Data

This dataset consists of varietal modal, chemical, and isotopic analyses and petrographic observations made episodically from 1982-2026 on samples of igneous rocks and epigenetic minerals collected in the Goldfield district, Esmeralda County, Nevada, Tonopah district, Nye County, Nevada, Comstock Lode district, Storey, Washoe, and Lyon Counties, Nevada, and other districts in Nevada, and...

This data release presents data collected as part of a study focused on Canadian and U.S. transboundary rivers in the Pacific Northwest. Metal concentrations were measured in aquatic mosses and surface sediment samples collected from five Alaskan rivers (Alsek R., Taku R., Unuk R., Salmon R., Stikine R.) from 2019-2023. Metals included cadmium (Cd), copper (Cu), lead (Pb), zinc (Zn)...

Field maps and notes made during field mapping by C. M. Wentworth in 1960-63 provide primary data about the structure and rocks west of the San Andreas fault in the Gualala block between Fort Ross (Fort Ross quadrangle) and Galloway Creek (Saunders Reef quadrangle). Structure (bedding attitudes, faults) and lithologies (in 5 color categories) observed in the field are plotted on the maps...

This dataset includes a polygon shapefile (SWTR_Outcrops_ver2.shp) that describes areas of rock outcrop in the area of the Stillwater Complex, Montana. The Stillwater Complex is an Archean, ultramafic to mafic layered intrusion exposed in the Beartooth Mountains in south-central Montana. This igneous intrusion contains magmatic mineralization that is variably enriched in strategic and...

This Data Release comprises a lidar-mapped landslide inventory along the Quebrada de Utuado watershed, a tributary to the Rio Viví in the Utuado Municipality of Puerto Rico. The study area watershed is underlain primarily by quartz diorite of the Utuado batholith (Bawiec, 1998) and is part of an area that experienced some of the highest landslide concentrations from 2017 Hurricane Maria...

This dataset consists of 122 magnetotelluric (MT) soundings collected in 2016 in the northern Harrat Rahat, located near the holy city of Al-Madinah Al-Munawarah in Saudi Arabia. These data were collected as part of a joint project between the U.S. Geological Survey and the Saudi Geological Survey examining the volcanic hazard associated with the harrat. Imaging the 3-D electrical...

This dataset provides an overview of undeveloped and select developed magmatic sulfide deposits within the United States that contain nickel, copper, and the platinum-group elements. It summarizes what is known about their locations, sizes, and geology using publicly available data. The selected developed deposits (J-M Reef and Eagle) are included for the sake of comparison. These data...

This data release provides digital flight-line and gridded data for a high-resolution airborne magnetic and radiometric survey over a part of southwest Utah. The survey was acquired as part of the UGSS Earth Mapping Resource Initiative (Earth MRI) to improve our understanding of the fundamental geologic framework of the region with applications to evaluating natural resources and...

This report compiles structural orientations of rock fabrics measured at outcrops of metamorphic and plutonic rocks in part of the Ruby Mountains metamorphic core complex. Measurements are reported for foliations, lineations, elongation mylonitic lineations, fold axes, fold asymmetry, and fold axial planes, many of which are plotted directly on the Geologic map of the Ruby Dome...

Two industry seismic-reflection profiles in Chuckwalla Valley (southeastern California) were donated by Buckhorn Petroleum to the CALCRUST program in ~1987. USGS personnel Jeff Wilson, Eric Geist, and Jill McCarthy reprocessed the seismic reflection data, concentrating on imaging reflections below the Cenozoic basin fill using pre-stack techniques. This data release describes the...

These data were collected to measure methane (CH4) using a small uncrewed aircraft system (sUAS). Test flights occurred at the APEX fen site, located within Interior Alaska. The fen was instrumented with an eddy covariance flux tower, allowing us to compare sUAS-based CH4 flux emissions to flux tower-based values.

Magnetic susceptibility measurements in the vicinity of the Mesquite Hills, San Bernardino County, California. Susceptibility measurments, made with a Terraplus KT10 magnetic susceptibility meter, were collected on various igneous rocks in the Mesquite HIlls area to better characterize the magnetic properties of igneous rocks in the region. Mafic rocks in the areas are reliably magnetic...