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	THE ORE DATABASE
	Occurence 1832 - 001 Tverrberget
	(Object Id: 2157) (Last updated: 03.11.1999)

Mineralization

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

Main grain size:

Fine grained (< 1 mm)

Main alteration:

	Strike/Dip:	120 / 20	Direction:
			Plunge:

Stratigraphic classification of host rock

Era:

Proterozoic

Period:

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

Group:

Formation:

Mineralogy

	Relationship	Mineral	Amount
	Gangue mineral	Feldspar	Major mineral (>10%)
	Gangue mineral	Amphibole	Major mineral (>10%)
	Gangue mineral	Biotite	Major mineral (>10%)
	Gangue mineral	Garnet	Subordinate mineral (1-10%)
	Gangue mineral	Graphite	Subordinate mineral (1-10%)
	Ore mineral	Pyrrhotite	Major mineral (>10%)
	Ore mineral	Pyrite	Subordinate mineral (1-10%)
	Ore mineral	Chalcopyrite	Accessory mineral (<1%)

Lithology:

	Relationship	Rock	Origin
	Host rock	Glimmerskifer	Sedimentary Original rock :Greywacke
			Metamorphic facies :Amphibolite
	Host rock	Amfibolitt	Extrusive Original rock :Basalt
			Metamorphic facies :Amphibolite
	Wall rock	Kalkspatmarmor	Sedimentary Original rock :Limestone
			Metamorphic facies :Amphibolite

Structures

	Location:	Type:	Orientation(360 gr.):	Relation to min.:
	Host rock	Foliation	Strike/Dip :120 / 20	Post-mineralisation ;...Effect :None

Information(s) in free text format

Free text

Mineraliseringen har utgående i et stup, og er derfor vanskelig tilgjengelig. Det er utbrudt omkring 5 m3. Over kalkspatmarmor er det minst 5-6 m mektig, rusten granatglimmerskifer med tynne lag av amfibolitt (± granat). Det er litt diss. av magnetkis og svovelkis og spor av kobberkis over hele mektigheten av glimmerskifer (prøve 03) og amfibolitt, men sulfidene er konsentrert i minst ett 20-30 cm mektig lag av semimassiv magnetkis og litt svovelkis i grafittglimmerskifer (01, 02 og 04) med noe cummingtonitt. I den mineraliserte sonen er det lokale diskordanser pga. glidning.

Fieldsamples

	Sample No.	Sample type	Miscellanrous
	NO0031.01	Bedrock	Sampler: Wilberg, R./...Stored: Løkken Comment: Grafittholdig gl.sk. med semimassiv po-py-min. No. of registrated element analyses = 1
	NO0031.02	Bedrock	Sampler: Wilberg, R./...Stored: Løkken Comment: Grafittholdig gl.sk. med semimassiv po-py-min. No. of registrated element analyses = 1
	NO0031.03	Bedrock	Sampler: Wilberg, R./...Stored: Løkken Comment: Gl.sk. med po-diss. No. of registrated element analyses = 1
	NO0031.04	Bedrock	Sampler: Wilberg, R./...Stored: Løkken Comment: Semimassiv po i grafittgl.sk. No. of registrated element analyses = 1

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

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Analyse Results

from

Deposit Area 1832 - 001 Tverrberget

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#
NO0031.01	Bedrock	614	103	29	15	213	.7	8.0
NO0031.02	Bedrock	202	120	12	45	244	.8	13.0
NO0031.03	Bedrock	67	99	15	17	68	-.3	3.0
NO0031.04	Bedrock	397	153	44	24	287	.8	8.0

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Sample No.	Pt#	Pd#	Rh#	As*	Cd*	Ba*	Mo*	Sb*	Bi*
NO0031.01	9.0	7.0	-5.0	6	-.2	5	17.00	3	2
NO0031.02	21.0	11.0	-5.0	17	-.2	20	23.00	-2	3
NO0031.03	-3.0	-3.0	-5.0	3	-.2	114	6.00	2	-2
NO0031.04	18.0	8.0	-5.0	7	-.2	3	19.00	-2	-2

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Sample No.	S%	V*	Cr*	Mn*	Fe%	Th*	U*	W*	Sr*
NO0031.01	4.93	137	34	4121	11.25	8.00	6.00	-2	27.0
NO0031.02	6.96	218	76	4158	14.94	8.00	-5.00	-2	18.0
NO0031.03	1.07	97	71	220	4.66	10.00	-5.00	-2	8.0
NO0031.04	8.00	143	25	7375	17.08	5.00	-5.00	-2	111.0

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Sample No.	La*	B*
NO0031.01	15.00	6
NO0031.02	37.00	5
NO0031.03	29.00	5
NO0031.04	35.00	3

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The fact sheet was created on 16.04.2024

Questions or comments regarding the fact sheet can be emailed to: ressursdatabaser@ngu.no

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