Marith Reheis
My entire post-graduate career has been in the USGS in Denver, migrating from Conservation to Geologic Division early on, and then residing in the evolving branches of Regional Geology -- Environmental Geology -- Climate Change -- Earth Surface Processes Team. In parallel, my career has evolved through bedrock and surficial mapping, soil studies, neotectonics, desert dust sampling and a
Science and Products
Filter Total Items: 95
Influence of climate and eolian dust on the major-element chemistry and clay mineralogy of soils in the northern Bighorn basin, U.S.A. Influence of climate and eolian dust on the major-element chemistry and clay mineralogy of soils in the northern Bighorn basin, U.S.A.
Soil chronosequences in the northern Bighorn basin permit the study of chronologic changes in the major-element chemistry and clay mineralogy of soils formed in different climates. Two chronosequences along Rock Creek in south-central Montana formed on granitic alluvium in humid and semiarid climates over the past two million years. A chronosequence at the Kane fans in north-central...
Authors
Marith C. Reheis
Development rates of Late Quaternary soils, Silver Lake playa, California Development rates of Late Quaternary soils, Silver Lake playa, California
Soils formed on alluvial fan deposits that range in age from about 35 000 to 200 yr BP near Silver Lake playa in the Mojave Desert permit study of the rates of soil development in an arid, hyperthermic climate. Field-described properties of soils were quantified and analyzed using a soil development index that combines properties and horizon thicknesses. We compared the variability in...
Authors
M.C. Reheis, J.W. Harden, Leslie D. McFadden, Ralph R. Shroba
Pedogenic replacement of aluminosilicate grains by CaCO3 in Ustollic Haplargids, south-central Montana, U.S.A. Pedogenic replacement of aluminosilicate grains by CaCO3 in Ustollic Haplargids, south-central Montana, U.S.A.
A chronosequence of calcic soils formed on granitic glaciofluvial terrace deposits of Rock Creek and the Clarks Fork in south-central Montana shows progressive replacement of aluminosilicate parent-material grains by calcium-magnesium carbonate. The terraces range from late Pliocene to Holocene in age as dated by tephrochronology, correlation, and stream incision rates. Replacement is...
Authors
Marith C. Reheis
Gypsic soils on the Kane alluvial fans, Big Horn County, Wyoming Gypsic soils on the Kane alluvial fans, Big Horn County, Wyoming
No abstract available.
Authors
Marith C. Reheis
Climatic implications of alternating clay and carbonate formation in semiarid soils of South-Central Montana Climatic implications of alternating clay and carbonate formation in semiarid soils of South-Central Montana
Evidence for climatic change is found in petrographic thin sections from soils formed on glaciofluvial deposits of Rock Creek and the lower Clarks Fork, Montana. These soils, presently in a semiarid climate, range from late Pliocene to Holocene in age, and have undergone periodic fluctuations in soil moisture caused by climatic changes. In the lower parts of soil B horizons, accretion of...
Authors
M.C. Reheis
Non-USGS Publications**
Reheis, M.J., 1975, Source, transportation, and deposition of debris on Arapaho Glacier, Front Range, Colorado, USA: Journal of Glaciology, v. 14, p. 407-420.
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
Filter Total Items: 17
Science and Products
Filter Total Items: 95
Influence of climate and eolian dust on the major-element chemistry and clay mineralogy of soils in the northern Bighorn basin, U.S.A. Influence of climate and eolian dust on the major-element chemistry and clay mineralogy of soils in the northern Bighorn basin, U.S.A.
Soil chronosequences in the northern Bighorn basin permit the study of chronologic changes in the major-element chemistry and clay mineralogy of soils formed in different climates. Two chronosequences along Rock Creek in south-central Montana formed on granitic alluvium in humid and semiarid climates over the past two million years. A chronosequence at the Kane fans in north-central...
Authors
Marith C. Reheis
Development rates of Late Quaternary soils, Silver Lake playa, California Development rates of Late Quaternary soils, Silver Lake playa, California
Soils formed on alluvial fan deposits that range in age from about 35 000 to 200 yr BP near Silver Lake playa in the Mojave Desert permit study of the rates of soil development in an arid, hyperthermic climate. Field-described properties of soils were quantified and analyzed using a soil development index that combines properties and horizon thicknesses. We compared the variability in...
Authors
M.C. Reheis, J.W. Harden, Leslie D. McFadden, Ralph R. Shroba
Pedogenic replacement of aluminosilicate grains by CaCO3 in Ustollic Haplargids, south-central Montana, U.S.A. Pedogenic replacement of aluminosilicate grains by CaCO3 in Ustollic Haplargids, south-central Montana, U.S.A.
A chronosequence of calcic soils formed on granitic glaciofluvial terrace deposits of Rock Creek and the Clarks Fork in south-central Montana shows progressive replacement of aluminosilicate parent-material grains by calcium-magnesium carbonate. The terraces range from late Pliocene to Holocene in age as dated by tephrochronology, correlation, and stream incision rates. Replacement is...
Authors
Marith C. Reheis
Gypsic soils on the Kane alluvial fans, Big Horn County, Wyoming Gypsic soils on the Kane alluvial fans, Big Horn County, Wyoming
No abstract available.
Authors
Marith C. Reheis
Climatic implications of alternating clay and carbonate formation in semiarid soils of South-Central Montana Climatic implications of alternating clay and carbonate formation in semiarid soils of South-Central Montana
Evidence for climatic change is found in petrographic thin sections from soils formed on glaciofluvial deposits of Rock Creek and the lower Clarks Fork, Montana. These soils, presently in a semiarid climate, range from late Pliocene to Holocene in age, and have undergone periodic fluctuations in soil moisture caused by climatic changes. In the lower parts of soil B horizons, accretion of...
Authors
M.C. Reheis
Non-USGS Publications**
Reheis, M.J., 1975, Source, transportation, and deposition of debris on Arapaho Glacier, Front Range, Colorado, USA: Journal of Glaciology, v. 14, p. 407-420.
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
Filter Total Items: 17