Carbonate Aquifer Characterization Laboratory
Active
By Caribbean-Florida Water Science Center (CFWSC)
December 14, 2018
The Carbonate Aquifer Characterization Laboratory (CACL) was initiated to promote collaborative research on carbonate aquifer characterization between the USGS and other governmental scientific agencies and academia. And, also to provide applied research for local, state, and federal agencies, and private industry, when research needs are within the scope of the USGS mission.
As the primary Federal science agency for water-resources information, the USGS is responsible for monitoring the quantity and quality of water in the Nation's rivers and aquifers and assessing the sources and fate of contaminants in aquatic systems. Towards this goal, a top priority for the USGS is to provide information to better define and manage the quality of the Nation's water resources. The CACL directly addresses this priority issue for the USGS by improving strategies to identify and protect drinking-water sources. The approach of the CACL is focused on the integration of the various disciplines that include core examination, sequence stratigraphy, borehole geophysics, digital optical borehole imaging, seismic, ground-penetrating radar, and 3D geomodeling.
Our mission
The mission of the Carbonate Aquifer Characterization Laboratory (CACL) is to develop methods for carbonate aquifer characterization and conduct applied research that focuses on better understanding groundwater flow in multi-porosity carbonate aquifers. Groundwater flow in carbonate aquifers is particularly difficult to characterize because of a broad range in pore size and complicated pore connectivity. Diverse porosity and permeability networks represent a significant challenge to the accurate simulation of carbonate aquifer groundwater flow. This research is integrating the use of state-of-the-art technologies, including:
- Study of outcrop and subsurface carbonate rocks
- Cyclostratigraphy
- Ichnology
- High-multichannel 2D and 3D seismic
- Advanced borehole geophysics
- Digital optical borehole imagingComputational methods (eg., Lattice Boltzmann methods)
- 3D geomodeling with ROXAR RMS™
- Ground-penetrating radar
Capabilities
The capabilities of the Carbonate Aquifer Characterization Laboratory (CACL) are diverse and have largely concentrated on (1) hydrogeologic framework studies, (2) aquifer characterization, and (3) freshwater-saltwater interface delineation. Major specific technologies used by and available at the CACL include:
- Geologic analyses (sequence stratigraphy, lithostratigraphy, paleontology, petrography, ichnology, karstology [Reese and Cunningham, 2000; Cunningham et al., 2001a,b, 2003, 2004a,b, 2006a,b, 2007, 2008, 2010a,b; Ward et al., 2003; Rigby and Cunningham 2007; Cunningham and Florea, 2009; Cunningham and Walker, 2009; Hine et al., 2009; Cunningham and Sukop, 2011; Cunningham and Sukop, 2012; Cunningham et al., 2012a,b])
- Marine high-resolution multi-channel seismic (Kingdom Suite SMT™ software [Cunningham and Walker, 2009; Cunningham et al., 2012]) Marine high-resolution, multichannel seismic-reflection data acquired on the southeastern Florida peninsula in a canal. [larger image]
- Advanced borehole geophysics (Cunningham et al., 2004c, 2010b; Wacker and Cunningham, 2008) Geophysical Equipment List (Available from CFWSC-Davie) [USGS]
- Computational simulations (Shoemaker et al., 2008; Sukop et al., 2008; Cunningham et al., 2009, 2010b, 2012; Cunningham and Sukop, 2011; Sukop et al., 2013)
- 3D geomodeling (ROXAR RMS™ software) (Cunningham et al., 2012)
- Ground-penetrating radar (Cunningham et al., 2001b; Cunningham et al., 2003; Cunningham 2004)
- Tracer studies (Renken et al., 2005; Cunningham et al., 2008; Harvey et al., 2008; Renken et al., 2008; Shapiro et al., 2008)
- Hydraulic well testing (Renken et al., 2008; Shapiro et al., 2008)
- Nuclear magnetic resonance imaging (Florea et al., 2009)
- X-ray computed tomography (Cunningham et al., 2009, 2010b; Cunningham and Sukop, 2011; 2012; Cunningham et al., 2012a; Sukop et al., 2013)
- CHIRP portable sub-bottom profiler Geophysical Equipment List (Available from CFWSC-Davie) [USGS]
- Distributed temperature surveys Geophysical Equipment List (Available from CFWSC-Davie) [USGS]
- Water-based Supersting™ continuous resistivity surveys (CRP) Geophysical Equipment List (Available from CFWSC-Davie) [USGS]
- Geonics™ time-domain electromagnetic system (TDEM) (Scott T. Prinos, personal communication) Geophysical Equipment List (Available from CFWSC-Davie) [USGS]
- Geometrics™ Ohm-Mapper capacitively-coupled resistivity system Geophysical Equipment List (Available from CFWSC-Davie) [USGS]
Below the data associated with this project.
Seawater chemistry and physical property profiling using CDT casts above two seafloor pockmarks on the Miami Terrace offshore of southeastern Florida, 2016
In the Atlantic Ocean and above the Miami Terrace off southeastern Florida, a total of nine CTD (conductivity, temperature, and depth) casts were performed using the 115-foot Research Vessel (R/V) Weatherbird II above the submerged Miami Terrace at the Miami pockmark and Key Biscayne pockmark from May 4 to May 8, 2016. A CTD is a package of electronic instruments and sampling devices that measure
Multibeam sonar bathymetric data for the Miami Pockmark and Key Biscayne Pockmark
Multibeam sonar data showing the bathymetric survey of two offshore submarine pockmarks, Miami Pockmark and Key Biscayne Pockmark. A series of dives were performed to produce the bathymetric surveys using an autonomous underwater vehicle (AUV) with a multibeam-sonar. These data were collected between May 5-8, 2016 using a Bluefin B12 AUV equipped with a Imagenex MBDelta and an onboard calibrated K
Methane, nitrogen, oxygen, and carbon dioxide data for the Miami Pockmark and Key Biscayne Pockmark
Methane, nitrogen, oxygen, and carbon dioxide data were collected at two offshore submarine pockmarks, Miami Pockmark and Key Biscayne Pockmark. A series of dives were performed to gather the data using an autonomous underwater vehicle (AUV) with an Underwater Mass Spectrometer (UMS) instrument. The data were collected May 5-8, 2016 using a Bluefin B12 AUV equipped with a UMS and an onboard calibr
Conductivity, temperature, and salinity data for the Miami Pockmark and Key Biscayne Pockmark
Conductivity, temperature, and salinity data were collected from two offshore submarine pockmarks, Miami Pockmark and Key Biscayne Pockmark. A series of dives were performed to gather conductivity, temperature, and salinity data using an autonomous underwater vehicle (AUV) with a Conductivity, Temperature and Depth (CDT) instrument. These data were collected between May 5-8, 2016 using a Bluefin B
Land and marine seismic profiles used to assess the seismic stratigraphy and structure of the intermediate confining unit and Floridan aquifer system, Broward County, Florida
In southeastern Florida, the need exists to more accurately map previously defined stratiform permeability units of the Floridan aquifer system and map areas of possible vertical cross-formational fluid flow. Primarily, this is because at some deep-well injection sites in southeastern Florida upward cross-formational movement of effluent injected into the saline lower Floridan aquifer has been det
Below are publications associated with this project.
Three-dimensional seismic characterization of karst in the Floridan aquifer system, southeastern Miami-Dade County, Florida
Two three-dimensional seismic surveys totaling 3.4 square miles were acquired in southeastern Miami-Dade County during 2015 as part of an ongoing broad regional investigation by the U.S. Geological Survey, in cooperation with the Miami-Dade Water and Sewer Department, that includes mapping and karst characterization of the Floridan aquifer system in southeastern Florida. Twenty columniform seismic
Authors
Kevin J. Cunningham, Joann F. Dixon, Richard L. Westcott, Sean Norgard, Cameron Walker
Filter Total Items: 22
New larger benthic foraminifera from the subsurface Lower to Middle Eocene Oldsmar Formation of southeastern Florida (USA)
We describe two larger benthic foraminiferal taxa collected from wells drilled in the subsurface Eocene rocks of southeastern Florida that are new to peninsular Florida and the Caribbean region. Saudia floridana n.sp. is characteristic of a foraminiferal assemblage, along with Helicostegina gyralis, wide forms of the Cushmania americana group, and Gunteria floridana, in an upper part of the Oldsma
Authors
Edward Robinson, Kevin J. Cunningham
Hydrogeologic characterization of part of the Lower Floridan aquifer at the South District Wastewater Treatment Plant, Miami-Dade County, Florida
The South District Wastewater Treatment Plant in southeastern Miami-Dade County, Florida, includes a Class I treated wastewater injection well system. The detection of ammonia in monitoring zones above the injection zone in the Lower Floridan aquifer has elicited a need to understand the nature of confinement within the Lower Floridan aquifer as it pertains to the vertical migration of injectate o
Authors
Kevin L. DeFosset, Kevin J. Cunningham
Three-dimensional seismic characterization of karst in the Floridan aquifer system, southeastern Miami-Dade County, Florida
Two three-dimensional seismic surveys totaling 3.4 square miles were acquired in southeastern Miami-Dade County during 2015 as part of an ongoing broad regional investigation by the U.S. Geological Survey, in cooperation with the Miami-Dade Water and Sewer Department, that includes mapping and karst characterization of the Floridan aquifer system in southeastern Florida. Twenty columniform seismic
Authors
Kevin J. Cunningham, Joann F. Dixon, Richard L. Westcott, Sean Norgard, Cameron Walker
Statistical approach to neural network imaging of karst systems in 3D seismic reflection data
The current lack of a robust, standardized technique for geophysical mapping of karst systems can be attributed to both the complexity of the environment and prior technological limitations. Abrupt lateral variations in physical properties that are inherent to karst systems generate significant geophysical noise, challenging conventional seismic signal processing and interpretation. Modern applica
Authors
Daniel Ebuna, Jared W. Kluesner, Kevin J. Cunningham, Joel H. Edwards
Sequence stratigraphy, seismic stratigraphy, and seismic structures of the lower intermediate confining unit and most of the Floridan aquifer system, Broward County, Florida
Deep well injection and disposal of treated wastewater into the highly transmissive saline Boulder Zone in the lower part of the Floridan aquifer system began in 1971. The zone of injection is a highly transmissive hydrogeologic unit, the Boulder Zone, in the lower part of the Floridan aquifer system. Since the 1990s, however, treated wastewater injection into the Boulder Zone in southeastern Flor
Authors
Kevin J. Cunningham, Jared W. Kluesner, Richard L. Westcott, Edward Robinson, Cameron Walker, Shakira A. Khan
Lithofacies and sequence stratigraphic description of the upper part of the Avon Park Formation and the Arcadia Formation in U.S. Geological Survey G–2984 test corehole, Broward County, Florida
Rock core and sediment from U.S. Geological Survey test corehole G–2984 completed in 2011 in Broward County, Florida, provide an opportunity to improve the understanding of the lithostratigraphic, sequence stratigraphic, and hydrogeologic framework of the intermediate confining unit and Floridan aquifer system in southeastern Florida. A multidisciplinary approach including characterization of sequ
Authors
Kevin J. Cunningham, Edward Robinson
Geostatistical borehole image-based mapping of karst-carbonate aquifer pores
Quantification of the character and spatial distribution of porosity in carbonate aquifers is important as input into computer models used in the calculation of intrinsic permeability and for next-generation, high-resolution groundwater flow simulations. Digital, optical, borehole-wall image data from three closely spaced boreholes in the karst-carbonate Biscayne aquifer in southeastern Florida ar
Authors
Michael Sukop, Kevin J. Cunningham
Seismic-sequence stratigraphy and geologic structure of the Floridan aquifer system near "Boulder Zone" deep wells in Miami-Dade County, Florida
The U.S. Geological Survey, in cooperation with the Miami-Dade Water and Sewer Department, acquired, processed, and interpreted seismic-reflection data near the North and South District “Boulder Zone” Well Fields to determine if geologic factors may contribute to the upward migration of injected effluent into that upper part of the Floridan aquifer system designated by the U.S. Environmental Prote
Authors
Kevin J. Cunningham
Lattice Boltzmann methods applied to large-scale three-dimensional virtual cores constructed from digital optical borehole images of the karst carbonate Biscayne aquifer in southeastern Florida
Digital optical borehole images at approximately 2 mm vertical resolution and borehole caliper data were used to create three-dimensional renderings of the distribution of (1) matrix porosity and (2) vuggy megaporosity for the karst carbonate Biscayne aquifer in southeastern Florida. The renderings based on the borehole data were used as input into Lattice Boltzmann methods to obtain intrinsic per
Authors
Michael Sukop, Kevin J. Cunningham
Geologic and hydrogeologic frameworks of the Biscayne aquifer in central Miami-Dade County, Florida
Evaluations of the lithostratigraphy, lithofacies, paleontology, ichnology, depositional environments, and cyclostratigraphy from 11 test coreholes were linked to geophysical interpretations, and to results of hydraulic slug tests of six test coreholes at the Snapper Creek Well Field (SCWF), to construct geologic and hydrogeologic frameworks for the study area in central Miami-Dade County, Florida
Authors
Michael A. Wacker, Kevin J. Cunningham, John H. Williams
Integration of seismic-reflection and well data to assess the potential impact of stratigraphic and structural features on sustainable water supply from the Floridan aquifer system, Broward County, Florida
The U.S. Geological Survey and Broward County water managers commenced a 3.5-year cooperative study in July 2012 to refine the geologic and hydrogeologic framework of the Floridan aquifer system (FAS) in Broward County. A lack of advanced stratigraphic knowledge of the physical system and structural geologic anomalies (faults and fractures originating from tectonics and karst-collapse structures)
Authors
Kevin J. Cunningham
Characterization of the porosity distribution in the upper part of the karst Biscayne aquifer using common offset ground penetrating radar, Everglades National Park, Florida
The karst Biscayne aquifer is characterized by a heterogeneous spatial arrangement of porosity and hydraulic conductivity, making conceptualization difficult. The Biscayne aquifer is the primary source of drinking water for millions of people in south Florida; thus, information concerning the distribution of karst features that concentrate the groundwater flow and affect contaminant transport is c
Authors
Gregory S. Mountain, Xavier Comas, Kevin J. Cunningham
The Carbonate Aquifer Characterization Laboratory (CACL) was initiated to promote collaborative research on carbonate aquifer characterization between the USGS and other governmental scientific agencies and academia. And, also to provide applied research for local, state, and federal agencies, and private industry, when research needs are within the scope of the USGS mission.
As the primary Federal science agency for water-resources information, the USGS is responsible for monitoring the quantity and quality of water in the Nation's rivers and aquifers and assessing the sources and fate of contaminants in aquatic systems. Towards this goal, a top priority for the USGS is to provide information to better define and manage the quality of the Nation's water resources. The CACL directly addresses this priority issue for the USGS by improving strategies to identify and protect drinking-water sources. The approach of the CACL is focused on the integration of the various disciplines that include core examination, sequence stratigraphy, borehole geophysics, digital optical borehole imaging, seismic, ground-penetrating radar, and 3D geomodeling.
Our mission
The mission of the Carbonate Aquifer Characterization Laboratory (CACL) is to develop methods for carbonate aquifer characterization and conduct applied research that focuses on better understanding groundwater flow in multi-porosity carbonate aquifers. Groundwater flow in carbonate aquifers is particularly difficult to characterize because of a broad range in pore size and complicated pore connectivity. Diverse porosity and permeability networks represent a significant challenge to the accurate simulation of carbonate aquifer groundwater flow. This research is integrating the use of state-of-the-art technologies, including:
- Study of outcrop and subsurface carbonate rocks
- Cyclostratigraphy
- Ichnology
- High-multichannel 2D and 3D seismic
- Advanced borehole geophysics
- Digital optical borehole imagingComputational methods (eg., Lattice Boltzmann methods)
- 3D geomodeling with ROXAR RMS™
- Ground-penetrating radar
Capabilities
The capabilities of the Carbonate Aquifer Characterization Laboratory (CACL) are diverse and have largely concentrated on (1) hydrogeologic framework studies, (2) aquifer characterization, and (3) freshwater-saltwater interface delineation. Major specific technologies used by and available at the CACL include:
- Geologic analyses (sequence stratigraphy, lithostratigraphy, paleontology, petrography, ichnology, karstology [Reese and Cunningham, 2000; Cunningham et al., 2001a,b, 2003, 2004a,b, 2006a,b, 2007, 2008, 2010a,b; Ward et al., 2003; Rigby and Cunningham 2007; Cunningham and Florea, 2009; Cunningham and Walker, 2009; Hine et al., 2009; Cunningham and Sukop, 2011; Cunningham and Sukop, 2012; Cunningham et al., 2012a,b])
- Marine high-resolution multi-channel seismic (Kingdom Suite SMT™ software [Cunningham and Walker, 2009; Cunningham et al., 2012]) Marine high-resolution, multichannel seismic-reflection data acquired on the southeastern Florida peninsula in a canal. [larger image]
- Advanced borehole geophysics (Cunningham et al., 2004c, 2010b; Wacker and Cunningham, 2008) Geophysical Equipment List (Available from CFWSC-Davie) [USGS]
- Computational simulations (Shoemaker et al., 2008; Sukop et al., 2008; Cunningham et al., 2009, 2010b, 2012; Cunningham and Sukop, 2011; Sukop et al., 2013)
- 3D geomodeling (ROXAR RMS™ software) (Cunningham et al., 2012)
- Ground-penetrating radar (Cunningham et al., 2001b; Cunningham et al., 2003; Cunningham 2004)
- Tracer studies (Renken et al., 2005; Cunningham et al., 2008; Harvey et al., 2008; Renken et al., 2008; Shapiro et al., 2008)
- Hydraulic well testing (Renken et al., 2008; Shapiro et al., 2008)
- Nuclear magnetic resonance imaging (Florea et al., 2009)
- X-ray computed tomography (Cunningham et al., 2009, 2010b; Cunningham and Sukop, 2011; 2012; Cunningham et al., 2012a; Sukop et al., 2013)
- CHIRP portable sub-bottom profiler Geophysical Equipment List (Available from CFWSC-Davie) [USGS]
- Distributed temperature surveys Geophysical Equipment List (Available from CFWSC-Davie) [USGS]
- Water-based Supersting™ continuous resistivity surveys (CRP) Geophysical Equipment List (Available from CFWSC-Davie) [USGS]
- Geonics™ time-domain electromagnetic system (TDEM) (Scott T. Prinos, personal communication) Geophysical Equipment List (Available from CFWSC-Davie) [USGS]
- Geometrics™ Ohm-Mapper capacitively-coupled resistivity system Geophysical Equipment List (Available from CFWSC-Davie) [USGS]
Below the data associated with this project.
Seawater chemistry and physical property profiling using CDT casts above two seafloor pockmarks on the Miami Terrace offshore of southeastern Florida, 2016
In the Atlantic Ocean and above the Miami Terrace off southeastern Florida, a total of nine CTD (conductivity, temperature, and depth) casts were performed using the 115-foot Research Vessel (R/V) Weatherbird II above the submerged Miami Terrace at the Miami pockmark and Key Biscayne pockmark from May 4 to May 8, 2016. A CTD is a package of electronic instruments and sampling devices that measure
Multibeam sonar bathymetric data for the Miami Pockmark and Key Biscayne Pockmark
Multibeam sonar data showing the bathymetric survey of two offshore submarine pockmarks, Miami Pockmark and Key Biscayne Pockmark. A series of dives were performed to produce the bathymetric surveys using an autonomous underwater vehicle (AUV) with a multibeam-sonar. These data were collected between May 5-8, 2016 using a Bluefin B12 AUV equipped with a Imagenex MBDelta and an onboard calibrated K
Methane, nitrogen, oxygen, and carbon dioxide data for the Miami Pockmark and Key Biscayne Pockmark
Methane, nitrogen, oxygen, and carbon dioxide data were collected at two offshore submarine pockmarks, Miami Pockmark and Key Biscayne Pockmark. A series of dives were performed to gather the data using an autonomous underwater vehicle (AUV) with an Underwater Mass Spectrometer (UMS) instrument. The data were collected May 5-8, 2016 using a Bluefin B12 AUV equipped with a UMS and an onboard calibr
Conductivity, temperature, and salinity data for the Miami Pockmark and Key Biscayne Pockmark
Conductivity, temperature, and salinity data were collected from two offshore submarine pockmarks, Miami Pockmark and Key Biscayne Pockmark. A series of dives were performed to gather conductivity, temperature, and salinity data using an autonomous underwater vehicle (AUV) with a Conductivity, Temperature and Depth (CDT) instrument. These data were collected between May 5-8, 2016 using a Bluefin B
Land and marine seismic profiles used to assess the seismic stratigraphy and structure of the intermediate confining unit and Floridan aquifer system, Broward County, Florida
In southeastern Florida, the need exists to more accurately map previously defined stratiform permeability units of the Floridan aquifer system and map areas of possible vertical cross-formational fluid flow. Primarily, this is because at some deep-well injection sites in southeastern Florida upward cross-formational movement of effluent injected into the saline lower Floridan aquifer has been det
Below are publications associated with this project.
Three-dimensional seismic characterization of karst in the Floridan aquifer system, southeastern Miami-Dade County, Florida
Two three-dimensional seismic surveys totaling 3.4 square miles were acquired in southeastern Miami-Dade County during 2015 as part of an ongoing broad regional investigation by the U.S. Geological Survey, in cooperation with the Miami-Dade Water and Sewer Department, that includes mapping and karst characterization of the Floridan aquifer system in southeastern Florida. Twenty columniform seismic
Authors
Kevin J. Cunningham, Joann F. Dixon, Richard L. Westcott, Sean Norgard, Cameron Walker
Filter Total Items: 22
New larger benthic foraminifera from the subsurface Lower to Middle Eocene Oldsmar Formation of southeastern Florida (USA)
We describe two larger benthic foraminiferal taxa collected from wells drilled in the subsurface Eocene rocks of southeastern Florida that are new to peninsular Florida and the Caribbean region. Saudia floridana n.sp. is characteristic of a foraminiferal assemblage, along with Helicostegina gyralis, wide forms of the Cushmania americana group, and Gunteria floridana, in an upper part of the Oldsma
Authors
Edward Robinson, Kevin J. Cunningham
Hydrogeologic characterization of part of the Lower Floridan aquifer at the South District Wastewater Treatment Plant, Miami-Dade County, Florida
The South District Wastewater Treatment Plant in southeastern Miami-Dade County, Florida, includes a Class I treated wastewater injection well system. The detection of ammonia in monitoring zones above the injection zone in the Lower Floridan aquifer has elicited a need to understand the nature of confinement within the Lower Floridan aquifer as it pertains to the vertical migration of injectate o
Authors
Kevin L. DeFosset, Kevin J. Cunningham
Three-dimensional seismic characterization of karst in the Floridan aquifer system, southeastern Miami-Dade County, Florida
Two three-dimensional seismic surveys totaling 3.4 square miles were acquired in southeastern Miami-Dade County during 2015 as part of an ongoing broad regional investigation by the U.S. Geological Survey, in cooperation with the Miami-Dade Water and Sewer Department, that includes mapping and karst characterization of the Floridan aquifer system in southeastern Florida. Twenty columniform seismic
Authors
Kevin J. Cunningham, Joann F. Dixon, Richard L. Westcott, Sean Norgard, Cameron Walker
Statistical approach to neural network imaging of karst systems in 3D seismic reflection data
The current lack of a robust, standardized technique for geophysical mapping of karst systems can be attributed to both the complexity of the environment and prior technological limitations. Abrupt lateral variations in physical properties that are inherent to karst systems generate significant geophysical noise, challenging conventional seismic signal processing and interpretation. Modern applica
Authors
Daniel Ebuna, Jared W. Kluesner, Kevin J. Cunningham, Joel H. Edwards
Sequence stratigraphy, seismic stratigraphy, and seismic structures of the lower intermediate confining unit and most of the Floridan aquifer system, Broward County, Florida
Deep well injection and disposal of treated wastewater into the highly transmissive saline Boulder Zone in the lower part of the Floridan aquifer system began in 1971. The zone of injection is a highly transmissive hydrogeologic unit, the Boulder Zone, in the lower part of the Floridan aquifer system. Since the 1990s, however, treated wastewater injection into the Boulder Zone in southeastern Flor
Authors
Kevin J. Cunningham, Jared W. Kluesner, Richard L. Westcott, Edward Robinson, Cameron Walker, Shakira A. Khan
Lithofacies and sequence stratigraphic description of the upper part of the Avon Park Formation and the Arcadia Formation in U.S. Geological Survey G–2984 test corehole, Broward County, Florida
Rock core and sediment from U.S. Geological Survey test corehole G–2984 completed in 2011 in Broward County, Florida, provide an opportunity to improve the understanding of the lithostratigraphic, sequence stratigraphic, and hydrogeologic framework of the intermediate confining unit and Floridan aquifer system in southeastern Florida. A multidisciplinary approach including characterization of sequ
Authors
Kevin J. Cunningham, Edward Robinson
Geostatistical borehole image-based mapping of karst-carbonate aquifer pores
Quantification of the character and spatial distribution of porosity in carbonate aquifers is important as input into computer models used in the calculation of intrinsic permeability and for next-generation, high-resolution groundwater flow simulations. Digital, optical, borehole-wall image data from three closely spaced boreholes in the karst-carbonate Biscayne aquifer in southeastern Florida ar
Authors
Michael Sukop, Kevin J. Cunningham
Seismic-sequence stratigraphy and geologic structure of the Floridan aquifer system near "Boulder Zone" deep wells in Miami-Dade County, Florida
The U.S. Geological Survey, in cooperation with the Miami-Dade Water and Sewer Department, acquired, processed, and interpreted seismic-reflection data near the North and South District “Boulder Zone” Well Fields to determine if geologic factors may contribute to the upward migration of injected effluent into that upper part of the Floridan aquifer system designated by the U.S. Environmental Prote
Authors
Kevin J. Cunningham
Lattice Boltzmann methods applied to large-scale three-dimensional virtual cores constructed from digital optical borehole images of the karst carbonate Biscayne aquifer in southeastern Florida
Digital optical borehole images at approximately 2 mm vertical resolution and borehole caliper data were used to create three-dimensional renderings of the distribution of (1) matrix porosity and (2) vuggy megaporosity for the karst carbonate Biscayne aquifer in southeastern Florida. The renderings based on the borehole data were used as input into Lattice Boltzmann methods to obtain intrinsic per
Authors
Michael Sukop, Kevin J. Cunningham
Geologic and hydrogeologic frameworks of the Biscayne aquifer in central Miami-Dade County, Florida
Evaluations of the lithostratigraphy, lithofacies, paleontology, ichnology, depositional environments, and cyclostratigraphy from 11 test coreholes were linked to geophysical interpretations, and to results of hydraulic slug tests of six test coreholes at the Snapper Creek Well Field (SCWF), to construct geologic and hydrogeologic frameworks for the study area in central Miami-Dade County, Florida
Authors
Michael A. Wacker, Kevin J. Cunningham, John H. Williams
Integration of seismic-reflection and well data to assess the potential impact of stratigraphic and structural features on sustainable water supply from the Floridan aquifer system, Broward County, Florida
The U.S. Geological Survey and Broward County water managers commenced a 3.5-year cooperative study in July 2012 to refine the geologic and hydrogeologic framework of the Floridan aquifer system (FAS) in Broward County. A lack of advanced stratigraphic knowledge of the physical system and structural geologic anomalies (faults and fractures originating from tectonics and karst-collapse structures)
Authors
Kevin J. Cunningham
Characterization of the porosity distribution in the upper part of the karst Biscayne aquifer using common offset ground penetrating radar, Everglades National Park, Florida
The karst Biscayne aquifer is characterized by a heterogeneous spatial arrangement of porosity and hydraulic conductivity, making conceptualization difficult. The Biscayne aquifer is the primary source of drinking water for millions of people in south Florida; thus, information concerning the distribution of karst features that concentrate the groundwater flow and affect contaminant transport is c
Authors
Gregory S. Mountain, Xavier Comas, Kevin J. Cunningham