Английская Википедия:Härsbacka mine

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Шаблон:Infobox mine Härsbacka mine (Шаблон:Lang-sv) is a quartz and feldspar mine. It was once Sweden's foremost quartz mine.[1] The mine was closed in 1946.[2][1] The quartz and feldspar mined in Härsbacka are the main constituent of a large pegmatite dyke.[1] This pegmatite dyke dips about 60 to 70° to the southeast and has a maximum thickness of 37 m.[1] While quartz and feldspar are mostly mixed, pure zones of either occur.[1] Most feldspar is pink microclineperthite and much lesser amounts are white oligoclase.[1] There are lesser quantities of biotite, garnet, molybdenite and fluorite.[1] About 230,000 tons of quartz have been mined in total from Härsbacka mine.[1]

In 1947 the mine was bought by Statens Vattenfallverk to turn it into an oil storage depot and it functioned as such until 1985 when it was emptied.[1] Since 1997 the mine is fully flooded by groundwater.[2] In 2021 the Geological Survey of Sweden was tasked with investigating contaminants in the mine.[2]

References

Шаблон:Reflist

  1. 1,0 1,1 1,2 1,3 1,4 1,5 1,6 1,7 1,8 Шаблон:Cite book
  2. 2,0 2,1 2,2 Ошибка цитирования Неверный тег <ref>; для сносок SGUhars не указан текст