Index Catalog // ScholarsArchive@OSU

Development of a “smart” tracer for the assessment of microbiological activity and sediment-water interaction in natural waters: The resazurin-resorufin system

Creator:: Haggerty, Roy, Argerich, Alba, and Marti, Eugenia
Abstract:: A “smart” tracer is a tracer that provides, directly or through measurement of its concentration or in combination with another compound, at least one “bit” more of information about the environment through which it travels than a conservative tracer. In this study we propose and present the chemical compound resazurin...
Resource Type:: Article
Full Text:: :10.1021/ie0613265. Clesceri, L. S., A. E. Greenberg, and E. D. Eaton (1999), Standard Methods for the

Resazurin as a “smart” tracer for quantifying metabolically active transient storage in stream ecosystems

Creator:: Haggerty, Roy, Martí, Eugénia, Argerich, Alba, von Schiller, Daniel, and Grimm, Nancy B.
Abstract:: We propose the experimental use of resazurin (Raz) and develop a metabolically active transient storage (MATS) model to include processes that may provide additional information on transient storage from a biogeochemical perspective in stream ecosystems. Raz is a phenoxazine compound that reduces irreversibly to resorufin (Rru) in the presence of...
Resource Type:: Article

Observing biogeochemical cycles at global scales with profiling floats and gliders: Prospects for a global array

Creator:: Johnson, Kenneth S., Berelson, William M., Boss, Emmanuel S., Chase, Zanna, Claustre, Herve, Emerson, Steven R., Gruber, Nicolas, Kortzinger, Arne, Perry, Mary Jane, and Riser, Stephen C.
Abstract:: Chemical and biological sensor technologies have advanced rapidly in the past five years. Sensors that require low power and operate for multiple years are now available for oxygen, nitrate, and a variety of bio-optional properties that serve as proxies for important components of the carbon cycle (e.g., particulate organic carbon)....
Resource Type:: Article
Full Text:: :623–640, doi:10.1021/cr050354e. Körtzinger, A., J. Schimanski, U. Send, and D. Wallace. 2004. The

Effective Darcy-scale contact angles in porous media imbibing solutions of various surface tensions

Creator:: Weisbrod, Noam, McGinnis, Thomas, Rockhold, Mark L., Niemet, Michael R., and Selker, John S.
Abstract:: Surface tensions of high-salinity solutions are significantly different from those of pure water. Our objective was to develop and test a methodology to determine whether these surface tension effects predictably alter imbibition into dry and moist porous media. Static and dynamic experiments were performed using four grades of quartz sand...
Resource Type:: Article
Full Text:: droplets on porous surfaces, Langmuir, 18, 2980–2984, doi:10.1021/la0117810. Daniel, R. C., and J. C. Berg

Geological and geochemical contraints on the isotopic composition of interstitial waters from the Hydrate Ridge region, Cascadia Continental margin

Creator:: Tomaru, A. M., Matsumoto, R., Torres, Marta E., and Borowski, Walter S.
Abstract:: The isotopic compositions of interstitial waters collected from Hydrate Ridge during Ocean Drilling Program Leg 204 were measured to evaluate the fluid evolution of this accretionary prism. At shallow depths, the dissolved Cl- concentrations and δD and δ¹⁸O values of the interstitial water reflect changes in the salinity and the...
Resource Type:: Article
Full Text:: . Anal. Chem., 68:4414–4417. doi:10.1021/ac9606766 Goldfinger, C., Kulm, L.D., Yeats, R.S., McNeill, L

Environmental temperature sensing using Raman spectra DTS fiber-optic methods

Creator:: Tyler, Scott W., Selker, John S., Hausner, Mark B., Hatch, Christine E., Torgersen, Thomas, Thodal, Carl E., and Schladow, S. Geoffrey
Abstract:: Raman spectra distributed temperature sensing (DTS) by fiber-optic cables has recently shown considerable promise for the measuring and monitoring of surface and near-surface hydrologic processes such as groundwater–surface water interaction, borehole circulation, snow hydrology, soil moisture studies, and land surface energy exchanges. DTS systems uniquely provide the opportunity to monitor...
Resource Type:: Article

Data report : trace element, Sr isotope, and Ge/SI composition of fluid and sediments in ridge-flank low-temperature hydrothermal environments

Creator:: Hulme, Samuel M., Wheat, C. Geoffrey, Coggon, Rosalind M., and McManus, James
Abstract:: The data presented in this report demonstrate significant improvements in the ability to constrain trace element and Sr isotopic concentrations in sediments overlying ridge-flank hydrothermal systems. Improved sampling methods orchestrated by the Integrated Ocean Drilling Program (i.e., advanced piston coring and anoxic sample processing) enabled the collection of reactive pore...
Resource Type:: Article
Full Text:: - hydroxyquinoline functional group. Anal. Chem., 58(14):3031–3035. doi:10.1021/ac00127a029 McManus, J., Berelson

Molybdenum behavior during early diagenesis: Insights from Mo isotopes

Creator:: Poulson Brucker, Rebecca L., McManus, James, Severmann, Silke, and Berelson, William M.
Abstract:: We present molybdenum isotope and concentration data from 14 sites in the eastern Pacific from the central California to the Peru margin. The environments studied have been chosen to represent a broad range in oxidation-reduction (redox) potential, which provide a framework for the behavior of this redox-sensitive element. Manganese-rich hemipelagic...
Resource Type:: Article

Methods for colloid transport visualization in pore networks

Creator:: Ochiai, Naoyuki, Kraft, Erika L., and Selker, John S.
Abstract:: Prediction of colloid transport in the subsurface is relevant to researchers in a variety of fields such as contaminant transport, wastewater treatment, and bioremediation. Investigations have traditionally relied on column studies whereby mechanistic inferences must be drawn on the basis of colloid behavior at the outlet. Over the past decade,...
Resource Type:: Article

Interlaboratory comparison study of calibration standards for foraminiferal Mg/Ca thermometry

Creator:: Greaves, M., Caillon, N., Rebaubier, H., Bartoli, G., Boharty, S., Cacho, I., Clarke, L., Cooper, M., Daunt, C., Delaney, M., deMenocal, P., Dutton, A., Eggins, S., Elderfield, H., Garbe-Schoenberg, D., Goddard, E., Green, D., Groeneveld, J., Hastings, D., Hathorne, E., Kimoto, K., Klinkhammer, Gary P., Labeyrie, L., Lea, D. W., Marchitto, T., Martinez-Boti, M. A., Mortyn, P. G., Ni, Y., Nuernberg, D., Paradis, G., Pena, L., Quinn, T., Rosenthal, Y., Russell, A., Sagawa, T., Sosdian, S., L., Stott, Tachikawa, K., Tappa, E., Thunell, R., and Wilson, P. A.
Abstract:: An interlaboratory study of Mg/Ca and Sr/Ca ratios in three commercially available carbonate reference materials (BAM RS3, CMSI 1767, and ECRM 752-1) was performed with the participation of 25 laboratories that determine foraminiferal Mg/Ca ratios worldwide. These reference materials containing Mg/Ca in the range of foraminiferal calcite (0.8 mmol/mol to...
Resource Type:: Article

ScholarsArchive@OSU

Development of a “smart” tracer for the assessment of microbiological activity and sediment-water interaction in natural waters: The resazurin-resorufin system

Resazurin as a “smart” tracer for quantifying metabolically active transient storage in stream ecosystems

Observing biogeochemical cycles at global scales with profiling floats and gliders: Prospects for a global array

Effective Darcy-scale contact angles in porous media imbibing solutions of various surface tensions

Geological and geochemical contraints on the isotopic composition of interstitial waters from the Hydrate Ridge region, Cascadia Continental margin

Environmental temperature sensing using Raman spectra DTS fiber-optic methods

Data report : trace element, Sr isotope, and Ge/SI composition of fluid and sediments in ridge-flank low-temperature hydrothermal environments

Molybdenum behavior during early diagenesis: Insights from Mo isotopes

Methods for colloid transport visualization in pore networks

Interlaboratory comparison study of calibration standards for foraminiferal Mg/Ca thermometry

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