Fact Sheet for <b>Occurence 5601 - 018 Synnøvselvdalen</b>

					Norsk versjon
	THE ORE DATABASE
	Occurence 5601 - 018 Synnøvselvdalen
	(Object Id: 814) (Last updated: 10.04.2007)

Location

County:

Finnmark

Municipality:

Alta (5601)

Map 1:50000:

Vargsund (1935-4)

Map 1:250000:

Hammerfest

Coordinate system:

EU89-UTM Zone 34

East:

592024 m.

North:

7797431 m.

Longitude:

23.4426140

Latitude:

70.2664250

Show on map

Resource

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

Importance

Raw material meaning:

Little Importance (reg. 18.02.2015)

Resources and production

	Activity:	Pitting	Reserves:
	Operating method:		Historical production:	,02 thousand tons

Operations

From - To Activity Comments

Geology

Mineralization

Era: Paleozoic Period: Devonian

Genesis: Shear zone formation Form: Plate

Main texture: Fracture filling Min. distribution: Massive (>50 % ore minerals)

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

Strike/Dip: 139 / 30 Direction:

Plunge:

Stratigraphic classification of host rock

Era: Proterozoic Period: Paleoproterozoic

Province: Caledonides

Geotec.unit: Kalak Nappe Complex

Tectonic complex: Skillefjorddekket

Igneous complex:

Group: Formation:

Mineralogy

Relationship Mineral Amount

Gangue mineral Quartz Major mineral (>10%)

Gangue mineral Carbonate Major mineral (>10%)

Gangue mineral Chlorite Subordinate mineral (1-10%)

Ore mineral Hematite Major mineral (>10%)

Ore mineral Malachite Subordinate mineral (1-10%)

Ore mineral Magnetite Subordinate mineral (1-10%)

Ore mineral Chalcopyrite Subordinate mineral (1-10%)

Lithology:

Relationship Rock Origin

Host rock Grønnstein Extrusive
Original rock :Basalt

Metamorphic facies :Greenschist

Structures

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

Host rock Shear plane Strike/Dip :189 / 35 Syn-mineralisation ;...Effect :Controls

Information(s) in free text format

Free text

Forekomsten omfatter 4 røsker hvor den største er 1-2 m bred og 8 m lang. Den ligger 175 m fra sørvestre Eielborgvatn (293 moh.) og rett sør for sørøstre enden av vatnet. Sterkt skifrig/foliert grønnstein av tidlig proterozoisk alder utgjør vertsbergarten som er mineralisert over en lengde av ca. 100 m i N-S-retning. Mineraliseringen er konsentrert til en flattliggende (15-30°) og omtrent metertykk sone som har et buktende forløp. Mineraliseringen består av flere parallelle 1-100 mm brede årer og ganger av hematitt, magnetitt, kobberkis, karbonat med brun forvitringshud og/eller kvarts som er orientert konkordant eller subkonkordant med foliasjonen/skifrigheten i grønnsteinen. Partvis fører den disseminasjon og tverrgående tensjonssprekker med Fe-oksyder og kobberkis. De bredeste oksydårene langs foliasjonen fører alle fragmenter av sidesteinen. Mineraliseringens alder er usikker, men antas knyttet til den kaledonske dekketektonikk.

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.

Jansen, Øystein J. , 1976

Strukturell og metamorf utvikling i den vestlige del av Komagfjordvinduet og overliggende dekker.

;UiB Geologisk inst. Avd. A;AVHANDLING

Fieldsamples

Sample No. Sample type Miscellanrous

HA-10-23 Bedrock

Sampler: Ihlen, P.M.

Comment: Samleprøve tilsvarende 10-24 og -25.

No. of registrated element analyses = 1

HA-10-24 Bedrock

Sampler: Ihlen, P.M.

Comment: 1-2 cm bred hematitt-karbonatåre i skifrig karbonatåret grønnstein. Malmåren fører 1-5 mm grå fragmenter og inneholder striper og stikk av kobberkis.

No. of registrated element analyses = 1

HA-10-25 Bedrock

Sampler: Ihlen, P.M.

Comment: 1 cm brede hematitt-karbonatårer med disseminert kobberkis. Årene fører druserom belagt med hematittkrystaller.

No. of registrated element analyses = 1

HA-10-26 Bedrock

Sampler: Ihlen, P.M.

Comment: 1-3 cm bred hematittsementert gang med diss. av kobberkis-korn og -aggregater. Åren opptrer i en grålig finkornet sone i grønnsteinen, og inneholder avlange fragmenter av sidesteinen.

No. of registrated element analyses = 1

HA-10-27 Bedrock

Sampler: Ihlen, P.M.

Comment: 1 cm bred hematittåre med litt diss. kobberkis som opptrer i skifrig karbonat-året grønnstein.

No. of registrated element analyses = 1

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

Analyse Results

from

Deposit Area 5601 - 018 Synnøvselvdalen

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#

HA-10-23 Bedrock 7151 24 2 18 56 1.1 15.0

HA-10-24 Bedrock 7581 22 2 15 50 1.2 10.0

HA-10-25 Bedrock 7538 29 4 81 85 1.1 7.0

HA-10-26 Bedrock 899 4 3 5 18 .4 5.0

HA-10-27 Bedrock 5305 46 4 44 132 .9 11.0

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

Sample No. Pt# Pd# Rh# As* Cd* Ba* Mo* Sb* Bi*

HA-10-23 3.0 8.0 2.0 4 .4 28 1.00 2 2

HA-10-24 2.0 7.0 2.0 8 .2 25 1.00 2 2

HA-10-25 4.0 10.0 2.0 7 .7 134 1.00 2 2

HA-10-26 2.0 6.0 2.0 4 .2 12 1.00 2 2

HA-10-27 11.0 11.0 2.0 13 .8 20 1.00 2 2

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

Sample No. S% V* Cr* Mn* Fe% Th* U* W* Sr*

HA-10-23 .56 89 309 391 7.23 1.00 5.00 1 30.0

HA-10-24 .71 79 310 204 6.80 1.00 5.00 1 10.0

HA-10-25 .81 112 259 482 9.23 1.00 5.00 1 22.0

HA-10-26 .04 179 236 40 13.32 1.00 5.00 2 1.0

HA-10-27 .21 146 502 443 9.75 2.00 5.00 2 13.0

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

Sample No. La* B* Na* Mg* Al* P* K * Ca* Ti*

HA-10-23 2.00 2 0 1 1 0 0 3 0

HA-10-24 2.00 2 0 1 0 0 0 1 0

HA-10-25 2.00 2 0 1 1 0 1 3 0

HA-10-26 2.00 2 0 0 0 0 0 0 0

HA-10-27 2.00 2 0 2 1 0 0 1 0

Era:	Paleozoic	Period:	Devonian
Genesis:	Shear zone formation	Form:	Plate
Main texture:	Fracture filling	Min. distribution:	Massive (>50 % ore minerals)

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

Relationship	Mineral	Amount
Gangue mineral	Quartz	Major mineral (>10%)
Gangue mineral	Carbonate	Major mineral (>10%)
Gangue mineral	Chlorite	Subordinate mineral (1-10%)
Ore mineral	Hematite	Major mineral (>10%)
Ore mineral	Malachite	Subordinate mineral (1-10%)
Ore mineral	Magnetite	Subordinate mineral (1-10%)
Ore mineral	Chalcopyrite	Subordinate mineral (1-10%)

Relationship	Rock	Origin
Host rock	Grønnstein	Extrusive Original rock :Basalt
		Metamorphic facies :Greenschist

	Location:	Type:	Orientation(360 gr.):	Relation to min.:
	Host rock	Shear plane	Strike/Dip :189 / 35	Syn-mineralisation ;...Effect :Controls

Sample No.	Sample Type	Cu*	Zn*	Pb*	Co*	Ni*	Ag*	Au#
HA-10-23	Bedrock	7151	24	2	18	56	1.1	15.0
HA-10-24	Bedrock	7581	22	2	15	50	1.2	10.0
HA-10-25	Bedrock	7538	29	4	81	85	1.1	7.0
HA-10-26	Bedrock	899	4	3	5	18	.4	5.0
HA-10-27	Bedrock	5305	46	4	44	132	.9	11.0

Sample No.	Pt#	Pd#	Rh#	As*	Cd*	Ba*	Mo*	Sb*	Bi*
HA-10-23	3.0	8.0	2.0	4	.4	28	1.00	2	2
HA-10-24	2.0	7.0	2.0	8	.2	25	1.00	2	2
HA-10-25	4.0	10.0	2.0	7	.7	134	1.00	2	2
HA-10-26	2.0	6.0	2.0	4	.2	12	1.00	2	2
HA-10-27	11.0	11.0	2.0	13	.8	20	1.00	2	2

Sample No.	S%	V*	Cr*	Mn*	Fe%	Th*	U*	W*	Sr*
HA-10-23	.56	89	309	391	7.23	1.00	5.00	1	30.0
HA-10-24	.71	79	310	204	6.80	1.00	5.00	1	10.0
HA-10-25	.81	112	259	482	9.23	1.00	5.00	1	22.0
HA-10-26	.04	179	236	40	13.32	1.00	5.00	2	1.0
HA-10-27	.21	146	502	443	9.75	2.00	5.00	2	13.0