Allan K Clark

Geospatial Dataset for the Geologic Framework and Hydrostratigraphy of the Edwards and Trinity Aquifers Within Parts of Bandera and Kendall Counties, Texas, at 1:24,000

The karstic Edwards and Trinity aquifers are classified as major sources of water in south-central Texas by the Texas Water Development Board, and both are classified as major aquifers by the State of Texas. The purpose of this data release is to present the data that were collected and compiled to describe the geologic framework and hydrostratigraphy within parts of Bandera and Kendall Counties, Texas, in order to help water managers, water purveyors, and local residents better understand and manage water resources. The scope of the larger work and this accompanying data release is focused on the geologic framework and hydrostratigraphy of the outcrops and hydrostratigraphy of the Edwards and Trinity aquifers within...

Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Bandera, Bandera County, Basal nodular Member, Boerne, Burrowed Member, All tags... Burt Ranch Member, Cibolo Creek, Cow Creek Limestone, Cretaceous, Dolomitic Member, Early Cretaceous, Edwards Group, Edwards aquifer, Fort Terrett Formation, Glen Rose Limestone, Grainstone Member, Hensell Sand, Hydrology, Kendall County, Kirschberg Evaporite Member, Lower member of the Glen Rose Limestone, Medina River, Pearsall Formation, Segovia Formation, Stratigraphy, Texas, Trinity Group, Trinity aquifer, USGS Science Data Catalog (SDC), Upper member of the Glen Rose Limestone, geoscientificInformation, Fewer tags

Data release for bedrock geology and hydrostratigraphy of the Edwards and Trinity Aquifers within the Driftwood and Wimberley 7.5-Minute Quadrangles, Hays and Comal Counties, Texas at 1:24,000 scale

The Edwards and Trinity aquifers are major sources of water in south-central Texas and are both classified as major aquifers by the State of Texas. The population in Hays and Comal Counties is rapidly growing, increasing demands on the area's water resources. To help effectively manage the water resources in the area, refined maps and descriptions of the geologic structures and hydrostratigraphic units (HSUs) of the aquifers are needed. This digital map database presents the detailed 1:24,000-scale bedrock hydrostratigraphic map as well as names and descriptions of the geologic and hydrostratigraphic units of the Driftwood and Wimberley 7.5-minute quadrangles in Hays and Comal Counties, Tex. These digital data...

Categories: Data; Types: Citation; Tags: Balcones fault zone, Blanco River, Comal County, Corbula bed, Cretaceous, All tags... Edwards Group, Edwards aquifer, Geomorphology, Hays County, Hydrogeology, Kainer Formation, Lower Glen Rose Limestone, New Braunfels, Person Formation, San Antonio, Structural Geology, Texas, Trinity Group, Trinity aquifer, USA, USGS Science Data Catalog (SDC), United States, Upper Glen Rose Limestone, Washita Group, Wimberley, Woodcreek, bedrock geology, fault, groundwater, hydrogeology, hydrostratigraphy, karst, lithology, Fewer tags

Geospatial Dataset for the Geologic Framework and Hydrostratigraphy of the Edwards and Trinity Aquifers Within Northern Bexar and Comal Counties, Texas, at 1:24,000 scale

The Edwards and Trinity aquifers are major sources of water for agriculture, industry, and urban and rural communities in south-central Texas. Both the Edwards and Trinity aquifers are classified as major aquifers by the State of Texas. The dissolution of the carbonate rocks composing the Edwards and Trinity aquifers results in distinctive landforms rich in both springs and karst features (caves, sinkholes, and other visible areas of solution-enlarged porosity). Previous studies such as those by the U.S. Geological Survey (USGS) and the Texas Bureau of Economic Geology (BEG) have mapped the geology, hydrostratigraphy, and structure in these areas at various scales. The purpose of this data release is to present...

Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Balcones fault zone, Bexar County, Blanco River, Bulverde, Canyon Lake, All tags... Cibolo Creek, Cow Creek Limestone Member, Cretaceous, Edwards Group, Edwards Plateau, Edwards aquifer, Glen Rose Limestone, Hammett Shale Member, Hensell Sand Member, Hydrology, Information Sciences, Kainer Formation, Little Blanco River, New Braunfels, Person Formation, San Antonio, Structural Geology, Texas, Trinity Group, Trinity aquifer, USGS Science Data Catalog (SDC), Water Resources, geologic framework, geology, geoscientificInformation, hydrogeology, hydrostratigraphy, karst, lower member of the Glen Rose Limestone, upper member of the Glen Rose Limestone, Fewer tags

Geospatial Dataset for the Geologic Framework and Hydrostratigraphy of the Edwards and Trinity Aquifers within Northern Medina County, Texas at 1:24,000

This data release supports the U.S. Geological Survey Scientific Investigation Map (SIM) by Clark and others (2020) by documenting the data used to create the geologic maps and describes the geologic framework and hydrostratigraphy of the Edwards and Trinity aquifers for a 442 square-mile area in northern Medina County in south Texas. The karstic Edwards and Trinity aquifers that are the subject of the SIM by Clark and others (2020) are classified as major sources of water in south-central Texas by the Texas Water Development Board (George and others, 2011). The geologic framework and hydrostratigraphy of the Edwards and Trinity aquifers largely control groundwater flow paths and storage in northern Medina County...

Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Austin Group, Devils River Limestone, Devils River Trend, Diversion Lake, Eagle Ford Group, All tags... Edwards Group, Edwards aquifer, Geography, Glen Rose Limestone, Haby Crossing fault, Hondo, Hondo Creek, Hydrology, Kainer Formation, Maverick Basin, Medina County, Medina Lake, Medina Lake fault, Medina River, Parker Creek fault, Person Formation, San Marcos Platform, Seco Creek, Stratigraphy, Structural Geology, Taylor Group, Texas, Trinity aquifer, Trinity group, USGS Science Data Catalog (SDC), Verde Creek, Washita Group, Water Resources, Woodard Cave fault, digitization, geography, geologic contacts, geologic maps, geology, geoscientificInformation, geospatial datasets, groundwater, hydrogeology, hydrostratigraphy, karst, porosity, stratigraphic thickness, stratigraphy, surficial geologic units, Fewer tags

Geospatial Dataset of the Geologic Framework and Hydrostratigraphy of the Edwards and Trinity Aquifers within Hays County, Texas at 1:24,000 scale

The Texas Water Development Board classifies the karstic Edwards and Trinity aquifers as major sources of water in south-central Texas. To effectively manage the water resources in the area, detailed maps and descriptions of the geologic framework and hydrostratigraphic units of the aquifers outcropping in Hays County, Tex. are needed. In 2016 and 2018, the U.S. Geological Survey, in cooperation with the Edwards Aquifer Authority, mapped the geologic framework and hydrostratigraphy of the Edwards and Trinity aquifers within Hays County, Tex. at 1:24,000 scale. These digital data accompany Clark, A.K., Pedraza, D.E., and Morris, R.R., 2018, Geologic framework and hydrostratigraphy of the Edwards and Trinity aquifers...

Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Austin Group, Balcones fault zone, Barton Creek, Blanco River, Buda, All tags... Corbula bed, Cretaceous, Dripping Springs, Eagle Ford Group, Edwards Group, Edwards aquifer, Hays County, Hydrogeology, Kainer Formation, Kyle, Little Blanco River, Loriolia bed, Lower Glen Rose Limestone, Person Formation, San Marcos, San Marcos River, Taylor Group, Texas, Trinity Group, Trinity aquifer, USGS Science Data Catalog (SDC), Upper Glen Rose Limestone, Washita Group, Water Resources, Wimberley, bedrock geology, fault, groundwater, hydrogeology, hydrostratigraphy, karst, lithology, Fewer tags