Earth Sciences Commons^™

Options For Achieving And Maintaining Low Salinity In Agricultural Dams, Tilwin Westrup

Resource management technical reports

No abstract provided.

Modeling Stormwater Pollutant Transport In A Karst Region--Bowling Green, Kentucky, Allison H. Ross

Masters Theses & Specialist Projects

The management of stormwater runoff is a particular challenge for communities in karst regions. Most guidelines for compliance with regulations for stormwater monitoring and mapping pertain to non-karst environments. It can be argued that effective stormwater management is even more essential to karst regions because stormwater receives little or no natural filtration as it is transferred through conduits in the subsurface and the buildup of pollutants underneath can be detrimental to community and environmental health if not effectively mitigated. Because of the limited resources available to determine how stormwater runoff carries potential pollutants across the surface before being transferred to …

Are “Quantitative” Pits Still Necessary At Hubbard Brook?, Chris E. Johnson

Civil and Environmental Engineering - All Scholarship

No abstract provided.

Droughtscape, Summer 2009, Kelly Smith

DroughtScape: Quarterly Newsletter of the National Drought Mitigation Center (2007–2023)

U.S. Drought Monitor Forum, 2009

El Niño Could Bring Wet Winter After Hot Summer

Around the World

Agriculture Hit Hard in California, Texas

Predictable Patterns in Missouri River Basin?

Seeking Low-Flow Effects in Colorado, Southeast

VegDRI Began Coast-to-Coast Coverage in May

Strain Rate Patterns From Dense Gps Networks, Matthias Hackl, Rocco Malservisi, Shimon Wdowinski

School of Geosciences Faculty and Staff Publications

The knowledge of the crustal strain rate tensor provides a description of geodynamic processes such as fault strain accumulation, which is an important parameter for seismic hazard assessment, as well as anthropogenic deformation. In the past two decades, the number of observations and the accuracy of satellite based geodetic measurements like GPS greatly increased, providing measured values of displacements and velocities of points. Here we present a method to obtain the full continuous strain rate tensor from dense GPS networks. The tensorial analysis provides different aspects of deformation, such as the maximum shear strain rate, including its direction, and the …

Grades 4-5 Volume And Capacity, Caitlin Portanova

Science

This is a science lesson for grades four through five on volume and capacity. Through this lesson, students will be able to understand what capacity and volume are and how to measure them, as well as how to distinguish which one they are measuring. The lesson is tiered in three levels based on ability. Within each tier the student will complete a shape contract where they choose tasks based on interest and ability.

Characterization And Quantification Of Ground Heat Flux For Late Season Shallow Snow, Aurele Lamontagne

Boise State University Theses and Dissertations

Increasing populations, rapid land use changes, and climate change in mountainous areas have stressed water resources and reduced available water from snowpacks. In anticipation of warmer temperatures, receding snowlines, and increasing water demands, water managers will need detailed snowmelt energy and water balance information from the margin as transitional snow replaces deeper snowpacks. Patchy shallow snow, found at transitional snow elevations, has a distinct energy balance that includes local advection and short wave radiation penetration of snow less than 10 cm deep. Solar penetration to the soil surface provides a heat source that can be absorbed by the soil and …

Internal Structure And Geochronology Of The Gerrei Unit In The Flumendosa Area, Variscan External Nappe Zone, Sardinia, Italy, Ashley V. Dack

Boise State University Theses and Dissertations

To investigate the stratigraphy and structural evolution of the Variscan Orogen of the External Nappe Zone, Sardinia, Italy, field work and geochronologic analyses were combined to assess both regional and orogen scale issues. Geologic mapping, structural analysis, and sampling in the Flumendosa area coupled with high-precision U-Pb zircon geochronology were used to determine the duration of Ordovician magmatic activity and the structural evolution of the Variscan Orogen.

To constrain the duration of magmatism for the Flumendosa area, U-Pb ID/TIMS zircon analyses were performed on samples from a lower volcanic flow of the Ordovician Volcanic Unit and an upper, syn to …

Reactivity And Chemical Characterization Of Dissolved Organic Matter In An Estuary, Hussain A. Abdulla

OES Theses and Dissertations

This dissertation used Fourier transform infrared spectroscopy (FTIR) and nuclear magnetic resonance spectroscopy (¹³C-NMR) data to quantify the changes of major chemical compound classes in high molecular weight (HMW, >1kDa) DOM isolated along a transect from Great Dismal Swamp through the Elizabeth River/Chesapeake Bay system to the coastal Atlantic Ocean off Virginia, USA. Results show that both carboxylic acids and aromatic compounds are lost along the transect, while amide, and carbohydrate moieties could have a mid-transect source.

Addressing the seasonal and spatial changes in the chemical composition of high molecular weight DOM using C/N ratio and δ^{13 …}

Geologic Storage Of Sour Co2 From A Natural Gas-Processing Plant – A Commercial Demonstration, University Of North Dakota. Energy And Environmental Research Center

EERC Brochures and Fact Sheets

Fact sheet about the Plains CO₂ Reduction (PCOR) and Spectra Energy-led demonstration of carbon capture and storage (CCS) to manage the CO₂ emissions of natural gas processing facilities. Describes the project, research objectives, and intended schedule. [This item is an outdated or superseded version and retained for historical purposes only. It may no longer reflect current information, policies, or practices.]

Paragneiss Zircon Geochronology And Trace Element Geochemistry, North Qaidam Hp/Uhp Terrane, Western China, Chris G. Mattinson, Joseph L. Wooden, Jian-Xin Zhang, D. K. Bird

All Faculty Scholarship for the College of the Sciences

In the southeastern part of the North Qaidam terrane, near Dulan, paragneiss hosts minor peridotite and UHP eclogite. Zircon geochronology and trace element geochemistry of three paragneiss samples (located within a ∼3 km transect) indicates that eclogite-facies metamorphism resulted in variable degrees of zircon growth and recrystallization in the three samples. Inherited zircon core age groups at 1.8 and 2.5 Ga suggest that the protoliths of these rocks may have received sediments from the Yangtze or North China cratons. Mineral inclusions, depletion in HREE, and absence of negative Eu anomalies indicate that zircon U-Pb ages of 431 ± 5 Ma …

Temporal Geophysical Signatures From Contaminant-Mass Remediation, Vukenkeng Che-Alota, Estella A. Atekwana, Eliot A. Atekwana, William August Sauck, D. Dale Werkema

Geosciences and Geological and Petroleum Engineering Faculty Research & Creative Works

We have previously documented changes in bulk electrical conductivity, self-potential (SP), and ground-penetrating-radar (GPR) reflections in a field setting caused by biogeochemical transformations of hydrocarbon-contaminated media. These transformations are associated with hydrocarbon biodegradation. The results of surface geophysical surveys acquired in 1996, 2003, and 2007 document changes in geophysical signatures associated with removing hydrocarbon mass in the contaminated zone. Initial investigations in 1996 showed that relative to background, the contaminated area was characterized by higher bulk electrical conductivity, positive SP anomaly, and attenuated GPR reflections. Repeated surveys in 2003 and 2007 over the contaminated area showed that in 2007, the …

The Effects Of Chronic Mercuric Chloride Ingestion In Female Sprague–Dawley Rats On Fertility And Reproduction, J.C. Heath, Y. Abdelmageed, T.D. Braden, A.C. Nichols, D.A. Steffy

Research, Publications & Creative Work

Thirty-days-old female rats were chronically exposed, for 60 days, to 1or 2 mg/kg/day of mercuric chloride or an equivalent volume of water, via gavage. At 90 days of age they were mated with unexposed males. At approximately day 13 of gestation necropsies were performed on the females. Data were collected on the number of implantations and non-viable implantations in the uterus. No physical signs of Hg intoxication were seen except in weight gain. There were significantly fewer implantations in the high HgCl2 group, with significantly more non-viable implantations in the low and high HgCl2 groups, compared to controls. Lower levels …

Field Evidence Of A Negative Correlation Between Saturated Hydraulic Conductivity And Soil Carbon In A Sandy Soil, Tiejun Wang, David A. Wedin, Vitaly A. Zlotnik

Department of Earth and Atmospheric Sciences: Faculty Publications

Soil organic matter (SOM) is generally assumed to be positively correlated with saturated hydraulic conductivity (KS). However, recent studies of pedotransfer functions suggest a possible negative KS-SOM relationship that still needs independent verification. Our field KS study of sandy soils in a semiarid region provides such in situ evidence of a negative KS-SOM relationship, which is nonlinear and is strongest at the lowest levels of soil carbon (<0.1%). A regression analysis also shows that soil carbon is an important factor for explaining KS in those soils. The likely reason for the observed negative KS-SOM relationship is a reduced wettability caused by SOM, which is believed to outweigh the impacts of any increase in KS caused by soil aggregation. The low SOM content and large particle size of sand may explain the limited effect of SOM on soil aggregation processes in the examined soils.

Markov Chain Estimation Of Avian Seasonal Fecundity, Matthew A. Etterson, Richard S. Bennett, Eric L. Kershner, Jeffery W. Walk

United States Environmental Protection Agency: Publications

Avian seasonal fecundity is of interest from evolutionary, ecological, and conservation perspectives. However, direct estimation of seasonal fecundity is difficult, especially with multi-brooded birds, and models representing the renesting and quitting processes are usually required. To explore the consequences of modeling decisions on inference about avian seasonal fecundity, we generalize previous Markov chain (MC) models of avian nest success to formulate two different MC models of avian seasonal fecundity that represent two different ways to model renesting decisions and breeding cessation. We parameterize both Markov chains (regular and absorbing) for two species (Eastern Meadowlark, Sturnella magna, and Dickcissel, Spiza …

Seismic Observations Of Transient Subglacial Water-Flow Beneath Macayeal Ice Stream, West Antarctica, J. Paul Winberry, Sridhar Anandakrishnan, Richard B. Alley

All Faculty Scholarship for the College of the Sciences

New seismic observations of harmonic tremors beneath MacAyeal Ice Stream, West Antarctica are reported. Each of the two tremor events that we recorded during a six week period had sustained arrival of 3 Hz energy for approximately 10 minutes. During that time the source location migrated a few kilometers. The harmonic nature of the tremors is interpreted as the result of resonance in subglacial water-filled cracks and conduits. The duration, monochromatic nature, and movement of the tremor indicate that the source mechanism is likely flow in the subglacial water system resulting from the discharge from a small subglacial lake. Our …

Evolution Of Minesoils At A Coal Waste Pile: A Case Study From Rosice-Oslavany (Czech Republic), Martin Ivanov, Jiri Faimon, Petr Jarmara, Lubomir Pesak

Studia UBB Geologia

Mine soil development at abandoned coal waste pile (Kukla-Václav Nosek mine, Oslavany) represents a possibility to study initial stages of pedogenetic process. Seven soil profiles were uncovered by digging pits at the base and on the slopes and top of the waste pile. Several conclusions concerning soil development at waste pile are possible on the basis of soil profiles description and basic chemistry: 1. Intensive humification was the main pedogenetic process in the initial stages of mine soil evolution at the Kukla waste pile. There is no translocation of clay minerals even in the soil profiles evolving for about 60 …

Culture And Landslide Risk In The Central Andes Of Bolivia And Peru, Nicholas Roberts

Studia UBB Geologia

Culture and its heritage play a major role in determining landslide risk in the Central Andes. Examples of some of these many possible influences are provided from natural and social science literature and from the author’s recent work in Bolivia. Landslide risk appears to have generally increased throughout the last millennium, due largely to anthropogenic modification of hazard, exposure, vulnerability and coping capacity. These changes result from both local and distant pressures and from contemporaneous and pervious cultural factors. Consequently, holistic examination of landslide risk necessitates consideration of culture and its heritage.

Natural And Historic Heritage Of The Bochnia Salt Mine (South Poland), Janusz Wiewiorka, Krzysztof Dudek, Józef Charkot, Małgorzata Gonera

Studia UBB Geologia

The Bochnia Salt Mine, presented in this paper, is situated ca. 40 km E of Cracow, in the southern part of the Neogene Carpathian Foredeep, close to the Carpathian edge. In this region the rock-salt deposits formed as a result of the Late Miocene folding and local tectonic thickening of Badenian evaporites. The Bochnia deposit, situated in the almost vertical N limb of the Bochnia Anticline, stretches ca. 7 km WE, but only 15-200 m NS. Salt mining in Bochnia began in the thirteenth c. and continued until 1990. The historic part of the mine, since 1995 operated by a …

Roşia Montană Cultural Heritage In The Context Of A New Mining Development, Adrian Gligor, Calin Tamas

Studia UBB Geologia

The Roşia Montană Project represents a responsible mining project in progress in the Apuseni Mountains, Romania. It is the first mining project developed in Romania according to up-to-date Romanian and international (EU) standards. Besides specific geological and mining aspects, the Project comprises various other aspects concerning the culture and the community. The present paper presents the cultural heritage of Roşia Montană in the framework of the new mining development proposed by Roşia Montană Gold Corporation.

Baia Mare Geological And Mining Park – A Potential New Geopark In The Northwestern Part Of Romania, Marinel Kovacs, Alexandrina Fülöp

Studia UBB Geologia

The Baia Mare region is a very well known mining area, with an excellently studied regional geology in Romania. The geological heritage has been strongly incorporated in the economic and social development of the region which is now subject to the cease of the mining-based activities. The natural heritage, as well as the historical and cultural values of the region, will contribute substantially to the future development. The region of Baia Mare has a high potential for founding a new Geopark in the Gutâi Mts. volcanic area. The main geological, mining/archaeological/historical, ecological and cultural issues of the Baia Mare region …

Archaeometric Comparison Between The Neolithic Pottery Of Different Cultures At The Archaeological Site Of Alba Iulia (Transylvania, Romania), Bruno Fabbri, Mihai Gligor, Sabrina Gualtieri, Simona Varvara

Studia UBB Geologia

A large quantity of pottery has been discovered at the Lumea Nouă Neolithic and Eneolithic settlement in Alba Iulia City (Romania). It belongs to different cultures, and in this paper a comparison among three of them is made: Vinča, Lumea Nouă and Foeni. An analogous number of samples has been selected for each of the three cultures, together with some clay samples collected in the Alba Iulia settlement area. The samples have been analysed by means of XRF, XRPD, and in thin section. Significant differences among the three cultures are only related to the alkalis contents. The Lumea Nouă pottery …

Dimension Stones Of The Old City Wall Of Cluj-Napoca, Romania – An Overview On History, Mapping, Weathering, And Damages, Paul Calin Racataianu, Roman Koch

Studia UBB Geologia

The dimension stones used in the construction of the Old City Wall of Cluj-Napoca, Romania are Eocene limestones, which were quarried in close vicinity of Cluj. Different facies types reveal different weathering features. The weathering processes are complex and the weathering features vary markedly depending on the rock types, composition, weather conditions, geographical position, moisture/dry cycles, position in the building, and exposure to pollutants. The internationally accepted non-destructive method of mapping conjunctively with the new method of determining the “damage indices” allow a precise classification and evaluation of the rock types and damages and also an overview on the development …

Teaching Principal Plate Tectonic Processes By Means Of Analogue Modeling, Hans-Peter Steyrer

Studia UBB Geologia

No abstract provided.

The Power Of Deep Time In Geoscience Education: Linking ‘Interest’, ‘Threshold Concepts’, And ‘Self-Determination Theory’, Roger Trend

Studia UBB Geologia

No abstract provided.

Why We Do It – The University Of South Florida Tampa Library’S Commitment To Open-Access Publishing, Todd Chavez

Studia UBB Geologia

No abstract provided.

Slides: Groundwater Law And Administration: From Conflict To Reform, Michael A. Gheleta

Western Water Law, Policy and Management: Ripples, Currents, and New Channels for Inquiry (Martz Summer Conference, June 3-5)

Presenter: Michael A. Gheleta, Brownstein Hyatt Farber Schreck LLP, Denver, CO

14 slides

Slides: Modifying Prior Appropriation: The Spectrum Of Experiences, Adam Schempp

Western Water Law, Policy and Management: Ripples, Currents, and New Channels for Inquiry (Martz Summer Conference, June 3-5)

Presenter: Adam Schempp, Environmental Law Institute, Washington, DC

12 slides

Slides: Next Evolutionary Steps In State Instream Flow Programs, Lawrence J. Macdonnell

Western Water Law, Policy and Management: Ripples, Currents, and New Channels for Inquiry (Martz Summer Conference, June 3-5)

Presenter: Lawrence J. MacDonnell, attorney and consultant, Boulder, CO

27 slides

Slides: Rethinking Western Water Law: Restoring The Public Interest In Western Water Law, Mark Squillace

Western Water Law, Policy and Management: Ripples, Currents, and New Channels for Inquiry (Martz Summer Conference, June 3-5)

Presenter: Mark Squillace, Director, Natural Resources Law Center, University of Colorado Law School

20 slides