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Ansammlungen von biogenem Opal im A 2 ‐Horizont eines Planosols
Author(s) -
Stephan S.
Publication year - 1973
Publication title -
zeitschrift für pflanzenernährung und bodenkunde
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.644
H-Index - 87
eISSN - 1522-2624
pISSN - 0044-3263
DOI - 10.1002/jpln.19731360211
Subject(s) - horizon , silicic acid , silicic , volcano , geology , geochemistry , soil water , mineralogy , mathematics , soil science , geometry , oceanography
Accumulation of Biogenetic Opal in the A 2 ‐Horizon of a Planosol The planosol examined develops in the centre of Santa Fe Province (Argentine) among Brunizem‐soils, in a depression which sometimes is under water. Its A 2 ‐horizon is dominated by biogenetic opal whose production is favoured by a high content of volcanic glass rich in silicic acid. The horizon is indurated, when dry.