Norsk versjon
	THE ORE DATABASE
	Deposit Area 1805 - 019
	(Last updated 26.apr.2020)

Importance

Public:

Not Assessed (reg. 18.02.2015)

Economical:

Not classified/evaluated

Mineralization

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

Main grain size:

Main alteration:

	Strike/Dip:		Direction:
			Plunge:

Stratigraphic classification of host rock

Era:

Period:

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

Group:

Formation:

Information(s) in free text format

Free text

The Toppan iron formation is assumed to be a northwards extension of the Sjåfjell IF. The trenches described by Foslie (1949) were not discovered, but the IF could be studied in minor outcrops close to the top of the hill where the bedrock is dominated by rusty, garnet-bearing mica schist. Concordant to sub-concordant quartz veins are common within the schist. Only 50-60 cm thick sequence of iron formation is exposed, and is underlying the mica schist. Stratigraphically, 3-4 m below occur similar mica schist. The IF comprises magnetite and quartz in a few mm to 1 cm thin bands (Sample JSFE1415).

Fieldsamples

	Sample No.	Sample type	Miscellanrous
	JSFE1415	Bedrock	Sampler :Jan Sverre Sandstad Comment :Kvartsbåndet magnetittmalm, finkornet No. of registrated element analyses = 1 No. of registrated oxide analyses = 1

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

Name of Sample point : Heggelia

(Object Id : 1805,019,00,01)

---

Location

County :

Nordland (18)

Municipality :

Narvik (1805)

Map 1:50000:

Skjomen (1331-1)

Map 1:250000:

Narvik

Marking point:

Longitude:

17.2537190

Latitude:

68.3880030

EU89-UTM Zone 33

(Coordinates IS confirmed)

X-coord:

592619 m.

Y-coord:

7587817 m.

Commodity

	Main Type:	Ferrous metals(Fe, Mn, Ti)	Sub Type:	Iron
			Element(s):	Fe P

Fieldsamples

	Sample No.	Sample type	Miscellanrous
	Fe15-14	Bedrock	Sampler :Bjerkgård/Raaness/...Stored :Løkken Comment :Slirer av magnetitt i amfibol-biotitt-kvartsbergart No. of registrated oxide analyses = 1
	Fe15-15	Bedrock	Sampler :Bjerkgård/Raaness/...Stored :Løkken Comment :Massiv, sliret magnetittmalm No. of registrated oxide analyses = 1

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

---

Analyse Results

from

Deposit Area 1805 - 019 Toppan

Element analyses

( *=parts pr. million, #=parts pr.billion, Negative values means below detection limit value.)

Sample No.	Sample Type	Cu*	Zn*	Pb*	Co*	Ni*	Au#	As*
JSFE1415	Bedrock	8	31	6	2	7	.3	1

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

Sample No.	Ba*	Mo*	Ga*	V*	Cr*	Th*	U*	Rb*	Sr*
JSFE1415	4539	0.30	9.10	94	21	2.20	0.70	32.6	587.6

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

Sample No.	Y*	Zr*	Nb*	Ta*	Cs*	La*	Ce*	Pr*	Nd*
JSFE1415	30.1	60	5.20	0.30	4.40	12.90	25.50	3.33	14.20

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

Sample No.	Sm*	Eu*	Gd*	Tb*	Dy*	Ho*	Er*	Tm*	Yb*
JSFE1415	3.16	0.90	4.15	0.72	4.28	0.96	2.82	0.46	2.63

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

Sample No.	Lu*	Hf*
JSFE1415	0.42	1.40

Oxide analyses

( All values are in % )

Sample No.	Sample Type	SiO2	Al2O3	TiO2	Fe2O3	MnO	MgO	CaO
Fe15-14	Bedrock	42.39	4.96	0.37	31.45	0.11	4.42	8.48
Fe15-15	Bedrock	43.81	5.90	0.48	25.53	0.09	3.31	6.41
JSFE1415	Bedrock	35.43	3.54	0.33	46.97	0.04	0.33	6.53

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

Sample No.	Na2O	K2O	P2O5	Loss	Sum
Fe15-14	0.67	1.30	2.01	0.84	97.00
Fe15-15	1.19	1.60	1.03	8.55	98.00
JSFE1415	0.88	0.81	4.97	-0.79	99.00

---

The fact sheet was created on 17.05.2024

Questions or comments regarding the fact sheet can be emailed to: ressursdatabaser@ngu.no

Copyright © 2024 Geological Survey of Norway