Fact Sheet for <b>Occurence 5514

					Norsk versjon
	THE ORE DATABASE
	Occurence 5514 - 005 Ibestad
	(Object Id: 1340) (Last updated: 26.04.2020)

Location

County:

Troms

Municipality:

Ibestad (5514)

Map 1:50000:

Andørja (1332-1)

Map 1:250000:

Narvik

Coordinate system:

EU89-UTM Zone 33

East:

585757 m.

North:

7631078 m.

Longitude:

17.1232130

Latitude:

68.7778940

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Resource

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

Importance

Raw material meaning:

Little Importance (reg. 18.02.2015)

Resources and production

	Activity:	Pitting	Reserves:
	Operating method:		Historical production:

Operations

From - To Activity Comments

1906 - 1907 Pitting

1961 - 1961 Sampling Company/Institution :Mannesmann AG

Mineralization

Era: Proterozoic Period: Neoproterozoic

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: 75 / 20 Direction:

Plunge:

Stratigraphic classification of host rock

Era: Proterozoic Period: Neoproterozoic

Province: Caledonides

Geotec.unit: Seve-Køli Nappe Complex

Tectonic complex:

Igneous complex:

Group: Bogengruppen Formation:

Mineralogy

Relationship Mineral Amount

Gangue mineral Feldspar Major mineral (>10%)

Gangue mineral Garnet Major mineral (>10%)

Gangue mineral Amphibole Major mineral (>10%)

Gangue mineral Quartz Major mineral (>10%)

Gangue mineral Chlorite Subordinate mineral (1-10%)

Gangue mineral Biotite Subordinate mineral (1-10%)

Ore mineral Magnetite Major mineral (>10%)

Lithology:

Relationship Rock Origin

Host rock Kalkspatmarmor Sedimentary
Original rock :Limestone

Metamorphic facies :Amphibolite

Host rock Granatgl.gneis Sedimentary
Original rock :Argillaceous sediment

Metamorphic facies :Amphibolite

Wall rock Granitt Intrusive
Original rock :Granite

Structures

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

Host rock Primary layering Strike/Dip :75 / 20 Syn-mineralisation ;...Effect :Controls

Host rock Foliation Strike/Dip :75 / 20 Post-mineralisation ;...Effect :Modifies

Information(s) in free text format

Free text

Den båndete jernformasjonen ble funnet blottet og røsket på to steder. Iflg. Gustavson (1974) kan den følges over en lengde på ca. 2.5 km. Det sørligste skjerpet, skjerp 1, har 2 m3 tipp og ligger i kanten og på nordsiden av ei myr. Avrøskingen er ufullstendig. Mineraliseringens mektighet er minst 2 m, og består av alternerende bånd i cm-skala av finkornet massiv magnetitt (i enkelte bånd med magnetittkrystaller opptil 6-7 mm) og bånd av feltspat, kvarts og granat, og monomineralske kvartsbånd. Det er også endel biotitt, kloritt og amfibol i mineraliseringen. Det er glimmergneis i heng og kalkspatmarmor i ligg. Foliasjon: 340°/20°. Mineraliseringen forsvinner i myra mot sør. Den kan følges ved kompassutslag under overdekket terreng mot NNØ. Iflg. lokalkjente er den blottet i skrenten ved UTM 585280 7630580. Sannsynligvis fortsetter den uten avbrudd til hovedskjerpet, hvor det i et søkk vest for Heia er sprengt ut 5 m3 i en skrent. Her er mineraliseringen minst 4 m mektig, og består av cm-mektige bånd av magnetitt (med større kornstørrelse enn i skjerp 1) som veksler med bånd av granat og kvarts, og monomineralske kvartsbånd. Også endel slirer av amfibol. Mineraliseringen omgis av middelskornet kalkspatmarmor både i heng og ligg. Langs liggen opptrer en tynn horisont med granat-glimmergneis med noe amfibol og litt magnetitt-disseminasjon. Foliasjon: 75°/20°. Mineraliseringen kan følges vestover i noen småknauser før den dreier mot sør og forsvinner under overdekket. Vest for skjerpet skjæres mineraliseringen av dm-mektige granittganger.

Bibliography:

From NGU's Reference Archive:

Boltke, H. , 1962

Ergebnisse der untersuchungen der Eisenerzlagerstatte Rolløya.

;Norges geologiske undersøkelse;TEKNISK RAPPORT;Bergarkivet; No.BA 3252;3 pages

Abstract:

Rapporten gir en kort petrografisk beskrivelse, analyseresultater og oppredningsforsøk av malmen. Malmen er en kvartsbåndet jernmalm med mulig 33 mill. tonn malmmengde. Analyse av råmalm gir 33 % Fe og 12 % Mn. Oppredningsforsøkene er positive, men forskjellige forhold som vanskelig tektonikk, liten mektighet og fasielle overganger til hematitt gjør at forekomsten ansees som uøkonomisk.

Gustavson, Magne , 1974

Harstad. Beskrivelse til det berggrunnsgeologiske gradteigskart M 8 - 1:100 000 (med fargetrykt kart)

;Norges geologiske undersøkelse;TIDSSKRIFTARTIKKEL; KARTBESKRIVELSE;NGU; Skrifter; No.309; 14;1-33 + ka pages

Abstract:

From a structural point of view the bedrocks of the map area can be subdivided into 1. Precambrian basement (autochthonous), and 2. Allochthonous Caledonian units. The Caledonian sequence embraces a) The lowermost over-thrust units, b) The main unit (Harstad Nappe) and c) The upper units (Straumsbotn Nappe and Niingen (?) Nappe). The main unit belongs to the Seve-KÎli Nappe Complex. The bedrock lithoogies within these units are briefly described. Metasediments, metamorphosed igneous intrusive rocks and possible metavolcanics (some amphibolite layers) are met with in the allochthounous sequence together with deformed Precambrian granite. Within the autochthonous Precambrian, granite and granitic gneiss predominate although meta-gabbro covers a large area in the northwestern part. Ore occurrences (magnetic ore, copper etc.) of the "skarn type" are connected with inclusions of metasediments (marble, mica schist etc.) in the Precambrian granite. The deformation history of the area can be subdivided into 3 episodes (F1, F2, F3) of which F1 and F2 are the most important ones. F1 resulted in mainly recumbent folds with an axial plane schistosity. This F1 schistosity is the regional schistosity now observed.

Fieldsamples

Sample No. Sample type Miscellanrous

JSFE1221 Bedrock

Sampler: Jan Sverre Sandstad/...Stored: Løkken/...Size(kg): 2

Comment: Massive magnetite in garnet-pyroxene-amphibole matrix, medium grained

No. of registrated element analyses = 1

No. of registrated oxide analyses = 1

JSFE1222 Bedrock

Sampler: Jan Sverre Sandstad/...Stored: Løkken/...Size(kg): 2

Comment: Banded magnetite-quartz mineralisation

No. of registrated element analyses = 1

No. of registrated oxide analyses = 1

JSFE1223 Bedrock

Sampler: Jan Sverre Sandstad/...Stored: Løkken/...Size(kg): 2

Comment: Banded magnetite-quartz-hornblende-garnet mineralisation, medium grained

No. of registrated element analyses = 1

No. of registrated oxide analyses = 1

JSFE1224 Bedrock

Sampler: Jan Sverre Sandstad/...Stored: Løkken/...Size(kg): 2

Comment: Garnetite, banded garnet-hornblende-magnetite, fine grained

No. of registrated element analyses = 1

No. of registrated oxide analyses = 1

TR0391.03 Bedrock

Sampler: Wilberg, R./...Stored: Løkken

Comment: Middelsk. mt-min. med kvarts, granat og amfibol

No. of registrated element analyses = 1

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

Name of Locality: Skjerp 1

(Object Id: 1694 5,01,00)

Location

County: Troms Municipality: Ibestad (5514)

Map 1:50000: Andørja (1332-1) Map 1:250000: Narvik

Coordinate system: EU89-UTM Zone 33

East: 585129 m. North: 7629941 m.

Longitude: 17.1067020 Latitude: 68.7678990

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Resource

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

Element(s): Fe

Resources and production

Activity: Pitting Reserves:

Operating method: Historical production:

Fieldsamples

Sample No. Sample type Miscellanrous

JSFE1225 Bedrock

Sampler: Jan Sverre Sandstad/...Stored: Løkken/...Size(kg): 2

Comment: Banded magnetite-quartz-hornblende-garnet mineralisation, fine grained

No. of registrated element analyses = 1

No. of registrated oxide analyses = 1

TR0391.01 Bedrock

Sampler: Wilberg, R./...Stored: Løkken

Comment: Båndet mt-min.

No. of registrated element analyses = 1

TR0391.02 Bedrock

Sampler: Wilberg, R./...Stored: Løkken

Comment: Massiv mt-min.

No. of registrated element analyses = 1

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

Analyse Results

from

Deposit Area 5514 - 005 Ibestad

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#

JSFE1221 Bedrock 3 5 1 57 26 3.1

JSFE1222 Bedrock 1 2 1 4 4 .9

JSFE1223 Bedrock 1 3 0 15 10 4.1

JSFE1224 Bedrock 52 15 1 293 229 2.9

JSFE1225 Bedrock 3 26 1 32 17 2.4

TR0391.01 Bedrock 17 11 9 73 55 -.3 2.0

TR0391.02 Bedrock 16 20 5 133 89 -.3 -2.0

TR0391.03 Bedrock 17 4 6 17 29 -.3 -2.0

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

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

JSFE1221 10 9 0.60

JSFE1222 2 1 0.80

JSFE1223 2 4 0.70

JSFE1224 3 2 1.10

JSFE1225 5 45 0.60

TR0391.01 -3.0 -3.0 -5.0 5 .2 16 1.00 3 4

TR0391.02 -3.0 -3.0 -5.0 6 -.2 32 2.00 2 -2

TR0391.03 -3.0 -3.0 -5.0 2 -.2 6 -1.00 2 2

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

Sample No. Ga* S% V* Cr* Mn* Fe% Th* U* W*

JSFE1221 3.60 33 68 1.00 0.05

JSFE1222 1.80 41 41 0.60 0.20

JSFE1223 2.00 73 109 0.70 0.05

JSFE1224 13.10 4 68 0.50 0.05

JSFE1225 8.80 40 68 1.00 0.05

TR0391.01 .18 5 12 13793 10.36 -2.00 -5.00 -2

TR0391.02 .76 12 25 13258 22.66 -2.00 -5.00 -2

TR0391.03 .14 62 30 5585 37.87 -2.00 -5.00 -2

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

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

JSFE1221 0.5 210.2 34.6 38 2.90 0.40 0.05 5.40 12.20

JSFE1222 0.2 62.5 15.3 18 2.00 0.05 0.05 8.30 15.40

JSFE1223 0.3 31.4 22.4 24 1.70 0.10 0.05 6.30 13.80

JSFE1224 0.3 73.2 44.9 135 12.70 0.80 0.05 6.60 14.20

JSFE1225 7.1 156.2 11.6 24 2.60 0.05 0.50 3.70 7.90

TR0391.01 186.0 12.00

TR0391.02 208.0 12.00

TR0391.03 39.0 3.00

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

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

JSFE1221 1.77 7.90 1.98 0.52 2.90 0.53 4.29 1.00 3.75

JSFE1222 2.13 9.90 1.75 0.42 2.21 0.32 2.12 0.40 1.43

JSFE1223 1.70 8.60 1.71 0.45 2.35 0.37 2.88 0.70 2.06

JSFE1224 2.05 9.90 2.78 0.76 4.47 0.82 6.86 1.54 4.83

JSFE1225 1.06 4.80 1.06 0.33 1.47 0.22 1.53 0.32 1.08

TR0391.01

TR0391.02

TR0391.03

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

Sample No. Tm* Yb* Lu* B* Hf*

JSFE1221 0.55 3.77 0.65 0.80

JSFE1222 0.23 1.51 0.25 0.20

JSFE1223 0.35 2.15 0.42 0.20

JSFE1224 0.80 5.51 0.80 3.00

JSFE1225 0.14 0.83 0.17 0.40

TR0391.01 -3

TR0391.02 -3

TR0391.03 -3

Oxide analyses
( All values are in % )

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

JSFE1221 Bedrock 25.19 2.24 0.18 58.79 3.83 3.29 7.10

JSFE1222 Bedrock 52.97 0.75 0.07 44.53 0.24 0.64 1.88

JSFE1223 Bedrock 38.35 0.92 0.10 56.17 1.33 1.40 2.96

JSFE1224 Bedrock 47.54 8.61 0.46 18.31 15.21 3.03 6.41

JSFE1225 Bedrock 45.38 0.95 0.15 50.73 0.98 0.69 1.54

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

Sample No. Na2O K2O P2O5 Loss Sum

JSFE1221 0.74 0.01 0.55 -1.50 100.00

JSFE1222 0.06 0.03 0.43 -1.29 100.00

JSFE1223 0.14 0.03 0.53 -1.66 100.00

JSFE1224 0.36 0.01 0.26 0.05 100.00

JSFE1225 0.15 0.11 0.43 -1.43 100.00

From - To	Activity	Comments
1906 - 1907	Pitting
1961 - 1961	Sampling	Company/Institution :Mannesmann AG

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

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

Relationship	Mineral	Amount
Gangue mineral	Feldspar	Major mineral (>10%)
Gangue mineral	Garnet	Major mineral (>10%)
Gangue mineral	Amphibole	Major mineral (>10%)
Gangue mineral	Quartz	Major mineral (>10%)
Gangue mineral	Chlorite	Subordinate mineral (1-10%)
Gangue mineral	Biotite	Subordinate mineral (1-10%)
Ore mineral	Magnetite	Major mineral (>10%)

Relationship	Rock	Origin
Host rock	Kalkspatmarmor	Sedimentary Original rock :Limestone
		Metamorphic facies :Amphibolite
Host rock	Granatgl.gneis	Sedimentary Original rock :Argillaceous sediment
		Metamorphic facies :Amphibolite
Wall rock	Granitt	Intrusive Original rock :Granite

Location:	Type:	Orientation(360 gr.):	Relation to min.:
Host rock	Primary layering	Strike/Dip :75 / 20	Syn-mineralisation ;...Effect :Controls
Host rock	Foliation	Strike/Dip :75 / 20	Post-mineralisation ;...Effect :Modifies

	Abstract:
	Rapporten gir en kort petrografisk beskrivelse, analyseresultater og oppredningsforsøk av malmen. Malmen er en kvartsbåndet jernmalm med mulig 33 mill. tonn malmmengde. Analyse av råmalm gir 33 % Fe og 12 % Mn. Oppredningsforsøkene er positive, men forskjellige forhold som vanskelig tektonikk, liten mektighet og fasielle overganger til hematitt gjør at forekomsten ansees som uøkonomisk.

Sample No.	Sample Type	Cu*	Zn*	Pb*	Co*	Ni*	Ag*	Au#
JSFE1221	Bedrock	3	5	1	57	26		3.1
JSFE1222	Bedrock	1	2	1	4	4		.9
JSFE1223	Bedrock	1	3	0	15	10		4.1
JSFE1224	Bedrock	52	15	1	293	229		2.9
JSFE1225	Bedrock	3	26	1	32	17		2.4
TR0391.01	Bedrock	17	11	9	73	55	-.3	2.0
TR0391.02	Bedrock	16	20	5	133	89	-.3	-2.0
TR0391.03	Bedrock	17	4	6	17	29	-.3	-2.0

Sample No.	Pt#	Pd#	Rh#	As*	Cd*	Ba*	Mo*	Sb*	Bi*
JSFE1221				10		9	0.60
JSFE1222				2		1	0.80
JSFE1223				2		4	0.70
JSFE1224				3		2	1.10
JSFE1225				5		45	0.60
TR0391.01	-3.0	-3.0	-5.0	5	.2	16	1.00	3	4
TR0391.02	-3.0	-3.0	-5.0	6	-.2	32	2.00	2	-2
TR0391.03	-3.0	-3.0	-5.0	2	-.2	6	-1.00	2	2

Sample No.	Ga*	S%	V*	Cr*	Mn*	Fe%	Th*	U*	W*
JSFE1221	3.60		33	68			1.00	0.05
JSFE1222	1.80		41	41			0.60	0.20
JSFE1223	2.00		73	109			0.70	0.05
JSFE1224	13.10		4	68			0.50	0.05
JSFE1225	8.80		40	68			1.00	0.05
TR0391.01		.18	5	12	13793	10.36	-2.00	-5.00	-2
TR0391.02		.76	12	25	13258	22.66	-2.00	-5.00	-2
TR0391.03		.14	62	30	5585	37.87	-2.00	-5.00	-2

Sample No.	Rb*	Sr*	Y*	Zr*	Nb*	Ta*	Cs*	La*	Ce*
JSFE1221	0.5	210.2	34.6	38	2.90	0.40	0.05	5.40	12.20
JSFE1222	0.2	62.5	15.3	18	2.00	0.05	0.05	8.30	15.40
JSFE1223	0.3	31.4	22.4	24	1.70	0.10	0.05	6.30	13.80
JSFE1224	0.3	73.2	44.9	135	12.70	0.80	0.05	6.60	14.20
JSFE1225	7.1	156.2	11.6	24	2.60	0.05	0.50	3.70	7.90
TR0391.01		186.0						12.00
TR0391.02		208.0						12.00
TR0391.03		39.0						3.00

Sample No.	Pr*	Nd*	Sm*	Eu*	Gd*	Tb*	Dy*	Ho*	Er*
JSFE1221	1.77	7.90	1.98	0.52	2.90	0.53	4.29	1.00	3.75
JSFE1222	2.13	9.90	1.75	0.42	2.21	0.32	2.12	0.40	1.43
JSFE1223	1.70	8.60	1.71	0.45	2.35	0.37	2.88	0.70	2.06
JSFE1224	2.05	9.90	2.78	0.76	4.47	0.82	6.86	1.54	4.83
JSFE1225	1.06	4.80	1.06	0.33	1.47	0.22	1.53	0.32	1.08
TR0391.01
TR0391.02
TR0391.03

Sample No.	Tm*	Yb*	Lu*	B*	Hf*
JSFE1221	0.55	3.77	0.65		0.80
JSFE1222	0.23	1.51	0.25		0.20
JSFE1223	0.35	2.15	0.42		0.20
JSFE1224	0.80	5.51	0.80		3.00
JSFE1225	0.14	0.83	0.17		0.40
TR0391.01				-3
TR0391.02				-3
TR0391.03				-3

Sample No.	Sample Type	SiO2	Al2O3	TiO2	Fe2O3	MnO	MgO	CaO
JSFE1221	Bedrock	25.19	2.24	0.18	58.79	3.83	3.29	7.10
JSFE1222	Bedrock	52.97	0.75	0.07	44.53	0.24	0.64	1.88
JSFE1223	Bedrock	38.35	0.92	0.10	56.17	1.33	1.40	2.96
JSFE1224	Bedrock	47.54	8.61	0.46	18.31	15.21	3.03	6.41
JSFE1225	Bedrock	45.38	0.95	0.15	50.73	0.98	0.69	1.54

Sample No.	Na2O	K2O	P2O5	Loss	Sum
JSFE1221	0.74	0.01	0.55	-1.50	100.00
JSFE1222	0.06	0.03	0.43	-1.29	100.00
JSFE1223	0.14	0.03	0.53	-1.66	100.00
JSFE1224	0.36	0.01	0.26	0.05	100.00
JSFE1225	0.15	0.11	0.43	-1.43	100.00