Fact Sheet for Deposit Area 1849

					Norsk versjon
	THE ORE DATABASE
	Deposit Area 1849 - 002
	(Last updated 23.okt.2024)

Name of Deposit Area : Reinokskardet

(Object Id : 1849,002,00,00)

Location

County :

Nordland (18)

Municipality :

Hamarøy (1849)

Map 1:50000:

Linnajavrre (2230-3)

Map 1:250000:

Sulitjelma

Marking point:

Longitude:

16.2613630

Latitude:

67.6836760

EU89-UTM Zone 33

(Coordinates IS confirmed)

X-coord:

553447 m.

Y-coord:

7508141 m.

Commodity

	Main Type:	Special metals (Nb,Ta,Be,Li,Sc,REE)	Sub Type:	REE-metals
			Element(s):	Zr Y Th U REE

Production

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

Importance

Public: (No data)

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: Caledonian Basement Province

Geotec.unit: Tysfjord Complex

Tectonic complex:

Igneous complex:

Group: Formation:

Information(s) in free text format

Free text

From his report from 2011 Müller (2011) writes the following: The target area north of Reinoksvatn was suggested in NGU report 2010.037 due to several distinct Th-radiation anomalies (Müller 2010). Because of the limited time in the field and the difficult accessibility of the area, the sampling was restricted to the Reinoksskardet at the western end of the Reinoksvatn anomaly (Fig. 26). Three representative, coarse-grained biotite granite gneiss samples (23091007, -08, -09) and one granite gneiss sample (23091005) from the contact with a granitic pegmatite were collected (Fig. 27). The latter had a gammaray intensity of 1400 cps. Samples 23091007 - 09 are characterized by elevated REO+Y2O3 of 0.101 to 0.134 wt.%, Zr of 374 to 509 ppm and Th of 32 to 41 ppm (Fig. 23). REE are enriched compared to average granite but with a pronounced negative Eu anomaly (Fig. 28). Sample 23091005 has low REO+Y2O3 of 0.025 wt.% and Zr of 37 ppm but is enriched in U (26 ppm) explaining the high gamma-radiation. The sample is strongly depleted in LREE probably due to the leaching of allanite and apatite in the granite gneiss near the pegmatite contact (Fig. 28). The most common accessory REE-bearing minerals are allanite (20-250 µm), apatite (20-60 µm) and zircon (20-120 µm) (Fig. 29). Very common allanite is responsible for the strong LREE enrichment. Secondary thorite and uraninite occur as alteration products of allanite It is eveident that this locality need additional sampling and exploration

Bibliography:

From NGU's Reference Archive:

Müller, Axel , 2011

Potential of rare earth element and Zr-, Be, U-, Th-, (W-) mineralisations in central and northern Nordland - Part 2

;Norges geologiske undersøkelse;RAPPORT;NGU-rapport; No.2011.021;56 pages

Abstract:

In this report results of the investigation of potential rare earth elements (REE) and Zr-, Be, U-, Th-, (W-) mineralisations in central and northern Nordland are presented. The investigated and sampled mineralisations were proposed in NGU report 2009.037 on the basis if existing reports and geochemical data sets. The investigation targets were evolved Proterozoic TIB-type granites (TIB = Trans-Scandinavian Igneous Belt) of the Tysfjord, Sommerset and Rishaugfjell basement windows, in particular, the Hatten- Tilthornet massif, Hundholmen, Kjerrfjellet, Hellemobotn, Reinoksskardet, upper Gjerdalen areas, the Sommerset basement Window, Rismålsvatn, and Memaurvatn. The general aim was to identify Zr-Ree mineralisations with >= 2wt.% REO (including Y2O3; REO - rare earth oxides) which are possibly enriched in Be, U and Th as well.

Fieldsamples

Sample No. Sample type Miscellanrous

23091005 Bedrock

Sampler :Axel M¿ller

Comment :coarse-grained biotite granite gneiss, mineralised, UTM east 553447, UTM north 7508142

No. of registrated element analyses = 1

No. of registrated oxide analyses = 1

23091007 Bedrock

Sampler :Axel M¿ller

Comment :coarse-grained biotite granite gneiss, non-mineralised, UTM east 553446, UTM north 7508686

No. of registrated element analyses = 1

No. of registrated oxide analyses = 1

23091008 Bedrock

Sampler :Axel M¿ller

Comment :coarse-grained biotite granite gneiss, non-mineralised, UTM east 553061, UTM north 7508248

No. of registrated element analyses = 1

No. of registrated oxide analyses = 1

23091009 Bedrock

Sampler :Axel M¿ller

Comment :coarse-grained biotite granite gneiss, non-mineralised, UTM east 553350, UTM north 7507550

No. of registrated element analyses = 1

No. of registrated oxide analyses = 1

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

Analyse Results

from

Deposit Area 1849 - 002 Reinokskardet

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*

23091005 Bedrock 2 83 7 1 -0 -.5 1

23091007 Bedrock 0 127 13 1 1 -.5 2

23091008 Bedrock 1 128 10 1 1 -.5 2

23091009 Bedrock 1 112 9 1 0 -.5 1

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

Sample No. Cd* Ba* Mo* Sn* Sb* Bi* Se* Ga* V*

23091005 -.1 140 0.60 6 -0 -0 -0.50 33.40 -8

23091007 -.1 303 1.40 4 -0 -0 -0.50 27.60 -8

23091008 -.1 308 4.80 4 -0 -0 -0.50 27.10 -8

23091009 -.1 239 0.90 5 -0 -0 -0.50 27.30 -8

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

Sample No. Th* U* W* Rb* Sr* Y* Zr* Nb* Cs*

23091005 28.80 25.90 1 485.6 29.2 75.8 37 52.10 4.00

23091007 40.60 10.20 1 305.0 54.4 90.6 499 46.70 3.30

23091008 39.20 8.90 1 277.9 67.1 96.3 509 48.20 2.70

23091009 31.80 8.60 1 301.6 49.4 83.0 374 40.10 3.00

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

Sample No. La* Ce* Pr* Nd* Sm* Eu* Gd* Tb* Dy*

23091005 8.70 32.90 4.87 25.80 9.70 0.52 10.03 1.97 12.68

23091007 210.90 461.20 46.65 160.10 24.54 1.06 18.41 2.92 16.38

23091008 229.10 501.20 50.17 173.80 25.84 1.02 18.93 3.02 16.71

23091009 177.80 370.00 37.10 123.60 19.36 0.77 13.69 2.29 13.11

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

Sample No. Ho* Er* Tm* Yb* Lu* Be* Hf* Hg* Tl*

23091005 2.76 8.90 1.38 9.00 1.25 8 2.70 -0 1

23091007 3.04 9.03 1.32 8.34 1.22 8 16.00 -0 1

23091008 3.29 9.37 1.37 8.83 1.26 6 15.40 -0 1

23091009 2.55 7.54 1.16 7.70 1.07 7 12.70 -0 1

Oxide analyses
( All values are in % )

Sample No. Sample Type SiO2 Al2O3 TiO2 Fe2O3 MnO MgO CaO

23091005 Bedrock 71.00 14.34 0.09 2.35 0.03 0.09 1.01

23091007 Bedrock 72.52 13.03 0.25 2.99 0.06 0.07 1.06

23091008 Bedrock 71.81 13.53 0.27 3.14 0.06 0.13 0.96

23091009 Bedrock 73.51 13.08 0.23 2.49 0.05 0.10 0.96

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

Sample No. Na2O K2O P2O5 Loss Sum

23091005 3.94 6.42 0.01 0.70 100.00

23091007 3.53 5.71 0.04 0.50 100.00

23091008 3.54 5.77 0.03 0.50 100.00

23091009 3.54 5.55 0.02 0.30 100.00

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

	Province:	Caledonian Basement Province
	Geotec.unit:	Tysfjord Complex
	Tectonic complex:
	Igneous complex:

Sample No.	Sample Type	Cu*	Zn*	Pb*	Co*	Ni*	Au#	As*
23091005	Bedrock	2	83	7	1	-0	-.5	1
23091007	Bedrock	0	127	13	1	1	-.5	2
23091008	Bedrock	1	128	10	1	1	-.5	2
23091009	Bedrock	1	112	9	1	0	-.5	1

Sample No.	Cd*	Ba*	Mo*	Sn*	Sb*	Bi*	Se*	Ga*	V*
23091005	-.1	140	0.60	6	-0	-0	-0.50	33.40	-8
23091007	-.1	303	1.40	4	-0	-0	-0.50	27.60	-8
23091008	-.1	308	4.80	4	-0	-0	-0.50	27.10	-8
23091009	-.1	239	0.90	5	-0	-0	-0.50	27.30	-8

Sample No.	Th*	U*	W*	Rb*	Sr*	Y*	Zr*	Nb*	Cs*
23091005	28.80	25.90	1	485.6	29.2	75.8	37	52.10	4.00
23091007	40.60	10.20	1	305.0	54.4	90.6	499	46.70	3.30
23091008	39.20	8.90	1	277.9	67.1	96.3	509	48.20	2.70
23091009	31.80	8.60	1	301.6	49.4	83.0	374	40.10	3.00

Sample No.	La*	Ce*	Pr*	Nd*	Sm*	Eu*	Gd*	Tb*	Dy*
23091005	8.70	32.90	4.87	25.80	9.70	0.52	10.03	1.97	12.68
23091007	210.90	461.20	46.65	160.10	24.54	1.06	18.41	2.92	16.38
23091008	229.10	501.20	50.17	173.80	25.84	1.02	18.93	3.02	16.71
23091009	177.80	370.00	37.10	123.60	19.36	0.77	13.69	2.29	13.11

Sample No.	Ho*	Er*	Tm*	Yb*	Lu*	Be*	Hf*	Hg*	Tl*
23091005	2.76	8.90	1.38	9.00	1.25	8	2.70	-0	1
23091007	3.04	9.03	1.32	8.34	1.22	8	16.00	-0	1
23091008	3.29	9.37	1.37	8.83	1.26	6	15.40	-0	1
23091009	2.55	7.54	1.16	7.70	1.07	7	12.70	-0	1

Sample No.	Sample Type	SiO2	Al2O3	TiO2	Fe2O3	MnO	MgO	CaO
23091005	Bedrock	71.00	14.34	0.09	2.35	0.03	0.09	1.01
23091007	Bedrock	72.52	13.03	0.25	2.99	0.06	0.07	1.06
23091008	Bedrock	71.81	13.53	0.27	3.14	0.06	0.13	0.96
23091009	Bedrock	73.51	13.08	0.23	2.49	0.05	0.10	0.96

Sample No.	Na2O	K2O	P2O5	Loss	Sum
23091005	3.94	6.42	0.01	0.70	100.00
23091007	3.53	5.71	0.04	0.50	100.00
23091008	3.54	5.77	0.03	0.50	100.00
23091009	3.54	5.55	0.02	0.30	100.00