Norsk versjon
	THE ORE DATABASE
	Occurence 1833 - 087 Tverrvatnet
	(Object Id: 2788) (Last updated: 28.02.2000)

Operations

	From - To	Activity	Comments
	1976 - 1976	Geophysics

Mineralization

	Era:	Proterozoic	Period:	Neoproterozoic
	Genesis:	Sedex	Form:	Layer
	Main texture:	Banded	Min. distribution:	Disseminated (<20 % ore minerals)

Main grain size:

Medium grained (1-3 mm)

Main alteration:

	Strike/Dip:	300 / 30	Direction:	310
			Plunge:	30

Stratigraphic classification of host rock

Era:

Proterozoic

Period:

Neoproterozoic

	Province:	Caledonides
	Geotec.unit:	Rødingsfjell Nappe Complex
	Tectonic complex:	Øverste allokton
	Igneous complex:

Group:

Mofjellgruppen

Formation:

Mineralogy

	Relationship	Mineral	Amount
	Gangue mineral	Quartz	Major mineral (>10%)
	Gangue mineral	Plagioclase	Major mineral (>10%)
	Gangue mineral	Potassic feldspar	Major mineral (>10%)
	Gangue mineral	Biotite	Subordinate mineral (1-10%)
	Gangue mineral	Muscovite	Subordinate mineral (1-10%)
	Ore mineral	Pyrite	Major mineral (>10%)

Lithology:

	Relationship	Rock	Origin
	Host rock	Muskovittgneis	Extrusive Original rock :Tuff
			Metamorphic facies :Amphibolite
	Wall rock	Granatglimmergneis	Sedimentary Original rock :Greywacke
			Metamorphic facies :Amphibolite

Structures

	Location:	Type:	Orientation(360 gr.):	Relation to min.:
	Host rock	Primary layering	Strike/Dip :300 / 30	Syn-mineralisation ;...Effect :Controls
	Host rock	Foliation	Strike/Dip :300 / 30	Post-mineralisation ;...Effect :None
	Host rock	Fold axis	Strike/Dip :310 / 30	Post-mineralisation ;...Effect :None

Information(s) in free text format

Free text

Ingen virkelige skjerp finnes, men stedvis er det i noen skrenter avskallet endel materiale. I en over 50 m bred sone er det granatglimmergneis (prøve 01) med lag av hvit muskovittgneis (02) impregnert med svovelkis (ca. 5 %).

Bibliography:

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

Krische, E.U. 1969: Bericht zu den geologischen Untersuchungen im gebiet Tverrvatn-Rødvatn. Upubl. rapp.

Fieldsamples

	Sample No.	Sample type	Miscellanrous
	NO0669.02	Bedrock	Sampler: Wilberg, R./...Stored: Løkken Comment: Lys muskovittgneis med py-diss. No. of registrated element analyses = 1

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

Name of Sample point: Prøvepunkt 1

(Object Id: 4113 87,00,01)

Location

County:

Nordland

Municipality:

Rana (1833)

Map 1:50000:

Storforshei (2027-4)

Map 1:250000:

Mo i Rana

Coordinate system:

EU89-UTM Zone 33

East:

481432 m.

North:

7348067 m.

Longitude:

14.5868230

Latitude:

66.2520640

Show on map

Resource

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

Fieldsamples

	Sample No.	Sample type	Miscellanrous
	NO0669.01	Bedrock	Sampler: Wilberg, R./...Stored: Løkken Comment: Granatglimmergneis med py-diss. No. of registrated element analyses = 1

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

Name of Sample point: Prøvepunkt 2

(Object Id: 36730 87,00,02)

Location

County:

Nordland

Municipality:

Rana (1833)

Map 1:50000:

Storforshei (2027-4)

Map 1:250000:

Mo i Rana

Coordinate system:

EU89-UTM Zone 33

East:

481339 m.

North:

7348020 m.

Longitude:

14.5847670

Latitude:

66.2516320

Show on map

Resource

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

Information(s) in free text format

Free text

5-6 m mektig sone med vekslende kvarts-sericitt- og biotitt-klorittskifer, begge typer med svak pyrittimpregnasjon.

Fieldsamples

	Sample No.	Sample type	Miscellanrous
	TVERRVATNET-01	Bedrock	Sampler: T. Bjerkgård Comment: Chlorite-biotite gneiss with scattered pyrite. Garnet-bearing No. of registrated element analyses = 1

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

---

Analyse Results

from

Deposit Area 1833 - 087 Tverrvatnet

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#
NO0669.01	Bedrock	10	82	5	19	6	.1	1.0
NO0669.02	Bedrock	86	84	6	15	4	.1	9.0
TVERRVATNET-01	Bedrock	121	156	53	16	8	-1.0	-10.0

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

Sample No.	Pt#	Pd#	As*	Cd*	Ba*	Mo*	Sn*	Sb*	Bi*
NO0669.01	6.0	7.0	2	.2	27	9.00		2	2
NO0669.02	3.0	4.0	5	.2	47	1.00		2	2
TVERRVATNET-01			-5		702	2.00	1	6	-2

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

Sample No.	Ga*	S%	V*	Cr*	Mn*	Fe%	Th*	U*	W*
NO0669.01		4.23	58	14	294	5.93	3.00	5.00	1
NO0669.02		2.18	25	18	176	3.64	6.00	5.00	1
TVERRVATNET-01	15.00					4.74

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

Sample No.	Sr*	La*	B*
NO0669.01	2.0	2.00	3
NO0669.02	2.0	2.00	2
TVERRVATNET-01

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The fact sheet was created on 06.05.2024

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