Data

This dataset accompanies two proposed publications, "Descriptions and age constraints for new Jurassic flora fossils in west-central Sonora, Mexico: Results from U-Pb zircon geochronology, Sr-Nd isotopes, and megafossil taxa" and "Summary of Paleozoic and Mesozoic Rocks in Sonora and northern Sinaloa, Mexico", which will both report zircon SHRIMP-RG U-Pb ages and whole-rock isotope...

This dataset consists of three turbidite sandstone samples that were analyzed for U-Pb detrital zircon ages. The dataset accompanies the publication "An empirical test of Maximum Depositional Age through paired LA-ICP-MS and CA-ID-TIMS detrital zircon analysis: implications for the "Nevadan orogeny" in the Sierra Nevada foothills, California, U.S.A.", as well as planned future...

These data, modified from Horton and San Juan (2016), are a consolidation of point and polygon features representing mine and prospect-related symbols shown on U.S. Geological Survey (USGS) 7.5- and 15-minute topographic maps from the Historical Topographic Map Collection (HTMC). This consolidation supports more accurate counts of mine features represented in the database, which are...

This dataset includes rock magnetic susceptibility and gamma ray spectrometry measurements from 204 outcrops in southwest Montana during 2025. The measurements were collected to understand the causative sources of airborne magnetic and radiometric survey anomalies in the Idaho-Montana porphyry belt. Sixteen magnetic susceptibility measurements were collected at each analyzed site using a...

Geochemical data included were generated as part of the Critical Minerals Mapping Initiative (CMMI). Individual samples are classified according to the Hofstra et al. (2021) CMMI deposit classification scheme. The goal of CMMI is to collaborate with Geoscience Australia and the Geological Survey of Canada to build a global database of critical minerals in a variety of ore deposits. The...

This data release provides digital flight-line and gridded data for a high-resolution airborne magnetic and radiometric survey over parts of central and northeastern Florida and southeastern Georgia. The survey was acquired as part of the USGS Earth Mapping Resource Initiative (Earth MRI) to improve our understanding of the fundamental geologic framework of the region with applications...

This data release provides digital flight-line and gridded data for a high-resolution airborne magnetic and radiometric survey over Puerto Rico, the islands of Vieques and Culebra, and the surrounding shelf. The survey was acquired through funding from the USGS Earth Mapping Resource Initiative (Earth MRI), the USGS Coastal and Marine Resources and Hazards Program, and the USGS...

This data release provides digital flight-line and gridded data for a high-resolution airborne magnetic and radiometric survey over parts of Maryland, Pennsylvania, and West Virginia. The survey was acquired as part of the USGS Earth Mapping Resource Initiative (Earth MRI) to improve our understanding of the fundamental geologic framework of the region with applications to evaluating...

Airborne electromagnetic (AEM) and magnetic survey data were collected from December 2022 through March 2023 over a distance of 11,079 line kilometers in western Nevada and eastern California; central Nevada; and northern Nevada and southeastern Oregon. These data were collected in support of the U.S. Geological Survey (USGS) Earth Mapping Resources Initiative (Earth MRI), which aims to...

This U.S. Geological Survey (USGS) data release contains data from stream water, groundwater, and stream sediment samples collected in August 2023 in the East Mancos River watershed in southwestern Colorado. Data were collected as part of a study aimed at identifying sources of elevated metal concentrations in the stream. Eighteen streambank wells were installed in pairs at nine...

This data release provides digital flight line data for a high-resolution airborne magnetic and radiometric survey over the Sierra Madre-Elkhead Mountains-Medicine Bow Mountains region of southern Wyoming and northern Colorado. The airborne survey was funded by the Earth Mapping Resources Initiative. The survey was designed to meet complementary needs related to geologic mapping and

This data release contains digital radiometric flight line data for a high-resolution airborne magnetic and radiometric survey over southeastern Illinois, western Kentucky, and southern Indiana, 2019 (version 2.0, August 2025). Data and documentation for the original version, including associated airborne magnetic data, can be found at https://doi.org/10.5066/P9R05B0M. The airborne...