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Abstract
An intensive hydrologic investigation of the North Fork Bens Creek Watershed on Laurel Hill in southwestern Pennsylvania was made during 1984-85. Precipitation was sampled weekly, and stream water was sampled monthly and during selected storms for discharge and chemical composition. The watershed is underlain by sandstone and sandy shale consisting of quartz, feldspar, muscovite, chlorite, calcite, and kaolinite. Watershed chemical flux for the sum of Ca++, Mg++, Na+, and K+ shows that solutes from wet deposition account for 19 to 21 percent of the load in runoff from the watershed. Cation exchange and weathering account for the net changes in the chemistry of streamflow. Alteration of orthoclase, muscovite, chlorite, and albite to kaolinite accounts for 36 percent of the neutralization of H+ resulting from precipitation input and carbonic-acid weathering. Dissolution of calcite accounts for 34 percent of H+ neutralization. Dissolution of aluminum-bearing minerals in the soil matrix accounts for 25 percent of H+ neutralization.
| Publication type | Conference Paper |
|---|---|
| Publication Subtype | Conference Paper |
| Title | Geochemical mass-balance in a small forested watershed in southwestern Pennsylvania |
| ISBN | 0872628116 |
| Year Published | 1991 |
| Language | English |
| Publisher | Publ by ASCE |
| Publisher location | New York, NY, United States |
| First page | 516 |
| Last page | 523 |
| Conference Title | Proceedings of the 1991 National Conference on Irrigation and Drainage |
| Conference Location | Honolulu, HI, USA |
| Conference Date | 22 July 1991 through 26 July 1991 |
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