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	THE ORE DATABASE
	Deposit Area 2018 - 002
	(Last updated 11.apr.2007)

Importance

Public:

Little Importance (reg. 18.02.2015)

Economical:

Minor interest , (Confirmed 03.feb.2005 by Peter Ihlen)

Operations

	From - To	Activity	Comments
	1902 - 1902	Pitting
	1989 - 1989	Sampling	Company/Institution :NGU

Mineralization

	Era:	Paleozoic	Period:	Devonian
	Dating:		Method:
	Genesis:	Hydrothermal vein	Form:	Plate
	Main texture:	Fracture filling	Min. distribution:	Semi-massive (20-50 % ore minerals)

Main grain size:

Medium grained (1-3 mm)

Main alteration:

	Strike/Dip:	344 / 70	Direction:
			Plunge:

Stratigraphic classification of host rock

Era:

Proterozoic

Period:

Mesoproterozoic

	Province:	Caledonides
	Geotec.unit:	Kalak Nappe Complex
	Tectonic complex:	Snøfjorddekket
	Igneous complex:

Group:

Formation:

Mineralogy

	Relationship	Mineral	Amount
	Gangue mineral	Quartz	Major mineral (>10%)
	Gangue mineral	Biotite	Subordinate mineral (1-10%)
	Ore mineral	Magnetite	Major mineral (>10%)
	Ore mineral	Pyrite	Accessory mineral (<1%)

Lithology:

	Relationship	Rock	Origin
	Host rock	Granat-biotittgneis	Sedimentary Original rock :Greywacke
			Metamorphic facies :Amphibolite

Structures

	Location:	Type:	Orientation(360 gr.):	Relation to min.:
	Host rock	Joints/Fractures	Strike/Dip :225 / 40	Post-mineralisation ;...Effect :None

Information(s) in free text format

Free text

Forekomsten består av et lite skjerp i en 12 m lang og 2 m bred,steiltstående kvartsgang i flattliggende granat biotittgneis. Magnetitt opptrer som spekkefylling og breksjesement mellom grovkornet kvarts i gangen. Gneisen er bleket i en 20 cm bred randsone med disseminasjon av magnetitt og pyritt rundt gangen.

Bibliography:

From NGU's Reference Archive:

Gayer, R.A.; Hayes, S.J.; Rice, A.H.N. , 1985

	The structural development of the Kalak Nappe Complex of Eastern and Central Porsangerhalvøya, Finnmark, Norway.

;Norges geologiske undersøkelse;TIDSSKRIFTARTIKKEL;NGU Bulletin; No.400;67-87 pages

Abstract:

Lithological and structural mapping of Porsangerhalvøya has revealed eight major thrust units within the Kalak Nappe Complex. Five deformation phases have been recognised: D1 produced a foliation preserved within garnet pophyroblasts which grew during prograde metamorphism. Peak metamorphism occurred during D2 and culminated in upper amphibolite facies in the higher nappes and uppermost greenschist facies in the lower nappes. Staurolite porphyroblasts, pseudomorphed first by muscovite and then by kyanite also developed during prograde metamorphism between D1 and D2. D2 formed tight to isoclinal recumbent folds with an associated axial planar regional schistosity (S2) and mineral lineation as well as boudinage structures. D3 and D4 represent less ductile deformations, with associated retrograde staurolite, chloritoid, garnet and biotite porphyroblastesis. Thrusting, initiated as a ductile process during D2, continued into D4 with a decreasing ductile component, producing major nappe translations and an inverted metamorphic sequence. The metamorphism and associated deformation and thrusting is thought to have occurred during the late Cambrian to earliest Ordovician Finnmarkian orogenic event.

Wennberg, Johan , 1955

	Rapport over befaring av jernmalmforekomst ved Skjerhattevik på halvøya mellom Snøfjord og Revsbotn i Måsøy herred.

;Norges geologiske undersøkelse;FAGRAPPORT;Bergarkivet; No.BA 2118;1 pages

	Abstract:
	Rapporten omhandler befaring av jernmalmforekomsten. En prøve viser 71,2 % Fe tot. Mineraliseringen ligger i gneiser og glimmerskifer som er gjennomsatt av smale kvarts- og pegmatittganger. Den er uten økonomisk interesse,(1955).

Fieldsamples

	Sample No.	Sample type	Miscellanrous
	HO-28-137	Dump	Sampler :Sandstad, J.S./...Stored :Løkken Comment :Quartz vein with magnetite and biotite aggregates. No. of registrated element analyses = 1
	HO-28-138	Dump	Sampler :Sandstad, J.S./...Stored :Løkken Comment :Altered gneiss, yellowish grey, mt and py in aggregates and diss. No. of registrated element analyses = 1

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

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Analyse Results

from

Deposit Area 2018 - 002 Amundvik

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#
HO-28-137	Dump	10	28	22	9	26	.1	2.0
HO-28-138	Dump	11	9	4	4	9	.1	1.0

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Sample No.	Pt#	Pd#	Rh#	As*	Cd*	Ba*	Mo*	Sb*	Bi*
HO-28-137	1.0	2.0	2.0	2	1.0	2	2.00	3	10
HO-28-138	1.0	2.0	2.0	2	1.0	23	2.00	2	2

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Sample No.	S%	V*	Cr*	Mn*	Fe%	Th*	U*	W*	Sr*
HO-28-137	.03	112	44	123	18.93	8.00	5.00	1	5.0
HO-28-138	.06	27	30	36	2.78	15.00	8.00	2	7.0

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Sample No.	La*	B*	Na*	Mg*	Al*	P*	K *	Ca*	Ti*
HO-28-137	10.00	5	0	0	1	0	0	0	0
HO-28-138	13.00	2	0	0	0	0	0	0	0

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The fact sheet was created on 22.11.2024

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

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