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	MALMDATABASEN
	Forekomstområde 1849 - 006
	(Sist oppdatert 23.okt.2024)

Betydning

Offentlig:

(Ingen data)

Økonomisk:

Lite viktig , (Stadfestet 23.okt.2024 av Havard Gautneb)

Mineralisering

	Æra:		Periode:
	Datering:		Metode:
	Genese:		Form:
	Hovedtextur:		Min. fordeling:

Kornstørrelse:

Hovedomvandling:

	Strøk/Fall:		Retning:
			Feltstupning:

Stratigrafisk klassifikasjon av vertsbergart

Æra:

Periode:

	Provins:
	Geotek.enhet:
	Tektonisk complex:
	Intrusivt komplex:

Gruppe:

Formasjon:

Opplysning(er) i fritekstformat

Fri tekst

The following comments are given bu Müller (2011) Several airborne-measured Th-radiation anomalies along the SW-NE striking Kjerrfjellet mountain ridge were the reason for the region being chosen as a target area. Figure 42 shows the radiation anomalies (yellow shaded areas), the hiking trail and sampling points. The TIB granite gneiss exposed along the hiking trail at Svarthammaren had a very low gammaradiation intensity of 150 to 200 cps. Almost exactly where the anomaly was entered, the radiation intensity of the granite gneiss increased to 500 cps. Four samples of medium-grained granite gneiss were taken (Fig. 43). The samples have a highly variable REO+Y2O3 of 0.014to 0.118 wt.% despite relatively consistent gamma-radiation signals (Figs. 40, 42). Only sample 24091004 show a strong enrichment of LREE and HREE compared to the average granite composition (Fig. 44). Samples 24091001 and -03 are strongly depleted in LREE probably due to the leaching of apatite during secondary overprint. Zr concentrations are 357 to 631 ppm, Th 14 to 40 ppm and U 3 to 8 ppm. The dominant accessory REE-bearing minerals are zircon (20-60 µm) and apatite (20-300 µm) (Fig. 45, Table 1). In addition almandine-like minerals with 1 wt.% P and Cl and 60 to 100 µm in size are common. The minerals form euhedral and zoned inclusions in biotite (Fig. 45b). Summarizing, the Kjerrfjellet granite gneiss has no potential for economic REE mineralisation. The airbornemeasured Th-radiation anomalies along the Kjerrfellet mountain ridge are so distinct because of the low radiation signal of the surrounding granite gneiss.

Feltprøver

	Prøvenr.	Prøvetype	Diverse
	24091001	Fastfjell	Prøvetaker :Axel M¿ller Kommentar :medium-grained biotite granite gneiss, non-mineralised, UTM east 544145, UTM north 7555005 Antall registrerte elementanalyser = 1 Antall registrerte oksydanalyser = 1
	24091002	Fastfjell	Prøvetaker :Axel M¿ller Kommentar :medium-grained biotite granite gneiss, non-mineralised, UTM east 544242, UTM north 7555186 Antall registrerte elementanalyser = 1 Antall registrerte oksydanalyser = 1
	24091003	Fastfjell	Prøvetaker :Axel M¿ller Kommentar :medium-grained biotite granitic gneiss, non-mineralised, UTM east 544103, UTM north 7555094 Antall registrerte elementanalyser = 1 Antall registrerte oksydanalyser = 1
	24091004	Fastfjell	Prøvetaker :Axel M¿ller Kommentar :medium-grained biotite-rich granite gneiss, non-mineralised, UTM east 543823, UTM north 7554846 Antall registrerte elementanalyser = 1 Antall registrerte oksydanalyser = 1

NB! Alle analyseverdier er vist i slutten av utskriften.:

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Analyseresultater

fra

Forekomstområde 1849 - 006 Kjerrfjell

Elementanalyser

( *=parts pr. million, #=parts pr.billion, Negative verdier betyr under deteksjonsgrensen.)

Prøvenr.	Prøvetype	Cu*	Zn*	Pb*	Co*	Ni*	Au#	As*
24091001	Fastfjell	2	64	3	2	0	-.5	1
24091002	Fastfjell	1	77	6	3	0	-.5	2
24091003	Fastfjell	3	80	5	3	1	-.5	1
24091004	Fastfjell	-0	101	7	3	1	-.5	2

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Prøvenr.	Cd*	Ba*	Mo*	Sn*	Sb*	Bi*	Se*	Ga*	V*
24091001	-.1	518	1.70	3	-0	-0	-0.50	21.50	12
24091002	-.1	625	1.70	4	-0	-0	-0.50	22.50	14
24091003	-.1	576	0.30	4	-0	-0	-0.50	23.10	12
24091004	-.1	522	2.50	3	-0	-0	0.50	22.30	15

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Prøvenr.	Th*	U*	W*	Rb*	Sr*	Y*	Zr*	Nb*	Cs*
24091001	14.40	3.20	-1	184.5	102.1	34.2	357	26.40	1.10
24091002	39.90	7.00	-1	228.8	117.0	53.7	441	32.10	1.50
24091003	30.50	3.90	-1	228.9	106.7	43.0	626	36.30	1.60
24091004	17.60	7.70	-1	262.0	95.6	94.5	632	32.60	2.00

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Prøvenr.	La*	Ce*	Pr*	Nd*	Sm*	Eu*	Gd*	Tb*	Dy*
24091001	9.50	29.40	3.41	15.10	3.84	0.41	3.53	0.72	4.59
24091002	102.80	218.10	19.75	65.00	10.96	1.07	8.85	1.50	8.86
24091003	7.50	25.80	3.72	17.20	5.18	0.52	5.52	1.06	6.69
24091004	186.60	411.40	44.91	163.30	27.04	2.07	22.58	3.49	19.08

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Prøvenr.	Ho*	Er*	Tm*	Yb*	Lu*	Be*	Hf*	Hg*	Tl*
24091001	1.16	4.11	0.68	4.94	0.83	4	9.40	-0	1
24091002	1.82	5.28	0.82	5.51	0.83	5	11.70	-0	1
24091003	1.41	4.44	0.72	4.88	0.73	5	17.60	-0	1
24091004	3.68	10.35	1.44	8.39	1.17	7	15.60	-0	1

Oksydanalyser

(Alle verdier er i %)

Prøvenr.	Prøvetype	SiO2	Al2O3	TiO2	Fe2O3	MnO	MgO	CaO
24091001	Fastfjell	71.01	14.09	0.44	3.58	0.08	0.50	1.08
24091002	Fastfjell	69.44	14.09	0.51	4.09	0.08	0.50	1.35
24091003	Fastfjell	69.08	14.43	0.53	4.13	0.07	0.51	1.03
24091004	Fastfjell	69.58	13.19	0.55	5.35	0.08	1.11	0.71

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Prøvenr.	Na2O	K2O	P2O5	Loss	Sum
24091001	3.96	4.76	0.08	0.30	100.00
24091002	3.70	5.56	0.09	0.40	100.00
24091003	3.84	5.58	0.12	0.50	100.00
24091004	3.01	5.53	0.13	0.50	100.00

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Faktaarket ble generert 22.11.2024

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