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	THE ORE DATABASE
	Occurence 5026 - 025 Godthåp I
	(Object Id: 4418) (Last updated: 07.11.2023)

Mineralization

	Era:	Paleozoic	Period:	Ordovician
	Genesis:	Volcex	Form:
	Main texture:	Structureless	Min. distribution:	Massive (>50 % ore minerals)

Main grain size:

Fine grained (< 1 mm)

Main alteration:

	Strike/Dip:		Direction:
			Plunge:

Stratigraphic classification of host rock

Era:

Paleozoic

Period:

Ordovician

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

Group:

Aursund

Formation:

Røsjø

Mineralogy

	Relationship	Mineral	Amount
	Gangue mineral	Amphibole	Major mineral (>10%)
	Gangue mineral	Biotite	Major mineral (>10%)
	Gangue mineral	Quartz	Major mineral (>10%)
	Gangue mineral	Chlorite	Subordinate mineral (1-10%)
	Ore mineral	Chalcopyrite	Major mineral (>10%)
	Ore mineral	Pyrrhotite	Major mineral (>10%)
	Ore mineral	Pyrite	Major mineral (>10%)

Lithology:

	Relationship	Rock	Origin
	Wall rock	sandstone	Sedimentary Original rock :Greywacke
			Metamorphic facies :Amphibolite

Structures

	Location:	Type:	Orientation(360 gr.):	Relation to min.:
	Wall rock	Foliation	Strike/Dip :254 / 35	Post-mineralisation ;...Effect :None
	Wall rock	Schistosity	Strike/Dip :286 / 35	Post-mineralisation ;...Effect :Modifies

Information(s) in free text format

Free text

Sulfidmineraliseringene i Godthåp er antatt å være en fortsettelse av malmdraget i Mennagruvene og Guldals gruve lengre vest (Aasgaard 1927). En vannfyllt skråsynk med vegger 4 x 4 m er drevet i finkornet, grågrønn sandstein i et område som er svært overdekket. Malmen er ikke synlig i synken, men finnes på den 50 m3 store tippen. Den er noe ulike malmene lengre vest da den er rikere på pyritt. Massiv pyritt med mindre mengder magnetkis og kobberkis med enkelte kvartsøyne dels med kloritt og amfibol omkring dominerer. Magnetkis dominerer i enkelte blokker og fører gjerne noe mer kobberkis.

Photo(s) from the Deposit area:

Photo no. 1 showing Godthåp I, skråsynk"

Bibliography:

From NGU's Reference Archive:

Aasgaard, Gunnar , 1927

	Gruber og skjerp i kisdraget Øvre Guldal-Tydal.

;Norges geologiske undersøkelse;TIDSSKRIFTARTIKKEL;NGU; No.129;1-196 pages

Abstract:

The occurences described in this paper form a connection between th mining districts around Røros to the south and those around Meråker to the north. The occurences lie in mountain regions partly above the forest line. The list on page 12 contains the names of all known occurrences of whatever size within the district considered. Pl. I is a geological outline map of the district, compiled from maps in the Norwegian Geological Survey. In a geological summary on pages 18-27 it is shown that no pyrite occurrences of economic importance so far have been found in an eastern zone along the Swedish boundary where the rocks consist of hard schist with sparagmites, and igneous rocks. Neither have such occurrences been found in a zone of "Stuedalsskifer" and an other zone of "Gulaskifer" towards west, both indicated on the map. The occurrences of pyrite are chiefly found in connection with fine grained, light green or gravish, partly feldspar bearing schist and in connection with green schists, mostly fine grained hornblende schists. All these zones of schist gnereally strike north and dip west. The pyrite bearing schist lie on both sildes of a large zone of igneous rocks extending from Kjølifjell in the south over Hyllingen and Melshogna to Fangen in the Meråker district in the north.

Rui, Ingolf J.; Bakke, Inge , 1975

	Stratabound sulphide mineralization in the Kjøli area, Røros district, Norwegian Caledonides.

;Norsk geologisk forening;TIDSSKRIFTARTIKKEL;Norsk geologisk tidsskrift; No.55 (1);51-75 pages

Abstract:

Two important sulphide ore-bearing formations have been recognized in the Cambro-Silurian succession of the Røros district. One is composed of submarine greenstones and quartz keratophyres (the Hersjø Formation). The other one, which is studied here, consists of a heterogeneous series of banded meta-argillites and meta-greywackes with subordinate thin green interlayers of probable volcanogenic origin (the Røsjø Formation). These two formations are embedded in a thick succession of various clastic sedimentary rocks which have undergone metamorphism and folding during the Silurian orogeny. The numerous sulphide deposits which occur in the Kjøli area are largely confined to the Røsjø Formation. The sulphide bodies are chiefly composed of massive pyrite and/or pyrrhotite showing variable chalcopyrite and sphalerite grades. The massive sulphides often occur as thin, extensive sheets, locally as irregular, small lenses which rarely exceed one metre in thickness. It is probable that the sulphides have been precipitated primarily on the sea-floor, but there is no clear evidence of a volcanogenic origin. Local discordant relationships between the massive sulphides and the wall rocks are ascribed to metamorphic mobilization of the sulphides. The thicker sulphide lenses may themselves represent mobilized portions of thinner sulphide-rich units.

Fieldsamples

	Sample No.	Sample type	Miscellanrous
	Godthåp-1	Dump	Sampler: T. Bjerkgård No. of registrated element analyses = 1
	Godthåp-2	Dump	Sampler: T. Bjerkgård No. of registrated element analyses = 1
	ST0216.01	Dump	Sampler: Sandstad, J.S./...Stored: Løkken/...Size(kg): 2 Comment: py+po+cpy malm, finkornet, massiv, få kvartsøyne. No. of registrated element analyses = 1
	ST0216.02	Dump	Sampler: Sandstad, J.S./...Stored: Løkken/...Size(kg): 2 Comment: py-po+cpy malm, po matriks, få kvartsøyne. No. of registrated element analyses = 1

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

Name of Locality: Godthåp II

(Object Id: 10017 25,01,00)

Location

County:

Trøndelag

Municipality:

Holtålen (5026)

Map 1:50000:

Ålen (1720-4)

Map 1:250000:

Røros

Coordinate system:

EU89-UTM Zone 32

East:

631519 m.

North:

6970940 m.

Longitude:

11.5833240

Latitude:

62.8448340

Show on map

Resource

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

Resources and production

	Activity:	Pitting	Reserves:
	Operating method:		Historical production:

Mineralogy

	Relationship	Mineral	Amount
	Gangue mineral	Chlorite	Major mineral (>10%)
	Gangue mineral	Quartz	Major mineral (>10%)
	Gangue mineral	Biotite	Major mineral (>10%)
	Ore mineral	Pyrite	Major mineral (>10%)
	Ore mineral	Pyrrhotite	Major mineral (>10%)
	Ore mineral	Sphalerite	Major mineral (>10%)
	Ore mineral	Chalcopyrite	Subordinate mineral (1-10%)

Lithology:

	Relationship	Rock	Origin
	Wall rock	Biotite-chlorite schist	Sedimentary Original rock :Greywacke
			Metamorphic facies :Amphibolite

Information(s) in free text format

Free text

Lokaliteten består både av en 8 x 2 m bred vannfyllt grøft og rester etter en taubanestasjon som ble brukt til transport av malmen fra Kjøli gruve lengre øst. En liten, svakt foldet sulfidlinse kan sees i grøfta. Malmen på tippen er noe ulik den som finnes i Godthåp I og består her av semi-massiv pyritt, magnetkis og mindremengder kobberkis i en kloritt-rik skifer. Den kan også komme fra Kjøli gruve i forbindelse med taubanetransporten.

Photo(s) from the Deposit area:

Photo no. 1 showing Godt Håp II, skjerpet"

Fieldsamples

	Sample No.	Sample type	Miscellanrous
	ST0216.03	Dump	Sampler: Sandstad, J.S./...Stored: Løkken/...Size(kg): 2 Comment: py-po+sl+cpy, semi-massiv/diss., i kloritt-biotitt skifer. No. of registrated element analyses = 1

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

---

Analyse Results

from

Deposit Area 5026 - 025 Godthåp I

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#
Godthåp-1	Dump	21800	1625	13	251	60	7.5	458.0
Godthåp-2	Dump	20700	664	10	576	90	7.9	537.0
ST0216.01	Dump	9884	434	11	502	68	4.3	1064.0
ST0216.02	Dump	15343	529	3	633	66	5.4	1029.0
ST0216.03	Dump	6937	11163	11	336	58	1.9	178.0

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

Sample No.	Pt#	Pd#	As*	Cd*	Ba*	Mo*	Sn*	Sb*	Bi*
Godthåp-1	2.5	1.0	16	5.0	10	3.47	14	0	35
Godthåp-2	2.5	2.0	82	2.3	10	5.37	6	0	58
ST0216.01	2.0	2.0	49	.6	2	-1.00		-3	61
ST0216.02	5.0	2.0	20	1.4	9	1.00		13	34
ST0216.03	3.0	2.0	22	25.6	21	1.00		-3	8

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

Sample No.	Se*	Ga*	Ge*	In*	S%	V*	Cr*	Mn*	Fe%
Godthåp-1	73.00	23.20	0.36	15.30	10.00	35	54	373	26.60
Godthåp-2	94.00	3.35	0.51	4.60	10.00	6	9	47	40.80
ST0216.01					41.05	5	6	40	28.59
ST0216.02					31.22	13	14	56	32.51
ST0216.03					20.54	85	84	494	26.18

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

Sample No.	Th*	U*	W*	Rb*	Sr*	Y*	Zr*	Nb*	Ta*
Godthåp-1	5.18	1.40	0	8.5	26.0	9.9	31	5.80	0.47
Godthåp-2	0.58	0.20	0	2.9	4.1	1.0	4	0.60	0.05
ST0216.01	4.00	-8.00	-2		1.0
ST0216.02	4.00	-8.00	-2		1.0
ST0216.03	5.00	-8.00	-2		3.0

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

Sample No.	Cs*	La*	Ce*	B*	Li*	Be*	Sc*	Ti*	Te*
Godthåp-1	0.54	12.80	30.40		2	0	10.00	1565	7.58
Godthåp-2	0.15	1.30	2.69		1	0	1.20	138	9.78
ST0216.01		-1.00		-3
ST0216.02		3.00		3
ST0216.03		8.00		-3

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

Sample No.	Hf*	Re*	Tl*
Godthåp-1	0.80	0	0
Godthåp-2	0.10	0	0
ST0216.01
ST0216.02
ST0216.03

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The fact sheet was created on 19.04.2024

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

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