Norsk versjon
THE ORE DATABASE
Occurence 5510 - 002 Storsurnåsen
(Object Id: 1317)
(Last updated: 07.02.2005)

Location
County: Troms Municipality: Kvæfjord (5510)
Map 1:50000: Kvæfjord (1232-1) Map 1:250000: Narvik
Coordinate system: EU89-UTM Zone 33
East: 549182 m. North: 7630796 m.
Longitude: 16.2178940 Latitude: 68.7842820
Show on map

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

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


Mineralization
Era: Proterozoic Period:
Genesis: Orthomagmatic formation Form: Irregular
Main texture: Structureless Min. distribution: Disseminated (<20 % ore minerals)
Main grain size: Medium grained (1-3 mm) Main alteration:
Strike/Dip: Direction:
Plunge:
Stratigraphic classification of host rock
Era: Proterozoic Period:
Province:
Geotec.unit:
Tectonic complex:
Igneous complex:
Group: Formation:

Mineralogy
Relationship Mineral Amount
Gangue mineral Amphibole Major mineral (>10%)
Gangue mineral Plagioclase Subordinate mineral (1-10%)
Gangue mineral Potassic feldspar Subordinate mineral (1-10%)
Gangue mineral Quartz Subordinate mineral (1-10%)
Ore mineral Chalcopyrite Major mineral (>10%)
Ore mineral Pyrrhotite Major mineral (>10%)

Lithology:
Relationship Rock Origin
Host rock amfibolitt Intrusive
Original rock :Gabbro
Metamorphic facies :Amphibolite

Information(s) in free text format
Free text
Første gang mutet av Lund i 1902. Det er litt usikkert om dette er det aktuelle skjerpet. Det er utsprengt her, men grunnen kan ha vært å planere ovarennet til en gammel hoppbakke. (Steinhoppet står fortsatt lenger ned.) Bergarten er en fin- til middelskornet amfibolitt med små, lyse granittiske utsondringer. Amfibolitten mangler målbar foliasjon, men er oppsprukket i flere retninger. Magnetkis og kobberkis er ujevnt disseminert over de få m2 som er blottet (prøvene 01, 02 og 03). Grovkornet syenitt er blottet like ved.

Bibliography:
From NGU's Reference Archive:
Øines, H. , 1972
Anvisninger i Nordland og Troms.
;Norges geologiske undersøkelse;FAGRAPPORT;Bergarkivet; No.BA 4970;14 pages
Abstract:
Beskrivelse av div. malmanvisninger i Nordland og Troms.

Gustavson, Magne , 1974
Harstad. Beskrivelse til det berggrunnsgeologiske gradteigskart M 8 - 1:100 000 (med fargetrykt kart)
;Norges geologiske undersøkelse;TIDSSKRIFTARTIKKEL; KARTBESKRIVELSE;NGU; Skrifter; No.309; 14;1-33 + ka pages
Abstract:
From a structural point of view the bedrocks of the map area can be subdivided into 1. Precambrian basement (autochthonous), and 2. Allochthonous Caledonian units. The Caledonian sequence embraces a) The lowermost over-thrust units, b) The main unit (Harstad Nappe) and c) The upper units (Straumsbotn Nappe and Niingen (?) Nappe). The main unit belongs to the Seve-KÎli Nappe Complex. The bedrock lithoogies within these units are briefly described. Metasediments, metamorphosed igneous intrusive rocks and possible metavolcanics (some amphibolite layers) are met with in the allochthounous sequence together with deformed Precambrian granite. Within the autochthonous Precambrian, granite and granitic gneiss predominate although meta-gabbro covers a large area in the northwestern part. Ore occurrences (magnetic ore, copper etc.) of the "skarn type" are connected with inclusions of metasediments (marble, mica schist etc.) in the Precambrian granite. The deformation history of the area can be subdivided into 3 episodes (F1, F2, F3) of which F1 and F2 are the most important ones. F1 resulted in mainly recumbent folds with an axial plane schistosity. This F1 schistosity is the regional schistosity now observed.

Fieldsamples
Sample No. Sample type Miscellanrous
TR0365.01 Bedrock
Sampler: Wilberg, R./...Stored: Løkken
Comment: Amfibolitt med po-cpy-diss.
No. of registrated element analyses = 1
TR0365.02 Bedrock
Sampler: Wilberg, R./...Stored: Løkken
Comment: Amfibolitt med po-cpy-diss.
No. of registrated element analyses = 1
TR0365.03 Bedrock
Sampler: Wilberg, R./...Stored: Løkken
Comment: Amfibolitt med po-cpy-diss.
No. of registrated element analyses = 1
NB! All analyse values are shown at the end of the printout.:


Analyse Results
from
Deposit Area 5510 - 002 Storsurnåsen

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#
TR0365.01 Bedrock 4300 113 18 14 33 -1.0 1105.0
TR0365.02 Bedrock 16600 166 26 13 25 -1.0 2220.0
TR0365.03 Bedrock 3110 204 62 13 25 -1.0 285.0
------------------
Sample No. Pt# Pd# As* Cd* Ba* Mo* Sn* Sb* Bi*
TR0365.01 3.0 5.0 -20 -1.0 61 1.33 -20 -20 -20
TR0365.02 3.0 6.0 -20 -1.0 65 1.60 -20 -20 -20
TR0365.03 3.0 6.0 -20 -1.0 53 2.48 -20 -20 -20
------------------
Sample No. S% V* Cr* Mn* Fe% Th* U* Sr* La*
TR0365.01 .33 69 43 707 5.99 -30.00 -30.00 20.9 16.40
TR0365.02 1.26 50 41 555 9.33 -30.00 -30.00 21.2 24.00
TR0365.03 .32 76 52 679 5.72 -30.00 -30.00 17.9 5.58
------------------
Sample No. B*
TR0365.01 -5
TR0365.02 -5
TR0365.03 -5


The fact sheet was created on 29.04.2024

Questions or comments regarding the fact sheet can be emailed to:
ressursdatabaser@ngu.no
Copyright © 2024 Geological Survey of Norway