Norsk versjon
THE ORE DATABASE
Occurence 4617 - 012 Vestervika
(Object Id: 4722)
(Last updated: 14.09.2022)

Location
County: Vestland Municipality: Kvinnherad (4617)
Map 1:50000: Varaldsøy (1215-2) Map 1:250000: Bergen
Coordinate system: EU89-UTM Zone 32
East: 328271 m. North: 6667725 m.
Longitude: 5.9101340 Latitude: 60.1104240
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Resource
Resource Type: Base metals (Cu,Zn,Pb,Fe sulphides, As,Sb,Bi,Sn) Resource Subtype: Sulphides
Element(s): Kis
Importance
Raw material meaning: Not Assessed (reg. 18.02.2015)

Resources and production
Activity: Test mining Reserves:
Operating method: Historical production:


Mineralization
Era: Paleozoic Period: Ordovician
Genesis: Volcex Form:
Main texture: Structureless Min. distribution: Disseminated (<20 % ore minerals)
Main grain size: Fine grained (< 1 mm) Main alteration:
Strike/Dip: Direction:
Plunge:
Stratigraphic classification of host rock
Era: Paleozoic Period: Ordovician
Province: Caledonides
Geotec.unit: Hardangerfjord Nappe Complex
Tectonic complex: Varaldsøy Complex
Igneous complex:
Group: Formation:

Mineralogy
Relationship Mineral Amount
Gangue mineral Chlorite Major mineral (>10%)
Gangue mineral Quartz Subordinate mineral (1-10%)
Ore mineral Pyrite Major mineral (>10%)

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

Structures
Location: Type: Orientation(360 gr.): Relation to min.:
Host rock Foliation Strike/Dip :30 / 75 Post-mineralisation ;...Effect :Controls

Information(s) in free text format
Free text
Dette skjerpet befinner seg oppe i lia ca. 125 m over tunnel på Hatlestandvegen. Det består av en 15 m lang stoll med 7-8 m skjæring parallell strøket i grønnskifer som er vertbergarten. Stollen skal ha vært drevet av det engelske selskapet som hadde Valaheien gruver og er således sannsynligvis fra 1860-eller 70-årene. Foliasjonen er 030/75 grader i skiferen. Innerst i stollen er det en ca. 70 cm sone med pyrittimpregnert klorittskifer. Prøver på tipphaugen som for øvrig er temmelig overgrodd består av striper mm-cm mektige med svært finkornet pyritt i klorittskifer.

Bibliography:
From NGU's Reference Archive:
Foslie, Steinar; Dietrichson, Brynjulf , 1955
Kisdistriktet Varaldsøy-Ølve i Hardanger og bergverksdriftens historie.
;Norges geologiske undersøkelse;TIDSSKRIFTARTIKKEL;NGU; No.147;1-106 pages
Abstract:
When Steinar Foslie suddenly passed away in november 1951, he had finished the geological map here presented: "Kisdistriktet Varaldsøy-Ølve i Hardanger", based on field-work during 1942-49. Furthermore his M.S. contained a thorough petrological description of the rocks (p. 1f.) and the history of the copper-mining in the Ølve-district "Christiansgaves (Lilledale) kobberverk" from the two periods 1642-73 and 1759-85, holding a lot of items based on the study of records (p. 55 f.). These M.S. are printed unaltered, introduced by the author's own preface. The paper as a whole must be looked on as a basic draft only: An obviously planned section treating the ore deposits and their mineralogy has not been worked out, yet the facts presented may throw light upon general problems connected with the pyrite-deposits of Norway. As appears from the map the predominant rock in the pyrite-district is greenstone, more or less schistose. The term "greenstone" is here used for basic lavas and tuffs only, while the designation "the greenstone formation" is used by Foslie in the same sense as for the widely extended pyrite-bearing group in the Trondheim-district.

Henriksen, G. , 1908
Utskrift av befaringsprotokol 1907 - 1911. Forekomster av svovlkis ved Fremsteinvik og Vestervik.
;Norges geologiske undersøkelse;FAGRAPPORT;Bergarkivet; No.BA 1481;1 pages
Abstract:
Lok. Nr. 20089, 20283. Ubetydelig mineralisering av kobberholdig svovelkis i skifer.

Fieldsamples
Sample No. Sample type Miscellanrous
VESTERVIKA-01 Dump
Sampler: T. Bjerkgård
Comment: Pyrittstriper i klorittskifer


The fact sheet was created on 27.11.2022

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