Faktarka for Forekomstområde 1636

					English version
	MALMDATABASEN
	Forekomstområde 1636 - 023
	(Sist oppdatert 13.apr.2020)

Navn på deposit area : Holum

(Objekt Id : 1636,023,00,00)

Lokalisering

Fylke :

Sør-Trøndelag (16)

Kommune :

Meldal (1636)

Kart 1:50000:

Løkken (1521-3)

Kart 1:250000:

Trondheim

Markeringspunkt:

Lengdegrad:

9.6059080

Breddegrad:

63.0450500

EU89-UTM Zone 32

(Coordinates IS confirmed)

X-koord:

530643 m.

Y-koord:

6990752 m.

Materialtype

	Hovedtype:	Basemetaller (Cu,Zn,Pb,Fe sulfider,As,Sb,Bi,Sn)	Subtype:	Sulfider
			Element(s):	Kis Cu

Production

Activity:	Røsking	Reserves:
Prod. method:		Production:
Prod. status:		Volume of dump:	50 m3

Betydning

Offentlig: Not Assessed (reg. 18.02.2015)

Economical: Lite viktig , (Confirmed 03.des.2019 by Jan Sverre Sandstad)

Operations

From - To Activity Comments

1982 - 1982 Geophysics Company/Institution :Orkla A/S

1982 - 1982 Detail mapping Company/Institution :Orkla A/S, T. Grenne

Mineralization

Era: Paleozoic Period: Ordovician

Dating: Method:

Genesis: Vulkeks Form: Lag

Main texture: Massiv Min. distribution: Massiv

Main grain size: Finkornet (<1 mm) Main alteration:

Strike/Dip: 200 / 65 Direction:

Plunge:

Stratigraphic classification of host rock

Era: Paleozoic Period: Ordovician

Province: Caledonides

Geotec.unit: Trondheim Nappe Complex

Tectonic complex: Støren Nappe

Igneous complex:

Group: Støren Group Formation:

Mineralogy

Relationship Mineral Amount

Gangue mineral Quartz Major mineral (>10%)

Gangue mineral Mica Subordinate mineral (1-10%)

Gangue mineral Chlorite Subordinate mineral (1-10%)

Ore mineral Pyrite Major mineral (>10%)

Lithology:

Relationship Rock Origin

Wall rock Grønnstein Extrusive
Original rock :Basalt

Metamorphic facies :Greenschist

Opplysning(er) i fritekstformat

Beskrivelse

Fra Grenne (1983): En vasskishorisont som kan følges 350 m langs strøket i elvedalen til Mosbrunnskjerva. I SV er det en 0.5-1 m mektig massiv og kompakt vasskis med stort sett svært finkornet pyritt. Mot NE blir magnetkis dominerende med underordnet pyritt og spor av kobberkis. Her er vasskisenheten bare 20-30 cm mektig og har dels en diffus bånding.

Bibliography:

References not to be found in NGU's Reference Archive.:

Grenne, T., 1983: Geological investigations in the Holum mine area. Report LV17 Orkla A/S (BV 1813)

Fieldsamples

Sample No. Sample type Miscellanrous

JS-M1948 Dump

Sampler :J.S. Sandstad/...Stored :Løkken/...Size(kg) :2

Kommentar :Massiv pyritt, svært finkornet 'vasskis'

No. of registrated element analyses = 1

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

Navn på sample point : Holum

(Objekt Id : 1636,023,00,01)

Lokalisering

Fylke : Sør-Trøndelag (16) Kommune : Meldal (1636)

Kart 1:50000: Løkken (1521-3) Kart 1:250000: Trondheim

Markeringspunkt: Lengdegrad: 9.6062990 Breddegrad: 63.0449590

EU89-UTM Zone 32 (Coordinates IS confirmed)

X-koord: 530663 m. Y-koord: 6990743 m.

Materialtype

Hovedtype: Basemetaller (Cu,Zn,Pb,Fe sulfider,As,Sb,Bi,Sn) Subtype: Sulfider

Element(s): Kis Cu

Opplysning(er) i fritekstformat

Fri tekst

En 20-40 cm mektig massiv og kompakt vasskis i en mindre blotning over stollingangen er prøvetatt.

Fieldsamples

Sample No. Sample type Miscellanrous

JS-M1947 Bedrock

Sampler :J.S. Sandstad/...Stored :Løkken/...Size(kg) :2

Kommentar :Massiv pyritt, svært finkornet 'vasskis'

No. of registrated element analyses = 1

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

Analyse Results

from

Forekomstområde 1636 - 023 Holum

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#

JS-M1947 Bedrock 262 97 13 24 43 1.3 165.0

JS-M1948 Dump 281 444 15 24 45 .5 26.0

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

Sample No. Pt# Pd# As* Cd* Ba* Mo* Sn* Sb* Bi*

JS-M1947 7.0 2.0 416 .6 20 63.50 0 43 0

JS-M1948 -5.0 -1.0 351 1.3 30 32.70 1 13 0

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

Sample No. Se* Ga* Ge* In* S% V* Cr* Mn* Fe%

JS-M1947 3.00 4.46 0.48 0.06 10.00 37 14 225 38.60

JS-M1948 4.00 8.38 0.47 0.09 10.00 109 21 312 37.20

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

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

JS-M1947 0.54 0.30 -0 2.3 35.8 3.8 7 0.60 0.06

JS-M1948 1.06 1.30 -0 1.2 63.6 11.5 15 1.10 0.10

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

Sample No. Cs* La* Ce* Li* Be* Na* Mg* Al* P*

JS-M1947 0.15 1.50 3.79 2 -0 0 1 1 80

JS-M1948 0.13 5.00 10.80 3 0 0 1 2 190

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

Sample No. K * Ca* Sc* Ti* Te* Hf* Re* Tl*

JS-M1947 0 1 3.10 0 0.33 0.20 4 2

JS-M1948 0 1 7.80 0 0.13 0.40 12 2

From - To	Activity	Comments
1982 - 1982	Geophysics	Company/Institution :Orkla A/S
1982 - 1982	Detail mapping	Company/Institution :Orkla A/S, T. Grenne

Era:	Paleozoic	Period:	Ordovician
Dating:		Method:
Genesis:	Vulkeks	Form:	Lag
Main texture:	Massiv	Min. distribution:	Massiv

	Province:	Caledonides
	Geotec.unit:	Trondheim Nappe Complex
	Tectonic complex:	Støren Nappe
	Igneous complex:

Relationship	Mineral	Amount
Gangue mineral	Quartz	Major mineral (>10%)
Gangue mineral	Mica	Subordinate mineral (1-10%)
Gangue mineral	Chlorite	Subordinate mineral (1-10%)
Ore mineral	Pyrite	Major mineral (>10%)

Relationship	Rock	Origin
Wall rock	Grønnstein	Extrusive Original rock :Basalt
		Metamorphic facies :Greenschist

Sample No.	Sample Type	Cu*	Zn*	Pb*	Co*	Ni*	Ag*	Au#
JS-M1947	Bedrock	262	97	13	24	43	1.3	165.0
JS-M1948	Dump	281	444	15	24	45	.5	26.0

Sample No.	Pt#	Pd#	As*	Cd*	Ba*	Mo*	Sn*	Sb*	Bi*
JS-M1947	7.0	2.0	416	.6	20	63.50	0	43	0
JS-M1948	-5.0	-1.0	351	1.3	30	32.70	1	13	0

Sample No.	Se*	Ga*	Ge*	In*	S%	V*	Cr*	Mn*	Fe%
JS-M1947	3.00	4.46	0.48	0.06	10.00	37	14	225	38.60
JS-M1948	4.00	8.38	0.47	0.09	10.00	109	21	312	37.20

Sample No.	Th*	U*	W*	Rb*	Sr*	Y*	Zr*	Nb*	Ta*
JS-M1947	0.54	0.30	-0	2.3	35.8	3.8	7	0.60	0.06
JS-M1948	1.06	1.30	-0	1.2	63.6	11.5	15	1.10	0.10

Sample No.	Cs*	La*	Ce*	Li*	Be*	Na*	Mg*	Al*	P*
JS-M1947	0.15	1.50	3.79	2	-0	0	1	1	80
JS-M1948	0.13	5.00	10.80	3	0	0	1	2	190

Sample No.	K *	Ca*	Sc*	Ti*	Te*	Hf*	Re*	Tl*
JS-M1947	0	1	3.10	0	0.33	0.20	4	2
JS-M1948	0	1	7.80	0	0.13	0.40	12	2