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THE INDUSTRIAL MINERAL DATABASE
Occurence 1820 - 313 Rødøyfjellet og Haltøy
(Object Id: 14972)
(Last updated: 11.10.2010)
Location
County: Nordland Municipality: Alstahaug (1820)
Map 1:50000: Tjøtta (1826-4) Map 1:250000: Mo i Rana
Coordinate system: EU89-UTM Zone 33 (Coordinates NOT confirmed)
East: 387999 m. North: 7302499 m.
Longitude: 12.5486730 Latitude: 65.8241880
Show on map
Resource
Resource Type: Olivine Resource Subtype: Ultramafic (unspec.)

Importance
Raw material meaning: Not Assessed (reg. 18.02.2015)


Mineralization
Genesis: Form:
Main texture: Min. distribution:
Main grain size:
Strike/Dip: Direction:
Plunge:
Stratigraphic classification of host rock
Era: Period:
Province:
Geotec.unit:
Tectonic complex:
Igneous complex:
Group: Formation:

Bibliography:
From NGU's Reference Archive:
Bang, Nils Anton , 1985
The stratigraphy and structural development of the Røøy-Haltøy area, outer Vefsn Fjord.
;UiB Geologisk inst. Avd. A;AVHANDLING

Nilsson, Lars P. , 1979
Undersøkelse av ultramafiske bergarter og krommalm på Rødøya/Rypen og Vikholmen, Alstadhaug, Nordland.
;Norges geologiske undersøkelse;FAGRAPPORT;NGU-rapport; No.1650/31A;18 pages
Abstract:
Ultramafiske bergarter er mikroskopert og kjemisk analysert på hovedelementer og utvalgte sporelementer uten at umiddelbart økonomisk interessante konsen- trasjoner av noe mineral eller element er oppdaget. Økonomisk interessante konsentrasjoner av industrimineraler finnes muligens, men ble ikke observert under befaringen på øya. De mikroskoperte bergarter viste alle i varierende grad sekundær omvandling av olivin og pyroksen. Krommalm-prøver (impregnasjonsmalm og kompakt- malm) er mikroskopert og kjemisk analysert. Gehalter av malmmineraler (kromitt og ferrikromitt) er tilfredsstillende for de to observerte fore- komstene (lok. 2 og lok. 4 på tegn. 01). Den kjemisk analyserte prøve (impreg- nasjonsmalm fra lok. 4) indikerer at kromittfasen har en gunstig kjemisk sammensetning med blant annet høyt krominnhold og høyt Cr/Fe-forhold. De ut- drevne malmkropper har imidlertid vært meget små. Tilsammen er 24 tonn krom- malm tatt ut. Kun ubetydelige kromittanrikninger ble observert ellers i feltet (cm-skala). Bergartene på Rødøya er meget godt blottet og primærmagmatisk lagning kan iakttas flere steder.

Fieldsamples
Sample No. Sample type Miscellanrous
NGUAK96032 Bedrock
Comment: This is a dummy sample that does not excists. The assosciated analyses have been compiled from various published and unpublished reports
No. of registrated oxide analyses = 1
NGUAK96033 Bedrock
Comment: This is a dummy sample that does not excists. The assosciated analyses have been compiled from various published and unpublished reports
No. of registrated oxide analyses = 1
NGUAK96034 Bedrock
Comment: This is a dummy sample that does not excists. The assosciated analyses have been compiled from various published and unpublished reports
No. of registrated oxide analyses = 1
NGUAK96035 Bedrock
Comment: This is a dummy sample that does not excists. The assosciated analyses have been compiled from various published and unpublished reports
No. of registrated oxide analyses = 1
NGUAK96036 Bedrock
Comment: This is a dummy sample that does not excists. The assosciated analyses have been compiled from various published and unpublished reports
No. of registrated oxide analyses = 1
NGUAK96037 Bedrock
Comment: This is a dummy sample that does not excists. The assosciated analyses have been compiled from various published and unpublished reports
No. of registrated oxide analyses = 1
NGUAK96038 Bedrock
Comment: This is a dummy sample that does not excists. The assosciated analyses have been compiled from various published and unpublished reports
No. of registrated oxide analyses = 1
NGUAK96039 Bedrock
Comment: This is a dummy sample that does not excists. The assosciated analyses have been compiled from various published and unpublished reports
No. of registrated oxide analyses = 1
NGUAK96040 Bedrock
Comment: This is a dummy sample that does not excists. The assosciated analyses have been compiled from various published and unpublished reports
No. of registrated oxide analyses = 1
NGUAK96041 Bedrock
Comment: This is a dummy sample that does not excists. The assosciated analyses have been compiled from various published and unpublished reports
No. of registrated oxide analyses = 1
NGUHG96037 Bedrock
Comment: This is a dummy sample that does not excists. The assosciated analyses have been compiled from various published and unpublished reports
No. of registrated oxide analyses = 1
NGUHG96038 Bedrock
Comment: This is a dummy sample that does not excists. The assosciated analyses have been compiled from various published and unpublished reports
No. of registrated oxide analyses = 1
NGUHG96039 Bedrock
Comment: This is a dummy sample that does not excists. The assosciated analyses have been compiled from various published and unpublished reports
No. of registrated oxide analyses = 1
NGUHG96040 Bedrock
Comment: This is a dummy sample that does not excists. The assosciated analyses have been compiled from various published and unpublished reports
No. of registrated oxide analyses = 1
NGUHG96041 Bedrock
Comment: This is a dummy sample that does not excists. The assosciated analyses have been compiled from various published and unpublished reports
No. of registrated oxide analyses = 1
NGUHG96042 Bedrock
Comment: This is a dummy sample that does not excists. The assosciated analyses have been compiled from various published and unpublished reports
No. of registrated oxide analyses = 1
NGUHG96043 Bedrock
Comment: This is a dummy sample that does not excists. The assosciated analyses have been compiled from various published and unpublished reports
No. of registrated oxide analyses = 1
NGUHG96044 Bedrock
Comment: This is a dummy sample that does not excists. The assosciated analyses have been compiled from various published and unpublished reports
No. of registrated oxide analyses = 1
NGUHG96045 Bedrock
Comment: This is a dummy sample that does not excists. The assosciated analyses have been compiled from various published and unpublished reports
No. of registrated oxide analyses = 1
NGUHG96046 Bedrock
Comment: This is a dummy sample that does not excists. The assosciated analyses have been compiled from various published and unpublished reports
No. of registrated oxide analyses = 1
NB! All analyse values are shown at the end of the printout.:

Analyse Results
from
Deposit Area 1820 - 313 Rødøyfjellet og Haltøy

Oxide analyses
( All values are in % )
Sample No. Sample Type SiO2 Al2O3 TiO2 Fe2O3 MnO MgO CaO
NGUAK96032 Bedrock 39.20 0.15 0.00 8.70 0.14 47.80 0.12
NGUAK96033 Bedrock 40.00 0.27 0.00 7.30 0.08 43.70 0.05
NGUAK96034 Bedrock 36.40 0.14 0.00 8.10 0.10 41.80 0.04
NGUAK96035 Bedrock 40.80 0.42 0.00 8.00 0.10 40.80 1.73
NGUAK96036 Bedrock 37.80 0.48 0.00 9.90 0.12 42.80 0.51
NGUAK96037 Bedrock 50.40 0.78 0.00 3.70 0.06 26.10 15.18
NGUAK96038 Bedrock 40.40 0.60 0.00 8.40 0.10 39.80 1.13
NGUAK96039 Bedrock 39.20 0.31 0.00 9.30 0.12 45.60 0.08
NGUAK96040 Bedrock 39.10 0.27 0.00 10.20 0.13 47.00 0.08
NGUAK96041 Bedrock 34.00 1.97 0.00 11.20 0.18 40.70 0.67
NGUHG96037 Bedrock 37.60 0.20 0.00 8.70 0.12 43.80 0.12
NGUHG96038 Bedrock 41.00 0.30 0.00 7.60 0.11 39.90 2.02
NGUHG96039 Bedrock 38.60 0.24 0.00 7.70 0.13 43.10 0.08
NGUHG96040 Bedrock 37.40 0.46 0.00 10.20 0.14 44.10 0.08
NGUHG96041 Bedrock 40.00 0.43 0.00 8.10 0.11 41.30 0.58
NGUHG96042 Bedrock 38.40 0.28 0.00 9.70 0.13 45.80 0.06
NGUHG96043 Bedrock 40.40 0.41 0.00 8.50 0.12 43.40 0.05
NGUHG96044 Bedrock 38.70 0.35 0.00 9.50 0.13 46.30 0.05
NGUHG96045 Bedrock 39.20 0.26 0.00 9.40 0.14 46.60 0.05
NGUHG96046 Bedrock 39.10 0.20 0.00 9.90 0.13 47.40 0.05
------------------
Sample No. Na2O K2O P2O5 Loss Sum
NGUAK96032 0.01 0.00 0.00 3.54 100.00
NGUAK96033 0.00 0.00 0.00 7.84 99.00
NGUAK96034 0.01 0.00 0.00 13.13 100.00
NGUAK96035 0.04 0.00 0.00 7.41 99.00
NGUAK96036 0.02 0.00 0.00 8.27 100.00
NGUAK96037 0.30 0.01 0.00 3.61 100.00
NGUAK96038 0.04 0.00 0.00 9.25 100.00
NGUAK96039 0.03 0.00 0.00 4.26 99.00
NGUAK96040 0.00 0.00 0.00 2.97 100.00
NGUAK96041 0.04 0.00 0.00 2.72 91.00
NGUHG96037 0.01 0.00 0.00 8.50 99.00
NGUHG96038 0.04 0.00 0.00 8.27 99.00
NGUHG96039 0.01 0.00 0.00 10.20 100.00
NGUHG96040 0.03 0.00 0.00 6.24 99.00
NGUHG96041 0.01 0.00 0.00 8.05 99.00
NGUHG96042 0.00 0.00 0.00 5.26 100.00
NGUHG96043 0.00 0.00 0.00 7.06 100.00
NGUHG96044 0.01 0.00 0.00 3.79 99.00
NGUHG96045 0.02 0.00 0.00 4.21 100.00
NGUHG96046 0.01 0.00 0.00 2.85 100.00

The fact sheet was created on 26.04.2024
Questions or comments regarding the fact sheet can be emailed to:
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