Christopher Fuller (Former Employee)
Science and Products
Filter Total Items: 85
Influence of coupling of sorption and photosynthetic processes on trace element cycles in natural waters Influence of coupling of sorption and photosynthetic processes on trace element cycles in natural waters
Chemical and biological processes have important roles in the transport and cycling of trace elements in natural waters, but their complex interactions are often not well understood. Trace-element concentrations may, for example, be controlled by adsorption-desorption reactions at mineral surfaces, with the equilibrium strongly influenced by pH. Variations in pH due to photosynthetic...
Authors
C. C. Fuller, J.A. Davis
Processes and kinetics of Cd2+ sorption by a calcareous aquifer sand Processes and kinetics of Cd2+ sorption by a calcareous aquifer sand
The rate of Cd2+ sorption by a calcareous aquifer sand was characterized by two reaction steps, with the first step reaching completion in 24 hours. The second step proceeded at a slow and nearly constant rate for at least seven days. The first step includes a fast adsorption reaction which is followed by diffusive transport into either a disordered surface film of hydrated calcium...
Authors
C. C. Fuller, J.A. Davis
A model for trace metal sorption processes at the calcite surface: Adsorption of Cd2+ and subsequent solid solution formation A model for trace metal sorption processes at the calcite surface: Adsorption of Cd2+ and subsequent solid solution formation
The rate of Cd2+ sorption by calcite was determined as a function of pH and Mg2+ in aqueous solutions saturated with respect to calcite but undersaturated with respect to CdCO3. The sorption is characterized by two reaction steps, with the first reaching completion within 24 hours. The second step proceeded at a slow and nearly constant rate for at least 7 days. The rate of calcite
Authors
J.A. Davis, C. C. Fuller, A.D. Cook
Sediment accumulation in San Leandro Bay, Alameda County, California, during the 20th century -- A preliminary report Sediment accumulation in San Leandro Bay, Alameda County, California, during the 20th century -- A preliminary report
Major changes made in the configuration of San Leandro Bay, Alameda County, California, during the 20th century have caused rapid sedimentation within parts of the Bay. Opening of the Oakland tidal channel and removal of 97% of the marshlands formerly surrounding the Bay have decreased tidal velocities and volumes. Marshland removal has decreased the tidal prism by about 25%. Comparison...
Authors
K.M. Nolan, C. C. Fuller
Benthic fluxes in San Francisco Bay Benthic fluxes in San Francisco Bay
Measurements of benthic fluxes have been made on four occasions between February 1980 and February 1981 at a channel station and a shoal station in South San Francisco Bay, using in situ flux chambers. On each occasion replicate measurements of easily measured substances such as radon, oxygen, ammonia, and silica showed a variability (??1??) of 30% or more over distances of a few meters...
Authors
Douglas E. Hammond, C. Fuller, D. Harmon, Blayne Hartman, M. Korosec, L.G. Miller, R. Rea, S. Warren, W. Berelson, S.W. Hager
The fallout rate of PB-210 on the western coast of the United States The fallout rate of PB-210 on the western coast of the United States
The deposition rate of atmospheric Pb-210 has been measured during a one year period using plastic funnels as collectors. Observed rates were 0.15 dpm cm−2 yr−1 at a site in Palo Alto, California and 0.21 dpm cm−2 yr−1 at a site in Los Angeles. The Palo Alto value agrees well with a long-term average of 0.14 dpm cm−2 yr−1, obtained from a nearby salt marsh core. These rates are only one...
Authors
Christopher Fuller, Douglas E. Hammond
Science and Products
Filter Total Items: 85
Influence of coupling of sorption and photosynthetic processes on trace element cycles in natural waters Influence of coupling of sorption and photosynthetic processes on trace element cycles in natural waters
Chemical and biological processes have important roles in the transport and cycling of trace elements in natural waters, but their complex interactions are often not well understood. Trace-element concentrations may, for example, be controlled by adsorption-desorption reactions at mineral surfaces, with the equilibrium strongly influenced by pH. Variations in pH due to photosynthetic...
Authors
C. C. Fuller, J.A. Davis
Processes and kinetics of Cd2+ sorption by a calcareous aquifer sand Processes and kinetics of Cd2+ sorption by a calcareous aquifer sand
The rate of Cd2+ sorption by a calcareous aquifer sand was characterized by two reaction steps, with the first step reaching completion in 24 hours. The second step proceeded at a slow and nearly constant rate for at least seven days. The first step includes a fast adsorption reaction which is followed by diffusive transport into either a disordered surface film of hydrated calcium...
Authors
C. C. Fuller, J.A. Davis
A model for trace metal sorption processes at the calcite surface: Adsorption of Cd2+ and subsequent solid solution formation A model for trace metal sorption processes at the calcite surface: Adsorption of Cd2+ and subsequent solid solution formation
The rate of Cd2+ sorption by calcite was determined as a function of pH and Mg2+ in aqueous solutions saturated with respect to calcite but undersaturated with respect to CdCO3. The sorption is characterized by two reaction steps, with the first reaching completion within 24 hours. The second step proceeded at a slow and nearly constant rate for at least 7 days. The rate of calcite
Authors
J.A. Davis, C. C. Fuller, A.D. Cook
Sediment accumulation in San Leandro Bay, Alameda County, California, during the 20th century -- A preliminary report Sediment accumulation in San Leandro Bay, Alameda County, California, during the 20th century -- A preliminary report
Major changes made in the configuration of San Leandro Bay, Alameda County, California, during the 20th century have caused rapid sedimentation within parts of the Bay. Opening of the Oakland tidal channel and removal of 97% of the marshlands formerly surrounding the Bay have decreased tidal velocities and volumes. Marshland removal has decreased the tidal prism by about 25%. Comparison...
Authors
K.M. Nolan, C. C. Fuller
Benthic fluxes in San Francisco Bay Benthic fluxes in San Francisco Bay
Measurements of benthic fluxes have been made on four occasions between February 1980 and February 1981 at a channel station and a shoal station in South San Francisco Bay, using in situ flux chambers. On each occasion replicate measurements of easily measured substances such as radon, oxygen, ammonia, and silica showed a variability (??1??) of 30% or more over distances of a few meters...
Authors
Douglas E. Hammond, C. Fuller, D. Harmon, Blayne Hartman, M. Korosec, L.G. Miller, R. Rea, S. Warren, W. Berelson, S.W. Hager
The fallout rate of PB-210 on the western coast of the United States The fallout rate of PB-210 on the western coast of the United States
The deposition rate of atmospheric Pb-210 has been measured during a one year period using plastic funnels as collectors. Observed rates were 0.15 dpm cm−2 yr−1 at a site in Palo Alto, California and 0.21 dpm cm−2 yr−1 at a site in Los Angeles. The Palo Alto value agrees well with a long-term average of 0.14 dpm cm−2 yr−1, obtained from a nearby salt marsh core. These rates are only one...
Authors
Christopher Fuller, Douglas E. Hammond