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	THE ORE DATABASE
	Occurence 5058 - 002 Amunddal
	(Object Id: 4516) (Last updated: 16.02.2005)

Operations

	From - To	Activity	Comments
	1951 - 1991	Geophysics	Company/Institution :Geofysik Malmleting
	1953 - 1953	Geophysics

Mineralization

	Genesis:	Volcex	Form:	Ruler
	Main texture:	Banded	Min. distribution:	Massive (>50 % ore minerals)

Main grain size:

Fine grained (< 1 mm)

Main alteration:

	Strike/Dip:	20 / 45	Direction:
			Plunge:

Stratigraphic classification of host rock

Era:

Period:

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

Group:

Formation:

Mineralogy

	Relationship	Mineral	Amount
	Gangue mineral	Epidote	Major mineral (>10%)
	Gangue mineral	Plagioclase	Major mineral (>10%)
	Gangue mineral	Amphibole	Major mineral (>10%)
	Gangue mineral	Potassic feldspar	Subordinate mineral (1-10%)
	Gangue mineral	Quartz	Subordinate mineral (1-10%)
	Ore mineral	Magnetite	Major mineral (>10%)
	Ore mineral	Pyrite	Accessory mineral (<1%)

Lithology:

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

Structures

	Location:	Type:	Orientation(360 gr.):	Relation to min.:
	Host rock	Foliation	Strike/Dip :20 / 45	Post-mineralisation ;...Effect :None

Information(s) in free text format

Free text

De første mutinger i feltet ble foretatt i 1909. Fosdalen Bergverk utførte magnetiske målinger i 1951. På vestsiden av Kvitkrakaliklumpen (573570 7089900) står mutingsbolt og stikningspinner, men ingen røskingsarbeider er utført. På stedet er det en del oppvitret magnetitt-mineralisert stein og det er sterke ut- slag på kompasset. I blotning sees to 10 cm mektige lag massiv magnetitt med 3 m avstand (prøve 01 fra øverste lag, 02 fra nederste) i en veksling av hornblendeskifer og båndet, lys tuffittisk skifer med litt magnetitt-disseminasjon. Ved 574690 7090850 er det et 1 cm mektig magnetittbånd i grønnskifer. Ifølge magnetometerkart fra Fosdalen Bergverk skal det være en røsk i dette området. Øst for gården Amunddal (576020 7091450) er det en 3x2 m vannfylt og helt gjengrodd røsk (4 m3 tipp). Mineralisering er ikke observert.

Fieldsamples

	Sample No.	Sample type	Miscellanrous
	ST0320.01	Bedrock	Sampler: Wilberg, R./...Stored: Løkken Comment: Massiv mt-malm No. of registrated element analyses = 1
	ST0320.02	Bedrock	Sampler: Wilberg, R./...Stored: Løkken Comment: Massiv mt-malm No. of registrated element analyses = 1

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

Name of Locality: Skjerp 1

(Object Id: 6695 2,01,00)

Location

County:

Trøndelag

Municipality:

Åfjord (5058)

Map 1:50000:

Åfjord (1622-4)

Map 1:250000:

Trondheim

Coordinate system:

EU89-UTM Zone 32

East:

575939 m.

North:

7091242 m.

Longitude:

10.5493550

Latitude:

63.9399270

Show on map

Resource

	Resource Type:	Ferrous metals(Fe, Mn, Ti)	Resource Subtype:	Iron
			Element(s):	Fe

Resources and production

	Activity:	Pitting	Reserves:
	Operating method:		Historical production:

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Analyse Results

from

Deposit Area 5058 - 002 Amunddal

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#
ST0320.01	Bedrock	83	136	2	7	58	.1	8.0
ST0320.02	Bedrock	110	57	4	10	44	.1	6.0

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Sample No.	Pt#	Pd#	As*	Cd*	Ba*	Mo*	Sb*	Bi*	S%
ST0320.01	10.0	18.0	2	.9	16	1.00	2	2	.04
ST0320.02	13.0	25.0	2	.2	18	1.00	4	3	.05

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Sample No.	V*	Cr*	Mn*	Fe%	Th*	U*	W*	Sr*	La*
ST0320.01	83	29	2253	36.10	3.00	5.00	1	10.0	12.00
ST0320.02	109	51	1620	40.30	2.00	5.00	1	12.0	18.00

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Sample No.	B*
ST0320.01	3
ST0320.02	6

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The fact sheet was created on 04.05.2024

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

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