Fact Sheet for Deposit Area 1832

					Norsk versjon
	THE ORE DATABASE
	Deposit Area 1832 - 003
	(Last updated 28.apr.2020)

Name of Deposit Area : Tustervatnet

(Object Id : 1832,003,00,00)

Location

County :

Nordland (18)

Municipality :

Hemnes (1832)

Map 1:50000:

Røssvatnet (1926-1)

Map 1:250000:

Mosjøen

Marking point:

Longitude:

13.8779760

Latitude:

65.8332530

EU89-UTM Zone 33

(Coordinates IS confirmed)

X-coord:

448745 m.

Y-coord:

7301782 m.

Commodity

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

Production

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

Importance

Public: Little Importance (reg. 18.02.2015)

Economical: Minor interest , (Confirmed 25.feb.2005 by Agnes Raaness)

Products

Element/product Crude ore grade or quality

FE_MAG 22 %

FE_TOT 26 %

MNO 2 %

Operations

From - To Activity Comments

1979 - 1980 Geology Company/Institution :Rana Gruber

Mineralization

Era: Proterozoic Period: Mesoproterozoic

Dating: Method:

Genesis: Sedex Form: Layer

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

Main grain size: Coarse grained (> 3 mm) Main alteration:

Strike/Dip: 200 / 60 Direction:

Plunge:

Stratigraphic classification of host rock

Era: Proterozoic Period: Neoproterozoic

Province: Caledonides

Geotec.unit: Helgeland Nappe Complex

Tectonic complex: Tustervatnet thrust sheet

Igneous complex:

Group: Formation:

Mineralogy

Relationship Mineral Amount

Gangue mineral Quartz Major mineral (>10%)

Gangue mineral Amphibole Major mineral (>10%)

Gangue mineral Carbonate Subordinate mineral (1-10%)

Gangue mineral Biotite Subordinate mineral (1-10%)

Ore mineral Magnetite Major mineral (>10%)

Lithology:

Relationship Rock Origin

Unknown Kalkspatmarmor Sedimentary
Original rock :Limestone

Metamorphic facies :Amphibolite

Unknown Hornbl.karb.gl.sk. Extrusive
Original rock :Basalt

Metamorphic facies :Amphibolite

Structures

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

Unknown Primary layering Strike/Dip :200 / 60 Syn-mineralisation ;...Effect :None

Information(s) in free text format

Free text

A 12 km long zone of iron formation has previously been registered from the northern end of Tustervatnet, along the shore at the east side and across the lake to the southwestern shores (e.g. Gjelle et al, 2003). Only at Vallavikneset, by the eastern shore in the middle part of the lake, IF was observed during field work in July 2017. A 5 m wide zone of calcareous amphibole-mica schist occurs between intensely folded and banded marble at Vallavikneset. Magnetite is enriched in cm-thin, massive bands and as dissemination within a one meterthick part of this zone (Samples JS_FE1738-39).

Bibliography:

From NGU's Reference Archive:

Smith-Meyer, Steinulf , 1987

En strukturgeologisk, petrografisk og petrologisk undersøkelse av Tustervatn-området, Nordland.

;UiO Geologisk fellesråd;AVHANDLING

Hillestad, G.; Brækken, H. , 1954

Seismisk grunnundersøkelse Røssåga Kraftanlegg, Tustervatn.

;Norges geologiske undersøkelse;FAGRAPPORT;NGU-rapport; No.129;3 pages

Abstract:

I forbindelse med den påtenkte oppdemming av Røssågas vestre utløp fra Tustervatn, gikk oppgaven ut på å bestemme overdekkets mektighet i et område som var begrenset av en linje 50 meter nedenfor den prosjekterte damakse og en annen linje 50 meter nedenfor denne. Målingene ble utført etter vanlig seismisk refraksjonsmetode. Resultatene av målingene er vist i profiler samt i et nivåkart over det undersøkte område.

Ryssdal, K. , 1965

Jernmalm ved Tustervatnet. Befaring 30/6-65.

;Norges geologiske undersøkelse;FAGRAPPORT;Bergarkivet; No.BA 7517;1 pages

Abstract:

Befaring av jernmalmfunn ved Tustervatn, ca. 10 km. SØ for Bleikvassli. 2 funn av magnetitt, glimmerskifer og karbonat med lave gehalter. Ett funn av rik magnetittmalm antas å være løsblokk. Videre undersøkelser frarådes.

Fieldsamples

Sample No. Sample type Miscellanrous

JS_FE1738 Bedrock

Sampler :J.S. Sandstad

Comment :Semi-massive, magnetite+hematite mineralisation in schist

No. of registrated element analyses = 1

No. of registrated oxide analyses = 1

JS_FE1739 Bedrock

Sampler :J.S. Sandstad

Comment :Semi-massive, fine grained magnetite mineralisation in amphibole-mica schist

No. of registrated element analyses = 1

No. of registrated oxide analyses = 1

NO0051.01 Bedrock

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

Comment :Semimassiv mt-min.

No. of registrated element analyses = 1

NO0051.02 Bedrock

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

Comment :Semimassiv mt-min.

No. of registrated element analyses = 1

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

Name of Locality : Lille Tustervatn NV

(Object Id : 1832,003,01,00)

Location

County : Nordland (18) Municipality : Hemnes (1832)

Map 1:50000: Røssvatnet (1926-1) Map 1:250000: Mosjøen

Marking point: Longitude: 13.7812200 Latitude: 65.8595780

EU89-UTM Zone 33 (Coordinates IS confirmed)

X-coord: 444382 m. Y-coord: 7304798 m.

Commodity

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

Element(s): Fe

Production

Activity: Pitting Reserves:

Prod. method: Production:

Prod. status: Volume of dump:

Name of Locality : Lille Tustervatn NV

(Object Id : 1832,003,02,00)

Location

County : Nordland (18) Municipality : Hemnes (1832)

Map 1:50000: Røssvatnet (1926-1) Map 1:250000: Mosjøen

Marking point: Longitude: 13.7933750 Latitude: 65.8574300

EU89-UTM Zone 33 (Coordinates IS confirmed)

X-coord: 444932 m. Y-coord: 7304548 m.

Commodity

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

Element(s): Fe

Production

Activity: Pitting Reserves:

Prod. method: Production:

Prod. status: Volume of dump:

Name of Locality : Lille Tustervatn NV

(Object Id : 1832,003,03,00)

Location

County : Nordland (18) Municipality : Hemnes (1832)

Map 1:50000: Røssvatnet (1926-1) Map 1:250000: Mosjøen

Marking point: Longitude: 13.8154460 Latitude: 65.8540130

EU89-UTM Zone 33 (Coordinates IS confirmed)

X-coord: 445932 m. Y-coord: 7304148 m.

Commodity

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

Element(s): Fe

Production

Activity: Pitting Reserves:

Prod. method: Production:

Prod. status: Volume of dump:

Name of Locality : 0,5 km NV for Forrhatten

(Object Id : 1832,003,04,00)

Location

County : Nordland (18) Municipality : Hemnes (1832)

Map 1:50000: Røssvatnet (1926-1) Map 1:250000: Mosjøen

Marking point: Longitude: 13.8330700 Latitude: 65.8519050

EU89-UTM Zone 33 (Coordinates IS confirmed)

X-coord: 446732 m. Y-coord: 7303898 m.

Commodity

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

Element(s): Fe

Production

Activity: Pitting Reserves:

Prod. method: Production:

Prod. status: Volume of dump:

Name of Locality : NØ for Forrhatten

(Object Id : 1832,003,05,00)

Location

County : Nordland (18) Municipality : Hemnes (1832)

Map 1:50000: Røssvatnet (1926-1) Map 1:250000: Mosjøen

Marking point: Longitude: 13.8594610 Latitude: 65.8496360

EU89-UTM Zone 33 (Coordinates IS confirmed)

X-coord: 447932 m. Y-coord: 7303623 m.

Commodity

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

Element(s): Fe

Production

Activity: Pitting Reserves:

Prod. method: Production:

Prod. status: Volume of dump:

Name of Locality : 1,5 km SØ for Forrhatten

(Object Id : 1832,003,06,00)

Location

County : Nordland (18) Municipality : Hemnes (1832)

Map 1:50000: Røssvatnet (1926-1) Map 1:250000: Mosjøen

Marking point: Longitude: 13.8798060 Latitude: 65.8352040

EU89-UTM Zone 33 (Coordinates IS confirmed)

X-coord: 448832 m. Y-coord: 7301997 m.

Commodity

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

Element(s): Fe

Production

Activity: Pitting Reserves:

Prod. method: Production:

Prod. status: Volume of dump:

Name of Locality : 1,5 km SØ for Forrhatten

(Object Id : 1832,003,07,00)

Location

County : Nordland (18) Municipality : Hemnes (1832)

Map 1:50000: Røssvatnet (1926-1) Map 1:250000: Mosjøen

Marking point: Longitude: 13.8782380 Latitude: 65.8329550

EU89-UTM Zone 33 (Coordinates IS confirmed)

X-coord: 448756 m. Y-coord: 7301748 m.

Commodity

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

Element(s): Fe

Production

Activity: Pitting Reserves:

Prod. method: Production:

Prod. status: Volume of dump:

Name of Locality : Småfannaholmen

(Object Id : 1832,003,08,00)

Location

County : Nordland (18) Municipality : Hemnes (1832)

Map 1:50000: Røssvatnet (1926-1) Map 1:250000: Mosjøen

Marking point: Longitude: 13.8642610 Latitude: 65.8153500

EU89-UTM Zone 33 (Coordinates IS confirmed)

X-coord: 448082 m. Y-coord: 7299798 m.

Commodity

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

Element(s): Fe

Production

Activity: Pitting Reserves:

Prod. method: Production:

Prod. status: Volume of dump:

Name of Locality : Sørbukta sørstrand

(Object Id : 1832,003,09,00)

Location

County : Nordland (18) Municipality : Hemnes (1832)

Map 1:50000: Røssvatnet (1926-1) Map 1:250000: Mosjøen

Marking point: Longitude: 13.8596370 Latitude: 65.7962480

EU89-UTM Zone 33 (Coordinates IS confirmed)

X-coord: 447832 m. Y-coord: 7297673 m.

Commodity

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

Element(s): Fe

Production

Activity: Pitting Reserves:

Prod. method: Production:

Prod. status: Volume of dump:

Name of Locality : Sør for Storneset

(Object Id : 1832,003,10,00)

Location

County : Nordland (18) Municipality : Hemnes (1832)

Map 1:50000: Røssvatnet (1926-1) Map 1:250000: Mosjøen

Marking point: Longitude: 13.8839580 Latitude: 65.7899220

EU89-UTM Zone 33 (Coordinates IS confirmed)

X-coord: 448932 m. Y-coord: 7296948 m.

Commodity

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

Element(s): Fe

Production

Activity: Pitting Reserves:

Prod. method: Production:

Prod. status: Volume of dump:

Name of Locality : Sør for Skarpvika

(Object Id : 1832,003,11,00)

Location

County : Nordland (18) Municipality : Hemnes (1832)

Map 1:50000: Røssvatnet (1926-1) Map 1:250000: Mosjøen

Marking point: Longitude: 13.9126830 Latitude: 65.7825020

EU89-UTM Zone 33 (Coordinates IS confirmed)

X-coord: 450232 m. Y-coord: 7296098 m.

Commodity

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

Element(s): Fe

Production

Activity: Pitting Reserves:

Prod. method: Production:

Prod. status: Volume of dump:

Analyse Results

from

Deposit Area 1832 - 003 Tustervatnet

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#

JS_FE1738 Bedrock 12 39 3 4 4 3.7

JS_FE1739 Bedrock 17 33 3 6 6 1.6

NO0051.01 Bedrock 15 35 -3 15 64 -.3 3.0

NO0051.02 Bedrock 13 26 -3 4 22 -.3 3.0

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

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

JS_FE1738 -1 187 0.40 1

JS_FE1739 1 277 0.90 1

NO0051.01 -3.0 -3.0 -5.0 10 -.2 220 1.00 -2

NO0051.02 -3.0 -3.0 -5.0 12 1.0 201 1.00 -2

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

Sample No. Bi* Se* Ga* S% V* Cr* Mn* Fe% Th*

JS_FE1738 1.10 9.30 104 3.60

JS_FE1739 -0.50 8.50 87 3.70

NO0051.01 -2 -.01 54 22 2192 20.97 5.00

NO0051.02 -2 .06 51 21 2318 28.85 3.00

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

Sample No. U* W* Rb* Sr* Y* Zr* Nb* Ta* Cs*

JS_FE1738 0.60 -1 19.1 144.9 25.9 107 6.50 0.40 0.60

JS_FE1739 0.60 -1 36.8 182.7 28.3 105 6.40 0.40 1.00

NO0051.01 -5.00 -2 35.0

NO0051.02 -5.00 -2 44.0

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

Sample No. La* Ce* Pr* Nd* Sm* Eu* Gd* Tb* Dy*

JS_FE1738 16.60 37.30 4.31 18.30 4.21 1.01 4.40 0.68 4.38

JS_FE1739 20.10 41.10 4.95 19.80 4.24 1.03 4.54 0.74 4.37

NO0051.01 14.00

NO0051.02 13.00

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

Sample No. Ho* Er* Tm* Yb* Lu* B* Be* Hf*

JS_FE1738 0.93 2.91 0.36 2.57 0.40 -1 2.80

JS_FE1739 1.05 3.23 0.45 3.06 0.49 2 2.60

NO0051.01 -3

NO0051.02 -3

Oxide analyses
( All values are in % )

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

JS_FE1738 Bedrock 48.80 6.24 0.63 34.50 0.11 2.80 3.69

JS_FE1739 Bedrock 49.60 6.88 0.43 33.20 0.11 2.58 3.27

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

Sample No. Na2O K2O P2O5 Loss Sum

JS_FE1738 1.10 0.62 0.48 -0.02 99.00

JS_FE1739 1.16 1.01 0.48 -0.30 98.00

	Element/product	Crude ore grade or quality
	FE_MAG	22 %
	FE_TOT	26 %
	MNO	2 %

	From - To	Activity	Comments
	1979 - 1980	Geology	Company/Institution :Rana Gruber

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

	Province:	Caledonides
	Geotec.unit:	Helgeland Nappe Complex
	Tectonic complex:	Tustervatnet thrust sheet
	Igneous complex:

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

Relationship	Rock	Origin
Unknown	Kalkspatmarmor	Sedimentary Original rock :Limestone
		Metamorphic facies :Amphibolite
Unknown	Hornbl.karb.gl.sk.	Extrusive Original rock :Basalt
		Metamorphic facies :Amphibolite

	Location:	Type:	Orientation(360 gr.):	Relation to min.:
	Unknown	Primary layering	Strike/Dip :200 / 60	Syn-mineralisation ;...Effect :None

	Abstract:
	Befaring av jernmalmfunn ved Tustervatn, ca. 10 km. SØ for Bleikvassli. 2 funn av magnetitt, glimmerskifer og karbonat med lave gehalter. Ett funn av rik magnetittmalm antas å være løsblokk. Videre undersøkelser frarådes.

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

Sample No.	Sample Type	Cu*	Zn*	Pb*	Co*	Ni*	Ag*	Au#
JS_FE1738	Bedrock	12	39	3	4	4		3.7
JS_FE1739	Bedrock	17	33	3	6	6		1.6
NO0051.01	Bedrock	15	35	-3	15	64	-.3	3.0
NO0051.02	Bedrock	13	26	-3	4	22	-.3	3.0

Sample No.	Pt#	Pd#	Rh#	As*	Cd*	Ba*	Mo*	Sn*	Sb*
JS_FE1738				-1		187	0.40	1
JS_FE1739				1		277	0.90	1
NO0051.01	-3.0	-3.0	-5.0	10	-.2	220	1.00		-2
NO0051.02	-3.0	-3.0	-5.0	12	1.0	201	1.00		-2

Sample No.	Bi*	Se*	Ga*	S%	V*	Cr*	Mn*	Fe%	Th*
JS_FE1738		1.10	9.30		104				3.60
JS_FE1739		-0.50	8.50		87				3.70
NO0051.01	-2			-.01	54	22	2192	20.97	5.00
NO0051.02	-2			.06	51	21	2318	28.85	3.00

Sample No.	U*	W*	Rb*	Sr*	Y*	Zr*	Nb*	Ta*	Cs*
JS_FE1738	0.60	-1	19.1	144.9	25.9	107	6.50	0.40	0.60
JS_FE1739	0.60	-1	36.8	182.7	28.3	105	6.40	0.40	1.00
NO0051.01	-5.00	-2		35.0
NO0051.02	-5.00	-2		44.0

Sample No.	La*	Ce*	Pr*	Nd*	Sm*	Eu*	Gd*	Tb*	Dy*
JS_FE1738	16.60	37.30	4.31	18.30	4.21	1.01	4.40	0.68	4.38
JS_FE1739	20.10	41.10	4.95	19.80	4.24	1.03	4.54	0.74	4.37
NO0051.01	14.00
NO0051.02	13.00

Sample No.	Ho*	Er*	Tm*	Yb*	Lu*	B*	Be*	Hf*
JS_FE1738	0.93	2.91	0.36	2.57	0.40		-1	2.80
JS_FE1739	1.05	3.23	0.45	3.06	0.49		2	2.60
NO0051.01						-3
NO0051.02						-3

Sample No.	Sample Type	SiO2	Al2O3	TiO2	Fe2O3	MnO	MgO	CaO
JS_FE1738	Bedrock	48.80	6.24	0.63	34.50	0.11	2.80	3.69
JS_FE1739	Bedrock	49.60	6.88	0.43	33.20	0.11	2.58	3.27

Sample No.	Na2O	K2O	P2O5	Loss	Sum
JS_FE1738	1.10	0.62	0.48	-0.02	99.00
JS_FE1739	1.16	1.01	0.48	-0.30	98.00