Fact Sheet for <b>Occurence 5059

					Norsk versjon
	THE ORE DATABASE
	Occurence 5059 - 027 Fjellslett
	(Object Id: 4342) (Last updated: 13.04.2020)

Location

County:

Trøndelag

Municipality:

Orkland (5059)

Map 1:50000:

Løkken (1521-3)

Map 1:250000:

Trondheim

Coordinate system:

EU89-UTM Zone 32

East:

524740 m.

North:

7000969 m.

Longitude:

9.4907530

Latitude:

63.1371970

Show on map

Resource

	Resource Type:	Base metals (Cu,Zn,Pb,Fe sulphides, As,Sb,Bi,Sn)	Resource Subtype:	Copper
			Element(s):	Kis Cu Zn

Importance

Raw material meaning:

Not Assessed (reg. 18.02.2015)

Resources and production

	Activity:	Test mining	Reserves:
	Operating method:	Open pit and underground mining	Historical production:

Operations

From - To Activity Comments

1983 - 1983 Sampling Company/Institution :K.G. McQueen, Orkla Industrier A/S

Mineralization

Era: Paleozoic Period: Ordovician

Genesis: Volcex Form: Lens

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

Main grain size: Fine grained (< 1 mm) Main alteration: Chloritisation

Strike/Dip: 275 / 65 Direction:

Plunge:

Stratigraphic classification of host rock

Era: Paleozoic Period: Ordovician

Province: Caledonides

Geotec.unit: Trondheim Nappe Complex

Tectonic complex: Støren Nappe

Igneous complex:

Group: Støren Group Formation:

Mineralogy

Relationship Mineral Amount

Gangue mineral Chlorite Major mineral (>10%)

Gangue mineral Actinolite Major mineral (>10%)

Gangue mineral Quartz Major mineral (>10%)

Ore mineral Pyrite Major mineral (>10%)

Ore mineral Chalcopyrite Major mineral (>10%)

Ore mineral Sphalerite Subordinate mineral (1-10%)

Ore mineral Pyrrhotite Accessory mineral (<1%)

Ore mineral Magnetite Accessory mineral (<1%)

Lithology:

Relationship Rock Origin

Wall rock Chert Sedimentary
Original rock :Exhalite

Metamorphic facies :Greenschist

Wall rock Greenschist Extrusive
Original rock :Basalt

Metamorphic facies :Greenschist

Structures

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

Wall rock Foliation Strike/Dip :65 / 80 Post-mineralisation ;...Effect :Modifies

Information(s) in free text format

Free text

Fjellslett ligger i sterkt deformert grønnstein i den øvre sekvensen med grønnstein og er assosiert med blågrå chert og jaspis. Strukturelt under chertlaget opptrer massive sulfider knyttet til en foldeombøyning i en tett foldestruktur. Sulfidene er dels remobilisert og rekrystallisert (McQueen 1983). Stratigrafisk ligger Fjellslett på et høyere nivå enn Dragset som ligger ca 2,4 km lengre øst. Hovedforekomsten består av en dagskjæring med en vannfylt synk og fortsetter videre inn mot en 20-25 m lang stoll med retning 170°. Ved synken er det blottet en mer enn 2 m mektig, gråhvit chert som fører noe pyritt-kobberkis i årer/strenger og tynne bånd. Det ser ut som det har vært grøftet langs strøkretningen til denne chert videre vestover. Grønnskifer som er 1-1,5 m mektig, finnes i stollinngangen. Den ligger over en mer enn 2 m mektig, massiv sulfidsone som domineres av kobberkis og pyritt, og i mindre mengder finnes sinkblende og magnetitt. De vanligste gangmineralene er kvarts, aktinolitt og kloritt.

Bibliography:

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

McQueen, K.G., 1983: The geology, structure and ore petrology of the Dragset sulphide deposit, near Løkken. Report Orkla Industrier A/S (BV 1850)

Fieldsamples

Sample No. Sample type Miscellanrous

JS-M1945 Dump

Sampler: J.S. Sandstad/...Stored: Løkken/...Size(kg): 2

Comment: Massive pyrite-chalcopyrite ore, fine grained

No. of registrated element analyses = 1

JS-M1946 Dump

Sampler: J.S. Sandstad/...Stored: Løkken/...Size(kg): 2

Comment: Pyrite+chalcopyrite lenses in greyish white chert

No. of registrated element analyses = 1

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

Name of Locality: Dagskjæring

(Object Id: 36878 27,01,00)

Location

County: Trøndelag Municipality: Orkland (5059)

Map 1:50000: Løkken (1521-3) Map 1:250000: Trondheim

Coordinate system: EU89-UTM Zone 32

East: 524781 m. North: 7000977 m.

Longitude: 9.4915600 Latitude: 63.1372580

Show on map

Resource

Resource Type: Base metals (Cu,Zn,Pb,Fe sulphides, As,Sb,Bi,Sn) Resource Subtype: Copper

Element(s): Kis Cu

Resources and production

Activity: Pitting Reserves:

Operating method: Historical production:

Mineralogy

Relationship Mineral Amount

Gangue mineral Quartz Major mineral (>10%)

Gangue mineral Actinolite Major mineral (>10%)

Gangue mineral Chlorite Major mineral (>10%)

Gangue mineral Plagioclase Major mineral (>10%)

Ore mineral Sphalerite Major mineral (>10%)

Ore mineral Chalcopyrite Major mineral (>10%)

Ore mineral Pyrite Major mineral (>10%)

Lithology:

Relationship Rock Origin

Wall rock Chert Sedimentary
Original rock :Exhalite

Metamorphic facies :Greenschist

Wall rock Greenschist Extrusive
Original rock :Basalt

Metamorphic facies :Greenschist

Structures

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

Wall rock Foliation Strike/Dip :275 / 65 Post-mineralisation ;...Effect :Modifies

Information(s) in free text format

Free text

En 20 m lang og 1-2 m høy, tilnærmet øst-vest orientert (260°) dagskjæring er anlagt langs en massiv sulfidsone. Skjæringen er i dag for en stor grad gjengrodd, men malmsonen kan observeres i begge ender. En 10 m lang skjæring kan følges inn til østenden av dagskjæringa. Der er det blottet en 1,5 m mektig massiv sulfidsone. I vestveggen overlagres sulfidsona av 1-1,5 m mektig grønnskifer med svak disseminasjon av pyritt. Foliasjonen i grønnskiferen er 275°/65° og over denne ligger en gråhvit chert med svært svak sulfiddisseminasjon. Den er minst 1,5 m mektig. Den massive malmen er båndet og domineres av pyritt og kobberkis, men tynne bånd av sinkblende forkommer også. Kobberkisaggregater er også observert i grovkornet, hydrotermal kvarts på tippen.

Bibliography:

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

McQueen, K.G. 1983: The geology, structure and ore petrology of the Dragset sulphide deposit, Near Løkken. BV 1850, 35s. + vedlegg.

Fieldsamples

Sample No. Sample type Miscellanrous

JS-M1942 Dump

Sampler: J.S. Sandstad/...Stored: Løkken/...Size(kg): 2

Comment: Massive chalcopyrite-pyrite ore, fine grained

No. of registrated element analyses = 1

JS-M1943 Dump

Sampler: J.S. Sandstad/...Stored: Løkken/...Size(kg): 2

Comment: Massive pyrite-chalcopyrite-sphalerite ore, banded

No. of registrated element analyses = 1

JS-M1944 Dump

Sampler: J.S. Sandstad/...Stored: Løkken/...Size(kg): 2

Comment: Chalcopyrite veinlets/aggregates in coarse grained quartz

No. of registrated element analyses = 1

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

Name of Locality: Gråbergstoll

(Object Id: 36879 27,02,00)

Location

County: Trøndelag Municipality: Orkland (5059)

Map 1:50000: Løkken (1521-3) Map 1:250000: Trondheim

Coordinate system: EU89-UTM Zone 32

East: 524917 m. North: 7000994 m.

Longitude: 9.4942650 Latitude: 63.1374010

Show on map

Resource

Resource Type: Base metals (Cu,Zn,Pb,Fe sulphides, As,Sb,Bi,Sn) Resource Subtype: Copper

Element(s): Kis Cu

Resources and production

Activity: Pitting Reserves:

Operating method: Historical production:

Lithology:

Relationship Rock Origin

Wall rock Greenschist Extrusive
Original rock :Basalt

Metamorphic facies :Greenschist

Structures

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

Wall rock Foliation Strike/Dip :85 / 80 Post-mineralisation ;...Effect :None

Information(s) in free text format

Free text

En 15 m lang dagskjæring som er opptil 4 m høy og 2 m bred fører inn til en stoll. Denne er anlagt i lys grågrønn grønnskifer. Tippen har et volum på omkring 250 m3 og er en gråbergstipp. Det er ikke tegn til sulfidmineraliseringer av betydning hverken i driften eller på tippen.

Analyse Results

from

Deposit Area 5059 - 027 Fjellslett

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-M1942 Dump 40700 5400 30 48 58 33.1 281.0

JS-M1943 Dump 63600 15750 60 74 50 55.8 82.0

JS-M1944 Dump 81300 3310 21 10 14 51.4 371.0

JS-M1945 Dump 32600 2930 18 631 27 15.0 257.0

JS-M1946 Dump 2530 2610 7 38 15 1.6 23.0

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

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

JS-M1942 -5.0 6.0 52 18.8 -10 29.70 2 1 3

JS-M1943 -5.0 6.0 52 42.7 10 30.60 2 1 5

JS-M1944 -5.0 3.0 6 12.0 -10 17.00 1 1 1

JS-M1945 -5.0 -1.0 64 8.9 -10 21.80 3 1 2

JS-M1946 -5.0 -1.0 10 7.4 -10 1.53 1 0 1

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

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

JS-M1942 13.00 3.62 0.49 5.63 10.00 148 10 136 38.50

JS-M1943 17.00 4.91 0.46 5.25 10.00 159 8 159 33.80

JS-M1944 19.00 1.18 0.29 1.46 8.90 65 7 196 13.15

JS-M1945 222.00 0.47 0.87 3.24 10.00 4 11 99 34.00

JS-M1946 6.00 0.88 0.12 1.13 7.60 12 15 448 8.83

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

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

JS-M1942 0.02 0.50 -0 0.2 21.7 2.2 3 0.10 -0.05

JS-M1943 0.02 0.40 -0 0.6 8.8 0.9 1 -0.10 -0.05

JS-M1944 0.03 0.20 -0 0.4 3.9 0.6 1 -0.10 -0.05

JS-M1945 0.02 -0.10 -0 0.1 0.3 0.9 1 -0.10 -0.05

JS-M1946 0.03 0.10 -0 0.7 1.9 0.8 1 -0.10 -0.05

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

Sample No. Cs* La* Ce* Li* Be* Na* Mg* Al* P*

JS-M1942 -0.05 -0.50 0.84 1 -0 0 0 0 90

JS-M1943 0.11 -0.50 0.40 1 -0 0 0 0 70

JS-M1944 0.17 -0.50 0.23 1 0 0 0 0 50

JS-M1945 -0.05 -0.50 0.31 0 -0 -0 0 0 20

JS-M1946 0.14 -0.50 0.49 0 -0 0 0 0 70

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

Sample No. K * Ca* Sc* Ti* Te* Hf* Re* Tl*

JS-M1942 0 0 2.20 0 0.16 0.10 15 0

JS-M1943 0 0 1.10 0 0.12 -0.10 19 1

JS-M1944 -0 0 0.40 -0 0.09 -0.10 16 0

JS-M1945 -0 0 0.10 -0 4.48 -0.10 159 0

JS-M1946 0 0 0.30 -0 0.40 -0.10 6 0

	From - To	Activity	Comments
	1983 - 1983	Sampling	Company/Institution :K.G. McQueen, Orkla Industrier A/S

Era:	Paleozoic	Period:	Ordovician
Genesis:	Volcex	Form:	Lens
Main texture:	Banded	Min. distribution:	Massive (>50 % ore minerals)

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

Relationship	Mineral	Amount
Gangue mineral	Chlorite	Major mineral (>10%)
Gangue mineral	Actinolite	Major mineral (>10%)
Gangue mineral	Quartz	Major mineral (>10%)
Ore mineral	Pyrite	Major mineral (>10%)
Ore mineral	Chalcopyrite	Major mineral (>10%)
Ore mineral	Sphalerite	Subordinate mineral (1-10%)
Ore mineral	Pyrrhotite	Accessory mineral (<1%)
Ore mineral	Magnetite	Accessory mineral (<1%)

Relationship	Rock	Origin
Wall rock	Chert	Sedimentary Original rock :Exhalite
		Metamorphic facies :Greenschist
Wall rock	Greenschist	Extrusive Original rock :Basalt
		Metamorphic facies :Greenschist

	Location:	Type:	Orientation(360 gr.):	Relation to min.:
	Wall rock	Foliation	Strike/Dip :65 / 80	Post-mineralisation ;...Effect :Modifies

	Activity:	Pitting	Reserves:
	Operating method:		Historical production:

Sample No.	Sample Type	Cu*	Zn*	Pb*	Co*	Ni*	Ag*	Au#
JS-M1942	Dump	40700	5400	30	48	58	33.1	281.0
JS-M1943	Dump	63600	15750	60	74	50	55.8	82.0
JS-M1944	Dump	81300	3310	21	10	14	51.4	371.0
JS-M1945	Dump	32600	2930	18	631	27	15.0	257.0
JS-M1946	Dump	2530	2610	7	38	15	1.6	23.0

Sample No.	Pt#	Pd#	As*	Cd*	Ba*	Mo*	Sn*	Sb*	Bi*
JS-M1942	-5.0	6.0	52	18.8	-10	29.70	2	1	3
JS-M1943	-5.0	6.0	52	42.7	10	30.60	2	1	5
JS-M1944	-5.0	3.0	6	12.0	-10	17.00	1	1	1
JS-M1945	-5.0	-1.0	64	8.9	-10	21.80	3	1	2
JS-M1946	-5.0	-1.0	10	7.4	-10	1.53	1	0	1

Sample No.	Se*	Ga*	Ge*	In*	S%	V*	Cr*	Mn*	Fe%
JS-M1942	13.00	3.62	0.49	5.63	10.00	148	10	136	38.50
JS-M1943	17.00	4.91	0.46	5.25	10.00	159	8	159	33.80
JS-M1944	19.00	1.18	0.29	1.46	8.90	65	7	196	13.15
JS-M1945	222.00	0.47	0.87	3.24	10.00	4	11	99	34.00
JS-M1946	6.00	0.88	0.12	1.13	7.60	12	15	448	8.83

Sample No.	Th*	U*	W*	Rb*	Sr*	Y*	Zr*	Nb*	Ta*
JS-M1942	0.02	0.50	-0	0.2	21.7	2.2	3	0.10	-0.05
JS-M1943	0.02	0.40	-0	0.6	8.8	0.9	1	-0.10	-0.05
JS-M1944	0.03	0.20	-0	0.4	3.9	0.6	1	-0.10	-0.05
JS-M1945	0.02	-0.10	-0	0.1	0.3	0.9	1	-0.10	-0.05
JS-M1946	0.03	0.10	-0	0.7	1.9	0.8	1	-0.10	-0.05

Sample No.	K *	Ca*	Sc*	Ti*	Te*	Hf*	Re*	Tl*
JS-M1942	0	0	2.20	0	0.16	0.10	15	0
JS-M1943	0	0	1.10	0	0.12	-0.10	19	1
JS-M1944	-0	0	0.40	-0	0.09	-0.10	16	0
JS-M1945	-0	0	0.10	-0	4.48	-0.10	159	0
JS-M1946	0	0	0.30	-0	0.40	-0.10	6	0