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	THE ORE DATABASE
	Occurence 5026 - 036 Bukkhammaren
	(Object Id: 4437) (Last updated: 13.08.2019)

Operations

	From - To	Activity	Comments
	1950 - 1950	Geophysics	Company/Institution :Geofysisk Malmleting
	1974 - 1974	Geochemistry	Company/Institution :A/S Sydvaranger
	1975 - 1975	Core drilling	Company/Institution :A/S Sydvaranger
	1997 - 1997	Sampling	Company/Institution :NGU

Mineralization

	Era:	Paleozoic	Period:	Ordovician
	Genesis:	Volcex	Form:	Layer
	Main texture:	Structureless	Min. distribution:	Semi-massive (20-50 % ore minerals)

Main grain size:

Medium grained (1-3 mm)

Main alteration:

No country rock alteration

	Strike/Dip:	190 / 25	Direction:
			Plunge:

Stratigraphic classification of host rock

Era:

Paleozoic

Period:

Ordovician

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

Group:

Fundsjø

Formation:

Hersjø

Mineralogy

	Relationship	Mineral	Amount
	Gangue mineral	Carbonate	Major mineral (>10%)
	Gangue mineral	Quartz	Major mineral (>10%)
	Gangue mineral	Amphibole	Subordinate mineral (1-10%)
	Ore mineral	Pyrite	Major mineral (>10%)
	Ore mineral	Sphalerite	Major mineral (>10%)
	Ore mineral	Chalcopyrite	Subordinate mineral (1-10%)
	Ore mineral	Galena	Subordinate mineral (1-10%)

Lithology:

	Relationship	Rock	Origin
	Wall rock	Limestone	Sedimentary Original rock :Limestone
			Metamorphic facies :Greenschist
	Wall rock	Porphyritic amphibolite	Intrusive Original rock :Dolerite
			Metamorphic facies :Greenschist
	Wall rock	Quartzite	Sedimentary Original rock :Quartz sandstone
			Metamorphic facies :Greenschist

Structures

	Location:	Type:	Orientation(360 gr.):	Relation to min.:
	Wall rock	Foliation	Strike/Dip :185 / 30	Post-mineralisation ;...Effect :Modifies
	Wall rock	Mineral banding	Strike/Dip :195 / 25	Syn-mineralisation ;...Effect :Controls

Photo(s) from the Deposit area:

Photo no. 1 showing Bukkhammaren, synken"

Fieldsamples

	Sample No.	Sample type	Miscellanrous
	ST0235.03	Dump	Sampler: Sandstad, J.S./...Stored: Løkken/...Size(kg): 2 Comment: py-cpy+sl min., middelskornet, semi-massive py bånd, cpy agg./strenger, sl diss. i finkornet kvarts-feltspat bergart. No. of registrated element analyses = 1
	ST0235.04	Dump	Sampler: Sandstad, J.S./...Stored: Løkken/...Size(kg): 2 Comment: py-sl-gn+cpy min., fin-middelskornete, diss. sulfider i fink. kvarts-kalkspat bergart. No. of registrated element analyses = 1
	ST0235.05	Dump	Sampler: Sandstad, J.S./...Stored: Løkken/...Size(kg): 2 Comment: sl-py malm, semi-massiv, middelskornet, i kvarts-kalkspat rik matriks. No. of registrated element analyses = 1
	ST0235.06	Dump	Sampler: Sandstad, J.S./...Stored: Løkken/...Size(kg): 2 Comment: py-cpy-sl-gn min., finkornet, diss. og aggregater i urein, kalkspatførende, kvarts-feltspat bergart. No. of registrated element analyses = 1

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

Name of Locality: Bukkhammaren, skjerp 1

(Object Id: 10027 36,01,00)

Location

County:

Trøndelag

Municipality:

Holtålen (5026)

Map 1:50000:

Ålen (1720-4)

Map 1:250000:

Røros

Coordinate system:

EU89-UTM Zone 32

East:

616410 m.

North:

6986049 m.

Longitude:

11.2974260

Latitude:

62.9854700

Show on map

Resource

	Resource Type:	Base metals (Cu,Zn,Pb,Fe sulphides, As,Sb,Bi,Sn)	Resource Subtype:	Zinc
			Element(s):	Cu Zn

Resources and production

	Activity:	Pitting	Reserves:
	Operating method:		Historical production:

Fieldsamples

	Sample No.	Sample type	Miscellanrous
	ST0235.01	Dump	Sampler: Sandstad, J.S./...Stored: Løkken/...Size(kg): 2 Comment: cpy-sl+py min., diss. i urein, diopsid/tremolitt? førende kalksteinsmarmor. No. of registrated element analyses = 1

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

Name of Locality: Bukkhammaren, skjerp 2

(Object Id: 10028 36,02,00)

Location

County:

Trøndelag

Municipality:

Holtålen (5026)

Map 1:50000:

Ålen (1720-4)

Map 1:250000:

Røros

Coordinate system:

EU89-UTM Zone 32

East:

616395 m.

North:

6984756 m.

Longitude:

11.2962210

Latitude:

62.9738780

Show on map

Resource

	Resource Type:	Base metals (Cu,Zn,Pb,Fe sulphides, As,Sb,Bi,Sn)	Resource Subtype:	Zinc
			Element(s):	Cu Zn

Resources and production

	Activity:	Pitting	Reserves:
	Operating method:		Historical production:

Fieldsamples

	Sample No.	Sample type	Miscellanrous
	ST0235.02	Dump	Sampler: Sandstad, J.S./...Stored: Løkken/...Size(kg): 2 Comment: py min., diss./striper i kvartsittisk bergart (keratofyr?). No. of registrated element analyses = 1

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

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Analyse Results

from

Deposit Area 5026 - 036 Bukkhammaren

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#
ST0235.01	Dump	19826	12027	6776	6	6	69.4	740.0
ST0235.02	Dump	54	42	17	43	21	.5	14.0
ST0235.03	Dump	16310	4818	185	19	137	49.8	259.0
ST0235.04	Dump	4078	98742	16024	2	19	45.7	687.0
ST0235.05	Dump	401	99999	706	5	9	-.3	174.0
ST0235.06	Dump	20822	18674	13249	-1	15	147.7	713.0

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

Sample No.	Pt#	Pd#	As*	Cd*	Ba*	Mo*	Sb*	Bi*	S%
ST0235.01	1.0	2.0	33	41.4	-1	10.00	28	8	2.05
ST0235.02	2.0	3.0	19	.3	8	4.00	3	-3	2.94
ST0235.03	11.0	6.0	96	19.6	23	16.00	-3	5	26.49
ST0235.04	6.0	4.0	191	389.7	1	23.00	21	7	21.63
ST0235.05	6.0	5.0	109	1018.8	1	36.00	-3	6	25.70
ST0235.06	2.0	4.0	99	69.0	1	15.00	21	7	6.18

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Sample No.	V*	Cr*	Mn*	Fe%	Th*	U*	W*	Sr*	La*
ST0235.01	6	7	356	3.08	-2.00	-8.00	-2	23.0	2.00
ST0235.02	51	55	97	3.37	-2.00	-8.00	-2	1.0	1.00
ST0235.03	217	46	169	31.01	5.00	-8.00	-2	6.0	12.00
ST0235.04	5	58	367	16.90	-2.00	-8.00	68	13.0	1.00
ST0235.05	3	-1	903	13.30	-2.00	-8.00	-2	16.0	1.00
ST0235.06	19	10	288	9.94	-2.00	-8.00	-2	18.0	4.00

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

Sample No.	B*
ST0235.01	-3
ST0235.02	-3
ST0235.03	-3
ST0235.04	-3
ST0235.05	-3
ST0235.06	-3

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The fact sheet was created on 31.10.2025

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

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