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In support of paleoclimatology investigations, samples of mammillary calcite, calcitic folia, and flowstone were collected by the U.S. Geological Survey in Devils Hole and Devils Hole Cave 2, Nevada, between 1983 and 1996. These samples came from about 60 m below to 9 m above the modern water table in these caverns. To determine δ18O and δ13C time series spanning the interval 567.7–4.5 ka, more than a thousand samples were milled and analyzed for their δ18O and δ13C values. To determine time-series ages, more than a hundred samples were analyzed using uranium-series dating. Many of these measurement results have not been published. Herein, we provide previously unpublished δ13C and δ18O values, and we provide unpublished...
Categories: Data;
Tags: Death Valley National Park,
Devils Hole,
Devils Hole Cave 2,
USGS Science Data Catalog (SDC),
carbon,
The nature of carbon (C) cycling in the vadose zone where groundwater is in contact with abundant gas-filled voids is poorly understood. The objective of this study was to trace C cycling in a karst landscape using stable-C isotopes, with emphasis on a shallow groundwater flow path through the soil, to an underlying cave, and to the spring outlet of a cave stream in the Ozark Plateaus of northwestern Arkansas. Blowing Spring Cave (BSC) occurs in the Springfield Plateau of the Ozark Plateaus. The cave passage is relatively horizontal, the entrance to BSC is a spring outlet, and no other human-sized entrances into the cave are known to occur. Soils generally are less than 2 to 3 meters thick above the cave and dominated...
Categories: Data;
Types: Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
Shapefile;
Tags: Arkansas,
Geochemistry,
Hydrogeology,
Ozark,
Soil Sciences,
This dataset includes single point airflow monitoring data collected with an ultrasonic anemometer (velocity and direction) recorded at five selected locations in a commercial cave in Greene County, Missouri. The data was collected as part of a larger effort to monitor air contamination in commercial caves by the Missouri Department of Natural Resources.
This dataset includes airflow monitoring data using an ultrasonic anemometer (velocity and direction), manual check measurements at three locations in the borehole using a handheld hotwire anemometer, and temperature data recorded adjacent to a 22 inch borehole at a commercial cave in Greene County, Missouri. The borehole was drilled to supplement primary ventilation for the cave, and this data documents the airflow into and out of the borehole, as well as the temperature of outside air. This data was collected as part of a larger effort to monitor air quality in Missouri commercial caves by the Missouri Department of Natural Resources.
Categories: Data;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Cave,
environment
In 2019, dye tracing investigations were conducted near Manitou Cave in Dekalb County, northeast Alabama. The purpose of the dye tracing was to delineate a recharge area for the stream in Manitou Cave, a 1.7-kilometer-long stream cave and the only known habitat for the Manitou Cavesnail (Antroribus breweri). In 2010, the U.S. Fish and Wildlife Service was petitioned by the Center for Biological Diversity to federally list the Manitou Cavesnail. However, before any listing or vulnerability designation can occur, more knowledge was required, specifically regarding potential threats to the snail. With regards to the Manitou Cavesnail, this required delineating a recharge for the stream in Manitou Cave in order to determine...
Categories: Data;
Types: ArcGIS REST Map Service,
ArcGIS Service Definition,
Downloadable,
Map Service;
Tags: Alabama,
Antroribus breweri,
Aquatic Biology,
Dekalb County,
Fort Payne,
Dye tracing investigations were conducted in Cades Cove and Tuckaleechee Cove, two carbonate fensters in the western Great Smoky Mountains. These investigations were conducted as part of a two-year study examining the karst hydrology in the carbonate fensters. Main objectives of the dye tracing investigations were to determine resurgences for cave systems, delineate recharge areas for major springs, and to compare travel times from sink (dye injection point) to resurgence (monitoring site) for the two coves. Over the two-year study period (2017-2018), four different rounds of dye injections were completed, and each round had four dye injection locations, with the exception of the fourth round in September 2018,...
Categories: Data;
Types: ArcGIS REST Map Service,
ArcGIS Service Definition,
Downloadable,
Map Service;
Tags: Abrams Creek,
Appalachian Mountains,
Blount County,
Cades Cove,
Great Smoky Mountains,
This dataset includes airflow monitoring data (velocity and direction) and temperature data recorded at several locations in a commercial cave in Greene County, Missouri. These data were collected as part of a larger effort by the Missouri Department of Natural Resources to monitor air quality in Missouri commercial caves. The data set includes single-point airflow measurements using an ultrasonic anemometer at five locations within the cave. Airflow measurements using an ultrasonic anemometer and manual check measurements using a handheld hotwire anemometer also were made in a 22-inch diameter vent shaft upcave (further from the entrance) of the commercial tour route. In addition, outside air temperature also was...
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