GEUS - brgm

Arctic Test site: Mestersvig
Tapani Tukiainen
Geological Survey of Denmark and Greenland (GEUS)
1st MINEO Workshop, Vienna, Oct. 2001
Greenland
Mestersvig
Ittorqortoormiut
(Scoresbysund)
1st MINEO Workshop, Vienna, Oct. 2001
Mestersvig Outline of Geology
1st MINEO Workshop, Vienna, Oct. 2001
Mestersvig Sulphide occurrences
‘Mestersvig
Graben’
1st MINEO Workshop, Vienna, Oct. 2001
Blyklippen
Pb-Zn Ore
Sortebjerg
Tailing
Waste
rock
Pb-Zn Ore
1st MINEO Workshop, Vienna, Oct. 2001
Mestersvig
Arctic Site in Greenland
1st MINEO Workshop, Vienna, Oct. 2001
Mestersvig Airfield
1st MINEO Workshop, Vienna, Oct. 2001
Blyklippen seen from northeast
Open pit
Upper mine entrance
Lower mine entrance
Waste rock
Tailing
Mine village
1st MINEO Workshop, Vienna, Oct. 2001
Road to Nyhavn & airport
Blyklippen Mine
Annual production figures 1955- 1962
Period (1/10-30/9)
Tonnage
Lead (%)
Zinc (%)
1955 – 1956
45 000
8.2
10.5
1956 – 1957
87 400
8.5
10.7
1957 – 1958
90 200
10.0
8.0
1958 – 1959
92 500
12.0
10.0
1959 – 1960
86 200
8.0
12.0
1960 – 1961
101 500
10.7
8.7
1961 – 1962
41 800
3.8
10.3
Concentrate production:
58 500 tons Pb-concentrate (82.7 % Pb, 115 ppm Ag)
74 600 tons Zn-concentrate (63.7 % Zn)
Tailing 411.600 t
1st MINEO Workshop, Vienna, Oct. 2001
Blyklippen Concentration Plant
Flotation reagents
LEAD CIRCUIT
ZINC CIRCUIT
Re ag e nt
kg/ton
Point of additio n
Kg/ton
Point if additio n
S oda a s h
2.94
Cla s s ifie r
-
-
Lime , s la ke d
-
-
1.5
1.5
S odium s ya nide
0.05
Rod mill
-
-
Z-11-xa ntha te
0.07
Cla s s ifie r, ce lls
0.1
Agita tor, ce lls
Coppe r s ulpha te
-
-
0.5
Agita tor
P ine oil, Ya rmour F
0.08
Cla s s ifie r, ce lls
-
-
Dowfroth 250
-
-
0.04
Agita tor, ce lls
1st MINEO Workshop, Vienna, Oct. 2001
Hyperspectral data
1st MINEO Workshop, Vienna, Oct. 2001
Rock-type mapping from image
spectra
• Spectral angle mapper algorithm
• 450 - 2500 nm range
Mestersvig, Greenland
1st MINEO Workshop, Vienna, Oct. 2001
Contamination mapping
alluvium
River
contamination
Tailings
Vegetation
contaminated by
tailings dust
1st MINEO Workshop, Vienna, Oct. 2001
Waste
dumps