Fact Sheet for <b>Occurence 0

					Norsk versjon
	THE ???? DATABASE
	Occurence 0 - 000 FEIL
	(Object Id: ) (Last updated: 18.09.2008)

Location

County:

Municipality:

Mangler ()

Map 1:50000:

Kvikneskogen (1619-4)

Map 1:250000:

Røros

Coordinate system:

UTM-Zone 33 - EUREF89/WGS84

East:

568550 m.

North:

6922530 m.

Longitude:

10.3290030

Latitude:

62.4280250

Show on map

Resource

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

Importance

Raw material meaning:

Little Importance (reg. 18.02.2015)

Resources and production

	Activity:	Pitting	Reserves:
	Operating method:		Historical production:

Operations

From - To Activity Comments

1999 - 1999 Sampling Company/Institution :NGU

Mineralization

Era: Proterozoic Period: Neoproterozoic

Genesis: Volcex Form: Lens

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

Main grain size: Fine grained (< 1 mm) Main alteration: No country rock alteration

Strike/Dip: 340 / 35 Direction:

Plunge:

Stratigraphic classification of host rock

Era: Proterozoic Period: Neoproterozoic

Province: Caledonides

Geotec.unit: Trondheim Nappe Complex

Tectonic complex: Gula Nappe

Igneous complex:

Group: Gula Formation:

Mineralogy

Relationship Mineral Amount

Gangue mineral Quartz Major mineral (>10%)

Gangue mineral Garnet Major mineral (>10%)

Gangue mineral Amphibole Major mineral (>10%)

Ore mineral Pyrrhotite Major mineral (>10%)

Lithology:

Relationship Rock Origin

Wall rock Amphibolite Extrusive
Original rock :Basalt

Metamorphic facies :Amphibolite

Structures

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

Wall rock Schistosity Strike/Dip :326 / 30 Post-mineralisation ;...Effect :Modifies

Wall rock Foliation Strike/Dip :335 / 35 Post-mineralisation ;...Effect :Modifies

Information(s) in free text format

Free text

Forekomsten ligger ca. 100 m nordøst rett nord for Bubakken klebersteinsbrudd. En bomvei fører fra Moen og opp til kleberbruddet som ligger 960 moh. I sulfidskjerpet er det sprengt ut en opptil 3 m høy skjæring med vegger på 2x2 m på sørsida av en mindre nordvest-sørøst orientert rygg. Forekomsten er registrert av Nilsen (1978), men det er ikke kjent når det ble skjerpet i området. Trolig skjedde dette i tilknytning til driften av forekomstene på Børsjøhø. Berggrunnen langs ryggen domineres av middelskornet amfibolitt som dels er granatførende og dels fører smale biotittrike soner. Sulfidmineraliseringen er linseformet og 1-2 m mektig. Den består av semi-massive, dels massive magnetkis bånd i kvartsrikere soner amfibolitten. Sterk til moderat disseminasjon av magnetkis finnes i granatførende amfibolitt som omgir disse båndene. Mineraliseringen er uten økonomisk interesse. Lokalisering sjkket og justert 13.09.2008.

Photo(s) from the Deposit area:

Photo no. 1 showing Gråhø skjerp"

Bibliography:

From NGU's Reference Archive:

Nilsen, Odd , 1978

Caledonian sulphide deposits and minor iron-formations from the southern Trondheim region, Norway.

;Norges geologiske undersøkelse;TIDSSKRIFTARTIKKEL;NGU; No.340;35-85 + k pages

Abstract:

Within the southern and central parts of the Trondheim region of the Norwegian Caledonides a great number of small, stratabound cupriferous pyrite deposits are confined to mafic metavolcanics of the Gula, Støren and Fundsjø Groups of the Lower Palaeozoic succession. The deposits occuring within, or in close contact with the metavolcanics are characterized by their association with minor manganiferous oxide/silicate iron-formations - better known as "vasskis" ore type - within the metamorphic low-grade areas. The iron-fprmations of the metamorphic higher grade terrains on the other hand, which are extensively developed within the Gula Group, are mostly of a pyrrhotitic sulphide/silicate type and sulphurization processes are thought to have played an important role during the metamorphism. The pyrite deposits occurring adjacent to the metavolcanics bear no relationship to the iron-formations. They are embedded in pelitic, often carbonaceous assemblages (Gula Group) or within tuffitic members of the volcanogene Støren Group, and they are thought to represent re-sedimented (reworked) deposits. The pyrite deposits display varying degree of metamorphic reconstitution and a tectonic control has apparently determined their disc- or ruler-shaped morphology.

Fieldsamples

Sample No. Sample type Miscellanrous

HE0170.01 Bedrock

Sampler: J.S. Sandstad/...Stored: Løkken

Comment: Semi-massiv, finkornet magnetkis i kvartsrik grunnmasse

No. of registrated element analyses = 1

HE0170.02 Bedrock

Sampler: J.S. Sandstad/...Stored: Løkken

Comment: Moderat-sterk disseminasjon av magnetkis i granat-amfibolitt

No. of registrated element analyses = 1

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

	From - To	Activity	Comments
	1999 - 1999	Sampling	Company/Institution :NGU

Era:	Proterozoic	Period:	Neoproterozoic
Genesis:	Volcex	Form:	Lens
Main texture:	Banded	Min. distribution:	Semi-massive (20-50 % ore minerals)

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

Relationship	Mineral	Amount
Gangue mineral	Quartz	Major mineral (>10%)
Gangue mineral	Garnet	Major mineral (>10%)
Gangue mineral	Amphibole	Major mineral (>10%)
Ore mineral	Pyrrhotite	Major mineral (>10%)

Relationship	Rock	Origin
Wall rock	Amphibolite	Extrusive Original rock :Basalt
		Metamorphic facies :Amphibolite

Location:	Type:	Orientation(360 gr.):	Relation to min.:
Wall rock	Schistosity	Strike/Dip :326 / 30	Post-mineralisation ;...Effect :Modifies
Wall rock	Foliation	Strike/Dip :335 / 35	Post-mineralisation ;...Effect :Modifies