Fact Sheet for <b>Occurence 3232

					Norsk versjon
	THE ORE DATABASE
	Occurence 3232 - 001 Gjermåa
	(Object Id: 6536) (Last updated: 19.12.2022)

Location

County:

Akershus

Municipality:

Nittedal (3232)

Map 1:50000:

Nannestad (1915-3)

Map 1:250000:

Hamar

Coordinate system:

EU89-UTM Zone 32

East:

605544 m.

North:

6668209 m.

Longitude:

10.9002930

Latitude:

60.1372080

Show on map

Resource

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

Importance

Raw material meaning:

Not Assessed (reg. 18.02.2015)

Resources and production

	Activity:	Pitting	Reserves:
	Operating method:		Historical production:

Mineralization

Era: Paleozoic Period: Permian

Genesis: Unknown Form:

Main texture: Structureless Min. distribution: Disseminated (<20 % ore minerals)

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

Strike/Dip: Direction:

Plunge:

Stratigraphic classification of host rock

Era: Paleozoic Period:

Province: Oslo Region

Geotec.unit:

Tectonic complex:

Igneous complex: Nordmarka-Hurdal Batholith

Group: Formation:

Mineralogy

Relationship Mineral Amount

Gangue mineral Quartz Major mineral (>10%)

Gangue mineral Feldspar Major mineral (>10%)

Ore mineral Pyrite Major mineral (>10%)

Lithology:

Relationship Rock Origin

Host rock Quartz-feldspar rock Sedimentary

Metamorphic facies :Contact

Information(s) in free text format

Free text

Forekomsten ligger på vestsida av elva som følger en forkastning mellom proterozoiske gneiser i vest og Kirkebyfeltets hornfels i øst. Skjerpet ligger ved en sti som fører fram til en gangbru over elva. Det består av en 12 m lang dagskjæring med retning 295° og har en opptil 5 m høy vegg i vest. Sulfidmineraliseringene består av kraftig disseminasjon av svovelkis i en kvarts- og kvarts-feltspatrik bergart, og er svært forskjellig fra de andre mineraliseringene i Kirkebyfeltet.

Fieldsamples

Sample No. Sample type Miscellanrous

JS-OS2114 Dump

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

Comment: Pyrite, dissemination in very fine-grained quartzitic rock

No. of registrated element analyses = 1

JS-OS2115 Bedrock

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

Comment: Pyrite, dissemination i quartz-feldspar rock

No. of registrated element analyses = 1

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

Analyse Results

from

Deposit Area 3232 - 001 Gjermåa

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-OS2114 Dump 18 390 511 130 45 4.2 13.0

JS-OS2115 Bedrock 47 1300 806 181 68 8.0 20.0

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

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

JS-OS2114 -2.5 -.5 113 2.0 80 6.61 2 1 10

JS-OS2115 -2.5 -.5 168 6.9 60 3.55 1 1 24

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

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

JS-OS2114 1.00 8.43 0.07 0.07 9.15 15 4 3460 8.47

JS-OS2115 2.00 6.62 0.18 0.25 9.99 18 5 13150 13.25

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

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

JS-OS2114 1.15 1 91.4 26.0 6.1 11 1.20 0.09 1.15

JS-OS2115 2.59 1 59.6 81.6 18.4 9 1.00 0.09 0.80

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

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

JS-OS2114 18.70 34.70 1 1 200 1600 25400 30 12400

JS-OS2115 32.40 62.20 1 1 200 1500 17500 50 8300

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

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

JS-OS2114 10900 1.30 140 0.19 0.40 -0 1

JS-OS2115 42000 1.40 140 0.29 0.30 -0 1

Era:	Paleozoic	Period:	Permian
Genesis:	Unknown	Form:
Main texture:	Structureless	Min. distribution:	Disseminated (<20 % ore minerals)

	Province:	Oslo Region
	Geotec.unit:
	Tectonic complex:
	Igneous complex:	Nordmarka-Hurdal Batholith

Relationship	Mineral	Amount
Gangue mineral	Quartz	Major mineral (>10%)
Gangue mineral	Feldspar	Major mineral (>10%)
Ore mineral	Pyrite	Major mineral (>10%)

Relationship	Rock	Origin
Host rock	Quartz-feldspar rock	Sedimentary
		Metamorphic facies :Contact

Sample No.	Sample Type	Cu*	Zn*	Pb*	Co*	Ni*	Ag*	Au#
JS-OS2114	Dump	18	390	511	130	45	4.2	13.0
JS-OS2115	Bedrock	47	1300	806	181	68	8.0	20.0

Sample No.	Pt#	Pd#	As*	Cd*	Ba*	Mo*	Sn*	Sb*	Bi*
JS-OS2114	-2.5	-.5	113	2.0	80	6.61	2	1	10
JS-OS2115	-2.5	-.5	168	6.9	60	3.55	1	1	24

Sample No.	Se*	Ga*	Ge*	In*	S%	V*	Cr*	Mn*	Fe%
JS-OS2114	1.00	8.43	0.07	0.07	9.15	15	4	3460	8.47
JS-OS2115	2.00	6.62	0.18	0.25	9.99	18	5	13150	13.25

Sample No.	Th*	W*	Rb*	Sr*	Y*	Zr*	Nb*	Ta*	Cs*
JS-OS2114	1.15	1	91.4	26.0	6.1	11	1.20	0.09	1.15
JS-OS2115	2.59	1	59.6	81.6	18.4	9	1.00	0.09	0.80

Sample No.	La*	Ce*	Li*	Be*	Na*	Mg*	Al*	P*	K *
JS-OS2114	18.70	34.70	1	1	200	1600	25400	30	12400
JS-OS2115	32.40	62.20	1	1	200	1500	17500	50	8300

Sample No.	Ca*	Sc*	Ti*	Te*	Hf*	Re*	Tl*
JS-OS2114	10900	1.30	140	0.19	0.40	-0	1
JS-OS2115	42000	1.40	140	0.29	0.30	-0	1