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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Lake Erie hydroacoustic vessel comparison data: research vessels vs. uncrewed surface vessel Lake Erie hydroacoustic vessel comparison data: research vessels vs. uncrewed surface vessel
This dataset is from a vessel comparison study between four motorized research vessels (RVs) and one uncrewed surface vessel (USV) including the Ohio Department of Natural Resources (ODNR) RV Almar and RV Grandon, the U.S. Geological Survey (USGS) RV Muskie, the Ontario Ministry of Natural Resources (OMNR) RV Erie Explorer and a wind propelled USV (SD-1080; Saildrone Inc.). Paired...
Whole-Rock Geochemistry of Samples from the Bear Lodge Alkaline Complex, Wyoming: Data Supporting Petrogenetic and Mineral Resource Studies Whole-Rock Geochemistry of Samples from the Bear Lodge Alkaline Complex, Wyoming: Data Supporting Petrogenetic and Mineral Resource Studies
Geochemical data include major, minor and trace element results for alkaline silicate igneous rock samples from the Bear Lodge alkaline complex. Samples were collected during field work from natural exposures/outcrops and drill core. Samples were analyzed by the GeoAnalytical Lab at Washington State University and U.S. Geological Survey contract laboratories, AGAT Labs and SGS Labs...
Digital database for the Geologic map of the Mohave Mountains area, Mohave County, western Arizona Digital database for the Geologic map of the Mohave Mountains area, Mohave County, western Arizona
This geologic database is a digitized version of the original 1:48,000-scale analog geologic map titled "Geologic map of the Mohave Mountains area, Mohave County, western Arizona", published by the U.S. Geological Survey (USGS) in 1999. The Mohave Mountains area surrounds Lake Havasu City, Arizona, in the Basin and Range physiographic province. The Mohave Mountains and the Aubrey Hills...
Modeled smallmouth bass entrainment and population growth rates in the Colorado River in Glen and Grand Canyons in support of resource impact analysis for Post-2026 reservoir operational alternatives Modeled smallmouth bass entrainment and population growth rates in the Colorado River in Glen and Grand Canyons in support of resource impact analysis for Post-2026 reservoir operational alternatives
These data were compiled in support of the Post-2026 Operational Guidelines and Strategies for Lake Powell and Lake Mead (Post 2026) Environmental Impact Statement (EIS). These data were outputs from models that estimate annual smallmouth bass entrainment through Glen Canyon Dam and annual smallmouth bass population growth rate (lambda) in the Colorado River below Glen Canyon Dam. The...
Argon geochronologic data from New Zealand's Ruapehu and Tongariro Volcanoes used to illustrate geochronology systematics Argon geochronologic data from New Zealand's Ruapehu and Tongariro Volcanoes used to illustrate geochronology systematics
Understanding the eruptive histories and petrogenetic models that underpin hazard assessments at active volcanoes typically requires high-precision ages for late Pleistocene to Holocene lava flows. These data vary in quality, typically related to textural and chemical variations in lava flow samples. These samples were part of an existing 40Ar/39Ar dataset for andesitic-dacitic rocks...
qPCR data from eDNA autosampler surveys for salmon migrating through the Lake Washington Ship Canal, June - September 2022 qPCR data from eDNA autosampler surveys for salmon migrating through the Lake Washington Ship Canal, June - September 2022
The content contains metadata from an eDNA survey that assessed the efficacy of an autonomous eDNA sampler for tracking Chinook, sockeye, and coho salmon migrating through the Lake Washington Ship Canal between June and September 2022.