Sagehen Creek Field Station

23 Jul, 09 AM - 27 Jul, 02 AM

Accurate estimations of chemical weathering rates are essential for understanding global geochemical cycling. In addition, weathering reactions provide a natural means of neutralizing acidity from precipitation. A discrepancy exists between estimates of chemical weathering rates produced by field investigations of soils and catchments and rates produced by laboratory studies in which rates determined from laboratory studies are up to four orders of magnitude faster than those predicted by field studies. We propose a new method for determining chemical weathering rates in the field which will provide a basis for addressing this discrepancy. Our method will use the chemistry of spring waters, chemical mass balance calculations, and geochemical tracer ages determined with chlorofluorocarbon (CFC) and tritium/3He to estimate chemical weathering rates. The rates determined using springs will produce a link between field and laboratory results by providing excellent chronology lacking in many field studies. In addition, consideration of the natural variability of minerals missing from many laboratory studies will be addressed by using systems existing in nature.

Visit #1432 @Sagehen Creek Field Station

Approved

Under Project # 1195 | Research

Geochemistry of Springs

faculty - University of California, Santa Barbara

Reservation Members(s)

Jordan Clark Jul 23 - 27, 2003 (5 days)
Jordan Clark Jul 23 - 27, 2003 (5 days)
Jordan Clark Jul 23 - 27, 2003 (5 days)
Jordan Clark Jul 23 - 27, 2003 (5 days)

Reserve Resources(s) | Create Invoice

Johnson Cabin (Upper Camp) 4 Jul 23 - 27, 2003
North Cabin (Upper Camp) 4 Jul 23 - 27, 2003