Fact Sheet for Deposit Area 438

					Norsk versjon
	THE ORE DATABASE
	Deposit Area 438 - 004
	(Last updated 08.mai.2006)

Name of Deposit Area : Sølna

(Object Id : 0438,004,00,00)

Location

County :

Hedmark (04)

Municipality :

Alvdal (0438)

Map 1:50000:

Alvdal (1619-3)

Map 1:250000:

Røros

Marking point:

Longitude:

10.5215450

Latitude:

62.1267750

EU89-UTM Zone 32

(Coordinates IS confirmed)

X-coord:

579357 m.

Y-coord:

6889234 m.

Commodity

	Main Type:	Base metals (Cu,Zn,Pb,Fe sulphides, As,Sb,Bi,Sn)	Sub Type:	Copper
			Element(s):	Kis Cu Zn

Production

Activity:	Mining	Reserves:
Prod. method:	Underground mining	Production:
Prod. status:	Disused, closed	Volume of dump:	375 m3

Importance

Public: Little Importance (reg. 18.02.2015)

Economical: Minor interest

Operations

From - To Activity Comments

Regular production Company/Institution :Fredrik Gaves Verk

1998 - 1998 Sampling Company/Institution :NGU mineralressurser

Mineralization

Era: Paleozoic Period: Ordovician

Dating: Method:

Genesis: Volcex Form:

Main texture: Banded Min. distribution: Massive (>50 % ore minerals)

Main grain size: Medium grained (1-3 mm) Main alteration: Chloritisation

Strike/Dip: Direction:

Plunge:

Stratigraphic classification of host rock

Era: Paleozoic Period: Ordovician

Province: Caledonides

Geotec.unit: Remsklepp Nappe Complex

Tectonic complex: Hummelfjell Nappe

Igneous complex:

Group: Tynset Group Formation:

Mineralogy

Relationship Mineral Amount

Gangue mineral Quartz Major mineral (>10%)

Gangue mineral Chlorite Subordinate mineral (1-10%)

Gangue mineral Amphibole Subordinate mineral (1-10%)

Ore mineral Pyrite Major mineral (>10%)

Ore mineral Chalcopyrite Subordinate mineral (1-10%)

Ore mineral Sphalerite Subordinate mineral (1-10%)

Ore mineral Pyrrhotite Subordinate mineral (1-10%)

Lithology:

Relationship Rock Origin

Wall rock Amphibolite/metabasalt Extrusive
Original rock :Basalt

Metamorphic facies :Greenschist

Structures

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

Wall rock Foliation Strike/Dip :228 / 60 Post-mineralisation ;...Effect :Controls

Wall rock Fold axis Dir./Plunge :252 / 60 Post-mineralisation ;...Effect :Modifies

Information(s) in free text format

Free text

Gruva ligger like vest for enden av en traktorvei på en snauhogst, omtrent 500 m ovenfor gården Lia. Den er lett tilgjengelig fra veien opp mot Gammelsætra og lett å finne. Gruva består av en skråsynk drevet ned langs fallet til foliasjonen, dvs. 55-60 grader mot NV. Åpningen er ca. 5 x 4 m og det er 7-8 m ned til vannflaten, hvor det ser ut til å ha foregått en utstrossing. Tippvolumet er anslått til ca. 375 kbm. I synken sees en mineralisert sone på omlag 2 meters mektighet. Den består dels av tykkere boudinerte linser med massiv båndet pyritt og av bånd og årer på cm-skala også dominert av pyritt i omgivende amfibolholdig klorittskifer. Årene danner dels nettverk i skiferen. I tillegg til pyritt opptrer underordnet sinkblende og spredte aggregater av kobberkis og magnetkis. Pyritt opptrer generelt i mm-store subhedrale kuber, men også spredte større euhedrale kuber opptrer spredt (inntil 5 mm). Det er noe anrikning av kloritt og sericitt i forbindelse med malmsonen, men egentlig ubetydelig. Sidebergart er amfibolitt/metabasalt.

Bibliography:

From NGU's Reference Archive:

Aalstad, I. , 1967

Magnetisk og elektromagnetisk flymåling Dovre-Alvdal

;Norges geologiske undersøkelse;FAGRAPPORT;NGU-rapport; No.687;7 pages

Fieldsamples

Sample No. Sample type Miscellanrous

HE0092.01 Dump

Sampler :T. Bjerkgård/...Stored :Løkken/...Size(kg) :3

Comment :Fine-grained foliated network of pyrite with subordinate sphalerite in amphibole-chlorite schist.

No. of registrated element analyses = 1

HE0092.02 Dump

Sampler :T. Bjerkgård/...Stored :Løkken/...Size(kg) :3

Comment :Fine-grained foliated network of pyrite with subordinate sphalerite in amphibole-chlorite schist.

No. of registrated element analyses = 1

HE0092.03 Dump

Sampler :T. Bjerkgård/...Stored :Løkken/...Size(kg) :3

Comment :Massive mm-grained pyrite-sphalerite with subordinate chalcopyrite. Few larger euhedral pyrite cubes.

No. of registrated element analyses = 1

HE0092.04 Dump

Sampler :T. Bjerkgård/...Stored :Løkken/...Size(kg) :3

Comment :Massive mm-grained pyrite with subordinate sphalerite and accessory chalcopyrite. Diffuse banding.

No. of registrated element analyses = 1

HE0092.05 Dump

Sampler :T. Bjerkgård/...Stored :Løkken/...Size(kg) :3

Comment :Massive mm-grained pyrite with subordinate sphalerite and accessory chalcopyrite. Diffuse banding.

No. of registrated element analyses = 1

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

Analyse Results

from

Deposit Area 438 - 004 Sølna

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#

HE0092.01 Dump 1053 20789 27 54 98 .5 15.0

HE0092.02 Dump 1003 14521 8 64 65 -.3 8.0

HE0092.03 Dump 14491 99999 89 248 65 15.2 41.0

HE0092.04 Dump 3686 49763 414 261 28 7.0 61.0

HE0092.05 Dump 3744 40649 870 213 29 11.9 39.0

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

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

HE0092.01 4.0 10.0 12 81.9 2 16.00 -3 6 55

HE0092.02 1.0 1.0 9 57.0 2 11.00 -3 5 58

HE0092.03 1.0 -1.0 46 366.1 1 24.00 -3 3 9

HE0092.04 1.0 2.0 51 187.6 2 20.00 -3 13 13

HE0092.05 1.0 1.0 51 154.5 1 22.00 -3 18 6

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

Sample No. Cr* Mn* Fe% Th* U* W* Sr* La* B*

HE0092.01 33 188 16.30 -2.00 -8.00 -2 7.0 2.00 10

HE0092.02 32 166 15.29 2.00 -8.00 -2 7.0 2.00 11

HE0092.03 -1 119 30.50 3.00 -8.00 -2 2.0 -1.00 16

HE0092.04 6 97 33.44 3.00 -8.00 -2 2.0 -1.00 21

HE0092.05 -1 65 33.02 3.00 -8.00 -2 1.0 -1.00 16

From - To	Activity	Comments
	Regular production	Company/Institution :Fredrik Gaves Verk
1998 - 1998	Sampling	Company/Institution :NGU mineralressurser

Era:	Paleozoic	Period:	Ordovician
Dating:		Method:
Genesis:	Volcex	Form:
Main texture:	Banded	Min. distribution:	Massive (>50 % ore minerals)

	Province:	Caledonides
	Geotec.unit:	Remsklepp Nappe Complex
	Tectonic complex:	Hummelfjell Nappe
	Igneous complex:

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

Relationship	Rock	Origin
Wall rock	Amphibolite/metabasalt	Extrusive Original rock :Basalt
		Metamorphic facies :Greenschist

Location:	Type:	Orientation(360 gr.):	Relation to min.:
Wall rock	Foliation	Strike/Dip :228 / 60	Post-mineralisation ;...Effect :Controls
Wall rock	Fold axis	Dir./Plunge :252 / 60	Post-mineralisation ;...Effect :Modifies

Sample No.	Sample Type	Cu*	Zn*	Pb*	Co*	Ni*	Ag*	Au#
HE0092.01	Dump	1053	20789	27	54	98	.5	15.0
HE0092.02	Dump	1003	14521	8	64	65	-.3	8.0
HE0092.03	Dump	14491	99999	89	248	65	15.2	41.0
HE0092.04	Dump	3686	49763	414	261	28	7.0	61.0
HE0092.05	Dump	3744	40649	870	213	29	11.9	39.0

Sample No.	Pt#	Pd#	As*	Cd*	Ba*	Mo*	Sb*	Bi*	V*
HE0092.01	4.0	10.0	12	81.9	2	16.00	-3	6	55
HE0092.02	1.0	1.0	9	57.0	2	11.00	-3	5	58
HE0092.03	1.0	-1.0	46	366.1	1	24.00	-3	3	9
HE0092.04	1.0	2.0	51	187.6	2	20.00	-3	13	13
HE0092.05	1.0	1.0	51	154.5	1	22.00	-3	18	6

Sample No.	Cr*	Mn*	Fe%	Th*	U*	W*	Sr*	La*	B*
HE0092.01	33	188	16.30	-2.00	-8.00	-2	7.0	2.00	10
HE0092.02	32	166	15.29	2.00	-8.00	-2	7.0	2.00	11
HE0092.03	-1	119	30.50	3.00	-8.00	-2	2.0	-1.00	16
HE0092.04	6	97	33.44	3.00	-8.00	-2	2.0	-1.00	21
HE0092.05	-1	65	33.02	3.00	-8.00	-2	1.0	-1.00	16