Fact Sheet for <b>Occurence 5059 - 025 Halsetåsen vest</b>

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	THE ORE DATABASE
	Occurence 5059 - 025 Halsetåsen vest
	(Object Id: 4331) (Last updated: 13.04.2020)

Location

County:

Trøndelag

Municipality:

Orkland (5059)

Map 1:50000:

Løkken (1521-3)

Map 1:250000:

Trondheim

Coordinate system:

EU89-UTM Zone 32

East:

528015 m.

North:

6998699 m.

Longitude:

9.5553080

Latitude:

63.1165770

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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:	Pitting	Reserves:
	Operating method:		Historical production:

Operations

From - To Activity Comments

1982 - 1982 Sampling Company/Institution :NTH

Mineralization

Era: Paleozoic Period: Ordovician

Genesis: Volcex Form: Layer

Main texture: Banded Min. distribution: Semi-massive (20-50 % ore minerals)

Main grain size: Fine grained (< 1 mm) Main alteration: Chloritisation

Strike/Dip: 310 / 80 Direction:

Plunge:

Stratigraphic classification of host rock

Era: Paleozoic Period: Ordovician

Province: Caledonides

Geotec.unit: Trondheim Nappe Complex

Tectonic complex: Støren Nappe

Igneous complex:

Group: Støren Group Formation:

Mineralogy

Relationship Mineral Amount

Gangue mineral Quartz Major mineral (>10%)

Gangue mineral Chlorite Major mineral (>10%)

Gangue mineral Amphibole Major mineral (>10%)

Ore mineral Magnetite Major mineral (>10%)

Ore mineral Pyrite Major mineral (>10%)

Lithology:

Relationship Rock Origin

Wall rock Jasper Sedimentary
Original rock :Exhalite

Metamorphic facies :Greenschist

Wall rock Greenstone Extrusive
Original rock :Basalt

Metamorphic facies :Greenschist

Structures

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

Host rock Mineral banding Strike/Dip :310 / 80 Syn-mineralisation ;...Effect :Controls

Information(s) in free text format

Free text

Flere horisonter med assosiert vasskis og jaspis finnes i Svinsåsmarka i den sørvestlige delen Løkken-området. De ligger i den øvre sekvensen med grønnstein og kan følges i flere kilometers lengde (Grenne & Slack 2003). En av disse er Halsetåsen vest som er et mindre skjerp i den vestre delen av Halsetåsen. En 6 m lang, gjengrodd grop finnes på sørsida av en mindre kolle som domineres av sterkt rødfarget jaspis. En opptil 2 m høy vegg finnes nordøst i gropa, og tilnærmet flattliggende vasskis som er minst 0,5 m mektig er blottet. Den består av smale bånd med finkornet til svært finkornet pyritt som veksler med mørke kloritt-/stilpnomelanrike og lyse kvartsrike laminer. Tynne magnetitt-laminer er også observert. Sekvensen er invertert, og stratigrafisk ligger vasskis over jaspis.

Bibliography:

References not to be found in NGU's Reference Archive.:

Grenne, T. & Slack, J.F. 2003. bedded jaspers of the Ordovician Løkken ophiolite, Norway: seafloor deposition and diagenetic maturation of hydrothermal plume-derived silica-iron gels. Mineralium Deposita 38, 625-639.

Sand, K. 1982: Feltarbeidsrapport Løkken 1982. BV 1822

Fieldsamples

Sample No. Sample type Miscellanrous

JS-M1949 Dump

Sampler: J.S. Sandstad/...Stored: Løkken/...Size(kg): 2

Comment: Massive pyrite, very fine grained, laminated ('vasskis')

No. of registrated element analyses = 1

JS-M1950 Bedrock

Sampler: J.S. Sandstad/...Stored: Løkken/...Size(kg): 2

Comment: Banded black schist with disseminated pyrite + magentite? fine grained, banded ('vasskis')

No. of registrated element analyses = 1

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

Analyse Results

from

Deposit Area 5059 - 025 Halsetåsen vest

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#

JS-M1949 Dump 480 1480 287 30 650 29.3 679.0

JS-M1950 Bedrock 117 873 51 21 165 1.9 26.0

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

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

JS-M1949 12.0 9.0 485 27.6 -10 50.80 1 20 0

JS-M1950 11.0 12.0 72 5.4 -10 8.88 2 2 0

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

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

JS-M1949 30.00 10.50 0.56 0.22 10.00 462 38 144 36.30

JS-M1950 9.00 15.10 0.38 0.20 7.65 632 77 488 22.30

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

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

JS-M1949 4.96 11.10 2 0.6 4.2 17.6 41 2.80 0.24

JS-M1950 6.49 9.60 0 0.2 7.3 21.8 68 5.10 0.36

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

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

JS-M1949 0.11 21.00 36.30 16 0 0 1 2 790

JS-M1950 0.09 32.70 57.80 13 0 0 2 4 1820

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

Sample No. K * Ca* Sc* Ti* Te* Hf* Re* Tl*

JS-M1949 0 0 5.80 0 0.63 1.10 185 1

JS-M1950 0 0 9.90 0 0.26 1.50 27 0

	From - To	Activity	Comments
	1982 - 1982	Sampling	Company/Institution :NTH

Era:	Paleozoic	Period:	Ordovician
Genesis:	Volcex	Form:	Layer
Main texture:	Banded	Min. distribution:	Semi-massive (20-50 % ore minerals)

	Province:	Caledonides
	Geotec.unit:	Trondheim Nappe Complex
	Tectonic complex:	Støren Nappe
	Igneous complex:

Relationship	Mineral	Amount
Gangue mineral	Quartz	Major mineral (>10%)
Gangue mineral	Chlorite	Major mineral (>10%)
Gangue mineral	Amphibole	Major mineral (>10%)
Ore mineral	Magnetite	Major mineral (>10%)
Ore mineral	Pyrite	Major mineral (>10%)

Relationship	Rock	Origin
Wall rock	Jasper	Sedimentary Original rock :Exhalite
		Metamorphic facies :Greenschist
Wall rock	Greenstone	Extrusive Original rock :Basalt
		Metamorphic facies :Greenschist

	Location:	Type:	Orientation(360 gr.):	Relation to min.:
	Host rock	Mineral banding	Strike/Dip :310 / 80	Syn-mineralisation ;...Effect :Controls

Sample No.	Sample Type	Cu*	Zn*	Pb*	Co*	Ni*	Ag*	Au#
JS-M1949	Dump	480	1480	287	30	650	29.3	679.0
JS-M1950	Bedrock	117	873	51	21	165	1.9	26.0

Sample No.	Pt#	Pd#	As*	Cd*	Ba*	Mo*	Sn*	Sb*	Bi*
JS-M1949	12.0	9.0	485	27.6	-10	50.80	1	20	0
JS-M1950	11.0	12.0	72	5.4	-10	8.88	2	2	0

Sample No.	Se*	Ga*	Ge*	In*	S%	V*	Cr*	Mn*	Fe%
JS-M1949	30.00	10.50	0.56	0.22	10.00	462	38	144	36.30
JS-M1950	9.00	15.10	0.38	0.20	7.65	632	77	488	22.30

Sample No.	Th*	U*	W*	Rb*	Sr*	Y*	Zr*	Nb*	Ta*
JS-M1949	4.96	11.10	2	0.6	4.2	17.6	41	2.80	0.24
JS-M1950	6.49	9.60	0	0.2	7.3	21.8	68	5.10	0.36

Sample No.	Cs*	La*	Ce*	Li*	Be*	Na*	Mg*	Al*	P*
JS-M1949	0.11	21.00	36.30	16	0	0	1	2	790
JS-M1950	0.09	32.70	57.80	13	0	0	2	4	1820

Sample No.	K *	Ca*	Sc*	Ti*	Te*	Hf*	Re*	Tl*
JS-M1949	0	0	5.80	0	0.63	1.10	185	1
JS-M1950	0	0	9.90	0	0.26	1.50	27	0