The Deposits of the Useful Minerals Rocks Their Origin Form And Content
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, with a width from 30 to 150 m.
The composition of the ore is usually fairly uniform and the iron content generally keeps between 30 and 38 per cent. Exceptionally some sections occurring in the deposits at Ornevand and consisting of magnetite, hornblende, and a little epidote, contain from 48 to 56 per cent of iron with an average of 52-53 per cent. The separation of the ore from the granite is always very well denned, . Sometimes even strikingly so. The ore-bodies are crossed by dykes of gra...nite and of a coarse- grained diabase which is partly fresh and partly very decomposed. Simi- larly to the occurrences at Taberg, Kiirunavaara-Luossavaara, and Dunderland, here also the larger deposits on account of their greater hard- ness and resistance stand out as prominences and ridges these naturally being higher the greater the mass of the deposit.
The total extent of these deposits is about 1-25 million square metres. On an average they contain about 35 per cent of iron, 0-04 per cent phos- phorus, 0-03 per cent sulphur, and a trace of titanic acid.
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To quickly assess the difficulty of the text, read a short excerpt:
, with a width from 30 to 150 m.
The composition of the ore is usually fairly uniform and the iron content generally keeps between 30 and 38 per cent. Exceptionally some sections occurring in the deposits at Ornevand and consisting of magnetite, hornblende, and a little epidote, contain from 48 to 56 per cent of iron with an average of 52-53 per cent. The separation of the ore from the granite is always very well denned, . Sometimes even strikingly so. The ore-bodies are crossed by dykes of gra...nite and of a coarse- grained diabase which is partly fresh and partly very decomposed. Simi- larly to the occurrences at Taberg, Kiirunavaara-Luossavaara, and Dunderland, here also the larger deposits on account of their greater hard- ness and resistance stand out as prominences and ridges these naturally being higher the greater the mass of the deposit.
The total extent of these deposits is about 1-25 million square metres. On an average they contain about 35 per cent of iron, 0-04 per cent phos- phorus, 0-03 per cent sulphur, and a trace of titanic acid.
What to read after The Deposits of the Useful Minerals Rocks Their Origin Form And Content?
You can find similar books in the "Read Also" column, or choose other free books by Franz Heinrich August Beyschlag to read onlineMoreLess
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