Fact Sheet for <b>Occurence 4617

					Norsk versjon
	THE ORE DATABASE
	Occurence 4617 - 037 Valaheien
	(Object Id: 4789) (Last updated: 13.03.2024)

Location

County:

Vestland

Municipality:

Kvinnherad (4617)

Map 1:50000:

Varaldsøy (1215-2)

Map 1:250000:

Odda

Coordinate system:

EU89-UTM Zone 32

East:

334429 m.

North:

6671469 m.

Longitude:

6.0177250

Latitude:

60.1465400

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Resource

	Resource Type:	Base metals (Cu,Zn,Pb,Fe sulphides, As,Sb,Bi,Sn)	Resource Subtype:	Sulphides
			Element(s):	Kis Cu

Importance

Raw material meaning:

Little Importance (reg. 26.05.2015)

Resources and production

	Activity:	Mining	Reserves:	314 thousand tons
	Operating method:	Open pit and underground mining	Historical production:	170 thousand tons

Products

Element/product Crude ore grade or quality Reg. date

Cu 0,37 % 13.03.2024

S 43,7 % 13.03.2024

Operations

From - To Activity Comments

1867 - 1888 Regular production Company/Institution :Engelske interesser

1909 - 1917 Test mining

Mineralization

Era: Paleozoic Period: Ordovician

Genesis: Volcex Form: Layer

Main texture: Banded Min. distribution: Massive (>50 % ore minerals)

Main grain size: Very unevenly grained Main alteration:

Strike/Dip: 80 / 68 Direction:

Plunge:

Stratigraphic classification of host rock

Era: Paleozoic Period: Ordovician

Province: Caledonides

Geotec.unit: Hardangerfjord Nappe Complex

Tectonic complex: Varaldsøy Complex

Igneous complex:

Group: Formation:

Mineralogy

Relationship Mineral Amount

Gangue mineral Quartz Major mineral (>10%)

Ore mineral Pyrite Major mineral (>10%)

Ore mineral Sphalerite Subordinate mineral (1-10%)

Ore mineral Magnetite Subordinate mineral (1-10%)

Ore mineral Chalcopyrite Accessory mineral (<1%)

Lithology:

Relationship Rock Origin

Host rock Greenstone Extrusive
Original rock :Basalt

Metamorphic facies :Greenschist

Structures

Location: Type: Orientation(360 gr.): Relation to min.:

Host rock Primary layering Strike/Dip :80 / 68 Syn-mineralisation ;...Effect :Controls

Host rock Schistosity Strike/Dip :80 / 68 Post-mineralisation ;...Effect :Modifies

Information(s) in free text format

Free text

Valaheien deposit is the largest VMS deposit on Varaldsøy and produced 0.17 mill.t. of ore with 43,7 % S and 0.4 % Cu in the period 1867-1917, mainly 1867-1888. The reserves are in the order of 314 000 t. The deposit is situated along the contact between metabasalt or tuff and minor bodies of feldspar porphyric rhyodacite. The ore body is a ruler with a thickness of 3-5 m and width of 200 m, and it dips 41 degrees. It is a fine-grained pyritic banded ore with minor amounts of chalcopyrite and magnetite. Main gangue is quartz. Average grades of the mined ore are 43.7 % S, 40.7 % Fe, 0.4 % Cu, 0.1 % Zn, 0.01 % As og 0.003 % Se.

Photo(s) from the Deposit area:

Photo no. 1 showing Grunnstollen (Nivå 3)"

Photo no. 2 showing Dagstrosse"

Photo no. 3 showing Dagstrosse"

Photo no. 4 showing Malmstuff"

Bibliography:

From NGU's Reference Archive:

Bjørlykke, Harald , 1957

Varaldsøy grube. Valaheien, profilskisse 1:1 000

;Norges geologiske undersøkelse;KART;Bergarkivet; No.K 2397

Bjørlykke, H. , 1957

Rapport over Varaldsøy Gruber og malmstrøket Varaldsøy - Nygruben - Hisdalen.

;Norges geologiske undersøkelse;FAGRAPPORT;Bergarkivet; No.BA 6308;8+kart pages

Abstract:

Rapporten oppsummerer geologiske forhold, geologiske resultater og malmberegninger. Feltet omtales som forholdsvis lovende m.h.p. drift i liten skala. Forekomstnr. 20082, 20287 og 20290. Forekomstens navn og koordinater: Nygruva 32 3330 66708, Varaldsøy, Hisdalen 32 3309 66699. Valaheia 32 3345 66717.

Foslie, Steinar; Dietrichson, Brynjulf , 1955

Kisdistriktet Varaldsøy-Ølve i Hardanger og bergverksdriftens historie.

;Norges geologiske undersøkelse;TIDSSKRIFTARTIKKEL;NGU; No.147;1-106 pages

Abstract:

When Steinar Foslie suddenly passed away in november 1951, he had finished the geological map here presented: "Kisdistriktet Varaldsøy-Ølve i Hardanger", based on field-work during 1942-49. Furthermore his M.S. contained a thorough petrological description of the rocks (p. 1f.) and the history of the copper-mining in the Ølve-district "Christiansgaves (Lilledale) kobberverk" from the two periods 1642-73 and 1759-85, holding a lot of items based on the study of records (p. 55 f.). These M.S. are printed unaltered, introduced by the author's own preface. The paper as a whole must be looked on as a basic draft only: An obviously planned section treating the ore deposits and their mineralogy has not been worked out, yet the facts presented may throw light upon general problems connected with the pyrite-deposits of Norway. As appears from the map the predominant rock in the pyrite-district is greenstone, more or less schistose. The term "greenstone" is here used for basic lavas and tuffs only, while the designation "the greenstone formation" is used by Foslie in the same sense as for the widely extended pyrite-bearing group in the Trondheim-district.

Fieldsamples

Sample No. Sample type Miscellanrous

HO0100.01 Bedrock

Sampler: Wulff, P./...Stored: Løkken

Comment: Massiv grovk. py-malm med 5 mm store korn. 10 % kvarts.

No. of registrated element analyses = 1

HO0100.02 Bedrock

Sampler: Wulff, P./...Stored: Løkken

Comment: Kvarts, karbonat og skifer med fragm. av ytterst fink. py.

No. of registrated element analyses = 1

HO0100.03 Bedrock

Sampler: Wulff, P./...Stored: Løkken

Comment: Py- og mt-malm med 10 % kvarts.

No. of registrated element analyses = 1

HO0100.04 Bedrock

Sampler: Wulff, P./...Stored: Løkken

Comment: Fink. py-malm med 30 % kvarts.

No. of registrated element analyses = 1

HO0100.05 Bedrock

Sampler: Wulff, P./...Stored: Løkken

Comment: Svakt lagdelt py-kvartsmalm med enkelte skiferlag.

No. of registrated element analyses = 1

Valaheien 01 Dump

Comment: Banded pyrite-sphalerite with lenses of magnetite, minor chalcopyrite

No. of registrated element analyses = 1

Valaheien 02 Bedrock

Sampler: J.S. Sandstad

Comment: Semi-massive pyrite-magnetite in quartz matrix

No. of registrated element analyses = 1

Valaheien 03 Dump

Comment: Banded pyrite with lenses of magnetite, minor chalcopyrite

No. of registrated element analyses = 1

Valaheien 04 Dump

Sampler: J.S. Sandstad

Comment: Pyrite-sphalerite-chalcopyrite band/dissemination in fine grained chlorite matrix

No. of registrated element analyses = 1

NB! All analyse values are shown at the end of the printout.:

Name of Locality: Pit

(Object Id: 32794 37,01,00)

Location

County: Vestland Municipality: Kvinnherad (4617)

Map 1:50000: Varaldsøy (1215-2) Map 1:250000: Odda

Coordinate system: EU89-UTM Zone 32

East: 334557 m. North: 6671540 m.

Longitude: 6.0199780 Latitude: 60.1472230

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Resource

Resource Type: Base metals (Cu,Zn,Pb,Fe sulphides, As,Sb,Bi,Sn) Resource Subtype: Zinc

Element(s): Kis Zn Cu

Name of Locality: Pit

(Object Id: 32795 37,02,00)

Location

County: Vestland Municipality: Kvinnherad (4617)

Map 1:50000: Varaldsøy (1215-2) Map 1:250000: Odda

Coordinate system: EU89-UTM Zone 32

East: 334432 m. North: 6671472 m.

Longitude: 6.0177680 Latitude: 60.1465620

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Resource

Resource Type: Base metals (Cu,Zn,Pb,Fe sulphides, As,Sb,Bi,Sn) Resource Subtype: Zinc

Element(s): Kis Zn Cu

Name of Locality: Trench

(Object Id: 32796 37,03,00)

Location

County: Vestland Municipality: Kvinnherad (4617)

Map 1:50000: Varaldsøy (1215-2) Map 1:250000: Odda

Coordinate system: EU89-UTM Zone 32

East: 334424 m. North: 6671466 m.

Longitude: 6.0176290 Latitude: 60.1465050

Show on map

Resource

Resource Type: Base metals (Cu,Zn,Pb,Fe sulphides, As,Sb,Bi,Sn) Resource Subtype: Zinc

Element(s): Kis Zn Cu

Name of Locality: Trench

(Object Id: 32797 37,04,00)

Location

County: Vestland Municipality: Kvinnherad (4617)

Map 1:50000: Varaldsøy (1215-2) Map 1:250000: Odda

Coordinate system: EU89-UTM Zone 32

East: 334409 m. North: 6671457 m.

Longitude: 6.0173830 Latitude: 60.1464270

Show on map

Resource

Resource Type: Base metals (Cu,Zn,Pb,Fe sulphides, As,Sb,Bi,Sn) Resource Subtype: Zinc

Element(s): Kis Zn Cu

Name of Locality: Pit

(Object Id: 32798 37,05,00)

Location

County: Vestland Municipality: Kvinnherad (4617)

Map 1:50000: Varaldsøy (1215-2) Map 1:250000: Odda

Coordinate system: EU89-UTM Zone 32

East: 334373 m. North: 6671434 m.

Longitude: 6.0167550 Latitude: 60.1461980

Show on map

Resource

Resource Type: Base metals (Cu,Zn,Pb,Fe sulphides, As,Sb,Bi,Sn) Resource Subtype: Zinc

Element(s): Kis Zn Cu

Analyse Results

from

Deposit Area 4617 - 037 Valaheien

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#

HO0100.01 Bedrock 4645 809 7 92 8 2.1 29.0

HO0100.02 Bedrock 1535 250 32 14 20 .7 27.0

HO0100.03 Bedrock 2882 170 6 27 8 1.9 22.0

HO0100.04 Bedrock 2088 73 10 10 10 1.5 20.0

HO0100.05 Bedrock 4372 11342 12 20 20 2.1 43.0

Valaheien 01 Dump 5080 21400 13 9 13 2.4 55.0

Valaheien 02 Bedrock 1130 363 11 3 6 .4 29.0

Valaheien 03 Dump 417 125 31 45 2 .8 34.0

Valaheien 04 Dump 9540 31000 5 21 6 3.1 53.0

------------------

Sample No. Pt# Pd# Rh# As* Cd* Ba* Mo* Sn* Sb*

HO0100.01 -3.0 -3.0 -5.0 38 -.2 5 6.00 5

HO0100.02 -3.0 -3.0 -5.0 66 -.2 1 4.00 3

HO0100.03 11.0 -3.0 -5.0 28 -.2 2 27.00 4

HO0100.04 -3.0 -3.0 -5.0 50 -.2 2 13.00 7

HO0100.05 -3.0 -3.0 -5.0 45 23.6 2 10.00 4

Valaheien 01 37 49.8 -10 10.20 1 1

Valaheien 02 43 .7 10 24.80 -0 1

Valaheien 03 71 .2 -10 26.00 -0 1

Valaheien 04 37 88.1 -10 27.30 1 0

------------------

Sample No. Bi* Se* Ga* Ge* In* S% V* Cr* Mn*

HO0100.01 -2 36.77 13 3 3

HO0100.02 -2 10.83 16 5 1826

HO0100.03 -2 12.01 78 3 178

HO0100.04 -2 25.87 32 3 28

HO0100.05 -2 24.73 8 13 38

Valaheien 01 4 53.00 2.59 0.24 1.18 9.99 7 10 276

Valaheien 02 5 13.00 1.96 0.14 0.27 9.99 15 7 564

Valaheien 03 5 36.00 3.42 0.23 0.05 9.99 36 4 268

Valaheien 04 4 39.00 9.92 0.25 1.43 9.99 83 7 592

------------------

Sample No. Fe% Th* U* W* Rb* Sr* Y* Zr* Nb*

HO0100.01 27.73 -2.00 -5.00 4 4.0

HO0100.02 11.39 -2.00 -5.00 -2 72.0

HO0100.03 28.90 -2.00 -5.00 5 5.0

HO0100.04 27.71 -2.00 -5.00 5 2.0

HO0100.05 23.70 -2.00 -5.00 -2 6.0

Valaheien 01 25.40 -0.01 1.40 0 0.1 17.6 1.4 -1 0.10

Valaheien 02 25.40 -0.01 1.40 0 1.2 44.2 0.6 -1 0.10

Valaheien 03 35.20 0.01 0.20 -0 0.1 4.1 0.8 -1 0.20

Valaheien 04 21.20 0.04 0.20 -0 0.1 8.2 2.2 2 0.10

------------------

Sample No. Ta* Cs* La* Ce* B* Li* Be* P* Sc*

HO0100.01 1.00 -3

HO0100.02 1.00 -3

HO0100.03 -1.00 -3

HO0100.04 -1.00 -3

HO0100.05 1.00 -3

Valaheien 01 -0.05 -0.05 -0.50 0.66 0 0 30 0.10

Valaheien 02 -0.05 0.23 -0.50 0.63 0 0 20 0.10

Valaheien 03 -0.05 -0.05 -0.50 0.59 3 -0 290 1.10

Valaheien 04 -0.05 -0.05 1.10 2.24 3 0 120 3.80

------------------

Sample No. Ti* Te* Hf* Re* Tl*

HO0100.01

HO0100.02

HO0100.03

HO0100.04

HO0100.05

Valaheien 01 -50 1.38 -0.10 0 0

Valaheien 02 -50 3.25 -0.10 0 0

Valaheien 03 -50 16.20 -0.10 0 0

Valaheien 04 350 4.67 0.10 0 0

Element/product	Crude ore grade or quality	Reg. date
Cu	0,37 %	13.03.2024
S	43,7 %	13.03.2024

From - To	Activity	Comments
1867 - 1888	Regular production	Company/Institution :Engelske interesser
1909 - 1917	Test mining

Era:	Paleozoic	Period:	Ordovician
Genesis:	Volcex	Form:	Layer
Main texture:	Banded	Min. distribution:	Massive (>50 % ore minerals)

	Province:	Caledonides
	Geotec.unit:	Hardangerfjord Nappe Complex
	Tectonic complex:	Varaldsøy Complex
	Igneous complex:

Relationship	Mineral	Amount
Gangue mineral	Quartz	Major mineral (>10%)
Ore mineral	Pyrite	Major mineral (>10%)
Ore mineral	Sphalerite	Subordinate mineral (1-10%)
Ore mineral	Magnetite	Subordinate mineral (1-10%)
Ore mineral	Chalcopyrite	Accessory mineral (<1%)

Relationship	Rock	Origin
Host rock	Greenstone	Extrusive Original rock :Basalt
		Metamorphic facies :Greenschist

Location:	Type:	Orientation(360 gr.):	Relation to min.:
Host rock	Primary layering	Strike/Dip :80 / 68	Syn-mineralisation ;...Effect :Controls
Host rock	Schistosity	Strike/Dip :80 / 68	Post-mineralisation ;...Effect :Modifies

	Abstract:
	Rapporten oppsummerer geologiske forhold, geologiske resultater og malmberegninger. Feltet omtales som forholdsvis lovende m.h.p. drift i liten skala. Forekomstnr. 20082, 20287 og 20290. Forekomstens navn og koordinater: Nygruva 32 3330 66708, Varaldsøy, Hisdalen 32 3309 66699. Valaheia 32 3345 66717.

Sample No.	Sample Type	Cu*	Zn*	Pb*	Co*	Ni*	Ag*	Au#
HO0100.01	Bedrock	4645	809	7	92	8	2.1	29.0
HO0100.02	Bedrock	1535	250	32	14	20	.7	27.0
HO0100.03	Bedrock	2882	170	6	27	8	1.9	22.0
HO0100.04	Bedrock	2088	73	10	10	10	1.5	20.0
HO0100.05	Bedrock	4372	11342	12	20	20	2.1	43.0
Valaheien 01	Dump	5080	21400	13	9	13	2.4	55.0
Valaheien 02	Bedrock	1130	363	11	3	6	.4	29.0
Valaheien 03	Dump	417	125	31	45	2	.8	34.0
Valaheien 04	Dump	9540	31000	5	21	6	3.1	53.0

Sample No.	Pt#	Pd#	Rh#	As*	Cd*	Ba*	Mo*	Sn*	Sb*
HO0100.01	-3.0	-3.0	-5.0	38	-.2	5	6.00		5
HO0100.02	-3.0	-3.0	-5.0	66	-.2	1	4.00		3
HO0100.03	11.0	-3.0	-5.0	28	-.2	2	27.00		4
HO0100.04	-3.0	-3.0	-5.0	50	-.2	2	13.00		7
HO0100.05	-3.0	-3.0	-5.0	45	23.6	2	10.00		4
Valaheien 01				37	49.8	-10	10.20	1	1
Valaheien 02				43	.7	10	24.80	-0	1
Valaheien 03				71	.2	-10	26.00	-0	1
Valaheien 04				37	88.1	-10	27.30	1	0

Sample No.	Bi*	Se*	Ga*	Ge*	In*	S%	V*	Cr*	Mn*
HO0100.01	-2					36.77	13	3	3
HO0100.02	-2					10.83	16	5	1826
HO0100.03	-2					12.01	78	3	178
HO0100.04	-2					25.87	32	3	28
HO0100.05	-2					24.73	8	13	38
Valaheien 01	4	53.00	2.59	0.24	1.18	9.99	7	10	276
Valaheien 02	5	13.00	1.96	0.14	0.27	9.99	15	7	564
Valaheien 03	5	36.00	3.42	0.23	0.05	9.99	36	4	268
Valaheien 04	4	39.00	9.92	0.25	1.43	9.99	83	7	592

Sample No.	Fe%	Th*	U*	W*	Rb*	Sr*	Y*	Zr*	Nb*
HO0100.01	27.73	-2.00	-5.00	4		4.0
HO0100.02	11.39	-2.00	-5.00	-2		72.0
HO0100.03	28.90	-2.00	-5.00	5		5.0
HO0100.04	27.71	-2.00	-5.00	5		2.0
HO0100.05	23.70	-2.00	-5.00	-2		6.0
Valaheien 01	25.40	-0.01	1.40	0	0.1	17.6	1.4	-1	0.10
Valaheien 02	25.40	-0.01	1.40	0	1.2	44.2	0.6	-1	0.10
Valaheien 03	35.20	0.01	0.20	-0	0.1	4.1	0.8	-1	0.20
Valaheien 04	21.20	0.04	0.20	-0	0.1	8.2	2.2	2	0.10

Sample No.	Ta*	Cs*	La*	Ce*	B*	Li*	Be*	P*	Sc*
HO0100.01			1.00		-3
HO0100.02			1.00		-3
HO0100.03			-1.00		-3
HO0100.04			-1.00		-3
HO0100.05			1.00		-3
Valaheien 01	-0.05	-0.05	-0.50	0.66		0	0	30	0.10
Valaheien 02	-0.05	0.23	-0.50	0.63		0	0	20	0.10
Valaheien 03	-0.05	-0.05	-0.50	0.59		3	-0	290	1.10
Valaheien 04	-0.05	-0.05	1.10	2.24		3	0	120	3.80