Faktarka for Forekomstområde 1917

					English version
	MALMDATABASEN
	Forekomstområde 1917 - 006
	(Sist oppdatert 26.apr.2020)

Navn på deposit area : Breidvoll

(Objekt Id : 1917,006,00,00)

Lokalisering

Fylke :

Troms (19)

Kommune :

Ibestad (1917)

Kart 1:50000:

Andørja (1332-1)

Kart 1:250000:

Narvik

Markeringspunkt:

Lengdegrad:

17.1348480

Breddegrad:

68.7666520

EU89-UTM Zone 33

(Coordinates IS confirmed)

X-koord:

586271 m.

Y-koord:

7629841 m.

Materialtype

	Hovedtype:	Jernmetaller (Fe, Mn, Ti)	Subtype:	Jern
			Element(s):	Fe Cu

Production

Activity:	Røsking	Reserves:
Prod. method:		Production:
Prod. status:		Volume of dump:

Betydning

Offentlig: Little Importance (reg. 18.02.2015)

Economical: Lite viktig , (Confirmed 18.feb.2005 by Peter Ihlen)

Operations

From - To Activity Comments

1906 - 1907 Pitting

1961 - 1961 Geology Company/Institution :Mannesmann AG

Mineralization

Era: Proterozoic Period: Neoproterozoic

Dating: Method:

Genesis: Sedeks Form: Lag

Main texture: Båndet Min. distribution: Semi-massiv

Main grain size: Middelskornet (1-3 mm) Main alteration:

Strike/Dip: 30 / 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 Garnet Major mineral (>10%)

Gangue mineral Amphibole Major mineral (>10%)

Gangue mineral Quartz Major mineral (>10%)

Gangue mineral Feldspar Subordinate mineral (1-10%)

Ore mineral Magnetite Major mineral (>10%)

Ore mineral Chalcopyrite Accessory mineral (<1%)

Lithology:

Relationship Rock Origin

Host rock Kalkspatmarmor Sedimentary
Original rock :Limestone

Metamorphic facies :Amphibolite

Structures

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

Host rock Foliation Strike/Dip :30 / 20 Post-mineralisation ;...Effect :Modifies

Host rock Primary layering Strike/Dip :30 / 20 Syn-mineralisation ;...Effect :Controls

Opplysning(er) i fritekstformat

Fri tekst

Mineraliseringen er lik TR0391 Ibestad, og er funnet blottet på to steder: Ved UTM 586330 7630050, på nordsiden av en liten kolle, vises i en blotning at mineraliseringen er minst 1.5 m mektig, og består av cm-mektige magnetittbånd som veksler med bånd av kvarts og granat (prøve 01). Heng og ligg er kalkspatmarmor. I østhellinga av Brattåsen, ved UTM 586100 7630150, dukker sannsynligvis den samme, mineraliseringen opp igjen i en liten blotning (og noen blokker) i noe som ser ut som en Ø-V-gående røskegrøft. Her opptrer mobilisert kobberkis på sprekkeflater i mineraliseringen (prøve 02). Mineraliseringen fortsetter iflg. Gustavson (1974) sørover til Skuteneset.

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

JSFE1218 Bedrock

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

Kommentar :Magnetite-quartz-hornblende-garnet banded mineralisation, medium grained

No. of registrated element analyses = 1

No. of registrated oxide analyses = 1

JSFE1219 Bedrock

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

Kommentar :Banded magnetite-quartz-hornblende/biotite+pyrite, fine-medium grained

No. of registrated element analyses = 1

No. of registrated oxide analyses = 1

JSFE1220 Bedrock

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

Kommentar :Banded garnet-magnetite-hornblende mineralisation

No. of registrated element analyses = 1

No. of registrated oxide analyses = 1

TR0392.01 Bedrock

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

Kommentar :Middelsk. båndet mt-min.

No. of registrated element analyses = 1

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

Navn på sample point : Prøvepunkt 1

(Objekt Id : 1917,006,00,01)

Lokalisering

Fylke : Troms (19) Kommune : Ibestad (1917)

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

Markeringspunkt: Lengdegrad: 17.1290460 Breddegrad: 68.7676660

EU89-UTM Zone 33 (Coordinates IS confirmed)

X-koord: 586032 m. Y-koord: 7629946 m.

Materialtype

Hovedtype: Jernmetaller (Fe, Mn, Ti) Subtype: Jern

Element(s): Fe

Fieldsamples

Sample No. Sample type Miscellanrous

TR0392.02 Bedrock

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

Kommentar :Båndet mt-min. med cpy på sprekker.

No. of registrated element analyses = 1

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

Navn på locality : Skrinndalen

(Objekt Id : 1917,006,01,00)

Lokalisering

Fylke : Troms (19) Kommune : Ibestad (1917)

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

Markeringspunkt: Lengdegrad: 17.1393630 Breddegrad: 68.7753210

EU89-UTM Zone 33 (Coordinates IS confirmed)

X-koord: 586419 m. Y-koord: 7630813 m.

Materialtype

Hovedtype: Jernmetaller (Fe, Mn, Ti) Subtype: Jern

Element(s): Fe

Production

Activity: Prospektering Reserves:

Prod. method: Production:

Prod. status: Volume of dump:

Fieldsamples

Sample No. Sample type Miscellanrous

JSFE1226 Bedrock

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

Kommentar :Banded magnetite-garnet-quartz-amphibole mineralisation, fine grained

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

Forekomstområde 1917 - 006 Breidvoll

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#

JSFE1218 Bedrock 1 15 1 10 6 3.8

JSFE1219 Bedrock 9 19 1 34 20 2.7

JSFE1220 Bedrock 8 10 1 95 39 2.3

JSFE1226 Bedrock 39 24 1 148 78 2.4

TR0392.01 Bedrock 16 9 -3 11 13 -.3 -2.0

TR0392.02 Bedrock 46 19 5 43 75 -.3 2.0

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

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

JSFE1218 2 22 0.50

JSFE1219 2 23 0.60

JSFE1220 2 10 1.10

JSFE1226 0 5 0.90

TR0392.01 -3.0 -3.0 -5.0 5 -.2 6 -1.00 5 -2

TR0392.02 -3.0 -3.0 -5.0 3 .4 5 1.00 7 -2

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

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

JSFE1218 7.70 59 14 1.80 0.30

JSFE1219 8.30 66 82 3.10 0.40

JSFE1220 10.80 17 41 2.80 1.10

JSFE1226 10.60 37 14 3.10 0.50

TR0392.01 .17 56 26 3608 30.11 2.00 -5.00 -2

TR0392.02 .29 47 24 6361 16.52 3.00 -5.00 -2

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

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

JSFE1218 4.5 63.7 19.0 41 4.70 0.20 0.05 9.60 20.60

JSFE1219 9.6 67.8 23.4 69 6.80 0.40 0.30 5.20 10.20

JSFE1220 6.2 29.4 40.6 136 5.50 0.50 0.40 7.00 18.20

JSFE1226 1.7 72.9 30.2 81 1.40 0.20 0.50 11.10 22.30

TR0392.01 35.0 6.00

TR0392.02 40.0 13.00

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

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

JSFE1218 2.65 9.80 2.29 0.56 2.86 0.42 3.20 0.65 2.18

JSFE1219 1.51 6.80 2.11 0.59 3.10 0.51 3.74 0.76 2.31

JSFE1220 1.92 8.00 2.43 0.82 5.49 0.99 6.94 1.32 3.96

JSFE1226 3.10 12.70 2.92 0.76 4.03 0.62 4.57 0.91 2.89

TR0392.01

TR0392.02

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

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

JSFE1218 0.33 2.30 0.35 0.90

JSFE1219 0.35 2.47 0.42 1.60

JSFE1220 0.56 3.95 0.62 3.30

JSFE1226 0.45 3.18 0.52 1.80

TR0392.01 -3

TR0392.02 -3

Oxide analyses
( All values are in % )

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

JSFE1218 Bedrock 45.09 2.70 0.20 44.91 0.52 2.28 4.41

JSFE1219 Bedrock 44.44 5.15 0.29 38.28 1.90 3.09 5.86

JSFE1220 Bedrock 44.77 13.26 0.24 21.11 11.87 1.95 7.26

JSFE1226 Bedrock 45.07 5.70 0.36 33.05 7.25 2.56 4.86

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

Sample No. Na2O K2O P2O5 Loss Sum

JSFE1218 0.63 0.25 0.53 -1.11 100.00

JSFE1219 0.67 0.57 0.40 -0.41 100.00

JSFE1220 0.21 0.08 0.23 -0.46 101.00

JSFE1226 0.13 0.03 0.61 -0.52 99.00

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

Era:	Proterozoic	Period:	Neoproterozoic
Dating:		Method:
Genesis:	Sedeks	Form:	Lag
Main texture:	Båndet	Min. distribution:	Semi-massiv

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

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

Relationship	Rock	Origin
Host rock	Kalkspatmarmor	Sedimentary Original rock :Limestone
		Metamorphic facies :Amphibolite

Location:	Type:	Orientation(360 gr.):	Relation to min.:
Host rock	Foliation	Strike/Dip :30 / 20	Post-mineralisation ;...Effect :Modifies
Host rock	Primary layering	Strike/Dip :30 / 20	Syn-mineralisation ;...Effect :Controls

	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.

Activity:	Prospektering	Reserves:
Prod. method:		Production:
Prod. status:		Volume of dump:

Sample No.	Sample Type	Cu*	Zn*	Pb*	Co*	Ni*	Ag*	Au#
JSFE1218	Bedrock	1	15	1	10	6		3.8
JSFE1219	Bedrock	9	19	1	34	20		2.7
JSFE1220	Bedrock	8	10	1	95	39		2.3
JSFE1226	Bedrock	39	24	1	148	78		2.4
TR0392.01	Bedrock	16	9	-3	11	13	-.3	-2.0
TR0392.02	Bedrock	46	19	5	43	75	-.3	2.0

Sample No.	Pt#	Pd#	Rh#	As*	Cd*	Ba*	Mo*	Sb*	Bi*
JSFE1218				2		22	0.50
JSFE1219				2		23	0.60
JSFE1220				2		10	1.10
JSFE1226				0		5	0.90
TR0392.01	-3.0	-3.0	-5.0	5	-.2	6	-1.00	5	-2
TR0392.02	-3.0	-3.0	-5.0	3	.4	5	1.00	7	-2

Sample No.	Ga*	S%	V*	Cr*	Mn*	Fe%	Th*	U*	W*
JSFE1218	7.70		59	14			1.80	0.30
JSFE1219	8.30		66	82			3.10	0.40
JSFE1220	10.80		17	41			2.80	1.10
JSFE1226	10.60		37	14			3.10	0.50
TR0392.01		.17	56	26	3608	30.11	2.00	-5.00	-2
TR0392.02		.29	47	24	6361	16.52	3.00	-5.00	-2

Sample No.	Rb*	Sr*	Y*	Zr*	Nb*	Ta*	Cs*	La*	Ce*
JSFE1218	4.5	63.7	19.0	41	4.70	0.20	0.05	9.60	20.60
JSFE1219	9.6	67.8	23.4	69	6.80	0.40	0.30	5.20	10.20
JSFE1220	6.2	29.4	40.6	136	5.50	0.50	0.40	7.00	18.20
JSFE1226	1.7	72.9	30.2	81	1.40	0.20	0.50	11.10	22.30
TR0392.01		35.0						6.00
TR0392.02		40.0						13.00

Sample No.	Pr*	Nd*	Sm*	Eu*	Gd*	Tb*	Dy*	Ho*	Er*
JSFE1218	2.65	9.80	2.29	0.56	2.86	0.42	3.20	0.65	2.18
JSFE1219	1.51	6.80	2.11	0.59	3.10	0.51	3.74	0.76	2.31
JSFE1220	1.92	8.00	2.43	0.82	5.49	0.99	6.94	1.32	3.96
JSFE1226	3.10	12.70	2.92	0.76	4.03	0.62	4.57	0.91	2.89
TR0392.01
TR0392.02

Sample No.	Tm*	Yb*	Lu*	B*	Hf*
JSFE1218	0.33	2.30	0.35		0.90
JSFE1219	0.35	2.47	0.42		1.60
JSFE1220	0.56	3.95	0.62		3.30
JSFE1226	0.45	3.18	0.52		1.80
TR0392.01				-3
TR0392.02				-3

Sample No.	Sample Type	SiO2	Al2O3	TiO2	Fe2O3	MnO	MgO	CaO
JSFE1218	Bedrock	45.09	2.70	0.20	44.91	0.52	2.28	4.41
JSFE1219	Bedrock	44.44	5.15	0.29	38.28	1.90	3.09	5.86
JSFE1220	Bedrock	44.77	13.26	0.24	21.11	11.87	1.95	7.26
JSFE1226	Bedrock	45.07	5.70	0.36	33.05	7.25	2.56	4.86

Sample No.	Na2O	K2O	P2O5	Loss	Sum
JSFE1218	0.63	0.25	0.53	-1.11	100.00
JSFE1219	0.67	0.57	0.40	-0.41	100.00
JSFE1220	0.21	0.08	0.23	-0.46	101.00
JSFE1226	0.13	0.03	0.61	-0.52	99.00