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THE ORE DATABASE
Occurence 5059 - 013 Åmotsgruva
(Object Id: 4250)
(Last updated: 13.04.2020)

Location
County: Trøndelag Municipality: Orkland (5059)
Map 1:50000: Hølonda (1521-2) Map 1:250000: Trondheim
Coordinate system: EU89-UTM Zone 32
East: 541782 m. North: 6999969 m.
Longitude: 9.8285020 Latitude: 63.1266430
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Resource
Resource Type: Base metals (Cu,Zn,Pb,Fe sulphides, As,Sb,Bi,Sn) Resource Subtype: Copper
Element(s): Kis Cu
Importance
Raw material meaning: Not Assessed (reg. 18.02.2015)

Resources and production
Activity: Mining Reserves:
Operating method: Underground mining Historical production:


Operations
From - To Activity Comments
1982 - 1983 Geology Company/Institution :Orkla Industrier A/S
1982 - 1983 Geophysics Company/Institution :Orkla Industrier A/S
1983 - 1983 Core drilling Company/Institution :Orkla Industrier A/S

Mineralization
Era: Paleozoic Period: Ordovician
Genesis: Volcex Form: Lens
Main texture: Banded Min. distribution: Massive (>50 % ore minerals)
Main grain size: Fine grained (< 1 mm) Main alteration:
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 Quartz Major mineral (>10%)
Gangue mineral Mica Subordinate mineral (1-10%)
Ore mineral Pyrite Major mineral (>10%)
Ore mineral Chalcopyrite Accessory mineral (<1%)

Lithology:
Relationship Rock Origin
Wall rock Greenstone Extrusive
Original rock :Basalt
Metamorphic facies :Greenschist

Information(s) in free text format
Free text
Kisgruva ligger ca. 220 m SSØ for Kobbergruva og består av en vannfylt synk med sidevegger på 12 x 4 m på østsiden av en brattskrent med massiv grønnstein. Tippmateriale er svært forvitret, men ser ut til å domineres av svært finkornet, massiv pyritt i chert-matriks. Tippen er stor og har et volum på ca. 2.500 m3.

Bibliography:
References not to be found in NGU's Reference Archive.:
Bollingmo, Å. 1983. The Åmot Area. BV 1814, 6s. + vedlegg


Bollingmo, Å. 1984. The Åmot Area: diamond drilling, IP and geological mapping. BV 1694, 7s. + vedlegg

Fieldsamples
Sample No. Sample type Miscellanrous
JS-M1941 Dump
Sampler: J.S. Sandstad/...Stored: Løkken/...Size(kg): 2
Comment: Massive pyrite, very fine grained, chalcopyrite joints ('vasskis')
No. of registrated element analyses = 1
NB! All analyse values are shown at the end of the printout.:


Analyse Results
from
Deposit Area 5059 - 013 Åmotsgruva

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#
JS-M1941 Dump 4600 124 80 47 28 14.6 211.0
------------------
Sample No. Pt# Pd# As* Cd* Ba* Mo* Sn* Sb* Bi*
JS-M1941 -5.0 -1.0 454 .8 10 70.90 0 4 3
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Sample No. Se* Ga* Ge* In* S% V* Cr* Mn* Fe%
JS-M1941 120.00 1.11 0.58 0.24 10.00 30 12 233 30.00
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Sample No. Th* U* W* Rb* Sr* Y* Zr* Nb* Ta*
JS-M1941 0.01 7.80 -0 0.1 3.2 0.9 1 -0.10 -0.05
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Sample No. Cs* La* Ce* Li* Be* Na* Mg* Al* P*
JS-M1941 -0.05 -0.50 0.39 1 0 -0 0 0 10
------------------
Sample No. K * Ca* Sc* Ti* Te* Hf* Re* Tl*
JS-M1941 -0 0 0.40 0 11.45 -0.10 13 1


The fact sheet was created on 07.05.2024

Questions or comments regarding the fact sheet can be emailed to:
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