Fact Sheet for <b>Occurence 5056

					Norsk versjon
	THE ORE DATABASE
	Occurence 5056 - 005 Monsøya
	(Object Id: 4500) (Last updated: 01.07.2020)

Location

County:

Trøndelag

Municipality:

Hitra (5056)

Map 1:50000:

Sør-Frøya (1422-3)

Map 1:250000:

Kristiansund

Coordinate system:

EU89-UTM Zone 32

East:

472933 m.

North:

7050609 m.

Longitude:

8.4547560

Latitude:

63.5825120

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Resource

	Resource Type:	Ferrous metals(Fe, Mn, Ti)	Resource Subtype:	Iron
			Element(s):	Fe

Importance

Raw material meaning:

Little Importance (reg. 18.02.2015)

Resources and production

	Activity:	Test mining	Reserves:	3 thousand tons
	Operating method:	Underground mining	Historical production:

Operations

From - To Activity Comments

1801 - 1801 Test mining

Mineralization

Era: Paleozoic Period: Ordovician

Genesis: Volcex Form: Lens

Main texture: Banded Min. distribution: Semi-massive (20-50 % ore minerals)

Main grain size: Fine grained (< 1 mm) Main alteration: Epidotisation

Strike/Dip: Direction:

Plunge:

Stratigraphic classification of host rock

Era: Paleozoic Period: Ordovician

Province:

Geotec.unit:

Tectonic complex:

Igneous complex:

Group: Formation:

Mineralogy

Relationship Mineral Amount

Gangue mineral Epidote Major mineral (>10%)

Gangue mineral Plagioclase Major mineral (>10%)

Gangue mineral Pyroxene Subordinate mineral (1-10%)

Gangue mineral Amphibole Subordinate mineral (1-10%)

Gangue mineral Garnet Subordinate mineral (1-10%)

Ore mineral Magnetite Major mineral (>10%)

Ore mineral Pyrite Subordinate mineral (1-10%)

Lithology:

Relationship Rock Origin

Wall rock biotittgneis Sedimentary

Metamorphic facies :Amphibolite

Wall rock granittisk gneis Extrusive

Metamorphic facies :Amphibolite

Wall rock hornblendegneis Extrusive

Metamorphic facies :Amphibolite

Wall rock granitt Intrusive
Original rock :Granite

Structures

Location: Type: Orientation(360 gr.): Relation to min.:

Host rock Foliation Strike/Dip :232 / 40 Post-mineralisation ;...Effect :None

Information(s) in free text format

Free text

Den mineraliserte sonen strekker seg tvers over øya i retning øst-vest. Ujevn mineralisering som opptrer i linseform med umineraliserte soner imellom. Noe sprengningsarbeider er foretatt på tre steder. Mest arbeid sentralt på øya, og dette skjerpet er registrert som hovedforekomsten. Monsøya: 30 m lang opptil 4 m høy skjæring på tvers av strøket. 2 m bred malmsone med semi-massiv mt-malm (få dm bred) i epidotrik matriks og mt+py i epidot-granat bergart. Hornblende og biotitt rik gneis er sidebergarten. Skjæres av granittiske ganger og kvartsårer. Monsøya øst (45 m opp fra sjøen): opptil 0,8 m mektig rel. ren mt-malm med mt-ep+py rike randsoner. Biotitt- og hornblendegneis i ligg og heng. Noe foliert dioritt over hornblendegneissen. Monsøya vest: 2 mindre parallelle dagstrosser parallelt malmsonene som følges i 15-20 m's lengde. Flere soner (noen dm-skala) med magnetitt i veksling med epidot og plagioklas rikere bånd. Amfibol-biotitt rik og granittisk gneis mellom sonene. Skjæres av pegmatittiske og granittiske ganger.

Bibliography:

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

Kulturminner på Hitra. Hitra kulturutvalg. Oktober 1975.

Fieldsamples

Sample No. Sample type Miscellanrous

ST0299.05 Bedrock

Sampler: Sandstad, J.S./...Stored: Løkken

Comment: Epidot-granat skarn, middels-grovkornet, med magnetitt og grovkornet pyritt

No. of registrated element analyses = 1

ST0299.06 Bedrock

Sampler: Sandstad, J.S./...Stored: Løkken

Comment: Kvarts, glassklar, med pyritt, i grønn epidot-pyroksen-amfibol rik skarn

No. of registrated element analyses = 1

ST0299.07 Bedrock

Sampler: Sandstad, J.S./...Stored: Løkken

Comment: Magnetitt-malm, finkornet, i epidot rik matriks mt-malm, fink, i epidot rik matriks

No. of registrated element analyses = 1

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

Name of Locality: Monsøya øst

(Object Id: 6672 5,01,00)

Location

County: Trøndelag Municipality: Hitra (5056)

Map 1:50000: Sør-Frøya (1422-3) Map 1:250000: Kristiansund

Coordinate system: EU89-UTM Zone 32

East: 473001 m. North: 7050627 m.

Longitude: 8.4561030 Latitude: 63.5826870

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Resource

Resource Type: Ferrous metals(Fe, Mn, Ti) Resource Subtype: Iron

Element(s): Fe

Resources and production

Activity: Pitting Reserves:

Operating method: Historical production:

Fieldsamples

Sample No. Sample type Miscellanrous

ST0299.01 Bedrock

Sampler: Sandstad, J.S./...Stored: Løkken

Comment: Magnetitt-malm, finkornet, dels middelskornet, massiv

No. of registrated element analyses = 1

ST0299.02 Bedrock

Sampler: Sandstad, J.S./...Stored: Løkken

Comment: Epidot-granat-feltspat skarn, grovkornet, svak pyritt disseminasjon (heng)

No. of registrated element analyses = 1

ST0299.03 Bedrock

Sampler: Sandstad, J.S./...Stored: Løkken

Comment: Granat-epidot-amfibol skarn med grovkornet pyritt (ligg)

No. of registrated element analyses = 1

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

Name of Locality: Monsøya vest

(Object Id: 6673 5,02,00)

Location

County: Trøndelag Municipality: Hitra (5056)

Map 1:50000: Sør-Frøya (1422-3) Map 1:250000: Kristiansund

Coordinate system: EU89-UTM Zone 32

East: 472715 m. North: 7050548 m.

Longitude: 8.4503750 Latitude: 63.5819480

Show on map

Resource

Resource Type: Ferrous metals(Fe, Mn, Ti) Resource Subtype: Iron

Element(s): Fe

Resources and production

Activity: Pitting Reserves:

Operating method: Historical production:

Fieldsamples

Sample No. Sample type Miscellanrous

ST0299.04 Bedrock

Sampler: Sandstad, J.S./...Stored: Løkken

Comment: Magnetitt-epidot båndet bergart, fin-middelskornet, få sulfider

No. of registrated element analyses = 1

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

Analyse Results

from

Deposit Area 5056 - 005 Monsøya

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#

ST0299.01 Bedrock 36 62 20 55 15 -.2 -1.0

ST0299.02 Bedrock 158 42 9 17 18 -.2 -1.0

ST0299.03 Bedrock 243 58 6 90 74 .3 3.0

ST0299.04 Bedrock 17 69 19 55 10 -.2 -1.0

ST0299.05 Bedrock 553 86 5 36 29 -.2 1.0

ST0299.06 Bedrock 1537 31 4 46 48 .3 4.0

ST0299.07 Bedrock 33 115 23 44 8 -.2 -1.0

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

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

ST0299.01 -5.0 -1.0 73 -1.0 -2 -1.00 -20 8 18

ST0299.02 -5.0 -1.0 -5 -1.0 9 3.00 -20 -5 -5

ST0299.03 5.0 18.0 36 -1.0 6 2.00 -20 -5 7

ST0299.04 -5.0 -1.0 75 -1.0 7 -1.00 -20 -5 17

ST0299.05 -5.0 4.0 20 -1.0 -2 3.00 -20 -5 8

ST0299.06 -5.0 4.0 -5 -1.0 5 4.00 -20 -5 -5

ST0299.07 -5.0 -1.0 77 -1.0 -2 -1.00 -20 8 19

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

Sample No. V* Cr* Mn* Fe% W* Sr* La* Na* Mg*

ST0299.01 107 79 700 10.00 -20 9.0 46.00 0 0

ST0299.02 2 158 208 3.18 -20 93.0 3.00 0 0

ST0299.03 57 209 587 10.00 -20 58.0 19.00 0 0

ST0299.04 139 69 356 10.00 -20 32.0 44.00 0 0

ST0299.05 186 202 716 10.00 -20 62.0 17.00 -0 0

ST0299.06 23 243 660 6.14 -20 45.0 7.00 0 0

ST0299.07 250 75 884 10.00 -20 9.0 46.00 0 0

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

Sample No. Al* K * Ca* Te*

ST0299.01 0 0 0 -10.00

ST0299.02 2 0 2 -10.00

ST0299.03 1 0 3 -10.00

ST0299.04 1 0 1 -10.00

ST0299.05 2 -0 3 -10.00

ST0299.06 1 -0 3 -10.00

ST0299.07 0 0 1 -10.00

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

	Province:
	Geotec.unit:
	Tectonic complex:
	Igneous complex:

Relationship	Mineral	Amount
Gangue mineral	Epidote	Major mineral (>10%)
Gangue mineral	Plagioclase	Major mineral (>10%)
Gangue mineral	Pyroxene	Subordinate mineral (1-10%)
Gangue mineral	Amphibole	Subordinate mineral (1-10%)
Gangue mineral	Garnet	Subordinate mineral (1-10%)
Ore mineral	Magnetite	Major mineral (>10%)
Ore mineral	Pyrite	Subordinate mineral (1-10%)

Relationship	Rock	Origin
Wall rock	biotittgneis	Sedimentary
		Metamorphic facies :Amphibolite
Wall rock	granittisk gneis	Extrusive
		Metamorphic facies :Amphibolite
Wall rock	hornblendegneis	Extrusive
		Metamorphic facies :Amphibolite
Wall rock	granitt	Intrusive Original rock :Granite

	Location:	Type:	Orientation(360 gr.):	Relation to min.:
	Host rock	Foliation	Strike/Dip :232 / 40	Post-mineralisation ;...Effect :None

	Activity:	Pitting	Reserves:
	Operating method:		Historical production:

Sample No.	Sample Type	Cu*	Zn*	Pb*	Co*	Ni*	Ag*	Au#
ST0299.01	Bedrock	36	62	20	55	15	-.2	-1.0
ST0299.02	Bedrock	158	42	9	17	18	-.2	-1.0
ST0299.03	Bedrock	243	58	6	90	74	.3	3.0
ST0299.04	Bedrock	17	69	19	55	10	-.2	-1.0
ST0299.05	Bedrock	553	86	5	36	29	-.2	1.0
ST0299.06	Bedrock	1537	31	4	46	48	.3	4.0
ST0299.07	Bedrock	33	115	23	44	8	-.2	-1.0

Sample No.	Pt#	Pd#	As*	Cd*	Ba*	Mo*	Sn*	Sb*	Bi*
ST0299.01	-5.0	-1.0	73	-1.0	-2	-1.00	-20	8	18
ST0299.02	-5.0	-1.0	-5	-1.0	9	3.00	-20	-5	-5
ST0299.03	5.0	18.0	36	-1.0	6	2.00	-20	-5	7
ST0299.04	-5.0	-1.0	75	-1.0	7	-1.00	-20	-5	17
ST0299.05	-5.0	4.0	20	-1.0	-2	3.00	-20	-5	8
ST0299.06	-5.0	4.0	-5	-1.0	5	4.00	-20	-5	-5
ST0299.07	-5.0	-1.0	77	-1.0	-2	-1.00	-20	8	19

Sample No.	V*	Cr*	Mn*	Fe%	W*	Sr*	La*	Na*	Mg*
ST0299.01	107	79	700	10.00	-20	9.0	46.00	0	0
ST0299.02	2	158	208	3.18	-20	93.0	3.00	0	0
ST0299.03	57	209	587	10.00	-20	58.0	19.00	0	0
ST0299.04	139	69	356	10.00	-20	32.0	44.00	0	0
ST0299.05	186	202	716	10.00	-20	62.0	17.00	-0	0
ST0299.06	23	243	660	6.14	-20	45.0	7.00	0	0
ST0299.07	250	75	884	10.00	-20	9.0	46.00	0	0

Sample No.	Al*	K *	Ca*	Te*
ST0299.01	0	0	0	-10.00
ST0299.02	2	0	2	-10.00
ST0299.03	1	0	3	-10.00
ST0299.04	1	0	1	-10.00
ST0299.05	2	-0	3	-10.00
ST0299.06	1	-0	3	-10.00
ST0299.07	0	0	1	-10.00