Fact Sheet for <b>Occurence 4032

					Norsk versjon
	THE ORE DATABASE
	Occurence 4032 - 009 Midtsund
	(Object Id: 5564) (Last updated: 21.04.2008)

Location

County:

Telemark

Municipality:

Fyresdal (4032)

Map 1:50000:

Dalen (1513-4)

Map 1:250000:

Sauda

Coordinate system:

EU89-UTM Zone 32

(Coordinates NOT confirmed)

East:

441019 m.

North:

6574192 m.

Longitude:

7.9642670

Latitude:

59.3024840

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Resource

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

Importance

Raw material meaning:

Not Assessed (reg. 18.02.2015)

Resources and production

	Activity:	Pitting	Reserves:
	Operating method:		Historical production:

Mineralization

Era: Proterozoic Period:

Genesis: Pegmatite formation Form:

Main texture: Min. distribution:

Main grain size: Main alteration:

Strike/Dip: Direction:

Plunge:

Stratigraphic classification of host rock

Era: Proterozoic Period: Mesoproterozoic

Province: South Norwegian Basement Province

Geotec.unit: Telemark Supergroup

Tectonic complex:

Igneous complex:

Group: Bandak Group Formation:

Mineralogy

Relationship Mineral Amount

Gangue mineral Quartz Major mineral (>10%)

Gangue mineral Mica Subordinate mineral (1-10%)

Gangue mineral Feldspar Subordinate mineral (1-10%)

Ore mineral Chalcopyrite Major mineral (>10%)

Ore mineral Bornite Subordinate mineral (1-10%)

Ore mineral Molybdenite Subordinate mineral (1-10%)

Lithology:

Relationship Rock Origin

Host rock Granite pegmatite Intrusive
Original rock :Granite pegmatite

Wall rock Metasandstone Sedimentary
Original rock :Sandstone

Information(s) in free text format

Free text

Dette skjerpet ligger oppe i den bratte lia over Sundsvatn og den nedlagte gården Midtsund. Det ble ikke funnet under befaringen i 2007. Koordinatene er tatt fra Nordrum & Van der Wel, 1981. Beskrivelsen er hentet fra Myhra (1961) som refererer til Bergmesterens befaring i 1882. Forekomsten er en 1 meter bred granittisk pegmatittgang som har øst-vest strøk og nordlig fall. Den er oppgitt til å være parallell med skifrigheten i omgivende skiferbergart. Gangen er grovkornet, er dominert av kvarts, mens glimmer og feltspat er underordnet. Den inneholder noe kobberkis, molybdenglans og bornitt. Funnet ble ansett å være ubetydelig, men mer arbeid ble anbefalt for å blottlegge gangen.

Bibliography:

From NGU's Reference Archive:

Nordrum, F.S.; van der Wel, D. , 1981

Mineral-, stein- og ertsforekomster innen kartblad Sauda M 1:250 000. (Med fargetrykt kart.) Mineral, rock and ore deposits within the map-sheet Sauda (1:250 000).

;Norges geologiske undersøkelse;TIDSSKRIFTARTIKKEL; KARTBESKRIVELSE;NGU; Skrifter; No.366; 34;1-58 + ka pages

Abstract:

The mineral, rock and ore deposits within map-sheet Sauda are described. The most important types are slate and schist, fluorite, and iron-titanium, copper and zinc deposits. Mica, feldspar, soapstone, asbestos, manganese, molybdenum and lead deposits are also present. No significant mining or quarrying activity is in progress at the present time (1978). Most of the occurrences of slate and schist are located within the lower Caledonian thrust zone. The iron-titanium deposits are of magmatic origin and related to mafic intrusives. The fluorite, copper and molybdenum deposits are associated with various stages of hydrothermal activity in Precambrian time. The Sauda zinc deposits occur in metamorphic rocks and have been affected by hydrothermal activity. The lead mineralizations are confined to regions along the eastern border of the Caledonian mountain chain. They are most likely of the same type as the lead deposits occurring along this border elsewhere in Scandinavia.

Myhra, R. , 1961

Kobberforekomster i Veum sokn, Fyridal herred.

;Norges geologiske undersøkelse;FAGRAPPORT;Bergarkivet; No.BA 3388;2 pages

Abstract:

Befaringsrapport fra flere mindre skjerp i området. Kobberkis finnes i kvartsganger i skifer, på en forekomst nevnes også molybdenglans i skiferen. Skjerpene er for små til å ha særlig intresse.

Era:	Proterozoic	Period:
Genesis:	Pegmatite formation	Form:
Main texture:		Min. distribution:

	Province:	South Norwegian Basement Province
	Geotec.unit:	Telemark Supergroup
	Tectonic complex:
	Igneous complex:

Relationship	Mineral	Amount
Gangue mineral	Quartz	Major mineral (>10%)
Gangue mineral	Mica	Subordinate mineral (1-10%)
Gangue mineral	Feldspar	Subordinate mineral (1-10%)
Ore mineral	Chalcopyrite	Major mineral (>10%)
Ore mineral	Bornite	Subordinate mineral (1-10%)
Ore mineral	Molybdenite	Subordinate mineral (1-10%)

Relationship	Rock	Origin
Host rock	Granite pegmatite	Intrusive Original rock :Granite pegmatite
Wall rock	Metasandstone	Sedimentary Original rock :Sandstone

	Abstract:
	Befaringsrapport fra flere mindre skjerp i området. Kobberkis finnes i kvartsganger i skifer, på en forekomst nevnes også molybdenglans i skiferen. Skjerpene er for små til å ha særlig intresse.