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THE ORE DATABASE
Occurence 4016 - 009 Helldal
(Object Id: 5588)
(Last updated: 11.05.2023)

Location
County: Telemark Municipality: Drangedal (4016)
Map 1:50000: Gjerstad (1612-1) Map 1:250000: Arendal
Coordinate system: EU89-UTM Zone 32
East: 508999 m. North: 6535210 m.
Longitude: 9.1564540 Latitude: 58.9564210
Show on map

Resource
Resource Type: Base metals (Cu,Zn,Pb,Fe sulphides, As,Sb,Bi,Sn) Resource Subtype: Copper
Element(s): Kis Cu
Importance
Raw material meaning: Little Importance (reg. 18.02.2015)

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


Mineralization
Era: Proterozoic Period: Mesoproterozoic
Genesis: Volcex Form: Lens
Main texture: Breccia cement Min. distribution: Massive (>50 % ore minerals)
Main grain size: Fine grained (< 1 mm) Main alteration:
Strike/Dip: Direction:
Plunge:
Stratigraphic classification of host rock
Era: Proterozoic Period: Mesoproterozoic
Province: South Norwegian Basement Province
Geotec.unit: Bamble Complex
Tectonic complex:
Igneous complex:
Group: Formation:

Mineralogy
Relationship Mineral Amount
Gangue mineral Amphibole Major mineral (>10%)
Gangue mineral Quartz Major mineral (>10%)
Ore mineral Pyrrhotite Major mineral (>10%)
Ore mineral Chalcopyrite Subordinate mineral (1-10%)
Ore mineral Sphalerite Accessory mineral (<1%)

Information(s) in free text format
Free text
Gruven ligger under en liten skrent på østsiden av et lite dalføre på østsiden av Hommansfjellet. En traktorvei går gjennom dalen og passerer like under gruvetippen. Den tar av fra veien til Bratthammar gård like etter avkjørselen fra fylkesveien. (JSS/PMI)

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

Fieldsamples
Sample No. Sample type Miscellanrous
TE0202.01 Dump
Sampler: J.S. Sandstad/...Stored: Løkken
Comment: Massiv magnetkis+kobberkis med grønne bergartsfragmenter og amfibol.
No. of registrated element analyses = 1
TE0202.02 Dump
Sampler: J.S. Sandstad/...Stored: Løkken
Comment: Semi-massiv magnetkis-kobberkis i kvarts+amfibol rik grunnmasse.
No. of registrated element analyses = 1
TE0202.03 Dump
Sampler: J.S. Sandstad/...Stored: Løkken
Comment: Massiv magnetkis-kobberkis malm, rel Cu-rik, fra skeidehaug.
No. of registrated element analyses = 1
NB! All analyse values are shown at the end of the printout.:


Analyse Results
from
Deposit Area 4016 - 009 Helldal

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#
TE0202.01 Dump 9695 1117 2 211 107 3.9 347.0
TE0202.02 Dump 15878 9331 5 105 50 3.8 297.0
TE0202.03 Dump 41122 7333 16 146 73 8.7 1.0
------------------
Sample No. Pt# Pd# As* Cd* Ba* Mo* Sb* Bi* S%
TE0202.01 2.0 1.0 20 4.1 10 6.00 2 16 20.20
TE0202.02 1.0 2.0 8 56.9 75 3.00 2 21 11.30
TE0202.03 1.0 1.0 13 45.0 14 3.00 2 51 15.50
------------------
Sample No. V* Cr* Mn* Fe% Th* U* W* Sr* La*
TE0202.01 15 14 177 36.09 1.00 4.00 1 12.0 2.00
TE0202.02 17 9 356 17.61 1.00 12.00 1 20.0 3.00
TE0202.03 2 26 322 23.53 1.00 9.00 1 15.0 3.00
------------------
Sample No. B*
TE0202.01 5
TE0202.02 2
TE0202.03 2


The fact sheet was created on 29.03.2024

Questions or comments regarding the fact sheet can be emailed to:
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