Faktarka for Forekomstområde 1663

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	MALMDATABASEN
	Forekomstområde 1663 - 006
	(Sist oppdatert 11.jan.2022)

Navn på deposit area : Sandsve

(Objekt Id : 1663,006,00,00)

Lokalisering

Fylke :

Sør-Trøndelag (16)

Kommune :

Malvik (1663)

Kart 1:50000:

Stjørdal (1621-1)

Kart 1:250000:

Trondheim

Markeringspunkt:

Lengdegrad:

10.8671470

Breddegrad:

63.3089540

EU89-UTM Zone 32

(Coordinates IS confirmed)

X-koord:

593565 m.

Y-koord:

7021374 m.

Materialtype

	Hovedtype:	Basemetaller (Cu,Zn,Pb,Fe sulfider,As,Sb,Bi,Sn)	Subtype:	Sulfider
			Element(s):	Kis

Production

Activity:	Prøvedrift	Reserves:
Prod. method:		Production:
Prod. status:		Volume of dump:	120 m3

Betydning

Offentlig: Not Assessed (reg. 18.02.2015)

Economical: Ikke vurdert

Operations

From - To Activity Comments

1990 - 1990 Sampling Company/Institution :H. Karlstrøm

2020 - 2020 Geology Company/Institution :NGU

Sampling and description

Mineralization

Era: Paleozoic Period: Ordovician

Dating: Method:

Genesis: Vulkeks Form:

Main texture: Min. distribution: Semi-massiv

Main grain size: Middelskornet (1-3 mm) Main alteration: Klorittisering

Strike/Dip: Direction:

Plunge:

Stratigraphic classification of host rock

Era: Paleozoic Period: Ordovician

Province: Caledonides

Geotec.unit: Trondheim Nappe Complex

Tectonic complex: Støren Nappe

Igneous complex:

Group: Støren Group Formation:

Mineralogy

Relationship Mineral Amount

Gangue mineral Chlorite Major mineral (>10%)

Gangue mineral Quartz Major mineral (>10%)

Gangue mineral Actinolite Major mineral (>10%)

Gangue mineral Biotite Subordinate mineral (1-10%)

Ore mineral Pyrrhotite Major mineral (>10%)

Ore mineral Pyrite Major mineral (>10%)

Ore mineral Magnetite Subordinate mineral (1-10%)

Ore mineral Chalcopyrite Subordinate mineral (1-10%)

Lithology:

Relationship Rock Origin

Host rock Grønnstein Extrusive
Original rock :Basalt

Metamorphic facies :Greenschist

Structures

Location: Type: Orientation(360 gr.): Relation to min.:

Host rock Foliation Strike/Dip :255 / 50 Post-mineralisation ;...Effect :Controls

Host rock Mineral lineation Dir./Plunge :60 / 40 Post-mineralisation ;...Effect :Modifies

Opplysning(er) i fritekstformat

Fri tekst

Sandsvegruva befinner seg en knapp kilometer nordøst for Selbuvegen, drøy 100 m øst for Svetjønna. Gruva består av en stoll som går i sørlig retning inn i åsen. Stollen er ca. 20 m lang med et lite tverrslag mot øst 8 m inne i gruva. Det er en tipp på om lag 120 kbm foran gruveåpningen. I stollåpningen er det en svært skifrig klorittskifer med en utpreget lineasjon (060/40) og foliasjon (255/50). Enkelte cm-tykke striper med pyritt (semimassiv), ellers svært rustent. Mineralisering på tipphaugen består vesentlig av pyritt og magnetkis i rik impregnasjon i matriks dominert av kvarts og aktinolitt, lokalt også en god del kobberkis, samt magnetitt.

Bilde(r) fra forekomstområdet:

Photo no. 1 showing Tipphaug, Sandsve"

Photo no. 2 showing Stollen, Sandsve"

Bibliography:

From NGU's Reference Archive:

Torske, Tore , 1965

Geology of the Mostadmarka and Selbustrand area, Trøndelag.

;Norges geologiske undersøkelse;TIDSSKRIFTARTIKKEL;NGU; No.232;1-83 + ka pages

Abstract:

The bedrock of the area consists of metamorphic epiclastic, volcanic, and intrusive rocks of assumed Lower Ordovician age, assigned to, and lithologically matching the rocks of, the Røros, Støren and Lower Hovin Groups of the Trondheim Region. A detailed petrographic description of the rock varieties is given. The metamorphic grade of all rocks corresponds to the Greenschist Facies. - Small ore deposits occur in connection with the volcanic rocks. They comprise pyrite-pyrrhotite ores of the Leksdal Type, mixed pyrite-magnetite ores, and iron oxide ores. - Lithological variations of the sedimentary rocks is tentatively correlated with events during the early periods of the Caledonian Orogeny. - The volcanism within the area seems to have started with a phase of explosive activity, followed by extrusion (mostly submarine) of copious amounts of spilitic lavas; towards the end of the main period of volcanism a new episode of explosive activity has produced what is called the upper pyroclastic horizon, comprising rocks ranging from coarse volcanic breccia to finegrained tuffs. - The intrusive rocks consist mainly of saussurite gabbros and quartz keratophyres. The latter are thought to be intrusive rather than effusive, and evidence is offered to support this. In some places the character of pyroclastic material points to a quartz keratophyre parentage. Thus, quartz keratophyres may have occurred both as intrusive and volcanic rocks.

Fieldsamples

Sample No. Sample type Miscellanrous

HK90-008 Bedrock

Sampler :Karlstrøm, H.

Kommentar :Bånd og stikk av py i grønnskifer.

No. of registrated element analyses = 1

HK90-009 Bedrock

Sampler :Karlstrøm, H.

Kommentar :Rustent tuffittisk bånd i gr.sk. med py-impr. og noe cpy.

No. of registrated element analyses = 1

HK90-010 Bedrock

Sampler :Karlstrøm, H.

Kommentar :Svak py-min. i kalkholdig kvartskeratofyr. Noe cpy.

No. of registrated element analyses = 1

HK90-011S Bedrock

Sampler :Karlstrøm, H.

Kommentar :Samleprøve.

No. of registrated element analyses = 1

SANDSVE-1 Dump

Sampler :T. Bjerkgård/...Stored :Løkken

Kommentar :Båndet, semimassiv, finkornet pyritt med slirer av magnetitt i kvarts

No. of registrated element analyses = 1

SANDSVE-2 Dump

Sampler :T. Bjerkegård/...Stored :Løkken

Kommentar :Massiv, mm-kornet pyritt-magnetkis med aksessorisk kobberkis i kvarts-aktinolitt matriks

No. of registrated element analyses = 1

SANDSVE-3 Dump

Sampler :T. Bjerkgård/...Stored :Løkken

Kommentar :Semimassiv/massiv pyritt i kvarts, mm-slirer med magnetitt

No. of registrated element analyses = 1

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

Navn på locality : Skjerp 1

(Objekt Id : 1663,006,01,00)

Lokalisering

Fylke : Sør-Trøndelag (16) Kommune : Malvik (1663)

Kart 1:50000: Stjørdal (1621-1) Kart 1:250000: Trondheim

Markeringspunkt: Lengdegrad: 10.8669220 Breddegrad: 63.3097920

EU89-UTM Zone 32 (Coordinates IS confirmed)

X-koord: 593551 m. Y-koord: 7021467 m.

Materialtype

Hovedtype: Basemetaller (Cu,Zn,Pb,Fe sulfider,As,Sb,Bi,Sn) Subtype: Sulfider

Element(s): Kis

Production

Activity: Røsking Reserves:

Prod. method: Production:

Prod. status: Nedlagt Volume of dump: 20 m3

Mineralogy

Relationship Mineral Amount

Gangue mineral Quartz Major mineral (>10%)

Gangue mineral Chlorite Subordinate mineral (1-10%)

Ore mineral Pyrite Major mineral (>10%)

Ore mineral Magnetite Major mineral (>10%)

Lithology:

Relationship Rock Origin

Host rock Grønnstein Extrusive
Original rock :Basalt

Metamorphic facies :Greenschist

Structures

Location: Type: Orientation(360 gr.): Relation to min.:

Host rock Fold axis Dir./Plunge :60 / 35 Post-mineralisation ;...Effect :Modifies

Opplysning(er) i fritekstformat

Fri tekst

En liten vannfylt synk, ca4x3 m i omriss med en 20 kbm tipp. Kun svak pyrittimpregnasjon i kvartsrik bergart å finne. Nord for synken er det en kvartsrik sone med svak disseminasjon av magnetitt (susc. 15-25).

Navn på locality : Skjerp 2

(Objekt Id : 1663,006,02,00)

Lokalisering

Fylke : Sør-Trøndelag (16) Kommune : Malvik (1663)

Kart 1:50000: Stjørdal (1621-1) Kart 1:250000: Trondheim

Markeringspunkt: Lengdegrad: 10.8667630 Breddegrad: 63.3101080

EU89-UTM Zone 32 (Coordinates IS confirmed)

X-koord: 593542 m. Y-koord: 7021502 m.

Materialtype

Hovedtype: Basemetaller (Cu,Zn,Pb,Fe sulfider,As,Sb,Bi,Sn) Subtype: Sulfider

Element(s): Kis

Production

Activity: Røsking Reserves:

Prod. method: Production:

Prod. status: Volume of dump:

Opplysning(er) i fritekstformat

Fri tekst

Overgrodd, vannfylt synk, 4x2.5 m i omriss. Ingen blotninger og tippen er fullstendig overgrodd.

Analyse Results

from

Forekomstområde 1663 - 006 Sandsve

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#

HK90-008 Bedrock 1183 34 20 69 114 .5 55.0

HK90-009 Bedrock 2292 89 2 11 13 .4 9.0

HK90-010 Bedrock 474 25 2 14 10 .3 6.0

HK90-011S Bedrock 1069 42 6 21 34 .5 15.0

SANDSVE-1 Dump 5020 89 3 83 4 .9 16.0

SANDSVE-2 Dump 24500 577 10 151 15 3.5 141.0

SANDSVE-3 Dump 11200 283 12 157 8 4.1 126.0

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

Sample No. Pt# Pd# As* Cd* Ba* Mo* Sn* Sb* Bi*

HK90-008 6.0 5.0 122 .2 1 39.00 2 27

HK90-009 1.0 2.0 2 1.1 1 1.00 2 2

HK90-010 1.0 2.0 8 .2 1 5.00 2 2

HK90-011S 1.0 3.0 35 .6 1 4.00 2 5

SANDSVE-1 -5.0 1.0 33 .8 10 27.00 -1 -1 -1

SANDSVE-2 -5.0 1.0 81 5.1 40 64.00 -1 2 2

SANDSVE-3 -5.0 1.0 84 1.7 30 32.00 -1 2 2

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

Sample No. Se* Ga* Ge* In* S% V* Cr* Mn* Fe%

HK90-008 13.80 93 34 74 14.65

HK90-009 .32 76 95 551 9.62

HK90-010 .79 11 9 200 2.25

HK90-011S 3.04 41 28 313 5.42

SANDSVE-1 96.00 2.00 -1.00 -1.00 21 6 811 25.90

SANDSVE-2 153.00 2.00 -1.00 -1.00 12 9 1020 42.20

SANDSVE-3 159.00 -1.00 -1.00 -1.00 5 6 273 40.50

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

Sample No. Th* U* W* Sr* Nb* Ta* La* B* P*

HK90-008 2.00 5.00 1 1.0 2.00 2

HK90-009 1.00 5.00 1 12.0 2.00 2

HK90-010 1.00 5.00 1 20.0 2.00 6

HK90-011S 1.00 5.00 1 22.0 2.00 4

SANDSVE-1 -1.00 -1.00 -1 -1.00 -1.00 80

SANDSVE-2 -1.00 -1.00 -1 -1.00 -1.00 200

SANDSVE-3 -1.00 -1.00 -1 -1.00 -1.00 30

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

Sample No. Sc* Ti* Te*

HK90-008

HK90-009

HK90-010

HK90-011S

SANDSVE-1 -1.00 -50 2.00

SANDSVE-2 -1.00 220 3.00

SANDSVE-3 -1.00 -50 2.00

From - To	Activity	Comments
1990 - 1990	Sampling	Company/Institution :H. Karlstrøm
2020 - 2020	Geology	Company/Institution :NGU
		Sampling and description

Era:	Paleozoic	Period:	Ordovician
Dating:		Method:
Genesis:	Vulkeks	Form:
Main texture:		Min. distribution:	Semi-massiv

	Province:	Caledonides
	Geotec.unit:	Trondheim Nappe Complex
	Tectonic complex:	Støren Nappe
	Igneous complex:

Relationship	Mineral	Amount
Gangue mineral	Chlorite	Major mineral (>10%)
Gangue mineral	Quartz	Major mineral (>10%)
Gangue mineral	Actinolite	Major mineral (>10%)
Gangue mineral	Biotite	Subordinate mineral (1-10%)
Ore mineral	Pyrrhotite	Major mineral (>10%)
Ore mineral	Pyrite	Major mineral (>10%)
Ore mineral	Magnetite	Subordinate mineral (1-10%)
Ore mineral	Chalcopyrite	Subordinate mineral (1-10%)

Relationship	Rock	Origin
Host rock	Grønnstein	Extrusive Original rock :Basalt
		Metamorphic facies :Greenschist

Location:	Type:	Orientation(360 gr.):	Relation to min.:
Host rock	Foliation	Strike/Dip :255 / 50	Post-mineralisation ;...Effect :Controls
Host rock	Mineral lineation	Dir./Plunge :60 / 40	Post-mineralisation ;...Effect :Modifies

Activity:	Røsking	Reserves:
Prod. method:		Production:
Prod. status:	Nedlagt	Volume of dump:	20 m3

Sample No.	Sample Type	Cu*	Zn*	Pb*	Co*	Ni*	Ag*	Au#
HK90-008	Bedrock	1183	34	20	69	114	.5	55.0
HK90-009	Bedrock	2292	89	2	11	13	.4	9.0
HK90-010	Bedrock	474	25	2	14	10	.3	6.0
HK90-011S	Bedrock	1069	42	6	21	34	.5	15.0
SANDSVE-1	Dump	5020	89	3	83	4	.9	16.0
SANDSVE-2	Dump	24500	577	10	151	15	3.5	141.0
SANDSVE-3	Dump	11200	283	12	157	8	4.1	126.0

Sample No.	Pt#	Pd#	As*	Cd*	Ba*	Mo*	Sn*	Sb*	Bi*
HK90-008	6.0	5.0	122	.2	1	39.00		2	27
HK90-009	1.0	2.0	2	1.1	1	1.00		2	2
HK90-010	1.0	2.0	8	.2	1	5.00		2	2
HK90-011S	1.0	3.0	35	.6	1	4.00		2	5
SANDSVE-1	-5.0	1.0	33	.8	10	27.00	-1	-1	-1
SANDSVE-2	-5.0	1.0	81	5.1	40	64.00	-1	2	2
SANDSVE-3	-5.0	1.0	84	1.7	30	32.00	-1	2	2

Sample No.	Se*	Ga*	Ge*	In*	S%	V*	Cr*	Mn*	Fe%
HK90-008					13.80	93	34	74	14.65
HK90-009					.32	76	95	551	9.62
HK90-010					.79	11	9	200	2.25
HK90-011S					3.04	41	28	313	5.42
SANDSVE-1	96.00	2.00	-1.00	-1.00		21	6	811	25.90
SANDSVE-2	153.00	2.00	-1.00	-1.00		12	9	1020	42.20
SANDSVE-3	159.00	-1.00	-1.00	-1.00		5	6	273	40.50