Some notes on clay minerals in Podzol profiles in Fennoscandia
Montmorillonite is found to be a predominant clay mineral in the < 2/z fraction of the A2 horizon of podzol profiles in Fennoscandia, even when these are only 300 years old. Irt fractions between 2/ ~ and 20/ ~ vermiculite and. hydrobiotite predominate, but are rarely detected in the fraction coa...
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| Format: | Text |
| Language: | English |
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1960
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| Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.559.8983 http://www.minersoc.org/pages/Archive-CM/Volume_4/4-24-208.pdf |
| Summary: | Montmorillonite is found to be a predominant clay mineral in the < 2/z fraction of the A2 horizon of podzol profiles in Fennoscandia, even when these are only 300 years old. Irt fractions between 2/ ~ and 20/ ~ vermiculite and. hydrobiotite predominate, but are rarely detected in the fraction coarser than 20/z. Vermiculite and hydrobiotite are also found in the finer fractions of the B horizon, but are only rarely detected in the C horizon where their presence is apparently due to contamination with inter-glacial or older products of weathering. The presence of kaolinite in some profiles is explicable in the same way. |
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