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:

571370 m.

North:

6928300 m.

Longitude:

10.3859880

Latitude:

62.4792680

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

1998 - 1998 Sampling Company/Institution :NGU

Mineralization

Era: Proterozoic Period: Neoproterozoic

Genesis: Volcex Form: Lens

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

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

Strike/Dip: 32 / 20 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 Amphibole Major mineral (>10%)

Ore mineral Pyrrhotite Major mineral (>10%)

Ore mineral Magnetite Subordinate mineral (1-10%)

Ore mineral Chalcopyrite Accessory mineral (<1%)

Lithology:

Relationship Rock Origin

Wall rock Quartz mica schist Sedimentary
Original rock :Greywacke

Metamorphic facies :Amphibolite

Wall rock Amphibolite Extrusive
Original rock :Basalt

Metamorphic facies :Amphibolite

Structures

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

Wall rock Foliation Strike/Dip :32 / 20 Post-mineralisation ;...Effect :Modifies

Information(s) in free text format

Free text

Skjerpet ligger nå inne i et hytteområde og trolig under en vei som fører inn til ei hytte som ble bygd i 1988. Vest for veien er en 5 m høy og 7 m lang skjæring hvor bergartene kan studeres, og øst for veien er en kraftig bevokst tipp med sulfidmineraliserte blokker. Nederst i skjæringen finnes en 20-30 cm tykk mineralisert sone som består av disseminasjon av magnetkis og mindre mengder magnetitt i kvarts-amfibol rik grunnmasse. Den overlagres av en amfibolitt som dels er granatrik, med strøk 32°/20°. Over denne følger i veksling kvarts-glimmerskifer og amfibolitt som er sterkt isoklinalt foldet. Stedvis finnes noe rust. På grunn av kraftig overdekke er det ikke mulig å følge den mineraliserte sona videre langs strøket Blokker med semi-massiv magnetkis med kvarts-amfibol rik grunnmasse finnes i tippen (prøve .01) og antaes å representere mineraliseringen i det angitte skjepet. Lokalisering sjekket og justert 11.09.2008.

Photo(s) from the Deposit area:

Photo no. 1 showing Bjørkeng sulfidmineralisering"

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

HE0118.01 Dump

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

Comment: Semi-massiv, finkornet magnetkis med kvarts-amfibol rik matriks

No. of registrated element analyses = 1

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

	From - To	Activity	Comments
	1998 - 1998	Sampling	Company/Institution :NGU

Era:	Proterozoic	Period:	Neoproterozoic
Genesis:	Volcex	Form:	Lens
Main texture:	Structureless	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	Amphibole	Major mineral (>10%)
Ore mineral	Pyrrhotite	Major mineral (>10%)
Ore mineral	Magnetite	Subordinate mineral (1-10%)
Ore mineral	Chalcopyrite	Accessory mineral (<1%)

Relationship	Rock	Origin
Wall rock	Quartz mica schist	Sedimentary Original rock :Greywacke
		Metamorphic facies :Amphibolite
Wall rock	Amphibolite	Extrusive Original rock :Basalt
		Metamorphic facies :Amphibolite

	Location:	Type:	Orientation(360 gr.):	Relation to min.:
	Wall rock	Foliation	Strike/Dip :32 / 20	Post-mineralisation ;...Effect :Modifies