Geology Commons^™

Mobility Of Escherichia Coli Within Karst Terrains, Kentucky, Usa, Ashley M. Bandy

Theses and Dissertations--Earth and Environmental Sciences

Bacterial contamination of karst aquifers is a concern as water quality across the globe deteriorates in the face of decreasing water security. This study examined the transport and attenuation of two non-virulent isolates of Escherichia coli in relation to traditional groundwater tracers such as rhodamine WT dye and latex microspheres in two karst regions in Kentucky. Differential movement between the four tracers was observed in both epikarst and karst aquifer traces, with differences in behavior dependent on flow conditions. Attenuation was greater for the bacterial isolate containing the iha gene, compared to the isolate containing the kps gene. Microspheres of …

Spring Responses To Storms And Seasonal Variations In Recharge In The Middle Atlas Region Of Morocco, Brett Andrew Howell

Theses and Dissertations--Earth and Environmental Sciences

Springs in the Middle Atlas Mountains of Morocco are significant sources for public water supply. From March 2014 to May 2015, water temperatures were measured hourly at three springs (Ribaa, Sidi Rached, and Zerouka); water levels were measured hourly at Sidi Rached and Zerouka; and daily turbidity data were obtained from Ribaa. From March 2014 to March 2015, daily water samples were taken at Zerouka for analyses of the stable isotopes deuterium and oxygen-18. Hourly weather data (precipitation and air temperature) were available from March 2014 to May 2015 from Ifrane, near Zerouka. Temperature responses varied between the springs, showing …

Lower Mississippian Chert Development, Southern Midcontinent Region, J. M. Cains, A. Potra, E. D. Pollock

Journal of the Arkansas Academy of Science

The Lower Mississippian Boone Formation is a chert-bearing, fossiliferous limestone typically 100-115m. thick forming the Springfield Plateau across the tri-state region of northwestern Arkansas, southwestern Missouri, and northeastern Oklahoma. The Boone represents the maximum flooding, highstand, and regressive intervals of a single, third order transgressive-regressive carbonate cycle bounded by regional unconformities. Two types of chert occur in this formation, and provide the basis for subdivision of the Boone into informal lower and upper members in northern Arkansas. The lower Boone represents early Osagean maximum flooding conditions and consists of calcisiltites with interbedded dark, nodular chert. This chert exhibits compaction phenomena …

Modeling Spring Catchment Discharge: A Case Study Of Candela, Panama, Central America, Jordan P. Van Sickle

Dissertations, Master's Theses and Master's Reports

Where the proper geological and hydrological conditions exist, natural springs have provided a reliable source of clean water to mankind for eons. Changing climates and land development can negatively impact spring source replenishment and threaten their reliability as a source of water. In the face of prospects of diminishing supplies and increasing population demands, community leaders question whether and how to invest in development for enhancing sustainability and protecting water quality, causing water managers to dispute their reliability given decreasing flows. Springs located in the rugged jungle of western Panama serve as the primary water supply for many indigenous communities, …

Late Glacial And Holocene History Of The Penobscot River In The Penobscot Lowland, Maine, Roger Leb. Hooke, Paul R. Hanson, Danile F. Belknap, Alice R. Kelley

Conservation and Survey Division: Faculty and Staff Publications

When the Laurentide ice sheet retreated rapidly (~150 m/a) across the Penobscot Lowland between ~16 and ~15 ka, the area was isostatically depressed and became inundated by the sea. Silt and clay were deposited, but no significant moraines or deltas were formed. The Penobscot River was reborn at ~14 ka when ice retreated onto land in the upper reaches of the river’s East Branch. As isostatic rebound exceeded sea level rise from melting ice, the river extended itself southward. Between ~13.4 and 12.8 ka, it established a course across marine clay and underlying glacial till in the Lowland. Its gradient …

Nebraska's Public Access Hunting Program: Hunter Preferences And Usage Final Report, Lisa Pennisi, Mark E. Burbach, Namyun Kil, Muhammed Imran Kahn, Andrew J. Tyre

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

Soft-Sediment Deformation And Dune Collapse In The Navajo Sandstone, Colby Ford

Loma Linda University Electronic Theses, Dissertations & Projects

The Canyon Overlook Trail of Zion National Park follows an outcrop of Navajo Sandstone, which displays a uniquely well-exposed assemblage of features associated with failure of the lee face of a large eolian dune, and run-out over an expanse of interdune sediments downwind of that bedform. Exposed features include dramatic folds in the interdune succession and a stacked series of thrust sheets incorporating both interdune and overlying dune deposits. Thrust surfaces display consistent strikes, parallel to those of undeformed foresets, and incorporate zones of brittle failure and fluid deformation, including folds overturned in the direction of foreset dip. These features …

Rewetting Of Artificially Desiccated Soils: Effect Of Gravity On Vapor-Phase Diffusion, Taylor Arland Ball

UNLV Theses, Dissertations, Professional Papers, and Capstones

Soil desiccation has been suggested as an economically viable alternative for stabilizing water soluble contaminants in deep vadose zones such as at the Hanford Site. This approach would result in a large volume of the vadose zone being dried out in an effort to eliminate the transport mechanism for aqueous phase contaminants. Protecting the top and sides of the desiccated vadose zone from rewetting is a realistic possibility; however, it would be extremely difficult to restrict the upward migration of water from beneath the desiccated zone. One scenario related to the rewetting of the desiccated soil involves the upward migration …

Deep Fluid Inputs Into The Continental-Scale Nubian Sandstone Aquifer System Constrained By Hydrochemical, Stable Isotope, And Noble Gas Data, Abdel Mawgoud Mohammed

Dissertations

The Nubian Sandstone Aquifer System (NSAS) of northeastern Africa is one of the largest confined fossil-water aquifer systems in the world, with several nations relying on it (Egypt, Libya, Sudan and Chad). This groundwater is the biggest and in some cases the only future source of water to meet the development goals of each NSAS country. This study provides new geochemical data from the main oases of the Western Desert of Egypt and a compilation of published hydrochemical data from the regional aquifer. Interpretation of results suggests heterogeneous fluid mixing within the aquifer, the potential for hydrochemical sub-basins, and a …

Phosphorus Sorption Dynamics In Shallow Groundwater, Coastal Everglades, Florida, Usa, Hilary Flower

USF Tampa Graduate Theses and Dissertations

For this dissertation I studied phosphorus (P) sorption dynamics in the shallow groundwater of the southern Everglades. In particular, I examined how the ambient water type governs soluble reactive P (SRP) availability through adsorption/desorption reactions with the aquifer matrix. Chapter 2 investigated how P sorption dynamics of the mangrove root zone sediment are affected by high bicarbonate brackish groundwater compared to both fresh groundwater and saltwater. The results from chapter 2 show that the sediment exhibited exceptionally low sorption efficiency in the high bicarbonate brackish water, which would allow ambient water SRP concentration to be maintained at a higher level. …

Ua24 Mcicsl Newsletter - November 2015, Shannon R. Trimboli Education Coordinator

MCICSL Newsletter

This issue includes the following:

Partners Recognized for Water Quality Research at Mammoth Cave National Park and Increasing Diversity in the Geosciences

Texas A&M – Galveston Students Participate in Citizen Science at Mammoth Cave National Park

Northern Kentucky University and the Mammoth Cave International Center for Science and Learning to Host Partners in the Parks Program at Mammoth Cave National Park

as well as education and research highlights, and MCICSL symposium information

Microgravity Methods- The National Corvette Museum, Bowling Green, Ky, Ric Fredrico, Brian Ham

National Cave and Karst Management Symposia

No abstract provided.

Analyzing Possible Influences In Karst Regions Contributing To Harmful Algal Bloom Occurrences In Freshwater Lakes, Robert Schaefer, Jason Polk, Keegan Mcclanahan

National Cave and Karst Management Symposia

No abstract provided.

Origin Of Jewel Cave And How It Supports Cave Management Decisions, Mike Wiles

National Cave and Karst Management Symposia

No abstract provided.

Contaminant Mapping And Refugia: Hidden River Cave, Kentucky, Chris Smart, Caren Raedts

National Cave and Karst Management Symposia

No abstract provided.

An Investigation Of Groundwater Flow In The Vicinity Of Patoka Dam, Indiana: Assessment Research To Support United States Army Corps Of Engineers Dam Safety Risk, Lee Anne Bledsoe, Chris Groves, Kenneth Henn, Jackie Row

National Cave and Karst Management Symposia

No abstract provided.

An Analysis Of The Lost River Karst Aquifer’S Hydrometeorological Response To Storm Events For Flooding And Water Quality Management, Logan Mitchell, Jason Polk, Kegan Mcclanahan

National Cave and Karst Management Symposia

No abstract provided.

An Analysis Of The Lost River Karst Aquifer’S Hydrometeorological Response To Storm Events For Flooding And Water Quality Management, Logan Mitchell, Jason Polk, Kegan Mcclanahan

National Cave and Karst Management Symposia

No abstract provided.

Discovery And Management Of Georgia Caves, Lasha Asanidze, Kukuri Tsikarishvili, Zaza Lezhava, Nana Bolashvili, Nino Chikhradze

National Cave and Karst Management Symposia

No abstract provided.

Quantitative Dye Studies To Evaluate The Spill Response System For Mammoth Cave National Park, Jetara Brown, Rickard Toomey, Rick Olson, D. Solomon, Lonnie Sharp

National Cave and Karst Management Symposia

No abstract provided.

Potential Application Of Hugelkultur To Increase Water Holding Capacity Of Karst Rocky Desertified Land, Megan Laffoon, Albert Meier, Chris Groves

National Cave and Karst Management Symposia

No abstract provided.

Isotopic Evolution And Epikarst Mixing In A Telogenetic Karst System: Implications For Contaminant Transport And Groundwater Movement, Keegan Mcclanahan, Jason Polk, Benjamin Miller, Robert Schaefer, Carl Bolster

National Cave and Karst Management Symposia

No abstract provided.

Dripwater Chemistry And Land-Use Study At Diamond Caverns, Hart County, Ky: Science And Student Engagement At A Show Cave, Ethan Morgan, Andrew Wulff, Pat Kambesis, Chris Groves

National Cave and Karst Management Symposia

No abstract provided.

Building Resilience Against Karst Hazards: A Case Study Of The National Corvette Museum Sinkhole, Jason Polk, Ric Fredrico, Brian Ham, Daniel Nedvidek, Kegan Mcclanahan, Leslie A. North, Pat Kambesis, Mike Marasa

National Cave and Karst Management Symposia

No abstract provided.

Improving Stormwater Treatment Efficiency Based On Runoff Properties At Mammoth Cave National Park, Hung-Wai Ho, Rickard Toomey

National Cave and Karst Management Symposia

No abstract provided.

Numerical Simulation Of Spring Hydrograph Recession Curves For East Yorkshire Chalk Aquifer, Uk, Nozad Hasan Azeez, Landis Jared West, Simon H. Bottrell

Sinkhole Conference 2015

The Cretaceous Chalk aquifer is the most important in the UK for the provision of water to public supply and agriculture. The Chalk has both matrix and fracture porosity and is thus best considered as a dual porosity aquifer system. Although the matrix porosity is large, typically around 0.35 in the study area of East Yorkshire, UK (ESI, 2010), pore diameters are typically very small, and the water contained in them is virtually immobile. The high permeability fracture network is responsible for the ability of water to drain; spatial variations in fracture network properties mean conventional approaches to aquifer characterization …

Hydrochemical Characteristics And Formation Mechanism Of Groundwater In The Liulin Karst System, Min Yang, Feng'e Zhang, Sheng Zhang, Miying Yin, Guoqing Wu

Sinkhole Conference 2015

The Liulin karst system is typical of hydrogeological systems in northwestern China, with a group of springs as the dominant mechanism for regional groundwater discharge. To reveal the hydrochemical formation mechanism of the Liulin karst groundwater system, we studied the hydrogeochemical processes of karst groundwater in aquifers at the base of the hydrogeological investigation. Then starting from the chemical composition of karst groundwater together with the recharge-runoff - discharge process of groundwater systems, we analyzed the solutes origin and the dissolved mineral facies of the groundwater chemical composition. The results showed that the anionic and cationic compositions of karst water …

Finding Springs In The File Cabinet, Mason Johnson, Ashley Ignatius

Sinkhole Conference 2015

The Minnesota Pollution Control Agency (MPCA), in partnership with other agencies, is currently undertaking comprehensive sub-basin assessments statewide over a ten-year period. Southeast Minnesota has over 17,500 kilometers of perennial and intermittent streams, making the task of comprehensive sub-basin assessment challenging; the task is further complicated by karst geology. In the summer of 2014, a pilot project began between the MPCA and Minnesota Department of Natural Resources (DNR) to digitally preserve paper documents which capture qualitative and quantitative data about the hydrology, water chemistry, geomorphology, biology, land use and karst features of southeast Minnesota streams. The paper documents in file …

History And Future Of The Minnesota Karst Feature Database, Robert Tipping, Mathew Rantala, E. Calvin Alexander Jr., Yongli Gao, Jeffrey Green

Sinkhole Conference 2015

Since the 1990s, the University of Minnesota and the Minnesota Department of Natural Resources have maintained a karst features database that is used to conduct research on karst processes and inventory karst features. Originally designed as a tabular database only, the karst features database developed into a spatial database in 2002, with tabular data stored in Microsoft Access and a spatial component managed in ESRI ArcView. In 2012, the database was converted to a single, relational database platform, PostgreSQL, with both tabular and spatial components edited in ESRI ArcMap. Custom editing forms are written in Visual Basic and are accessed …

Sinkhole Vulnerability Mapping: Results From A Pilot Study In North Central Florida, Clint Kromhout, Alan E. Baker

Sinkhole Conference 2015

At the end of June in 2012, Tropical Storm Debby dropped a record amount of rainfall across Florida which triggered hundreds, if not thousands, of sinkholes to form which resulted in tremendous damage to property. The Florida Division of Emergency Management contracted with the Florida Department of Environmental Protection’s Florida Geological Survey to produce a map depicting the state’s vulnerability to sinkhole formation. The three-year project began with a pilot study in three northern Florida counties: Columbia, Hamilton and Suwannee. Utilizing the statistical modeling method Weights of Evidence, results from the pilot study yielded a 93 percent success rate of …