Data Releases
The data collected and the techniques used by USGS scientists should conform to or reference national and international standards and protocols if they exist and when they are relevant and appropriate. For datasets of a given type, and if national or international metadata standards exist, the data are indexed with metadata that facilitates access and integration.
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Urban sediment and fallout radionuclide input characteristics of the Hickey Run watershed in Washington, D.C., USA for 2020-2022 Urban sediment and fallout radionuclide input characteristics of the Hickey Run watershed in Washington, D.C., USA for 2020-2022
This metadata record documents one comma delimited table that contains information on the grain size distribution, fallout radionuclide activity, and geochemical characteristics of urban sediments within the Hickey Run watershed in Washington, D.C. Measurements include radiological activity, sediment particle size information, and elemental composition of source and target sediments.
Greater Everglades Burmese Python Stable Isotope Data and Standard Ellipse Area Literature Review Greater Everglades Burmese Python Stable Isotope Data and Standard Ellipse Area Literature Review
Burmese pythons are an invasive species in the Greater Everglades Ecosystem. Burmese pythons captured in the ecosystem are euthanized, and in an effort to learn about this invasive species, all euthanized pythons are necropsied, during which time samples are collected. We analyzed the stable isotope ratios of carbon and nitrogen in muscle samples from 423 Burmese pythons euthanized and...
Peat Thickness Measurements from Grand Bay, Mississippi and Alabama Peat Thickness Measurements from Grand Bay, Mississippi and Alabama
Location and elevation data were collected along with peat auger cores during six U.S. Geological Survey (USGS) field activities from 2013-2018 in and around Grand Bay, Mississippi (MS) and Alabama (AL) and used by Smith and others (2024). Peat auger cores were described, photographed, and the thickness of the peat unit was measured with a measuring tape. Following collection, the...
In situ geochemical data for clinopyroxene in igneous rocks of the Bear Lodge and Mineral Hill alkaline complexes, Wyoming In situ geochemical data for clinopyroxene in igneous rocks of the Bear Lodge and Mineral Hill alkaline complexes, Wyoming
Major, minor, and trace element data, as well as backscattered electron images, were collected for clinopyroxene crystals in alkaline silicate rocks (phonolite, tephriphonolite, latite, phonotephrite, and pyroxenite) of the Bear Lodge and Mineral Hill alkaline complexes, Wyoming. Samples of alkaline rocks thought to represent early and later stages of magmatism, based on observed...
Major, minor, and trace element composition of black shales of the Virginia Formation, Minnesota Major, minor, and trace element composition of black shales of the Virginia Formation, Minnesota
Sixty samples of Paleoproterozoic Virginia Formation of the Animikie Group black shales were collected from two public drill cores (VHD-00-1; LWD-99-2) housed at the Minnesota Department of Natural Resources Drill Core Library in Hibbing, MN. The black shale samples were ground to a powder and subjected to several analyses. Trace elements were determined using multi-acid digestion and...
Short-Lived Radium-Isotope (Radium-223 and -224) Specific Activity for Samples Collected Between November 2022 and March 2024 Along the West Florida Shelf (Indian Rocks Beach, Nature Coast, and Venice Headland) Short-Lived Radium-Isotope (Radium-223 and -224) Specific Activity for Samples Collected Between November 2022 and March 2024 Along the West Florida Shelf (Indian Rocks Beach, Nature Coast, and Venice Headland)
In 2021, a collaborative scientific investigation (National Science Foundation Grant Award OCE-2148989, Project 880516) was started for the purpose of quantifying shelf inventories and boundary fluxes of dissolved organic nitrogen and dissolved iron to the West Florida Shelf (WFS) to assess their role in supporting the oligotrophic WFS ecosystem. To assess the spatial and temporal...