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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Whole-Rock Geochemical Data for Cenozoic Silicic Igneous and Hydrothermal Rocks from Colorado, New Mexico, Arizona, Nevada, and California Whole-Rock Geochemical Data for Cenozoic Silicic Igneous and Hydrothermal Rocks from Colorado, New Mexico, Arizona, Nevada, and California
This data release presents whole-rock geochemical data for a suite of silicic igneous and magmatic-hydrothermal rocks from the western Cordillera of the United States. Samples were mainly collected from Eocene to Miocene high-silica igneous rocks and other nearby igneous and hydrothermal±magmatic rocks. These data were collected to help define highly evolved magma systems that can be...
Cenozoic Highly Evolved Rhyolites of the Western Cordillera of the Conterminous United States Cenozoic Highly Evolved Rhyolites of the Western Cordillera of the Conterminous United States
The use of data analytics and digital mineral prospectivity mapping has become increasingly important to mineral resource assessment in recent years. Necessary information for many forms of such modeling are expert-validated training sets. Previous work defined occurrence and grade and tonnage models for Climax-type porphyry molybdenum deposits (Singer and others, 1986; Ludington and...
Detection data of acoustic telemetry tags from Walleye and Grass Carp in the Sandusky River and Bay, OH (2014-2021) Detection data of acoustic telemetry tags from Walleye and Grass Carp in the Sandusky River and Bay, OH (2014-2021)
This data set includes acoustic telemetry detection data and biological attributes for walleye and grass carp in the Sandusky River and Bay, OH. The detection data also includes information about the receivers that recorded the detection of acoustic telemetry tags implanted in walleye and grass carp from from 2014 to 2021. Receiver attributes include location and deployment history of...
Raman spectral parameters of pyrolyzed samples for three types of graptolites Raman spectral parameters of pyrolyzed samples for three types of graptolites
A series of gold tube pyrolysis experiments (72 hrs, 300–600 °C) conducted on a graptolite-rich lower Paleozoic marine shale generated pyrolysis residues for a comprehensive evaluation of the molecular and structural variability of three types of graptolite periderm, namely granular, non-granular, and nodular graptolite. Raman spectroscopy in combination with organic petrology and field...
Airborne magnetic and radiometric survey, central Arkansas and southern Missouri, 2023 Airborne magnetic and radiometric survey, central Arkansas and southern Missouri, 2023
This publication provides digital flight line data for a high-resolution magnetic and radiometric survey over part of central Arkansas and southern Missouri. The airborne geophysical survey was funded by the Earth Mapping Resources Initiative and was designed to meet the complimentary needs related to geologic mapping and mineral resource research. The survey covers an irregularly shaped...
Measurement of benthic invertebrates, zooplankton, stamp sands and metals from four beaches near Keweenaw Bay, Lake Superior in 2021 Measurement of benthic invertebrates, zooplankton, stamp sands and metals from four beaches near Keweenaw Bay, Lake Superior in 2021
Between 1900 and 1932, a copper (Cu) mine operated near Gay, Michigan, along the shore of Lake Superior, discharged approximately 22.8 million metric tons of waste material known as ‘stamp sands’ (SS) to a nearby beach. This pile of SS has migrated via wind and rain along the beaches in northern Grand Traverse Bay and into Buffalo Reef, an important spawning area for Lake Trout and Lake...