Norsk versjon
	THE ORE DATABASE
	Occurence 5026 - 006 Bønskneppen
	(Object Id: 4398) (Last updated: 07.11.2023)

Operations

	From - To	Activity	Comments
	1997 - 1997	Sampling	Company/Institution :NGU

Mineralization

	Era:	Paleozoic	Period:	Ordovician
	Genesis:	Volcex	Form:	Irregular
	Main texture:	Structureless	Min. distribution:	Disseminated (<20 % ore minerals)

Main grain size:

Medium grained (1-3 mm)

Main alteration:

Skarn formation

	Strike/Dip:		Direction:
			Plunge:

Stratigraphic classification of host rock

Era:

Paleozoic

Period:

Ordovician

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

Group:

Aursund

Formation:

Røros

Mineralogy

	Relationship	Mineral	Amount
	Gangue mineral	Quartz	Major mineral (>10%)
	Gangue mineral	Garnet	Subordinate mineral (1-10%)
	Gangue mineral	Biotite	Subordinate mineral (1-10%)
	Gangue mineral	Amphibole	Subordinate mineral (1-10%)
	Ore mineral	Chalcopyrite	Major mineral (>10%)
	Ore mineral	Pyrrhotite	Subordinate mineral (1-10%)
	Ore mineral	Cubanite	Accessory mineral (<1%)
	Ore mineral	Sphalerite	Accessory mineral (<1%)
	Ore mineral	Pyrite	Accessory mineral (<1%)
	Ore mineral	Ilmenite	Accessory mineral (<1%)

Lithology:

	Relationship	Rock	Origin
	Wall rock	Garben schist	Sedimentary Original rock :Greywacke
			Metamorphic facies :Greenschist
	Wall rock	Gabbro	Intrusive Original rock :Gabbro

Structures

	Location:	Type:	Orientation(360 gr.):	Relation to min.:
	Wall rock	Schistosity	Strike/Dip :70 / 7	Post-mineralisation ;...Effect :None

Information(s) in free text format

Free text

En bomvei går fra Grønlivollan ved Reitan-Tydal veien og opp langs vestsida av Bønskneppen. Flere små skjerp og grunne synker ligger i nordøstskråningne av Bønskneppen. Dette er en kobberforekomst men flere prøver fra området er også anriket på gull (opptil 3,6 g/t Au). Aasgaard (1927) beskriver at det skal være drevet på kobberkis-pyritt førende ganger ‘som synes fattige’ på Bønskneppen. Hovedskjerpet er tidligere kallt Bønskneppen III og består av en 1,5 m dyp vannfyllt synk med vegger 3 x 4 m på toppen av en skråning. Kobberkis og magnetkis finnes disseminert og i aggregater i en 20-30 cm bred sulfidsone i granat-amfibol-kvarts-feltspat bergart; garbenskifer. Sulfidene kan dels være anriket langs kvartslinser i denne.

Photo(s) from the Deposit area:

Photo no. 1 showing Bønskneppen III"

Bibliography:

From NGU's Reference Archive:

Aasgaard, Gunnar , 1927

	Gruber og skjerp i kisdraget Øvre Guldal-Tydal.

;Norges geologiske undersøkelse;TIDSSKRIFTARTIKKEL;NGU; No.129;1-196 pages

Abstract:

The occurences described in this paper form a connection between th mining districts around Røros to the south and those around Meråker to the north. The occurences lie in mountain regions partly above the forest line. The list on page 12 contains the names of all known occurrences of whatever size within the district considered. Pl. I is a geological outline map of the district, compiled from maps in the Norwegian Geological Survey. In a geological summary on pages 18-27 it is shown that no pyrite occurrences of economic importance so far have been found in an eastern zone along the Swedish boundary where the rocks consist of hard schist with sparagmites, and igneous rocks. Neither have such occurrences been found in a zone of "Stuedalsskifer" and an other zone of "Gulaskifer" towards west, both indicated on the map. The occurrences of pyrite are chiefly found in connection with fine grained, light green or gravish, partly feldspar bearing schist and in connection with green schists, mostly fine grained hornblende schists. All these zones of schist gnereally strike north and dip west. The pyrite bearing schist lie on both sildes of a large zone of igneous rocks extending from Kjølifjell in the south over Hyllingen and Melshogna to Fangen in the Meråker district in the north.

Fieldsamples

	Sample No.	Sample type	Miscellanrous
	ST0195.03	Dump	Sampler: Sandstad, J.S./...Stored: Løkken/...Size(kg): 2 Comment: cpy agg./diss., rik malm, i granat-amfibol-kvarts/feltspat-biotitt bergart som består av finkornet granat og flere mm lange amfibolnåler i felsisk, dels kalkspatrik, grunnmasse. No. of registrated element analyses = 1
	ST0195.04	Dump	Sampler: Sandstad, J.S./...Stored: Løkken/...Size(kg): 2 Comment: cpy+po diss. i garbenskifer som består av finkornet granat og flere mm lange amfibolnåler i felsisk grunnmasse. No. of registrated element analyses = 1
	399851	Dump	Sampler: MINDEX ASA No. of registrated element analyses = 1

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

Name of Locality: Bønskneppen II

(Object Id: 10001 6,01,00)

Location

County:

Trøndelag

Municipality:

Holtålen (5026)

Map 1:50000:

Ålen (1720-4)

Map 1:250000:

Røros

Coordinate system:

EU89-UTM Zone 32

East:

633711 m.

North:

6967517 m.

Longitude:

11.6235820

Latitude:

62.8133530

Show on map

Resource

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

Resources and production

	Activity:	Pitting	Reserves:
	Operating method:		Historical production:

Operations

	From - To	Activity	Comments
	1997 - 1997	Sampling	Company/Institution :NGU

Mineralogy

	Relationship	Mineral	Amount
	Gangue mineral	Quartz	Major mineral (>10%)
	Gangue mineral	Garnet	Subordinate mineral (1-10%)
	Gangue mineral	Biotite	Subordinate mineral (1-10%)
	Gangue mineral	Amphibole	Subordinate mineral (1-10%)
	Ore mineral	Chalcopyrite	Major mineral (>10%)
	Ore mineral	Pyrite	Subordinate mineral (1-10%)
	Ore mineral	Pyrrhotite	Subordinate mineral (1-10%)
	Ore mineral	Cubanite	Accessory mineral (<1%)
	Ore mineral	Sphalerite	Accessory mineral (<1%)
	Ore mineral	Ilmenite	Accessory mineral (<1%)

Lithology:

	Relationship	Rock	Origin
	Wall rock	Garbenskifer	Sedimentary Original rock :Greywacke
			Metamorphic facies :Greenschist

Structures

	Location:	Type:	Orientation(360 gr.):	Relation to min.:
	Wall rock	Schistosity	Strike/Dip :72 / 20	Post-mineralisation ;...Effect :None

Information(s) in free text format

Free text

Bønskneppen II ligger ca. 100 m nord for hovedskjerpet. En 0,7-0,8 m mektig rustsone som overlagres av garbenskifer finnes i sørveggen av en mindre synk med sidevegger 2 x 3 m. Sulfidsonen består av aggregater og disseminasjon av kobberkis, magnetkis og pyritt i en granat-amfibol rik bergart. Sulfidmineralene er også her anriket kangs få cm brede kvartslinser. Analyse av en rikt mineralisert prøve gir 6,1 % Cu og 3,6 g/t Au.

Photo(s) from the Deposit area:

Photo no. 1 showing Sulfidsona i Bønskneppen II"

Fieldsamples

	Sample No.	Sample type	Miscellanrous
	ST0195.05	Dump	Sampler: Sandstad, J.S./...Stored: Løkken/...Size(kg): 2 Comment: cpy+po agg./diss., rik malm i granat-biotitt-amfibol bergart som består av finkornet granat og lange amfibolnåler i felsisk grunnmasse. No. of registrated element analyses = 1

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

Name of Locality: Bønskneppen I

(Object Id: 10002 6,02,00)

Location

County:

Trøndelag

Municipality:

Holtålen (5026)

Map 1:50000:

Ålen (1720-4)

Map 1:250000:

Røros

Coordinate system:

EU89-UTM Zone 32

East:

633363 m.

North:

6967187 m.

Longitude:

11.6165030

Latitude:

62.8105210

Show on map

Resource

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

Resources and production

	Activity:	Pitting	Reserves:
	Operating method:		Historical production:

Operations

	From - To	Activity	Comments
	1997 - 1997	Sampling	Company/Institution :NGU

Mineralogy

	Relationship	Mineral	Amount
	Gangue mineral	Quartz	Major mineral (>10%)
	Gangue mineral	Garnet	Subordinate mineral (1-10%)
	Gangue mineral	Biotite	Subordinate mineral (1-10%)
	Gangue mineral	Amphibole	Subordinate mineral (1-10%)
	Ore mineral	Chalcopyrite	Major mineral (>10%)
	Ore mineral	Pyrrhotite	Subordinate mineral (1-10%)
	Ore mineral	Ilmenite	Accessory mineral (<1%)
	Ore mineral	Sphalerite	Accessory mineral (<1%)
	Ore mineral	Pyrite	Accessory mineral (<1%)
	Ore mineral	Copper	Accessory mineral (<1%)

Lithology:

	Relationship	Rock	Origin
	Host rock	Kvarts-biotitt-karbonat skifer	Sedimentary Original rock :Greywacke
			Metamorphic facies :Greenschist
	Wall rock	Gabbro	Intrusive Original rock :Gabbro
			Metamorphic facies :Greenschist
	Wall rock	Garbenskifer	Sedimentary Original rock :Greywacke
			Metamorphic facies :Greenschist

Information(s) in free text format

Free text

Bønskneppen I ligger ca. 100 m nordøst for det trigonometriske punktet på Bønskneppen. Skjerpet består av en vannfyllt grop/synk med sidevegger 2 x 3 m. Sulfidmineraliseringen består av svak disseminasjon av kobberkis, pyritt og mindre mengder sinkblende i kvarts-biotitt skifer, rikere disseminasjon av kobberkis-magnetkis i granat-amfibol skifer (garbenskifer) og kobberkis og gedigen kobber i grovkornet kvarts.

Photo(s) from the Deposit area:

Photo no. 1 showing Bønskneppen I"

Fieldsamples

	Sample No.	Sample type	Miscellanrous
	ST0195.01	Dump	Sampler: Sandstad, J.S./...Stored: Løkken/...Size(kg): 2 Comment: cpy+sl+po diss./agg. i granat-kvarts-biotitt/amfibol bergart. No. of registrated element analyses = 1
	ST0195.02	Dump	Sampler: Sandstad, J.S./...Stored: Løkken/...Size(kg): 2 Comment: cpy+Cu diss./strenger i grovkornet, hydrotermal kvarts. No. of registrated element analyses = 1

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

Name of Locality: Bønskneppen IV

(Object Id: 10003 6,03,00)

Location

County:

Trøndelag

Municipality:

Holtålen (5026)

Map 1:50000:

Ålen (1720-4)

Map 1:250000:

Røros

Coordinate system:

EU89-UTM Zone 32

East:

635174 m.

North:

6967747 m.

Longitude:

11.6524280

Latitude:

62.8148780

Show on map

Resource

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

Resources and production

	Activity:	Pitting	Reserves:
	Operating method:		Historical production:

Operations

	From - To	Activity	Comments
	1997 - 1997	Sampling	Company/Institution :NGU

Mineralogy

	Relationship	Mineral	Amount
	Gangue mineral	Quartz	Major mineral (>10%)
	Gangue mineral	Amphibole	Subordinate mineral (1-10%)
	Gangue mineral	Calcite	Subordinate mineral (1-10%)
	Gangue mineral	Garnet	Subordinate mineral (1-10%)
	Ore mineral	Chalcopyrite	Major mineral (>10%)
	Ore mineral	Pyrrhotite	Subordinate mineral (1-10%)
	Ore mineral	Pyrite	Accessory mineral (<1%)
	Ore mineral	Sphalerite	Accessory mineral (<1%)

Lithology:

	Relationship	Rock	Origin
	Wall rock	Amfibol-kvarts skifer	Sedimentary Original rock :Greywacke
			Metamorphic facies :Greenschist

Structures

	Location:	Type:	Orientation(360 gr.):	Relation to min.:
	Wall rock	Foliation	Strike/Dip :125 / 15	Post-mineralisation ;...Effect :None

Information(s) in free text format

Free text

Bønskneppen IV er et mindre skjerp som er utsprengt i en knaus ca. 1,5 km øst for hovedskjerpet. Sulfidmineraliseringen likner den lengre vest og består i hovedsak av kobberkis-magnetkis disseminasjon, aggragater og strenger i en granat-amfibol bergart.Sulfidmineralene er også anriket langs og dels i grovkornet kvartsåre/-gang og i tillegg finnes blokker med massiv magnetkis på tippen.

Photo(s) from the Deposit area:

Photo no. 1 showing Bønskneppen IV"

Fieldsamples

	Sample No.	Sample type	Miscellanrous
	ST0195.06	Dump	Sampler: Sandstad, J.S./...Stored: Løkken/...Size(kg): 2 Comment: cpy+po, fink, diss./agg./strenger i granat-kvarts-amfibol bergart. No. of registrated element analyses = 1
	ST0195.07	Dump	Sampler: Sandstad, J.S./...Stored: Løkken/...Size(kg): 2 Comment: cpy-po agg. i/langs grovkornet kvarts-åre. No. of registrated element analyses = 1
	ST0195.08	Dump	Sampler: Sandstad, J.S./...Stored: Løkken/...Size(kg): 2 Comment: po+cpy, massiv, fink, kalkspatrik matriks. No. of registrated element analyses = 1
	399852	Dump	Sampler: MINDEX ASA No. of registrated element analyses = 1

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

---

Analyse Results

from

Deposit Area 5026 - 006 Bønskneppen

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#
ST0195.01	Dump	19957	2058	8	122	24	5.9	278.0
ST0195.02	Dump	8747	981	13	22	5	3.6	50.0
ST0195.03	Dump	66576	1226	-3	144	132	14.4	848.0
ST0195.04	Dump	36247	860	-3	78	49	8.7	1764.0
ST0195.05	Dump	60890	1780	-3	87	28	20.2	3629.0
ST0195.06	Dump	53430	1360	250	235	112	5.2	747.0
ST0195.07	Dump	16439	484	132	88	42	2.7	100.0
ST0195.08	Dump	3715	740	29	564	326	.3	1081.0
399851	Dump	42000	864	110	114	82	.7	970.0
399852	Dump	36000	613	82	154	78	4.0	538.0

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

Sample No.	Pt#	Pd#	As*	Cd*	Ba*	Mo*	Sb*	Bi*	S%
ST0195.01	-1.0	15.0	-2	10.8	64	3.00	-3	21	5.00
ST0195.02	-1.0	2.0	4	5.9	69	1.00	-3	6	1.15
ST0195.03	-1.0	7.0	2	11.5	76	-1.00	-3	3	7.46
ST0195.04	-1.0	-1.0	3	8.3	113	1.00	3	-3	4.34
ST0195.05	13.0	11.0	2	13.7	120	2.00	3	-3	6.32
ST0195.06	4.0	3.0	-2	2.2	4	2.00	-3	34	8.52
ST0195.07	2.0	2.0	-2	.8	-1	2.00	-3	11	3.74
ST0195.08	3.0	2.0	-2	3.1	6	4.00	-3	49	22.41
399851			3	6.3	28	6.00	3	3
399852			7	.9	3	8.00	3	3

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

Sample No.	V*	Cr*	Mn*	Fe%	Th*	U*	W*	Sr*	La*
ST0195.01	62	73	277	11.06	7.00	-8.00	-2	6.0	15.00
ST0195.02	14	2	49	2.40	2.00	-8.00	-2	4.0	3.00
ST0195.03	39	34	240	11.63	4.00	-8.00	-2	23.0	7.00
ST0195.04	51	42	311	7.55	4.00	-8.00	2	8.0	12.00
ST0195.05	66	70	379	12.80	7.00	-8.00	3	6.0	13.00
ST0195.06	52	36	397	16.94	7.00	-8.00	-2	4.0	7.00
ST0195.07	38	24	136	8.58	4.00	-8.00	-2	3.0	8.00
ST0195.08	16	6	225	35.34	4.00	-8.00	9	20.0	9.00
399851	43	85	196	8.68				17.0	7.00
399852	33	145	268	13.00				4.0	5.00

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

Sample No.	B*	Ti*
ST0195.01	-3
ST0195.02	-3
ST0195.03	3
ST0195.04	-3
ST0195.05	-3
ST0195.06	4
ST0195.07	-3
ST0195.08	-3
399851		240
399852		30

---

The fact sheet was created on 03.05.2024

Questions or comments regarding the fact sheet can be emailed to: ressursdatabaser@ngu.no

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