Fact Sheet for <b>Occurence 5603

					Norsk versjon
	THE ORE DATABASE
	Occurence 5603 - 002 Indrevoll
	(Object Id: 760) (Last updated: 03.02.2005)

Location

County:

Finnmark

Municipality:

Hammerfest (5603)

Map 1:50000:

Repparfjorden (1935-1)

Map 1:250000:

Honningsvåg

Coordinate system:

EU89-UTM Zone 34

East:

624562 m.

North:

7817362 m.

Longitude:

24.3336210

Latitude:

70.4310820

Show on map

Resource

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

Importance

Raw material meaning:

Little Importance (reg. 18.02.2015)

Resources and production

	Activity:	Exploration	Reserves:
	Operating method:		Historical production:

Mineralization

Era: Proterozoic Period: Neoproterozoic

Genesis: Sedex Form: Lens

Main texture: Pore space filling Min. distribution: Disseminated (<20 % ore minerals)

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

Strike/Dip: Direction:

Plunge:

Stratigraphic classification of host rock

Era: Proterozoic Period: Neoproterozoic

Province: Caledonides

Geotec.unit: Platform Supergroup

Tectonic complex:

Igneous complex:

Group: Formation: Lomvann

Mineralogy

Relationship Mineral Amount

Gangue mineral Quartz Major mineral (>10%)

Gangue mineral Feldspar Major mineral (>10%)

Gangue mineral Carbonate Subordinate mineral (1-10%)

Gangue mineral Muscovite Subordinate mineral (1-10%)

Ore mineral Pyrite Major mineral (>10%)

Ore mineral Galena Major mineral (>10%)

Lithology:

Relationship Rock Origin

Host rock Feltspatisk sandstein Sedimentary
Original rock :Arkosic sandstone

Metamorphic facies :Zeolite

Structures

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

Host rock Primary layering Strike/Dip :35 / 70 Post-mineralisation ;...Effect :Modifies

Information(s) in free text format

Free text

Blyglansmineraliseringen opptrer i nedre del av Lomvannformasjonen nord for Raudfjell. En 10 m lang røskegrøft finnes på tvers av strøket. Lomvannformasjonen er svakt metamorfosert men kraftig foldet med åpne til tett folder med NØ-SV orienterte akser. Blyglans finnes disseminert i linseformede lag og i kvartsårer i kvartsittisk og feltspatisk sandstein og dels i konglomerat. De rikeste mineraliseringene er påvist i den 7 m mektige basalsonen. Forekomsten er dannet på tilsvarende måte som de andre fjellkjederandforekomstene, men blygalns er remobilisert inn på kvartsårer i sterkere grad.

Bibliography:

From NGU's Reference Archive:

Pharaoh, Tim C.; Ramsey, Donald; Jansen, Øystein , 1983

Stratigraphy and structure of the northern part of the Repparfjord - Komagfjord window, Finnmark, Northern Norway.

;Norges geologiske undersøkelse;TIDSSKRIFTARTIKKEL;NGU; No.377;1-45 pages

Abstract:

In the northern district of the Repparfjord-Komagfjord Window, supracrustal and intrusive rocks of Early Proterozoic age are unconformably overlain by a thin sequence of Vendian sediments. Both of these units are overthrust by allochthonous rocks of the lavas, tuffs and sediments of the Raipas Supergroup and intrusions of the Raudfjell Suite, regionally metamorphosed at greenschist facies during the polyphase Svecokarelian Orogeny, c. 1840 Ma. The c. 8 km thick supracrustal sequence is divided into four groups and eleven formations on a lithostratigraphic basis. The lithological characteristics of these units are described and compared with rocks of similiar age elsewhere in N. Norway. The stratigraphy and sedimentology of the thin (<200 m thick), autochtonous, Vendian cover sequence is also described. The caledonian Orogeny resulted in complex deformation of the autochtonous cover as well as considerable reactiviation of the underlying basement.

Fieldsamples

Sample No. Sample type Miscellanrous

JS85148 Bedrock

Sampler: Sandstad, J.S.

Comment: blyglans i kvartsårer i sandstein

No. of registrated element analyses = 1

No. of registrated oxide analyses = 1

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

Analyse Results

from

Deposit Area 5603 - 002 Indrevoll

Element analyses
( *=parts pr. million, #=parts pr.billion, Negative values means below detection limit value.)

Sample No. Sample Type Cu* Zn* Pb* Ba* Mo* V* Th*

JS85148 Bedrock 3 40 1395 4060 3.00 39 8.00

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

Sample No. Rb* Sr* Y* Zr* Nb*

JS85148 72.0 50.0 9.0 182 3.00

Oxide analyses
( All values are in % )

Sample No. Sample Type SiO2 Al2O3 TiO2 Fe2O3 MnO MgO CaO

JS85148 Bedrock 85.11 6.99 0.21 0.81 0.02 0.41 0.34

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

Sample No. Na2O K2O P2O5 Loss Sum

JS85148 1.22 3.57 0.01 0.58 99.00

Era:	Proterozoic	Period:	Neoproterozoic
Genesis:	Sedex	Form:	Lens
Main texture:	Pore space filling	Min. distribution:	Disseminated (<20 % ore minerals)

	Province:	Caledonides
	Geotec.unit:	Platform Supergroup
	Tectonic complex:
	Igneous complex:

Relationship	Mineral	Amount
Gangue mineral	Quartz	Major mineral (>10%)
Gangue mineral	Feldspar	Major mineral (>10%)
Gangue mineral	Carbonate	Subordinate mineral (1-10%)
Gangue mineral	Muscovite	Subordinate mineral (1-10%)
Ore mineral	Pyrite	Major mineral (>10%)
Ore mineral	Galena	Major mineral (>10%)

Relationship	Rock	Origin
Host rock	Feltspatisk sandstein	Sedimentary Original rock :Arkosic sandstone
		Metamorphic facies :Zeolite

	Location:	Type:	Orientation(360 gr.):	Relation to min.:
	Host rock	Primary layering	Strike/Dip :35 / 70	Post-mineralisation ;...Effect :Modifies

Sample No.	Sample Type	Cu*	Zn*	Pb*	Ba*	Mo*	V*	Th*
JS85148	Bedrock	3	40	1395	4060	3.00	39	8.00

Sample No.	Sample Type	SiO2	Al2O3	TiO2	Fe2O3	MnO	MgO	CaO
JS85148	Bedrock	85.11	6.99	0.21	0.81	0.02	0.41	0.34