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THE ORE DATABASE
Occurence 5042 - 019 Langvika
(Object Id: 344)
(Last updated: 14.12.1998)
Location
County: Trøndelag Municipality: Lierne (5042)
Map 1:50000: Tunnsjøen (1924-3) Map 1:250000: Grong
Coordinate system: EU89-UTM Zone 33
East: 429806 m. North: 7173499 m.
Longitude: 13.5290150 Latitude: 64.6790360
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Resource
Resource Type: Base metals (Cu,Zn,Pb,Fe sulphides, As,Sb,Bi,Sn) Resource Subtype: Copper
Element(s): Cu
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
1971 - 1971 Geophysics Company/Institution :NGU
1971 - 1971 Sampling Company/Institution :NGU
1974 - 1974 Geophysics Company/Institution :Grong Gruber A/S
1991 - 1991 Sampling Company/Institution :NGU

Mineralization
Era: Paleozoic Period: Ordovician
Genesis: Unknown Form: Irregular
Main texture: Structureless Min. distribution: Disseminated (<20 % ore minerals)
Main grain size: Medium grained (1-3 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: Gjersvik Nappe
Igneous complex:
Group: Limingen Formation:

Mineralogy
Relationship Mineral Amount
Gangue mineral Plagioclase Major mineral (>10%)
Gangue mineral Muscovite Major mineral (>10%)
Gangue mineral Quartz Major mineral (>10%)
Gangue mineral Chlorite Subordinate mineral (1-10%)
Gangue mineral Titanite Accessory mineral (<1%)
Ore mineral Chalcopyrite Major mineral (>10%)
Ore mineral Molybdenite Subordinate mineral (1-10%)

Lithology:
Relationship Rock Origin
Host rock Arkose Sedimentary
Original rock :Arkosic sandstone
Metamorphic facies :Greenschist

Structures
Location: Type: Orientation(360 gr.): Relation to min.:
Host rock Primary layering Strike/Dip :75 / 15 Pre-mineralisation ;...Effect :None

Information(s) in free text format
Free text
Mineraliseringen ligger ved sørenden av Tunnsjøen, ca. 6 km vest for Tunnsjø kapell, på en markert kolle i åpent hogstterreng i Hansvika ved enden av en ny skogsbilvei. Den mineraliserte sonen er ca. 2 m mektig i arkose som veksler med kalkfyllitt. Få og små granittiske boller finnes i arkosen. Kobberkis opptrer i hovedsak på stikk og sprekker i arkosen og dels sammen med kvarts og kalkspat på årer. Mineraliseringen er ujevn og fattig.

Bibliography:
References not to be found in NGU's Reference Archive.:



Fieldsamples
Sample No. Sample type Miscellanrous
LS91136 Bedrock
Sampler: Størseth, L.R.
Comment: Chalcopyrite dissemination and along cracks in arkose and chalcopyrite in quartz veinlets.
No. of registrated element analyses = 1
LS91137 Bedrock
Sampler: Størseth, L.R.
Comment: Chalcopyrite dissemination and along cracks in arkose.
No. of registrated element analyses = 1
1188 Bedrock
No. of registrated element analyses = 1
1189 Bedrock
No. of registrated element analyses = 1
1190 Bedrock
No. of registrated element analyses = 1
1191 Bedrock
No. of registrated element analyses = 1
1192 Bedrock
No. of registrated element analyses = 1
1193 Bedrock
No. of registrated element analyses = 1
1194 Bedrock
No. of registrated element analyses = 1
NB! All analyse values are shown at the end of the printout.:

Analyse Results
from
Deposit Area 5042 - 019 Langvika

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#
LS91136 Bedrock 7461 41 9 17 19 16.0 64.0
LS91137 Bedrock 6014 23 13 10 9 13.8 85.0
1188 Bedrock 15686 9 61 2 1 78.7 574.0
1189 Bedrock 3552 9 9 2 1 52.7 252.0
1190 Bedrock 19046 2 44 6 1 14.2 40.0
1191 Bedrock 22951 20 2 17 1 29.3 26.0
1192 Bedrock 38811 4 3 4 1 79.6 323.0
1193 Bedrock 16697 1 7 2 1 31.9 166.0
1194 Bedrock 8419 34 26 13 15 18.4 144.0
------------------
Sample No. Pt# Pd# As* Cd* Ba* Mo* Sb* Bi* S%
LS91136 1.0 1.0 3 2.6 4 8.00 2 2 .57
LS91137 1.0 1.0 7 1.2 15 991.00 2 3 .86
1188 4.0 7.0 9 3.1 1 28.00 4 24 .97
1189 1.0 2.0 6 .9 1 5.00 2 2 .32
1190 1.0 2.0 3 1.2 4 168.00 2 2 1.85
1191 1.0 2.0 3 2.5 11 38.00 2 2 2.46
1192 1.0 3.0 8 3.6 13 155.00 3 2 3.62
1193 1.0 5.0 3 1.4 14 807.00 2 2 1.52
1194 1.0 2.0 10 2.2 3 12.00 2 2 .73
------------------
Sample No. V* Cr* Mn* Fe% Th* U* W* Sr* La*
LS91136 48 16 1258 5.81 1.00 5.00 1 167.0 6.00
LS91137 17 29 427 3.67 1.00 5.00 1 16.0 5.00
1188 4 1 127 1.96 1.00 5.00 1 22.0 7.00
1189 9 1 543 1.49 1.00 6.00 1 211.0 4.00
1190 4 1 106 2.75 2.00 5.00 1 5.0 7.00
1191 4 1 304 4.58 1.00 5.00 1 9.0 5.00
1192 1 1 74 4.09 2.00 5.00 1 6.0 6.00
1193 2 1 51 1.57 2.00 5.00 1 9.0 7.00
1194 43 10 1758 4.78 1.00 16.00 1 492.0 5.00
------------------
Sample No. B*
LS91136 2
LS91137 2
1188 10
1189 7
1190 8
1191 8
1192 8
1193 8
1194 5

The fact sheet was created on 02.05.2024
Questions or comments regarding the fact sheet can be emailed to:
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