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mlevy

Nambija gold skarns, Portovelo Epithermal Gold deposits,
and the La Plata gold rich VHMS, Ecuador.

L. Fontboté 1, M. Chiaradia 2, A. Markowski 1, R. Spencer 3, J. Vallance

1 Earth Sciences, University of Geneva, Switzerland
2 School of Earth Sciences, University of Leeds, United Kingdom
3 IAMGOLD, Quito, Ecuador

Field trip guide for the
"Curso de Metalogenia UNESCO-SEG, Universidad Central, Quito, Ecuador, 2-14 June, 2003"

unesco

kfpe

Con el auspicio de

UNESCO-Montevideo y Society of Economic Geologists (SEG)
y
Agencia Suiza Para el Desarrollo y la Cooperación (COSUDE) Comisión Suiza para el Partenariado Científico
con los Países en Desarrollo (KFPE)

SEG

cosude


Contents

Gold skarns at the Nambija District, Ecuador

- Mineralogical and fluid inclusion constraints on the genesis of gold-skarn deposits in the Nambija district (Ecuador)
- Visit of the Campanillas Mine
- The Fortuna gold skarn, Nambija District (Cordillera Real, Ecuador)
- Visit of the Fortuna Mine

Visit of the Portovelo epithermal gold deposits

- Visit of porphyry and epithermal environments at the Portovelo-Zaruma Mining Camp

The Au-rich VHMS of La Plata

Radiogenic lead signatures in Au-rich VHMS ores and associated volcanic rocks of the Early Tertiary Macuchi island arc (Western Cordillera of Ecuador)

Geological setting, mineralogy and geochemistry of the Early Tertiary Au-rich volcanic-associated massive sulphide deposit of La Plata (Western Cordillera, Ecuador) (644 Kb pdf document to download)

- Visit of the La Plata gold rich VHMS deposit, Ecuador

General information

Program and itinerary (Fig. 1):

Saturday 8: Quito-Loja (flight)-Zamora-Nambija, night in San Carlos (Nambija)
Monday 9: Nambija (Campanillas - Nambija), night in San Carlos (Nambija)
Tuesday 10: Nambija (Fortuna), night in Loja
Wednesday 11: Portovelo, night in Zaruma
Thursday 12: Portovelo, night in Machala
Friday 13: Travelling to Machala to the north, night near La Plata
Saturday 14 Visit of the La Plata mine and return to Quito at the end of the day.

Field trip geological guides:

Nambija: L. Fontboté, A. Markowski, J. Vallance, Geneva Univ. and M. Chiaradia, Leeds Univ.
Portovelo: Richard Spencer and IAMGOLD
La Plata: M. Chiaradia, Leeds Univ.

ecuador

Fig. 1: Geotectonic map of Ecuador with location of the field trip stops.
Geological sketch from Litherland et al. (1994)

[Quito 2003] [Mineral Resources and Geofluids]

mlevy

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