Faktarka for Forekomstområde 1920

					English version
	MALMDATABASEN
	Forekomstområde 1920 - 007
	(Sist oppdatert 26.apr.2020)

Navn på deposit area : Rødåsen

(Objekt Id : 1920,007,00,00)

Lokalisering

Fylke :

Troms (19)

Kommune :

Lavangen (1920)

Kart 1:50000:

Salangen (1432-4)

Kart 1:250000:

Narvik

Markeringspunkt:

Lengdegrad:

17.7591800

Breddegrad:

68.8004690

EU89-UTM Zone 33

(Coordinates IS confirmed)

X-koord:

611319 m.

Y-koord:

7634613 m.

Materialtype

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

Production

Activity:	Røsking	Reserves:
Prod. method:		Production:
Prod. status:		Volume of dump:	1 m3

Betydning

Offentlig: Little Importance (reg. 18.02.2015)

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

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: Skarnomvandling

Strike/Dip: 220 / 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 Amphibole Major mineral (>10%)

Gangue mineral Quartz Major mineral (>10%)

Gangue mineral Garnet Major mineral (>10%)

Gangue mineral Biotite Subordinate mineral (1-10%)

Ore mineral Magnetite Major mineral (>10%)

Lithology:

Relationship Rock Origin

Host rock Granatglimmerskifer Sedimentary
Original rock :Argillaceous sediment

Metamorphic facies :Amphibolite

Wall rock Kalkspatmarmor Sedimentary
Original rock :Limestone

Metamorphic facies :Amphibolite

Structures

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

Host rock Foliation Strike/Dip :220 / 20 Post-mineralisation ;...Effect :Modifies

Host rock Primary layering Strike/Dip :220 / 20 Syn-mineralisation ;...Effect :Controls

Opplysning(er) i fritekstformat

Fri tekst

Denne båndete jernformasjonen opptrer i liggen til den marmorhorisonten som er vertsbergart til Gamvik Pb-Zn-mineralisering. Den har utgående i høyde 330 m.o.h., rett på nordsiden av en lite bevokst NØ-SV-gående høyderygg. På stedet er det to små røskegroper med mindre enn 1 m3 tippmateriale. Det er blottlagt bare 0.5 m mektighet av mineraliseringen - sannsynligvis er den noe mer. De øverste 10-20 cm er finkornet granatskarn med magnetittbånd (prøve 03) av få mm mektighet og magnetitt-disseminasjon. Derunder middelskornet, kvartsbåndet magnetitt-mineralisering (01). Mot liggen er den amfibolrik (02). Granatglimmerskifer er heng- og liggbergart. 3-4 m over mineraliseringen er det blottet kalkspatmarmor. Mineraliseringen kan følges med svakt kompassutslag under overdekket terreng noen hundre meter NØ-over mot Rødåsen.

Fieldsamples

Sample No. Sample type Miscellanrous

JSFE1231 Bedrock

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

Kommentar :Banded magnetite-quartz-hornblende mineralisation

No. of registrated element analyses = 1

No. of registrated oxide analyses = 1

JSFE1232 Bedrock

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

Kommentar :Banded garnet-magnetite-quartz mineralisation

No. of registrated element analyses = 1

No. of registrated oxide analyses = 1

JSFE1233 Bedrock

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

Kommentar :Garnetite, fine grained lenses of garnet

No. of registrated element analyses = 1

No. of registrated oxide analyses = 1

TR0445.01 Bedrock

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

Kommentar :Kvartsbåndet mt-min.

No. of registrated element analyses = 1

TR0445.02 Bedrock

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

Kommentar :Amfibolitt med mt.

No. of registrated element analyses = 1

TR0445.03 Bedrock

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

Kommentar :Granat-mt-min.

No. of registrated element analyses = 1

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

Analyse Results

from

Forekomstområde 1920 - 007 Rødåsen

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#

JSFE1231 Bedrock 1 8 2 230 68 .9

JSFE1232 Bedrock 15 18 2 144 62 .3

JSFE1233 Bedrock 12 11 7 242 443 .8

TR0445.01 Bedrock 5 17 -3 11 8 -.3 7.0

TR0445.02 Bedrock 4 36 -3 59 34 -.3 3.0

TR0445.03 Bedrock 6 15 -3 75 163 -.3 12.0

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

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

JSFE1231 5 1 0.40

JSFE1232 3 2 0.60

JSFE1233 9 1 0.90

TR0445.01 -3.0 -3.0 -5.0 4 .7 27 -1.00 7 -2

TR0445.02 -3.0 -3.0 -5.0 9 -.2 31 -1.00 -2 2

TR0445.03 -3.0 -3.0 -5.0 19 -.2 10 -1.00 -2 -2

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

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

JSFE1231 14.20 23 62 1.70 0.20

JSFE1232 13.80 33 3 1.70 0.20

JSFE1233 15.10 17 130 6.00 0.50

TR0445.01 .14 47 13 1797 29.48 2.00 -5.00 2

TR0445.02 .15 46 29 1877 15.70 5.00 -5.00 -2

TR0445.03 .14 47 15 22221 15.18 2.00 -5.00 -2

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

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

JSFE1231 0.8 127.4 31.3 67 4.80 0.20 0.10 6.10 13.50

JSFE1232 1.8 39.5 21.8 54 3.00 0.10 0.05 6.30 11.50

JSFE1233 0.2 82.7 46.6 168 7.40 0.60 0.05 22.80 45.90

TR0445.01 26.0 6.00

TR0445.02 38.0 22.00

TR0445.03 34.0 18.00

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

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

JSFE1231 2.06 11.00 2.87 0.81 4.41 0.71 4.88 1.12 3.02

JSFE1232 1.49 5.70 1.75 0.51 2.70 0.46 3.18 0.69 2.30

JSFE1233 5.37 19.80 3.98 1.30 7.09 1.20 8.03 1.59 4.49

TR0445.01

TR0445.02

TR0445.03

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

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

JSFE1231 0.46 3.21 0.46 1.70

JSFE1232 0.32 2.37 0.40 0.70

JSFE1233 0.64 4.26 0.66 3.70

TR0445.01 -3

TR0445.02 -3

TR0445.03 -3

Oxide analyses
( All values are in % )

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

JSFE1231 Bedrock 29.49 6.01 0.41 37.92 14.19 1.42 6.32

JSFE1232 Bedrock 29.29 3.33 0.30 58.00 5.50 1.40 2.36

JSFE1233 Bedrock 37.84 15.05 0.55 13.17 21.88 1.59 7.08

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

Sample No. Na2O K2O P2O5 Loss Sum

JSFE1231 0.01 0.02 0.55 3.34 100.00

JSFE1232 0.01 0.01 0.37 -0.65 100.00

JSFE1233 0.01 0.01 0.09 3.10 100.00

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	Amphibole	Major mineral (>10%)
Gangue mineral	Quartz	Major mineral (>10%)
Gangue mineral	Garnet	Major mineral (>10%)
Gangue mineral	Biotite	Subordinate mineral (1-10%)
Ore mineral	Magnetite	Major mineral (>10%)

Relationship	Rock	Origin
Host rock	Granatglimmerskifer	Sedimentary Original rock :Argillaceous sediment
		Metamorphic facies :Amphibolite
Wall rock	Kalkspatmarmor	Sedimentary Original rock :Limestone
		Metamorphic facies :Amphibolite

Location:	Type:	Orientation(360 gr.):	Relation to min.:
Host rock	Foliation	Strike/Dip :220 / 20	Post-mineralisation ;...Effect :Modifies
Host rock	Primary layering	Strike/Dip :220 / 20	Syn-mineralisation ;...Effect :Controls

Sample No.	Sample Type	Cu*	Zn*	Pb*	Co*	Ni*	Ag*	Au#
JSFE1231	Bedrock	1	8	2	230	68		.9
JSFE1232	Bedrock	15	18	2	144	62		.3
JSFE1233	Bedrock	12	11	7	242	443		.8
TR0445.01	Bedrock	5	17	-3	11	8	-.3	7.0
TR0445.02	Bedrock	4	36	-3	59	34	-.3	3.0
TR0445.03	Bedrock	6	15	-3	75	163	-.3	12.0

Sample No.	Pt#	Pd#	Rh#	As*	Cd*	Ba*	Mo*	Sb*	Bi*
JSFE1231				5		1	0.40
JSFE1232				3		2	0.60
JSFE1233				9		1	0.90
TR0445.01	-3.0	-3.0	-5.0	4	.7	27	-1.00	7	-2
TR0445.02	-3.0	-3.0	-5.0	9	-.2	31	-1.00	-2	2
TR0445.03	-3.0	-3.0	-5.0	19	-.2	10	-1.00	-2	-2

Sample No.	Ga*	S%	V*	Cr*	Mn*	Fe%	Th*	U*	W*
JSFE1231	14.20		23	62			1.70	0.20
JSFE1232	13.80		33	3			1.70	0.20
JSFE1233	15.10		17	130			6.00	0.50
TR0445.01		.14	47	13	1797	29.48	2.00	-5.00	2
TR0445.02		.15	46	29	1877	15.70	5.00	-5.00	-2
TR0445.03		.14	47	15	22221	15.18	2.00	-5.00	-2

Sample No.	Rb*	Sr*	Y*	Zr*	Nb*	Ta*	Cs*	La*	Ce*
JSFE1231	0.8	127.4	31.3	67	4.80	0.20	0.10	6.10	13.50
JSFE1232	1.8	39.5	21.8	54	3.00	0.10	0.05	6.30	11.50
JSFE1233	0.2	82.7	46.6	168	7.40	0.60	0.05	22.80	45.90
TR0445.01		26.0						6.00
TR0445.02		38.0						22.00
TR0445.03		34.0						18.00

Sample No.	Pr*	Nd*	Sm*	Eu*	Gd*	Tb*	Dy*	Ho*	Er*
JSFE1231	2.06	11.00	2.87	0.81	4.41	0.71	4.88	1.12	3.02
JSFE1232	1.49	5.70	1.75	0.51	2.70	0.46	3.18	0.69	2.30
JSFE1233	5.37	19.80	3.98	1.30	7.09	1.20	8.03	1.59	4.49
TR0445.01
TR0445.02
TR0445.03

Sample No.	Sample Type	SiO2	Al2O3	TiO2	Fe2O3	MnO	MgO	CaO
JSFE1231	Bedrock	29.49	6.01	0.41	37.92	14.19	1.42	6.32
JSFE1232	Bedrock	29.29	3.33	0.30	58.00	5.50	1.40	2.36
JSFE1233	Bedrock	37.84	15.05	0.55	13.17	21.88	1.59	7.08

Sample No.	Na2O	K2O	P2O5	Loss	Sum
JSFE1231	0.01	0.02	0.55	3.34	100.00
JSFE1232	0.01	0.01	0.37	-0.65	100.00
JSFE1233	0.01	0.01	0.09	3.10	100.00