Articles

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Selective recharge and isotopic composition of shallow groundwater within temperate, epigenic carbonate aquifers, Journal of Hydrology (2013)

This paper considers the variation of δ18O and δ2H (VSMOW) in precipitation and shallow groundwater...

 

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The Effects of Evapotranspiration Upon Recharge Using the Stable Isotopes of Oxygen and Hydrogen in the Carbonate Aquifers of the Cumberland Plateau in Southeast Kentucky, Proceedings of the 17th National Cave and Karst Management Synposium (2011)

In this brief manuscript, we consider the variation of the stable isotopes of oxygen, δ18O,...

 

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Communication and 'Forestructures' at the Geological Intersection of Caves and Ground Water Flow: Hermeneutics and Parochialism (with H. L. Vacher), Earth Sciences History (2011)

The direction of cave and karst science throughout its history has been partly determined by...

 

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Communications and 'Forestructures' at the Geological Intersection of Caves and Subsurface Water Flow: Hermeneutics and Parochialism (with H. Len Vacher), Earth Sciences History (2011)

The direction of cave and karst science throughout its history has been partly determined by...

 

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Iron Oxide and Calcite Associated with Leptothrix sp. Biofilms within an Estavelle in the Upper Floridan Aquifer (with Chasity L. Stinson, Josh Brewer, Rick Fowler, B Joe Kearns, and Anthony M. Greco), International Journal of Speleology (2011)

In Thornton’s Cave, an estavelle in west-central Florida, SEM, EDS, and XRD data reveal biofilms...

 

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Stable Isotopic and Geochemical Variability within Shallow Groundwater beneath a Hardwood Hammock and Surface Water in an Adjoining Slough (Everglades National Park, Florida, USA) (with Dorien K. McGee), Isotopes in Environmental and Health Studies (2010)

Data from a 10-month monitoring study during 2007 in the Everglades ecosystem provide insight into...

 

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NMR Imaging of Fluid Exchange between Macropores and Matrix in Eogenetic Karst (with Kevin Cunningham and Stephen Altobelli), Ground Water (2009)

Sequential time-step images acquired using nuclear magnetic resonance (NMR) show the displacement of deuterated water...

 

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Using ALSM to map sinkholes in the urbanized covered karst of Pinellas County, Florida—1, methodological considerations (with Larry D. Seale, H L. Vacher, and Robert Brinkmann), Environmental Geology (2008)

Comparison of a database of interpreted sinkholes made using airborne laser swath mapping (ALSM) with...

 

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Using ALSM to map sinkholes in the urbanized covered karst of Pinellas County, Florida—2. Accuracy statistics (with H L. Vacher, Larry D. Seale, and Robert Brinkmann), Environmental Geology (2008)

We apply the logic of clinical epidemiological studies to quantify the accuracy of mapping sinkholes...

 

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Quaternary cave levels in peninsular Florida (with H L. Vacher, Brain Donahue, and David Naar), Qaternary Science Reviews (2007)

The hypothesis that caves in the Florida Peninsula are tied to Quaternary sea levels was...

 

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Eogenetic Karst Hydrology: Insights from the 2004 Hurricanes, Peninsular Florida (with H L. Vacher), Ground Water (2007)

Eogenetic karst lies geographically and temporally close to the depositional environment of limestone in warm...

 

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Architecture of Air-Filled Caves within the Karst of the Brooksville Ridge, West-Central Florida, Journal of Cave and Karst Studies (2006)

Air-filled caves surveyed in the Brooksville Ridge of west-central Florida provide insight into the organization...

 

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MORPHOLOGIC FEATURES OF CONDUITS AND AQUIFER RESPONSE IN THE UNCONFINED FLORIDAN AQUIFER SYSTEM, WEST CENTRAL FLORIDA (with H L. Vacher), The 12th Symposium on the Geology of the Bahamas and other Carbonate Regions (2006)

Conduits within the unconfined Floridan Aquifer of west-central Florida include both horizontal and vertical components....

 

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CAVE LEVELS, MARINE TERRACES, PALEOSHORELINES, AND THE WATER TABLE IN PENINSULAR FLORIDA (with H L. Vacher), Archives of Climate Change in Karst (2006)

Levels of passages are a common feature of many cave systems around the world. Likewise,...

 

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Le Voragini Catastrofiche della Florida (with Robert Brooks, Tom Turner, and Mario Parise), Speleologia (2006)

The West-Central Florida landscape is worlds away from white-sand beaches and palm trees: gentle rolling...

 

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Springflow Hydrographs: Eogenetic vs. Telogenetic Karst (with H L. Vacher), Ground Water (2006)

Matrix permeability in the range of 10−11 to 10−14 m2 characterizes eogenetic karst, where limestones...

 

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Using State-wide GIS data to identify the coincidence betwen sinkholes and geologic structure, Journal of Cave and Karst Studies (2005)

The Kentucky GIS coverage of sinkholes, completed in 2003, consists of 101,176 polygons representing the...

 

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The Reflection of Karst in the Online Mirror: A Survey Within Scientific Databases, 1960-2005 (with Beth Fratesi and Todd A. Chavez), Journal of Cave and Karst Studies (2005)

The field of cave and karst science is served by a literature that is dispersed...

 

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KARST OF WESTERN CUBA: OBSERVATIONS, GEOMORPHOLOGY, AND DIAGENESIS (with Larry D. Seale, Limaris R. Soto, and Beth Fratesi), 12th Symposium on the Geology of the Bahamas and other Carbonate Terrains (2004)

In Cuba, we observed many karst features in a variety of hydrogeologic settings. These hy-drogeologic...

 

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Sedimentation and Porosity Enhancement in a Breached Flank Margin Cave (with John Mylroie and Adam Price), Carbonates and Evaporites (2004)
 

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Karst GIS advances in Kentucky (with Randall L. Paylor, Larry Simpson, and Jason Gulley), Journal of Cave and Karst Studies (2002)

Little statewide geospatial data was available for Kentucky caves and karst in the past. Recent...

 

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Solute Transport through Laboratory-Scale Karstic Aquifers (with Carol M. Wicks), Journal of Cave and Karst Studies (2001)

Laboratory-scale models of branchwork and of network karstic aquifers were constructed to provide data needed...

 

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Karst genetic model for the French Bay Breccia deposits, San Salvador, Bahamas (with John Mylroie and Jim Carew), Theoretical and Applied Karstology (2001)
 

Books

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Rise and Shine: An autobiographical sketch relating the life and times of rural Kentucky during the 1940s (with Jewell E. Florea) (2009)

The community of Poplarville, in the beautiful hills along the edge of the Cumberland Plateau...

 

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The Karst of West-Central Florida (2006)

Caves, the cornerstone feature of karst aquifers, are little understood in Florida. This dissertation, which...

 

Contributions to Books

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Caves and Karst of West-Central Florida (with David Budd and Robert Brinkmann), Caves and Karst of the USA (2009)

The real west-central Florida is far from the “Sunshine State” image of white sand beaches...

 

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The Biscayne Aquifer of Southeastern Florida (with Kevin Cunningham), Caves and Karst of the USA (2009)

In southeastern Florida, locally delineated, small, poorly explored caves and subtle karst are characteristic of...

 

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The Cumberland Plateau of Eastern Kentucky (with Larry C. Simpson), Caves and Karst of the USA (2009)

Eastern Kentucky contains almost the same Mississippian limestones that appear at Mammoth Cave in south-central...

 

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The Southeastern Coastal Plain: An Overview (with H L. Vacher), Caves and Karst of the USA (2009)

Florida enjoys the highest density of large springs in North America (Scott et al., 2004);...

 

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Geology and Hydrology of Karst in West-Central and North-Central Florida, Caves and Karst of Florida (2008)

The state of Florida is blessed with the highest density of large springs in North...

 

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Biogenic Porosity and its Lattice Boltzmann Method Permeability in the Karst Biscayne Aquifer (with Kevin Cunningham, Mike Sukop, Haibo Huang, Pedro Alvarez, Allen Curran, Michael Waker, Robert Renken, and Joann F. Dixon), Karst From Recent to Reservoirs (2008)
 

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Focus group on karst hydrology - conceptual models, aquifer characterization, and numerical modeling (with Martin Sauter and others), Frontiers of Karst Research (2008)
 

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Visualization of Groundwater Flow within Touching-Vug and Matrix Porosity in an Eogenetic Karst Aquifer (with Kevin J. Cunningham and Stephen Altobelli), Karst From Recent to Reservoirs (2008)

In this study, we use an innovative, non-invasive technology, nuclear magnetic resonance imaging (NMRI), to...

 

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I Sinkholes nella Letteratura Scientifica Internazionale: una Breve Rassegna, con Particulare Riferimento Agli Stati Uniti D'America (with Mario Parise), I fenomeni naturali di sinkhole nelle aree di pianura italiane (2007)

Fenomeni di sinkholes sono diffusi in moltissimi paesi del mondo, in ambiti geologici e morfologici...

 

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Sinkhole distribution based on pre-development mapping in urbanized Pinellas County, Florida, USA (with Robert Brinkmann, Kelly Wilson, Nichole Elko, Larry D. Seale, and H L. Vacher), Natural and Anthropogenic Hazards in Karst Areas: Recognition, Analysis and Mitigation (2007)

Locating sinkholes in Pinellas County, Florida, is confounded by the presence of a cover of...

 

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Detection of Iapetan Rifting (Rome Trough Tectonism) by Quaternary Karstification: Pulaski County, Kentucky, Karst Frontiers (2002)
 

Popular Press

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Everglades National Park – Surveying the southernmost cave in the continental United States (with Amber J. Yuellig), Inside Earth (2007)

Everglades National Park encompasses 1.5 million acres of grassland glades, tree islands, cypress strands, and...

 

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International, cooperative research in the Apuseni Mountains of western Romania (with Bogdan P. Onac), NSS News (2007)

In May of 2006, nine American scientists and cavers from the Karst Research Group at...

 

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Community Education in Karst at the Geological Alumni Society GeoPark, University of South Florida (with Beth Fratesi), NSS News (2006)
 

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The 2004 Vaca Pateau Geoarcheology Expedition - Belize (with Beth Fratesi, Philip Reeder, and Amber Yuellig), NSS News (2005)
 

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Light & Dark: The Hidden Wonders of Buck Creek, Conserving Kentucky (2004)

As early morning mists rise from the banks of its supple waters, beams of light...

 

Presentations

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A Snapshot of the Body of Karst Literature (with Sarah E. Fratesi, Todd A. Chavez, and H. Len Vacher), Geological Society of America Annual Meeting (2006)

The pace of research in cave and karst science is increasing. The inherent multidisciplinary nature...