Fact Sheet for Deposit Area 624

					Norsk versjon
	THE ORE DATABASE
	Deposit Area 624 - 044
	(Last updated 19.mar.2020)

Name of Deposit Area : Darbu

(Object Id : 0624,044,00,00)

Location

County :

Buskerud (06)

Municipality :

Øvre Eiker (0624)

Map 1:50000:

Kongsberg (1714-2)

Map 1:250000:

Skien

Marking point:

Longitude:

9.7509260

Latitude:

59.7070870

EU89-UTM Zone 32

(Coordinates IS confirmed)

X-coord:

542254 m.

Y-coord:

6619029 m.

Commodity

	Main Type:	Base metals (Cu,Zn,Pb,Fe sulphides, As,Sb,Bi,Sn)	Sub Type:	Lead
			Element(s):	Pb Zn Ag

Production

Activity:	Pitting	Reserves:
Prod. method:		Production:
Prod. status:		Volume of dump:	8 m3

Importance

Public: Not Assessed (reg. 18.02.2015)

Economical: Not classified/evaluated

Mineralization

Era: Paleozoic Period: Permian

Dating: Method:

Genesis: Hydrothermal breccia Form: Irregular

Main texture: Vein network Min. distribution: Irregular (scattered)

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

Strike/Dip: 350 / 90 Direction:

Plunge:

Stratigraphic classification of host rock

Era: Proterozoic Period: Mesoproterozoic

Province: South Norwegian Basement Province

Geotec.unit: Kongsberg Complex

Tectonic complex:

Igneous complex:

Group: Formation:

Mineralogy

Relationship Mineral Amount

Gangue mineral Quartz Major mineral (>10%)

Ore mineral Galena Major mineral (>10%)

Ore mineral Sphalerite Major mineral (>10%)

Ore mineral Pyrite Major mineral (>10%)

Ore mineral Chalcopyrite Subordinate mineral (1-10%)

Lithology:

Relationship Rock Origin

Host rock Dioritic gneiss Intrusive
Original rock :Diorite

Metamorphic facies :Amphibolite

Structures

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

Host rock Foliation Strike/Dip :0 / 65 Pre-mineralisation ;...Effect :None

Information(s) in free text format

Free text

Hovedforekomsten består av en liten skjæring som er dels fylt med skrot og ligger i en østvendt skråning ca. 20 m vest for skogsbilveien opp mot Aspesæter. Videre ca. 150 m lengre øst opp i skråningen finnes en synk som også er kalt Jøstanrud. I nordveggen i hovedforekomsten er det blottet 2-10 cm brede kvartsårer/-linser i mørk, finkornet sidestein med svak disseminasjon av pyritt. Orienteringen til foliasjonen i hornblendeførende diorittisk gneis like ved er 358°/85°. I tippen som er spredt jevnt utover finnes noen blokker med aggregater av sinkblende, blyglans og pyritt i noe urein kvarts.

Fieldsamples

Sample No. Sample type Miscellanrous

BU0208.01 Dump

Sampler :J.S. Sandstad/...Stored :L›kken/...Size(kg) :2

Comment :Disseminasjon/aggregater av sinkblende-blyglans-pyritt+kobberkis i kvarts

No. of registrated element analyses = 1

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

Name of Locality : Jøstanrud

(Object Id : 0624,044,01,00)

Location

County : Buskerud (06) Municipality : Øvre Eiker (0624)

Map 1:50000: Kongsberg (1714-2) Map 1:250000: Skien

Marking point: Longitude: 9.7482440 Latitude: 59.7071840

EU89-UTM Zone 32 (Coordinates IS confirmed)

X-coord: 542102 m. Y-coord: 6619039 m.

Commodity

Main Type: Base metals (Cu,Zn,Pb,Fe sulphides, As,Sb,Bi,Sn) Sub Type: Lead

Element(s): Pb Zn Ag

Production

Activity: Pitting Reserves:

Prod. method: Production:

Prod. status: Volume of dump: 6 m3

Mineralogy

Relationship Mineral Amount

Gangue mineral Quartz Major mineral (>10%)

Ore mineral Pyrite Major mineral (>10%)

Ore mineral Galena Subordinate mineral (1-10%)

Lithology:

Relationship Rock Origin

Host rock Dioritic gneiss Intrusive
Original rock :Diorite

Metamorphic facies :Amphibolite

Structures

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

Host rock Foliation Strike/Dip :358 / 85 Pre-mineralisation ;...Effect :None

Information(s) in free text format

Free text

Forekomsten består av en N-S orientert, vannfylt synk med sidevegger på 3x1,5 m. Det er dårlig blottet omkring skjerpet , men en omkring 30 cm bred, rustfarget kvartsgang med hulrom etter pyritt? står igjen i sørveggen. Gangens orientering er tilnærmet 10°/85°. Kvartsårebreksje kan anes i nordveggen. Pyritt ser ut til å være dominerende sulfid, men også en større blokk med svak disseminasjon av blyglans i tillegg til pyritt ble påvist.

Fieldsamples

Sample No. Sample type Miscellanrous

BU0208.02 Dump

Sampler :J.S. Sandstad/...Stored :L›kken/...Size(kg) :2

Comment :Svak disseminsjon av blyglans+kobberkis-pyritt i m›rk gr† kvarts

No. of registrated element analyses = 1

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

Analyse Results

from

Deposit Area 624 - 044 Darbu

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#

BU0208.01 Dump 423 37900 3740 14 2 6.9 21.0

BU0208.02 Dump 138 440 1185 3 4 4.2 24.0

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

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

BU0208.01 -5.0 -1.0 114 217.0 30 0.75 0 3 1

BU0208.02 -5.0 -1.0 69 1.7 50 2.00 0 1 6

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

Sample No. Se* Ga* Ge* In* S% V* Cr* Mn* Fe%

BU0208.01 6.50 1.03 -0.05 0.93 3.72 2 2 104 2.54

BU0208.02 2.60 3.21 -0.05 0.17 .64 12 4 183 2.43

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

Sample No. Th* U* W* Rb* Sr* Y* Zr* Nb* Ta*

BU0208.01 -0.20 -0.05 0 2.6 0.5 0.5 -1 0.15 -0.01

BU0208.02 0.20 0.71 0 5.9 2.8 1.3 2 -0.05 -0.01

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

Sample No. Cs* La* Ce* B* Li* Be* Na* Mg* Al*

BU0208.01 0.14 6.20 13.95 -10 1 -0 -0 0 0

BU0208.02 0.73 8.30 17.90 -10 9 0 0 0 1

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

Sample No. P* K * Ca* Sc* Ti* Te* Hf* Re* Hg*

BU0208.01 10 0 0 0.30 -0 0.19 -0.02 -0 0

BU0208.02 250 0 0 1.50 -0 0.16 0.06 0 0

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

Sample No. Tl*

BU0208.01 0

BU0208.02 0

Era:	Paleozoic	Period:	Permian
Dating:		Method:
Genesis:	Hydrothermal breccia	Form:	Irregular
Main texture:	Vein network	Min. distribution:	Irregular (scattered)

	Province:	South Norwegian Basement Province
	Geotec.unit:	Kongsberg Complex
	Tectonic complex:
	Igneous complex:

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

Relationship	Rock	Origin
Host rock	Dioritic gneiss	Intrusive Original rock :Diorite
		Metamorphic facies :Amphibolite

	Location:	Type:	Orientation(360 gr.):	Relation to min.:
	Host rock	Foliation	Strike/Dip :0 / 65	Pre-mineralisation ;...Effect :None

Sample No.	Sample Type	Cu*	Zn*	Pb*	Co*	Ni*	Ag*	Au#
BU0208.01	Dump	423	37900	3740	14	2	6.9	21.0
BU0208.02	Dump	138	440	1185	3	4	4.2	24.0

Sample No.	Pt#	Pd#	As*	Cd*	Ba*	Mo*	Sn*	Sb*	Bi*
BU0208.01	-5.0	-1.0	114	217.0	30	0.75	0	3	1
BU0208.02	-5.0	-1.0	69	1.7	50	2.00	0	1	6

Sample No.	Se*	Ga*	Ge*	In*	S%	V*	Cr*	Mn*	Fe%
BU0208.01	6.50	1.03	-0.05	0.93	3.72	2	2	104	2.54
BU0208.02	2.60	3.21	-0.05	0.17	.64	12	4	183	2.43

Sample No.	Th*	U*	W*	Rb*	Sr*	Y*	Zr*	Nb*	Ta*
BU0208.01	-0.20	-0.05	0	2.6	0.5	0.5	-1	0.15	-0.01
BU0208.02	0.20	0.71	0	5.9	2.8	1.3	2	-0.05	-0.01

Sample No.	Cs*	La*	Ce*	B*	Li*	Be*	Na*	Mg*	Al*
BU0208.01	0.14	6.20	13.95	-10	1	-0	-0	0	0
BU0208.02	0.73	8.30	17.90	-10	9	0	0	0	1

Sample No.	P*	K *	Ca*	Sc*	Ti*	Te*	Hf*	Re*	Hg*
BU0208.01	10	0	0	0.30	-0	0.19	-0.02	-0	0
BU0208.02	250	0	0	1.50	-0	0.16	0.06	0	0