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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Ecological Model Support for the Western Everglades Restoration Project (WERP) Round Four of Four, 2020 Ecological Model Support for the Western Everglades Restoration Project (WERP) Round Four of Four, 2020
Ecological models facilitate evaluation and assessment of alternative approaches to restore the Greater Everglades ecosystem. However, the provision of useful and accessible models is a challenge because there is often a disconnect between model output and its use by decision makers. Joint Ecosystem Modeling (JEM) meets this challenge by providing ecological model output tailored to...
Zircon Trace Element Data for Igneous Units Related to Mineralization in the Eastern Yukon-Tanana Upland and nearby areas, Eastern Alaska Zircon Trace Element Data for Igneous Units Related to Mineralization in the Eastern Yukon-Tanana Upland and nearby areas, Eastern Alaska
From 2017-2019, framework metallogenic studies were completed in the eastern Yukon-Tanana upland in eastern Alaska. Numerous previously undated plutons known or suspected to contain components of porphyry, epithermal, and intrusion-related gold systems and associated deposit types were sampled for age and zircon trace element determinations between the Black Mountain area and the Yukon...
Data from an investigation of turtle basking behavior in the Atchafalaya Basin of south-central Louisiana in 2021 Data from an investigation of turtle basking behavior in the Atchafalaya Basin of south-central Louisiana in 2021
The dataset is comprised of game camera photos taken at known turtle basking structures in the Atchafalaya Basin's Little Alabama Bayou in south-central Louisiana. There was a spring camera deployment in April 2021 and a fall camera deployment in October 2021. Three game cameras were used in each deployment and photos were taken every two minutes for seven days for each camera. The...
40Ar/39Ar data from the Old Mine Park area, Trumbull, Connecticut 40Ar/39Ar data from the Old Mine Park area, Trumbull, Connecticut
This data release includes 40Ar/39Ar data from the U.S. Geological Survey for samples from Old Mine Park Area, Trumbull, Connecticut. Mineral samples were collected by Robert Wintsch and Harold Moritz. Potassium-bearing mineral grains were separated from the bulk sample and analyzed by argon geochronology at the U.S. Geological Survey Bascom ARgon Dating (BARD) Laboratory in Reston...
Electron microprobe and 40Ar/39Ar isotopic data from west-central New Hampshire Electron microprobe and 40Ar/39Ar isotopic data from west-central New Hampshire
This dataset accompanies planned publication 'Unmixing multiple metamorphic muscovite age populations with powder X-ray diffraction and 40Ar/39Ar analysis'. The 40Ar/39Ar and electron microprobe data are from samples adjacent to a lower greenschist facies shear zone in western New Hampshire. The geochronology coupled with the electron microprobe data provide a petrochronologic framework...
Two-dimensional HEC-RAS models and topo-bathymetric datasets for the Willamette River, Oregon Two-dimensional HEC-RAS models and topo-bathymetric datasets for the Willamette River, Oregon
This dataset contains two-dimensional hydraulic models throughout the Willamette River, extending from the McKenzie River confluence, near Eugene, to the city of Newberg. The study reach is separated into five individual models to simplify tributary inflow boundary conditions and for run-time efficiency. These models were developed to assess juvenile salmonid habitat at streamflows...