Fact Sheet for Deposit Area 1833

					Norsk versjon
	THE ORE DATABASE
	Deposit Area 1833 - 013
	(Last updated 15.mar.2024)

Name of Deposit Area : Finnkåteng

(Object Id : 1833,013,00,00)

The deposit area belongs to the Province : Dunderlandsdalen jern

Location

County :

Nordland (18)

Municipality :

Rana (1833)

Map 1:50000:

Storforshei (2027-4)

Map 1:250000:

Mo i Rana

Marking point:

Longitude:

14.4383190

Latitude:

66.4254640

EU89-UTM Zone 33

(Coordinates IS confirmed)

X-coord:

474932 m.

Y-coord:

7367447 m.

Commodity

	Main Type:	Ferrous metals(Fe, Mn, Ti)	Sub Type:	Iron
			Element(s):	Fe

Production

Activity:	Mining	Reserves:	10000 thousand tons
Prod. method:	Open pit mining	Production:	10700 thousand tons
Prod. status:	Disused, closed	Volume of dump:	9000000 m3

Importance

Public: Not Assessed (reg. 07.12.2015)

Economical: Could be significant , (Confirmed 25.feb.2005 by Agnes Raaness)

Historical: Yes , (Confirmed 25.feb.2005 by Agnes Raaness)

Products

Element/product Crude ore grade or quality

FE 37.4 %

FE_MAG 3,9 %

Operations

From - To Activity Comments

1942 - 1945 Geology

1967 - 1970 Core drilling Company/Institution :Rana Gruber

1971 - 1980 Regular production Company/Institution : " "

1982 - 1982 Geology Company/Institution : " "

Mineralization

Era: Proterozoic Period: Neoproterozoic

Dating: Method:

Genesis: Sedex Form: Layer

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

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

Strike/Dip: 105 / 40 Direction: 270

Plunge: 20

Stratigraphic classification of host rock

Era: Proterozoic Period: Neoproterozoic

Province: Caledonides

Geotec.unit: Rødingsfjell Nappe Complex

Tectonic complex: Midtre allokton

Igneous complex:

Group: Ørtfjell-gruppen Formation: Dunderland jernformasjon

Mineralogy

Relationship Mineral Amount

Gangue mineral Quartz Major mineral (>10%)

Gangue mineral Calcite Subordinate mineral (1-10%)

Gangue mineral Apatite Subordinate mineral (1-10%)

Gangue mineral Muscovite Subordinate mineral (1-10%)

Gangue mineral Biotite Subordinate mineral (1-10%)

Gangue mineral Chlorite Subordinate mineral (1-10%)

Gangue mineral Amphibole Subordinate mineral (1-10%)

Gangue mineral Epidote Subordinate mineral (1-10%)

Gangue mineral Dolomite Subordinate mineral (1-10%)

Gangue mineral Oligoclase Subordinate mineral (1-10%)

Gangue mineral Pyrite Accessory mineral (<1%)

Gangue mineral Garnet Accessory mineral (<1%)

Ore mineral Hematite Major mineral (>10%)

Ore mineral Magnetite Subordinate mineral (1-10%)

Lithology:

Relationship Rock Origin

Unknown Carbonat mica schist Sedimentary
Original rock :Argillaceous sediment

Metamorphic facies :Amphibolite

Unknown Mica schist Sedimentary
Original rock :Greywacke

Metamorphic facies :Amphibolite

Structures

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

Unknown Fold axis Strike/Dip :270 / 20 Syn-mineralisation ;...Effect :None

Unknown Primary layering Strike/Dip :270 / 50 Syn-mineralisation ;...Effect :None

Unknown Foliation

Information(s) in free text format

Free text

Finnkåteng-forekomsten (250 m.o.h.) ligger 500 m vest for Veseråli/Vesteråga-forekomsten. Den sydlige sjenkel i synformen er den tykkeste; derfor er dagbruddet fra omfoldingen i øst og 600 m vestover. Lagrekken i Finnkåteng er: Øverst 50 m dolomitt 30 m kalkspatmarmor 50 m lys glimmerskifer 0,1-1 m granatfels 10-50 m hematittmalm 1-3 m lys glimmerskifer 12 m kalkglimmerskifer 50 m kalkspatmarmor Nederst ca.20 m dolomitt I sydsjenkelen varierer tykkelsen av malmen fra 30-50 m, mens nordsjenkelen er ca. 10 m tykk. Man finner langs hele sydsjenkelen en skiferbenk med uregelmessige utposninger i malmen. Skiferbenken er stedvis granatfels-førende, og mot vest er det flere spisse isoklinalfolder som gjør at malmen er sterkt oppstykket. Sydsjenkelen har strøk 270° og malmfall 80-90° mot nord, strøklengde 1,3 km. Granatfels er meget karakteristisk i overliggende lys glimmerskifer, dvs. like over Finnkåteng-malmen. Felsen er lys rødlig, lys gul og brun. Den brune granatfelsen har et høyt epidot-innhold og kan kalles granat-epidot-fels. Gjenværende underjordsmalm er 10 mill. tonn til nivå 50 langs en 1 km lang strøklengde. Dagbruddsmalmen (10,7 mill.t) ble tatt ut 1971-80. Gruva ble i malm-omfoldingen i øst drevet til nivå 150, og er idag fyllt med vann til vivå 185. I tillegg er det drevet ut 15,3 mill. t gråberg som med sp.v. 1,7 (steintipp) gir 9,0 m3 gråbergstipp. Det er diamantboret 12935 m i Finnkåteng i perioden 1967-70. Råmalmgehalten er (%): 37,4 % Fe-total, 3,9 % Fe-magn., 0,21 % P, 0,008 % S, 0,21 % TiO2, 0,16 % MnO, 0,48 % Na2O og 0,49 % K2O. Forholdet hematitt/magnetitt = 89,6/10,4 = 8,6. Tonnasje: 20,7 mill. t. Og mineralogien (vekt%): 47,9 % hematitt, 5,4 % magnetitt, 26,1 % kvarts, 4,8 % epidot, 4,6 % kloritt, 3,2 % amfibol, 1,0 % oligoklas, 1,0 % biotitt, 1,0 % muskovitt, 1,1 % apatitt, 0,1 % granat og 0,015 % svovelkis.

Bibliography:

From NGU's Reference Archive:

Søvegjarto, U.; Marker, M.; Gjelle, S. , 1989

Storforshei. Berggrunnskart; Storforshei; 20274; 1:50 000; trykt i farger;

;Norges geologiske undersøkelse;KART

Fieldsamples

Sample No. Sample type Miscellanrous

FK-4 Block

Sampler :J.S. Sandstad

Comment :Magnetite-quartz+hematite banded ore

No. of registrated element analyses = 1

No. of registrated oxide analyses = 1

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

Name of Sample point : Finnkåteng NØ

(Object Id : 1833,013,00,01)

Location

County : Nordland (18) Municipality : Rana (1833)

Map 1:50000: Storforshei (2027-4) Map 1:250000: Mo i Rana

Marking point: Longitude: 14.4461180 Latitude: 66.4265020

EU89-UTM Zone 33 (Coordinates IS confirmed)

X-coord: 475281 m. Y-coord: 7367559 m.

Commodity

Main Type: Ferrous metals(Fe, Mn, Ti) Sub Type: Iron

Element(s): Fe

Fieldsamples

Sample No. Sample type Miscellanrous

FK-1 Bedrock

Sampler :J.S. Sandstad

Comment :Hematite-quartz banded ore (hanging wall)

No. of registrated element analyses = 1

No. of registrated oxide analyses = 1

FK-2 Bedrock

Sampler :J.S. Sandstad

Comment :Massive hematite ore in contact with carbonate bands

No. of registrated element analyses = 1

No. of registrated oxide analyses = 1

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

Name of Sample point : Finnkåteng NØ

(Object Id : 1833,013,00,02)

Location

County : Nordland (18) Municipality : Rana (1833)

Map 1:50000: Storforshei (2027-4) Map 1:250000: Mo i Rana

Marking point: Longitude: 14.4441100 Latitude: 66.4261090

EU89-UTM Zone 33 (Coordinates IS confirmed)

X-coord: 475191 m. Y-coord: 7367516 m.

Commodity

Main Type: Ferrous metals(Fe, Mn, Ti) Sub Type: Iron

Element(s): Fe

Fieldsamples

Sample No. Sample type Miscellanrous

FK-3 Bedrock

Sampler :J.S. Sandstad

Comment :Hematite-quartz banded ore , fine grained (core of fold hinge)

No. of registrated element analyses = 1

No. of registrated oxide analyses = 1

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

Analyse Results

from

Deposit Area 1833 - 013 Finnkåteng

Element analyses
( *=parts pr. million, #=parts pr.billion, Negative values means below detection limit value.)

Sample No. Sample Type Cu* Zn* Pb* Co* Ni* Au# As*

FK-1 Bedrock 8 7 1 5 5 4.5 1

FK-2 Bedrock 9 4 1 3 6 2.5 7

FK-3 Bedrock 5 5 1 15 10 3.9 1

FK-4 Block 10 6 1 5 4 2.2 1

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

Sample No. Ba* Mo* Sn* Ga* V* Th* U* W* Rb*

FK-1 28 0.50 -1 2.80 53 2.10 -0.10 -1 2.2

FK-2 3 0.20 -1 2.70 68 1.70 0.40 -1 0.4

FK-3 47 0.60 -1 1.50 53 0.50 0.20 -1 2.5

FK-4 19 0.20 -1 1.40 44 0.70 0.20 -1 0.4

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

Sample No. Sr* Y* Zr* Nb* Ta* Cs* La* Ce* Pr*

FK-1 288.2 32.2 53 3.00 0.20 0.20 14.60 31.70 4.14

FK-2 220.9 41.6 62 4.10 0.20 -0.10 10.50 23.50 3.24

FK-3 147.8 26.0 15 1.00 -0.10 0.10 6.30 14.20 2.08

FK-4 90.5 19.1 16 1.00 -0.10 -0.10 5.40 11.90 1.70

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

Sample No. Nd* Sm* Eu* Gd* Tb* Dy* Ho* Er* Tm*

FK-1 17.40 3.38 0.65 3.84 0.61 4.20 0.94 2.95 0.48

FK-2 14.20 2.75 0.77 3.91 0.67 5.32 1.20 3.88 0.54

FK-3 9.30 2.02 0.48 2.60 0.44 3.29 0.75 2.52 0.35

FK-4 7.20 1.57 0.38 1.87 0.30 2.13 0.54 1.61 0.27

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

Sample No. Yb* Lu* Hf*

FK-1 2.96 0.52 1.00

FK-2 3.43 0.56 1.40

FK-3 2.43 0.42 0.30

FK-4 1.85 0.31 0.30

Oxide analyses
( All values are in % )

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

FK-1 Bedrock 30.73 1.87 0.11 58.07 0.33 2.02 3.88

FK-2 Bedrock 4.13 1.09 0.12 87.36 0.10 0.43 4.18

FK-3 Bedrock 23.42 0.73 0.06 67.37 0.59 1.22 3.16

FK-4 Block 26.30 0.70 0.06 69.21 0.33 1.03 1.87

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

Sample No. Na2O K2O P2O5 Loss Sum

FK-1 0.18 0.07 0.62 2.86 101.00

FK-2 -0.01 0.01 1.25 2.04 101.00

FK-3 -0.01 0.06 0.80 2.88 100.00

FK-4 -0.01 0.01 0.44 0.24 100.00

	Element/product	Crude ore grade or quality
	FE	37.4 %
	FE_MAG	3,9 %

From - To	Activity	Comments
1942 - 1945	Geology
1967 - 1970	Core drilling	Company/Institution :Rana Gruber
1971 - 1980	Regular production	Company/Institution : " "
1982 - 1982	Geology	Company/Institution : " "

Era:	Proterozoic	Period:	Neoproterozoic
Dating:		Method:
Genesis:	Sedex	Form:	Layer
Main texture:	Banded	Min. distribution:	Massive (>50 % ore minerals)

	Province:	Caledonides
	Geotec.unit:	Rødingsfjell Nappe Complex
	Tectonic complex:	Midtre allokton
	Igneous complex:

Relationship	Mineral	Amount
Gangue mineral	Quartz	Major mineral (>10%)
Gangue mineral	Calcite	Subordinate mineral (1-10%)
Gangue mineral	Apatite	Subordinate mineral (1-10%)
Gangue mineral	Muscovite	Subordinate mineral (1-10%)
Gangue mineral	Biotite	Subordinate mineral (1-10%)
Gangue mineral	Chlorite	Subordinate mineral (1-10%)
Gangue mineral	Amphibole	Subordinate mineral (1-10%)
Gangue mineral	Epidote	Subordinate mineral (1-10%)
Gangue mineral	Dolomite	Subordinate mineral (1-10%)
Gangue mineral	Oligoclase	Subordinate mineral (1-10%)
Gangue mineral	Pyrite	Accessory mineral (<1%)
Gangue mineral	Garnet	Accessory mineral (<1%)
Ore mineral	Hematite	Major mineral (>10%)
Ore mineral	Magnetite	Subordinate mineral (1-10%)

Relationship	Rock	Origin
Unknown	Carbonat mica schist	Sedimentary Original rock :Argillaceous sediment
		Metamorphic facies :Amphibolite
Unknown	Mica schist	Sedimentary Original rock :Greywacke
		Metamorphic facies :Amphibolite

Location:	Type:	Orientation(360 gr.):	Relation to min.:
Unknown	Fold axis	Strike/Dip :270 / 20	Syn-mineralisation ;...Effect :None
Unknown	Primary layering	Strike/Dip :270 / 50	Syn-mineralisation ;...Effect :None
Unknown	Foliation

Sample No.	Sample Type	Cu*	Zn*	Pb*	Co*	Ni*	Au#	As*
FK-1	Bedrock	8	7	1	5	5	4.5	1
FK-2	Bedrock	9	4	1	3	6	2.5	7
FK-3	Bedrock	5	5	1	15	10	3.9	1
FK-4	Block	10	6	1	5	4	2.2	1

Sample No.	Ba*	Mo*	Sn*	Ga*	V*	Th*	U*	W*	Rb*
FK-1	28	0.50	-1	2.80	53	2.10	-0.10	-1	2.2
FK-2	3	0.20	-1	2.70	68	1.70	0.40	-1	0.4
FK-3	47	0.60	-1	1.50	53	0.50	0.20	-1	2.5
FK-4	19	0.20	-1	1.40	44	0.70	0.20	-1	0.4

Sample No.	Sr*	Y*	Zr*	Nb*	Ta*	Cs*	La*	Ce*	Pr*
FK-1	288.2	32.2	53	3.00	0.20	0.20	14.60	31.70	4.14
FK-2	220.9	41.6	62	4.10	0.20	-0.10	10.50	23.50	3.24
FK-3	147.8	26.0	15	1.00	-0.10	0.10	6.30	14.20	2.08
FK-4	90.5	19.1	16	1.00	-0.10	-0.10	5.40	11.90	1.70

Sample No.	Nd*	Sm*	Eu*	Gd*	Tb*	Dy*	Ho*	Er*	Tm*
FK-1	17.40	3.38	0.65	3.84	0.61	4.20	0.94	2.95	0.48
FK-2	14.20	2.75	0.77	3.91	0.67	5.32	1.20	3.88	0.54
FK-3	9.30	2.02	0.48	2.60	0.44	3.29	0.75	2.52	0.35
FK-4	7.20	1.57	0.38	1.87	0.30	2.13	0.54	1.61	0.27

Sample No.	Yb*	Lu*	Hf*
FK-1	2.96	0.52	1.00
FK-2	3.43	0.56	1.40
FK-3	2.43	0.42	0.30
FK-4	1.85	0.31	0.30

Sample No.	Sample Type	SiO2	Al2O3	TiO2	Fe2O3	MnO	MgO	CaO
FK-1	Bedrock	30.73	1.87	0.11	58.07	0.33	2.02	3.88
FK-2	Bedrock	4.13	1.09	0.12	87.36	0.10	0.43	4.18
FK-3	Bedrock	23.42	0.73	0.06	67.37	0.59	1.22	3.16
FK-4	Block	26.30	0.70	0.06	69.21	0.33	1.03	1.87

Sample No.	Na2O	K2O	P2O5	Loss	Sum
FK-1	0.18	0.07	0.62	2.86	101.00
FK-2	-0.01	0.01	1.25	2.04	101.00
FK-3	-0.01	0.06	0.80	2.88	100.00
FK-4	-0.01	0.01	0.44	0.24	100.00