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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
Sampler :Størseth, L.R.
Comment :Massive pyrrhotite ore.
No. of registrated element analyses = 1
LS91005 Bedrock
Sampler :Størseth, L.R.
Comment :Disseminations of pyrite.
No. of registrated element analyses = 1
LS91006 Bedrock
Sampler :Størseth, L.R.
Comment :Semi-massive pyrrhotite ore in mica schist.
No. of registrated element analyses = 1
LS91007 Bedrock
Sampler :Størseth, L.R.
Comment :Disseminations of pyrite-pyrrhotite.
No. of registrated element analyses = 1
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 19.05.2024

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