The Use of a comparative particle size distribution index for the numerical classification of soil parent materials: application to mollisols of the Argentinian pampa
The influence of parent material, relief and exposure on soil formation in the arid region of eastern Samaria in Aridic soils and geomorphic processes.
Geochemical evidence of Saharan dust parent material for soils developed on Quaternary limestones of Caribbean and western Atlantic Islands
ashes and saharan dust can be clearly distinguished using ratios of relatively immobile elements (Al2O3/TiO2, Ti/Y, Ti/Zr, and Ti/Th). Comparison of these ratios in 25 soils from 125,000 to 870,000 yr shows that saharan dust is the most important parent
Geneticeskie svjazi glinjanyh diapirov, grjazevyh vulkanov i struktur gorizontal'nogo szatija (na primere Aljatskoj grjady Jugo-Vostocnogo Kavkaza) (Liens de parenté entre les diapirs d'argile, les volcans de boue et les structures de compression
Moraine in transit as parent material for soil development and the growth of valdivian rain forest on moving ice: casa Pangue Glacier, Mount Tronador (Lat. 4110S), Chile
the weathering to be of preglacial origin. The rapakivi saprolites are of grus type. The weathering has caused both mechanical and chemical alteration of the parent rock. The residual topography comprises small tor-like features.
Présentation de l'enquête et du colloque sur l'enfant et la montagne (perception, scolarisation, santé), en France. 4questionnaires (40000envois) ont permis de toucher les enfants de 10-11ans, les instituteurs, les élus, les parents. Travail de
The results of this study support climatic control of pH buffering, and further suggest that differences in the climatic controls on pH buffering account for the difference in the pHA and pHB models. Moreover, soil parent material and soil age may
. Tills in the headwaters region of the ancient Mississippi drainage system in Minnesota and Wisconsin occur in the appropriate stratigraphic position and have colors and mineralogic compositions that suggest they could be the parent till of the Roxana.
In an effort to define the parent lobe of the deposits in central Minnesota, the tills are sampled, analyzed, and compared by graphical and multivariate techniques. Graphical comparisons of sedimentological parameters are inadequate to distinguish
the combined effects of slight variations in elevation, climate, vegetation, topography and parent materials as well as the influence of additions of atmospheric dust at the soil surface.
This paper reports the comparative results of some physical properties of cropland and permanent grassland at three sites with different parent material, under the climatic conditions of Upper Bavaria.
Recent studies show that measured soil losses due to water erosion differ significantly from estimated values using nomographs derived from loess soils. Under identical environmental conditions these deviations seem to be caused by the parent
A l'échelle des grains de quartz, mise en évidence d'une nette parenté dans la micromorphologie de ces deux types de loess, ce qui renforcerait l'idée de leur appartenance à une même famille sédimentologique.