Faktarka for Forekomstområde 1566

					English version
	INDUSTRIMINERALDATABASEN
	Forekomstområde 1566 - 308
	(Sist oppdatert 14.okt.2020)

Navn på deposit area : Tverrådalen

(Objekt Id : 1566,308,00,00)

Borekjerner fra forekomstområdet: Se borehullsområde Tverrådalen

Lokalisering

Fylke :

Møre og Romsdal (15)

Kommune :

Surnadal (1566)

Kart 1:50000:

Snota (1420-1)

Kart 1:250000:

Ålesund

Markeringspunkt:

Lengdegrad:

8.8584910

Breddegrad:

62.9379080

EU89-UTM Zone 32

(Coordinates IS confirmed)

X-koord:

492816 m.

Y-koord:

6978679 m.

Materialtype

Hovedtype:

Silika

Subtype:

Kvartsitt

Production

Activity:	Prospektering	Reserves:	2,5 thousand tons
Prod. method:		Production:
Prod. status:	Ikke satt i drift	Volume of dump:

Betydning

Offentlig: Little Importance (reg. 18.02.2015)

Economical: Lite viktig , (Confirmed 27.sep.2006 by Axel Muller)

Products

Element/product Crude ore grade or quality

QUAZIT %

Mineralization

Era: Proterozoic Period:

Dating: Method:

Genesis: Regionalmetamorf Form: Linse

Main texture: Båndet Min. distribution:

Main grain size: Finkornet (<1 mm)

Strike/Dip: Direction:

Plunge:

Stratigraphic classification of host rock

Era: Period:

Province:

Geotec.unit:

Tectonic complex:

Igneous complex:

Group: Formation:

Bilde(r) fra forekomstområdet:

Photo no. 1 showing Outcrop of the Tverrådalenl kyanite quartzite"

Photo no. 2 showing Section of the Tverrådalen kyanite quartzite"

Photo no. 3 showing Micrograph of kyanite quartzite"

Bibliography:

From NGU's Reference Archive:

Tørudbakken, Bjørn O , 1982

En geologisk undersøkelse i nordre Trollheim ved Surnadal, med hovedvekt på sammenhengen mellom strukturer, metamorfe og aldersforhold.

;UiO Geologisk fellesråd;AVHANDLING

Wanvik, Jan Egil , 1998

Kyanite investigations in Tverrådalen, Surnadal

;Norges geologiske undersøkelse;FAGRAPPORT;NGU-rapport; No.98.080;23 pages

Abstract:

A kyanite-quartzite south-east of Skei in Surnadal has been investigated by field sampling and core drilling with Pack Sack equipment. The 5-6 m thick layer, identified only in a single outcrop, has an average kyanite content of 30% according to analyses of the drill cores. The deposit has a near vertical plunge and the lateral extension is unknown, due to lack of outcrops.

Müller, Axel ; Wanvik, Jan Egil ; Kronz, Andreas , 2005

Norwegian kyanite quartzites - potential resources of high purity quartz?

;Norges geologiske undersøkelse;RAPPORT;NGU-rapport; No.2005.039;70 s. pages

Abstract:

Forkortet: This study represents an evaluation of Norwegian kyanite quartzite occurrences as potential deposits of high purity quartz raw material. Kyanite quartzites are rare fine-grained with 70 to 85 vol. % quartz and > 15 vol. % kyanite (Al2SiO5) which occur in Proterozoic supracrustal rock units. Kyanite quartzites form stratiform lens-shaped bodies, which can extend several kilometers.

Fieldsamples

Sample No. Sample type Miscellanrous

DH1 0-3.5m Bedrock

Sampler :Wanvik/...Stored :NGU

Kommentar :Kyanite-poor kyanite quartzite

No. of registrated oxide analyses = 1

DH1 3.5-4.8m Bedrock

Sampler :Wanvik/...Stored :NGU

Kommentar :Kyanite-rich kyanite quartzite

No. of registrated oxide analyses = 1

DH2 0-1.1m Bedrock

Sampler :Wanvik/...Stored :NGU

Kommentar :Kyanite-rich kyanite quartzite

No. of registrated oxide analyses = 1

DH2 1.1-3.5m Bedrock

Sampler :Wanvik/...Stored :NGU

Kommentar :Kyanite-rich kyanite quartzite

No. of registrated oxide analyses = 1

DH2 3.5-5.5m Bedrock

Sampler :Wanvik/...Stored :NGU

Kommentar :Kyanite-rich kyanite quartzite

No. of registrated oxide analyses = 1

DH2 5.5-9.1m Bedrock

Sampler :Wanvik/...Stored :NGU

Kommentar :Kyanite-rich kyanite quartzite

No. of registrated oxide analyses = 1

1907401 Bedrock

Sampler :Muller/...Stored :NGU

Kommentar :Kyanite-poor kyanite quartzite

No. of registrated element analyses = 1

No. of registrated mineral analyses = 3

No. of registrated oxide analyses = 1

5 Bedrock

Sampler :Wanvik/...Stored :NGU

Kommentar :Kyanite-rich kyanite quartzite

No. of registrated oxide analyses = 1

6 Bedrock

Sampler :Wanvik/...Stored :NGU

Kommentar :Kyanite-rich kyanite quartzite

No. of registrated oxide analyses = 1

7 Bedrock

Sampler :Wanvik/...Stored :NGU

Kommentar :Kyanite-poor kyanite quartzite

No. of registrated oxide analyses = 1

8 Bedrock

Sampler :Wanvik/...Stored :NGU

Kommentar :Kyanite-rich kyanite quartzite

No. of registrated oxide analyses = 1

9 Bedrock

Sampler :Wanvik/...Stored :NGU

Kommentar :Kyanite-poor kyanite quartzite

No. of registrated oxide analyses = 1

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

Analyse Results

from

Forekomstområde 1566 - 308 Tverrådalen

Element analyses
( *=parts pr. million, #=parts pr.billion, Negative values means below detection limit value.)

Sample No. Sample Type Cu* Zn* Pb* Co* Ni* As* Ba*

1907401 Bedrock -10 7 -10 8 -5 -5 399

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

Sample No. Mo* Ga* S% V* Cr* Th* W* Sr* Y*

1907401 -5.00 -10.00 -.10 25 -10 8.00 31 5.0 -5.0

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

Sample No. Zr* Nb* La* Ce* Pr* Nd* Sc* Hf*

1907401 310 16.00 13.00 10.00 -10.00 -10.00 26.00 14.00

Mineral analyses
( All values are in ppm. Negative values means below detection limit value.)

Sample No. Sample Type Mineral Li Be B

1907401 Bedrock Quartz -1.000 -.400 -1.000

1907401 Bedrock Quartz -1.000 -.400 -1.000

1907401 Bedrock Quartz -1.000 -.400 -1.000

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

Sample No. Na Al P K Ca Ti Mn Fe Ge

1907401 -20.000 14.000 -5.000 -.200 -15.000 8.000 -.100 -.400 .400

1907401 -20.000 13.900 -5.000 .490 -15.000 13.600 -.100 -.400 .400

1907401 -20.000 18.500 -5.000 -.200 -15.000 10.300 -.100 .400 .500

Oxide analyses
( All values are in % )

Sample No. Sample Type SiO2 Al2O3 TiO2 Fe2O3 MnO MgO CaO

DH1 0-3.5m Bedrock 78.64 16.96 0.45 0.31 -0.01 0.11 0.05

DH1 3.5-4.8m Bedrock 75.49 21.81 0.47 0.10 -0.01 0.11 0.02

DH2 0-1.1m Bedrock 80.26 18.15 0.35 0.19 -0.01 0.09 0.02

DH2 1.1-3.5m Bedrock 69.38 27.88 0.46 0.27 -0.01 0.11 0.07

DH2 3.5-5.5m Bedrock 78.35 18.82 0.38 0.24 -0.01 0.10 0.05

DH2 5.5-9.1m Bedrock 75.83 20.62 0.39 0.20 -0.01 0.11 0.04

1907401 Bedrock 82.67 14.28 0.44 0.13 -0.01 0.06 0.01

5 Bedrock 80.23 17.90 0.44 0.22 -0.01 0.14 0.03

6 Bedrock 67.62 30.75 0.35 0.26 -0.01 0.14 0.04

7 Bedrock 83.09 13.19 0.50 0.23 -0.01 0.11 0.16

8 Bedrock 70.19 26.50 0.45 0.22 -0.01 0.13 0.03

9 Bedrock 81.76 15.10 0.51 0.15 -0.01 0.09 -0.01

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

Sample No. Na2O K2O P2O5 Loss Sum

DH1 0-3.5m 0.32 0.71 0.05 1.89 99.00

DH1 3.5-4.8m -0.10 0.20 0.03 1.14 99.00

DH2 0-1.1m -0.10 0.22 0.02 0.93 100.00

DH2 1.1-3.5m -0.10 0.18 0.07 1.02 99.00

DH2 3.5-5.5m -0.10 0.19 0.04 0.70 99.00

DH2 5.5-9.1m 0.16 0.28 0.04 1.21 99.00

1907401 -0.10 0.15 0.03 0.62 98.00

5 -0.10 0.38 0.03 0.97 100.00

6 -0.10 0.23 0.05 0.75 100.00

7 0.18 0.47 0.12 0.84 99.00

8 -0.10 0.18 0.05 0.81 98.00

9 -0.10 0.20 0.01 0.61 98.00

Era:	Proterozoic	Period:
Dating:		Method:
Genesis:	Regionalmetamorf	Form:	Linse
Main texture:	Båndet	Min. distribution:

	Province:
	Geotec.unit:
	Tectonic complex:
	Igneous complex:

	Abstract:
	A kyanite-quartzite south-east of Skei in Surnadal has been investigated by field sampling and core drilling with Pack Sack equipment. The 5-6 m thick layer, identified only in a single outcrop, has an average kyanite content of 30% according to analyses of the drill cores. The deposit has a near vertical plunge and the lateral extension is unknown, due to lack of outcrops.

	Abstract:
	Forkortet: This study represents an evaluation of Norwegian kyanite quartzite occurrences as potential deposits of high purity quartz raw material. Kyanite quartzites are rare fine-grained with 70 to 85 vol. % quartz and > 15 vol. % kyanite (Al2SiO5) which occur in Proterozoic supracrustal rock units. Kyanite quartzites form stratiform lens-shaped bodies, which can extend several kilometers.

Sample No.	Sample Type	Cu*	Zn*	Pb*	Co*	Ni*	As*	Ba*
1907401	Bedrock	-10	7	-10	8	-5	-5	399

Sample No.	Mo*	Ga*	S%	V*	Cr*	Th*	W*	Sr*	Y*
1907401	-5.00	-10.00	-.10	25	-10	8.00	31	5.0	-5.0

Sample No.	Zr*	Nb*	La*	Ce*	Pr*	Nd*	Sc*	Hf*
1907401	310	16.00	13.00	10.00	-10.00	-10.00	26.00	14.00

Sample No.	Sample Type	Mineral	Li	Be	B
1907401	Bedrock	Quartz	-1.000	-.400	-1.000
1907401	Bedrock	Quartz	-1.000	-.400	-1.000
1907401	Bedrock	Quartz	-1.000	-.400	-1.000

Sample No.	Na	Al	P	K	Ca	Ti	Mn	Fe	Ge
1907401	-20.000	14.000	-5.000	-.200	-15.000	8.000	-.100	-.400	.400
1907401	-20.000	13.900	-5.000	.490	-15.000	13.600	-.100	-.400	.400
1907401	-20.000	18.500	-5.000	-.200	-15.000	10.300	-.100	.400	.500

Sample No.	Sample Type	SiO2	Al2O3	TiO2	Fe2O3	MnO	MgO	CaO
DH1 0-3.5m	Bedrock	78.64	16.96	0.45	0.31	-0.01	0.11	0.05
DH1 3.5-4.8m	Bedrock	75.49	21.81	0.47	0.10	-0.01	0.11	0.02
DH2 0-1.1m	Bedrock	80.26	18.15	0.35	0.19	-0.01	0.09	0.02
DH2 1.1-3.5m	Bedrock	69.38	27.88	0.46	0.27	-0.01	0.11	0.07
DH2 3.5-5.5m	Bedrock	78.35	18.82	0.38	0.24	-0.01	0.10	0.05
DH2 5.5-9.1m	Bedrock	75.83	20.62	0.39	0.20	-0.01	0.11	0.04
1907401	Bedrock	82.67	14.28	0.44	0.13	-0.01	0.06	0.01
5	Bedrock	80.23	17.90	0.44	0.22	-0.01	0.14	0.03
6	Bedrock	67.62	30.75	0.35	0.26	-0.01	0.14	0.04
7	Bedrock	83.09	13.19	0.50	0.23	-0.01	0.11	0.16
8	Bedrock	70.19	26.50	0.45	0.22	-0.01	0.13	0.03
9	Bedrock	81.76	15.10	0.51	0.15	-0.01	0.09	-0.01

Sample No.	Na2O	K2O	P2O5	Loss	Sum
DH1 0-3.5m	0.32	0.71	0.05	1.89	99.00
DH1 3.5-4.8m	-0.10	0.20	0.03	1.14	99.00
DH2 0-1.1m	-0.10	0.22	0.02	0.93	100.00
DH2 1.1-3.5m	-0.10	0.18	0.07	1.02	99.00
DH2 3.5-5.5m	-0.10	0.19	0.04	0.70	99.00
DH2 5.5-9.1m	0.16	0.28	0.04	1.21	99.00
1907401	-0.10	0.15	0.03	0.62	98.00
5	-0.10	0.38	0.03	0.97	100.00
6	-0.10	0.23	0.05	0.75	100.00
7	0.18	0.47	0.12	0.84	99.00
8	-0.10	0.18	0.05	0.81	98.00
9	-0.10	0.20	0.01	0.61	98.00