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THE ORE DATABASE
Occurence 1832 - 001 Tverrberget
(Object Id: 2157)
(Last updated: 03.11.1999)

Location
County: Nordland Municipality: Hemnes (1832)
Map 1:50000: Røssvatnet (1926-1) Map 1:250000: Mosjøen
Coordinate system: EU89-UTM Zone 33
East: 441682 m. North: 7306097 m.
Longitude: 13.7214920 Latitude: 65.8707550
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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:


Mineralization
Era: Proterozoic Period:
Genesis: Sedex Form: Layer
Main texture: Banded Min. distribution: Semi-massive (20-50 % ore minerals)
Main grain size: Fine grained (< 1 mm) Main alteration:
Strike/Dip: 120 / 20 Direction:
Plunge:
Stratigraphic classification of host rock
Era: Proterozoic Period:
Province: Caledonides
Geotec.unit: Rødingsfjell Nappe Complex
Tectonic complex:
Igneous complex:
Group: Formation:

Mineralogy
Relationship Mineral Amount
Gangue mineral Feldspar Major mineral (>10%)
Gangue mineral Amphibole Major mineral (>10%)
Gangue mineral Biotite Major mineral (>10%)
Gangue mineral Garnet Subordinate mineral (1-10%)
Gangue mineral Graphite 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 Glimmerskifer Sedimentary
Original rock :Greywacke
Metamorphic facies :Amphibolite
Host rock Amfibolitt Extrusive
Original rock :Basalt
Metamorphic facies :Amphibolite
Wall rock Kalkspatmarmor Sedimentary
Original rock :Limestone
Metamorphic facies :Amphibolite

Structures
Location: Type: Orientation(360 gr.): Relation to min.:
Host rock Foliation Strike/Dip :120 / 20 Post-mineralisation ;...Effect :None

Information(s) in free text format
Free text
Mineraliseringen har utgående i et stup, og er derfor vanskelig tilgjengelig. Det er utbrudt omkring 5 m3. Over kalkspatmarmor er det minst 5-6 m mektig, rusten granatglimmerskifer med tynne lag av amfibolitt (± granat). Det er litt diss. av magnetkis og svovelkis og spor av kobberkis over hele mektigheten av glimmerskifer (prøve 03) og amfibolitt, men sulfidene er konsentrert i minst ett 20-30 cm mektig lag av semimassiv magnetkis og litt svovelkis i grafittglimmerskifer (01, 02 og 04) med noe cummingtonitt. I den mineraliserte sonen er det lokale diskordanser pga. glidning.

Fieldsamples
Sample No. Sample type Miscellanrous
NO0031.01 Bedrock
Sampler: Wilberg, R./...Stored: Løkken
Comment: Grafittholdig gl.sk. med semimassiv po-py-min.
No. of registrated element analyses = 1
NO0031.02 Bedrock
Sampler: Wilberg, R./...Stored: Løkken
Comment: Grafittholdig gl.sk. med semimassiv po-py-min.
No. of registrated element analyses = 1
NO0031.03 Bedrock
Sampler: Wilberg, R./...Stored: Løkken
Comment: Gl.sk. med po-diss.
No. of registrated element analyses = 1
NO0031.04 Bedrock
Sampler: Wilberg, R./...Stored: Løkken
Comment: Semimassiv po i grafittgl.sk.
No. of registrated element analyses = 1
NB! All analyse values are shown at the end of the printout.:


Analyse Results
from
Deposit Area 1832 - 001 Tverrberget

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#
NO0031.01 Bedrock 614 103 29 15 213 .7 8.0
NO0031.02 Bedrock 202 120 12 45 244 .8 13.0
NO0031.03 Bedrock 67 99 15 17 68 -.3 3.0
NO0031.04 Bedrock 397 153 44 24 287 .8 8.0
------------------
Sample No. Pt# Pd# Rh# As* Cd* Ba* Mo* Sb* Bi*
NO0031.01 9.0 7.0 -5.0 6 -.2 5 17.00 3 2
NO0031.02 21.0 11.0 -5.0 17 -.2 20 23.00 -2 3
NO0031.03 -3.0 -3.0 -5.0 3 -.2 114 6.00 2 -2
NO0031.04 18.0 8.0 -5.0 7 -.2 3 19.00 -2 -2
------------------
Sample No. S% V* Cr* Mn* Fe% Th* U* W* Sr*
NO0031.01 4.93 137 34 4121 11.25 8.00 6.00 -2 27.0
NO0031.02 6.96 218 76 4158 14.94 8.00 -5.00 -2 18.0
NO0031.03 1.07 97 71 220 4.66 10.00 -5.00 -2 8.0
NO0031.04 8.00 143 25 7375 17.08 5.00 -5.00 -2 111.0
------------------
Sample No. La* B*
NO0031.01 15.00 6
NO0031.02 37.00 5
NO0031.03 29.00 5
NO0031.04 35.00 3


The fact sheet was created on 18.10.2021

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