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THE ORE DATABASE
Occurence 5042 - 012 Lauvsjølia
(Object Id: 295)
(Last updated: 10.12.1998)
Location
County: Trøndelag Municipality: Lierne (5042)
Map 1:50000: Nordli (1923-4) Map 1:250000: Grong
Coordinate system: EU89-UTM Zone 33
East: 434381 m. North: 7141899 m.
Longitude: 13.6390490 Latitude: 64.3964810
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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:


Products
Element/product Crude ore grade or quality Reg. date
Cu 1.3 % 18.03.1993

Operations
From - To Activity Comments
1956 - 1956 Geophysics Company/Institution :Orkla Gruber A/S
1964 - 1964 Geophysics Company/Institution :Elkem A/S
1972 - 1974 Geophysics Company/Institution :Grong Gruber A/S
1972 - 1975 Geology Company/Institution :Grong Gruber A/S
1976 - 1976 Core drilling Company/Institution :Grong Gruber A/S
1991 - 1991 Sampling Company/Institution :NGU

Mineralization
Era: Paleozoic Period:
Genesis: Volcex Form: Lens
Main texture: Structureless Min. distribution: Disseminated (<20 % ore minerals)
Main grain size: Fine grained (< 1 mm) Main alteration: Chloritisation
Strike/Dip: 300 / 25 Direction:
Plunge:
Stratigraphic classification of host rock
Era: Paleozoic Period:
Province: Caledonides
Geotec.unit: Køli Nappe Complex
Tectonic complex: Bjørkvatn Nappe
Igneous complex:
Group: Nordli Formation:

Mineralogy
Relationship Mineral Amount
Gangue mineral Amphibole Major mineral (>10%)
Gangue mineral Plagioclase Major mineral (>10%)
Gangue mineral Garnet Subordinate mineral (1-10%)
Gangue mineral Chlorite Subordinate mineral (1-10%)
Gangue mineral Quartz Subordinate mineral (1-10%)
Ore mineral Pyrrhotite Major mineral (>10%)
Ore mineral Chalcopyrite Subordinate mineral (1-10%)
Ore mineral Pyrite Subordinate mineral (1-10%)
Ore mineral Molybdenite Accessory mineral (<1%)

Lithology:
Relationship Rock Origin
Host rock Garnet amphibolite Extrusive
Original rock :Basalt
Metamorphic facies :Amphibolite

Structures
Location: Type: Orientation(360 gr.): Relation to min.:
Host rock Foliation Strike/Dip :300 / 25 Post-mineralisation ;...Effect :Modifies

Information(s) in free text format
Free text
Mineraliseringen opptrer i veiskjæringer nordvest for gården Løvsjøli. Den rikeste mineraliseringen består av en 0.5 m mektig kobber-magnetkis sone i et miljø av granatførende hornblendegneis, granat-klorittfels som representerer omvandlet granatamfibolitt. Bergartene er dels meget grovkornete. Mineraliseringen består i hovesak av svak disseminasjon av magnetkis, kobberkis og svovelkis. I borhull 1/76 (Grong Gruber A/S) ble et sulfidmineralisert parti på 4.5 m påvist. Sulfidene er magnetkis og svovelkis med spor av kobberkis. I borhull 2/76 er sulfidene knyttet til keratofyr. Boringene forklarte EM-anomaliene.

Fieldsamples
Sample No. Sample type Miscellanrous
LS91164 Bedrock
Sampler: Størseth, L.R.
Comment: Pyrrhotite-chalcopyrite dissemination in chloritised rock.
No. of registrated element analyses = 1
LS91165 Bedrock
Sampler: Størseth, L.R.
Comment: Pyrrhotite dissemination in garnet veinlets.
No. of registrated element analyses = 1
LS91166 Bedrock
Sampler: Størseth, L.R.
Comment: Pyrrhotite dissemination in coarse grained amphibolite.
No. of registrated element analyses = 1
LS91167 Bedrock
Sampler: Størseth, L.R.
Comment: Pyrrhotite-(chalcopyrite) dissemination in coarse grained amphibolite.
No. of registrated element analyses = 1
LS91168 Bedrock
Sampler: Størseth, L.R.
Comment: Pyrrhotite-chalcopyrite ore.
No. of registrated element analyses = 1
NB! All analyse values are shown at the end of the printout.:

Analyse Results
from
Deposit Area 5042 - 012 Lauvsjølia

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#
LS91164 Bedrock 819 44 2 40 40 .2 3.0
LS91165 Bedrock 684 16 2 127 48 .1 1.0
LS91166 Bedrock 859 23 2 166 26 .1 4.0
LS91167 Bedrock 8510 21 2 249 45 1.2 25.0
LS91168 Bedrock 31658 35 2 214 39 5.1 135.0
------------------
Sample No. Pt# Pd# As* Cd* Ba* Mo* Sb* Bi* S%
LS91164 1.0 3.0 2 .2 4 2.00 2 2 1.34
LS91165 1.0 2.0 2 .2 12 10.00 2 2 3.16
LS91166 1.0 2.0 2 .2 2 4.00 2 2 5.58
LS91167 1.0 1.0 2 .2 3 7.00 2 7 6.67
LS91168 1.0 1.0 2 1.9 2 8.00 2 2 8.35
------------------
Sample No. V* Cr* Mn* Fe% Th* U* W* Sr* La*
LS91164 101 62 535 6.89 1.00 5.00 1 6.0 2.00
LS91165 58 77 519 9.51 1.00 5.00 1 2.0 2.00
LS91166 92 31 332 11.03 1.00 5.00 1 3.0 2.00
LS91167 92 66 242 14.68 1.00 5.00 1 2.0 2.00
LS91168 134 37 341 16.23 1.00 5.00 1 1.0 2.00
------------------
Sample No. B*
LS91164 4
LS91165 5
LS91166 5
LS91167 4
LS91168 3

The fact sheet was created on 05.05.2024
Questions or comments regarding the fact sheet can be emailed to:
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