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	Occurence 0 - 000 FEIL
	(Object Id: ) (Last updated: 08.11.2019)

Mineralization

	Era:	Paleozoic	Period:	Permian
	Genesis:	Hydrothermal vein	Form:
	Main texture:		Min. distribution:

Main grain size:

Main alteration:

	Strike/Dip:	308 / 90	Direction:
			Plunge:

Stratigraphic classification of host rock

Era:

Proterozoic

Period:

Mesoproterozoic

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

Group:

Formation:

Mineralogy

	Relationship	Mineral	Amount
	Gangue mineral	Garnet	Major mineral (>10%)
	Gangue mineral	Epidote	Major mineral (>10%)
	Gangue mineral	Quartz	Major mineral (>10%)
	Gangue mineral	Hornblende	Subordinate mineral (1-10%)
	Ore mineral	Magnetite	Major mineral (>10%)

Lithology:

	Relationship	Rock	Origin
	Wall rock	Granite	Intrusive Original rock :Granite

Structures

	Location:	Type:	Orientation(360 gr.):	Relation to min.:
	Wall rock	Foliation	Strike/Dip :307 / 70	Pre-mineralisation ;...Effect :None

Information(s) in free text format

Free text

Det befinner seg to mindre grøfter på Bjørndalsåsen. Her skal det også være en sulfidforekomst som kalles Skridua (TE 0394). Denne ble imidlertid ikke funnet. Det som regnes som hovedgruva er en 15 m lang grøft i tilnærmet Ø-V retning (308 grader). Den er 1m bred og 1-3 m dyp (dypest i vest). Det er svært lite mineralisert materiale å finne. Blokker består av drusekvarts med kun spredte korn av magnetitt. Ellers er det dels noe epidot og rødbrun granat. Om lag 80 m mot SV er en ca. 10 m lang vannfylt grøft i Ø-V retning (090 grader). Mineralisering består av enkelte små aggregater av magnetitt i tett amfibol-epidot-granat matriks. Granatene er 2-3 mm store er gule til grønne, dels euhedrale krystaller.

Fieldsamples

	Sample No.	Sample type	Miscellanrous
	TE0423.02	Dump	Sampler: T. Bjerkgård/...Stored: Løkken/...Size(kg): 1 Comment: Spredt finkornet magnetitt i drusekvarts med noe epidot og granat 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: 19107 52,01,00)

Location

County:

Municipality:

Mangler ()

Map 1:50000:

Nordagutu (1713-4)

Map 1:250000:

Skien

County:

UTM-Zone 33 - EUREF89/WGS84

Resource

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

Resources and production

	Activity:	Pitting	Reserves:
	Operating method:		Historical production:

Fieldsamples

	Sample No.	Sample type	Miscellanrous
	TE0423.01	Dump	Sampler: T. Bjerkgård/...Stored: Løkken/...Size(kg): 1 Comment: Spredt magnetitt i aggregater i matriks av amfibol, granat og epidot No. of registrated element analyses = 1

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

Name of Locality: Skjerp 2

(Object Id: 19108 52,02,00)

Location

County:

Municipality:

Mangler ()

Map 1:50000:

Nordagutu (1713-4)

Map 1:250000:

Skien

County:

UTM-Zone 33 - EUREF89/WGS84

Resource

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

Name of Locality: Skjerp 3

(Object Id: 19109 52,03,00)

Location

County:

Municipality:

Mangler ()

Map 1:50000:

Nordagutu (1713-4)

Map 1:250000:

Skien

County:

UTM-Zone 33 - EUREF89/WGS84

Resource

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

Name of Locality: Skjerp 4

(Object Id: 19110 52,04,00)

Location

County:

Municipality:

Mangler ()

Map 1:50000:

Nordagutu (1713-4)

Map 1:250000:

Skien

County:

UTM-Zone 33 - EUREF89/WGS84

Resource

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

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The fact sheet was created on 26.04.2024

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