Fact Sheet for <b>Occurence 3428 - 603 Grøtberget II</b>

					Norsk versjon
	THE NATURAL STONE DATABASE
	Occurence 3428 - 603 Grøtberget II
	(Object Id: 9776) (Last updated: 20.11.2009)

Belongs to the Province: Klebersten Folldal-Røros

Location

County:

Innlandet

Municipality:

Alvdal (3428)

Map 1:50000:

Alvdal (1619-3)

Map 1:250000:

Røros

Coordinate system:

EU89-UTM Zone 32

East:

572815 m.

North:

6902921 m.

Longitude:

10.4018230

Latitude:

62.2509220

Show on map

Resource

	Resource Type:	Soapstone and serpentinite	Resource Subtype:	Soapstone
			Brickstone(Y/N):	N

Importance

Raw material meaning:

Not Assessed (reg. 18.02.2015)

Resources and production

	Activity:	Stone quarrying	Reserves:
	Operating method:	Open pit mining	Historical production:

Products

Commercial Name Product description

Kleberstein Classification: Colour:

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Photo no. 1 showing Saget flate"

Deposit rock

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Information(s) in free text format

Description

Strålsjøen-Einunna zone The Strålsjøen-Einunna talc/soapstone zone is apparently situated within the Gula Gp. in the Einundalen-Savalen tract (Fig. 37) and therefore does not appear to belong to the Vågåmo ophiolite or its derivatives. This is a narrow zone, known for centuries, and exploited for local usage (fire places, etc.). In the NE end, at the Grøtberget lens, only serpentinite was observed. The next occurrence is at Strypet (which in local dialect means saddle point or pass point) north of Strålsjøen in a bog (?). The soapstone occurrence was not located during reconnaissance in the area, but it is definitely located marked on the map of Marlow (1935) both with regard to size and to location. In the central portion, at Svartlia south of Strålsjøen old soapstone workings are reported (Helland 1893, p.117),(Braseth 1995, p.155). Farther towards the SSW talcified serpentinite occurs in several road-cuts along the Folldal-Strålsjøen-Savalen road just opposite the place where the river Einunna makes a 90° bend. The southern end of this zone is represented by the Klebermyran (name translates soapstone bogs) occurrence situated on the western side of the river Einunna. From Karlsen and Nilsson 1999. Grøtberget er en liten serpentinittlinse beliggende ca. 1 km vest for SV-hjørnet av Savalen. Linsen måler bare ca. 20 x 30 m og det ser ut som den er kløvd i fire jevnstore deler ved to kjempemessige øksehugg tvers på hverandre. I randsonen av linsen mot nord fins lokalt litt kleber i serpentinitten, men det fins ikke synlige arbeidspunkter noe sted her. Beskrivelse av L.P. Nilsson.

Location

Like øst for Einunna bru tar en vei nordover mot Savalen. Ved sørenden på Savalen går en skogsvei i NØ-lig retning. Denne følges i 8-900 m, så må man gå 3-400 m mot SV for å finne forekomsten som er en rund fjellkolle med diameter ca. 20 m.

Photo(s) from the Deposit area:

Photo no. 1 showing Fjellkollen av kleberstein"

Photo no. 2 showing Klebersteinsblokk"

Bibliography:

From NGU's Reference Archive:

Karlsen, Tor Arne; Nilsson, Lars Petter , 2000

Talc deposits in Norway

;Norges geologiske undersøkelse;FAGRAPPORT;NGU-rapport; No.99.135;146 pages

Abstract:

Information about talc and soapstone deposits registered in NGU's different databases and various available literature have been collected and described in the present report. Around 400 deposits/occurrences are known, but the detail of the available information varies widely. By reading old field-books as well as old manuscripts, maps, etc. dating as far back as A.D.1758, quite a lot of data has been found. The result of the work shows that most described talc in Norway is of ultramafic origin and is associated with serpentinites. The most common mineral association is talc + breunnerite. Different talc-provinces can be defined from the registered and non-registered data, the most important being Nord-Gudbrandsdalen, Altermark and Stølsheimen. While Altermark and Stølsheimen have been investgated in some detail with respect to talc as an industrial mineral, the Nord-Gudbrandsdalen talc province has been investigated both for milling talc and for soapstone use as dimension stone. Deposits that are probably extensive, but have so far not been investigated in detail, include the Lesjehorrungane deposits in the Nord-Gudbrandsdalen region and the Raudfjellet deposit in Nord-Trøndelag. The fractionated metakomatiites (pale green talc-chlorite rocks) of the southern part of the Palaeo-proterozoic Karasjok Greenstone Belt in Finnmark, Northern Norway, possibly represents, by far, the largest accumulations of talc in Norway. These rocks are recently mapped, for the first time, but other critical information is, however, very scarce.

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