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Full-Text Articles in Physical Sciences and Mathematics
Gpr Detection Of Karst And Archaeological Targets Below The Historical Centre Of Merida, Yucatán, Mexico., Luis Barba, Jorge Blancas, Agustin Ortiz, Josep Ligorred
Gpr Detection Of Karst And Archaeological Targets Below The Historical Centre Of Merida, Yucatán, Mexico., Luis Barba, Jorge Blancas, Agustin Ortiz, Josep Ligorred
Studia UBB Geologia
The Historical Center of Merida has been classified as a “zone of high patrimonial value” based on the study of topography and the historical documents that show a long-term occupation, non-interrupted since pre-Columbian times when T’Hó was the great capital of the northern region of the Maya area.
For the local government, rehabilitation of the Historical Center of Merida has been a great priority. Among others, this project includes preservation of archaeological remains (pre-Columbian or colonial) and detection of karstic zones under the city. In order to prevent damage to the patrimony, ground penetrating radar (GPR) surveys were carried out …
Slides: Indian Water Rights, Robert T. Anderson
Slides: Indian Water Rights, Robert T. Anderson
Western Water Law, Policy and Management: Ripples, Currents, and New Channels for Inquiry (Martz Summer Conference, June 3-5)
Presenter: Robert T. Anderson, Native American Law Center, University of Washington Law School
19 slides
Slides: Transboundary Solutions: A Water Trust, Policy, And Environmental Flows For The Colorado River Delta, Jennifer Pitt
Slides: Transboundary Solutions: A Water Trust, Policy, And Environmental Flows For The Colorado River Delta, Jennifer Pitt
Western Water Law, Policy and Management: Ripples, Currents, and New Channels for Inquiry (Martz Summer Conference, June 3-5)
Presenter: Jennifer Pitt, Environmental Defense Fund, Boulder, CO
26 slides
Using Chromium Stable Isotopes To Monitor Chromium Reactive Transport: Oxidation Experiments And Field Studies, Alejandro Villalobos Aragon
Using Chromium Stable Isotopes To Monitor Chromium Reactive Transport: Oxidation Experiments And Field Studies, Alejandro Villalobos Aragon
Open Access Theses & Dissertations
Chromium (Cr) is a common contaminant found at a number of sites globally. Cr sources can be either anthropogenic or natural. Cr occurs in nature in two valences, with Cr(VI) being carcinogenic, more toxic and mobile than Cr(III). Reduction of Cr(VI) to Cr(III) is a common remediation strategy, but monitoring Cr reduction using only concentration and speciation analyses is a difficult endeavor because concentrations can be affected by dilution and advection in addition to reduction. Cr isotopes are fractionated during reduction processes, so monitoring isotopic changes in Cr may be a faster and more effective way to monitor reduction. This …