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THE INDUSTRIAL MINERAL DATABASE
Occurence 1824 - 302 Drevdalen
(Object Id: 7397)
(Last updated: 12.07.2004)
Location
County: Nordland Municipality: Vefsn (1824)
Map 1:50000: Mosjøen (1826-1) Map 1:250000: Mosjøen
Coordinate system: EU89-UTM Zone 33
East: 416932 m. North: 7317298 m.
Longitude: 13.1720320 Latitude: 65.9657070
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Resource
Resource Type: Carbonates Resource Subtype: Dolomite

Importance
Raw material meaning: Little Importance (reg. 18.02.2015)


Products
Element/product Crude ore grade or quality Reg. date
Agricultural lime 19.02.2001
Filler 19.02.2001

Operations
From - To Activity Comments
Geochemistry
Sampling

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

Mineralogy
Mineral Amount
Dolomite Major mineral (>90%)
Quartz Subordinate mineral (1-10%)
Calcite Subordinate mineral (1-10%)
Apatite Accessory mineral (<1%)
Epidote Accessory mineral (<1%)
Olivine Accessory mineral (<1%)
Graphite Accessory mineral (<1%)
Pyrite Accessory mineral (<1%)
Chlorite Accessory mineral (<1%)
Feldspar Accessory mineral (<1%)
Tremolite Accessory mineral (<1%)

Information(s) in free text format
Free text
Drevvatn dolomitt/kalksteinsfelt ligger på nordsiden av Drevvatnet og strekker seg langs foten av Toven og Lillefjellet. Formasjonen stryker sydvest- nordøst med fall mot NV på ca. 80o. Formasjonens mektighet og strøkretning er tilnærmet stabil på hele strekningen. Formasjonen inneholder en del mindre diabasganger. De omkringliggende bergartene er hornblendeskifre, ulike typer glimmerskifre og granitter. Formasjonen kan følges mer eller mindre sammenhengende fra Skravlåa i nord til Kalåen i syd en strekning på ca. 8.5 km. Ved Skravlåa er mektigheten anslått til ca. 140 m. Mektigheten ved Kalå bru er anslått til ca. 120 m.

Bibliography:
From NGU's Reference Archive:
Bøckman, K.L. , 1967
Norges kalksteins- og kvartsforekomster.
;Elektrokemisk A/S;FAGRAPPORT; UTREDNINGSRAPPORT;Bergarkivet; No.BA 5245;89 + 61 pages

Fieldsamples
Sample No. Sample type Miscellanrous
NO0096.01 Bedrock
Comment: Skravlå nr.1, Overflateprøve
No. of registrated CaOMgO analyses = 1
NO0096.02 Bedrock
Comment: Skravlå nr.2, Overflateprøve
No. of registrated CaOMgO analyses = 1
NO0096.03 Bedrock
Comment: Skravlå nr.3, Overflateprøve
No. of registrated CaOMgO analyses = 1
NO0096.04 Bedrock
Comment: Skravlå nr.4, Overflateprøve
No. of registrated CaOMgO analyses = 1
NO0096.05 Bedrock
Comment: Bugtelv nr. 1, Overflateprøve
No. of registrated CaOMgO analyses = 1
NO0096.06 Bedrock
Comment: Bugtelv nr. 2, Overflateprøve
No. of registrated CaOMgO analyses = 1
NO0096.07 Bedrock
Comment: Bugtelv nr. 3, Overflateprøve
No. of registrated CaOMgO analyses = 1
NO0096.08 Bedrock
Comment: Bugtelv nr. 4, Overflateprøve
No. of registrated CaOMgO analyses = 1
NO0096.09 Bedrock
Comment: Svartbekk nr.1, Overflateprøve
No. of registrated CaOMgO analyses = 1
NO0096.10 Bedrock
Comment: Kalåen nr. 1, Overflateprøve
No. of registrated CaOMgO analyses = 1
NO0096.11 Bedrock
Comment: Kalåen nr. 2, Overflateprøve
No. of registrated CaOMgO analyses = 1
NO0096.12 Bedrock
Comment: Kalåen nr. 3, Overflateprøve
No. of registrated CaOMgO analyses = 1
NO0096.13 Bedrock
Comment: Kalåen nr. 4, Overflateprøve
No. of registrated CaOMgO analyses = 1
NO0096.14 Bedrock
Comment: OØ 1998-2. Overflateprøve
No. of registrated oxide analyses = 1
No. of registrated thinsection analyses = 1
NB! All analyse values are shown at the end of the printout.:

Analyse Results
from
Deposit Area 1824 - 302 Drevdalen

Analysis of acid soluble CaO and Mgo
Analyzed values Derived values
Sample No. Sample Type Acid soluble CaO Acid soluble MgO Dolomite Calcite Unsolved
NO0096.01 Bedrock 31.00% 20.25% 92.62% 5.06% 2.32%
NO0096.02 Bedrock 31.00% 20.00% 91.48% 5.68% 2.84%
NO0096.03 Bedrock 31.20% 20.90% 95.59% 3.80% .60%
NO0096.04 Bedrock 30.60% 21.40% 97.88% 1.49% .63%
NO0096.05 Bedrock 31.15% 20.56% 94.04% 4.56% 1.40%
NO0096.06 Bedrock 31.30% 20.80% 95.14% 4.23% .63%
NO0096.07 Bedrock 30.15% 20.90% 95.59% 1.93% 2.48%
NO0096.08 Bedrock 30.65% 21.27% 97.29% 1.90% .81%
NO0096.09 Bedrock 31.35% 17.95% 82.10% 11.39% 6.50%
NO0096.10 Bedrock 30.92% 21.23% 97.10% 2.48% .41%
NO0096.11 Bedrock 30.84% 21.20% 96.97% 2.42% .62%
NO0096.12 Bedrock 33.94% 13.27% 60.70% 27.63% 11.67%
NO0096.13 Bedrock 30.75% 21.37% 97.74% 1.83% .42%

Oxide analyses
( All values are in % )
Sample No. Sample Type SiO2 Al2O3 TiO2 Fe2O3 MnO MgO CaO
NO0096.14 Bedrock 1.63 0.02 0.01 0.06 0.01 2.05 52.70
------------------
Sample No. Na2O K2O P2O5 Sum
NO0096.14 -0.10 0.03 0.05 56.00

Thinsection analyses
Sample No.
NO0096.14 Sample Type : Bedrock (Thinsection Id. :Ø98-2)
Description: See Pictures for description

The fact sheet was created on 25.04.2024
Questions or comments regarding the fact sheet can be emailed to:
ressursdatabaser@ngu.no
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