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THE ORE DATABASE
Deposit Area 2020 - 025
(Last updated 22.mar.2013)

Name of Deposit Area : Porsvann
(Object Id : 2020,025,00,00)
Drill Cores from the Deposit Area: See Borehole Area Porsvann
Location
County : Finnmark (20) Municipality : Porsanger (2020)
Map 1:50000: Lakselv (2035-3) Map 1:250000: Honningsvåg
Marking point: Longitude: 24.9960290 Latitude: 70.0116300
EU89-UTM Zone 35 (Coordinates IS confirmed)
X-coord: 423560 m. Y-coord: 7768426 m.
Commodity
Main Type: Precious metals (Au,Ag,PGE) Sub Type: PGE-elements
Element(s): PGE Cu
Production
Activity: Exploration Reserves:
Prod. method: Production:
Prod. status: Volume of dump:

Importance
Public: Not Assessed (reg. 20.03.2017)
Economical: Significant , (Confirmed 26.okt.2005 by Morten Often)

Operations
From - To Activity Comments
1990 - 1991 Geology Company/Institution :NGU
1992 - 1992 Core drilling Company/Institution :NGU

Mineralization
Era: Proterozoic Period: Paleoproterozoic
Dating: Method:
Genesis: Orthomagmatic formation Form: Irregular
Main texture: Structureless Min. distribution: Disseminated (<20 % ore minerals)
Main grain size: Very unevenly grained Main alteration: Chloritisation
Strike/Dip: 0 / 40 Direction:
Plunge:
Stratigraphic classification of host rock
Era: Proterozoic Period: Paleoproterozoic
Province: Troms-Finnmark Basement Province
Geotec.unit: Karasjok Greenstone Belt
Tectonic complex:
Igneous complex:
Group: Iddjajav'ri Formation: Gållebai'ke

Mineralogy
Relationship Mineral Amount
Ore mineral Pyrrhotite Major mineral (>10%)
Ore mineral Magnetite Subordinate mineral (1-10%)
Ore mineral Pyrite Subordinate mineral (1-10%)
Ore mineral Pentlandite Subordinate mineral (1-10%)
Ore mineral Chalcopyrite Subordinate mineral (1-10%)

Lithology:
Relationship Rock Origin
Host rock Hornblendite Intrusive
Original rock :Pyroxenite
Metamorphic facies :Amphibolite
Wall rock Mica schist Sedimentary
Original rock :Conglomerate
Metamorphic facies :Amphibolite
Wall rock Quartzofeldspathic schist Sedimentary
Original rock :Sandstone
Metamorphic facies :Amphibolite
Wall rock Gabbro Intrusive
Original rock :Gabbro
Metamorphic facies :Amphibolite

Information(s) in free text format
Free text
The Porsvann intrusion is c. 1 km long and less than 100 m thick. It shows a transition from meta-pyroxenite to metagabbro, indicating an overall layering. NGU drilled four holes totaling 357.5 m in the body in 1992. The sulphides and other metallic minerals found in polished sections are: pyrrhotite (major phase (>10%): pyrite, pentlandite, chalcopyrite and magnetite (subsidiary phases (1-10%). The grades reach 13 ppm Pt + Pd with a Pd:Pt ratio of 3.3 – 4.3. Gold grades are 0.1 – 0.3 ppm. The best drillhole intersections contained 43m grading 1.2 ppm Pt + Pd, including 15.2 m at 2.1 ppm. Copper grades are generally in the range 100 – 5000 ppm, in some sections lower than those of Pd.

Bibliography:
From NGU's Reference Archive:
Dalsegg, Einar; Often, Morten , 1991
Geologiske- og geofysiske undersøkelser av Porsvann PGE/Cu-forekomst Porsanger, Finnmark.
;Norges geologiske undersøkelse;FAGRAPPORT;NGU-rapport; No.91.052;13 pages
Abstract:
Rapporten omfatter geologiske- og geofysiske undersøkelsert i et område ved Porsvann PGE/Cu-forekomst. Den geofysiske undersøkelsen bestod i kombinerte elektriske målinger (indusert polarisasjon, ledningsevne og SP). Den geofysiske undersøkelsen har vist at det innenfor interessante meta-pyrok- senittområdet nord for vannet er tre mineralliseringer av betydning. Strøk- utstrekningen er ca. 75 m for de to sterkeste sonene og ca. 200 m for den svakeste sonen. Ingen av sonene går ut i vannet. Dyptgående for den ene eller begge av de to sterkeste sonene er trolig minst 100 m. Utenfor dette området er det i tillegg påvist mineraliseringer både i gabbroen i vest og i amfibo- litten i øst. Disse synes å være uten interesse da det ikke er påvist palla- dium i mineraliseringene i disse bergartene.

Nordenskjøld, O. , 1908
Porsangerfeltets kopparmalmer.
;Norges geologiske undersøkelse;FAGRAPPORT;Bergarkivet; No.BA 574;3 pages
Abstract:
Lok. Nr. 50026-50. Kortfattet oversikt over Porsangerfeltets malmtyper og forslag til videre undersøkelser bl.a. prøvedrift. Forfatteren henviser til egen, mer omfattende rapport som en gitt tidligere.

Name of Locality : Malachite wall
(Object Id : 2020,025,01,00)
Location
County : Finnmark (20) Municipality : Porsanger (2020)
Map 1:50000: Lakselv (2035-3) Map 1:250000: Honningsvåg
Marking point: Longitude: 24.9947090 Latitude: 70.0124090
EU89-UTM Zone 35 (Coordinates IS confirmed)
X-coord: 423512 m. Y-coord: 7768514 m.
Commodity
Main Type: Precious metals (Au,Ag,PGE) Sub Type: PGE-elements
Element(s): PGE Cu
Production
Activity: Exploration Reserves:
Prod. method: Production:
Prod. status: Volume of dump:


Fieldsamples
Sample No. Sample type Miscellanrous
JS-K1805 Dump
Sampler :J.S. Sandstad/...Stored :L›kken/...Size(kg) :2
Comment :Bornite-pyrite-chalcopyrite dissemination in pyroxenite
No. of registrated element analyses = 1
NB! All analyse values are shown at the end of the printout.:

Name of Locality : Skjerp 1
(Object Id : 2020,025,02,00)
Location
County : Finnmark (20) Municipality : Porsanger (2020)
Map 1:50000: Lakselv (2035-3) Map 1:250000: Honningsvåg
Marking point: Longitude: 24.9955950 Latitude: 70.0119260
EU89-UTM Zone 35 (Coordinates IS confirmed)
X-coord: 423544 m. Y-coord: 7768460 m.
Commodity
Main Type: Precious metals (Au,Ag,PGE) Sub Type: PGE-elements
Element(s): PGE Cu
Production
Activity: Pitting Reserves:
Prod. method: Production:
Prod. status: Volume of dump:


Name of Locality : Skjerp 2
(Object Id : 2020,025,03,00)
Location
County : Finnmark (20) Municipality : Porsanger (2020)
Map 1:50000: Lakselv (2035-3) Map 1:250000: Honningsvåg
Marking point: Longitude: 24.9967490 Latitude: 70.0119300
EU89-UTM Zone 35 (Coordinates IS confirmed)
X-coord: 423589 m. Y-coord: 7768459 m.
Commodity
Main Type: Precious metals (Au,Ag,PGE) Sub Type: PGE-elements
Element(s): PGE Cu
Production
Activity: Pitting Reserves:
Prod. method: Production:
Prod. status: Volume of dump:


Fieldsamples
Sample No. Sample type Miscellanrous
JS-K1807 Bedrock
Sampler :J.S. Sandstad/...Stored :L›kken/...Size(kg) :2
Comment :Chalcopyrite-pyrite dissemination/aggregates in pyroxenite
No. of registrated element analyses = 1
NB! All analyse values are shown at the end of the printout.:

Name of Locality : D hole PV01
(Object Id : 2020,025,04,00)
Location
County : Finnmark (20) Municipality : Porsanger (2020)
Map 1:50000: Lakselv (2035-3) Map 1:250000: Honningsvåg
Marking point: Longitude: 24.9983200 Latitude: 70.0119560
EU89-UTM Zone 35 (Coordinates IS confirmed)
X-coord: 423649 m. Y-coord: 7768459 m.
Commodity
Main Type: Precious metals (Au,Ag,PGE) Sub Type: PGE-elements
Element(s): PGE Cu


Fieldsamples
Sample No. Sample type Miscellanrous
PV1_1 Core
Sampler :Sydvaranger
Comment :Drill core analysis from 94 to 96 m
No. of registrated element analyses = 1
PV1_10 Core
Sampler :Sydvaranger
Comment :Drill core analysis from 90 to 92 m
No. of registrated element analyses = 1
PV1_11 Core
Sampler :Sydvaranger
Comment :Drill core analysis from 105.2 to 107 m
No. of registrated element analyses = 1
PV1_12 Core
Sampler :Sydvaranger
Comment :Drill core analysis from 80 to 82 m
No. of registrated element analyses = 1
PV1_13 Core
Sampler :Sydvaranger
Comment :Drill core analysis from 63 to 65 m
No. of registrated element analyses = 1
PV1_14 Core
Sampler :Sydvaranger
Comment :Drill core analysis from 84 to 86 m
No. of registrated element analyses = 1
PV1_15 Core
Sampler :Sydvaranger
Comment :Drill core analysis from 72 to 74 m
No. of registrated element analyses = 1
PV1_16 Core
Sampler :Sydvaranger
Comment :Drill core analysis from 67 to 70 m
No. of registrated element analyses = 1
PV1_2 Core
Sampler :Sydvaranger
Comment :Drill core analysis from 92 to 94 m
No. of registrated element analyses = 1
PV1_3 Core
Sampler :Sydvaranger
Comment :Drill core analysis from 100 to 102 m
No. of registrated element analyses = 1
PV1_4 Core
Sampler :Sydvaranger
Comment :Drill core analysis from 104 to 105.2 m
No. of registrated element analyses = 1
PV1_5 Core
Sampler :Sydvaranger
Comment :Drill core analysis from 54 to 55.5 m
No. of registrated element analyses = 1
PV1_6 Core
Sampler :Sydvaranger
Comment :Drill core analysis from 96 to 98 m
No. of registrated element analyses = 1
PV1_7 Core
Sampler :Sydvaranger
Comment :Drill core analysis from 98 to 100 m
No. of registrated element analyses = 1
PV1_8 Core
Sampler :Sydvaranger
Comment :Drill core analysis from 102 to 104 m
No. of registrated element analyses = 1
PV1_9 Core
Sampler :Sydvaranger
Comment :Drill core analysis from 70 to 72 m
No. of registrated element analyses = 1
NB! All analyse values are shown at the end of the printout.:

Name of Locality : D Hole Pv-02
(Object Id : 2020,025,05,00)
Location
County : Finnmark (20) Municipality : Porsanger (2020)
Map 1:50000: Lakselv (2035-3) Map 1:250000: Honningsvåg
Marking point: Longitude: 24.9963930 Latitude: 70.0118090
EU89-UTM Zone 35 (Coordinates IS confirmed)
X-coord: 423574 m. Y-coord: 7768445 m.
Commodity
Main Type: Precious metals (Au,Ag,PGE) Sub Type: PGE-elements
Element(s): PGE Cu


Fieldsamples
Sample No. Sample type Miscellanrous
PV2_1 Core
Sampler :Sydvaranger
Comment :Drill core analysis from 11.22 to 11.55 m
No. of registrated element analyses = 1
PV2_10 Core
Sampler :Sydvaranger
Comment :Drill core analysis from 53.25 to 55.8 m
No. of registrated element analyses = 1
PV2_11 Core
Sampler :Sydvaranger
Comment :Drill core analysis from 51.8 to 53.25 m
No. of registrated element analyses = 1
PV2_12 Core
Sampler :Sydvaranger
Comment :Drill core analysis from 38.97 to 41 m
No. of registrated element analyses = 1
PV2_13 Core
Sampler :Sydvaranger
Comment :Drill core analysis from 45.6 to 48.1 m
No. of registrated element analyses = 1
PV2_14 Core
Sampler :Sydvaranger
Comment :Drill core analysis from 35 to 37.4 m
No. of registrated element analyses = 1
PV2_15 Core
Sampler :Sydvaranger
Comment :Drill core analysis from 22 to 24.1 m
No. of registrated element analyses = 1
PV2_16 Core
Sampler :Sydvaranger
Comment :Drill core analysis from 26.55 to 29.5 m
No. of registrated element analyses = 1
PV2_17 Core
Sampler :Sydvaranger
Comment :Drill core analysis from 3.65 to 4.45 m
No. of registrated element analyses = 1
PV2_18 Core
Sampler :Sydvaranger
Comment :Drill core analysis from 8.75 to 9.87 m
No. of registrated element analyses = 1
PV2_2 Core
Sampler :Sydvaranger
Comment :Drill core analysis from 48.1 to 48.62 m
No. of registrated element analyses = 1
PV2_3 Core
Sampler :Sydvaranger
Comment :Drill core analysis from 60 to 62.15 m
No. of registrated element analyses = 1
PV2_4 Core
Sampler :Sydvaranger
Comment :Drill core analysis from 5.95 to 8.05 m
No. of registrated element analyses = 1
PV2_5 Core
Sampler :Sydvaranger
Comment :Drill core analysis from 50.6 to 51.8 m
No. of registrated element analyses = 1
PV2_6 Core
Sampler :Sydvaranger
Comment :Drill core analysis from 20 to 22 m
No. of registrated element analyses = 1
PV2_7 Core
Sampler :Sydvaranger
Comment :Drill core analysis from 44 to 45.6 m
No. of registrated element analyses = 1
PV2_8 Core
Sampler :Sydvaranger
Comment :Drill core analysis from 32.4 to 35 m
No. of registrated element analyses = 1
PV2_9 Core
Sampler :Sydvaranger
Comment :Drill core analysis from 62.15 to 63.05 m
No. of registrated element analyses = 1
NB! All analyse values are shown at the end of the printout.:

Name of Locality : D hole PV-03
(Object Id : 2020,025,06,00)
Location
County : Finnmark (20) Municipality : Porsanger (2020)
Map 1:50000: Lakselv (2035-3) Map 1:250000: Honningsvåg
Marking point: Longitude: 24.9960120 Latitude: 70.0122270
EU89-UTM Zone 35 (Coordinates IS confirmed)
X-coord: 423562 m. Y-coord: 7768493 m.
Commodity
Main Type: Precious metals (Au,Ag,PGE) Sub Type: PGE-elements
Element(s): PGE Cu


Fieldsamples
Sample No. Sample type Miscellanrous
PV3_1 Core
Sampler :Sydvaranger
Comment :Drill core sample from 54 to 56 m
No. of registrated element analyses = 1
PV3_2 Core
Sampler :Sydvaranger
Comment :Drill core sample from 41 to 43 m
No. of registrated element analyses = 1
PV3_3 Core
Sampler :Sydvaranger
Comment :Drill core sample from 52 to 54 m
No. of registrated element analyses = 1
NB! All analyse values are shown at the end of the printout.:

Name of Locality : D hole PV-04
(Object Id : 2020,025,07,00)
Location
County : Finnmark (20) Municipality : Porsanger (2020)
Map 1:50000: Lakselv (2035-3) Map 1:250000: Honningsvåg
Marking point: Longitude: 24.9970740 Latitude: 70.0112700
EU89-UTM Zone 35 (Coordinates IS confirmed)
X-coord: 423598 m. Y-coord: 7768385 m.
Commodity
Main Type: Precious metals (Au,Ag,PGE) Sub Type: PGE-elements
Element(s): PGE Cu


Fieldsamples
Sample No. Sample type Miscellanrous
PV4_1 Core
Sampler :Sydvaranger
Comment :Drill core sample from 47 to 49 m
No. of registrated element analyses = 1
PV4_10 Core
Sampler :Sydvaranger
Comment :Drill core sample from 84 to 86 m
No. of registrated element analyses = 1
PV4_11 Core
Sampler :Sydvaranger
Comment :Drill core sample from 54.95 to 57 m
No. of registrated element analyses = 1
PV4_2 Core
Sampler :Sydvaranger
Comment :Drill core sample from 36 to 38 m
No. of registrated element analyses = 1
PV4_3 Core
Sampler :Sydvaranger
Comment :Drill core sample from 82 to 84 m
No. of registrated element analyses = 1
PV4_4 Core
Sampler :Sydvaranger
Comment :Drill core sample from 24 to 26 m
No. of registrated element analyses = 1
PV4_5 Core
Sampler :Sydvaranger
Comment :Drill core sample from 88 to 89.2 m
No. of registrated element analyses = 1
PV4_6 Core
Sampler :Sydvaranger
Comment :Drill core sample from 16 to 18 m
No. of registrated element analyses = 1
PV4_7 Core
Sampler :Sydvaranger
Comment :Drill core sample from 74 to 76 m
No. of registrated element analyses = 1
PV4_8 Core
Sampler :Sydvaranger
Comment :Drill core sample from 20 to 22 m
No. of registrated element analyses = 1
PV4_9 Core
Sampler :Sydvaranger
Comment :Drill core sample from 41 to 43 m
No. of registrated element analyses = 1
NB! All analyse values are shown at the end of the printout.:

Analyse Results
from
Deposit Area 2020 - 025 Porsvann

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-K1805 Dump 4220 33 4 107 2440 .4 385.0
JS-K1807 Bedrock 1190 69 1 78 1965 .6 163.0
PV1_1 Core 2273
PV1_10 Core 1170
PV1_11 Core 1001
PV1_12 Core 847
PV1_13 Core 760
PV1_14 Core 633
PV1_15 Core 629
PV1_16 Core 577
PV1_2 Core 2003
PV1_3 Core 1900
PV1_4 Core 1618
PV1_5 Core 1453
PV1_6 Core 1401
PV1_7 Core 1280
PV1_8 Core 1226
PV1_9 Core 1214
PV2_1 Core 6230
PV2_10 Core 1271
PV2_11 Core 1266
PV2_12 Core 1076
PV2_13 Core 877
PV2_14 Core 819
PV2_15 Core 755
PV2_16 Core 709
PV2_17 Core 645
PV2_18 Core 572
PV2_2 Core 3827
PV2_3 Core 2847
PV2_4 Core 2811
PV2_5 Core 2242
PV2_6 Core 1595
PV2_7 Core 1491
PV2_8 Core 1381
PV2_9 Core 1339
PV3_1 Core 718
PV3_2 Core 547
PV3_3 Core 533
PV4_1 Core 1534
PV4_10 Core 607
PV4_11 Core 605
PV4_2 Core 1184
PV4_3 Core 1062
PV4_4 Core 973
PV4_5 Core 851
PV4_6 Core 813
PV4_7 Core 751
PV4_8 Core 739
PV4_9 Core 693
------------------
Sample No. Pt# Pd# As* Cd* Ba* Mo* Sn* Sb* Bi*
JS-K1805 1045.0 3370.0 1 .0 10 0.17 1 0 0
JS-K1807 1250.0 4760.0 0 .1 10 0.27 0 -0 0
PV1_1 991.0 2479.0
PV1_10 411.0 1075.0
PV1_11 183.0 347.0
PV1_12 274.0 789.0
PV1_13 80.0 328.0
PV1_14 246.0 756.0
PV1_15 1012.0 907.0
PV1_16 156.0 535.0
PV1_2 715.0 1736.0
PV1_3 640.0 1665.0
PV1_4 523.0 1425.0
PV1_5 164.0 439.0
PV1_6 295.0 841.0
PV1_7 578.0 1718.0
PV1_8 378.0 986.0
PV1_9 241.0 606.0
PV2_1 1681.0 3629.0
PV2_10 423.0 1384.0
PV2_11 497.0 1507.0
PV2_12 238.0 690.0
PV2_13 536.0 1412.0
PV2_14 178.0 461.0
PV2_15 78.0 369.0
PV2_16 113.0 310.0
PV2_17 218.0 274.0
PV2_18 228.0 779.0
PV2_2 1089.0 2887.0
PV2_3 48.0 63.0
PV2_4 738.0 2449.0
PV2_5 887.0 2097.0
PV2_6 272.0 1140.0
PV2_7 538.0 1884.0
PV2_8 455.0 1262.0
PV2_9 48.0 66.0
PV3_1 130.0 171.0
PV3_2 125.0 113.0
PV3_3 187.0 257.0
PV4_1 357.0 950.0
PV4_10 189.0 654.0
PV4_11 235.0 866.0
PV4_2 231.0 584.0
PV4_3 410.0 1398.0
PV4_4 509.0 960.0
PV4_5 184.0 887.0
PV4_6 791.0 2063.0
PV4_7 80.0 374.0
PV4_8 424.0 2043.0
PV4_9 205.0 550.0
------------------
Sample No. Se* Ga* Ge* In* S% V* Cr* Mn* Fe%
JS-K1805 8.00 5.99 0.30 0.06 1.19 137 1870 1390 7.83
JS-K1807 6.00 5.94 0.28 0.04 .58 141 4150 1260 7.37
PV1_1
PV1_10
PV1_11
PV1_12
PV1_13
PV1_14
PV1_15
PV1_16
PV1_2
PV1_3
PV1_4
PV1_5
PV1_6
PV1_7
PV1_8
PV1_9
PV2_1
PV2_10
PV2_11
PV2_12
PV2_13
PV2_14
PV2_15
PV2_16
PV2_17
PV2_18
PV2_2
PV2_3
PV2_4
PV2_5
PV2_6
PV2_7
PV2_8
PV2_9
PV3_1
PV3_2
PV3_3
PV4_1
PV4_10
PV4_11
PV4_2
PV4_3
PV4_4
PV4_5
PV4_6
PV4_7
PV4_8
PV4_9
------------------
Sample No. Th* U* W* Rb* Sr* Y* Zr* Nb* Ta*
JS-K1805 0.75 0.40 0 0.7 48.7 7.3 13 0.70 0.05
JS-K1807 0.53 0.30 0 1.7 12.2 5.9 9 0.20 -0.05
PV1_1
PV1_10
PV1_11
PV1_12
PV1_13
PV1_14
PV1_15
PV1_16
PV1_2
PV1_3
PV1_4
PV1_5
PV1_6
PV1_7
PV1_8
PV1_9
PV2_1
PV2_10
PV2_11
PV2_12
PV2_13
PV2_14
PV2_15
PV2_16
PV2_17
PV2_18
PV2_2
PV2_3
PV2_4
PV2_5
PV2_6
PV2_7
PV2_8
PV2_9
PV3_1
PV3_2
PV3_3
PV4_1
PV4_10
PV4_11
PV4_2
PV4_3
PV4_4
PV4_5
PV4_6
PV4_7
PV4_8
PV4_9
------------------
Sample No. Cs* La* Ce* Li* Be* P* Sc* Te* Hf*
JS-K1805 -0.05 2.80 6.76 2 0 100 36.00 1.22 0.50
JS-K1807 0.07 0.70 2.51 2 0 80 32.30 1.15 0.30
PV1_1
PV1_10
PV1_11
PV1_12
PV1_13
PV1_14
PV1_15
PV1_16
PV1_2
PV1_3
PV1_4
PV1_5
PV1_6
PV1_7
PV1_8
PV1_9
PV2_1
PV2_10
PV2_11
PV2_12
PV2_13
PV2_14
PV2_15
PV2_16
PV2_17
PV2_18
PV2_2
PV2_3
PV2_4
PV2_5
PV2_6
PV2_7
PV2_8
PV2_9
PV3_1
PV3_2
PV3_3
PV4_1
PV4_10
PV4_11
PV4_2
PV4_3
PV4_4
PV4_5
PV4_6
PV4_7
PV4_8
PV4_9
------------------
Sample No. Re* Tl*
JS-K1805 0 -0
JS-K1807 0 -0
PV1_1
PV1_10
PV1_11
PV1_12
PV1_13
PV1_14
PV1_15
PV1_16
PV1_2
PV1_3
PV1_4
PV1_5
PV1_6
PV1_7
PV1_8
PV1_9
PV2_1
PV2_10
PV2_11
PV2_12
PV2_13
PV2_14
PV2_15
PV2_16
PV2_17
PV2_18
PV2_2
PV2_3
PV2_4
PV2_5
PV2_6
PV2_7
PV2_8
PV2_9
PV3_1
PV3_2
PV3_3
PV4_1
PV4_10
PV4_11
PV4_2
PV4_3
PV4_4
PV4_5
PV4_6
PV4_7
PV4_8
PV4_9

The fact sheet was created on 22.11.2024
Questions or comments regarding the fact sheet can be emailed to:
ressursdatabaser@ngu.no
Copyright © 2024 Geological Survey of Norway