Norsk versjon
THE ORE DATABASE
Occurence 1833 - 055 Hommelmodal
(Object Id: 2740)
(Last updated: 08.02.2000)

Location
County: Nordland Municipality: Rana (1833)
Map 1:50000: Storforshei (2027-4) Map 1:250000: Mo i Rana
Coordinate system: EU89-UTM Zone 33
East: 477212 m. North: 7358117 m.
Longitude: 14.4911030 Latitude: 66.3419420
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Resource
Resource Type: Base metals (Cu,Zn,Pb,Fe sulphides, As,Sb,Bi,Sn) Resource Subtype: Zinc
Element(s): Zn Pb Cu
Importance
Raw material meaning: Not Assessed (reg. 18.02.2015)

Resources and production
Activity: Pitting Reserves:
Operating method: Historical production: ,01 thousand tons


Operations
From - To Activity Comments
1976 - 1976 Geophysics

Mineralization
Era: Proterozoic Period: Neoproterozoic
Genesis: Sedex Form: Irregular
Main texture: Vein network Min. distribution: Disseminated (<20 % ore minerals)
Main grain size: Fine grained (< 1 mm) Main alteration:
Strike/Dip: 75 / 85 Direction:
Plunge:
Stratigraphic classification of host rock
Era: Proterozoic Period: Neoproterozoic
Province: Caledonides
Geotec.unit: Rødingsfjell Nappe Complex
Tectonic complex: Øverste allokton
Igneous complex:
Group: Plurdalsgruppen Formation:

Mineralogy
Relationship Mineral Amount
Gangue mineral Calcite Major mineral (>10%)
Gangue mineral Quartz Subordinate mineral (1-10%)
Ore mineral Sphalerite Major mineral (>10%)
Ore mineral Pyrite Subordinate mineral (1-10%)
Ore mineral Chalcopyrite Subordinate mineral (1-10%)
Ore mineral Galena Subordinate mineral (1-10%)

Lithology:
Relationship Rock Origin
Host rock Kalkglimmerskifer Sedimentary
Original rock :Argillaceous sediment
Metamorphic facies :Amphibolite
Wall rock Kalkspatmarmor Sedimentary
Original rock :Limestone
Metamorphic facies :Amphibolite

Structures
Location: Type: Orientation(360 gr.): Relation to min.:
Host rock Primary layering Strike/Dip :75 / 85 Syn-mineralisation ;...Effect :None
Host rock Foliation Strike/Dip :75 / 85 Post-mineralisation ;...Effect :None

Information(s) in free text format
Free text
Skjerpet er 4x4 m. Det er overgrodd og mektigheten av den mineraliserte sonen kan ikke bedømmes. Bergarten er en finkornet kalkspatmarmor som er gjennomsatt av uregelmessige kvartsårer og -seggregasjoner. Sidesten er en kalkholdig muskovitt-biotittskifer. Marmoren fører disseminasjon og uregelmessige årer av sinkblende, blyglans, svovelkis og kobberkis (prøve 01 og 02). UTM 477570 7358210: Skjerp i samme mineraliserte horisont. Er ikke befart. Mineraliseringen befinner seg på samme nivå som Malmhaug Pb-Zn.

Bibliography:
References not to be found in NGU's Reference Archive.:
17. Endresen, B.A. 1972: Sulfidlokaliteter i Rana - kort oversikt med forsøk på kvalitativ kartlegging. Upubl. rapp.


Spross, E. 1956: Bericht über die Untersuchungsarbeiten im Sommer 1956. Upubl. rapp.


Kruse, A. 1964: Oversikt over malmfelt og malmletingsarbeider i Ranen. Rapport Bergverksselskapet Nord-Norge.

Fieldsamples
Sample No. Sample type Miscellanrous
NO0620.01 Bedrock
Sampler: Wilberg, R./...Stored: Løkken
Comment: Kalkspatmarmor med diss. sl, py og cpy.
No. of registrated element analyses = 1
NO0620.02 Bedrock
Sampler: Wilberg, R./...Stored: Løkken
Comment: Kalkspatmarmor med diss. sl, py og ga.
No. of registrated element analyses = 1
NB! All analyse values are shown at the end of the printout.:

Name of Locality: Skjerp 1
(Object Id: 3303 55,01,00)

Location
County: Nordland Municipality: Rana (1833)
Map 1:50000: Storforshei (2027-4) Map 1:250000: Mo i Rana
Coordinate system: EU89-UTM Zone 33
East: 477502 m. North: 7358007 m.
Longitude: 14.4975990 Latitude: 66.3409760
Show on map

Resource
Resource Type: Base metals (Cu,Zn,Pb,Fe sulphides, As,Sb,Bi,Sn) Resource Subtype: Zinc
Element(s): Zn Pb Cu
Resources and production
Activity: Pitting Reserves:
Operating method: Historical production:


Information(s) in free text format
Free text
Skjerp i samme mineraliserte horisont som hovedforekomsten. Er ikke befart. Mineraliseringen befinner seg på samme nivå som Malmhaug Pb-Zn.


Analyse Results
from
Deposit Area 1833 - 055 Hommelmodal

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#
NO0620.01 Bedrock 254 13272 4361 8 8 2.2 11.0
NO0620.02 Bedrock 191 13180 14403 5 4 6.7 116.0
------------------
Sample No. Pt# Pd# As* Cd* Ba* Mo* Sb* Bi* S%
NO0620.01 1.0 5.0 3 54.2 9 7.00 9 6 2.29
NO0620.02 1.0 2.0 26 50.9 6 5.00 73 5 1.16
------------------
Sample No. V* Cr* Mn* Fe% Th* U* W* Sr* La*
NO0620.01 1 1 6425 5.33 1.00 5.00 3 96.0 2.00
NO0620.02 2 1 4637 3.82 1.00 5.00 2 78.0 2.00
------------------
Sample No. B*
NO0620.01 4
NO0620.02 2


The fact sheet was created on 03.05.2024

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