Geologist
Email:
ahourigan@usgs.gov
Office Phone:
615-837-4700
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The Little Sequatchie River and Pryor Cove Creek watersheds are located in southern Tennessee and drain the eastern escarpment of the Cumberland Plateau to the Sequatchie River. The Little Sequatchie River has the largest drainage area of any Sequatchie River tributary, with over 130 square miles in the topographic confines of the watershed. The hydrology of both watersheds has been largely altered by karst processes which have caused the majority of the streams to sink into the sub-surface, typically at the contact between the Mississippian Pennington Formation and the underlying Mississippian Bangor Limestone. A collaborative project between the U.S. Geological Survey and the U.S. Fish and Wildlife Service began...
Categories: Data;
Types: ArcGIS REST Map Service,
ArcGIS Service Definition,
Downloadable,
Map Service;
Tags: Bryant Cove,
Coppinger Cove,
Cumberland Plateau,
Grundy County,
Hydrology, All tags...
Little Sequatchie River,
Marion County,
Pryor Cove,
Pryor Cove Creek,
Sequatchie,
Sequatchie Valley,
Tennessee,
USGS Science Data Catalog (SDC),
Water Resources,
biota,
caves,
caves,
caves,
dye tracing,
dye tracing,
groundwater,
groundwater and surface-water interaction,
groundwater flow,
groundwater tracing,
hydrogeology,
karst,
karst,
karst areas,
karst hydrology,
karst topography,
water cycle, Fewer tags
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Karst hydrologic systems are important resources in the state of Tennessee both as drinking water resources and as centers for possible biological diversity. These systems are susceptible to contamination due to the inherent connectivity between surface water and groundwater in karst landscapes. A partnership between the U.S. Geological Survey (USGS) and Tennessee Department of Conservation (TDEC) was formed to investigate karst spring systems across the state utilizing fluorescent groundwater tracing, particularly in areas where these resources may be used as drinking water sources. In fall 2021, USGS and TDEC staff identified possible vulnerabilities or complexities that may exist within karst spring systems based...
Categories: Data;
Types: ArcGIS REST Map Service,
ArcGIS Service Definition,
Downloadable,
Map Service;
Tags: Boiling Fork Creek,
COWAN TENNESSEE KARST SPRING CAVE DYE TRACING TDEC USGS,
Cannon County, TN,
Cowan, TN,
Cumberland Plateau, All tags...
Dickson County, TN,
East Fork Stones River,
Eastern Highland Rim,
Franklin County, TN,
Jasper, TN,
Marion County, TN,
Sequatchie River,
Sequatchie Valley,
TENNESSEE DYE TRACING SPRINGS CAVES KARST GEOLOGY HYDROLOGY,
TENNESSEE KARST SPRING CAVE DYE TRACING TDEC USGS,
Tennesee Dye Tracing Karst Spring Cave Hydrology,
Tennessee,
Tennessee Springs Hydrology Geology Dye Tracing,
USGS Science Data Catalog (SDC),
Vanleer, TN,
Western Highland Rim,
Woodbury, TN,
biota,
caves,
caves,
dye tracing,
dye tracing,
groundwater,
groundwater and surface-water interaction,
groundwater tracing,
hydrogeology,
karst,
karst,
karst,
karst hydrology,
karst hydrology,
karst tn dye tracing water year 22,
karst topography, Fewer tags
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Karst hydrologic systems are important resources in the state of Tennessee both as drinking water resources and as centers for possible biological diversity. These systems are susceptible to contamination due to the inherent connectivity between surface water and groundwater systems in karst systems. A partnership between the U.S. Geological Survey (USGS) and Tennessee Department of Conservation (TDEC) was formed to investigate karst spring systems across the state utilizing fluorescent groundwater tracing, particularly in areas where these resources may be used as drinking water sources. In fall 2021, USGS and TDEC staff identified possible vulnerabilities or complexities that may exist within karst spring systems...
Categories: Data;
Types: ArcGIS REST Map Service,
ArcGIS Service Definition,
Downloadable,
Map Service;
Tags: Campbell County,
Cannon County,
Caryville,
Cowan,
Cumberland Plateau, All tags...
Dickson County,
Eastern Highland Rim,
Franklin County,
Hamblen County,
Hydrology,
Jasper,
Jefferson County,
Lafayette,
Macon County,
Marion County,
Morristown,
Tennessee,
Tennessee,
Tennessee Department of Environment and Conservation,
USGS Science Data Catalog (SDC),
Valley and Ridge,
Vanleer,
Water Resources,
Western Highland Rim,
Woodbury,
caves,
caves,
dye tracing,
dye tracing,
freshwater ecosystems,
groundwater,
groundwater and surface-water interaction,
groundwater flow,
hydrogeology,
karst,
karst,
karst areas,
karst hydrology,
karst hydrology,
springs, Fewer tags
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Fern Cave in Jackson County, Alabama is the longest and deepest cave in Alabama with over 15 miles of cave passages and 536 feet of depth. The cave is cooperatively managed by the U.S. Fish and Wildlife Service and the Southeastern Cave Conservancy. At least three different streams flow through the cave including the Surprise, Lower North, and Bottom Cave streams. Two of these streams, Lower North and Bottom Cave, merge together in the lower portions of the cave system while the Surprise stream remains independent of the others. These streams then appear as resurgences at springs along the Paint Rock River near the base of Nat Mountain. Recent bio-inventories have shown the cave to be one of the most bio-diverse...
Categories: Data;
Types: ArcGIS REST Map Service,
ArcGIS Service Definition,
Downloadable,
Map Service;
Tags: Alabama,
Cumberland Plateau,
Hydrology,
Jackson County,
Nat Mountain, All tags...
Paint Rock River,
USGS Science Data Catalog (SDC),
biota,
caves,
caves,
dye traces,
dye tracing,
dye tracing,
groundwater,
groundwater,
groundwater and surface-water interaction,
groundwater flow,
groundwater tracing,
hydrogeology,
karst,
karst,
karst,
karst hydrology,
karst hydrology,
karst topography,
recharge areas, Fewer tags
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