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Exploration and Mining in Greenland, Fact sheet 2, 2002 - Geus

Exploration and Mining in Greenland, Fact sheet 2, 2002 - Geus

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Greenl<strong>and</strong> M<strong>in</strong>eral Resources<br />

Ivittuut 1898<br />

Ivittuut 1986<br />

The total production went on from underground<br />

levels down to 100 m. There were high<br />

expectations to the copper m<strong>in</strong><strong>in</strong>g, <strong>and</strong> a smelter<br />

was <strong>in</strong>stalled. Capital <strong>and</strong> man power were<br />

designed as half size of the Ivittuut m<strong>in</strong>e.<br />

Amount <strong>and</strong> grade were too limited to be economic.<br />

Smelt<strong>in</strong>g operations failed <strong>and</strong> the m<strong>in</strong>e<br />

was ab<strong>and</strong>oned after 10 years of operation.<br />

Amitsoq Graphite M<strong>in</strong>e 1915–1924<br />

Dur<strong>in</strong>g the lifetime of the m<strong>in</strong>e 6000 t of ore with<br />

21% graphite were m<strong>in</strong>ed underground <strong>and</strong> <strong>in</strong><br />

open pit. The m<strong>in</strong>e was ab<strong>and</strong>oned after difficulties<br />

<strong>in</strong> separat<strong>in</strong>g the graphite flakes.<br />

The deposit still has a calculated resource of<br />

250,000 t of ore which averages 20% graphite.<br />

The company beh<strong>in</strong>d the Josva M<strong>in</strong>e established<br />

the m<strong>in</strong>e <strong>and</strong> the equipment <strong>and</strong> build<strong>in</strong>gs<br />

from Josva were moved to Amitsoq. The graphite<br />

m<strong>in</strong>e was partly f<strong>in</strong>anced by <strong>in</strong>ternational capital<br />

for the first time <strong>in</strong> Greenl<strong>and</strong> m<strong>in</strong><strong>in</strong>g history.<br />

Greenl<strong>and</strong> Resources A/S<br />

Tuapannguit 38<br />

P.O. Box 821<br />

DK-3900 Nuuk<br />

Greenl<strong>and</strong><br />

Tel: (+299) 32 79 13<br />

Fax.: (+299) 32 79 14<br />

E-mail: gras@greennet.gl<br />

Internet: www.resources.gl<br />

Bureau of M<strong>in</strong>erals <strong>and</strong> Petroleum<br />

(BMP)<br />

Government of Greenl<strong>and</strong><br />

P.O. Box 930<br />

DK-3900 Nuuk<br />

<strong>in</strong> the production of metallic alum<strong>in</strong>ium – the use<br />

which made cryolite <strong>in</strong>dispensable to modern<br />

<strong>in</strong>dustry – <strong>and</strong> the application of alum<strong>in</strong>ium.<br />

Ivittuut was the only cryolite m<strong>in</strong>e <strong>in</strong> operation<br />

world wide so far. After 1987 the operations<br />

turned out to be uneconomical <strong>and</strong> the activity<br />

was term<strong>in</strong>ated. Today cryolite is made artificially.<br />

Greenl<strong>and</strong><br />

Tel: (+299) 34 68 00<br />

Fax.: (+299) 32 43 02<br />

E-mail: bmp@gh.gl<br />

Internet: www.bmp.gl<br />

<strong>M<strong>in</strong><strong>in</strong>g</strong> for copper 1904–1915<br />

Kvanefjeld 1958<br />

2200 t of ore was m<strong>in</strong>ed <strong>in</strong> the Josva M<strong>in</strong>e <strong>in</strong> this<br />

period – with 3.5% copper <strong>in</strong> average. Byproducts<br />

from the production were 0.5 kg gold <strong>and</strong> 50 kg<br />

silver.<br />

<strong>M<strong>in</strong><strong>in</strong>g</strong> uranium over the period<br />

1958–1980<br />

20,000 t ore with 365 g/t U <strong>in</strong> average was m<strong>in</strong>ed<br />

on a pilot scale <strong>in</strong> several runs. The m<strong>in</strong><strong>in</strong>g was<br />

carried out underground from a 1000 m drift; calculated<br />

reserves are up to 56 million t. Further<br />

activity ceased after the early 1980s.<br />

Geological Survey of Denmark<br />

<strong>and</strong> Greenl<strong>and</strong> (GEUS)<br />

Øster Voldgade 10<br />

DK-1350 Copenhagen K<br />

Denmark<br />

Tel: (+45) 38 14 20 00<br />

Fax.: (+45) 38 14 20 50<br />

Key references<br />

Bondam, J. 1992: Graphite occurrences <strong>in</strong> Greenl<strong>and</strong> – A review.<br />

E-mail: geus@geus.dk<br />

Internet: www.geus.dk<br />

Open File Series Grønl<strong>and</strong>s Geologiske Undersøgelse 92/6,<br />

32 pp.<br />

Pauly, H. & Bailey, J.C. 1999: Genesis <strong>and</strong> evolution of the Ivigtut<br />

Josva 1911<br />

cryolite deposit, SW Greenl<strong>and</strong>. Meddelelser om Grønl<strong>and</strong>,<br />

Geoscience 37, 60 pp.<br />

Petersen, O.V. & Secher, K. 1993: The M<strong>in</strong>erals of Greenl<strong>and</strong>,<br />

The M<strong>in</strong>eralogical Record 24,2, Arizona, U.S.A. 67 pp.<br />

Secher, K. & Burchardt, J. 2000: Modern m<strong>in</strong><strong>in</strong>g technology 100<br />

years ago. In: This is Greenl<strong>and</strong> 2000–2001 (Danker, P. ed.)<br />

Amitsoq 1920<br />

Government of Greenl<strong>and</strong> <strong>and</strong> Royal Danish M<strong>in</strong>istry of<br />

Foreign Affairs, 166–161.<br />

Sørensen, H. (ed.) 2001: The Ilímaussaq alkal<strong>in</strong>e complex, South<br />

Greenl<strong>and</strong>: status of m<strong>in</strong>eralogical research with new results.<br />

Geology of Greenl<strong>and</strong> Survey Bullet<strong>in</strong> 190, 167 pp.<br />

Author: K.Secher<br />

Editor: K.Secher<br />

Layout: GEUS, Grafisk<br />

Pr<strong>in</strong>ters: FROM & CO<br />

© GEUS <strong>2002</strong>

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