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	MALMDATABASEN
	Forekomstområde 1833 - 093
	(Sist oppdatert 01.mar.2005)

Betydning

Offentlig:

Little Importance (reg. 18.02.2015)

Economical:

Lite viktig , (Confirmed 01.mar.2005 by Agnes Raaness)

Products

	Element/product	Crude ore grade or quality
	FE	39 %

Operations

	From - To	Activity	Comments
	1890 - 1890	Pitting
	1962 - 1962	Geophysics	Company/Institution :NGU
	1965 - 1965	Geology	Company/Institution :Rana Gruber
	1977 - 1977	Geology	Company/Institution :Rana Gruber

Mineralization

	Era:	Proterozoic	Period:	Neoproterozoic
	Dating:		Method:
	Genesis:	Sedeks	Form:	Lag
	Main texture:	Båndet	Min. distribution:	Massiv

Main grain size:

Finkornet (<1 mm)

Main alteration:

	Strike/Dip:	270 / 20	Direction:	90
			Plunge:	20

Stratigraphic classification of host rock

Era:

Proterozoic

Period:

Neoproterozoic

	Province:	Caledonides
	Geotec.unit:	Rødingsfjell Nappe Complex
	Tectonic complex:	Midtre allokton
	Igneous complex:

Group:

Ørtfjell

Formation:

Dunderland

Mineralogy

	Relationship	Mineral	Amount
	Gangue mineral	Quartz	Major mineral (>10%)
	Gangue mineral	Garnet	Major mineral (>10%)
	Gangue mineral	Amphibole	Major mineral (>10%)
	Ore mineral	Hematite	Major mineral (>10%)
	Ore mineral	Magnetite	Major mineral (>10%)

Lithology:

	Relationship	Rock	Origin
	Unknown	Glimmerskifer	Sedimentary Original rock :Greywacke
			Metamorphic facies :Amphibolite
	Unknown	Amfibolitt	Extrusive Original rock :Basalt
			Metamorphic facies :Amphibolite

Structures

	Location:	Type:	Orientation(360 gr.):	Relation to min.:
	Unknown	Primary layering	Strike/Dip :270 / 20	Syn-mineralisation ;...Effect :None

Opplysning(er) i fritekstformat

Fri tekst

Bjørnå granat-cummingtonitt-magnetittmalm og mt.-hem.-malm ----------------------------------------------------------- De viktigste malmsteder er: M.o.h. UTM-øst-nord Bjørnå-Dalenghei 80 4 65 550-73 67 550 Bjørnå-Dalenghei 80 4 65 550-73 67 450 Bjørnå 180 4 65 000-73 67 500 Bjørnå 190 4 64 950-73 67 400 Bjørnå 250 4 64 650-73 67 500 Bjørnå 330 4 64 300-73 67 450 Langs en 1 500m lang strøklengde er de totale malm-reserver bare : 1.1 mill.tonn granat-cummingtonitt-magnetittmalm og 0.2 mill.tonn mt.-hem.- malm. Granat-cumm.mt.-malmen danner en linjal-formet 50 m bred og 6-10 m tykk oppsplittet malm-linjal som heller 20 grader mot øst. Diamantboring (5 hull sum 389 m i 1980) 30-130 m nord for malmutgående ga ingen malmsnitt,men 2 X 2.9 = 5.8 mill. tonn ren stink-kalk som kan tas i to 500 m lange, 100-120 m brede og 30-40 m dype dagbrudd med kalk-gehalt: 53.1 % CaO 0.9 % MgO 2.2 % uløst(syreuløst) 0.048 % P 0.06 % S 0.08 % Na2O+K2O Det er analysert 23 prøver granat-cumm. mt.-malm og 2 prøver hem.-malm ved Norsk Jernverk lab. 1978. Jernmalmprøver fra Bjørnå jernmalmfelt: Merk. Fe tot. Fe magn. TiO2 P S 161 28.6% 4.1% 0.17% 0.06% 0.005% 162 19.8% 5.5% 0.03% 0.09% 0.006% Aritm.middel hematittmalm: 24.2% 4.8% 0.10% 0.07% 163 43.6% 21.6% 0.22% 0.26% 0.014% 164A 50.3% 39.7% 0.07% 0.20% 0.014% 164B 34.1% 30.1% 0.30% 0.27% 0.038% 165 47.5% 26.3% 0.08% 0.25% 0.014% 166 37.2% 28.4% 0.05% 0.24% 0.006% 167 34.2% 20.6% 0.05% 0.22% 0.016% 168 42.2% 39.7% 0.08% 0.24% 0.028% 169 26.5% 6.5% 0.54% 0.27% 0.335% 170 45.6% 39.5% 0.23% 0.31% 0.010% 172 37.0% 25.7% 0.29% 0.21% 0.006% 173 45.9% 37.6% 0.30% 0.26% 0.018% 175 46.3% 33.2% 0.13% 0.17% 0.011% 176 39.4% 33.9% 0.10% 0.24% 0.006% 177 32.6% 9.9% 0.33% 0.21% 0.070% 178 37.6% 34.0% 0.09% 0.15% 0.006% 179 42.3% 17.2% 0.10% 0.34% 0.009% 180 33.8% 24.3% 0.17% 0.12% 0.005% 181 33.6% 30.1% 0.17% 0.20% 0.005% 182 39.2% 34.5% 0.27% 0.23% 0.005% 183 38.6% 26.0% 0.06% 0.33% 0.022% 184 41.9% 26.3% 0.19% 0.37% 0.013% 185 47.9% 44.8% 0.11% 0.24% 0.012% 186 34.2% 29.7% 0.13% 0.23% 0.009% Aritm. middel av 23 prøver: 39.6% 28.7% 0.18% 0.24% 0.029%

Fieldsamples

	Sample No.	Sample type	Miscellanrous
	NO0681.03	Bedrock	Sampler :Wilberg, R./...Stored :Løkken Kommentar :Granat-cummingtonitt-mt-malm. No. of registrated element analyses = 1

NB! All analyse values are shown at the end of the printout.:

Navn på sample point : Prøvepunkt 1

(Objekt Id : 1833,093,00,01)

---

Lokalisering

Fylke :

Nordland (18)

Kommune :

Rana (1833)

Kart 1:50000:

Storforshei (2027-4)

Kart 1:250000:

Mo i Rana

Markeringspunkt:

Lengdegrad:

14.2199270

Breddegrad:

66.4227310

EU89-UTM Zone 33

(Coordinates IS confirmed)

X-koord:

465182 m.

Y-koord:

7367247 m.

Materialtype

	Hovedtype:	Jernmetaller (Fe, Mn, Ti)	Subtype:	Jern
			Element(s):	Fe

Fieldsamples

	Sample No.	Sample type	Miscellanrous
	NO0681.01	Bedrock	Sampler :Wilberg, R./...Stored :Løkken Kommentar :Granat-cummingtonitt-mt-malm. No. of registrated element analyses = 1
	NO0681.02	Bedrock	Sampler :Wilberg, R./...Stored :Løkken Kommentar :Fink. massiv mt. No. of registrated element analyses = 1

NB! All analyse values are shown at the end of the printout.:

Navn på locality : Skjerp 1

(Objekt Id : 1833,093,01,00)

---

Lokalisering

Fylke :

Nordland (18)

Kommune :

Rana (1833)

Kart 1:50000:

Mo i Rana (1927-1)

Kart 1:250000:

Mo i Rana

Markeringspunkt:

Lengdegrad:

14.2266480

Breddegrad:

66.4227650

EU89-UTM Zone 33

(Coordinates IS confirmed)

X-koord:

465482 m.

Y-koord:

7367247 m.

Materialtype

	Hovedtype:	Jernmetaller (Fe, Mn, Ti)	Subtype:	Jern
			Element(s):	Fe

Production

	Activity:	Prospektering	Reserves:
	Prod. method:		Production:
	Prod. status:		Volume of dump:

Navn på locality : Skjerp 2

(Objekt Id : 1833,093,02,00)

---

Lokalisering

Fylke :

Nordland (18)

Kommune :

Rana (1833)

Kart 1:50000:

Mo i Rana (1927-1)

Kart 1:250000:

Mo i Rana

Markeringspunkt:

Lengdegrad:

14.2172730

Breddegrad:

66.4251130

EU89-UTM Zone 33

(Coordinates IS confirmed)

X-koord:

465067 m.

Y-koord:

7367514 m.

Materialtype

	Hovedtype:	Jernmetaller (Fe, Mn, Ti)	Subtype:	Jern
			Element(s):	Fe

Production

	Activity:	Prospektering	Reserves:
	Prod. method:		Production:
	Prod. status:		Volume of dump:

Navn på locality : Skjerp 3

(Objekt Id : 1833,093,03,00)

---

Lokalisering

Fylke :

Nordland (18)

Kommune :

Rana (1833)

Kart 1:50000:

Mo i Rana (1927-1)

Kart 1:250000:

Mo i Rana

Markeringspunkt:

Lengdegrad:

14.2132200

Breddegrad:

66.4222490

EU89-UTM Zone 33

(Coordinates IS confirmed)

X-koord:

464882 m.

Y-koord:

7367197 m.

Materialtype

	Hovedtype:	Jernmetaller (Fe, Mn, Ti)	Subtype:	Jern
			Element(s):	Fe

Production

	Activity:	Prospektering	Reserves:
	Prod. method:		Production:
	Prod. status:		Volume of dump:

Navn på locality : Skjerp 4

(Objekt Id : 1833,093,04,00)

---

Lokalisering

Fylke :

Nordland (18)

Kommune :

Rana (1833)

Kart 1:50000:

Mo i Rana (1927-1)

Kart 1:250000:

Mo i Rana

Markeringspunkt:

Lengdegrad:

14.2064720

Breddegrad:

66.4231120

EU89-UTM Zone 33

(Coordinates IS confirmed)

X-koord:

464582 m.

Y-koord:

7367297 m.

Materialtype

	Hovedtype:	Jernmetaller (Fe, Mn, Ti)	Subtype:	Jern
			Element(s):	Fe

Production

	Activity:	Prospektering	Reserves:
	Prod. method:		Production:
	Prod. status:		Volume of dump:

Navn på locality : Skjerp 5

(Objekt Id : 1833,093,05,00)

---

Lokalisering

Fylke :

Nordland (18)

Kommune :

Rana (1833)

Kart 1:50000:

Mo i Rana (1927-1)

Kart 1:250000:

Mo i Rana

Markeringspunkt:

Lengdegrad:

14.1986450

Breddegrad:

66.4226240

EU89-UTM Zone 33

(Coordinates IS confirmed)

X-koord:

464232 m.

Y-koord:

7367247 m.

Materialtype

	Hovedtype:	Jernmetaller (Fe, Mn, Ti)	Subtype:	Jern
			Element(s):	Fe

Production

	Activity:	Prospektering	Reserves:
	Prod. method:		Production:
	Prod. status:		Volume of dump:

---

Analyse Results

from

Forekomstområde 1833 - 093 Bjørnå

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#
NO0681.01	Bedrock	8	5	-3	-1	4	-.3	2.0
NO0681.02	Bedrock	6	11	3	-1	7	-.3	-2.0
NO0681.03	Bedrock	10	10	6	1	9	-.3	-2.0

------------------

Sample No.	Pt#	Pd#	Rh#	As*	Cd*	Ba*	Mo*	Sb*	Bi*
NO0681.01	4.0	-3.0	-5.0	-2	1.6	14	-1.00	-2	5
NO0681.02	-3.0	-3.0	-5.0	-2	2.2	16	2.00	-2	3
NO0681.03	-3.0	-3.0	-5.0	6	3.4	31	2.00	11	42

------------------

Sample No.	S%	V*	Cr*	Mn*	Fe%	Th*	U*	W*	Sr*
NO0681.01	-.01	35	9	919	26.84	2.00	5.00	-2	77.0
NO0681.02	.01	57	20	750	26.59	3.00	-5.00	-2	38.0
NO0681.03	-.01	33	11	419	40.26	2.00	-5.00	-2	51.0

------------------

Sample No.	La*	B*
NO0681.01	3.00	-3
NO0681.02	9.00	-3
NO0681.03	4.00	-3

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Faktaarket ble generert 13.06.2026

Spørsmål eller kommentarer vedrørende faktaarket kan mailes til: ressursdatabaser@ngu.no

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