Fact Sheet for <b>Occurence 5059

					Norsk versjon
	THE ORE DATABASE
	Occurence 5059 - 040 Gunna
	(Object Id: 4528) (Last updated: 13.04.2020)

Location

County:

Trøndelag

Municipality:

Orkland (5059)

Map 1:50000:

Hølonda (1521-2)

Map 1:250000:

Trondheim

Coordinate system:

EU89-UTM Zone 32

East:

536997 m.

North:

6994305 m.

Longitude:

9.7323480

Latitude:

63.0763360

Show on map

Resource

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

Importance

Raw material meaning:

Not Assessed (reg. 18.02.2015)

Resources and production

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

Operations

From - To Activity Comments

1984 - 1984 Geology Company/Institution :NTH

Siv Kjeldsen, diplomoppgave

Mineralization

Era: Paleozoic Period: Ordovician

Genesis: Volcex Form: Lens

Main texture: Structureless Min. distribution: Disseminated (<20 % ore minerals)

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

Igneous complex:

Group: Støren Group Formation:

Mineralogy

Relationship Mineral Amount

Gangue mineral Chlorite Major mineral (>10%)

Gangue mineral Epidote Major mineral (>10%)

Gangue mineral Plagioclase Subordinate mineral (1-10%)

Gangue mineral Quartz Subordinate mineral (1-10%)

Gangue mineral Actinolite Subordinate mineral (1-10%)

Ore mineral Chalcopyrite Major mineral (>10%)

Ore mineral Pyrrhotite Major mineral (>10%)

Ore mineral Pyrite Subordinate mineral (1-10%)

Ore mineral Cobaltite Accessory mineral (<1%)

Lithology:

Relationship Rock Origin

Host rock Metagabbro Intrusive
Original rock :Gabbro

Metamorphic facies :Greenschist

Host rock Greenstone Extrusive
Original rock :Basalt

Metamorphic facies :Greenschist

Information(s) in free text format

Free text

Forekomsten ligger i nordvestskråningen av Grefstofjellet (Grefstadfjellet), ca. 800 m sør for SV-enden av Frilsjøen. Skjerpet er sprengt ut i en lengde av 12 m og i en bredde omkring 3-4 m på NV-siden av en knaus. Sideveggene er opptil 10 m høye. Nord for skjerpet ligger en tipp med volum ca. 400 m3. Sulfidmineraliseringen opptrer langs en uregelmessig kontakt mellom finkornet grønnstein og mer middels- til grovkornet metagabbro (metadoleritt). Vertsbergartene er dels epidot- og kloritt-omvandlet. Magnetkis, kobberkis og mindre mengder pyritt opptrer disseminert og i tynne årer innenfor 1-2 m brede, uregelmessige linser i skjerpet. En massiv sulfidsone/- åre som er minst 10 cm mektig finnes også. Denne sonen er også anriket på kobolt.

Bibliography:

From NGU's Reference Archive:

Kjeldsen, Siv , 1984

En undersøkelse av sulfidmineraliseringer i Grefstadfjell og Resfjellområdene, Løkkenfeltet.

;NTH Bergavd.;AVHANDLING

Fieldsamples

Sample No. Sample type Miscellanrous

JS-M1901 Dump

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

Comment: Massive pyrrhotite-chalcopyrite+pyrite

No. of registrated element analyses = 1

JS-M1902 Dump

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

Comment: Pyrrhotite-chalcopyrite dissemination/veinlets in dark green quartz-chlorite rock

No. of registrated element analyses = 1

JS-M1903 Dump

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

Comment: Pyrrhotite dissemination in chlorite rock

No. of registrated element analyses = 1

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

Analyse Results

from

Deposit Area 5059 - 040 Gunna

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-M1901 Dump 28900 318 3 1100 145 3.7 55.0

JS-M1902 Dump 8730 253 1 338 95 1.3 24.0

JS-M1903 Dump 657 166 -1 82 125 .1 1.0

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

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

JS-M1901 -5.0 2.0 845 6.9 10 1.83 1 1 1

JS-M1902 -5.0 -1.0 286 1.5 -10 0.55 1 1 0

JS-M1903 -5.0 -1.0 39 .3 -10 0.13 1 1 0

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

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

JS-M1901 72.00 14.65 0.28 1.19 10.00 152 60 539 30.60

JS-M1902 24.00 20.60 0.42 0.87 7.52 302 10 2360 23.80

JS-M1903 12.00 23.40 0.39 0.10 4.18 250 520 2380 22.00

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

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

JS-M1901 0.08 -0.10 17 0.2 190.5 3.1 3 0.30 -0.05

JS-M1902 0.16 0.10 2 0.1 34.6 30.4 10 3.70 0.25

JS-M1903 0.08 -0.10 1 0.1 84.7 16.9 5 0.60 0.10

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

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

JS-M1901 0.11 0.90 2.27 4 0 0 1 4 60

JS-M1902 0.16 2.80 10.25 15 0 0 5 6 1390

JS-M1903 0.22 2.00 6.39 18 0 0 6 8 230

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

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

JS-M1901 -0 4 10.40 0 1.71 0.10 7 0

JS-M1902 -0 2 15.70 1 0.46 0.50 -2 -0

JS-M1903 -0 2 31.90 0 0.06 0.30 2 -0

From - To	Activity	Comments
1984 - 1984	Geology	Company/Institution :NTH
		Siv Kjeldsen, diplomoppgave

Era:	Paleozoic	Period:	Ordovician
Genesis:	Volcex	Form:	Lens
Main texture:	Structureless	Min. distribution:	Disseminated (<20 % 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	Epidote	Major mineral (>10%)
Gangue mineral	Plagioclase	Subordinate mineral (1-10%)
Gangue mineral	Quartz	Subordinate mineral (1-10%)
Gangue mineral	Actinolite	Subordinate mineral (1-10%)
Ore mineral	Chalcopyrite	Major mineral (>10%)
Ore mineral	Pyrrhotite	Major mineral (>10%)
Ore mineral	Pyrite	Subordinate mineral (1-10%)
Ore mineral	Cobaltite	Accessory mineral (<1%)

Relationship	Rock	Origin
Host rock	Metagabbro	Intrusive Original rock :Gabbro
		Metamorphic facies :Greenschist
Host rock	Greenstone	Extrusive Original rock :Basalt
		Metamorphic facies :Greenschist

Sample No.	Sample Type	Cu*	Zn*	Pb*	Co*	Ni*	Ag*	Au#
JS-M1901	Dump	28900	318	3	1100	145	3.7	55.0
JS-M1902	Dump	8730	253	1	338	95	1.3	24.0
JS-M1903	Dump	657	166	-1	82	125	.1	1.0

Sample No.	Pt#	Pd#	As*	Cd*	Ba*	Mo*	Sn*	Sb*	Bi*
JS-M1901	-5.0	2.0	845	6.9	10	1.83	1	1	1
JS-M1902	-5.0	-1.0	286	1.5	-10	0.55	1	1	0
JS-M1903	-5.0	-1.0	39	.3	-10	0.13	1	1	0

Sample No.	Se*	Ga*	Ge*	In*	S%	V*	Cr*	Mn*	Fe%
JS-M1901	72.00	14.65	0.28	1.19	10.00	152	60	539	30.60
JS-M1902	24.00	20.60	0.42	0.87	7.52	302	10	2360	23.80
JS-M1903	12.00	23.40	0.39	0.10	4.18	250	520	2380	22.00

Sample No.	Th*	U*	W*	Rb*	Sr*	Y*	Zr*	Nb*	Ta*
JS-M1901	0.08	-0.10	17	0.2	190.5	3.1	3	0.30	-0.05
JS-M1902	0.16	0.10	2	0.1	34.6	30.4	10	3.70	0.25
JS-M1903	0.08	-0.10	1	0.1	84.7	16.9	5	0.60	0.10

Sample No.	Cs*	La*	Ce*	Li*	Be*	Na*	Mg*	Al*	P*
JS-M1901	0.11	0.90	2.27	4	0	0	1	4	60
JS-M1902	0.16	2.80	10.25	15	0	0	5	6	1390
JS-M1903	0.22	2.00	6.39	18	0	0	6	8	230

Sample No.	K *	Ca*	Sc*	Ti*	Te*	Hf*	Re*	Tl*
JS-M1901	-0	4	10.40	0	1.71	0.10	7	0
JS-M1902	-0	2	15.70	1	0.46	0.50	-2	-0
JS-M1903	-0	2	31.90	0	0.06	0.30	2	-0