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	THE ORE DATABASE
	Deposit Area 1219 - 019
	(Last updated 12.nov.2024)

Importance

Public:

Not Assessed (reg. 18.02.2015)

Economical:

Not classified/evaluated

Products

	Element/product	Crude ore grade or quality
	CU	3.2 %

Operations

	From - To	Activity	Comments
	1882 - 1884	Regular production	Company/Institution :Societe des mines & usines de Vigsnæs

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)

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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.:

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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

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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

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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

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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

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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

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Sample No.	Tl*
Alsvåg 04	0
ALVSVÅG 03	-0

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The fact sheet was created on 16.01.2025

Questions or comments regarding the fact sheet can be emailed to: ressursdatabaser@ngu.no

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