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This Collection of Coal Field Measured Sections consists of handwritten descriptions of rock unit sequences measured along roads, railroads, trails, and strip mine highwalls in the Tennessee coal fields. Most of the collection is composed of sections measured by Dr. Harold Wanless during his study of the southern Appalachian coal fields in the late 1930's. Most of the sections are unpublished, except for being included as columnar section illustrations in - Wanless, H.R., 1946, Pennsylvanian geology of a part of the southern Appalachian coal field: Geological Society of America Memoir, 13, 162 p. Other measured sections in this collection originate from published and unpublished sources.
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This collection of Tennessee Valley Authority (TVA) documents consists of published and unpublished reports, memoranda, and maps related to mineral resource investigations and hydroelectric dam site geotechnical studies throughout the TVA region. They have been acquired as a result of the close association between TGS and TVA staff over many decades. Users please note that there are also additional unpublished TVA documents contained in the Tennessee Geological Survey Mineral Resources Collection. The documents are all available in digital format as Portable Document Format (PDF) files. High resolution tagged image format (tif) files are available for the large plates. Currently all of the original documents are...
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Note: There is an updated version of this data release, available here: https://doi.org/10.5066/P92R4OL2 A helicopter-borne electromagnetic/magnetic survey was flown over the Stillwater area, southwest Montana from May 5 to May 16, 2000. The survey was conducted over the Stillwater Igneous Complex, a Precambrian layered mafic-ultramafic intrusion which is characterized by igneous layering. Electromagnetic data were acquired using DIGHEM helicopter-borne electromagnetic system. Magnetic data were collected with optically pumped Cesium Vapor Geometrics G822 magnetometer. Sensor elevation above ground was measured with Honeywell/Sperry AA220 radar. The nominal elevation of the sensor was 60 meters. Survey coverage...
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The data consists of daily evaporation measurements/estimates for the time period November 28, 2001 to December 16, 2019. These data are derived from Bowen ratio energy budget computations of actual evaporation based on meteorological and water temperature data at the USGS Reedy Lake evaporation station (USGS station number 282458081364800). This station is located near the center of a lake within the Lake Wales Ridge physiographic province at location 28 degrees 24 minutes 58 seconds North / 081 degrees 36 minutes 48 seconds West within Orange County, Florida. The black water (tannic) lake is crudely circular in shape (minimum and maximum diameters of 750 and 920 meters) and is largely surrounded by forests. The...
This core hole log collection consists of written descriptions of lithologies encountered during the drilling phase of various coal exploration programs in Tennessee. Descriptions range from detailed to brief. Information obtained primarily from diamond core drilling with additional information from rotary drilling and e-logs. Drill hole depths range from tens to thousands of feet deep. Individual drill holes were originally located by using the Tennessee State Plane Coordinate System (NAD 27). Quadrangles with abundant drill holes have accompanying drill hole location maps.
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This dataset accompanies planned publication 'Conditions, mechanisms, and timing of high-grade metamorphism and ductile deformation of the southern segment of the Central Anatolian Ophiolite'. The Ar/Ar data are for samples that record the metamorphic deformation of the ophiolite. The geochronology provides time constraints for the deformation studied in the manuscript. Samples were collected from the Central Anatolian Ophiolite by Molly Radwany and Donna Whitney, who sent them to the USGS for Ar/Ar analysis.
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This dataset accompanies planned publication 'Timing of Hydrothermal Alteration and Au-Sb-W Mineralization, Stibnite-Yellow Pine District, Idaho'. The Ar/Ar data is for samples that record the mineralization of the area. The geochronology provides time constraints for the mineralization studied in the manuscript. Samples were collected from the Yellow Pine region, and collection was done by numerous USGS scientists, who sent them to the USGS Denver Argon Geochronology Laboratory for Ar/Ar analysis.
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This dataset contains scenario based model projections (2001-2100) of land use related water demand for the California Central Coast in support of the published manuscript "Land-Use Change and Future Water Demand in California’s Central Coast" in the journal Water Resources Research. We used a modified version of the USGS's LUCAS model to examine two future scenarios of future land use and associated water use demand, from 2001 to 2100 across 10 Monte Carlo simulations. We examined a range of potential water demand futures sampled from a 24-year record of historical (1992-2016) data to develop two future land change scenarios including a business-as-usual (BAU) scenario which sampled from the full historical land...
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This dataset accompanies planned publication 'Gondwanan inheritance on the building of the western Central Andes (Domeyko Range, Chile): Structural and thermochronological approach (U-Pb and 40Ar-39Ar)'. The Ar/Ar data is for samples that record the sedimentation of the area. The geochronology provides time constraints for the sedimentation studied in the manuscript. Samples were collected from the Domeyko Range by Mauricio Espinoza (University of Concepcion, Chile), who sent them to the USGS Denver Argon Geochronology Laboratory for Ar/Ar analysis.
This dataset provides the data associated with a 2015 project to examine factors affecting the occupancy of Gulf Coast Waterdogs along Bayou Lacombe, Saint Tammany Parish, Louisiana. Data include site locations and distance from headwaters, water data (pH, turbidity, salinity, and depth), and capture data from trap checks. For Necturus beyeri captures, the datatset provides the sex of captures and length and mass measurements. The dataset states whether eggs were visible in females, whether each animal was swabbed for disease and whether tissue was clipped for genetics.


    map background search result map search result map Collection of Coal Field Measured Sections from Tennessee Collection of Tennessee Valley Authority Documents from Tennessee Collection of Coal Exploration Core Hole Logs from Tennessee Airborne electromagnetic and magnetic survey data, Stillwater Complex, Montana, May 2000 Argon data for Central Andes (Domeyko Range, Chile) Land-Use Change and Future Water Demand in California’s Central Coast - Data Release (2020) Argon data for Central Anatolian Ophiolite Argon data for Yellow Pine Data from a 2015 trapping survey targeting the Gulf Coast Waterdog, Necturus beyeri, in Saint Tammany Parish, Louisiana Evaporation at Reedy Lake, daily data, Orange County, Florida, November 28,2001 - December 16, 2019 Evaporation at Reedy Lake, daily data, Orange County, Florida, November 28,2001 - December 16, 2019 Argon data for Yellow Pine Argon data for Central Anatolian Ophiolite Data from a 2015 trapping survey targeting the Gulf Coast Waterdog, Necturus beyeri, in Saint Tammany Parish, Louisiana Argon data for Central Andes (Domeyko Range, Chile) Land-Use Change and Future Water Demand in California’s Central Coast - Data Release (2020) Collection of Coal Field Measured Sections from Tennessee Collection of Coal Exploration Core Hole Logs from Tennessee Collection of Tennessee Valley Authority Documents from Tennessee