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.
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.
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.
Eleven well-drained soils formed in till parent materials of varying ages in northeastern Pennsylvania were studied to determine changes in the soils with time. Four profiles (three Lackawanna and one Bath) were formed in Woodfordian till (15,000 yr
not form in parent materials that are still calcareous. This Natrargid formed in a playa-margin environment, where clay for translocation and sodium salts that engender rapid clay movement probably were provided by dust fall.
The crushing of mineral material and the formation of resistant mineral modes during the glacial transport are mainly dependant on the primary properties of the mineral material, inherited from the parent rock. This is illustrated
). In the dry area dune sand rich in CaCO is also stabilized, but no prominent changes occur in composition. This material may be the parent material of Kurkar (calcareous sandstone).
The rare earth elements (REE) have been mobilised and fractionated during supracrustal alteration of the Torrongo granodiorite. Compared with the parent granodiorite, incipiently and moderately altered rocks are particularly enriched in the heavy