Fact Sheet for Deposit Area 1824

					Norsk versjon
	THE INDUSTRIAL MINERAL DATABASE
	Deposit Area 1824 - 302
	(Last updated 12.jul.2004)

Name of Deposit Area : Drevdalen

(Object Id : 1824,302,00,00)

Location

County :

Nordland (18)

Municipality :

Vefsn (1824)

Map 1:50000:

Mosjøen (1826-1)

Map 1:250000:

Mosjøen

Marking point:

Longitude:

13.1720320

Latitude:

65.9657070

EU89-UTM Zone 33

(Coordinates IS confirmed)

X-coord:

416932 m.

Y-coord:

7317298 m.

Commodity

Main Type:

Carbonates

Sub Type:

Dolomite

Importance

Public: Little Importance (reg. 18.02.2015)

Economical: Minor interest , (Confirmed 14.sep.2001 by Havard Gautneb)

Products

Element/product Crude ore grade or quality

AGRLIM

FILLER

Operations

From - To Activity Comments

Geochemistry

Sampling

Mineralization

Era: Period:

Dating: Method:

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

Relationship Mineral Amount

Not defined Dolomite Major mineral (>90%)

Not defined Quartz Subordinate mineral (1-10%)

Not defined Calcite Subordinate mineral (1-10%)

Not defined Apatite Accessory mineral (<1%)

Not defined Epidote Accessory mineral (<1%)

Not defined Olivine Accessory mineral (<1%)

Not defined Graphite Accessory mineral (<1%)

Not defined Pyrite Accessory mineral (<1%)

Not defined Chlorite Accessory mineral (<1%)

Not defined Feldspar Accessory mineral (<1%)

Not defined 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

	Element/product	Crude ore grade or quality
	AGRLIM
	FILLER

	Era:		Period:
	Dating:		Method:
	Genesis:		Form:
	Main texture:		Min. distribution:

	Province:	Caledonides
	Geotec.unit:
	Tectonic complex:
	Igneous complex:

Relationship	Mineral	Amount
Not defined	Dolomite	Major mineral (>90%)
Not defined	Quartz	Subordinate mineral (1-10%)
Not defined	Calcite	Subordinate mineral (1-10%)
Not defined	Apatite	Accessory mineral (<1%)
Not defined	Epidote	Accessory mineral (<1%)
Not defined	Olivine	Accessory mineral (<1%)
Not defined	Graphite	Accessory mineral (<1%)
Not defined	Pyrite	Accessory mineral (<1%)
Not defined	Chlorite	Accessory mineral (<1%)
Not defined	Feldspar	Accessory mineral (<1%)
Not defined	Tremolite	Accessory mineral (<1%)

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%

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