Fact Sheet for <b>Occurence 4617 - 020 Roaldstveit</b>

					Norsk versjon
	THE ORE DATABASE
	Occurence 4617 - 020 Roaldstveit
	(Object Id: 4770) (Last updated: 24.08.2023)

Location

County:

Vestland

Municipality:

Kvinnherad (4617)

Map 1:50000:

Fusa (1215-3)

Map 1:250000:

Bergen

Coordinate system:

EU89-UTM Zone 32

East:

321767 m.

North:

6658255 m.

Longitude:

5.8015730

Latitude:

60.0227440

Show on map

Resource

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

Importance

Raw material meaning:

Not Assessed (reg. 18.02.2015)

Resources and production

	Activity:	Pitting	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%)

Ore mineral Chalcopyrite Subordinate mineral (1-10%)

Lithology:

Relationship Rock Origin

Host rock Greenschist Extrusive
Original rock :Tuff

Metamorphic facies :Greenschist

Structures

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

Host rock Foliation Strike/Dip :25 / 60 Post-mineralisation ;...Effect :Controls

Information(s) in free text format

Free text

Ca. 100 m ovenfor og vest for gården Roaldstveit er det et lite skjerp. Det er mer en røsk, 2x2 m og 1 m dypt i kant av en skrent. Det er en ca. 1 m mektig sone som består av mørk grønn kloritt med noe kvarts og som dels inneholder rik impregnasjon av finkornet pyritt (< 1 mm) i form av 1-2 mm striper. Lokalt er det også noe kobberkis. Mineraliseringen har likhetstrekk med Løkke-forekomstene lenger mot nordøst i samme strøkretning. Foliasjon/strøk i skjerpet er 025 grader med fall 60 grader mot sørøst.

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.

Fieldsamples

Sample No. Sample type Miscellanrous

ROALDSTVEIT-01 Dump

Sampler: T. Bjerkgård

Comment: Pyritt og kobberkis i kloritt (samleprøve fra tippen).

No. of registrated element analyses = 1

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

Analyse Results

from

Deposit Area 4617 - 020 Roaldstveit

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#

ROALDSTVEIT-01 Dump 16800 231 120 234 15 10.8 201.0

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

Sample No. As* Cd* Ba* Mo* Sn* Sb* Bi* Se* Ga*

ROALDSTVEIT-01 28 .6 40 1.94 4 0 9 136.00 9.64

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

Sample No. Ge* In* S% V* Cr* Mn* Fe% Th* U*

ROALDSTVEIT-01 0.50 3.76 9.99 196 11 1230 21.40 0.21 0.20

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

Sample No. W* Rb* Sr* Y* Zr* Nb* Ta* Cs* La*

ROALDSTVEIT-01 0 6.9 22.4 13.2 5 0.10 -0.05 0.20 2.00

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

Sample No. Ce* Li* Be* P* Sc* Ti* Te* Hf* Re*

ROALDSTVEIT-01 4.38 10 0 1160 18.80 1210 12.15 0.20 0

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

Sample No. Tl*

ROALDSTVEIT-01 0

Era:	Paleozoic	Period:	Ordovician
Genesis:	Volcex	Form:
Main texture:	Structureless	Min. distribution:	Disseminated (<20 % ore minerals)

	Province:	Caledonides
	Geotec.unit:	Hardangerfjord Nappe Complex
	Tectonic complex:	Varaldsøy Complex
	Igneous complex:

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

Relationship	Rock	Origin
Host rock	Greenschist	Extrusive Original rock :Tuff
		Metamorphic facies :Greenschist

	Location:	Type:	Orientation(360 gr.):	Relation to min.:
	Host rock	Foliation	Strike/Dip :25 / 60	Post-mineralisation ;...Effect :Controls

Sample No.	Sample Type	Cu*	Zn*	Pb*	Co*	Ni*	Ag*	Au#
ROALDSTVEIT-01	Dump	16800	231	120	234	15	10.8	201.0

Sample No.	As*	Cd*	Ba*	Mo*	Sn*	Sb*	Bi*	Se*	Ga*
ROALDSTVEIT-01	28	.6	40	1.94	4	0	9	136.00	9.64

Sample No.	Ge*	In*	S%	V*	Cr*	Mn*	Fe%	Th*	U*
ROALDSTVEIT-01	0.50	3.76	9.99	196	11	1230	21.40	0.21	0.20

Sample No.	W*	Rb*	Sr*	Y*	Zr*	Nb*	Ta*	Cs*	La*
ROALDSTVEIT-01	0	6.9	22.4	13.2	5	0.10	-0.05	0.20	2.00

Sample No.	Ce*	Li*	Be*	P*	Sc*	Ti*	Te*	Hf*	Re*
ROALDSTVEIT-01	4.38	10	0	1160	18.80	1210	12.15	0.20	0