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Social and Behavioral Sciences Commons™
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Articles 1 - 4 of 4
Full-Text Articles in Social and Behavioral Sciences
Prediction Of Soil Formation As A Function Of Age Using The Percolation Theory Approach, Markus Egli, Allen G. Hunt, Dennis Dahms, Gerald Raab, Curdin Derungs, Salvatore Raimondi, Fang Yu
Prediction Of Soil Formation As A Function Of Age Using The Percolation Theory Approach, Markus Egli, Allen G. Hunt, Dennis Dahms, Gerald Raab, Curdin Derungs, Salvatore Raimondi, Fang Yu
Faculty Publications
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 empirical …
Cirques As Glacier Locations, William L. Graf
Cirques As Glacier Locations, William L. Graf
Faculty Publications
A comparison between the 319 cirques that contain glaciers and a sample of 240 empty cirques in the Rocky Mountains shows that in the present climatic situation, landforms are strong factors in determining the locations of glaciers. An optimum glacier location is a large cirque facing northeast, with a planimetric shape of width greater than length, high steep walls, a pass located to the windward, and a peak to the southwest. Glaciers survive in the present climatic conditions because of a geomorphic feedback system, whereby glaciers are protected by cirque forms that owe their morphology to glacial processes.
Quantitative Analysis Of Pinedale Landforms, Beartooth Mountains, Montana And Wyoming, William L. Graf
Quantitative Analysis Of Pinedale Landforms, Beartooth Mountains, Montana And Wyoming, William L. Graf
Faculty Publications
The spatial distribution of terminal moraines in alpine valleys can be quantitatively described using distance/regression models. Surface parameters indicative of age may also be numerically analyzed. Evaluation of postglacial modification of valley sides between terminal moraines provides an additional indicator of relative age of valley segments. Analysis of the geomorphology of alpine features in the upper Rock Creek drainage in the southeastern Beartooth Mountains, Montana, shows that glaciers in this area deposited evidence of two Bull Lake, four Pinedale, and two Neo glacial advances.
The Geomorphology Of The Glacial Valley Cross Section, William L. Graf
The Geomorphology Of The Glacial Valley Cross Section, William L. Graf
Faculty Publications
Several alpine valley systems in the southeastern Beartooth Mountains, Montana and Wyoming, have been examined using techniques similar to methods of stream system analysis. The general equation y = a x**b is the most adequate mathematical model for the cross valley profile; b values range between 1.5 and 2.0, indicating a parabolic form. As intensity of erosion increases in the glacial valley system, the b value also increases, indicating relatively deeper and narrower valley cross sections. The law of stream numbers, the law of stream lengths, and the bifurcation ratio, derived from fluvial geomorphology, are also applicable in glacial geomorphology.