Norsk versjon | |||||
THE ORE DATABASE | |||||
Deposit Area 1742 - 022 | |||||
(Last updated 27.nov.1998) |
Name of Deposit Area : Gartland |
(Object Id : 1742,022,00,00) |
Location |
County : | Nord-Trøndelag (17) | Municipality : | Grong (1742) |
Map 1:50000: | Harran (1824-3) | Map 1:250000: | Grong |
Marking point: | Longitude: | 12.3640790 | Latitude: | 64.5699310 |
EU89-UTM Zone 33 | (Coordinates IS confirmed) |
X-coord: | 373731 m. | Y-coord: | 7163149 m. |
|
Commodity |
Main Type: | Base metals (Cu,Zn,Pb,Fe sulphides, As,Sb,Bi,Sn) | Sub Type: | Sulphides | |
Element(s): | Kis |
Production |
Activity: | Exploration | Reserves: | ||
Prod. method: | Production: | |||
Prod. status: | Volume of dump: |
Importance |
Public: | Not Assessed (reg. 18.02.2015) |
Economical: | Not classified/evaluated |
Operations |
From - To | Activity | Comments | |
1991 - 1991 | Sampling | Company/Institution :NGU |
Mineralization |
Era: | Period: | |||
Dating: | Method: | |||
Genesis: | Volcex | Form: | Layer | |
Main texture: | Min. distribution: | Disseminated (<20 % ore minerals) |
Main grain size: | Fine grained (< 1 mm) | Main alteration: |
Strike/Dip: | Direction: | |||
Plunge: |
Stratigraphic classification of host rock |
Era: | Period: |
Province: | Caledonides | |
Geotec.unit: | Helgeland Nappe Complex | |
Tectonic complex: | ||
Igneous complex: |
Group: | Formation: |
Mineralogy |
Relationship | Mineral | Amount | |
Gangue mineral | Calcite | Subordinate mineral (1-10%) | |
Gangue mineral | Quartz | Subordinate mineral (1-10%) | |
Ore mineral | Pyrrhotite | Major mineral (>10%) | |
Ore mineral | Pyrite | Subordinate mineral (1-10%) | |
Ore mineral | Chalcopyrite | Accessory mineral (<1%) |
Lithology: |
Relationship | Rock | Origin | |
Host rock | Mica schist | Sedimentary Original rock :Greywacke |
|
Metamorphic facies :Amphibolite | |||
Host rock | Amphibolite | Extrusive Original rock :Basalt |
|
Metamorphic facies :Amphibolite |
Information(s) in free text format |
Free text |
Beliggenhet. ------------ Markerte vegskjæringer (både gammel og ny vei) ved Steingardssetran ca. 6 km N for Gartland. Geologi. -------- Gale nevner magnetkismineralisering på dette stedet, og angir mineraliseringen til å være 15 m mektig med opptil 30 cm tykke bånd av massiv magnetkis. Magnetkis opptrer vesentlig i semimassiv form, lokalt dominerer pyritt. Vegskjæringen er ikke mange år gammel, og rustforvitringen er ikke kommet igang. Dette gjør at malmsonen er breiere enn den ser ut for. Vertsbergarten er en amfibolittskifer, med mye biotitt og granat i partier og glimmerskifer. Lys kvarts + kalkspat årer/linser er utbredt. Disse er generelt ikke mineraliserte. Malmen er anriket på Co+ Ni, Zn og Cu, men gehaltene er ikke interessante (maks. 0.02 % Cu). Noe kobberkis ble sett sammen med pyritt. I vegskjæringen i den gamle veien finnes rustsoner over ca. 100 m langs veien. |
Fieldsamples |
Sample No. | Sample type | Miscellanrous | ||||
LS91004 | Bedrock |
|
||||
LS91005 | Bedrock |
|
||||
LS91006 | Bedrock |
|
||||
LS91007 | Bedrock |
|
NB! All analyse values are shown at the end of the printout.: |
Analyse Results |
from |
Deposit Area 1742 - 022 Gartland |
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# |
LS91004 | Bedrock | 526 | 155 | 11 | 53 | 140 | 1.0 | 15.0 |
LS91005 | Bedrock | 1285 | 204 | 66 | 157 | 171 | 1.8 | 31.0 |
LS91006 | Bedrock | 236 | 210 | 15 | 23 | 94 | .5 | 7.0 |
LS91007 | Bedrock | 102 | 164 | 7 | 13 | 63 | .2 | 5.0 |
------------------ |
Sample No. | Pt# | Pd# | As* | Cd* | Ba* | Mo* | Sb* | Bi* | S% |
LS91004 | 3.0 | 9.0 | 2 | .2 | 16 | 13.00 | 9 | 2 | 14.32 |
LS91005 | 1.0 | 22.0 | 7 | .2 | 11 | 18.00 | 2 | 8 | 12.10 |
LS91006 | 3.0 | 5.0 | 2 | .2 | 26 | 10.00 | 5 | 2 | 11.70 |
LS91007 | 2.0 | 4.0 | 2 | .2 | 35 | 6.00 | 5 | 2 | 5.98 |
------------------ |
Sample No. | V* | Cr* | Mn* | Fe% | Th* | U* | W* | Sr* | La* |
LS91004 | 188 | 103 | 622 | 21.72 | 1.00 | 5.00 | 1 | 20.0 | 11.00 |
LS91005 | 169 | 78 | 458 | 15.59 | 5.00 | 7.00 | 1 | 21.0 | 19.00 |
LS91006 | 117 | 49 | 1089 | 17.38 | 1.00 | 5.00 | 1 | 63.0 | 10.00 |
LS91007 | 104 | 139 | 996 | 12.35 | 2.00 | 5.00 | 1 | 43.0 | 11.00 |
------------------ |
Sample No. | B* | ||||||||
LS91004 | 5 | ||||||||
LS91005 | 5 | ||||||||
LS91006 | 2 | ||||||||
LS91007 | 3 |
The fact sheet was created on 16.01.2025 |
Questions or comments regarding the fact sheet can be emailed to: ressursdatabaser@ngu.no |
Copyright © 2025 Geological Survey of Norway |