George R Hallberg
Biographic Data
| ID | 6375403 |
|---|---|
| NAME | George R Hallberg |
| GIVEN NAMES | George R |
| FAMILY NAME | Hallberg |
| SIGNATURE | HALLBERG G R |
| AFFILIATIONS | United States Geological Survey |
| VERIFIED | No |
| TOTAL WORKS | 5 |
| TOTAL CITATIONS | 2 |
| WORKS AS AUTHOR | 5 |
| WORKS AS EDITOR | 0 |
| FIRST PUBLICATION YEAR | 1979 |
| LATEST PUBLICATION YEAR | 1994 |
| H-INDEX | 1 |
Quaternary Geologic Map of the Platte River 4 Degrees x 6 Degrees Quadrangle, United States
The Quaternary Geologic Map of the Platte River 4 degree x 6 degree Quadrangle was mapped as part of the Quaternary Geologic Atlas of the United States. The atlas was begun as an effort to depict the areal distribution of surficial geologic deposits and other materials that accumulated or formed during the past 2+ million years, the period that includes all activities of the human species. These materials are at the surface of the earth. They mak…
The nitrate contamination of private well water in Iowa
The State-Wide Rural Well-Water Survey was conducted between April 1988 and June 1989. About 18% of Iowa's private, rural drinking-water wells contain nitrate above the recommended health advisory level (levels of NO3-N greater than 10 mg/L); 37% of the wells have levels greater than 3 mg/L, typically considered indicative of anthropogenic pollution. Thirty-five percent of wells less than 15 m deep exceed the health advisory level, and the mean c…
The impacts of agricultural chemicals on ground water quality
Pleistocene stratigraphy in east-central Iowa
Comment on “Pacific Pleistocene Paleoclimatic Stratigraphies
Comment on “Pacific Pleistocene Paleoclimatic Stratigraphies
Pleistocene stratigraphy in east-central Iowa
The impacts of agricultural chemicals on ground water quality
The nitrate contamination of private well water in Iowa
The State-Wide Rural Well-Water Survey was conducted between April 1988 and June 1989. About 18% of Iowa's private, rural drinking-water wells contain nitrate above the recommended health advisory level (levels of NO3-N greater than 10 mg/L); 37% of the wells have levels greater than 3 mg/L, typically considered indicative of anthropogenic pollution. Thirty-five percent of wells less than 15 m deep exceed the health advisory level, and the mean c…
Quaternary Geologic Map of the Platte River 4 Degrees x 6 Degrees Quadrangle, United States
The Quaternary Geologic Map of the Platte River 4 degree x 6 degree Quadrangle was mapped as part of the Quaternary Geologic Atlas of the United States. The atlas was begun as an effort to depict the areal distribution of surficial geologic deposits and other materials that accumulated or formed during the past 2+ million years, the period that includes all activities of the human species. These materials are at the surface of the earth. They mak…
Geography (3 works) · Geology (3 works) · Geology and Paleoclimatology Research (3 works) · Archaeology (2 works) · Archaeology and Natural History (2 works) · Ecology (2 works) · Environmental Science (2 works) · Geology (2 works) · Groundwater (2 works) · Nitrate (2 works)