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THE ORE DATABASE
Prospect 1833 - 105 Hellerfjellet
(Object Id: 2872)
(Last updated: 22.03.2024)
Belongs to the Province: Mofjellet sink-bly
Location
County: Nordland Municipality: Rana (1833)
Map 1:50000: Store Akersvandet (2027-3) Map 1:250000: Mo i Rana
Coordinate system: EU89-UTM Zone 33
East: 476625 m. North: 7343004 m.
Longitude: 14.4807770 Latitude: 66.2063230
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 Ag
Importance
Raw material meaning: Not Assessed (reg. 09.02.2017)

Resources and production
Activity: Pitting Reserves:
Operating method: Historical production: ,25 thousand tons


Products
Element/product Crude ore grade or quality Reg. date
Ag 110 ppm 22.03.2024
Cu .5 % 24.03.1992
Pb 3 % 24.03.1992
Zn 10 % 24.03.1992

Operations
From - To Activity Comments
1934 - 1935 Sampling
1936 - 1936 Core drilling
1963 - 1963 Sampling
2007 - 2007 Geophysics Company/Institution :GEXCO Norge AS
TEM (by SkyTEM)
2008 - 2008 Core drilling Company/Institution :GEXCO Norge AS
One hole which confirmed the continuation of mineralization down-dip for at least 250 m.
2008 - 2009 Geology Company/Institution :NGU

Mineralization
Era: Proterozoic Period: Neoproterozoic
Genesis: Volcex Form: Lens
Main texture: Durchbewegt Min. distribution: Massive (>50 % ore minerals)
Main grain size: Fine grained (< 1 mm) Main alteration: Sericitisation
Strike/Dip: 20 / 30 Direction: 90
Plunge: 25
Stratigraphic classification of host rock
Era: Proterozoic Period: Neoproterozoic
Province: Caledonides
Geotec.unit: Rødingsfjell Nappe Complex
Tectonic complex: Uppermost Allochthon
Igneous complex:
Group: Mofjell Group Formation:

Mineralogy
Relationship Mineral Amount
Gangue mineral Celsian Major mineral (>10%)
Gangue mineral Clinoamphibole Major mineral (>10%)
Gangue mineral Quartz Major mineral (>10%)
Gangue mineral Staurolite Subordinate mineral (1-10%)
Gangue mineral Plagioclase Subordinate mineral (1-10%)
Gangue mineral Biotite Subordinate mineral (1-10%)
Gangue mineral Muscovite Subordinate mineral (1-10%)
Ore mineral Pyrrhotite Major mineral (>10%)
Ore mineral Sphalerite Major mineral (>10%)
Ore mineral Galena Subordinate mineral (1-10%)
Ore mineral Chalcopyrite Subordinate mineral (1-10%)
Ore mineral Pyrite Subordinate mineral (1-10%)
Ore mineral Stannite Accessory mineral (<1%)
Ore mineral Freibergite Accessory mineral (<1%)
Ore mineral Rutile Accessory mineral (<1%)
Ore mineral Arsenopyrite Accessory mineral (<1%)

Lithology:
Relationship Rock Origin
Host rock Muskovittgneis Sedimentary
Original rock :Greywacke
Metamorphic facies :Amphibolite
Wall rock Granatglimmergneis Sedimentary
Original rock :Greywacke
Metamorphic facies :Amphibolite

Structures
Location: Type: Orientation(360 gr.): Relation to min.:
Host rock Foliation Strike/Dip :20 / 30 Post-mineralisation ;...Effect :None
Host rock Mineral lineation Strike/Dip :90 / 25 Post-mineralisation ;...Effect :Controls
Host rock Fold axis Strike/Dip :90 / 25 Post-mineralisation ;...Effect :Controls

Information(s) in free text format
Description
Main pit: Up to 2 m deep. Frequent lenses of massive sphalerite with minor galena and pyrrhotite, as well as rich impregnations and veinlets (Sample HF-10). The lenses have thickness up to 20-30 cm, and is surrounded by quartz-sericite schist.
Free text
The Hellerfjellet mineralization is situated in the southernmost part of the Stangfjell-Hellerfjell zone, and consists of 21 small workings over a length of more than 200 m. In outcrop the mineralization consists of several massive sulfide lenses, up to 1.5 m thick but only a few meters long, surrounded by weaker impregnations in muscovite gneiss. The massive lenses appear to be located at different levels within the muscovite gneiss. The whole mineralized zone appears to be between 1.5 and more than 3 m thick. The muscovite gneiss is characterized by thin lenses enriched in graphite, also close to the richer zones of mineralization. The mineralization at Hellerfjellet is generally very rich in base metals and silver, and several of the massive lenses contain more than 10 % Cu+Pb+Zn and > 100 g/t Ag. The mineralization is also enriched in barium (0.4-1.8 % Ba in the massive lenses). The massive lenses are dominated by sphalerite and pyrrhotite, while galena and chalcopyrite are present in subordinate amounts. Pyrite and/or pyrrhotite dominate in impregnated schists. Sulphosalts, including freibergite and Fe+Ni rich varieties occur in accessory amounts, generally as small inclusions in galena. Quartz, clinoamphibole and celsian are the most common silicates, while biotite, muscovite, staurolite and plagioclase are less common. GEXCO drilled one hole in 2008, which showed that the mineralization continues at least 250 m along dip from the outcrops. The best intersections were 5 m with 1.23 % Zn, 0.35 % Cu, 0.35 % Pb, 27 g/t Ag and 1 m with 1.82 % Zn, 0.16 % Cu, 0.59 % Pb and 24 g/t Ag. The geophysical data (TEM) indicates that the zone has an extent of at least 1.5 km along strike.

Bibliography:
From NGU's Reference Archive:
Bjerkgård, Terje ; Marker, Mogens ; Slagstad, Trond ; Solli, Arne , 2008
Mofjell-prosjektet. Statusrapport 2008
;Norges geologiske undersøkelse;RAPPORT;NGU-rapport; No.2008.088;25 s. pages
Abstract:
Rapporten gir en status for Mofjellprosjektet, et 4-årig samarbeidsprosjekt mellom GEXCO Norge AS og NGU. Prosjektområdet er øst og sør for Mo i Rana, et område som kan inneholde økonomiske sulfidforekomster med Cu, Zn, Pb, Ag og Au. Målet er å få fram dette potensialet gjennom å kartlegge berggrunnen, de kjente og delvis drevne sulfidforekomstene og andre mineraliseringer i området. Berggrunnskartleggingen i 2008 har fokusert på den østlige delen av området, som omfatter fortsettelsen av Plurdalgruppen sørover og relasjonen til bergartsgrupper i øst. Dette innbefatter den viktige tidlig Kaledonske skyvestrukturen som kalles Langfjellsonen, som kan representere et malmgeologisk provinsielt skille, med jernmalmene i nord og sulfidforekomstene i sør. Under feltarbeidet ble det systematisk innsamlet 95 bergartsprøver til geokjemi, geokronologi og petrologi for å undersøke bergartenes dannelse som bakgrunn for relasjonen til malmgenese. Malmgeologiarbeidet har i 2008 fokusert på å skaffe oversikt over sulfidforekomster i Mofjellgruppen og en rekke nøkkelforekomster i de forskjellige mineraliserte sonene er kartlagt og prøvetatt. I tillegg har GEXCO innsamlet mange prøver, dels i form av håndstykkeprøver og dels i form av boring med packsack utstyr. Sammen med resultater fra GEXCOs diamantboringer viser arbeidet så langt at en rekke forekomster og soner i området kan være av økonomisk interesse og bør følges opp videre. De mest interessante områdene og forekomstene i Mofjellgruppen som peker seg ut så langt i tillegg til forekomstene i Mofjellet og Sølvberget er Hellerfjellet, Hesjelia-Hammertjønna, Heramb-Bertelberget og Småvatnan. Mer arbeid med dataene, blant annet sammenholdt med data fra tidligere prospekteringsaktivitet i området, er nødvendig for å komme nærmere inn på potensialet i både de ovenfor nevnte forekomstene og andre i området.

Bjerkgård, Terje ; Slagstad, Trond ; Solli, Arne ; Marker, Mogens , 2009
Mofjell-prosjektet: Statusrapport pr. juni 2009
;Norges geologiske undersøkelse;RAPPORT;NGU-rapport; No.2009.038;31 s. pages
Abstract:
I alt ble 95 bergartsprøver innsamlet under feltarbeidet i 2008; av disse 81 prøver for geokjemi og 26 prøver for mineralseparasjon og aldersbestesmmelse (de fleste av disse også for geokjemi). Geokjemi av både amfibolitter og felsiske metavulkanitter i Mofjellgruppen viser øybuesignatur. Resultatene er således i stor grad i overensstemmelse med det som tidligere er publisert. En god del av de grå gneisene ser ut til å representere felsiske metavulkanitter, noe som betyr at det er et større innslag av vulkanske bergarter i området enn tidligere antatt. Dette kan også være en av grunnene til at området er anomalt når det gjelder gull-innhold. Det blir viktig å identifisere de tykkere enhetene med grå gneis. Dersom disse er vulkanske, kan de ha vært viktige som både varme- og metallkilde for dannelse av sulfidforekomstene.

Bjerkgård, Terje; Marker, Mogens; Slagstad, Trond; Solli, Arne , 2013
The Mofjell project: summary and conclusions
;Norges geologiske undersøkelse;RAPPORT;NGU-rapport; No.2013.048;87 pages
Abstract:
The Mofjell project commenced in 2008 as a cooperation between GEXCO Norge AS, the county administration of Nordland and NGU. As GEXCO faced financial difficulties the external funding ended in 2009. The project area included Mofjellet and the eastern part of Plurdalen, an area with a large potential for economic sulfide deposits with Zn, Cu, Pb, Ag and Au. NGU has focused on establishing the geological setting of the Mofjell Group and its relation to ore formation. Another very important goal has been to assess the potential for economic ore deposits in the area, including enrichment of precious metals. On the basis of lithological observations and geochemistry, the Mofjell Group consists of a largely bimodal volcanic-sedimentary assemblage formed in an island-arc to back-arc setting. The data also show that the proportion of felsic volcanic rocks is much higher than previously described. A bimodal volcanic suite mixed with sediments is a geological environment which is regarded as favorable for both rich and large sulfide deposits.

References not to be found in NGU's Reference Archive.:
Kleine-Hering, R & Schulze, D. 1969: Bericht zu den geologischen untersuchungen in der umgebung des Akersvatn. Intern rapport Bleikvassli Gruber A/S.


Saager, R. 1966: Erzgeologische Untersuchungen an Kaledonischen Blei, Zink und Kupfer fürenden Kieslagerstätten im Nord-Rana Distrikt, Nord-Norwegen. Doktoravhandling ETH, Zürich.


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
A0040-EN021P1 Core
Sampler: GEXCO
No. of registrated element analyses = 1
A0040-EN021P2 Core
Sampler: GEXCO
No. of registrated element analyses = 1
A0040-PJ001P1 Core
Sampler: GEXCO
No. of registrated element analyses = 1
HF-10 Dump
Sampler: T. Bjerkgård/...Stored: Løkken/...Size(kg): 2
Comment: Massive veins of sulfides (zn-rich) in sericite schist
No. of registrated element analyses = 1
NO0768.01 Bedrock
Sampler: Wilberg, R./...Stored: Løkken
Comment: Muskovittgneis med litt grafitt fra liggberg.
No. of registrated element analyses = 1
NO0768.02 Bedrock
Sampler: Wilberg, R./...Stored: Løkken
Comment: Glimmergneis med sl-ga-po-cpy-diss.
No. of registrated element analyses = 1
NO0768.03 Bedrock
Sampler: Wilberg, R./...Stored: Løkken
Comment: Glimmergneis med sl-ga-po-cpy-diss.
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: 3675 105,01,00)
Location
County: Nordland Municipality: Rana (1833)
Map 1:50000: Store Akersvandet (2027-3) Map 1:250000: Mo i Rana
Coordinate system: EU89-UTM Zone 33
East: 476627 m. North: 7342992 m.
Longitude: 14.4808450 Latitude: 66.2062190
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 Ag
Resources and production
Activity: Pitting Reserves:
Operating method: Historical production:


Information(s) in free text format
Free text
Small pit with pyritiferous quartz-sericite schist.

Name of Locality: Skjerp 2
(Object Id: 3676 105,02,00)
Location
County: Nordland Municipality: Rana (1833)
Map 1:50000: Store Akersvandet (2027-3) Map 1:250000: Mo i Rana
Coordinate system: EU89-UTM Zone 33
East: 476598 m. North: 7343026 m.
Longitude: 14.4801910 Latitude: 66.2065190
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 Ag
Resources and production
Activity: Pitting Reserves:
Operating method: Historical production:


Information(s) in free text format
Free text
Small pit with quartz-sericite schist containing scattered very fine-grained pyrite.

Name of Locality: Skjerp 3
(Object Id: 3677 105,03,00)
Location
County: Nordland Municipality: Rana (1833)
Map 1:50000: Store Akersvandet (2027-3) Map 1:250000: Mo i Rana
Coordinate system: EU89-UTM Zone 33
East: 476590 m. North: 7343053 m.
Longitude: 14.4799980 Latitude: 66.2067580
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 Ag
Resources and production
Activity: Pitting Reserves:
Operating method: Historical production:


Structures
Location: Type: Orientation(360 gr.): Relation to min.:
Host rock Foliation Strike/Dip :319 / 25 Post-mineralisation ;...Effect :Controls

Information(s) in free text format
Free text
Small pit in ledge, in hangingwall of prospect no.4. Outcrop of chlorite-sericite schist with some graphite, containing thin veins of galena, sphalerite and chalcopyrite (sample HF-09). Rich in graphite in some zones. Mineralized zone about 1 m thick.

Fieldsamples
Sample No. Sample type Miscellanrous
HF-09 Dump
Sampler: T. Bjerkgård/...Stored: Løkken/...Size(kg): 2
Comment: Sulfide veins in chlorite-sericite schist
No. of registrated element analyses = 1
NB! All analyse values are shown at the end of the printout.:

Name of Locality: Skjerp 4
(Object Id: 3678 105,04,00)
Location
County: Nordland Municipality: Rana (1833)
Map 1:50000: Store Akersvandet (2027-3) Map 1:250000: Mo i Rana
Coordinate system: EU89-UTM Zone 33
East: 476592 m. North: 7343059 m.
Longitude: 14.4800540 Latitude: 66.2068150
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 Ag
Resources and production
Activity: Pitting Reserves:
Operating method: Historical production:


Structures
Location: Type: Orientation(360 gr.): Relation to min.:
Host rock Foliation Strike/Dip :314 / 30 Post-mineralisation ;...Effect :Controls

Information(s) in free text format
Free text
Small adit (1.5 m long). Outcrops showing several thin (up to 20-30 cm) lenses of partly massive Zn-rich ore in quartz-sericite schist (Sample HF-07).

Fieldsamples
Sample No. Sample type Miscellanrous
A0040-EN001P1 Core
Sampler: GEXCO
No. of registrated element analyses = 1
A0040-EN001P2 Core
Sampler: GEXCO
No. of registrated element analyses = 1
HF-07 Dump
Sampler: T. Bjerkgård/...Stored: Løkken/...Size(kg): 2
Comment: Massive sl-po-cpy ore
No. of registrated element analyses = 1
NO0768.04 Bedrock
Sampler: Wilberg, R./...Stored: Løkken
Comment: Semimassiv cpy-sl-po-py-malm.
No. of registrated element analyses = 1
NO0768.05 Bedrock
Sampler: Wilberg, R./...Stored: Løkken
Comment: Finkornet massiv po-sl-ga-cpy-malm.
No. of registrated element analyses = 1
NO0768.06 Bedrock
Sampler: Wilberg, R./...Stored: Løkken
Comment: Finkornet massiv po-sl-ga-cpy-malm.
No. of registrated element analyses = 1
NO0768.07 Bedrock
Sampler: Wilberg, R./...Stored: Løkken
Comment: Finkornet massiv po-sl-ga-cpy-malm.
No. of registrated element analyses = 1
NO0768.08 Bedrock
Sampler: Wilberg, R./...Stored: Løkken
Comment: Semimassiv cpy-sl-po-py-malm i glimmergneis.
No. of registrated element analyses = 1
NB! All analyse values are shown at the end of the printout.:

Name of Locality: Skjerp 5
(Object Id: 3679 105,05,00)
Location
County: Nordland Municipality: Rana (1833)
Map 1:50000: Store Akersvandet (2027-3) Map 1:250000: Mo i Rana
Coordinate system: EU89-UTM Zone 33
East: 476585 m. North: 7343070 m.
Longitude: 14.4798960 Latitude: 66.2069090
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 Ag
Resources and production
Activity: Pitting Reserves:
Operating method: Historical production:


Information(s) in free text format
Free text
Small pit with pyritiferous quartz-sericite schist

Name of Locality: Skjerp 6
(Object Id: 3680 105,06,00)
Location
County: Nordland Municipality: Rana (1833)
Map 1:50000: Store Akersvandet (2027-3) Map 1:250000: Mo i Rana
Coordinate system: EU89-UTM Zone 33
East: 476588 m. North: 7343081 m.
Longitude: 14.4799560 Latitude: 66.2070110
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 Ag
Resources and production
Activity: Pitting Reserves:
Operating method: Historical production:


Structures
Location: Type: Orientation(360 gr.): Relation to min.:
Host rock Foliation Strike/Dip :338 / 39 Post-mineralisation ;...Effect :Controls

Information(s) in free text format
Free text
Trench ca. 13 m long in small knoll. Lens about 5-6 m long and up to 70 cm thick with massive ore of fine-grained sphalerite-galena-chalcopyrite-pyrrhotite (Sample HF-05). Surrounded by weak pyrite impregnation in quartz-sericite schist (Sample HF-06).

Fieldsamples
Sample No. Sample type Miscellanrous
A0040-EN001P1 Core
Sampler: GEXCO
No. of registrated element analyses = 1
A0040-EN001P2 Core
Sampler: GEXCO
No. of registrated element analyses = 1
A0040-EN002P2 Core
Sampler: GEXCO
No. of registrated element analyses = 1
A0040-EN003P1 Core
Sampler: GEXCO
No. of registrated element analyses = 1
A0040-EN003P1 Core
Sampler: GEXCO
No. of registrated element analyses = 1
A0040-EN003P2 Core
Sampler: GEXCO
No. of registrated element analyses = 1
A0040-EN003P3 Core
Sampler: GEXCO
No. of registrated element analyses = 1
HF-05 Dump
Sampler: T. Bjerkgård/...Stored: Løkken/...Size(kg): 2
Comment: Massive sl-po-cpy ore.
No. of registrated element analyses = 1
HF-06 Dump
Sampler: T. Bjerkgård/...Stored: Løkken/...Size(kg): 2
Comment: Pyritiferous quartz-sericite schist
No. of registrated element analyses = 1
NO0768.09 Bedrock
Sampler: Wilberg, R./...Stored: Løkken
Comment: Massiv po-sl-ga-cpy-malm.
No. of registrated element analyses = 1
NO0768.10 Bedrock
Sampler: Wilberg, R./...Stored: Løkken
Comment: Semimassiv sl-ga-po-cpy-malm i glimmergneis.
No. of registrated element analyses = 1
NB! All analyse values are shown at the end of the printout.:

Name of Locality: Skjerp 7
(Object Id: 3681 105,07,00)
Location
County: Nordland Municipality: Rana (1833)
Map 1:50000: Store Akersvandet (2027-3) Map 1:250000: Mo i Rana
Coordinate system: EU89-UTM Zone 33
East: 476639 m. North: 7343083 m.
Longitude: 14.4810750 Latitude: 66.2070360
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 Ag
Resources and production
Activity: Pitting Reserves:
Operating method: Historical production:


Information(s) in free text format
Free text
Old Calyx drillhole locality with pit. Thin quartz lenses/veins in sericitic schist.

Name of Locality: Skjerp 8
(Object Id: 3682 105,08,00)
Location
County: Nordland Municipality: Rana (1833)
Map 1:50000: Store Akersvandet (2027-3) Map 1:250000: Mo i Rana
Coordinate system: EU89-UTM Zone 33
East: 476591 m. North: 7343113 m.
Longitude: 14.4800070 Latitude: 66.2072950
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 Ag
Resources and production
Activity: Pitting Reserves:
Operating method: Historical production:


Structures
Location: Type: Orientation(360 gr.): Relation to min.:
Wall rock Foliation Strike/Dip :0 / 37 Post-mineralisation ;...Effect :Controls

Information(s) in free text format
Free text
Small pit with some quartz-sericite schist

Name of Locality: Skjerp 9
(Object Id: 3683 105,09,00)
Location
County: Nordland Municipality: Rana (1833)
Map 1:50000: Store Akersvandet (2027-3) Map 1:250000: Mo i Rana
Coordinate system: EU89-UTM Zone 33
East: 476597 m. North: 7343143 m.
Longitude: 14.4801350 Latitude: 66.2075710
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 Ag
Resources and production
Activity: Pitting Reserves:
Operating method: Historical production:


Structures
Location: Type: Orientation(360 gr.): Relation to min.:
Host rock Foliation Strike/Dip :356 / 30 Post-mineralisation ;...Effect :Controls

Information(s) in free text format
Free text
Small pit (4 m long, 2 m deep). Outcrop of quartz-sericite schist, partly graphitic. Some up to 2 cm thick veins/lenses of disseminated ---grained sphalerite and galena in a 10-15 cm zone in the middle of the pit (sample HF-03).

Fieldsamples
Sample No. Sample type Miscellanrous
HF-03 Dump
Sampler: T. Bjerkgård/...Stored: Løkken/...Size(kg): 2
Comment: Disseminated sl-ga bands in quartz-sericite schist
No. of registrated element analyses = 1
NB! All analyse values are shown at the end of the printout.:

Name of Locality: Skjerp 10
(Object Id: 3684 105,10,00)
Location
County: Nordland Municipality: Rana (1833)
Map 1:50000: Store Akersvandet (2027-3) Map 1:250000: Mo i Rana
Coordinate system: EU89-UTM Zone 33
East: 476596 m. North: 7343154 m.
Longitude: 14.4801220 Latitude: 66.2076620
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 Ag
Resources and production
Activity: Pitting Reserves:
Operating method: Historical production:


Information(s) in free text format
Free text
Pit in small ledge, showing partly very graphite-rich quartz-sericite schist.

Name of Locality: Skjerp 11
(Object Id: 3685 105,11,00)
Location
County: Nordland Municipality: Rana (1833)
Map 1:50000: Store Akersvandet (2027-3) Map 1:250000: Mo i Rana
Coordinate system: EU89-UTM Zone 33
East: 476597 m. North: 7343164 m.
Longitude: 14.4801270 Latitude: 66.2077520
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 Ag
Resources and production
Activity: Pitting Reserves:
Operating method: Historical production:


Structures
Location: Type: Orientation(360 gr.): Relation to min.:
Host rock Foliation Strike/Dip :38 / 20 Post-mineralisation ;...Effect :Controls

Information(s) in free text format
Free text
Pit in small ledge, showing partly very graphite-rich quartz-sericite schist.

Fieldsamples
Sample No. Sample type Miscellanrous
A0040-PJ002P1 Core
Sampler: GEXCO
No. of registrated element analyses = 1
A0040-PJ002P2 Core
Sampler: GEXCO
No. of registrated element analyses = 1
NB! All analyse values are shown at the end of the printout.:

Name of Locality: Skjerp 12
(Object Id: 3686 105,12,00)
Location
County: Nordland Municipality: Rana (1833)
Map 1:50000: Store Akersvandet (2027-3) Map 1:250000: Mo i Rana
Coordinate system: EU89-UTM Zone 33
East: 476616 m. North: 7343180 m.
Longitude: 14.4805660 Latitude: 66.2078970
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 Ag
Resources and production
Activity: Pitting Reserves:
Operating method: Historical production:


Structures
Location: Type: Orientation(360 gr.): Relation to min.:
Wall rock Foliation Strike/Dip :2 / 17 Post-mineralisation ;...Effect :Controls

Information(s) in free text format
Free text
10 m long trench with outcrops in the easternmost 2-3 m of garnet-bearing amphibolite and grey gneiss with thin bands of pyrrhotite-bearing quartz-sericite schist.

Name of Locality: Skjerp 13
(Object Id: 3687 105,13,00)
Location
County: Nordland Municipality: Rana (1833)
Map 1:50000: Store Akersvandet (2027-3) Map 1:250000: Mo i Rana
Coordinate system: EU89-UTM Zone 33
East: 476585 m. North: 7343193 m.
Longitude: 14.4798740 Latitude: 66.2080160
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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 Ag
Resources and production
Activity: Pitting Reserves:
Operating method: Historical production:


Structures
Location: Type: Orientation(360 gr.): Relation to min.:
Host rock Foliation Strike/Dip :353 / 27 Post-mineralisation ;...Effect :Controls

Information(s) in free text format
Free text
Trench, 8 m long and up to 2.5 m deep. Outcrop of biotite- and graphitic quartz-sericite schist. Some pyrrhotite, mainly enriched in a 20-30 cm zone in the middle of the trench (sample HF-02).

Fieldsamples
Sample No. Sample type Miscellanrous
HF-02 Dump
Sampler: T. Bjerkgård/...Stored: Løkken/...Size(kg): 2
Comment: po impregnated quartz-sericite schist, some graphite
No. of registrated element analyses = 1
NB! All analyse values are shown at the end of the printout.:

Name of Locality: Skjerp 14
(Object Id: 3688 105,14,00)
Location
County: Nordland Municipality: Rana (1833)
Map 1:50000: Store Akersvandet (2027-3) Map 1:250000: Mo i Rana
Coordinate system: EU89-UTM Zone 33
East: 476613 m. North: 7343201 m.
Longitude: 14.4804760 Latitude: 66.2080890
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 Ag
Resources and production
Activity: Pitting Reserves:
Operating method: Historical production:


Structures
Location: Type: Orientation(360 gr.): Relation to min.:
Wall rock Foliation Strike/Dip :15 / 32 Post-mineralisation ;...Effect :Controls

Information(s) in free text format
Free text
7 m long trench. outcrop of graphitic sericite schist.

Name of Locality: Skjerp 15
(Object Id: 3689 105,15,00)
Location
County: Nordland Municipality: Rana (1833)
Map 1:50000: Store Akersvandet (2027-3) Map 1:250000: Mo i Rana
Coordinate system: EU89-UTM Zone 33
East: 476621 m. North: 7343203 m.
Longitude: 14.4806720 Latitude: 66.2081100
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 Ag
Resources and production
Activity: Pitting Reserves:
Operating method: Historical production:


Information(s) in free text format
Free text
5 m trench. Outcrop of garnet-bearing amphibolite.

Name of Locality: Skjerp 16
(Object Id: 3690 105,16,00)
Location
County: Nordland Municipality: Rana (1833)
Map 1:50000: Store Akersvandet (2027-3) Map 1:250000: Mo i Rana
Coordinate system: EU89-UTM Zone 33
East: 476611 m. North: 7343213 m.
Longitude: 14.4804420 Latitude: 66.2081970
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 Ag
Resources and production
Activity: Pitting Reserves:
Operating method: Historical production:


Structures
Location: Type: Orientation(360 gr.): Relation to min.:
Host rock Foliation Strike/Dip :359 / 37 Post-mineralisation ;...Effect :Controls

Information(s) in free text format
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10 m trench, deepest in western 2 m. Outcrop of sericitic quartz schist containing few mm-thick lenses and veins with sphalerite, galena and pyrrhotite (sample HF-01).

Fieldsamples
Sample No. Sample type Miscellanrous
HF-01 Dump
Sampler: T. Bjerkgård/...Stored: Løkken/...Size(kg): 2
Comment: Lenses of sl,ga,po in sericitic schist.
No. of registrated element analyses = 1
NB! All analyse values are shown at the end of the printout.:

Name of Locality: Skjerp 17
(Object Id: 32823 105,17,00)
Location
County: Nordland Municipality: Rana (1833)
Map 1:50000: Store Akersvandet (2027-3) Map 1:250000: Mo i Rana
Coordinate system: EU89-UTM Zone 33
East: 476575 m. North: 7343138 m.
Longitude: 14.4796420 Latitude: 66.2075160
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 Ag
Resources and production
Activity: Pitting Reserves:
Operating method: Historical production:


Information(s) in free text format
Free text
Small pit with outcrops of coarse-grained sericitic schist with very little quartz or other minerals underlying more ordinary quartz-sericite schist. In former rock some aggregates of sulfides (sphalerite +/- chalcopyrite +/- pyrite or pyrrhotite) - Sample HF-04.

Fieldsamples
Sample No. Sample type Miscellanrous
HF-04 Dump
Sampler: T. Bjerkgård/...Stored: Løkken/...Size(kg): 2
Comment: Sericitic schist with sulfide aggregates.
No. of registrated element analyses = 1
NB! All analyse values are shown at the end of the printout.:

Name of Locality: Skjerp 18
(Object Id: 32824 105,18,00)
Location
County: Nordland Municipality: Rana (1833)
Map 1:50000: Store Akersvandet (2027-3) Map 1:250000: Mo i Rana
Coordinate system: EU89-UTM Zone 33
East: 476645 m. North: 7342962 m.
Longitude: 14.4812450 Latitude: 66.2059510
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 Ag
Resources and production
Activity: Pitting Reserves:
Operating method: Historical production:


Structures
Location: Type: Orientation(360 gr.): Relation to min.:
Host rock Foliation Strike/Dip :359 / 29 Post-mineralisation ;...Effect :Controls

Information(s) in free text format
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Graphite-rich sericite schist. Very rusty, but no visible sulfides. Small pit in ledge.

Name of Locality: Skjerp 19
(Object Id: 32825 105,19,00)
Location
County: Nordland Municipality: Rana (1833)
Map 1:50000: Store Akersvandet (2027-3) Map 1:250000: Mo i Rana
Coordinate system: EU89-UTM Zone 33
East: 476580 m. North: 7343058 m.
Longitude: 14.4797680 Latitude: 66.2068000
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 Ag
Resources and production
Activity: Pitting Reserves:
Operating method: Historical production:


Information(s) in free text format
Free text
Small pit. Thin bands with weak impregnation of pyrite-pyrrhotite and sphalerite (Sample HF-08).

Fieldsamples
Sample No. Sample type Miscellanrous
HF-08 Dump
Sampler: T. Bjerkgård/...Stored: Løkken/...Size(kg): 2
Comment: Thin bands of very weak impregnations of sl,po,py in sericite schist.
No. of registrated element analyses = 1
NB! All analyse values are shown at the end of the printout.:

Name of Locality: Skjerp 20
(Object Id: 32826 105,20,00)
Location
County: Nordland Municipality: Rana (1833)
Map 1:50000: Store Akersvandet (2027-3) Map 1:250000: Mo i Rana
Coordinate system: EU89-UTM Zone 33
East: 476572 m. North: 7343051 m.
Longitude: 14.4796130 Latitude: 66.2067440
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 Ag
Resources and production
Activity: Pitting Reserves:
Operating method: Historical production:


Information(s) in free text format
Free text
Small pit. Thin bands with weak sulfide impregnation.

Fieldsamples
Sample No. Sample type Miscellanrous
A0040-PJ008P1 Core
Sampler: GEXCO
No. of registrated element analyses = 1
A0040-PJ008P2 Core
Sampler: GEXCO
No. of registrated element analyses = 1
A0040-PJ008P3 Core
Sampler: GEXCO
No. of registrated element analyses = 1
NB! All analyse values are shown at the end of the printout.:

Name of Locality: Skjerp 21
(Object Id: 32827 105,21,00)
Location
County: Nordland Municipality: Rana (1833)
Map 1:50000: Store Akersvandet (2027-3) Map 1:250000: Mo i Rana
Coordinate system: EU89-UTM Zone 33
East: 476568 m. North: 7343042 m.
Longitude: 14.4795120 Latitude: 66.2066610
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 Ag
Resources and production
Activity: Pitting Reserves:
Operating method: Historical production:


Structures
Location: Type: Orientation(360 gr.): Relation to min.:
Wall rock Foliation Strike/Dip :343 / 23 Post-mineralisation ;...Effect :Controls

Information(s) in free text format
Free text
Small pit. Thin bands with weak sulfide impregnation.

Name of Locality: Calyx
(Object Id: 32828 105,22,00)
Location
County: Nordland Municipality: Rana (1833)
Map 1:50000: Store Akersvandet (2027-3) Map 1:250000: Mo i Rana
Coordinate system: EU89-UTM Zone 33
East: 476696 m. North: 7343015 m.
Longitude: 14.4823520 Latitude: 66.2064300
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 Ag
Resources and production
Activity: Exploration Reserves:
Operating method: Historical production:


Information(s) in free text format
Free text
Old drillhole. The core is still lying on the ground. Contains banded and varying rusty mica schist, but very low in base metals according to measurements with portable XRF.

Name of Locality: DDH 4508
(Object Id: 32829 105,23,00)
Location
County: Nordland Municipality: Rana (1833)
Map 1:50000: Store Akersvandet (2027-3) Map 1:250000: Mo i Rana
Coordinate system: EU89-UTM Zone 33
East: 476812 m. North: 7343046 m.
Longitude: 14.4849230 Latitude: 66.2067170
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 Ag
Resources and production
Activity: Exploration Reserves:
Operating method: Historical production:


Information(s) in free text format
Free text
GEXCO drilled one hole in 2008 - no.4508, which showed that the Hellerfjellet mineralization continues at least 250 m along dip from the outcrops. The best intersections were 5 m with 1.23 % Zn, 0.35 % Cu, 0.35 % Pb, 27 g/t Ag and 1 m with 1.82 % Zn, 0.16 % Cu, 0.59 % Pb and 24 g/t Ag.

Analyse Results
from
Deposit Area 1833 - 105 Hellerfjellet

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#
A0040-EN001P1 Core 11200 44100 9550 20 68 56.9 59.0
A0040-EN001P1 Core 11800 208000 34000 52 136 127.0 23.0
A0040-EN001P2 Core 2860 727 664 10 50 18.9 19.0
A0040-EN001P2 Core 7080 23500 5310 31 101 39.3 27.0
A0040-EN002P2 Core 2260 355 63 33 43 9.1 5.0
A0040-EN003P1 Core 8710 101500 24700 32 88 113.0 31.0
A0040-EN003P1 Core 9320 79800 7010 36 42 48.6 18.0
A0040-EN003P2 Core 14500 97900 23200 39 126 167.0 89.0
A0040-EN003P3 Core 3720 69600 7290 47 48 47.2 13.0
A0040-EN021P1 Core 8700 37300 6610 4 21 56.8 29.0
A0040-EN021P2 Core 2230 11900 3890 1 8 40.6 51.0
A0040-PJ001P1 Core 3500 76900 31300 32 13 127.0 45.0
A0040-PJ002P1 Core 324 673 141 49 216 2.8 5.0
A0040-PJ002P2 Core 457 527 83 83 239 4.0 11.0
A0040-PJ008P1 Core 1250 8710 1610 9 12 10.0 4.0
A0040-PJ008P2 Core 148 228 42 34 60 2.0 1.0
A0040-PJ008P3 Core 521 564 161 55 240 2.6 2.0
HF-01 Dump 152 20200 4420 3 8 2.0 10.0
HF-02 Dump 48 137 109 17 55 -1.0 -10.0
HF-03 Dump 241 35800 25100 5 17 25.0 10.0
HF-04 Dump 2900 15800 3260 5 23 16.0 10.0
HF-05 Dump 4070 185000 35300 40 37 56.0 50.0
HF-06 Dump 527 278 295 20 65 4.0 -10.0
HF-07 Dump 4420 177500 31700 46 41 58.0 30.0
HF-08 Dump 32 358 365 27 8 1.0 10.0
HF-09 Dump 2630 31300 5930 11 81 25.0 10.0
HF-10 Dump 1050 217000 6660 13 32 28.0 50.0
NO0768.01 Bedrock 895 1920 3183 3 6 52.1 131.0
NO0768.02 Bedrock 1992 99999 33022 10 1 437.0 31.0
NO0768.03 Bedrock 1780 99999 10846 7 8 54.2 29.0
NO0768.04 Bedrock 41803 99999 41635 49 84 229.7 29.0
NO0768.05 Bedrock 2172 99999 32667 60 98 372.8 52.0
NO0768.06 Bedrock 9531 99999 53350 77 153 284.2 25.0
NO0768.07 Bedrock 22204 99999 62398 95 194 208.8 42.0
NO0768.08 Bedrock 41793 99999 62129 48 97 258.2 24.0
NO0768.09 Bedrock 50493 99999 14971 86 247 157.8 55.0
NO0768.10 Bedrock 1469 99999 41837 12 20 167.7 91.0
------------------
Sample No. Pt# Pd# As* Cd* Ba* Mo* Sn* Sb* Bi*
A0040-EN001P1 -5.0 9.0 6 301.0 5120 27.00 31 5
A0040-EN001P1 -5.0 2.0 56 1000.0 210 45.00 105 -2
A0040-EN001P2 -5.0 3.0 78 5.4 10000 27.00 11 -2
A0040-EN001P2 -5.0 6.0 -5 180.0 6340 22.00 26 -2
A0040-EN002P2 -5.0 1.0 -5 2.3 260 4.00 5 3
A0040-EN003P1 -5.0 3.0 17 762.0 2640 38.00 84 11
A0040-EN003P1 -5.0 6.0 -5 580.0 40 20.00 17 -2
A0040-EN003P2 -5.0 3.0 -5 715.0 30 30.00 93 3
A0040-EN003P3 -5.0 1.0 -5 526.0 2350 33.00 20 9
A0040-EN021P1 -5.0 2.0 -5 278.0 930 17.00 36 -2
A0040-EN021P2 -5.0 -1.0 22 89.9 1060 13.00 29 -2
A0040-PJ001P1 -5.0 7.0 11 567.0 1500 33.00 126 8
A0040-PJ002P1 -5.0 11.0 -5 6.4 200 52.00 -5 -2
A0040-PJ002P2 -5.0 10.0 -5 5.5 130 69.00 -5 -2
A0040-PJ008P1 -5.0 1.0 -5 43.9 250 11.00 5 -2
A0040-PJ008P2 -5.0 3.0 -5 1.7 250 17.00 -5 -2
A0040-PJ008P3 -5.0 13.0 -5 7.8 130 53.00 -5 -2
HF-01 1725 6.00 2
HF-02 552 12.00 4
HF-03 15048 80.00 10
HF-04 8151 28.00 11
HF-05 34485 40.00 40
HF-06 4120 3.00 5
HF-07 35470 45.00 38
HF-08 17914 2.00 2
HF-09 12271 39.00 18
HF-10 12002 34.00 154
NO0768.01 7.0 1.0 30 6.8 59 27.00 20 2
NO0768.02 3.0 5.0 16 1245.5 60 134.00 246 63
NO0768.03 3.0 1.0 7 1739.1 11 14.00 49 4
NO0768.04 1.0 7.0 3 1552.6 52 33.00 115 62
NO0768.05 4.0 11.0 40 2505.7 45 36.00 146 69
NO0768.06 2.0 1.0 25 3789.1 47 31.00 164 124
NO0768.07 1.0 6.0 83 4071.2 43 47.00 141 55
NO0768.08 7.0 11.0 2 1746.9 38 40.00 114 80
NO0768.09 8.0 2.0 14 1824.9 36 17.00 97 38
NO0768.10 8.0 2.0 32 2256.0 17 21.00 146 9
------------------
Sample No. Ga* S% V* Cr* Mn* Fe% Th* U* W*
A0040-EN001P1 30.00 8.97 501 9.69
A0040-EN001P1 30.00 10.00 878 25.80
A0040-EN001P2 10.00 .12 384 4.52
A0040-EN001P2 20.00 7.00 509 7.84
A0040-EN002P2 20.00 3.19 622 5.75
A0040-EN003P1 30.00 10.00 879 14.60
A0040-EN003P1 30.00 7.02 970 8.84
A0040-EN003P2 30.00 10.00 819 19.00
A0040-EN003P3 20.00 6.85 607 8.28
A0040-EN021P1 20.00 6.68 266 8.77
A0040-EN021P2 20.00 2.44 203 3.58
A0040-PJ001P1 20.00 5.90 311 5.47
A0040-PJ002P1 20.00 3.33 382 5.32
A0040-PJ002P2 20.00 3.21 332 5.36
A0040-PJ008P1 20.00 1.49 312 3.78
A0040-PJ008P2 20.00 1.96 557 4.53
A0040-PJ008P3 20.00 3.61 692 6.02
HF-01 10 155 4.12 12.00 3.00
HF-02 70 465 5.34 11.00 6.00
HF-03 20 775 2.80 8.00 12.00
HF-04
HF-05 -10 1162 28.95 1.00 5.00
HF-06 -10 697 6.88 5.00 10.00
HF-07 -10 852 29.38 1.00 8.00
HF-08 10 310 5.82 7.00 3.00
HF-09 20 1007 5.53 6.00 6.00
HF-10 10 697 15.74 -1.00 5.00
NO0768.01 1.26 2 2 35 .73 1.00 5.00 1
NO0768.02 8.83 21 1 679 5.21 7.00 6.00 1
NO0768.03 13.51 3 1 611 5.56 3.00 5.00 1
NO0768.04 15.43 4 1 884 14.38 4.00 5.00 2
NO0768.05 23.09 8 1 1336 15.47 4.00 5.00 3
NO0768.06 25.19 8 1 1743 20.37 6.00 8.00 2
NO0768.07 23.70 20 1 1773 22.59 7.00 15.00 2
NO0768.08 12.73 6 2 920 15.49 6.00 5.00 1
NO0768.09 31.29 25 2 1517 38.50 4.00 8.00 1
NO0768.10 16.40 6 1 937 8.64 4.00 5.00 2
------------------
Sample No. Sr* La* B*
A0040-EN001P1
A0040-EN001P1
A0040-EN001P2
A0040-EN001P2
A0040-EN002P2
A0040-EN003P1
A0040-EN003P1
A0040-EN003P2
A0040-EN003P3
A0040-EN021P1
A0040-EN021P2
A0040-PJ001P1
A0040-PJ002P1
A0040-PJ002P2
A0040-PJ008P1
A0040-PJ008P2
A0040-PJ008P3
HF-01
HF-02
HF-03
HF-04
HF-05
HF-06
HF-07
HF-08
HF-09
HF-10
NO0768.01 1.0 2.00 6
NO0768.02 51.0 7.00 31
NO0768.03 1.0 2.00 28
NO0768.04 15.0 2.00 44
NO0768.05 10.0 3.00 48
NO0768.06 9.0 3.00 71
NO0768.07 13.0 4.00 84
NO0768.08 47.0 3.00 55
NO0768.09 10.0 3.00 67
NO0768.10 4.0 2.00 36

The fact sheet was created on 28.04.2024
Questions or comments regarding the fact sheet can be emailed to:
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Copyright © 2024 Geological Survey of Norway