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THE ORE DATABASE
Deposit Area 1219 - 019
(Last updated 28.aug.2023)

Name of Deposit Area : Alsvåg
(Object Id : 1219,019,00,00)
Location
County : Hordaland (12) Municipality : Bømlo (1219)
Map 1:50000: Fitjar (1114-1) Map 1:250000: Haugesund
Marking point: (Unavailable)
Commodity
Main Type: Base metals (Cu,Zn,Pb,Fe sulphides, As,Sb,Bi,Sn) Sub Type: Copper
Element(s): Kis Cu
Production
Activity: Mining Reserves:
Prod. method: Open pit and underground mining Production:
Prod. status: Disused, closed Volume of dump:

Importance
Public: Not Assessed (reg. 18.02.2015)
Economical: Not classified/evaluated

Products
Element/product Crude ore grade or quality
AU 29.8 ppm
CU .2 %

Operations
From - To Activity Comments
1882 - 1884 Regular production

Mineralization
Era: Period:
Dating: 535 (-46\+46) million year Method: Rb/Sr
Genesis: Volcex Form: Layer
Main texture: Banded Min. distribution: Semi-massive (20-50 % ore minerals)
Main grain size: Medium grained (1-3 mm) Main alteration: Chloritisation
Strike/Dip: 130 / 50 Direction:
Plunge:
Stratigraphic classification of host rock
Era: Period:
Province: Caledonides
Geotec.unit: Hardangerfjord Nappe Complex
Tectonic complex:
Igneous complex: Lykling Ophiolite Complex
Group: Formation:

Mineralogy
Relationship Mineral Amount
Gangue mineral Quartz Major mineral (>10%)
Ore mineral Pyrite Subordinate mineral (1-10%)
Ore mineral Pyrrhotite Subordinate mineral (1-10%)
Ore mineral Chalcopyrite Subordinate mineral (1-10%)

Lithology:
Relationship Rock Origin
Unknown Gabbro Intrusive
Original rock :Gabbro
535 (-46\+46) mill. years;..Method:Rb/Sr
Metamorphic facies :Greenschist

Structures
Location: Type: Orientation(360 gr.): Relation to min.:
Unknown Shear plane Strike/Dip :130 / 50 Syn-mineralisation ;...Effect :Controls

Fieldsamples
Sample No. Sample type Miscellanrous
ALVSVÅG 03 Bedrock
Sampler :J.S. Sandstad
Comment :Chalcopyrite veinlets/lenses in fine grained silisified greenstone/dolerite
No. of registrated element analyses = 1
NB! All analyse values are shown at the end of the printout.:

Name of Locality : Alsvåg skjerp
(Object Id : 1219,019,01,00)
Location
County : Hordaland (12) Municipality : Bømlo (1219)
Map 1:50000: Fitjar (1114-1) Map 1:250000: Haugesund
Marking point: Longitude: 5.1642600 Latitude: 59.7691660
EU89-UTM Zone 32 (Coordinates IS confirmed)
X-coord: 284641 m. Y-coord: 6631936 m.
Commodity
Main Type: Base metals (Cu,Zn,Pb,Fe sulphides, As,Sb,Bi,Sn) Sub Type: Copper
Element(s): Kis Cu
Production
Activity: Pitting Reserves:
Prod. method: Production:
Prod. status: Volume of dump:


Fieldsamples
Sample No. Sample type Miscellanrous
Alsvåg 04 Dump
Sampler :H.K. Paulsen
Comment :Veinlets with chalcopyrite and pyrrhotite in silisified chloritic greenstone
No. of registrated element analyses = 1
NB! All analyse values are shown at the end of the printout.:

Analyse Results
from
Deposit Area 1219 - 019 Alsvåg

Element analyses
( *=parts pr. million, #=parts pr.billion, Negative values means below detection limit value.)
Sample No. Sample Type Cu* Zn* Pb* Co* Ni* Ag* Au#
Alsvåg 04 Dump 8200 148 2 55 96 1.4 19.0
ALVSVÅG 03 Bedrock 8290 118 1 86 27 .6 14.0
------------------
Sample No. As* Cd* Ba* Mo* Sn* Sb* Bi* Se* Ga*
Alsvåg 04 4 .3 -10 0.92 0 0 1 42.00 14.55
ALVSVÅG 03 2 .2 10 0.79 0 0 0 17.00 21.30
------------------
Sample No. Ge* In* S% V* Cr* Mn* Fe% Th* U*
Alsvåg 04 0.23 0.19 7.08 147 521 1660 21.80 0.08 -0.10
ALVSVÅG 03 0.12 0.11 2.01 638 80 1900 15.90 0.05 -0.10
------------------
Sample No. W* Rb* Sr* Y* Zr* Nb* Ta* Cs* La*
Alsvåg 04 0 1.5 22.2 5.2 3 0.20 -0.05 0.32 0.50
ALVSVÅG 03 2 1.7 118.0 13.3 5 0.50 0.05 0.41 1.20
------------------
Sample No. Ce* Li* Be* P* Sc* Ti* Te* Hf* Re*
Alsvåg 04 1.29 11 -0 150 40.00 2080 1.10 0.10 0
ALVSVÅG 03 3.87 18 0 180 54.00 12900 0.66 0.40 0
------------------
Sample No. Tl*
Alsvåg 04 0
ALVSVÅG 03 -0

The fact sheet was created on 19.05.2024
Questions or comments regarding the fact sheet can be emailed to:
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