Fact Sheet for Deposit Area 1833

					Norsk versjon
	THE ORE DATABASE
	Deposit Area 1833 - 001
	(Last updated 05.sep.2018)

Name of Deposit Area : Breifonn

(Object Id : 1833,001,00,00)

The deposit area belongs to the Province : Mofjellet sink-bly

Location

County :

Nordland (18)

Municipality :

Rana (1833)

Map 1:50000:

Storforshei (2027-4)

Map 1:250000:

Mo i Rana

Marking point:

Longitude:

14.2341230

Latitude:

66.2978190

EU89-UTM Zone 33

(Coordinates IS confirmed)

X-coord:

465646 m.

Y-coord:

7353316 m.

Commodity

	Main Type:	Base metals (Cu,Zn,Pb,Fe sulphides, As,Sb,Bi,Sn)	Sub Type:	Zinc
			Element(s):	Zn Cu Pb

Production

Activity:	Pitting	Reserves:
Prod. method:		Production:	,04 thousand tons
Prod. status:	Not yet active	Volume of dump:	170 m3

Importance

Public: Not Assessed (reg. 18.02.2015)

Economical: Not classified/evaluated

Products

Element/product Crude ore grade or quality

CU 1.4 %

PB 1 %

ZN 5.6 %

Operations

From - To Activity Comments

1915 - 1916 Pitting

1975 - 1976 Geophysics

1980 - 1980 Core drilling

1983 - 1984 Geophysics

1986 - 1986 Geophysics

Mineralization

Era: Proterozoic Period: Neoproterozoic

Dating: Method:

Genesis: Sedex Form: Lens

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

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

Strike/Dip: 260 / 30 Direction: 270

Plunge: 5

Stratigraphic classification of host rock

Era: Proterozoic Period: Neoproterozoic

Province: Caledonides

Geotec.unit: Rødingsfjell Nappe Complex

Tectonic complex: Øverste allokton

Igneous complex:

Group: Mofjellgruppen Formation:

Mineralogy

Relationship Mineral Amount

Gangue mineral Quartz Major mineral (>10%)

Gangue mineral Biotite Subordinate mineral (1-10%)

Gangue mineral Plagioclase Subordinate mineral (1-10%)

Gangue mineral Potassic feldspar Subordinate mineral (1-10%)

Gangue mineral Muscovite Subordinate mineral (1-10%)

Ore mineral Sphalerite Major mineral (>10%)

Ore mineral Pyrrhotite Major mineral (>10%)

Ore mineral Chalcopyrite Subordinate mineral (1-10%)

Ore mineral Galena Subordinate mineral (1-10%)

Ore mineral Marcasite Accessory mineral (<1%)

Ore mineral Rutile Accessory mineral (<1%)

Ore mineral Molybdenite Accessory mineral (<1%)

Ore mineral Tetrahedrite Accessory mineral (<1%)

Ore mineral Magnetite Accessory mineral (<1%)

Ore mineral Arsenopyrite Accessory mineral (<1%)

Lithology:

Relationship Rock Origin

Host rock Muskovittgneis Extrusive
Original rock :Tuff

Metamorphic facies :Amphibolite

Structures

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

Host rock Foliation Strike/Dip :260 / 30 Post-mineralisation ;...Effect :None

Host rock Mineral lineation Strike/Dip :270 / 5 Post-mineralisation ;...Effect :Controls

Host rock Fold axis Strike/Dip :270 / 5 Post-mineralisation ;...Effect :Controls

Information(s) in free text format

Free text

I 1915-16 ble det drevet en 2 m dyp 20x4 m dagstrosse og uttatt 40 tonn malm, hvorav 5 tonn inneholdende 17 % Cu ble utskeidet. Mineraliseringen ligger i samme sone som Sølvberg Grube, og det er målt geofysikk både fra helikopter og med flere metoder på bakken, samt diamantboring (4 hull i 1978 og 1980). Boringene viste bare noen 5 cm tynne, massive malmstriper med magnetkis, sinkblende, kobberkis og blyglans, mens utgående viser 0.25 m mektig (0.10-0.70 m) massivmalm (prøve 02-05). Kruse (1981) konkluderer med at det dreier seg om en smal malmblyant med liten mektighet. Malmmineraler er magnetkis, kobberkis, sinkblende, blyglans, valleriitt, molybdenglans, arsenkis, tetrahedritt, rutil, magnetitt, breithauptitt, cubanitt og markasitt. Hengbergart er granatglimmergneis, med litt epidot og hornblende. Liggbergart er lys muskovittgneis (01). Dagstrossen (hovedskjerpet) er vannfylt, og mineraliseringen (04 og 05) sees ikke i fastfjell, men mektigheten oppgis som nevnt til 0.10-0.70 m. 35 m vest for vestenden av dagstrossen er det skjerpet (2x2 m, 4 m3 tipp) uten å treffe mineralisering.

Bibliography:

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

Kruse, A. 1965: Oversikt over malmfelt og malmletingsarbeider i Ranen. Rapport Bergverksselskapet Nord-Norge.

Endresen, B.A. 1972: Sulfidlokaliteter i Rana - kort oversikt med forsøk på kvalitativ kartlegging. Upubl. rapport.

Saager, R. 1966: Erzgeologische Untersuchungen an Kaledonischen Blei, Zink und Kupfer fürenden Kieslagerstätten im Nord-Rana - Distrikt, Nord-Norwegwn. Doktoravhandling ETH, Zürich.

Kruse, A. 1981: Diamantboring Breifonn-skjerpene, Rana, Nordland 1980. Intern rapport nr. 8106. Bergverksselskapet Nord-Norge A/S.

Kruse, A. 1984: Undersøkelse av Sølvberg-grubesonen, Mo i Rana, Nordland. Joint venture Project mellom A/S Sydvaranger/Prospektering A/S og LKAB/Svenska Petroleum AB. Int. rapp. nr. 8402. Prospektering A/S.

Fieldsamples

Sample No. Sample type Miscellanrous

BREI-01 Dump

Sampler :T. Bjerkgård

Comment :Vein of chalcopyrite and pyrrhotite with lesser sphalerite and galena in quartz-sericite schist

No. of registrated element analyses = 1

BREI-02 Dump

Sampler :T. Bjerkgård

Comment :Massive ore of pyrrhotite, chalcopyrite and sphalerite with subordinate galena

No. of registrated element analyses = 1

BREI-03 Dump

Sampler :T. Bjerkgård

Comment :Massive ore of pyrrhotite, chalcopyrite and sphalerite. Subordinate galena

No. of registrated element analyses = 1

NO0010.04 Bedrock

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

Comment :Semimassiv po-sl-cpy-malm.

No. of registrated element analyses = 1

NO0010.05 Bedrock

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

Comment :Semimassiv po-sl-cpy-malm.

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 : 1833,001,01,00)

Location

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

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

Marking point: Longitude: 14.2269240 Latitude: 66.2976120

EU89-UTM Zone 33 (Coordinates IS confirmed)

X-coord: 465322 m. Y-coord: 7353297 m.

Commodity

Main Type: Base metals (Cu,Zn,Pb,Fe sulphides, As,Sb,Bi,Sn) Sub Type: Zinc

Element(s): Zn Cu Pb

Production

Activity: Pitting Reserves:

Prod. method: Production:

Prod. status: Not yet active Volume of dump:

Information(s) in free text format

Free text

Her er det sprengt ut 40 m3 i en skrent. Massiv-malmen (02 og 03) opptrer i boudinerte linser, opptil 25 cm mektige, som ligger stjert om stjert, med noen uregelmessige anrikninger i muskovittgneisen utenom.

Fieldsamples

Sample No. Sample type Miscellanrous

BREI-04 Dump

Sampler :T. Bjerkgård

Comment :Massive po-sl-ga-cpy in irregular aggregates

No. of registrated element analyses = 1

BREI-05 Dump

Sampler :T. Bjerkgård

Comment :Massive po-sl-cpy-ga in irregular aggregates

No. of registrated element analyses = 1

NO0010.01 Bedrock

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

Comment :Muskovittgneis fra sideberg.

No. of registrated element analyses = 1

NO0010.02 Bedrock

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

Comment :Semimassiv po-sl-cpy-malm.

No. of registrated element analyses = 1

NO0010.03 Bedrock

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

Comment :Semimassiv po-sl-cpy-malm.

No. of registrated element analyses = 1

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

Analyse Results

from

Deposit Area 1833 - 001 Breifonn

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#

BREI-01 Dump 46200 63600 16350 4 33 30.0 100.0

BREI-02 Dump 14150 27200 138 5 -5 3.0 10.0

BREI-03 Dump 3030 52300 3070 7 -5 6.0 -10.0

BREI-04 Dump 6810 71600 9060 6 16 15.0 10.0

BREI-05 Dump 41100 64300 9930 3 12 12.0 10.0

NO0010.01 Bedrock 9 237 94 2 4 1.2 2.0

NO0010.02 Bedrock 11232 96736 4328 20 77 9.3 8.0

NO0010.03 Bedrock 3695 62525 16839 24 94 25.7 7.0

NO0010.04 Bedrock 8221 99999 386 22 61 3.5 5.0

NO0010.05 Bedrock 32969 99999 21619 24 63 51.8 9.0

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

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

BREI-01 52 1025 25.00 34 16 93

BREI-02 11 110 20.00 1 14 138

BREI-03 17 67 24.00 -1 -5 26

BREI-04 -5 79 30.00 1 5 54

BREI-05 -5 490 41.00 14 8 18

NO0010.01 1.0 1.0 4 .9 32 3.00 2 2

NO0010.02 2.0 2.0 2 507.8 12 3.00 2 57

NO0010.03 1.0 6.0 4 328.3 9 5.00 13 72

NO0010.04 1.0 3.0 2 672.3 10 3.00 2 42

NO0010.05 1.0 3.0 2 657.3 10 5.00 16 40

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

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

BREI-01 29.00 11.85

BREI-02 5.00 50.00

BREI-03 5.00 47.30

BREI-04 8.00 39.10

BREI-05 14.00 26.40

NO0010.01 .49 1 3 24 .62 2.00 5.00 1

NO0010.02 28.86 8 1 1706 27.57 2.00 5.00 4

NO0010.03 27.88 10 2 1133 30.64 2.00 5.00 2

NO0010.04 31.19 1 1 1676 27.98 2.00 5.00 1

NO0010.05 29.81 2 1 1509 29.18 1.00 5.00 1

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

Sample No. Sr* La* B*

BREI-01

BREI-02

BREI-03

BREI-04

BREI-05

NO0010.01 2.0 3.00 2

NO0010.02 3.0 2.00 2

NO0010.03 2.0 2.00 2

NO0010.04 1.0 2.00 2

NO0010.05 1.0 3.00 2

	Element/product	Crude ore grade or quality
	CU	1.4 %
	PB	1 %
	ZN	5.6 %

From - To	Activity	Comments
1915 - 1916	Pitting
1975 - 1976	Geophysics
1980 - 1980	Core drilling
1983 - 1984	Geophysics
1986 - 1986	Geophysics

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

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

Relationship	Mineral	Amount
Gangue mineral	Quartz	Major mineral (>10%)
Gangue mineral	Biotite	Subordinate mineral (1-10%)
Gangue mineral	Plagioclase	Subordinate mineral (1-10%)
Gangue mineral	Potassic feldspar	Subordinate mineral (1-10%)
Gangue mineral	Muscovite	Subordinate mineral (1-10%)
Ore mineral	Sphalerite	Major mineral (>10%)
Ore mineral	Pyrrhotite	Major mineral (>10%)
Ore mineral	Chalcopyrite	Subordinate mineral (1-10%)
Ore mineral	Galena	Subordinate mineral (1-10%)
Ore mineral	Marcasite	Accessory mineral (<1%)
Ore mineral	Rutile	Accessory mineral (<1%)
Ore mineral	Molybdenite	Accessory mineral (<1%)
Ore mineral	Tetrahedrite	Accessory mineral (<1%)
Ore mineral	Magnetite	Accessory mineral (<1%)
Ore mineral	Arsenopyrite	Accessory mineral (<1%)

Relationship	Rock	Origin
Host rock	Muskovittgneis	Extrusive Original rock :Tuff
		Metamorphic facies :Amphibolite

Location:	Type:	Orientation(360 gr.):	Relation to min.:
Host rock	Foliation	Strike/Dip :260 / 30	Post-mineralisation ;...Effect :None
Host rock	Mineral lineation	Strike/Dip :270 / 5	Post-mineralisation ;...Effect :Controls
Host rock	Fold axis	Strike/Dip :270 / 5	Post-mineralisation ;...Effect :Controls

Sample No.	Sample Type	Cu*	Zn*	Pb*	Co*	Ni*	Ag*	Au#
BREI-01	Dump	46200	63600	16350	4	33	30.0	100.0
BREI-02	Dump	14150	27200	138	5	-5	3.0	10.0
BREI-03	Dump	3030	52300	3070	7	-5	6.0	-10.0
BREI-04	Dump	6810	71600	9060	6	16	15.0	10.0
BREI-05	Dump	41100	64300	9930	3	12	12.0	10.0
NO0010.01	Bedrock	9	237	94	2	4	1.2	2.0
NO0010.02	Bedrock	11232	96736	4328	20	77	9.3	8.0
NO0010.03	Bedrock	3695	62525	16839	24	94	25.7	7.0
NO0010.04	Bedrock	8221	99999	386	22	61	3.5	5.0
NO0010.05	Bedrock	32969	99999	21619	24	63	51.8	9.0

Sample No.	Pt#	Pd#	As*	Cd*	Ba*	Mo*	Sn*	Sb*	Bi*
BREI-01			52		1025	25.00	34	16	93
BREI-02			11		110	20.00	1	14	138
BREI-03			17		67	24.00	-1	-5	26
BREI-04			-5		79	30.00	1	5	54
BREI-05			-5		490	41.00	14	8	18
NO0010.01	1.0	1.0	4	.9	32	3.00		2	2
NO0010.02	2.0	2.0	2	507.8	12	3.00		2	57
NO0010.03	1.0	6.0	4	328.3	9	5.00		13	72
NO0010.04	1.0	3.0	2	672.3	10	3.00		2	42
NO0010.05	1.0	3.0	2	657.3	10	5.00		16	40

Sample No.	Ga*	S%	V*	Cr*	Mn*	Fe%	Th*	U*	W*
BREI-01	29.00					11.85
BREI-02	5.00					50.00
BREI-03	5.00					47.30
BREI-04	8.00					39.10
BREI-05	14.00					26.40
NO0010.01		.49	1	3	24	.62	2.00	5.00	1
NO0010.02		28.86	8	1	1706	27.57	2.00	5.00	4
NO0010.03		27.88	10	2	1133	30.64	2.00	5.00	2
NO0010.04		31.19	1	1	1676	27.98	2.00	5.00	1
NO0010.05		29.81	2	1	1509	29.18	1.00	5.00	1