Laisvall Mine, Arjeplog, Norrbotten County, Swedeni
| Regional Level Types | |
|---|---|
| Laisvall Mine | Mine |
| Arjeplog | Municipality |
| Norrbotten County | County |
| Sweden | Country |
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Latitude & Longitude (WGS84):
66° 4' 55'' North , 17° 6' 12'' East
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Östansjö | 862 (2017) | 18.9km |
Other Languages:
Swedish:
Laisvallgruvan, Arjeplogs kommun, Norrbottens län, Sverige
Sandstone lead-zinc deposit located at the Caledonian border of Sweden.
80 million tons of ore in two Eocambrian sandstone thin horizons.
Host rocks:
- Upper sandstone (ore-bearing/zinc-dominant): alternating layers of coarse and fine-grained wellsorted quartzite
- Middle sandstone (barren): with clayey matrix
- Lower sandstone (ore-bearing/lead-dominant): fine-grained, well-sorted quartzite with thin shale bands
Calcite is enriched with F and Ba, and has alternatively precipitated on warming and dissolved on cooling. Sulfides precipitated during cooling.
Quartz deposition precedes and postdates ore deposition.
Conditions of formation : 170-130°C / 24 wt% eq NaCl. Hot metal-rich brine moving from the west mixed with a cool local S-rich groundwater of lower salinity, replenished by seasonal rainfall.
First ore boulders found in 1938, followed by extensive exploration until 1942. Agreement between the Boliden Company and the Swedish government to mine and produce Pb in order to secure metal for the domestic demand during WWII. 1943 first ore shipment to the melter in Rönnskär. In 1950 ore production rises from 50kton/a to 500 kt, further increased in 1975 to 1400 kt/a, and finally close to 2000 kt. The mine closed in December 2001. (www.boliden.com)
Three separate ore-bodies, but five different names attributed to them, from West; North and South Nadok-, Kautsky-, Södra Strand- (South Shore) and Central-ore. The latter three are connected.
80 million tons of ore in two Eocambrian sandstone thin horizons.
Host rocks:
- Upper sandstone (ore-bearing/zinc-dominant): alternating layers of coarse and fine-grained wellsorted quartzite
- Middle sandstone (barren): with clayey matrix
- Lower sandstone (ore-bearing/lead-dominant): fine-grained, well-sorted quartzite with thin shale bands
Calcite is enriched with F and Ba, and has alternatively precipitated on warming and dissolved on cooling. Sulfides precipitated during cooling.
Quartz deposition precedes and postdates ore deposition.
Conditions of formation : 170-130°C / 24 wt% eq NaCl. Hot metal-rich brine moving from the west mixed with a cool local S-rich groundwater of lower salinity, replenished by seasonal rainfall.
First ore boulders found in 1938, followed by extensive exploration until 1942. Agreement between the Boliden Company and the Swedish government to mine and produce Pb in order to secure metal for the domestic demand during WWII. 1943 first ore shipment to the melter in Rönnskär. In 1950 ore production rises from 50kton/a to 500 kt, further increased in 1975 to 1400 kt/a, and finally close to 2000 kt. The mine closed in December 2001. (www.boliden.com)
Three separate ore-bodies, but five different names attributed to them, from West; North and South Nadok-, Kautsky-, Södra Strand- (South Shore) and Central-ore. The latter three are connected.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsCommodity List
This is a list of exploitable or exploited mineral commodities recorded at this locality.Mineral List
9 valid minerals.
Detailed Mineral List:
| ⓘ Baryte Formula: BaSO4 Description: |
| ⓘ Calcite Formula: CaCO3 |
| ⓘ Fluorite Formula: CaF2 |
| ⓘ Galena Formula: PbS |
| ⓘ Muscovite Formula: KAl2(AlSi3O10)(OH)2 |
| ⓘ Muscovite var. Sericite Formula: KAl2(AlSi3O10)(OH)2 |
| ⓘ Native Silver Formula: Ag |
| ⓘ Pyrite Formula: FeS2 |
| ⓘ Quartz Formula: SiO2 |
| ⓘ Sphalerite Formula: ZnS References: Lindblom, Sten, Rickard, David T. (1978) Fluid inclusions in sphalerite at Laisvall, Sweden. Geologiska Föreningen i Stockholm Förhandlingar, 100 (2) 177-180 doi:10.1080/11035897809454457 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Native Silver | 1.AA.05 | Ag |
| Group 2 - Sulphides and Sulfosalts | |||
| ⓘ | Sphalerite | 2.CB.05a | ZnS |
| ⓘ | Galena | 2.CD.10 | PbS |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| Group 3 - Halides | |||
| ⓘ | Fluorite | 3.AB.25 | CaF2 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Calcite | 5.AB.05 | CaCO3 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| ⓘ | Baryte | 7.AD.35 | BaSO4 |
| Group 9 - Silicates | |||
| ⓘ | Muscovite | 9.EC.15 | KAl2(AlSi3O10)(OH)2 |
| ⓘ | var. Sericite | 9.EC.15 | KAl2(AlSi3O10)(OH)2 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| H | ⓘ Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| C | Carbon | |
| C | ⓘ Calcite | CaCO3 |
| O | Oxygen | |
| O | ⓘ Baryte | BaSO4 |
| O | ⓘ Calcite | CaCO3 |
| O | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| F | Fluorine | |
| F | ⓘ Fluorite | CaF2 |
| Al | Aluminium | |
| Al | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Al | ⓘ Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| Si | Silicon | |
| Si | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Si | ⓘ Quartz | SiO2 |
| Si | ⓘ Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| S | Sulfur | |
| S | ⓘ Baryte | BaSO4 |
| S | ⓘ Galena | PbS |
| S | ⓘ Pyrite | FeS2 |
| S | ⓘ Sphalerite | ZnS |
| K | Potassium | |
| K | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| K | ⓘ Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| Ca | Calcium | |
| Ca | ⓘ Calcite | CaCO3 |
| Ca | ⓘ Fluorite | CaF2 |
| Fe | Iron | |
| Fe | ⓘ Pyrite | FeS2 |
| Zn | Zinc | |
| Zn | ⓘ Sphalerite | ZnS |
| Ag | Silver | |
| Ag | ⓘ Native Silver | Ag |
| Ba | Barium | |
| Ba | ⓘ Baryte | BaSO4 |
| Pb | Lead | |
| Pb | ⓘ Galena | PbS |
Other Regions, Features and Areas containing this locality
Eurasian PlateTectonic Plate
- CaledonidesOrogenic Belt
EuropeContinent
ScandinaviaRegion
Sweden
- ⭔Lappland ProvinceProvince
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References
RICKARD, DAVID T., WILLDEN, M., MÅRDE, Y., RYHAGE, R. (1975) Hydrocarbons associated with lead–zinc ores at Laisvall, Sweden. Nature, 255 (5504). 131-133 doi:10.1038/255131a0
Lindblom, Sten, Rickard, David T. (1978) Fluid inclusions in sphalerite at Laisvall, Sweden. Geologiska Föreningen i Stockholm Förhandlingar, 100 (2) 177-180 doi:10.1080/11035897809454457
Rickard, D. T., Willden, M. Y., Marinder, N. E., Donnelly, T. H. (1979) Studies on the genesis of the Laisvall sandstone lead-zinc deposit, Sweden. Economic Geology, 74 (5) 1255-1285 doi:10.2113/gsecongeo.74.5.1255
Willdén, Mats (1980) Sedimentological aspects of the Laisvall lead-zinc deposit. Geologiska Föreningen i Stockholm Förhandlingar, 102 (3) 295 doi:10.1080/11035898009455186
Ncube, A. N., Amstutz, G. C. (1981) Studies on the genesis of the Laisvall sandstone lead-zinc deposit, Sweden; discussion. Economic Geology, 76 (7) 2047-2052 doi:10.2113/gsecongeo.76.7.2047
Rickard, David (1981) Isotopic constraints on the source of lead in the Laisvall sandstone lead-zinc deposit, Sweden. Geologiska Föreningen i Stockholm Förhandlingar, 103 (1) 126 doi:10.1080/11035898109455220
Rickard, David T., Willden, M. Y., Marinder, N. E., Donelly, T. H. (1981) Studies of the genesis of the Laisvall sandstone lead-zinc deposit, Sweden; reply. Economic Geology, 76 (7) 2052-2060 doi:10.2113/gsecongeo.76.7.2052
Ahlberg, Per (1983) Lower Cambrian trilobites from the Laisvall area, northern Sweden. Geologiska Föreningen i Stockholm Förhandlingar, 105 (3) 251-259 doi:10.1080/11035898309452594
Lindblom, Sten (1984) Calcite carbon and oxygen isotope evidence for ore formation at Laisvall, Sweden. Bulletin de Minéralogie, 107 (2) 241-253 doi:10.3406/bulmi.1984.7756
Lindblom, Sten (1986) Textural and fluid inclusion evidence for ore deposition in the Pb-Zn deposit at Laisvall, Sweden. Economic Geology, 81 (1) 46-64 doi:10.2113/gsecongeo.81.1.46
Saintilan, Nicolas J., Spangenberg, Jorge E., Samankassou, Elias, Kouzmanov, Kalin, Chiaradia, Massimo, Stephens, Michael B., Fontboté, Lluís (2016) A refined genetic model for the Laisvall and Vassbo Mississippi Valley-type sandstone-hosted deposits, Sweden: constraints from paragenetic studies, organic geochemistry, and S, C, N, and Sr isotope data. Mineralium Deposita, 51 (5) 639-664 doi:10.1007/s00126-015-0627-7
Laisvall Mine, Arjeplog, Norrbotten County, Sweden