Fact Sheet for <b>Occurence 1806 - 052 Hestvikåsen</b>

					Norsk versjon
	THE ORE DATABASE
	Occurence 1806 - 052 Hestvikåsen
	(Object Id: 2492) (Last updated: 07.02.2024)

Location

County:

Nordland

Municipality:

Narvik (1806)

Map 1:50000:

Skjomen (1331-1)

Map 1:250000:

Narvik

Coordinate system:

EU89-UTM Zone 33

East:

576791 m.

North:

7587797 m.

Longitude:

16.8688620

Latitude:

68.3925620

Show on map

Resource

	Resource Type:	Ferrous metals(Fe, Mn, Ti)	Resource Subtype:	Manganese
			Element(s):	Fe Mn

Importance

Raw material meaning:

Not Assessed (reg. 18.02.2015)

Resources and production

	Activity:	Pitting	Reserves:
	Operating method:	Underground mining	Historical production:

Products

Element/product Crude ore grade or quality Reg. date

Fe-mag. 30.5 % 04.01.1993

Fe-total 33.5 % 04.01.1993

MnO 1-10 % 04.01.1993

P 0.38 % 04.01.1993

S 0.004 % 04.01.1993

Operations

From - To Activity Comments

1899 - 1906 Pitting Company/Institution :A/S Håfjellets jernfelter

1935 - 1945 Geology Company/Institution :NGU

1976 - 1977 Geology Company/Institution :Rana Gruber

Mineralization

Era: Proterozoic Period: Neoproterozoic

Genesis: Sedex Form: Lens

Main texture: Banded Min. distribution: Semi-massive (20-50 % ore minerals)

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

Strike/Dip: 240 / 70 Direction: 260

Plunge: 20

Stratigraphic classification of host rock

Era: Proterozoic Period: Neoproterozoic

Province: Caledonides

Geotec.unit: Seve-Køli Nappe Complex

Tectonic complex: Upper allochton

Igneous complex:

Group: Salangen-group Formation: Håfjell iron formation

Mineralogy

Relationship Mineral Amount

Gangue mineral Garnet Major mineral (>10%)

Gangue mineral Quartz Major mineral (>10%)

Gangue mineral Apatite Subordinate mineral (1-10%)

Gangue mineral Amphibole Subordinate mineral (1-10%)

Ore mineral Hematite Major mineral (>10%)

Ore mineral Magnetite Major mineral (>10%)

Lithology:

Relationship Rock Origin

Host rock Calcite marble Sedimentary
Original rock :Limestone

Metamorphic facies :Amphibolite

Host rock Calcite bearing mica schist Sedimentary
Original rock :Argillaceous sediment

Metamorphic facies :Amphibolite

Wall rock (Garnet) mica schist Sedimentary
Original rock :Marl

Metamorphic facies :Amphibolite

Structures

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

Wall rock Primary layering Strike/Dip :240 / 60 Syn-mineralisation ;...Effect :None

Wall rock Fold axis Strike/Dip :270 / 20 Post-mineralisation ;...Effect :Modifies

Information(s) in free text format

Free text

Dette er et langt malmdrag som går fra Ofotfjorden ved Hestvika i SV-retning forbi Aspelund gård mot Toppåsen. Forekomsten strekker seg fra Hestvikneset, over Hestvikåsen, over Aspelund gård og til Heggåelva. Draget er 700 m langt. Mineraliseringen er også blottet i veiskjæring ved Aspelund gård. Ved Hestvikneset er det en hovedmineralisering og 3 andre mineraliserte lag litostratigrafisk over. Hestvikneset viser et godt blottet profil prøvetatt av T. Sørdal og I. Lindahl 04.09.92. Prøvene fra 1 til 7 er tatt nedenfra og oppover i litostratigrafien (mot senter av mulden) Ca. 5 røskegrøfter med sprengning er gjort langs draget. Kornstørrelsen varierer fra middelskornig (mt.-malm) til mer finkornig hem.malm. Stedvis er det en skarn type malm med høyt granatinnhold. Malmen ligger i en variert glimmerskifer sone som er omtrent 50 m tykk omgitt av kalmarmor. Ingen rapporter i Bergarkivet går direkte på forekomsten.

Bibliography:

From NGU's Reference Archive:

Foslie, Steinar , 1949

Håfjellsmulden i Ofoten og dens sedimentære jern-mangan-malmer. Søndre Ofotens malmforekomster II.

;Norges geologiske undersøkelse;TIDSSKRIFTARTIKKEL;NGU; No.174;1-129 + f pages

Abstract:

The sedimentary hematite-magnetite ores of marine origin, occurring within the crystalline mica schists of the caledonian mountain of Northern Norway, belong to a characteristic type of iron ore deposits, internationally known as the Dunderland ore type. Such deposits are known from latitude 65 degrees 20' to 69 degrees 40' N, thus covering a distance along the mountain chain of about 550 km. Transversely to this direction, they are known for at most 90 km, but generally much less. It is significant, that they do not occur farther southwards along the mountain chain, nor in its eastern part. The reason seems to be, taht they are connected with the so-called western development or the mountain chain formations, which disappear below the ocean in the Trondheim district. Compared with the eastern development, it is characterized by greater thickness of the sedimentary series, a far more considerable part of crystalline limestones and - so faar as now known - absence of the basic lavas (greenstone formation), which are important in the east and south. It belongs to a more central part of the geosyncline. The southern and greater part of the ore-bearing district is so strongly folded, that it has been difficult to establish the stratigraphic relation between the different deposits or their proper place within the formations.

Fieldsamples

Sample No. Sample type Miscellanrous

Hestvik-1 Bedrock

Sampler: Bjerkgård/Raaness/...Stored: Løkken

Comment: Finkornet mangangranat med magnetittslirer

No. of registrated oxide analyses = 1

Hestvik-2 Bedrock

Sampler: Bjerkgård/Raaness/...Stored: Løkken

Comment: Båndet magnetitt med noe mangan

No. of registrated oxide analyses = 1

Hestvik-3 Bedrock

Sampler: Bjerkgård/Raaness/...Stored: Løkken

Comment: Kvarts- og biotitt-amfibolbåndet med mm-cm hematitt og magnetittbånd

No. of registrated oxide analyses = 1

NO0354.02 Bedrock

Sampler: Lindahl, I./...Stored: Løkken

Comment: Magnetite skarn ore, 1 metres thick.

No. of registrated element analyses = 1

NO0354.03 Bedrock

Sampler: Lindahl, I./...Stored: Løkken

Comment: Banded relatiuvely poor ore of 1.5 metres.

No. of registrated element analyses = 1

NO0354.04 Bedrock

Sampler: Lindahl, I./...Stored: Løkken

Comment: Banded magnetite - hematite ore.

No. of registrated element analyses = 1

NO0354.05 Bedrock

Sampler: Lindahl, I./...Stored: Løkken

Comment: Magnetite - hematite skarn ore.

No. of registrated element analyses = 1

NO0354.06 Bedrock

Sampler: Lindahl, I./...Stored: Løkken

Comment: Banded coarse grained hematite- magnetite ore

No. of registrated element analyses = 1

NO0354.07 Bedrock

Sampler: Lindahl, I./...Stored: Løkken

Comment: Sulphide bearing layer i uopper part of iron formation.

No. of registrated element analyses = 1

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

Name of Sample point: Aspelund

(Object Id: 4036 52,00,01)

Location

County: Nordland Municipality: Narvik (1806)

Map 1:50000: Skjomen (1331-1) Map 1:250000: Narvik

Coordinate system: EU89-UTM Zone 33

East: 576462 m. North: 7587554 m.

Longitude: 16.8606590 Latitude: 68.3904730

Show on map

Resource

Resource Type: Ferrous metals(Fe, Mn, Ti) Resource Subtype: Manganese

Element(s): Fe

Fieldsamples

Sample No. Sample type Miscellanrous

NO0354.01 Bedrock

Sampler: Lindahl, I./...Stored: Løkken

Comment: Hematie ore in road cut.

No. of registrated element analyses = 1

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

Name of Sample point: Prøvepunkt

(Object Id: 39471 52,00,02)

Location

County: Nordland Municipality: Narvik (1806)

Map 1:50000: Skjomen (1331-1) Map 1:250000: Narvik

Coordinate system: EU89-UTM Zone 33

East: 576759 m. North: 7587810 m.

Longitude: 16.8680700 Latitude: 68.3926960

Show on map

Resource

Resource Type: Ferrous metals(Fe, Mn, Ti) Resource Subtype: Manganese

Element(s): Fe Mn

Fieldsamples

Sample No. Sample type Miscellanrous

obs.pkt.52 Bedrock

Sampler: Bjerkgård/Raaness/...Stored: Løkken

Comment: Båndet kvarts-amfibol-magnetittmineralisering

No. of registrated oxide analyses = 1

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

Analyse Results

from

Deposit Area 1806 - 052 Hestvikåsen

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#

NO0354.01 Bedrock 8 153 87 74 53 .3 9.0

NO0354.02 Bedrock 13 694 414 150 220 .6 6.0

NO0354.03 Bedrock 2 415 370 34 22 .1 4.0

NO0354.04 Bedrock 7 63 16 14 7 .1 8.0

NO0354.05 Bedrock 4 85 41 82 76 .4 4.0

NO0354.06 Bedrock 2 57 33 21 7 .1 12.0

NO0354.07 Bedrock 38 56 9 12 45 .1 2.0

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

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

NO0354.01 3.0 3.0 14 .3 19 1.00 2 2 .03

NO0354.02 3.0 3.0 5 1.8 15 1.00 2 3 .18

NO0354.03 3.0 3.0 2 1.2 164 1.00 5 5 .12

NO0354.04 3.0 3.0 2 .2 162 1.00 2 2 .01

NO0354.05 3.0 3.0 4 .8 37 1.00 2 2 .01

NO0354.06 3.0 3.0 5 .2 20 1.00 2 2 .02

NO0354.07 3.0 3.0 2 .2 15 1.00 2 3 2.68

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

Sample No. V* Cr* Mn* Fe% Th* U* W* Sr* La*

NO0354.01 12 12 13458 14.59 2.00 5.00 1 170.0 10.00

NO0354.02 42 18 12738 21.49 2.00 5.00 1 155.0 4.00

NO0354.03 34 16 5828 22.68 2.00 5.00 1 103.0 6.00

NO0354.04 37 21 579 19.46 2.00 13.00 1 34.0 7.00

NO0354.05 18 16 9390 13.77 2.00 5.00 1 260.0 10.00

NO0354.06 24 14 2857 19.25 2.00 5.00 1 92.0 5.00

NO0354.07 5 17 87 4.00 12.00 5.00 2 39.0 25.00

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

Sample No. B*

NO0354.01 2

NO0354.02 2

NO0354.03 2

NO0354.04 2

NO0354.05 2

NO0354.06 3

NO0354.07 3

Oxide analyses
( All values are in % )

Sample No. Sample Type SiO2 Al2O3 TiO2 Fe2O3 MnO MgO CaO

Hestvik-1 Bedrock 50.33 12.56 0.66 10.33 15.58 1.96 5.96

Hestvik-2 Bedrock 30.41 3.70 0.18 55.43 5.74 1.44 3.07

Hestvik-3 Bedrock 28.54 2.96 0.19 34.18 0.40 5.69 15.20

obs.pkt.52 Bedrock 34.32 3.13 0.26 54.53 0.19 2.55 4.13

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

Sample No. Na2O K2O P2O5 Loss Sum

Hestvik-1 -0.01 0.08 0.16 3.18 101.00

Hestvik-2 -0.01 0.05 0.49 0.58 101.00

Hestvik-3 0.62 0.10 0.34 12.12 100.00

obs.pkt.52 0.29 0.10 0.47 0.44 100.00

Element/product	Crude ore grade or quality	Reg. date
Fe-mag.	30.5 %	04.01.1993
Fe-total	33.5 %	04.01.1993
MnO	1-10 %	04.01.1993
P	0.38 %	04.01.1993
S	0.004 %	04.01.1993

From - To	Activity	Comments
1899 - 1906	Pitting	Company/Institution :A/S Håfjellets jernfelter
1935 - 1945	Geology	Company/Institution :NGU
1976 - 1977	Geology	Company/Institution :Rana Gruber

Era:	Proterozoic	Period:	Neoproterozoic
Genesis:	Sedex	Form:	Lens
Main texture:	Banded	Min. distribution:	Semi-massive (20-50 % ore minerals)

	Province:	Caledonides
	Geotec.unit:	Seve-Køli Nappe Complex
	Tectonic complex:	Upper allochton
	Igneous complex:

Relationship	Mineral	Amount
Gangue mineral	Garnet	Major mineral (>10%)
Gangue mineral	Quartz	Major mineral (>10%)
Gangue mineral	Apatite	Subordinate mineral (1-10%)
Gangue mineral	Amphibole	Subordinate mineral (1-10%)
Ore mineral	Hematite	Major mineral (>10%)
Ore mineral	Magnetite	Major mineral (>10%)

Relationship	Rock	Origin
Host rock	Calcite marble	Sedimentary Original rock :Limestone
		Metamorphic facies :Amphibolite
Host rock	Calcite bearing mica schist	Sedimentary Original rock :Argillaceous sediment
		Metamorphic facies :Amphibolite
Wall rock	(Garnet) mica schist	Sedimentary Original rock :Marl
		Metamorphic facies :Amphibolite

Location:	Type:	Orientation(360 gr.):	Relation to min.:
Wall rock	Primary layering	Strike/Dip :240 / 60	Syn-mineralisation ;...Effect :None
Wall rock	Fold axis	Strike/Dip :270 / 20	Post-mineralisation ;...Effect :Modifies

Sample No.	Sample Type	Cu*	Zn*	Pb*	Co*	Ni*	Ag*	Au#
NO0354.01	Bedrock	8	153	87	74	53	.3	9.0
NO0354.02	Bedrock	13	694	414	150	220	.6	6.0
NO0354.03	Bedrock	2	415	370	34	22	.1	4.0
NO0354.04	Bedrock	7	63	16	14	7	.1	8.0
NO0354.05	Bedrock	4	85	41	82	76	.4	4.0
NO0354.06	Bedrock	2	57	33	21	7	.1	12.0
NO0354.07	Bedrock	38	56	9	12	45	.1	2.0

Sample No.	Pt#	Pd#	As*	Cd*	Ba*	Mo*	Sb*	Bi*	S%
NO0354.01	3.0	3.0	14	.3	19	1.00	2	2	.03
NO0354.02	3.0	3.0	5	1.8	15	1.00	2	3	.18
NO0354.03	3.0	3.0	2	1.2	164	1.00	5	5	.12
NO0354.04	3.0	3.0	2	.2	162	1.00	2	2	.01
NO0354.05	3.0	3.0	4	.8	37	1.00	2	2	.01
NO0354.06	3.0	3.0	5	.2	20	1.00	2	2	.02
NO0354.07	3.0	3.0	2	.2	15	1.00	2	3	2.68

Sample No.	V*	Cr*	Mn*	Fe%	Th*	U*	W*	Sr*	La*
NO0354.01	12	12	13458	14.59	2.00	5.00	1	170.0	10.00
NO0354.02	42	18	12738	21.49	2.00	5.00	1	155.0	4.00
NO0354.03	34	16	5828	22.68	2.00	5.00	1	103.0	6.00
NO0354.04	37	21	579	19.46	2.00	13.00	1	34.0	7.00
NO0354.05	18	16	9390	13.77	2.00	5.00	1	260.0	10.00
NO0354.06	24	14	2857	19.25	2.00	5.00	1	92.0	5.00
NO0354.07	5	17	87	4.00	12.00	5.00	2	39.0	25.00

Sample No.	Sample Type	SiO2	Al2O3	TiO2	Fe2O3	MnO	MgO	CaO
Hestvik-1	Bedrock	50.33	12.56	0.66	10.33	15.58	1.96	5.96
Hestvik-2	Bedrock	30.41	3.70	0.18	55.43	5.74	1.44	3.07
Hestvik-3	Bedrock	28.54	2.96	0.19	34.18	0.40	5.69	15.20
obs.pkt.52	Bedrock	34.32	3.13	0.26	54.53	0.19	2.55	4.13

Sample No.	Na2O	K2O	P2O5	Loss	Sum
Hestvik-1	-0.01	0.08	0.16	3.18	101.00
Hestvik-2	-0.01	0.05	0.49	0.58	101.00
Hestvik-3	0.62	0.10	0.34	12.12	100.00
obs.pkt.52	0.29	0.10	0.47	0.44	100.00