The geological setting of the Hamn Nickel Deposit, Senja, Troms

NGU-RAPPORT
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2009.035
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Forfattere
Boyd, R.
Often, M.
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Utgivelsesår
2009
Publikasjonstype
Utgivelsesår
2009
ISSN
0800-3416
Prosjektnr
314500
Summary
The Hamn gabbro on Senja is an arcuate body extending from Hamn in the N to Gryllefjordbotn in the S, a distance of just under 10 km. Its average width is ca. 2 km. Its age is 1800±3 Ma, based on U-Pb dating of zircon. The Ni mineralization at the shore at Hamn was mined from 1872-1886, yielding 105,000 t of ore: c. 1000t of nickel and cobalt and 500 t of copper were produced from ore with an average grade of 0.9%Ni. The main ore lens at Hamn is c. 80 m long and 15 m wide at the surface, plunging and wedging out downwards towards the ESE. This report is based on data provided by Store Norske Gull - a report by Makkonen (2007) and the results from six hoies drilled in 2008 -and on data from NGU's databases, as well as a limited amount of fieldwork.
Kommune
SENJA
Fylke
TROMS OG FINNMARK
Tilgjengelig
NGU-biblioteket
Prosjekt
Ni-forekomster