1985) Clay minerals a physico-chemical explanation of their occurrence. Elsevier, Amsterdam, p 426

Vityk MO, Bodnar RJ (1995) Textural evolution of synthetic fluid inclusions in quartz during re-equilibration, with applications to tectonic reconstruction. Cont Miner Pet 121:309–323

Vityk MO, Bodnar RJ (1998) Statistical microthermometry of synthetic fluid inclusions in quartz during decompression. Cont Miner Pet 132:149–162