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THE ORE DATABASE
Deposit Area 522 - 006
(Last updated 25.nov.2022)

Name of Deposit Area : Trona
(Object Id : 0522,006,00,00)
Location
County : Oppland (05) Municipality : Gausdal (0522)
Map 1:50000: Svatsum (1717-1) Map 1:250000: Lillehammer
Marking point: Longitude: 9.6841490 Latitude: 61.3675540
EU89-UTM Zone 32 (Coordinates IS confirmed)
X-coord: 536573 m. Y-coord: 6803919 m.
Commodity
Main Type: Ferroalloys (Cr,Ni,Co,V,Mo,W) Sub Type: Nickel
Element(s): Ni Cu Co
Production
Activity: Exploration Reserves:
Prod. method: Production:
Prod. status: Not yet active Volume of dump:

Importance
Public: Little Importance (reg. 18.02.2015)
Economical: Minor interest , (Confirmed 16.feb.2005 by Havard Gautneb)

Operations
From - To Activity Comments
2003 - 2005 Geophysics Company/Institution :Blackstone Venture Ltd
NGU utførte helikopterm\ålingene i 2003-04
2005 - 2008 Core drilling Company/Institution :Blackstone Venture Ltd
9 hull med total lengde 2038 m.

Mineralization
Era: Proterozoic Period: Mesoproterozoic
Dating: Method:
Genesis: Orthomagmatic formation Form: Lens
Main texture: Vein network Min. distribution: Semi-massive (20-50 % ore minerals)
Main grain size: Medium grained (1-3 mm) Main alteration:
Strike/Dip: 125 / 40 Direction:
Plunge:
Stratigraphic classification of host rock
Era: Proterozoic Period: Mesoproterozoic
Province: Caledonian Basement Province
Geotec.unit: Jotun Nappe Complex
Tectonic complex: Espedalen Complex
Igneous complex:
Group: Formation:

Mineralogy
Relationship Mineral Amount
Gangue mineral Pyroxene Major mineral (>10%)
Gangue mineral Amphibole Subordinate mineral (1-10%)
Gangue mineral Feldspar Subordinate mineral (1-10%)
Ore mineral Pyrrhotite Major mineral (>10%)
Ore mineral Pentlandite Subordinate mineral (1-10%)
Ore mineral Chalcopyrite Subordinate mineral (1-10%)

Lithology:
Relationship Rock Origin
Host rock Peridotite Intrusive
Original rock :Peridotite
Host rock Norite Intrusive
Original rock :Norite
Wall rock Anorthosite Intrusive
Original rock :Anorthosite

Information(s) in free text format
Free text
Forekomsten er registrert i en veiskjæring langs en skogsbilvei som går fra Kolbotn og nordvest oppover lia på vestsida av fjellet Trona. Flekkvis sulfidmineralisering finnes langs denne veien i et område hvor Blackstone Ventures utførte diamantboringer i perioden 2005-08 (totalt 8 hull). Sulfidmineraliseringene består av semimassiv til disseminert magnetkis og mindre mengder kobberkis i finkornet melanogabbro.

Fieldsamples
Sample No. Sample type Miscellanrous
JS-ES2218 Bedrock
Sampler :Sandstad/Mansur/...Stored :Løkken/...Size(kg) :2
Comment :Semimassive/disseminated pyrrhotite+chalcopyrite in melanogabbro
No. of registrated element analyses = 1
NB! All analyse values are shown at the end of the printout.:

Analyse Results
from
Deposit Area 522 - 006 Trona

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-ES2218 Bedrock 1605 91 1 383 1770 .6 8.0
------------------
Sample No. Pt# Pd# As* Cd* Ba* Mo* Sb* Bi* Se*
JS-ES2218 -5.0 14.0 0 .3 70 10.40 -0 0 6.00
------------------
Sample No. Ga* Ge* S% V* Cr* Mn* Fe% Th* Rb*
JS-ES2218 11.55 0.15 9.37 210 268 988 24.90 0.13 1.7
------------------
Sample No. Sr* Y* Zr* Nb* Ta* Cs* La* Ce* Li*
JS-ES2218 216.0 2.2 6 1.40 0.15 0.37 5.50 9.61 6
------------------
Sample No. Be* Mg* Al* P* Ca* Sc* Ti* Te* Hf*
JS-ES2218 1 41600 58000 110 22800 20.20 1180 0.45 0.20
------------------
Sample No. Re* Tl*
JS-ES2218 0 0

The fact sheet was created on 18.05.2024
Questions or comments regarding the fact sheet can be emailed to:
ressursdatabaser@ngu.no
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