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THE ORE DATABASE
Occurence 1566 - 005 Bøvraslia
(Object Id: 4614)
(Last updated: 27.01.2023)
Location
County: Møre og Romsdal Municipality: Surnadal (1566)
Map 1:50000: Stangvik (1420-4) Map 1:250000: Ålesund
Coordinate system: EU89-UTM Zone 32
East: 482565 m. North: 6985031 m.
Longitude: 8.6558550 Latitude: 62.9945800
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Resource
Resource Type: Base metals (Cu,Zn,Pb,Fe sulphides, As,Sb,Bi,Sn) Resource Subtype: Sulphides
Element(s): Kis
Importance
Raw material meaning: Not Assessed (reg. 18.02.2015)

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


Mineralization
Era: Paleozoic Period: Cambrian
Genesis: Volcex Form: Lens
Main texture: Porphyroblastic Min. distribution: Semi-massive (20-50 % ore minerals)
Main grain size: Medium grained (1-3 mm) Main alteration:
Strike/Dip: 115 / 65 Direction:
Plunge:
Stratigraphic classification of host rock
Era: Paleozoic Period: Cambrian
Province: Caledonides
Geotec.unit: Blåhø-Surna Nappe Complex
Tectonic complex: Surnadekket
Igneous complex:
Group: Formation:

Mineralogy
Relationship Mineral Amount
Gangue mineral Quartz Major mineral (>10%)
Gangue mineral Mica Subordinate mineral (1-10%)
Gangue mineral Feldspar Subordinate mineral (1-10%)
Ore mineral Pyrrhotite Major mineral (>10%)
Ore mineral Chalcopyrite Subordinate mineral (1-10%)

Lithology:
Relationship Rock Origin
Wall rock Mica gneiss Extrusive
Original rock :Rhyodacite
Metamorphic facies :Amphibolite
Wall rock Granet-hornblende-mica gneiss Extrusive
Original rock :Basalt
Metamorphic facies :Amphibolite

Structures
Location: Type: Orientation(360 gr.): Relation to min.:
Wall rock Foliation Strike/Dip :115 / 65 Post-mineralisation ;...Effect :Modifies

Information(s) in free text format
Free text
Forekomsten ligger i et hogstfelt i Bøvraslia ovenfor en traktorvei. Den består av et 2 x 2 m innhugg med en opptil 2 m høy vegg i nord og noen mindre arbeider over en lengde på ca. 15 m langs strøkretningen. Sulfidsonen er linseformet og ca. 0,5 m mektig og består av semimassiv magnetkis med linser/øyne av kvarts og feltspat. I ligg av denne, ovenfor skjerpet finnes kvarts-glimmergneis med foliasjon 115°/65°, mens granat-glimmergneis dominerer nedenfor.

Bibliography:
From NGU's Reference Archive:
Ursin, M. , 1914
Rapport over Surnadalens svovelkisfelt.
;Norges geologiske undersøkelse;FAGRAPPORT;Bergarkivet; No.BA 251;3 pages
Abstract:
Rapporten gir en orientering om forekomsten og er nermest en historisk oppsummering. Rapporten er lik rapport 2144 og 347.

References not to be found in NGU's Reference Archive.:
Wulff, P. 2010. Norrbotten Exploration AB’s exploration in West-Norway between Trondheim and Stavanger, 2010. BV Report 10097, 50 pp.

Fieldsamples
Sample No. Sample type Miscellanrous
JS-MR2202 Dump
Sampler: J.S. Sandstad/...Stored: Løkken/...Size(kg): 2
Comment: Semi-massive pyrrhotite, quartz/feldspar lenses
No. of registrated element analyses = 1
NB! All analyse values are shown at the end of the printout.:

Analyse Results
from
Deposit Area 1566 - 005 Bøvraslia

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#
JS-MR2202 Dump 355 416 18 27 126 .9 12.0
------------------
Sample No. Pt# Pd# As* Cd* Ba* Mo* Sn* Sb* Bi*
JS-MR2202 8.0 4.0 6 2.1 160 16.30 2 -0 0
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Sample No. Se* Ga* Ge* In* S% V* Cr* Mn* Fe%
JS-MR2202 8.00 7.04 0.20 0.09 11.50 273 66 3730 29.20
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Sample No. Th* U* W* Rb* Sr* Y* Zr* Nb* Ta*
JS-MR2202 4.14 9.00 0 13.0 55.0 30.6 51 3.90 0.34
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Sample No. Cs* La* Ce* Li* Be* P* Sc* Te* Hf*
JS-MR2202 0.63 19.60 30.80 11 0 2060 8.90 0.54 1.40
------------------
Sample No. Re* Tl*
JS-MR2202 38 0

The fact sheet was created on 05.05.2024
Questions or comments regarding the fact sheet can be emailed to:
ressursdatabaser@ngu.no
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