Laurence G Miller (Former Employee)
Science and Products
Filter Total Items: 55
Effects of glacial meltwater inflows and moat freezing on mixing in an ice-covered antarctic lake as interpreted from stable isotope and tritium distributions Effects of glacial meltwater inflows and moat freezing on mixing in an ice-covered antarctic lake as interpreted from stable isotope and tritium distributions
Perennially ice-covered lakes in the McMurdo Dry Valleys have risen several meters over the past two decades due to climatic warming and increased glacial meltwater inflow. To elucidate the hydrologic responses to changing climate and the effects on lake mixing processes we measured the stable isotope (??18O and ??D) and tritium concentrations of water and ice samples collected in the...
Authors
L.G. Miller, G. R. Aiken
Benthic processes in San Francisco Bay: the role of organic inputs and bioturbation Benthic processes in San Francisco Bay: the role of organic inputs and bioturbation
No abstract available.
Authors
J. Caffrey, D. Hammond, J. Kuwabara, L. Miller, R. Twilley
Methylmercury oxidative degradation potentials in contaminated and pristine sediments of the Carson River, Nevada Methylmercury oxidative degradation potentials in contaminated and pristine sediments of the Carson River, Nevada
Sediments from mercury-contaminated and uncontaminated reaches of the Carson River, Nevada, were assayed for sulfate reduction, methanogenesis, denitrification, and monomethylmercury (MeHg) degradation. Demethylation of [14C]MeHg was detected at all sites as indicated by the formation of 14CO2 and 14CH4. Oxidative demethylation was indicated by the formation of 14CO2 and was present at...
Authors
R.S. Oremland, L.G. Miller, P. Dowdle, T. Connell, T. Barkay
A comparison of two nitrification inhibitors used to measure nitrification rates in estuarine sediments A comparison of two nitrification inhibitors used to measure nitrification rates in estuarine sediments
Nitrification rates were measured using intact sediment cores from South San Francisco Bay and two different nitrification inhibitors: acetylene and methyl fluoride. Sediment oxygen consumption and ammonium and nitrate fluxes were also measured in these cores. Four experiments were conducted in the spring, and one in the fall of 1993. There was no significant difference in nitrification...
Authors
J.M. Caffrey, L.G. Miller
Degradation of methyl bromide in anaerobic sediments Degradation of methyl bromide in anaerobic sediments
No abstract available.
Authors
R.S. Oremland, L.G. Miller, F.E. Strohmaler
Degradation of methyl bromide by methanotrophic bacteria in cell suspensions and soils Degradation of methyl bromide by methanotrophic bacteria in cell suspensions and soils
Cell suspensions of Methylococcus capsulatus mineralized methyl bromide (MeBr), as evidenced by its removal from the gas phase, the quantitative recovery of Br- in the spent medium, and the production of 14CO2 from [14C]MeBr. Methyl fluoride (MeF) inhibited oxidation of methane as well as that of [14C]MeBr. The rate of MeBr consumption by cells varied inversely with the supply of methane...
Authors
R.S. Oremland, L.G. Miller, C.W. Culbertson, T.L. Connell, L. Jahnke
Science and Products
Filter Total Items: 55
Effects of glacial meltwater inflows and moat freezing on mixing in an ice-covered antarctic lake as interpreted from stable isotope and tritium distributions Effects of glacial meltwater inflows and moat freezing on mixing in an ice-covered antarctic lake as interpreted from stable isotope and tritium distributions
Perennially ice-covered lakes in the McMurdo Dry Valleys have risen several meters over the past two decades due to climatic warming and increased glacial meltwater inflow. To elucidate the hydrologic responses to changing climate and the effects on lake mixing processes we measured the stable isotope (??18O and ??D) and tritium concentrations of water and ice samples collected in the...
Authors
L.G. Miller, G. R. Aiken
Benthic processes in San Francisco Bay: the role of organic inputs and bioturbation Benthic processes in San Francisco Bay: the role of organic inputs and bioturbation
No abstract available.
Authors
J. Caffrey, D. Hammond, J. Kuwabara, L. Miller, R. Twilley
Methylmercury oxidative degradation potentials in contaminated and pristine sediments of the Carson River, Nevada Methylmercury oxidative degradation potentials in contaminated and pristine sediments of the Carson River, Nevada
Sediments from mercury-contaminated and uncontaminated reaches of the Carson River, Nevada, were assayed for sulfate reduction, methanogenesis, denitrification, and monomethylmercury (MeHg) degradation. Demethylation of [14C]MeHg was detected at all sites as indicated by the formation of 14CO2 and 14CH4. Oxidative demethylation was indicated by the formation of 14CO2 and was present at...
Authors
R.S. Oremland, L.G. Miller, P. Dowdle, T. Connell, T. Barkay
A comparison of two nitrification inhibitors used to measure nitrification rates in estuarine sediments A comparison of two nitrification inhibitors used to measure nitrification rates in estuarine sediments
Nitrification rates were measured using intact sediment cores from South San Francisco Bay and two different nitrification inhibitors: acetylene and methyl fluoride. Sediment oxygen consumption and ammonium and nitrate fluxes were also measured in these cores. Four experiments were conducted in the spring, and one in the fall of 1993. There was no significant difference in nitrification...
Authors
J.M. Caffrey, L.G. Miller
Degradation of methyl bromide in anaerobic sediments Degradation of methyl bromide in anaerobic sediments
No abstract available.
Authors
R.S. Oremland, L.G. Miller, F.E. Strohmaler
Degradation of methyl bromide by methanotrophic bacteria in cell suspensions and soils Degradation of methyl bromide by methanotrophic bacteria in cell suspensions and soils
Cell suspensions of Methylococcus capsulatus mineralized methyl bromide (MeBr), as evidenced by its removal from the gas phase, the quantitative recovery of Br- in the spent medium, and the production of 14CO2 from [14C]MeBr. Methyl fluoride (MeF) inhibited oxidation of methane as well as that of [14C]MeBr. The rate of MeBr consumption by cells varied inversely with the supply of methane...
Authors
R.S. Oremland, L.G. Miller, C.W. Culbertson, T.L. Connell, L. Jahnke