Leon R Follmer
Biographic Data
| ID | 5637934 |
|---|---|
| NAME | Leon R Follmer |
| GIVEN NAMES | Leon R |
| FAMILY NAME | Follmer |
| SIGNATURE | FOLLMER L R |
| AFFILIATIONS | United States Geological Survey |
| VERIFIED | No |
| TOTAL WORKS | 5 |
| TOTAL CITATIONS | 0 |
| WORKS AS AUTHOR | 5 |
| WORKS AS EDITOR | 0 |
| FIRST PUBLICATION YEAR | 1989 |
| LATEST PUBLICATION YEAR | 1998 |
| H-INDEX | 0 |
Magnetic Susceptibility and Mineral Zonations Controlled by Provenance in Loess along the Illinois and Central Mississippi River Valleys
Magnetic susceptibility (MS) patterns have proven useful for regional stratigraphic correlations of zones within thick, oxidized Peoria and Roxana Silts along the Illinois and Central Mississippi River valleys for more than 350 km. Variations in MS of C horizon loess are controlled by silt-sized magnetite content and are interpreted to reflect changes in sediment provenance due to fluctuations of the Superior and Lake Michigan glacier lobes and t…
A polygenetic model for pedostratigraphic units in the Chinese Loess Plateau region
Climatic trend and habitat variation based on oxygen and carbon isotopes in paleosols from Liujiapo, Shaanxi, China
Paleosol Stable Isotope Evidence for Early Hominid Occupation of East Asian Temperate Environments
Hominids left Africa and occupied mainland Asia by 1.8 myr ago. About 1.15 myr ago Homo erectus and an associated Stegodon–Ailuropoda fauna migrated from subtropical China across the Qinling Mountains into the temperate Loess Plateau. This migration may be an evolutionary milestone in human adaptability because it may represent the first occupation of a nontropical environment. Loess–paleosol stable isotope ratios from the last interglacial–glaci…
Source and Origin of Roxana Silt and Middle Wisconsinan Midcontinent Glacial Activity
Thick Roxana Silt (middle Wisconsinan) in central and southwestern Illinois traditionally has been interpreted as loess derived from valley-train deposits in the ancient Mississippi River valley. Winters et al. (H. A. Winters, J. J. Alford, and R. L. Rieck, Quaternary Research 29, 25–35, 1988) recently suggested that the Roxana was not directly related to glacial activity, but was derived from sediment produced by increased shoreline and spillway…
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Source and Origin of Roxana Silt and Middle Wisconsinan Midcontinent Glacial Activity
Thick Roxana Silt (middle Wisconsinan) in central and southwestern Illinois traditionally has been interpreted as loess derived from valley-train deposits in the ancient Mississippi River valley. Winters et al. (H. A. Winters, J. J. Alford, and R. L. Rieck, Quaternary Research 29, 25–35, 1988) recently suggested that the Roxana was not directly related to glacial activity, but was derived from sediment produced by increased shoreline and spillway…
Paleosol Stable Isotope Evidence for Early Hominid Occupation of East Asian Temperate Environments
Hominids left Africa and occupied mainland Asia by 1.8 myr ago. About 1.15 myr ago Homo erectus and an associated Stegodon–Ailuropoda fauna migrated from subtropical China across the Qinling Mountains into the temperate Loess Plateau. This migration may be an evolutionary milestone in human adaptability because it may represent the first occupation of a nontropical environment. Loess–paleosol stable isotope ratios from the last interglacial–glaci…
Magnetic Susceptibility and Mineral Zonations Controlled by Provenance in Loess along the Illinois and Central Mississippi River Valleys
Magnetic susceptibility (MS) patterns have proven useful for regional stratigraphic correlations of zones within thick, oxidized Peoria and Roxana Silts along the Illinois and Central Mississippi River valleys for more than 350 km. Variations in MS of C horizon loess are controlled by silt-sized magnetite content and are interpreted to reflect changes in sediment provenance due to fluctuations of the Superior and Lake Michigan glacier lobes and t…
A polygenetic model for pedostratigraphic units in the Chinese Loess Plateau region
Climatic trend and habitat variation based on oxygen and carbon isotopes in paleosols from Liujiapo, Shaanxi, China
Loess (5 works) · Geology and Paleoclimatology Research (4 works) · Archaeology (3 works) · Geochemistry (3 works) · Geography (3 works) · Geology (3 works) · Geomorphology (3 works) · Paleontology (3 works) · Pleistocene-Era Hominins and Archaeology (3 works) · Biology (2 works)