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Siilinjärvi carbonatite facts for kids

Kids Encyclopedia Facts
Siilinjärvi Särkijärvi pit
The Särkijärvi main pit seen from the south in April 2016

The Siilinjärvi carbonatite complex is in Central Finland near to Kuopio. It is named after the village it is next to, Siilinjärvi. It is a carbonatite mine. The complex is about 16 kilometres (9.9 mi) long. The place was discovered in 1950 by the Geological Survey of Finland. They began mining it in 1958. It is the second-largest carbonatite complex in Finland. The Sokli mine is the biggest.

Images for kids

  • Yara Siilinjärvi

    Fertilizer factories near to the mine.

  • Thin section scan crossed polarizers Siilinjärvi R301-61.70

    Thin section of apatite-rich carbonatite in cross polarised transmitted light.

  • Thin section scan crossed polarizers Siilinjärvi R636-120.45

    Thin section of apatite-rich glimmerite in cross polarised transmitted light.

  • Siilinjärvi mine Saarinen pit

    Saarinen satellite pit.

  • Thin section scan crossed polarizers Siilinjärvi R636-116.75

    Glimmerite. Scanned image of thin section from Siilinjärvi apatite ore in cross polarised transmitted light.

  • Sample Siilinjärvi R625 (110.80)

    A drill core sample from Siilinjärvi.

  • Thin section microscopy Siilinjärvi H10 phlogopite

    Tetraferriphlogopite grains. Photomicrograph from thin section in cross and plane polarised light.

  • Thin section microscopy Siilinjärvi R216 10840 carbonate

    Carbonate vein. Photomicrograph from thin section in cross and plane polarised light.

  • Thin section microscopy Siilinjärvi R301 6170 apatite

    Fluorapatite grains in carbonate groundmass. The sample is taken from non-sheared ore, and apatite grains are large, rounded and elongated. Photomicrograph from thin section in cross and plane polarised light.

  • Thin section microscopy Siilinjärvi R636 6335 amphibole

    Almost euhedral amphibole crystal in carbonate groundmass. Photomicrograph from thin section in cross and plane polarised light.

  • Thin section microscopy Siilinjärvi H2 mica-rutile

    Rutile grains as accessory post-kinematic mineral in highly deformed mica-rich zone. Photomicrograph from thin section in cross and plane polarised light.

See also

Kids robot.svg In Spanish: Complejo Siilinjärvi de carbonatita para niños

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