0000000000287238

AUTHOR

Gerald Raab

0000-0002-3063-6806

showing 2 related works from this author

Prediction of Soil Formation as a Function of Age Using the Percolation Theory Approach

2018

Recent modeling and comparison with field results showed that soil formation by chemical weathering, either from bedrock or unconsolidated material, is limited largely by solute transport. Chemical weathering rates are proportional to solute velocities. Nonreactive solute transport described by non-Gaussian transport theory appears compatible with soil formation rates. This change in understanding opens new possibilities for predicting soil production and depth across orders of magnitude of time scales. Percolation theory for modeling the evolution of soil depth and production was applied to new and published data for alpine and Mediterranean soils. The first goal was to check whether the e…

010504 meteorology & atmospheric sciencesSoil production functionSoil texturesoil depthSoil modeling percolation theory chemical weathering soil depth alpine mediterraneanmediterraneanWeatheringSoil science01 natural sciencespercolation theorychemical weathering2300 General Environmental Science910 Geography & travellcsh:Environmental sciences0105 earth and related environmental sciencesGeneral Environmental Sciencelcsh:GE1-350geographygeography.geographical_feature_categorysoil modelingBedrockalpineTree throw04 agricultural and veterinary sciences10122 Institute of GeographySettore AGR/14 - PedologiaSoil water040103 agronomy & agricultureErosion0401 agriculture forestry and fisheriesEnvironmental scienceBioturbation
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Linking tephrochronology and soil characteristics in the Sila and Nebrodi mountains, Italy

2017

Recent studies have demonstrated that soils formed on pyroclastic ash deposits are much more common in the Mediterranean area than previously assumed. These soils are an important key to understanding past volcanic events and landscape evolution. Chronological information in soils of Quaternary volcanic events, however, remains still poorly understood in southern Italy. Using a multi-method forensic approach, we explore the origin and age of volcanic deposits (soils) in Sicily and Calabria. The geochemical signature of the soil was compared to the chemical fingerprint of the magmas of potential source areas of southern Italian volcanoes. The results indicate that the investigated soils on t…

010504 meteorology & atmospheric sciencesEarth science1904 Earth-Surface ProcessesGeo-forensicPyroclastic rockWeatheringVolcanism010502 geochemistry & geophysics01 natural scienceslaw.inventionQuaternarylawVolcanic sedimentRadiocarbon dating910 Geography & travel0105 earth and related environmental sciencesEarth-Surface ProcessesgeographySoil evolutiongeography.geographical_feature_categoryBedrockEarth15. Life on land10122 Institute of GeographySurface ProcessesVolcanoSettore AGR/14 - PedologiaClastic rockDatingTephrochronologyGeologyCATENA
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