Jim Budahn
Jim Budahn is a Scientist Emeritus with the Geosciences and Environmental Change Science Center
Science and Products
Filter Total Items: 61
Compositions of modern dust and surface sediments in the Desert Southwest, United States Compositions of modern dust and surface sediments in the Desert Southwest, United States
Modern dusts across southwestern United States deserts are compositionally similar to dust-rich Av soil horizons (depths of 0-0.5 cm and 1-4 cm at 35 sites) for common crustal elements but distinctly different for some trace elements. Chemical compositions and magnetic properties of the soil samples are similar among sites relative to dust sources, geographic areas, and lithologic...
Authors
M.C. Reheis, J. R. Budahn, P. J. Lamothe, R. L. Reynolds
Geochemical evidence for African dust and volcanic ash inputs to terra rossa soils on carbonate reef terraces, northern Jamaica, West Indies Geochemical evidence for African dust and volcanic ash inputs to terra rossa soils on carbonate reef terraces, northern Jamaica, West Indies
The origin of red or reddish-brown, clay-rich, "terra rossa" soils on limestone has been debated for decades. A traditional qualitative explanation for their formation has been the accumulation of insoluble residues as the limestone is progressively dissolved over time. However, this mode of formation often requires unrealistic or impossible amounts of carbonate dissolution. Therefore...
Authors
D.R. Muhs, J. R. Budahn
Catalog of Mount St. Helens 2004-2007 dome samples with major- and trace-element chemistry Catalog of Mount St. Helens 2004-2007 dome samples with major- and trace-element chemistry
Sampling and analysis of eruptive products at Mount St. Helens is an integral part of volcano monitoring efforts conducted by the U.S. Geological Survey?s Cascades Volcano Observatory (CVO). The objective of our eruption sampling program is to enable petrological assessments of pre-eruptive magmatic conditions, critical for ascertaining mechanisms for eruption triggering and forecasting...
Authors
Carl R. Thornber, John S. Pallister, Michael C. Rowe, Siobhan McConnell, Trystan M. Herriott, Alison Eckberg, Winston C. Stokes, Diane Johnson Cornelius, Richard M. Conrey, Tammy Hannah, Joseph E. Taggart, Monique Adams, Paul J. Lamothe, James R. Budahn, Charles M. Knaack
Determination of premining geochemical background and delineation of extent of sediment contamination in Blue Creek downstream from Midnite Mine, Stevens County, Washington Determination of premining geochemical background and delineation of extent of sediment contamination in Blue Creek downstream from Midnite Mine, Stevens County, Washington
Geochemical and radionuclide studies of sediment recovered from eight core sites in the Blue Creek flood plain and Blue Creek delta downstream in Lake Roosevelt provided a stratigraphic geochemical record of the contamination from uranium mining at the Midnite Mine. Sediment recovered from cores in a wetland immediately downstream from the mine site as well as from sediment catchments in...
Authors
Stan E. Church, Frederick E. Kirschner, LaDonna M. Choate, Paul J. Lamothe, James R. Budahn, Zoe Ann Brown
Paleoclimatic significance of chemical weathering in loess-derived paleosols of subarctic central Alaska Paleoclimatic significance of chemical weathering in loess-derived paleosols of subarctic central Alaska
Chemical weathering in soils has not been studied extensively in high-latitude regions. Loess sequences with modern soils and paleosols are present in much of subarctic Alaska, and allow an assessment of present and past chemical weathering. Five sections were studied in detail in the Fairbanks, Alaska, area. Paleosols likely date to mid-Pleistocene interglacials, the last interglacial...
Authors
D.R. Muhs, T. A. Ager, G. Skipp, J. Beann, J. Budahn, J. P. McGeehin
Geochemical evidence for airborne dust additions to soils in Channel Islands National Park, California Geochemical evidence for airborne dust additions to soils in Channel Islands National Park, California
There is an increasing awareness that dust plays important roles in climate change, biogeochemical cycles, nutrient supply to ecosystems, and soil formation. In Channel Islands National Park, California, soils are clay-rich Vertisols or Alfisols and Mollisols with vertic properties. The soils are overlain by silt-rich mantles that contrast sharply with the underlying clay-rich horizons...
Authors
D.R. Muhs, J. R. Budahn, D.L. Johnson, M. Reheis, J. Beann, G. Skipp, E. Fisher, J.A. Jones
Science and Products
Filter Total Items: 61
Compositions of modern dust and surface sediments in the Desert Southwest, United States Compositions of modern dust and surface sediments in the Desert Southwest, United States
Modern dusts across southwestern United States deserts are compositionally similar to dust-rich Av soil horizons (depths of 0-0.5 cm and 1-4 cm at 35 sites) for common crustal elements but distinctly different for some trace elements. Chemical compositions and magnetic properties of the soil samples are similar among sites relative to dust sources, geographic areas, and lithologic...
Authors
M.C. Reheis, J. R. Budahn, P. J. Lamothe, R. L. Reynolds
Geochemical evidence for African dust and volcanic ash inputs to terra rossa soils on carbonate reef terraces, northern Jamaica, West Indies Geochemical evidence for African dust and volcanic ash inputs to terra rossa soils on carbonate reef terraces, northern Jamaica, West Indies
The origin of red or reddish-brown, clay-rich, "terra rossa" soils on limestone has been debated for decades. A traditional qualitative explanation for their formation has been the accumulation of insoluble residues as the limestone is progressively dissolved over time. However, this mode of formation often requires unrealistic or impossible amounts of carbonate dissolution. Therefore...
Authors
D.R. Muhs, J. R. Budahn
Catalog of Mount St. Helens 2004-2007 dome samples with major- and trace-element chemistry Catalog of Mount St. Helens 2004-2007 dome samples with major- and trace-element chemistry
Sampling and analysis of eruptive products at Mount St. Helens is an integral part of volcano monitoring efforts conducted by the U.S. Geological Survey?s Cascades Volcano Observatory (CVO). The objective of our eruption sampling program is to enable petrological assessments of pre-eruptive magmatic conditions, critical for ascertaining mechanisms for eruption triggering and forecasting...
Authors
Carl R. Thornber, John S. Pallister, Michael C. Rowe, Siobhan McConnell, Trystan M. Herriott, Alison Eckberg, Winston C. Stokes, Diane Johnson Cornelius, Richard M. Conrey, Tammy Hannah, Joseph E. Taggart, Monique Adams, Paul J. Lamothe, James R. Budahn, Charles M. Knaack
Determination of premining geochemical background and delineation of extent of sediment contamination in Blue Creek downstream from Midnite Mine, Stevens County, Washington Determination of premining geochemical background and delineation of extent of sediment contamination in Blue Creek downstream from Midnite Mine, Stevens County, Washington
Geochemical and radionuclide studies of sediment recovered from eight core sites in the Blue Creek flood plain and Blue Creek delta downstream in Lake Roosevelt provided a stratigraphic geochemical record of the contamination from uranium mining at the Midnite Mine. Sediment recovered from cores in a wetland immediately downstream from the mine site as well as from sediment catchments in...
Authors
Stan E. Church, Frederick E. Kirschner, LaDonna M. Choate, Paul J. Lamothe, James R. Budahn, Zoe Ann Brown
Paleoclimatic significance of chemical weathering in loess-derived paleosols of subarctic central Alaska Paleoclimatic significance of chemical weathering in loess-derived paleosols of subarctic central Alaska
Chemical weathering in soils has not been studied extensively in high-latitude regions. Loess sequences with modern soils and paleosols are present in much of subarctic Alaska, and allow an assessment of present and past chemical weathering. Five sections were studied in detail in the Fairbanks, Alaska, area. Paleosols likely date to mid-Pleistocene interglacials, the last interglacial...
Authors
D.R. Muhs, T. A. Ager, G. Skipp, J. Beann, J. Budahn, J. P. McGeehin
Geochemical evidence for airborne dust additions to soils in Channel Islands National Park, California Geochemical evidence for airborne dust additions to soils in Channel Islands National Park, California
There is an increasing awareness that dust plays important roles in climate change, biogeochemical cycles, nutrient supply to ecosystems, and soil formation. In Channel Islands National Park, California, soils are clay-rich Vertisols or Alfisols and Mollisols with vertic properties. The soils are overlain by silt-rich mantles that contrast sharply with the underlying clay-rich horizons...
Authors
D.R. Muhs, J. R. Budahn, D.L. Johnson, M. Reheis, J. Beann, G. Skipp, E. Fisher, J.A. Jones