Norsk versjon
THE ORE DATABASE
Occurence 5026 - 019 Åsmyran
(Object Id: 4412)
(Last updated: 25.08.2019)
Location
County: Trøndelag Municipality: Holtålen (5026)
Map 1:50000: Haltdalen (1620-1) Map 1:250000: Røros
Coordinate system: EU89-UTM Zone 32
East: 609855 m. North: 6972337 m.
Longitude: 11.1591040 Latitude: 62.8645250
Show on map
Resource
Resource Type: Base metals (Cu,Zn,Pb,Fe sulphides, As,Sb,Bi,Sn) Resource Subtype: Sulphides
Element(s): Kis
Importance
Raw material meaning: Little Importance (reg. 18.02.2015)

Resources and production
Activity: Pitting Reserves:
Operating method: Historical production:


Operations
From - To Activity Comments
1997 - 1997 Sampling Company/Institution :NGU

Mineralization
Era: Paleozoic Period:
Genesis: Volcex Form:
Main texture: Banded Min. distribution: Semi-massive (20-50 % ore minerals)
Main grain size: Fine grained (< 1 mm) Main alteration:
Strike/Dip: Direction:
Plunge:
Stratigraphic classification of host rock
Era: Paleozoic Period:
Province: Caledonides
Geotec.unit: Trondheim Nappe Complex
Tectonic complex: Gula Nappe
Igneous complex:
Group: Gula Formation: Åsli

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

Lithology:
Relationship Rock Origin
Wall rock Mica schist Sedimentary
Original rock :Greywacke
Metamorphic facies :Amphibolite

Structures
Location: Type: Orientation(360 gr.): Relation to min.:
Wall rock Foliation Strike/Dip :207 / 55 Post-mineralisation ;...Effect :Modifies
Wall rock Mineral lineation Dir./Plunge :262 / 55 Post-mineralisation ;...Effect :Modifies

Information(s) in free text format
Free text
Forekomsten ligger i tett granskog sør for en bekk og en større myr i et område med få blotninger. Den består av en vannfyllt synk med vegger 2 x 6 m. I følge bonden på den nærmeste gården skal driften være gammel, omkring år 1700. Det står igjen en liten, svært rusten sulfidsone i NV-veggen, og denne er også blottet i bekken 6 m lengre NØ. Blokker på tippen er svært forvitret, men prøver semi-massiv, dels båndet magnetkis med spor av kobberkis i en amfibolrik matriks ble prøvetatt. Sidebergarten består av glimmerskifer med foliasjon 207¿/55¿.

Photo(s) from the Deposit area:
Photo no. 1 showing Åsmyran skjerp"

Fieldsamples
Sample No. Sample type Miscellanrous
ST0210.01 Dump
Sampler: Sandstad, J.S./...Stored: Løkken/...Size(kg): 2
Comment: po, finkornet, semi-massiv, amfibol-matriks.
No. of registrated element analyses = 1
ST0210.02 Dump
Sampler: Sandstad, J.S./...Stored: Løkken/...Size(kg): 2
Comment: po, semi-massiv/diss. i finkornet amfibol-granat matriks.
No. of registrated element analyses = 1
ST0210.03 Dump
Sampler: Sandstad, J.S./...Stored: Løkken/...Size(kg): 2
Comment: po, finkornet, massiv, spor av cpy (liten prøve).
No. of registrated element analyses = 1
NB! All analyse values are shown at the end of the printout.:

Analyse Results
from
Deposit Area 5026 - 019 Åsmyran

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#
ST0210.01 Dump 1224 82 44 97 262 1.3 36.0
ST0210.02 Dump 493 37 38 33 84 .7 14.0
ST0210.03 Dump 2941 70 302 70 192 2.1 88.0
------------------
Sample No. Pt# Pd# As* Cd* Ba* Mo* Sb* Bi* S%
ST0210.01 6.0 16.0 -2 -.2 3 5.00 -3 -3 20.87
ST0210.02 13.0 9.0 -2 -.2 1 3.00 -3 -3 5.26
ST0210.03 26.0 36.0 -2 -.2 18 8.00 -3 6 15.93
------------------
Sample No. V* Cr* Mn* Fe% Th* U* W* Sr* La*
ST0210.01 111 12 682 39.39 3.00 -8.00 -2 13.0 3.00
ST0210.02 111 18 4592 13.38 5.00 -8.00 -2 50.0 29.00
ST0210.03 129 13 1581 29.01 4.00 -8.00 -2 26.0 9.00
------------------
Sample No. B*
ST0210.01 -3
ST0210.02 -3
ST0210.03 -3

The fact sheet was created on 21.12.2025
Questions or comments regarding the fact sheet can be emailed to:
ressursdatabaser@ngu.no
Copyright © 2025 Geological Survey of Norway