Norsk versjon
THE ORE DATABASE
Deposit Area 1640 - 079
(Last updated 19.mar.2024)

Name of Deposit Area : Gamle Solskinn
(Object Id : 1640,079,00,00)
The deposit area belongs to the Province : Solskinnsfeltet
Drill Cores from the Deposit Area: See Borehole Area Gamle solskinn
Location
County : Sør-Trøndelag (16) Municipality : Røros (1640)
Map 1:50000: Røros (1720-3) Map 1:250000: Røros
Marking point: Longitude: 11.5716820 Latitude: 62.6335740
EU89-UTM Zone 32 (Coordinates IS confirmed)
X-coord: 631866 m. Y-coord: 6947392 m.
Commodity
Main Type: Base metals (Cu,Zn,Pb,Fe sulphides, As,Sb,Bi,Sn) Sub Type: Copper
Element(s): Cu Kis
Production
Activity: Mining Reserves:
Prod. method: Underground mining Production: 90 thousand tons
Prod. status: Disused, closed Volume of dump:

Importance
Public: Little Importance (reg. 18.02.2015)
Economical: Minor interest , (Confirmed 25.okt.2001 by Terje Bjerkgård)
Historical: Yes , (Confirmed 25.okt.2001 by Terje Bjerkgård)

Products
Element/product Crude ore grade or quality
CU 3 %

Operations
From - To Activity Comments
1673 - 1720 Regular production Company/Institution :Røros Kobberverk
1870 - 1889 Regular production Company/Institution :Røros Kobberverk
1905 - 1917 Regular production Company/Institution :Røros Kobberverk

Mineralization
Era: Paleozoic Period: Ordovician
Dating: Method:
Genesis: Volcex Form: Irregular
Main texture: Banded Min. distribution: Massive (>50 % ore minerals)
Main grain size: Fine grained (< 1 mm) Main alteration: Chloritisation
Strike/Dip: Direction:
Plunge:
Stratigraphic classification of host rock
Era: Paleozoic Period: Ordovician
Province: Caledonides
Geotec.unit: Røros Nappe Complex
Tectonic complex:
Igneous complex:
Group: Aursund Formation:

Mineralogy
Relationship Mineral Amount
Gangue mineral Quartz Major mineral (>10%)
Gangue mineral Garnet Subordinate mineral (1-10%)
Gangue mineral Chlorite Subordinate mineral (1-10%)
Gangue mineral Epidote Subordinate mineral (1-10%)
Gangue mineral Biotite Subordinate mineral (1-10%)
Ore mineral Chalcopyrite Major mineral (>10%)
Ore mineral Pyrrhotite Major mineral (>10%)
Ore mineral Sphalerite Subordinate mineral (1-10%)
Ore mineral Magnetite Subordinate mineral (1-10%)

Lithology:
Relationship Rock Origin
Wall rock chlorite-muscovite schist Sedimentary
Original rock :Greywacke
Metamorphic facies :Greenschist

Information(s) in free text format
Free text
The Quintus–Hestkletten, Olav and Solskinn deposits consist predominantly of pyrrhotite and chalcopyrite with subordinate to major amounts of sphalerite. Pyrite is generally a subordinate mineral. Major non-sulphides are quartz and chlorite, while garnet and biotite are the most important subordinate phases. About 2.1 mill. t of ore was produced from these mines in the period 1660-1972, with the most from the Olavs mine, which was the last in the Storwartz ore field. Taking the Storwartz ore field as a whole, the deposits from east to west show a very distinct pattern with respect to zonation in the base metals from Cu-rich deposits in the east (Solskinn, Olav and Quintus) grading into Zn- and Pb-rich deposits in the west (the two Storwartz deposits). Together with the presence of an extensive and continuous chlorite alteration zone beneath the deposits, this is an argument in favour of the ore bodies in the Storwartz field originally being one deposit, with the zonation reflecting distance from the high T vent site(s). Taking into account the tonnages of the deposits and the in-situ ore grades, the proposed single deposit contained about 5 Mt of ore with an average grade of 3 % Cu and 9.4 % Zn, excluding eroded parts between the present deposits.

Bibliography:
From NGU's Reference Archive:
Kullerud, Gunnar , 1947
Geologisk beskrivelse av Olavsgruben og de andre grubene i Solskinnsfeltet.
;NTH Bergavd.;AVHANDLING

Aalen, O. E. , 1884
Røros kobberverk. Gamle Solskinnsgrube, 1: 537.
;Norges geologiske undersøkelse;KART;Bergarkivet; No.K 1041

Kvalheim, A. , 1939
Røros kobberverk Solskinnfeltet.
;Norges geologiske undersøkelse;FAGRAPPORT;Bergarkivet; No.BA 1365;8 pages
Abstract:
Dokumentet er en uttalelse til Handelsdepartementets Industrikontor ang. forslag fra A/S Røros Kobberverk om diamantboring i Solskinnsfeltet m.m. Det resymerer resultatene fra tidligere undersøkelse, og gir anbefalinger relevant til en videre oppfaring av forekomsten og tilretteleggelse for drift.

Singsaas, P.; Brækken, H. , 1944
Geofysiske undersøkelser Solskinnsfeltet.
;Norges geologiske undersøkelse;FAGRAPPORT;NGU-rapport; No.37;13 pages
Abstract:
Oppgaven var å undersøke om det i Østre Storwartz-område skulle finnes driv- verdige malmforekomster. Etter kobberverkets ønske ble feltet utvidet mot syd slik at man fikk gjort nye målinger i Solskinnsfeltet. Det var viktig å få fastlagt utstrekningen av Olavs-malmen noe nøyere. Olavsmalmen ble funnet ved el.magn. målinger i 1935 GM Rapport nr. 4. Også ved foreliggende undersøkelse ble det gjort el.magn. målinger (turam) dels ved induktiv, dels ved konduktiv strømtilførsel til undergrunnen. Det ble målt et felt på 4,5-5 km2. Målingene ga grunnlag for en detaljert og nøyaktig bestemmelse av Olavsmalmens utstrek- ning. Malmrestens i Gamle Solskinn Grube ble også nøyere kartlagt. Over Ny- berget- og Nye Solskinn Gruber ble det ikke observert indikasjoner på gjen- stående malm. Målingene over Hestkletten- og Kvintus Grube viser at det gjen- står mindre partier malm langs gruberummenes yttergrenser og i mittelen mellom dem. Østre del av malmen i Nye Storwartz Grube faller inn under Hestkletten Grube. Det kan foreløpig ikke sies noe sikkert om Storwartzmaømen fortsetter videre mot øst. Ved målingene ble det dessuten observert indikasjoner på en langstrakt leder beliggende 100 meter nordvest for Olavsmalmen og likedan på en mindre leder beliggende ca. 400 meter nord for Bukkhaugen.

Singsaas, Per , 1981
Turammålinger Solskinnsfeltet.
;Norges geologiske undersøkelse;FAGRAPPORT;NGU-rapport; No.1385;13 pages
Abstract:
De er utført Turammålinger i alt 6 ganger på Olavsmalmen. Målingene i 1975 ble utført på NGU's initiativ uten tanke på malmfunn. Målingene ble gjort fordi en ønsket å få kartlagt det "endelige" feltbilde over forekomsten etter at driften i Olavsgruva var innstilt for godt. Rapporten summerer opp resultatene fra alle utførte Turammoppdrag på Olavsmalmen i årene 1935, 1943, 1944, 1966, 1967 og 1975. Oppdatert versjon pr. 1981.

References not to be found in NGU's Reference Archive.:
H. Dahle, 1894: Røros Kobberværk (1644-1894). Trykket manuskript.


Johan Braastad 1920: Beskrivelse av Rørosgruberne. 56 pp. Norges Geologisk Undersøkelse 1920.


K.L. Bøckman 1942: Rørosviddas malmforekomster, in Rørosbokkkomiteen (ed.) Rørosboka, vol 1, p.53-71. Globusforlaget A/S, Trondheim 1942.


T. Gjestland, 1992: Gruvene i Storwartzfeltet, 32 p. Published by Bergstuderendes Forening, Olavsgruvas venner.

Fieldsamples
Sample No. Sample type Miscellanrous
G. SOLSKINN 20-1 Dump
Sampler :T. Bjerkgård
Comment :Lenses of chalcopyrite, sphalerite and pyrrhotite in chlorite-rich schist
No. of registrated element analyses = 1
ST0390.01 Dump
Sampler :T. Bjerkgård/...Stored :Løkken/...Size(kg) :3
Comment :Massive fine-grained pyrrhotite with minor sphalerite and irregular lenses of chalcopyrite. Some small fragments of quartz and chlorite schist.
No. of registrated element analyses = 1
ST0390.02 Dump
Sampler :T. Bjerkgård/...Stored :Løkken/...Size(kg) :3
Comment :Veins and bands of fine-grained sphalerite, impregnation of chalcopyrite and pyrrhotite in chlorite-quartz rock with mm porphyroblasts of biotite and garnet.
No. of registrated element analyses = 1
ST0390.03 Dump
Sampler :T. Bjerkgård/...Stored :Løkken/...Size(kg) :3
Comment :Irregular lenses and aggregates of sphalerite, chalcopyrite and pyrrhotite in garnet-rich, biotite-bearing quartz rock. Garnet is fine-grained (< 1 mm).
No. of registrated element analyses = 1
ST0390.04 Dump
Sampler :T. Bjerkgård/...Stored :Løkken/...Size(kg) :3
Comment :Fine-grained massive pyrrhotite with sphalerite and chalcopyrite. Irregularly distributed sulfides in lenses. Contains fragments of quartz and chlorite up to 1-2 cm in size.
No. of registrated element analyses = 1
400038 Dump
Sampler :MINDEX ASA
No. of registrated element analyses = 1
400039 Dump
Sampler :MINDEX ASA
No. of registrated element analyses = 1
NB! All analyse values are shown at the end of the printout.:

Name of Sample point : Gamle Solskinn
(Object Id : 1640,079,00,01)
Location
County : Sør-Trøndelag (16) Municipality : Røros (1640)
Map 1:50000: Røros (1720-3) Map 1:250000: Røros
Marking point: Longitude: 11.5692820 Latitude: 62.6321540
EU89-UTM Zone 32 (Coordinates IS confirmed)
X-coord: 631749 m. Y-coord: 6947229 m.
Commodity
Main Type: Base metals (Cu,Zn,Pb,Fe sulphides, As,Sb,Bi,Sn) Sub Type: Copper
Element(s): Cu Kis


Information(s) in free text format
Free text
Delvis gjenfylte dagskjæringer i gruva. Bergarten blottlagt er vesentlig kvarts- og sericittrik klorittskifer med spredte granater. Ofte laminert på mm til cm-skala mellom kvarts-sericittrike og kvarts-klorittrike lag (prøve ST0390.05). Mineralisering er også blottlagt i form av opptil 0.5 m mektig lag, fullstendig dominert av magnetkis (prøve ST0390.06).

Fieldsamples
Sample No. Sample type Miscellanrous
ST0390.05 Bedrock
Sampler :T. Bjerkgård/...Stored :Løkken
Comment :Quartz and sericite rich chlorite schist with scattered mm-sized garnet.
No. of registrated element analyses = 2
No. of registrated oxide analyses = 1
ST0390.06 Bedrock
Sampler :T. Bjerkgård/...Stored :Løkken
Comment :Massive 0.5 m thick layer of pyrrhotite, surrounded by chlorite schist.
No. of registrated element analyses = 2
No. of registrated oxide analyses = 1
NB! All analyse values are shown at the end of the printout.:

Name of Locality : Gamle Solskinn
(Object Id : 1640,079,01,00)
Location
County : Sør-Trøndelag (16) Municipality : Røros (1640)
Map 1:50000: Røros (1720-3) Map 1:250000: Røros
Marking point: Longitude: 11.5705910 Latitude: 62.6337470
EU89-UTM Zone 32 (Coordinates IS confirmed)
X-coord: 631810 m. Y-coord: 6947410 m.
Commodity
Main Type: Base metals (Cu,Zn,Pb,Fe sulphides, As,Sb,Bi,Sn) Sub Type: Copper
Element(s): Cu Kis
Production
Activity: Pitting Reserves:
Prod. method: Production:
Prod. status: Volume of dump:


Information(s) in free text format
Free text
Små røskegroper umiddelbart nord for tipphaugene på Gamle Solskinn.

Fieldsamples
Sample No. Sample type Miscellanrous
ST0390.07 Bedrock
Sampler :T. Bjerkgård/...Stored :Løkken
Comment :Garnet rich quartzitic chlorite and sericite bearing schist with 1-10 mm bands of sphalerite dissemination. Subordinate chalcopyrite.
No. of registrated element analyses = 2
No. of registrated oxide analyses = 1
ST0390.08 Bedrock
Sampler :T. Bjerkgård/...Stored :Løkken
Comment :Garnet rich quartzitic chlorite and sericite bearing schist with 1-10 mm bands of chalcopyrite and sphalerite dissemination.
No. of registrated element analyses = 2
No. of registrated oxide analyses = 1
NB! All analyse values are shown at the end of the printout.:

Analyse Results
from
Deposit Area 1640 - 079 Gamle Solskinn

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#
G. SOLSKINN 20-1 Dump 11550 90900 118 161 31 3.0 157.0
ST0390.01 Dump 24839 48916 249 279 27 -.3 143.0
ST0390.02 Dump 1626 19035 27 19 6 -.3 4.0
ST0390.03 Dump 8331 16566 84 32 11 .4 144.0
ST0390.04 Dump 27928 39702 216 361 50 3.6 102.0
ST0390.05 Bedrock 93 150 8 22 74 -.1 -1.0
ST0390.05 Bedrock
ST0390.06 Bedrock 54 153 9 22 78 -.1 3.0
ST0390.06 Bedrock
ST0390.07 Bedrock
ST0390.07 Bedrock 1509 45187 141 23 11 1.4 135.0
ST0390.08 Bedrock
ST0390.08 Bedrock 9951 7545 38 11 7 5.0 432.0
400038 Dump 24400 7672 14 319 23 3.8 16.0
400039 Dump 4583 65000 60 174 17 2.2 81.0
------------------
Sample No. Pt# Pd# As* Cd* Ba* Mo* Sn* Sb* Bi*
G. SOLSKINN 20-1 -5.0 1.0 2 215.0 190 94.00 3 -1 17
ST0390.01 -1.0 -1.0 -2 201.5 6 4.00 -3 80
ST0390.02 1.0 -1.0 -2 74.8 57 -1.00 -3 4
ST0390.03 -1.0 -1.0 -2 64.4 5 1.00 -3 37
ST0390.04 2.0 6.0 -2 95.5 30 14.00 -3 -3
ST0390.05 -1 -.1 73 1.00 -1 -1 -1
ST0390.05 445
ST0390.06 -1 .1 32 2.00 1 -1 -1
ST0390.06 77
ST0390.07 38
ST0390.07 8 118.6 32 3.00 1 -1 2
ST0390.08 20
ST0390.08 3 20.4 14 7.00 1 -1 2
400038 32 26.1 6 5.00 3 11
400039 65 131.7 12 3.00 3 18
------------------
Sample No. Se* Ga* Ge* In* S% V* Cr* Mn* Fe%
G. SOLSKINN 20-1 59.00 17.00 -1.00 4.00 94 72 3640 25.00
ST0390.01 7 -1 270 43.20
ST0390.02 41 29 320 5.79
ST0390.03 25 37 950 7.34
ST0390.04 20 16 211 39.42
ST0390.05 -1.00 10.00 -1.00 .08 63 88 917 4.37
ST0390.05 .10 149 149
ST0390.06 -1.00 15.00 -1.00 -.01 122 134 869 5.31
ST0390.06 -.10 131 188
ST0390.07 1.85 39 88
ST0390.07 8.00 9.00 2.00 .99 26 36 334 3.21
ST0390.08 1.13 28 36
ST0390.08 13.00 5.00 1.00 1.15 21 47 245 3.25
400038 10 23 216 10.00
400039 19 183 620 10.00
------------------
Sample No. Th* U* W* Rb* Sr* Y* Zr* Nb* Ta*
G. SOLSKINN 20-1 5.00 2.00 -1 9.00 -1.00
ST0390.01 4.00 -8.00 -2 1.0
ST0390.02 3.00 -8.00 -2 1.0
ST0390.03 4.00 -8.00 -2 4.0
ST0390.04 -2.00 -8.00 -2 1.0
ST0390.05 10.00 2.00 2 29.0
ST0390.05 -10 72.0 119.0 34.0 199 11.00
ST0390.06 9.00 2.00 2 24.0
ST0390.06 -10 8.0 292.0 28.0 186 16.00
ST0390.07 95 -5.0 5.0 9.0 41 -5.00
ST0390.07 1.00 -1.00 8 -1.0
ST0390.08 -10 -5.0 10.0 7.0 35 -5.00
ST0390.08 1.00 -1.00 7 -1.0
400038 1.0
400039 0.5
------------------
Sample No. La* Ce* Nd* Yb* B* Li* F* P* Cl*
G. SOLSKINN 20-1 19 260
ST0390.01 -1.00 26
ST0390.02 4.00 -3
ST0390.03 10.00 -3
ST0390.04 3.00 6
ST0390.05 27.00 -1
ST0390.05 98.00 28.00 -16.00 -1000 -1000
ST0390.06 27.00 -1
ST0390.06 115.00 -10.00 -16.00 -1000 -1000
ST0390.07 -15.00 26.00 -16.00 -1000 -1000
ST0390.07 3.00 -1
ST0390.08 -15.00 -10.00 -16.00 -1000 -1000
ST0390.08 4.00 -1
400038 1.00
400039 2.00
------------------
Sample No. Sc* Ti* Te* Hg* Tl*
G. SOLSKINN 20-1 16.00 3400 3.00
ST0390.01
ST0390.02
ST0390.03
ST0390.04
ST0390.05 -1.00 -1 -1
ST0390.05 22.00
ST0390.06 -1.00 -1 -1
ST0390.06 25.00
ST0390.07 -10.00
ST0390.07 -1.00 3 -1
ST0390.08 -10.00
ST0390.08 1.00 1 -1
400038 100
400039 100

Oxide analyses
( All values are in % )
Sample No. Sample Type SiO2 Al2O3 TiO2 Fe2O3 MnO MgO CaO
ST0390.05 Bedrock 52.88 16.38 0.95 8.07 0.16 4.84 5.51
ST0390.06 Bedrock 60.79 3.05 0.10 28.97 0.14 0.43 1.19
ST0390.07 Bedrock 64.58 0.82 0.02 30.09 0.06 0.09 1.05
ST0390.08 Bedrock 72.28 0.62 0.02 24.03 0.04 0.07 0.68
------------------
Sample No. Na2O K2O P2O5 Sum
ST0390.05 1.76 2.65 0.19 93.00
ST0390.06 -0.10 0.93 0.14 96.00
ST0390.07 -0.10 -0.01 0.01 97.00
ST0390.08 -0.10 -0.01 -0.01 98.00

The fact sheet was created on 19.05.2024
Questions or comments regarding the fact sheet can be emailed to:
ressursdatabaser@ngu.no
Copyright © 2024 Geological Survey of Norway