Norsk versjon | |||||
THE ORE DATABASE | |||||
Occurence 5061 - 004 Lomunda | |||||
(Object Id: 4620) (Last updated: 13.04.2020) |
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Location |
County: | Trøndelag | Municipality: | Rindal (5061) |
Map 1:50000: | Løkken (1521-3) | Map 1:250000: | Trondheim |
Coordinate system: | EU89-UTM Zone 32 |
East: | 516835 m. | North: | 6999839 m. |
Longitude: | 9.3338250 | Latitude: | 63.1275070 |
Show on map |
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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: | Pitting | Reserves: | ||
Operating method: | Historical production: |
Operations |
From - To | Activity | Comments | |
1982 - 1982 | Geology | Company/Institution :Orkla Gruber | |
1982 - 1982 | Geophysics | Company/Institution :Orkla Gruber |
Mineralization |
Era: | Paleozoic | Period: | Ordovician | |
Genesis: | Volcex | Form: | Layer | |
Main texture: | Banded | Min. distribution: | Massive (>50 % ore minerals) |
Main grain size: | Medium grained (1-3 mm) | Main alteration: | Chloritisation |
Strike/Dip: | 75 / 45 | 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 | Greenschist | Extrusive Original rock :Basalt |
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Metamorphic facies :Greenschist |
Structures |
Location: | Type: | Orientation(360 gr.): | Relation to min.: | |
Wall rock | Foliation | Strike/Dip :75 / 35 | Post-mineralisation ;...Effect :Modifies |
Information(s) in free text format |
Free text |
Forekomsten ligger rett på østsida av elva Lomunda. I bunnen av en brattskrent er det sprengt ut en kort stoll, kun 2,5 m lang med retning 70°, to meter over elvenivå. En sone med massive sulfider ligger i sterkt deformert grønnskifer som antas lå tilhøre den øvre sekvensen av grønnstein i Løkken-området. Den massive sulfidsonen er minst 1,2 m mektig og består av fin- til middelskornet pyritt med kun spor av kobberkis og med kvartsrik matriks. Den er best blottet i elvebredden. Tidligere undersøkelser, inkludert geofysiske målinger (Turam og VLF) og geologisk kartlegging har vist at sulfidsonen kan følges videre vestsørvestover over en lengde på 5-6 km (Bollingmo 1983). |
Bibliography: |
References not to be found in NGU's Reference Archive.: |
Bollingmo, Å. 1983. The Lomunda Area. BV 1812, 7s. + vedlegg. |
Fieldsamples |
Sample No. | Sample type | Miscellanrous | ||||
JS-M1951 | Dump |
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JS-M1952 | Bedrock |
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NB! All analyse values are shown at the end of the printout.: |
Name of Locality: Skjerp 1 |
(Object Id: 36875 4,01,00) |
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Location |
County: | Trøndelag | Municipality: | Rindal (5061) |
Map 1:50000: | Løkken (1521-3) | Map 1:250000: | Trondheim |
Coordinate system: | EU89-UTM Zone 32 |
East: | 515370 m. | North: | 6998894 m. |
Longitude: | 9.3047020 | Latitude: | 63.1190950 |
Show on map |
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Resource |
Resource Type: | Base metals (Cu,Zn,Pb,Fe sulphides, As,Sb,Bi,Sn) | Resource Subtype: | Sulphides | |
Element(s): | Kis |
Name of Locality: Skjerp 2 |
(Object Id: 36876 4,02,00) |
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Location |
County: | Trøndelag | Municipality: | Rindal (5061) |
Map 1:50000: | Løkken (1521-3) | Map 1:250000: | Trondheim |
Coordinate system: | EU89-UTM Zone 32 |
East: | 515166 m. | North: | 6998787 m. |
Longitude: | 9.3006290 | Latitude: | 63.1181430 |
Show on map |
|
Resource |
Resource Type: | Base metals (Cu,Zn,Pb,Fe sulphides, As,Sb,Bi,Sn) | Resource Subtype: | Sulphides | |
Element(s): | Kis |
Name of Locality: Skjerp 3 |
(Object Id: 36877 4,03,00) |
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Location |
County: | Trøndelag | Municipality: | Rindal (5061) |
Map 1:50000: | Løkken (1521-3) | Map 1:250000: | Trondheim |
Coordinate system: | EU89-UTM Zone 32 |
East: | 514809 m. | North: | 6998481 m. |
Longitude: | 9.2935440 | Latitude: | 63.1154030 |
Show on map |
|
Resource |
Resource Type: | Base metals (Cu,Zn,Pb,Fe sulphides, As,Sb,Bi,Sn) | Resource Subtype: | Sulphides | |
Element(s): | Kis |
Analyse Results |
from |
Deposit Area 5061 - 004 Lomunda |
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-M1951 | Dump | 200 | 327 | 10 | 18 | 57 | .3 | 3.0 |
JS-M1952 | Bedrock | 126 | 353 | 5 | 21 | 39 | .2 | 6.0 |
------------------ |
Sample No. | Pt# | Pd# | As* | Cd* | Ba* | Mo* | Sn* | Sb* | Bi* |
JS-M1951 | -5.0 | -1.0 | 179 | 1.1 | 40 | 7.84 | 0 | 1 | 0 |
JS-M1952 | -5.0 | -1.0 | 294 | 1.6 | 20 | 11.90 | 0 | 1 | 0 |
------------------ |
Sample No. | Se* | Ga* | Ge* | In* | S% | V* | Cr* | Mn* | Fe% |
JS-M1951 | 3.00 | 2.21 | 0.46 | 0.05 | 10.00 | 56 | 19 | 890 | 36.90 |
JS-M1952 | 3.00 | 2.01 | 0.39 | 0.04 | 10.00 | 44 | 13 | 265 | 32.00 |
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Sample No. | Th* | U* | W* | Rb* | Sr* | Y* | Zr* | Nb* | Ta* |
JS-M1951 | 0.98 | 1.80 | -0 | 2.8 | 45.0 | 7.3 | 12 | 0.60 | 0.05 |
JS-M1952 | 0.82 | 0.60 | -0 | 3.4 | 12.2 | 4.2 | 11 | 0.30 | -0.05 |
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Sample No. | Cs* | La* | Ce* | Li* | Be* | Na* | Mg* | Al* | P* |
JS-M1951 | 0.18 | 7.10 | 12.30 | 1 | 0 | 0 | 0 | 1 | 1760 |
JS-M1952 | 0.12 | 2.10 | 4.48 | 3 | 0 | 0 | 0 | 1 | 130 |
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Sample No. | K * | Ca* | Sc* | Ti* | Te* | Hf* | Re* | Tl* | |
JS-M1951 | 0 | 3 | 2.20 | 0 | 0.16 | 0.30 | 10 | 0 | |
JS-M1952 | 0 | 1 | 3.00 | 0 | 0.05 | 0.30 | 8 | 0 |
The fact sheet was created on 26.04.2024 |
Questions or comments regarding the fact sheet can be emailed to: ressursdatabaser@ngu.no |
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