Data
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Maceral reflectance data for a release and recapture analysis of limited carbon mobilization in sediment adjacent to Central Atlantic Magmatic Province Sills, Florida, USA Maceral reflectance data for a release and recapture analysis of limited carbon mobilization in sediment adjacent to Central Atlantic Magmatic Province Sills, Florida, USA
Large Igneous Provinces (LIPs) are associated with dramatic changes to the Earth system; their rapid release of carbon to the surface environment may initiate catastrophic climatic changes that cause mass extinction. This carbon release is often associated with volcanic emissions, yet metamorphic carbon production during LIP events may be substantial. Metamorphic carbon devolatilization...
Database for the bedrock geologic map of the Eagle Lake quadrangle, Essex County, New York Database for the bedrock geologic map of the Eagle Lake quadrangle, Essex County, New York
The database for the geology of the 7.5-minute Eagle Lake quadrangle consists of deformed and metamorphosed Mesoproterozoic gneisses of the Adirondack Highlands unconformably overlain by weakly deformed lower Paleozoic sedimentary rocks of the Champlain Valley. The Mesoproterozoic rocks occur on the eastern edge of the Adirondack Highlands and represent an extension of the Grenville...
Database for the preliminary bedrock geologic map of the Port Henry quadrangle, Essex County, New York, and Addison County, Vermont Database for the preliminary bedrock geologic map of the Port Henry quadrangle, Essex County, New York, and Addison County, Vermont
The preliminary bedrock geologic map database of the 7.5-minute Port Henry quadrangle consists of deformed and metamorphosed Mesoproterozoic gneisses of the Adirondack Highlands unconformably overlain by weakly deformed lower Paleozoic sedimentary rocks of the Champlain Valley (fig. 1) on the published geologic map. The Mesoproterozoic rocks occur on the eastern edge of the Adirondack...
Portable X-ray fluorescence (pXRF), density, and magnetic susceptibility data from northeastern Washington State — Earth MRI Republic survey area Portable X-ray fluorescence (pXRF), density, and magnetic susceptibility data from northeastern Washington State — Earth MRI Republic survey area
This data release presents portable X-ray fluorescence (pXRF) data and physical properties (grain density, saturated bulk density, dry bulk density, and magnetic susceptibility) of 30 rock samples collected from an Earth MRI survey area in northeastern Washington, USA. Rock type information (age and lithology) are also included. The rock samples were initially collected for low...
Geochemical data from selected bedrock samples in the Deep River and Essex quadrangles, Middlesex and New London Counties, Connecticut Geochemical data from selected bedrock samples in the Deep River and Essex quadrangles, Middlesex and New London Counties, Connecticut
This data release comprises major and trace element geochemical data from ninety (90) selected bedrock samples in support of the identification, discrimination, and correlation of map units in the Deep River and Essex quadrangles, Middlesex County, Connecticut. In data tables, the attributes “map_unit_symbol” and "map_unit_name" correlate the sample to the map unit in a planned bedrock...
Metamorphic map of New Hampshire - A digital representation of the metamorphic map from the State bedrock geologic map of Lyons and others, 1997 Metamorphic map of New Hampshire - A digital representation of the metamorphic map from the State bedrock geologic map of Lyons and others, 1997
This data release provides a vector digital dataset developed from the published metamorphic map of New Hampshire. This data release is a digital representation of the metamorphic map shown on sheet 2 of the bedrock geologic map of Lyons and others (1997). The original publication from 1997 was available in paper only. A scanned raster version of the 1997 map was obtained from the...
Gamma ray spectrometry measurements of Ordovician strata at Tumbling Run, Virginia Gamma ray spectrometry measurements of Ordovician strata at Tumbling Run, Virginia
This dataset includes gamma ray spectrometry measurements from exposed Ordovician mixed carbonate and siliciclastic strata near Tumbling Run, Virginia; a regionally recognized reference section within the central Appalachians. Gamma ray measurements were collected on a continuous assay with a thirty second collection interval by walking one meter from the outcrop face using a GF...
Cosmogenic Al-26 and Be-10 exposure ages of blockslide deposits in Craig County, Virginia Cosmogenic Al-26 and Be-10 exposure ages of blockslide deposits in Craig County, Virginia
Craig County, Virginia hosts large (>500 m wide) blockslides and rock slumps along the southeastern slopes of several mountains. These features differ from Virginian boulder fields in several aspects, most significantly in soil development, foliage, and clast size. In contrast with freshly exposed, likely periglacial, boulder fields that commonly contain centimeter to meter-sized...
A Conodont Biostratigraphic and Color Alteration Index Dataset for New England: Maine, Vermont, Massachusetts, and parts of eastern New York, USA A Conodont Biostratigraphic and Color Alteration Index Dataset for New England: Maine, Vermont, Massachusetts, and parts of eastern New York, USA
For decades, researchers have recognized the functionality of using conodont elements in biostratigraphic investigations. A growing need now exists, however, for a digital dataset of fossil data. The New England conodont dataset is the region's first publicly accessible digital collection of previously published U.S. Geological Survey (USGS) conodont paleontological data and Color...
Greenhouse Gas Fluxes along a Tidal Gradient of Low Salinity Freshwater Forested Wetlands Greenhouse Gas Fluxes along a Tidal Gradient of Low Salinity Freshwater Forested Wetlands
A dynamic closed chamber system was used to measure in situ efflux rates of CO2, CH4, and N2O to the atmosphere from wetland soils along the Mattaponi and Pamunkey rivers. These greenhouse gas (GHG) flux measurements were taken quarterly from December 2015 to September 2017, at replicated hummock and hollow microtopography locations (where present) within each site. CO2 flux was measured...
Literature rates of measured methane fluxes from tidal wetland soils to the atmosphere Literature rates of measured methane fluxes from tidal wetland soils to the atmosphere
This data release reports a compilation of the literature that included measurements of both methane gas emission fluxes from the soil to atmosphere, and salinity, in different types of tidal wetlands around the globe. Rates were included for in situ measurements of methane flux in natural tidal wetlands but not experimental treatments or restored wetlands.
Early to Mid-Pliocene Sedimentological Data from the Yorktown Formation, near Jamestown, Virginia Early to Mid-Pliocene Sedimentological Data from the Yorktown Formation, near Jamestown, Virginia
Data consists of grain size distribution by weight in grams of samples collected from the Yorktown Formation from various localities along the James River near Smithfield and Williamsburg, Virginia. In total, data from 34 samples are included in this dataset.