Generally, soils which have 20% organic matter or more organic material to a depth of 35cm is considered as "organic soil" and taxonomically referred to as histosol
The significance of a thin coal within the open water facies association depends on its origin: given its discontinuous nature and lack of underlying roots, it likely represents organic material (vitrain) resulting from coalification of a transported lycopsid log rather than an in-situ histosol
giganteus stand is a floating mat on a histosol
The main soils in the upper Stor catchment are Histosol
, Gley, Gley-Podsol, Cambisol, Podsol, Planosol and Luvisol (Finnern, 1997).
Against all expectations, rather small specific upslope contributing catchment areas showed the highest Histosol
 probability .
AL2D seems to be a paleosoil of organic nature (histosol
) which must have developed in a flooded area of low energy.
Con el analisis de las asociaciones fitoliticas encontradas en muestras seleccionadas de un Histosol
Hemico Ombrico, de la turbera de Borralleiras da Cal Grande, desarrollada sobre un paleosuelo (10.720 a cal.