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THE ORE DATABASE
Occurence 5043 - 054 Vallervatnet
(Object Id: 340)
(Last updated: 22.12.1998)

Location
County: Trøndelag Municipality: Raarvihke (5043)
Map 1:50000: Jomafjellet (1924-1) Map 1:250000: Grong
Coordinate system: EU89-UTM Zone 33
East: 451031 m. North: 7195448 m.
Longitude: 13.9661950 Latitude: 64.8797120
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Resource
Resource Type: Base metals (Cu,Zn,Pb,Fe sulphides, As,Sb,Bi,Sn) Resource Subtype: Sulphides
Element(s): Kis
Importance
Raw material meaning: Not Assessed (reg. 18.02.2015)

Resources and production
Activity: Exploration Reserves:
Operating method: Historical production:


Operations
From - To Activity Comments
1991 - 1991 Sampling Company/Institution :NGU

Mineralization
Era: Paleozoic Period: Ordovician
Genesis: Sedimentary deposit Form: Irregular
Main texture: Structureless Min. distribution: Disseminated (<20 % ore minerals)
Main grain size: Fine grained (< 1 mm) Main alteration: No country rock alteration
Strike/Dip: Direction:
Plunge:
Stratigraphic classification of host rock
Era: Paleozoic Period: Ordovician
Province: Caledonides
Geotec.unit: Køli Nappe Complex
Tectonic complex: Orklump Nappe
Igneous complex:
Group: Røyrvik Formation:

Mineralogy
Relationship Mineral Amount
Gangue mineral Quartz Major mineral (>10%)
Gangue mineral Mica Subordinate mineral (1-10%)
Gangue mineral Graphite Subordinate mineral (1-10%)
Ore mineral Pyrite Major mineral (>10%)
Ore mineral Pyrrhotite Major mineral (>10%)

Lithology:
Relationship Rock Origin
Host rock Graphitic phyllite Sedimentary
Original rock :Argillaceous sediment
Metamorphic facies :Greenschist

Information(s) in free text format
Free text
Skjerp er ikke påvist i området. Mineraliseringen er et eksempel på svak jernsulfiddisseminasjon som er vanlig innenfor den dels grafittførende Røyrvikfyllitten. En dels fet grafittfyllitt er sterkt rusten i partier i vegskjæringer over flere ti-metre. Magnetkisinnholdet er lavt, men det finnes endel svovelkis både i bergarter og i en rekke kvartsårer, som opptrer parallelt skifrigheten. Inneholder < 0.01 % av alle basemetallene.

Fieldsamples
Sample No. Sample type Miscellanrous
LS91048 Bedrock
Sampler: Størseth, L.R.
Comment: Coarse grained pyrite crystals in graphitic phyllite.
No. of registrated element analyses = 1
LS91049 Bedrock
Sampler: Størseth, L.R.
Comment: Pyrite mineralisation in graphitic phyllite, local quartz lenses.
No. of registrated element analyses = 1
NB! All analyse values are shown at the end of the printout.:


Analyse Results
from
Deposit Area 5043 - 054 Vallervatnet

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#
LS91048 Bedrock 49 38 16 5 23 .1 3.0
LS91049 Bedrock 44 43 32 15 66 .2 12.0
------------------
Sample No. Pt# Pd# As* Cd* Ba* Mo* Sb* Bi* S%
LS91048 3.0 7.0 7 .2 14 5.00 2 2 1.02
LS91049 3.0 4.0 132 .2 15 19.00 5 2 6.75
------------------
Sample No. V* Cr* Mn* Fe% Th* U* W* Sr* La*
LS91048 11 13 263 1.82 2.00 5.00 1 6.0 4.00
LS91049 7 12 407 6.13 2.00 5.00 1 17.0 5.00
------------------
Sample No. B*
LS91048 2
LS91049 2


The fact sheet was created on 03.05.2024

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