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THE ORE DATABASE
Occurence 5032 - 002 Gammelgruva
(Object Id: 4430)
(Last updated: 03.05.2023)

Location
County: Trøndelag Municipality: Selbu (5032)
Map 1:50000: Tydal (1721-3) Map 1:250000: Trondheim
Coordinate system: EU89-UTM Zone 32
East: 621419 m. North: 7004092 m.
Longitude: 11.4095270 Latitude: 63.1456240
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Resource
Resource Type: Base metals (Cu,Zn,Pb,Fe sulphides, As,Sb,Bi,Sn) Resource Subtype: Copper
Element(s): Cu Co
Importance
Raw material meaning: Not Assessed (reg. 18.02.2015)

Resources and production
Activity: Mining Reserves:
Operating method: Open pit and underground mining Historical production: ,15 thousand tons


Operations
From - To Activity Comments
1713 - 1727 Regular production Company/Institution :Selboe kobberverk
1734 - 1764 Regular production
1826 - 1835 Test mining
1905 - 1906 Test mining Company/Institution :The Kjøli Mines Ltd

Mineralization
Era: Paleozoic Period: Ordovician
Genesis: Stockwork formation Form: Irregular
Main texture: Min. distribution: Semi-massive (20-50 % 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: Trondheim Nappe Complex
Tectonic complex:
Igneous complex:
Group: Fundsjø Formation:

Mineralogy
Relationship Mineral Amount
Ore mineral Chalcopyrite Major mineral (>10%)
Ore mineral Pyrrhotite Major mineral (>10%)
Ore mineral Pyrite Major mineral (>10%)
Ore mineral Magnetite Subordinate mineral (1-10%)

Lithology:
Relationship Rock Origin
Host rock Grønnskifer Extrusive
Original rock :Basalt
Metamorphic facies :Amphibolite
Wall rock Porfyrisk metadoleritt Intrusive
Original rock :Dolerite
Wall rock Kvartsporfyr
Wall rock Grønnskifer Extrusive
Original rock :Basalt
Metamorphic facies :Amphibolite

Structures
Location: Type: Orientation(360 gr.): Relation to min.:
Host rock Fold axis Post-mineralisation ;...Effect :Modifies
Host rock Foliation Post-mineralisation ;...Effect :Modifies

Fieldsamples
Sample No. Sample type Miscellanrous
ST0228.TGST93.015 Dump
Sampler: Grenne, T.
Comment: TGST93.015 Gjennomsnitt malm
No. of registrated element analyses = 1
ST0228.TGST93.016 Dump
Sampler: Grenne, T.
Comment: TGST93.016 Disseminert-semimassiv magnetkis-kobberkismalm
No. of registrated element analyses = 1
ST0228.TGST93.017 Dump
Sampler: Grenne, T.
Comment: TGST93.017 Finkornig massiv pyrittmalm, syd for Fallet
No. of registrated element analyses = 1
ST0228.TGST93.018 Dump
Sampler: Grenne, T.
Comment: TGST93.018 Finkornig tett disseminert magnetitt med litt kobberkis-magnetkis, Fallet
No. of registrated element analyses = 1
ST0228.TGST93.019 Dump
Sampler: Grenne, T.
Comment: TGST93.019 Middelskornig semimassiv magnetkis-pyritt-kobberkis, Fallet
No. of registrated element analyses = 1
NB! All analyse values are shown at the end of the printout.:


Analyse Results
from
Deposit Area 5032 - 002 Gammelgruva

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#
ST0228.TGST93.015 Dump 19950 773 23 312 -1 .8 6.0
ST0228.TGST93.016 Dump 9064 338 22 24 -1 .5 7.0
ST0228.TGST93.017 Dump 15414 387 43 286 -1 .7 14.0
ST0228.TGST93.018 Dump 1363 231 11 28 -1 -.3 1.0
ST0228.TGST93.019 Dump 25700 306 5 568 -1 1.4 13.0
------------------
Sample No. As* Cd* Ba* Mo* Sb* Bi* V* Cr* Mn*
ST0228.TGST93.015 17 1.8 3 3.00 -2 26 7 -1 182
ST0228.TGST93.016 6 1.8 -1 3.00 -2 2 3 -1 186
ST0228.TGST93.017 65 3.2 5 -1.00 -2 64 1 1 179
ST0228.TGST93.018 8 -.2 -1 3.00 -2 8 19 -1 307
ST0228.TGST93.019 43 3.4 -1 -1.00 -2 51 2 -1 164
------------------
Sample No. Fe% Th* U* W* Sr* La* B*
ST0228.TGST93.015 40.75 3.00 -5.00 3 2.0 -1.00 6
ST0228.TGST93.016 42.06 3.00 -5.00 2 1.0 -1.00 6
ST0228.TGST93.017 26.17 2.00 -5.00 2 2.0 -1.00 -3
ST0228.TGST93.018 46.96 3.00 -5.00 -2 2.0 -1.00 3
ST0228.TGST93.019 35.99 2.00 -5.00 6 2.0 1.00 5


The fact sheet was created on 04.05.2024

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