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THE ORE DATABASE
Occurence 5603 - 030 Vesterdalen
(Object Id: 910)
(Last updated: 19.01.2022)

Location
County: Finnmark Municipality: Hammerfest (5603)
Map 1:50000: Vargsund (1935-4) Map 1:250000: Hammerfest
Coordinate system: EU89-UTM Zone 34
East: 601740 m. North: 7814245 m.
Longitude: 23.7201030 Latitude: 70.4133520
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Resource
Resource Type: Precious metals (Au,Ag,PGE) Resource Subtype: Gold
Element(s): Au Cu
Importance
Raw material meaning: Not Assessed (reg. 20.03.2017)

Resources and production
Activity: Pitting Reserves:
Operating method: Historical production:


Operations
From - To Activity Comments
1966 - 1967 Sampling Company/Institution :Christiania Spigerverk
1967 - 1967 Geology Company/Institution :Christiania Spigerverk
1991 - 1995 Geology Company/Institution :A/S Prospektering

Mineralization
Era: Proterozoic Period: Paleoproterozoic
Genesis: Shear zone formation Form: Lens
Main texture: Fracture filling Min. distribution: Irregular (scattered)
Main grain size: Fine grained (< 1 mm) Main alteration: Chloritisation
Strike/Dip: 255 / 70 Direction:
Plunge:
Stratigraphic classification of host rock
Era: Proterozoic Period: Paleoproterozoic
Province: Caledonian Basement Province
Geotec.unit: Komagfjord-Repparfjord Greenstone Belt
Tectonic complex:
Igneous complex:
Group: Porsa Formation: Vargsund

Mineralogy
Relationship Mineral Amount
Gangue mineral Dolomite Major mineral (>10%)
Gangue mineral Chlorite Subordinate mineral (1-10%)
Gangue mineral Quartz Subordinate mineral (1-10%)
Ore mineral Digenite Major mineral (>10%)
Ore mineral Chalcocite Major mineral (>10%)
Ore mineral Malachite Major mineral (>10%)
Ore mineral Covellite Subordinate mineral (1-10%)
Ore mineral Gold Accessory mineral (<1%)

Lithology:
Relationship Rock Origin
Host rock Klorittskifer Extrusive
Original rock :Basalt
Metamorphic facies :Greenschist
Wall rock Dolomitt Sedimentary
Original rock :Dolomite
Metamorphic facies :Greenschist
Wall rock Grønnstein Extrusive
Original rock :Basalt
Metamorphic facies :Greenschist

Structures
Location: Type: Orientation(360 gr.): Relation to min.:
Host rock Shear plane Strike/Dip :255 / 70

Information(s) in free text format
Free text
Copper mineralisation in the Vesterdalen prospect was discovered in the early 1900s. Several minor exploration campaigns have been carried out due to elevated gold values associated with the copper occurrence, which is hosted by a sequence of impure dolomite and reddish siltstone that overlies greenstones of the Nussir group. The copper occurrence comprises dissemination, aggregates and veinlets, and the copper mineralogy is very complex. Digenite seems to dominate, but bornite, chalcocite, covelline and malachite also occur. Analysed samples yield values in the range of 0.64–9.76 % Cu and 0.2–16.4 g/t Au. In addition, elevated molybdenum contents were found, with 0.9 % Mo as the maximum value. The molybdenum mineral present is powellite. Accessory minerals include brannerite, orthobrannerite and uraninite.

Bibliography:
From NGU's Reference Archive:
Mørch, C.T.; Heiberg, G. , 1908
Indberetning fra bestyrelsen i aktieselskabet Vesterdalens kobbergrubers konkursbo.
;Norges geologiske undersøkelse;RAPPORT;Bergarkivet; No.BA 3488;22 pages
Abstract:
Rapporten beskriver de økonomiske forhold ved gruveselskapet A/S Vesterdalens Kobbergruver fra starten i 1903 til konkursen i 1906. Gruvedriften har foregått i Porsa-feltet. Regnskap over aktiva og passiva er gitt til slutt i rapporten.

Fieldsamples
Sample No. Sample type Miscellanrous
HA-P-016 Bedrock
Sampler: Karlstrøm, H./...Stored: Løkken
No. of registrated element analyses = 1
HA-P-017 Bedrock
Sampler: Karlstrøm, H./...Stored: Løkken
No. of registrated element analyses = 1
V1-2 Dump
Sampler: Pratt & Nielsen/...Size(kg): 1
Comment: Kobbermineralisering i karbonatårer
No. of registrated element analyses = 1
V1-3 Dump
Sampler: Pratt & Nielsen
Comment: Kobbermineralisering i karbonatårer
No. of registrated element analyses = 1
NB! All analyse values are shown at the end of the printout.:

Name of Locality: Vesterdalen
(Object Id: 18105 30,01,00)

Location
County: Finnmark Municipality: Hammerfest (5603)
Map 1:50000: Vargsund (1935-4) Map 1:250000: Hammerfest
Coordinate system: EU89-UTM Zone 34
East: 601899 m. North: 7814149 m.
Longitude: 23.7242330 Latitude: 70.4124280
Show on map

Resource
Resource Type: Precious metals (Au,Ag,PGE) Resource Subtype: Gold
Element(s): Au Cu
Resources and production
Activity: Pitting Reserves:
Operating method: Historical production:


Fieldsamples
Sample No. Sample type Miscellanrous
V2A-1 Dump
Sampler: Pratt & Nielsen
Comment: Kobbermineralisering i karbonatårer
No. of registrated element analyses = 1
V2A-3 Dump
Sampler: Pratt & Nielsen
Comment: Kobbermineralisering i karbonatårer
No. of registrated element analyses = 1
V2A-4 Dump
Sampler: Pratt & Nielsen
Comment: Kobbermineralisering i karbonatårer
No. of registrated element analyses = 1
NB! All analyse values are shown at the end of the printout.:


Analyse Results
from
Deposit Area 5603 - 030 Vesterdalen

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-P-016 Bedrock 99999 577 2 16 5 78.7 10147.0
HA-P-017 Bedrock 49843 124 13 36 17 9.4 1315.0
V1-2 Dump 78903 1 6 14 2 7.8 257.0
V1-3 Dump 50879 3 8 32 13 37.4 1136.0
V2A-1 Dump 83111 3 4 28 32 2.0 185.0
V2A-3 Dump 3241 12 2 17 42 .1 4.0
V2A-4 Dump 3549 19 4 38 84 .8 36.0
------------------
Sample No. Pt# Pd# Rh# As* Cd* Ba* Mo* Sb* Bi*
HA-P-016 1.0 1.0 1.0 7 16.8 26 37.00 2 2
HA-P-017 1.0 2.0 1.0 12 4.7 170 7369.00 2 11
V1-2 1.0 2.0 3.0 7 1.0 153 8.00 3 23
V1-3 1.0 2.0 2.0 6 1.0 352 19.00 3 2
V2A-1 2.0 15.0 2.0 7 2.0 50 24.00 2 9
V2A-3 8.0 7.0 2.0 7 2.0 39 3.00 2 2
V2A-4 9.0 7.0 3.0 6 2.0 84 6.00 2 2
------------------
Sample No. S% V* Cr* Mn* Fe% Th* U* W* Sr*
HA-P-016 8.66 17 7 1568 .35 1.00 5.00 1 120.0
HA-P-017 1.33 17 4 2255 .67 4.00 8.00 2 171.0
V1-2 1.05 7 1 1138 .23 3.00 6.00 1 90.0
V1-3 1.07 23 3 2332 .66 3.00 25.00 1 199.0
V2A-1 10.45 46 18 1422 8.43 1.00 5.00 1 145.0
V2A-3 .16 177 72 244 11.16 2.00 5.00 1 18.0
V2A-4 .15 228 94 447 6.32 3.00 5.00 1 31.0
------------------
Sample No. La* B* Na* Mg* Al* P* K * Ca* Ti*
HA-P-016 2.00 2 0 2 0 0 0 12 0
HA-P-017 3.00 2 0 6 0 0 0 14 0
V1-2 3.00 4 0 6 0 0 0 12 0
V1-3 2.00 2 0 9 0 0 0 17 0
V2A-1 15.00 2 0 2 1 0 0 16 0
V2A-3 7.00 2 0 1 1 0 1 2 1
V2A-4 16.00 3 0 3 2 0 2 4 1


The fact sheet was created on 02.05.2024

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