Fact Sheet for <b>Occurence 4003

					Norsk versjon
	THE ORE DATABASE
	Occurence 4003 - 017 Meisholt
	(Object Id: 5620) (Last updated: 10.10.2023)

Location

County:

Telemark

Municipality:

Skien (4003)

Map 1:50000:

Nordagutu (1713-4)

Map 1:250000:

Skien

Coordinate system:

EU89-UTM Zone 32

East:

531802 m.

North:

6576490 m.

Longitude:

9.5588340

Latitude:

59.3260390

Show on map

Resource

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

Importance

Raw material meaning:

Not Assessed (reg. 18.02.2015)

Mineralization

Genesis: Form:

Main texture: Min. distribution:

Main grain size: Main alteration:

Strike/Dip: Direction:

Plunge:

Stratigraphic classification of host rock

Era: Period:

Province:

Geotec.unit:

Tectonic complex:

Igneous complex:

Group: Formation:

Information(s) in free text format

Description

Larsen (1993) nevner fire dels gjenraste synker, á 2,5 - 5 m i diameter på en rekke over 50 m, samt en femte synk ca 150 m lengre mot nord i Meiseholtet på Teigkollens vestside, omtrent 350 m sørøst for Flittig bru. Foslie (1925) nevner også "Flittig skjerp" som skal være nordvest for "Meisholt gruve". Larsen spekulerer i at dette kan være det nordligste av de fem synkene. Meisholt gruve ble mutet av Fossum Jernverk i 1798. I følge Larsen (1993) er det en linse eller gang av en magnetitt-apatitt-aegirin-bergart (jacupirangitt) som opptrer i en syenitt nær grensen til basalt. Det finnes også lokal impregnasjon av magnetitt og sulfider i syenitten. I den nordligste gropa (Flittig skjerp?) er den malmførende sonen 1,5m bred. Flyttet fra EU89-UTM Zone 32 532268 6575691 til 32 531802 6576491 23/6 2022 etter innspill fra C. Borchgrevink-Vigeland.

Bibliography:

From NGU's Reference Archive:

Foslie, Steinar , 1925

Syd-Norges gruber og malmforekomster.

;Norges geologiske undersøkelse;TIDSSKRIFTARTIKKEL;NGU; No.126;1-89 + ka pages

Abstract:

On the map accompanying this paper all the mines and ore deposits of Southern Norway are collected for the first time.The material has been gathered from printed and unprinted sources, communications from mining engineers and geologists, and through personal visits. Included are all mines and ore deposits of former, present and future importance. Among the 1407 deposits on the map, there are furthermore included all of doubtful value and many which are quite unworkable, but of geological interest, or those which mark the distribution of ore bearing formations. For this reason it has been necessary to mark the deposits with signs of different size. The object is only to facilitate a comprehensive view of the map, and is not an effort of economic classification, which for most of them would be quite impossible. The sizes refer to the presumed importance of the ore deposit, and has nothing to do with the extent of the mining operations. Mines and deposits out of work during the period 1913-1923 have been separately marked (see the legend), also deposits which were formerly of much greater importance than now. For the smallest mines and deposits no distinction has been made in these respects. Among them are represented partly those, which are in reality unworkable, partly those which are little investigated.

Larsen, Alf Olav , 1993

Gruver og skjerp i Skien

;Norges geologiske undersøkelse;FAGRAPPORT;Bergarkivet; No.BA 7706;72 pages

Fieldsamples

Sample No. Sample type Miscellanrous

SILJ119413 Bedrock

Sampler: Nolwenn Coint

Comment: Medium to fine-grained magnetite-rich rock with feldspar phenocrysts

No. of registrated element analyses = 1

No. of registrated oxide analyses = 1

SILJ119414 Bedrock

Sampler: Nolwenn Coint

Comment: Fe-Ti-P-rich rock

No. of registrated element analyses = 1

No. of registrated oxide analyses = 1

SILJ119416b Bedrock

Sampler: Nolwenn Coint

Comment: Fine-grained magnetite-rich rocks

No. of registrated element analyses = 1

No. of registrated oxide analyses = 1

SILJ119417 Bedrock

Sampler: Nolwenn Coint

Comment: Medium-grained magnetite-rich rock with feldspar phenocrysts

No. of registrated element analyses = 1

No. of registrated oxide analyses = 1

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

Analyse Results

from

Deposit Area 4003 - 017 Meisholt

Element analyses
( *=parts pr. million, #=parts pr.billion, Negative values means below detection limit value.)

Sample No. Sample Type Cu* Zn* Pb* Co* Ni* Ba* Mo*

SILJ119413 Bedrock 649 173 111 19 22 243 19.40

SILJ119414 Bedrock 2130 301 55 36 40 393 4.50

SILJ119416b Bedrock 0 794 -5 0 18 19 -3.00

SILJ119417 Bedrock 231 507 12 27 12 650 -3.00

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

Sample No. Sn* Ga* V* Cr* Th* U* W* Rb* Sr*

SILJ119413 27 37.30 178 5 68.70 34.60 5 159.0 143.0

SILJ119414 16 32.30 368 63 12.30 4.60 2 59.4 261.0

SILJ119416b 16 30.20 442 31 5.00 1.40 1 -5.0 55.0

SILJ119417 8 33.00 220 35 2.50 0.80 1 21.3 216.0

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

Sample No. Y* Zr* Nb* Ta* Cs* La* Ce* Pr* Nd*

SILJ119413 257.0 3580 614.00 30.30 3.10 377.00 842.00 87.50 322.00

SILJ119414 184.0 437 156.00 7.50 1.60 285.00 655.00 75.90 297.00

SILJ119416b 217.0 251 128.00 6.50 -0.40 387.00 863.00 96.00 396.00

SILJ119417 98.4 138 68.90 3.30 0.50 188.00 408.00 46.30 187.00

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

Sample No. Sm* Eu* Gd* Tb* Dy* Ho* Er* Tm* Yb*

SILJ119413 60.10 8.80 50.00 8.30 48.70 10.10 28.00 4.40 29.80

SILJ119414 57.90 8.90 45.50 7.00 38.40 7.70 19.30 2.70 16.90

SILJ119416b 72.60 12.00 58.50 8.60 43.60 8.40 20.40 2.50 14.10

SILJ119417 34.10 7.40 25.90 3.70 19.90 3.80 9.10 1.20 6.70

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

Sample No. Lu* Be* F* Sc* Hf*

SILJ119413 4.60 21 0 34.40 92.70

SILJ119414 2.50 5 0 62.30 14.50

SILJ119416b 2.00 -1 0 54.80 8.10

SILJ119417 1.00 -1 0 30.90 4.20

Oxide analyses
( All values are in % )

Sample No. Sample Type SiO2 Al2O3 TiO2 Fe2O3 MnO MgO CaO

SILJ119413 Bedrock 45.60 9.27 3.03 19.80 0.58 3.98 7.28

SILJ119414 Bedrock 36.90 5.93 4.22 27.20 0.70 6.80 10.70

SILJ119416b Bedrock 14.30 2.10 10.80 54.80 1.19 4.31 9.48

SILJ119417 Bedrock 36.60 10.00 5.73 30.40 0.62 3.15 5.51

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

Sample No. Na2O K2O P2O5 Loss Sum

SILJ119413 3.64 3.37 1.58 -0.15 98.00

SILJ119414 2.20 1.61 1.92 -0.35 98.00

SILJ119416b 0.22 0.04 3.63 -1.16 100.00

SILJ119417 3.52 1.90 1.89 0.03 99.00

	Genesis:		Form:
	Main texture:		Min. distribution:

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

Sample No.	Sample Type	Cu*	Zn*	Pb*	Co*	Ni*	Ba*	Mo*
SILJ119413	Bedrock	649	173	111	19	22	243	19.40
SILJ119414	Bedrock	2130	301	55	36	40	393	4.50
SILJ119416b	Bedrock	0	794	-5	0	18	19	-3.00
SILJ119417	Bedrock	231	507	12	27	12	650	-3.00

Sample No.	Sn*	Ga*	V*	Cr*	Th*	U*	W*	Rb*	Sr*
SILJ119413	27	37.30	178	5	68.70	34.60	5	159.0	143.0
SILJ119414	16	32.30	368	63	12.30	4.60	2	59.4	261.0
SILJ119416b	16	30.20	442	31	5.00	1.40	1	-5.0	55.0
SILJ119417	8	33.00	220	35	2.50	0.80	1	21.3	216.0

Sample No.	Y*	Zr*	Nb*	Ta*	Cs*	La*	Ce*	Pr*	Nd*
SILJ119413	257.0	3580	614.00	30.30	3.10	377.00	842.00	87.50	322.00
SILJ119414	184.0	437	156.00	7.50	1.60	285.00	655.00	75.90	297.00
SILJ119416b	217.0	251	128.00	6.50	-0.40	387.00	863.00	96.00	396.00
SILJ119417	98.4	138	68.90	3.30	0.50	188.00	408.00	46.30	187.00

Sample No.	Sm*	Eu*	Gd*	Tb*	Dy*	Ho*	Er*	Tm*	Yb*
SILJ119413	60.10	8.80	50.00	8.30	48.70	10.10	28.00	4.40	29.80
SILJ119414	57.90	8.90	45.50	7.00	38.40	7.70	19.30	2.70	16.90
SILJ119416b	72.60	12.00	58.50	8.60	43.60	8.40	20.40	2.50	14.10
SILJ119417	34.10	7.40	25.90	3.70	19.90	3.80	9.10	1.20	6.70

Sample No.	Sample Type	SiO2	Al2O3	TiO2	Fe2O3	MnO	MgO	CaO
SILJ119413	Bedrock	45.60	9.27	3.03	19.80	0.58	3.98	7.28
SILJ119414	Bedrock	36.90	5.93	4.22	27.20	0.70	6.80	10.70
SILJ119416b	Bedrock	14.30	2.10	10.80	54.80	1.19	4.31	9.48
SILJ119417	Bedrock	36.60	10.00	5.73	30.40	0.62	3.15	5.51

Sample No.	Na2O	K2O	P2O5	Loss	Sum
SILJ119413	3.64	3.37	1.58	-0.15	98.00
SILJ119414	2.20	1.61	1.92	-0.35	98.00
SILJ119416b	0.22	0.04	3.63	-1.16	100.00
SILJ119417	3.52	1.90	1.89	0.03	99.00