471 research outputs found
i Table of Contents
No full textThe contents of this report (including figures and tables) document the work of the following licensed Texas geoscientists: Bridget Scanlon, Ph.D., P.G. No. 1645 Dr. Scanlon was responsible for the introductory material and parts of the methods and discussion. The seal appearing on this document was authorize
In a nutshell : the book of charm, by far the best book the author has written /
No full textAlso available online http://nla.gov.au/nla.aus-vn449757; FERG copy from Ferguson First World War, 1914-1919 pamphlet collection
Datasets associated with investigating the potential for beneficial reuse of produced water from oil and gas extraction outside of the energy sector
No full textThe data are associated with paper titled "Can we beneficially reuse produced water from oi and gas extraction in the U.S.?" and include data on water volumes and water quality related to the major unconventional oil and gas plays in the U.S.. The data include volumes of water co-produced with oil and gas production, county-level estimates of annual water use volumes by various sectors, including hydraulic fracturing water use, and the quality of produced water
Datasets associated with investigating the potential for beneficial reuse of produced water from oil and gas extraction outside of the energy sector
No full textThe data are associated with paper titled "Can we beneficially reuse produced water from oi and gas extraction in the U.S.?" publish in Science of the Total Environment and include data on water volumes and water quality related to the major unconventional oil and gas plays in the U.S.. The data include volumes of water co-produced with oil and gas production, county-level estimates of annual water use volumes by various sectors, including hydraulic fracturing water use, and the quality of produced water
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Surface fissures in the Hueco Bolson and adjacent basins, West Texas
No full textBureau Publication GC9202 - to purchase a print copy please go to: https://store.beg.utexas.edu/geologic-circulars/520-gc9202.html Research funded by the Texas Low-Level Radioactive Waste Disposal Authority under Interagency Contract Number IAC(90-91)0268Surface fissures have been observed in many desert basins in the western United States. These surface-collapse features are usually discovered after a normally dry surface has been covered with water, either by runoff from intense rainfall, by flooding, or by irrigation. Their sudden appearance attracts the attention of local residents, especially when the fissures render unpaved roads impassable. Collapse features begin as near-surface tension fractures that are enlarged by erosion and piping. Uneroded tension fractures are typically 0.1 to 7.6 cm wide and are filled with fine-grained sediment. Surface-collapse features may coalesce to form fissures, some up to 15 km long. Maximum reported depth of fissures or fractures is 25 m. Most tension fractures have formed where ground water has been pumped and water levels have dropped significantly (30 to 140 m). However, some fractures exist where no substantial pumping has occurred and no corresponding drop in water tables has been recorded. These features may have formed as a result of the lowering of ground water over geologic time. Tensional stress leading to fracture formation may result from differential compaction of unconsolidated sediments over bedrock irregularities or abrupt sedimentary facies boundaries or from desiccation. Seismic activity, although not a prerequisite for formation of collapse features, in some instances may trigger the development of tension fractures. Near-surface tension fractures may remain undetected until they are enlarged by piping and the surface above them collapses. Polygonal and branching patterns of fissures suggest desiccation as a cause of fracture genesis, but this origin remains unproven.
Fissures at the Hueco Bolson study area in western Texas are located on a flat-lying alluvial slope on Cenozoic sediments that fill a small basin in Cretaceous bedrock. The basin is separated from the main part of the Hueco Bolson by the Campo Grande fault. All three fissures at the Hueco Bolson study area are in topographic lows, indicating that overland flow is important to their development. The conditions necessary for piping to occur probably exist in the study area only in topographic lows during and after heavy rains.
Detailed study of fractures reveals that walls of fractures that underlie fissures match across each fracture's midline, evidence of simple tensional separation. These fractures are filled with silty, clayey sediment that contains vertical, clayey laminae, suggesting multiple periods of filling or fracturing or both. Fracture fill conducts water more readily than surrounding sediments, as seen at fissure 1. Low chloride concentrations down to 4.6 m below the surface near this fissure indicate that relatively high moisture fluxes occur there, compared with moisture fluxes in sediments in ephemeral stream channels and on low-lying interfluves. Unlike in fissured areas elsewhere in the desert Southwest, there has been no significant ground-water pumping in the vicinity of the study area. However, four factors have led to lower ground-water levels in the study area over geologic time: incision of the Rio Grande, change to a warmer, drier climate, fault movement on the Campo Grande fault, and preferential drainage of relatively permeable basin fill beneath the study area. These fissures and those that form where ground water has not been pumped are natural geomorphic features of the desert Southwest.Bureau of Economic GeologyUT Librarie
Amarillo National Resource Center for Plutonium
No full textThis report was prepared with the support of the U.S. Department of Energy (DOE) Cooperative Agreement No. DEFC04 -95AL85832. However, any opinions, findings, conclusions, or recommendations expressed herein are those of the author(s) and do not necessarily reflect the views of DOE. This work was conducted through the Amarillo National Resource Center for Plutonium. This page intentionally left blank. ANRCP-1999-14 AMARILLO NATIONAL RESOURCE CENTER FOR PLUTONIUM/ A HIGHER EDUCATION CONSORTIUM A Report on Recharge Monitoring in an Interplaya Setting Bridget R. Scanlon, Robert C. Reedy, and Jinhuo Liang Bureau of Economic Geology The University of Texas at Austin Austin, Texas 78712 Submitted for publication to ANRC Environmental Program March 1999 This page intentionally left blank. i
CUAHSI Cyberseminar: Laurent Longuevergne, Clark Wilson & Bridget Scanlon University of Texas at Austin, 4/16/2010
No full textAttitude-Dependent Reasons. Kolloquium "Meeting the Author" mit Prof. Thomas Scanlon/Harvard University, Universität Zürich, Dezember 2010
No full textThe food-energy-water nexus: Transforming science for society
No full textEmerging interdisciplinary science efforts are providing new understanding of the interdependence of food, energy, and water (FEW) systems. These science advances, in turn, provide critical information for coordinated management to improve the affordability, reliability, and environmental sustainability of FEW systems. Here we describe the current state of the FEW nexus and approaches to managing resource conflicts through reducing demand and increasing supplies, storage, and transport. Despite significant advances within the past decade, there are still many challenges for the scientific community. Key challenges are the need for interdisciplinary science related to the FEW nexus; ground-based monitoring and modeling at local-to-regional scales; incorporating human and institutional behavior in models; partnerships among universities, industry, and government to develop policy relevant data; and systems modeling to evaluate trade-offs associated with FEW decisions
Author Correction:Cation disorder engineering yields AgBiS<sub>2</sub> nanocrystals with enhanced optical absorption for efficient ultrathin solar cells (Nature Photonics, (2022), 16, 3, (235-241), 10.1038/s41566-021-00950-4)
No full textCorrection to: Nature Photonics https://doi.org/10.1038/s41566-021-00950-4, published online 14 February 2022.In the version of this article initially published, the middle initial for David O. Scanlon was missing in the author list. The error has been corrected in the HTML and PDF versions of the article.</p
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