Fact Sheet for Deposit Area 441

					Norsk versjon
	THE ORE DATABASE
	Deposit Area 441 - 009
	(Last updated 27.okt.2023)

Name of Deposit Area : Flatskarvåsen

(Object Id : 0441,009,00,00)

Location

County :

Hedmark (04)

Municipality :

Os (Hedmark) (0441)

Map 1:50000:

Dalsbygda (1620-2)

Map 1:250000:

Røros

Marking point:

Longitude:

11.0027880

Latitude:

62.5235590

EU89-UTM Zone 32

(Coordinates IS confirmed)

X-coord:

603084 m.

Y-coord:

6934106 m.

Commodity

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

Production

Activity:	Pitting	Reserves:
Prod. method:		Production:
Prod. status:		Volume of dump:	50 m3

Importance

Public: Little Importance (reg. 18.02.2015)

Economical: Minor interest

Operations

From - To Activity Comments

Pitting Company/Institution :Røros Kobberverk?

1998 - 1998 Sampling Company/Institution :NGU

Mineralization

Era: Paleozoic Period: Ordovician

Dating: Method:

Genesis: Volcex Form: Irregular

Main texture: Vein network Min. distribution: Semi-massive (20-50 % ore minerals)

Main grain size: Very unevenly grained Main alteration: Chloritisation

Strike/Dip: Direction:

Plunge:

Stratigraphic classification of host rock

Era: Paleozoic Period: Ordovician

Province: Caledonides

Geotec.unit: Trondheim Nappe Complex

Tectonic complex:

Igneous complex:

Group: Fundsjø Group Formation:

Mineralogy

Relationship Mineral Amount

Gangue mineral Chlorite Major mineral (>10%)

Gangue mineral Quartz Major mineral (>10%)

Gangue mineral Muscovite Subordinate mineral (1-10%)

Ore mineral Pyrrhotite Major mineral (>10%)

Ore mineral Chalcopyrite Major mineral (>10%)

Ore mineral Pyrite Major mineral (>10%)

Lithology:

Relationship Rock Origin

Wall rock Amphibole-chlorite schist Intrusive
Original rock :Gabbro

Metamorphic facies :Greenschist

Structures

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

Wall rock Foliation Strike/Dip :213 / 76 Post-mineralisation ;...Effect :Controls

Wall rock Fold axis Dir./Plunge :230 / 74 Post-mineralisation ;...Effect :Controls

Information(s) in free text format

Free text

Flatskarvåsen-skjerpene ligger ute på stor åpen torvmyr 1.3 km rett vest for Fredrik IV gruve (HE0137). Det er drevet ned tre grunne synker/groper fordelt på to områder. Den nordligste er 5 m lang og 3 m bred og er vannfylt. To rustsoner sees i nordkanten av gropen, henholdsvis 20 og 50 cm brede. Neste grop ligger ca. 10 m SV for ovenfornevnte og består av en vannfylt 9 m lang og opptil 5 m bred røskegrøft og er antakelig ikke dypere enn 1 m. Tippvolumet ved siden av disse to gropene er beskjedent, ca. 20 m3. Den tredje synken ligger 20 m vest (retning 290 grader) for de to første. Denne består av en vannfylt synk 4x3 m i omriss. Dybden er også her beskjeden, utfra et tippvolum på ca. 30 m3. Mineralisering består av magnetkis, kobberkis og pyritt assosiert med klorittskifer og kvartsbånd/-årer/-slirer. Pyritt opptrer dels som spredte kuber i klorittskiferen, mend rikest mineralisering bestående av uregelemssige aggregater, slirer og årer av kobberkis, magnetkis og pyritt er assosiert med kvarts. Særlig synes mineraliseringen å være rik ved den vestligste synken. Kvartssonene er foldet og dels boudinert og mineraliseringen synes å være anriket i stokkformige linser parallell foldeaksene i området, dvs. mot sørvest. Sidebergart/vertsbergart er en klorittrik amfibolitt, antakelig sterkt deformert metagabbro.

Photo(s) from the Deposit area:

Photo no. 1 showing Skjerpet sett mot øst"

Photo no. 2 showing Skjerpet sett mot nord"

Bibliography:

From NGU's Reference Archive:

Krog, Reidar , 1975

Geokjemiske bekkesedimentundersøkelser Dalsbygda 1974.

;Norges geologiske undersøkelse;FAGRAPPORT;NGU-rapport; No.1294;8 pages

Fieldsamples

Sample No. Sample type Miscellanrous

FLATSKARV-2 Dump

Sampler :T. Bjerkgård

Comment :Chalcopyrite and pyrrhotite in 2 cm quartz band in chlorite schist with some biotite.

Flatskarv-2 Dump

Sampler :T. Bjerkgård

No. of registrated element analyses = 1

HE0154.01 Dump

Sampler :T. Bjerkgård/...Stored :Løkken/...Size(kg) :3

Comment :1-1.5 cm band and unevenly distributed finegrained chalcopyrite-pyrrhotite in quartz. Some pyrite with variable grainsize also occur.

No. of registrated element analyses = 1

HE0154.02 Dump

Sampler :T. Bjerkgård/...Stored :Løkken/...Size(kg) :3

Comment :Irregular network and veinlets of chalcopyrite and pyrrhotite in quartz with chlorite.

No. of registrated element analyses = 1

HE0154.03 Dump

Sampler :T. Bjerkgård/...Stored :Løkken/...Size(kg) :3

Comment :1-3 cm semimassive band of pyrite and chalcopyrite in quartz-layer in chlorite schist. Pyrite occurs in 1-2 mm subhedral cubes.

No. of registrated element analyses = 1

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

Name of Locality : Skjerp 2

(Object Id : 0441,009,01,00)

Location

County : Hedmark (04) Municipality : Os (0441)

Map 1:50000: Dalsbygda (1620-2) Map 1:250000: Røros

Marking point: Longitude: 11.0032480 Latitude: 62.5234620

EU89-UTM Zone 32 (Coordinates IS confirmed)

X-coord: 603108 m. Y-coord: 6934095 m.

Commodity

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

Element(s): Kis Co

Photo(s) from the Deposit area:

Photo no. 1 showing Skjerp 2 sett mot nord"

Fieldsamples

Sample No. Sample type Miscellanrous

FLATSKARV-1 Dump

Sampler :T. Bjerkgård

Comment :Lenses and bands of chalcopyrite and pyrrhotite in quartz

Flatskarv-1 Dump

Sampler :T. Bjerkgård

No. of registrated element analyses = 1

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

Name of Locality : Skjerp 3

(Object Id : 0441,009,02,00)

Location

County : Hedmark (04) Municipality : Os (0441)

Map 1:50000: Dalsbygda (1620-2) Map 1:250000: Røros

Marking point: Longitude: 11.0035640 Latitude: 62.5235390

EU89-UTM Zone 32 (Coordinates IS confirmed)

X-coord: 603124 m. Y-coord: 6934105 m.

Commodity

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

Element(s): Kis Co

Photo(s) from the Deposit area:

Photo no. 1 showing Skjerp 3 sett mot vest"

Fieldsamples

Sample No. Sample type Miscellanrous

FLATSKARV-3 Dump

Sampler :T. Bjerkgård

Comment :Collection of pyrrhotite and chalcopyrite in quartz and chlorite. Some pyrite in up to 2 mm cubes.

Flatskarv-3 Dump

Sampler :T. Bjerkgård

No. of registrated element analyses = 1

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

Name of Locality : Røsk

(Object Id : 0441,009,03,00)

Location

County : Hedmark (04) Municipality : Os (Hedmark) (0441)

Map 1:50000: Dalsbygda (1620-2) Map 1:250000: Røros

Marking point: Longitude: 11.0123050 Latitude: 62.5217520

EU89-UTM Zone 32 (Coordinates IS confirmed)

X-coord: 603580 m. Y-coord: 6933920 m.

Commodity

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

Element(s): Kis

Production

Activity: Pitting Reserves:

Prod. method: Production:

Prod. status: Volume of dump:

Operations

From - To Activity Comments

Pitting Company/Institution :?

1998 - 1998 Inspection Company/Institution :NGU

Mineralogy

Relationship Mineral Amount

Gangue mineral Amphibole Major mineral (>10%)

Gangue mineral Plagioclase Major mineral (>10%)

Gangue mineral Chlorite Major mineral (>10%)

Ore mineral Chalcopyrite Major mineral (>10%)

Ore mineral Pyrrhotite Major mineral (>10%)

Lithology:

Relationship Rock Origin

Wall rock Metagabbro Intrusive
Original rock :Gabbro

Metamorphic facies :Greenschist

Information(s) in free text format

Free text

Liten røsk, ca. 1x1 m i omriss og 0.5 m dyp på nordsiden av Flatskarvåsen. Mineralisering består av meget spredte små aggregater av kobberkis og magnetkis i metagabbro.

Analyse Results

from

Deposit Area 441 - 009 Flatskarvåsen

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#

Flatskarv-1 Dump 22100 73 1 777 91 3.1 906.0

Flatskarv-2 Dump 31600 170 1 278 82 4.7 771.0

Flatskarv-3 Dump 34000 155 2 899 184 6.2 607.0

HE0154.01 Dump 41847 145 -3 1143 195 8.4 4813.0

HE0154.02 Dump 25633 192 4 431 80 3.1 907.0

HE0154.03 Dump 24915 144 5 2824 48 4.5 2376.0

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

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

Flatskarv-1 2.5 .5 88 .5 5 4.52 0 0 0

Flatskarv-2 2.5 5.0 27 .8 30 4.00 0 0 0

Flatskarv-3 2.5 6.0 62 1.4 10 3.77 0 0 1

HE0154.01 -1.0 6.0 97 -.2 7 7.00 27 24

HE0154.02 2.0 -1.0 15 .2 14 10.00 9 26

HE0154.03 5.0 18.0 442 -.2 7 12.00 18 36

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

Sample No. Se* Ga* Ge* In* S% V* Cr* Mn* Fe%

Flatskarv-1 45.00 3.25 0.18 0.47 10.00 23 23 159 17.65

Flatskarv-2 78.00 7.16 0.29 1.18 5.35 81 233 388 13.30

Flatskarv-3 56.00 1.61 0.30 0.69 10.00 12 39 79 27.20

HE0154.01 11 18 110 31.03

HE0154.02 54 209 381 15.31

HE0154.03 21 25 191 19.21

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

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

Flatskarv-1 0.04 0.05 0 0.3 7.7 1.6 1 0.10 0.03

Flatskarv-2 0.06 0.05 0 2.7 15.8 2.6 1 0.10 0.03

Flatskarv-3 0.02 0.05 0 0.5 1.4 0.4 0 0.05 0.03

HE0154.01 2.00 -8.00 4 1.0

HE0154.02 -2.00 -8.00 -2 2.0

HE0154.03 -2.00 -8.00 5 1.0

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

Sample No. Cs* La* Ce* B* Li* Be* Sc* Ti* Te*

Flatskarv-1 0.03 0.25 0.59 1 0 4.00 150 3.02

Flatskarv-2 0.22 0.25 0.54 1 0 15.20 336 3.72

Flatskarv-3 0.03 0.25 0.16 0 0 1.90 54 3.13

HE0154.01 -1.00 36

HE0154.02 -1.00 11

HE0154.03 -1.00 24

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

Sample No. Hf* Re* Tl*

Flatskarv-1 0.05 0 0

Flatskarv-2 0.05 0 0

Flatskarv-3 0.05 0 0

HE0154.01

HE0154.02

HE0154.03

From - To	Activity	Comments
	Pitting	Company/Institution :Røros Kobberverk?
1998 - 1998	Sampling	Company/Institution :NGU

Era:	Paleozoic	Period:	Ordovician
Dating:		Method:
Genesis:	Volcex	Form:	Irregular
Main texture:	Vein network	Min. distribution:	Semi-massive (20-50 % ore minerals)

	Province:	Caledonides
	Geotec.unit:	Trondheim Nappe Complex
	Tectonic complex:
	Igneous complex:

Relationship	Mineral	Amount
Gangue mineral	Chlorite	Major mineral (>10%)
Gangue mineral	Quartz	Major mineral (>10%)
Gangue mineral	Muscovite	Subordinate mineral (1-10%)
Ore mineral	Pyrrhotite	Major mineral (>10%)
Ore mineral	Chalcopyrite	Major mineral (>10%)
Ore mineral	Pyrite	Major mineral (>10%)

Relationship	Rock	Origin
Wall rock	Amphibole-chlorite schist	Intrusive Original rock :Gabbro
		Metamorphic facies :Greenschist

Location:	Type:	Orientation(360 gr.):	Relation to min.:
Wall rock	Foliation	Strike/Dip :213 / 76	Post-mineralisation ;...Effect :Controls
Wall rock	Fold axis	Dir./Plunge :230 / 74	Post-mineralisation ;...Effect :Controls

Sample No.	Sample Type	Cu*	Zn*	Pb*	Co*	Ni*	Ag*	Au#
Flatskarv-1	Dump	22100	73	1	777	91	3.1	906.0
Flatskarv-2	Dump	31600	170	1	278	82	4.7	771.0
Flatskarv-3	Dump	34000	155	2	899	184	6.2	607.0
HE0154.01	Dump	41847	145	-3	1143	195	8.4	4813.0
HE0154.02	Dump	25633	192	4	431	80	3.1	907.0
HE0154.03	Dump	24915	144	5	2824	48	4.5	2376.0

Sample No.	Pt#	Pd#	As*	Cd*	Ba*	Mo*	Sn*	Sb*	Bi*
Flatskarv-1	2.5	.5	88	.5	5	4.52	0	0	0
Flatskarv-2	2.5	5.0	27	.8	30	4.00	0	0	0
Flatskarv-3	2.5	6.0	62	1.4	10	3.77	0	0	1
HE0154.01	-1.0	6.0	97	-.2	7	7.00		27	24
HE0154.02	2.0	-1.0	15	.2	14	10.00		9	26
HE0154.03	5.0	18.0	442	-.2	7	12.00		18	36

Sample No.	Se*	Ga*	Ge*	In*	S%	V*	Cr*	Mn*	Fe%
Flatskarv-1	45.00	3.25	0.18	0.47	10.00	23	23	159	17.65
Flatskarv-2	78.00	7.16	0.29	1.18	5.35	81	233	388	13.30
Flatskarv-3	56.00	1.61	0.30	0.69	10.00	12	39	79	27.20
HE0154.01						11	18	110	31.03
HE0154.02						54	209	381	15.31
HE0154.03						21	25	191	19.21

Sample No.	Th*	U*	W*	Rb*	Sr*	Y*	Zr*	Nb*	Ta*
Flatskarv-1	0.04	0.05	0	0.3	7.7	1.6	1	0.10	0.03
Flatskarv-2	0.06	0.05	0	2.7	15.8	2.6	1	0.10	0.03
Flatskarv-3	0.02	0.05	0	0.5	1.4	0.4	0	0.05	0.03
HE0154.01	2.00	-8.00	4		1.0
HE0154.02	-2.00	-8.00	-2		2.0
HE0154.03	-2.00	-8.00	5		1.0