Grafitt, norske forekomster, bruksområder og potensiale

Grafitt,
norske forekomster,
bruksområder og potensiale
NGU dagen 2013
Håvard Gautneb
The global graphite market
Natural and
synthetic
graphite have
different
applications and
the markets and
do not compete
Natural graphite, 3 different types
Amorphous graphite
50% of world output
Low grade metamorphic
and contact
metamorphic formation
from coal
Flake graphite
49% of world output
High grade metamorphic
formation from organic
rich sediments
Vein graphite
1% of world output
2CO = C + CO2
Why graphite
BGS: Graphite, one of the minerals most likely to be in
short supply.
US Dept. of Homeland Security: USA will be hurt if
terrorist disable Chinese graphite production.
1 million new EV’s =
5 new graphite mines
(30.000 t/a production)
(15 mines of the size of Skaland)
Graphene
Can be produced
from flake graphite,
(presently in lab scale
only)
Some application of graphene
Financial Times 27. jan 2013
Teknisk ukeblad 29 jan 2013
Graphite in Norway
Graphite occurences
Mineral deposits
in NGU databases:
•Metal deposits: 4500
•Industrial minerals: 2200
•Graphite deposits: 74
This includes active and abandoned
mines, showings and exploration
sites.
Check database at:
www.prospecting.no
Senja
Lofoten-Vesterålen
Rana area
Mine sites
Former and present
Senja – Southern Troms area
Selected deposits with % carbon
Trælen
30% C
Gjeitskaret
Skaland
28% C
Bukkemoen
22% C
Vardfjellet
15% C
10% C
Spansdalen
30% C
Trælen Senja
Source: Skaland graphite
All Norwegian graphite deposits show complex multi phase folding and
deformation (Bukkemoen Senja)
Graphite schists
From Henderson & Kendrick 2003: NGU report no. 2003.0011
Free download at www.ngu.no
Lofoten-Vesterålen
Selected deposits and grades (%C)
Skogsøy
15% C
Sommarland
15% C
Golia
Haugsneset
25% C
Koven
Hornvann
20% C
Morfjord
18% C
10% C
25% C
Rana area
Nord-Værnes
s C
15%
Rendalsvik
15% C
Midstraumen
11% C
(amorphous)
Trælen graphite mine
Some are
abandoned mines,
other are ore bodies
under thin cover
Golia mine
Morfjord mine
Jennestad area
The surveys future work:
Airborne geophysics
Under explored areas! New opportunities?
Vegårdshei area southern Norway
Vegår-Søndeled area (50
km) large number of bodies
with graphite bearing
rocks
Graphite schists
Thank you for your
attention
and thanks to :
•Matteo Bruna, University of Cambridge
•Simon Moores, Industrial Minerals, London
•Stephen Riddle, Asbury Carbons, New Jersey
•Trond Abelsen, Skaland Graphite, Skaland
For permission to use illustrations