Fact Sheet for <b>Deposit 4227

					Norsk versjon
	THE ORE DATABASE
	Deposit 4227 - 046 Kvina
	(Object Id: 5095) (Last updated: 13.03.2024)

Location

County:

Agder

Municipality:

Kvinesdal (4227)

Map 1:50000:

Fjotland (1412-3)

Map 1:250000:

Mandal

Coordinate system:

EU89-UTM Zone 32

East:

389102 m.

North:

6508554 m.

Longitude:

7.0860350

Latitude:

58.7029050

Show on map

Resource

	Resource Type:	Ferroalloys (Cr,Ni,Co,V,Mo,W)	Resource Subtype:	Molybdenium
			Element(s):	Mo

Importance

Raw material meaning:

Not Assessed (reg. 18.02.2015)

Resources and production

	Activity:	Mining	Reserves:
	Operating method:	Underground mining	Historical production:	100 thousand tons

Products

Element/product Crude ore grade or quality Reg. date

Mo 0,2 % 13.03.2024

Operations

From - To Activity Comments

1904 - 1909 Test mining Company/Institution :P.I. Ousdal og N. Nilsen

Ousdal var gårdbruker og Nilsen fabrikkeier

1912 - 1918 Regular production Company/Institution :A/S Kvina Gruber

1925 - 1925 Regular production Company/Institution :A/S Kvina Gruber

1943 - 1944 Test mining

1952 - 1955 Regular production

Mineralization

Era: Proterozoic Period: Neoproterozoic

Genesis: Hydrothermal vein Form: Lens

Main texture: Structureless Min. distribution: Irregular (scattered)

Main grain size: Medium grained (1-3 mm) Main alteration:

Strike/Dip: 0 / 30 Direction:

Plunge:

Stratigraphic classification of host rock

Era: Proterozoic Period: Mesoproterozoic

Province: South Norwegian Basement Province

Geotec.unit: Agder Complex

Tectonic complex:

Igneous complex:

Group: Formation:

Information(s) in free text format

Free text

The Kvina deposit was intermittently mined in the period 1904 to 1954. About 100.000 tonnes of ore, was produced and yielded 290 tonnes of concentrate (in average 78-80 % MoS2) corresponding to 225-230 tonnes of contained 100 % MoS2 (Gvein et al. 1979). The molydenite mineralisation is situated in a foliation-concordant, ca. 30° E-dipping pegmatite sheet which is up to 5 m thick and extends approximately 300 m in N-S direction and 150 m in E-W direction within a deformed, reddish porphyritic granite. The pegmatite contains nests of coarse-grained molybdenite commonly associated with recrystalized, megacrystic biotite and along pegmatite-internal shear planes. In addition, coarse

Bibliography:

From NGU's Reference Archive:

Bugge, Arne , 1963

Norges molybdenforekomster.

;Norges geologiske undersøkelse;TIDSSKRIFTARTIKKEL;NGU; No.217;1-134 pages

Abstract:

The ore fields and individual deposits which are mentioned in the text are shown on the map, figure 2. For those areas where the deposits lie so close together that they cannot be shown separately on this map, detail maps have been drawn on larger scales. In the descriptions there will also be found special maps covering the most important molybdenum areas. An index of the deposits which are mentioned is arranged both alphabetically and according to the numbers on the map. The majority, including the most important, of the ore deposits in Southern Norway lie within a marked zone, which is shown on the map, figure 3. At varying periods of time different metals have characterised the long zone of ore deposits: titanium in the southwest, then molybdenum in the area from Gursli to Knaben, copper and molybdenum in Telemark, silver, zinc and lead from Kongsberg eastwards, and further to the east, molybdenum again. From the map, figure 4, it can be seen that the most important groups of deposits are situated to both sides of the granite-gneiss area of the mountanious region of Southern Norway and that they lie in migmatised gneisses along the southwest side and in the schists and quartzites of the Telemark supracrustal suite along the northeast side.

Müller, Axel; Henderson, Iain; Jourdan, Charles; Slagstad, Trond , 2016

Mineralization styles and formation temperatures of the Knaben molybdenum deposits, southern Norway

;Norges geologiske undersøkelse;RAPPORT;NGU-rapport; No.2015.030;59 pages

Abstract:

The report documents the lithologies and molybdenite mineralization exposed in underground mines of the Knaben molybdenum (Mo) mining district in Kvinesdal, Vest-Agder, SW Norway. Scanning electron microscope cathodoluminescence (SEM-CL) and trace element analyses of quartz by laser ablation inductively coupled mass Spectrometry (LA-ICP-MS) were performed on 37 quartz and quartz-bearing samples in order to better understand the P-T conditions during magma emplacement and Mo-mineralization.

References not to be found in NGU's Reference Archive.:

Gvein, Ø., Mørk, K. & Sverdrup, T.L. 1979: The Molybdenite-province of southwestern Norway. BV rapport 1038, 73p..

Fieldsamples

Sample No. Sample type Miscellanrous

JS-W2116 Bedrock

Sampler: J.S.Sandstad/...Stored: Løkken/...Size(kg): 2

Comment: Molybdenite strong dissemination/aggregates i coarse-grainedt quartz-feldspar-biotite pegmatite

No. of registrated element analyses = 1

JS-W2119 Bedrock

Sampler: J.S.Sandstad/...Stored: Løkken/...Size(kg): 2

Comment: Molybdenite aggregates + pyrite in feldspar pegmatite

No. of registrated element analyses = 1

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

Name of Locality: Grunnstollen

(Object Id: 38445 46,01,00)

Location

County: Agder Municipality: Kvinesdal (4227)

Map 1:50000: Fjotland (1412-3) Map 1:250000: Mandal

County: (Unavailable)

Resource

Resource Type: Ferroalloys (Cr,Ni,Co,V,Mo,W) Resource Subtype: Molybdenium

Element(s): Mo

Resources and production

Activity: Mining Reserves:

Operating method: Underground mining Historical production:

Name of Locality: Søndre dagåpning

(Object Id: 38446 46,02,00)

Location

County: Agder Municipality: Kvinesdal (4227)

Map 1:50000: Fjotland (1412-3) Map 1:250000: Mandal

County: (Unavailable)

Resource

Resource Type: Ferroalloys (Cr,Ni,Co,V,Mo,W) Resource Subtype: Molybdenium

Element(s): Mo

Resources and production

Activity: Mining Reserves:

Operating method: Underground mining Historical production:

Fieldsamples

Sample No. Sample type Miscellanrous

JS-W2117 Dump

Sampler: J.S.Sandstad/...Stored: Løkken/...Size(kg): 2

Comment: Molybdenite dissemination/aggregates i grey granite

No. of registrated element analyses = 1

JS-W2118 Bedrock

Sampler: J.S.Sandstad/...Stored: Løkken/...Size(kg): 2

Comment: Pyritt-molybdenite dissemination in granite with quartz-pegmatite

No. of registrated element analyses = 1

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

Analyse Results

from

Deposit Area 4227 - 046 Kvina

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#

JS-W2116 Bedrock 355 157 22 6 3 .7 43.0

JS-W2117 Dump 135 27 23 3 3 .1 -1.0

JS-W2118 Bedrock 452 8 19 3 2 .2 5.0

JS-W2119 Bedrock 258 41 36 4 4 .2 -1.0

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

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

JS-W2116 -5.0 -1.0 0 .3 690 9220.00 2 0 151

JS-W2117 -5.0 -1.0 1 .1 740 4650.00 1 0 0

JS-W2118 -5.0 -1.0 1 .1 460 337.00 0 0 1

JS-W2119 -5.0 -1.0 1 .2 880 6630.00 1 0 0

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

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

JS-W2116 3.00 29.20 0.09 0.06 1.00 44 4 300 2.54

JS-W2117 1.00 14.65 0.09 0.01 .46 8 5 146 .97

JS-W2118 1.00 9.88 0.06 0.01 .34 2 4 106 1.16

JS-W2119 2.00 19.75 0.15 0.03 .68 16 6 198 1.83

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

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

JS-W2116 5.40 1.50 9 266.0 203.0 5.4 11 29.90 2.23

JS-W2117 9.23 2.60 2 211.0 182.0 7.2 62 3.90 0.20

JS-W2118 3.66 1.90 1 177.0 106.0 4.2 34 1.80 0.18

JS-W2119 15.15 1.80 3 319.0 157.5 27.4 5 9.60 0.46

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

Sample No. Cs* La* Ce* Li* Be* Na* Mg* Al* P*

JS-W2116 2.07 16.70 32.20 41 1 15700 3600 59300 60

JS-W2117 1.12 23.60 46.40 12 1 16900 1000 57100 130

JS-W2118 0.49 5.10 10.25 5 0 9400 300 39000 40

JS-W2119 1.23 58.70 112.50 19 1 15300 2700 67000 460

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

Sample No. K * Ca* Sc* Ti* Te* Hf* Re* Tl*

JS-W2116 35200 7900 12.80 1430 6.88 0.50 0 2

JS-W2117 44600 5100 1.20 730 0.28 2.10 0 2

JS-W2118 36400 1100 0.30 230 0.69 1.60 0 1

JS-W2119 61700 2200 3.00 1820 0.73 0.20 0 2

	Element/product	Crude ore grade or quality	Reg. date
	Mo	0,2 %	13.03.2024

From - To	Activity	Comments
1904 - 1909	Test mining	Company/Institution :P.I. Ousdal og N. Nilsen
		Ousdal var gårdbruker og Nilsen fabrikkeier
1912 - 1918	Regular production	Company/Institution :A/S Kvina Gruber
1925 - 1925	Regular production	Company/Institution :A/S Kvina Gruber
1943 - 1944	Test mining
1952 - 1955	Regular production

Era:	Proterozoic	Period:	Neoproterozoic
Genesis:	Hydrothermal vein	Form:	Lens
Main texture:	Structureless	Min. distribution:	Irregular (scattered)

	Province:	South Norwegian Basement Province
	Geotec.unit:	Agder Complex
	Tectonic complex:
	Igneous complex:

Sample No.	Sample Type	Cu*	Zn*	Pb*	Co*	Ni*	Ag*	Au#
JS-W2116	Bedrock	355	157	22	6	3	.7	43.0
JS-W2117	Dump	135	27	23	3	3	.1	-1.0
JS-W2118	Bedrock	452	8	19	3	2	.2	5.0
JS-W2119	Bedrock	258	41	36	4	4	.2	-1.0

Sample No.	Pt#	Pd#	As*	Cd*	Ba*	Mo*	Sn*	Sb*	Bi*
JS-W2116	-5.0	-1.0	0	.3	690	9220.00	2	0	151
JS-W2117	-5.0	-1.0	1	.1	740	4650.00	1	0	0
JS-W2118	-5.0	-1.0	1	.1	460	337.00	0	0	1
JS-W2119	-5.0	-1.0	1	.2	880	6630.00	1	0	0

Sample No.	Se*	Ga*	Ge*	In*	S%	V*	Cr*	Mn*	Fe%
JS-W2116	3.00	29.20	0.09	0.06	1.00	44	4	300	2.54
JS-W2117	1.00	14.65	0.09	0.01	.46	8	5	146	.97
JS-W2118	1.00	9.88	0.06	0.01	.34	2	4	106	1.16
JS-W2119	2.00	19.75	0.15	0.03	.68	16	6	198	1.83

Sample No.	Th*	U*	W*	Rb*	Sr*	Y*	Zr*	Nb*	Ta*
JS-W2116	5.40	1.50	9	266.0	203.0	5.4	11	29.90	2.23
JS-W2117	9.23	2.60	2	211.0	182.0	7.2	62	3.90	0.20
JS-W2118	3.66	1.90	1	177.0	106.0	4.2	34	1.80	0.18
JS-W2119	15.15	1.80	3	319.0	157.5	27.4	5	9.60	0.46

Sample No.	Cs*	La*	Ce*	Li*	Be*	Na*	Mg*	Al*	P*
JS-W2116	2.07	16.70	32.20	41	1	15700	3600	59300	60
JS-W2117	1.12	23.60	46.40	12	1	16900	1000	57100	130
JS-W2118	0.49	5.10	10.25	5	0	9400	300	39000	40
JS-W2119	1.23	58.70	112.50	19	1	15300	2700	67000	460

Sample No.	K *	Ca*	Sc*	Ti*	Te*	Hf*	Re*	Tl*
JS-W2116	35200	7900	12.80	1430	6.88	0.50	0	2
JS-W2117	44600	5100	1.20	730	0.28	2.10	0	2
JS-W2118	36400	1100	0.30	230	0.69	1.60	0	1
JS-W2119	61700	2200	3.00	1820	0.73	0.20	0	2