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.
Filter Total Items: 16236
40Ar/39Ar geochronologic data for mafic and intermediate volcanic rocks in the vicinity of Henrys Fork caldera, Yellowstone Plateau volcanic field 40Ar/39Ar geochronologic data for mafic and intermediate volcanic rocks in the vicinity of Henrys Fork caldera, Yellowstone Plateau volcanic field
While the timing and composition of the Yellowstone Plateau volcanic field’s caldera-forming tuffs and rhyolite flows are well-characterized, the chronology of smaller-volume mafic eruptions is poorly known, thereby limiting our understanding of how mafic magmatism drives rhyolite volcanism, particularly Yellowstone’s large caldera-forming eruptions. To address this gap in knowledge, we...
Magnetic susceptibility and gamma ray spectrometry measurements in southwestern Montana, 2023-2024 Magnetic susceptibility and gamma ray spectrometry measurements in southwestern Montana, 2023-2024
This dataset includes rock magnetic susceptibility and gamma ray spectrometer measurements from 243 outcrops in southwest Montana during 2023-2024. 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...
A global database of porphyry copper deposits and prospects A global database of porphyry copper deposits and prospects
Porphyry copper deposits are the world's primary source of copper and can also host a variety of secondary commodities identified as critical by the U.S. Geological Survey (U.S. Geological Survey, 2022). These deposits occur primarily along convergent plate margins, and their metal association and geochemical characteristics are reflective of whether the deposit formed in continental...
Waikamoi and Hanawi Maui, forest bird malaria infection data 1993 -1996 Waikamoi and Hanawi Maui, forest bird malaria infection data 1993 -1996
This data publication contains information collected as part of a field and laboratory effort to determine prevalence of avian malaria (Plasmodium relictum) and pox-like lesions (Avipoxvirus spp.) in native and non-native forest birds on the northern, high elevation (>1500 m) slopes of Haleakala volcano on Maui during the last decade of the 20th century. Forest bird banding data and...
Ar isotope data for the Central Plateau Member of the Plateau Rhyolites, Yellowstone Plateau volcanic field Ar isotope data for the Central Plateau Member of the Plateau Rhyolites, Yellowstone Plateau volcanic field
At least 28 rhyolitic lava flows, domes, and tuffs erupted within Yellowstone caldera following its formation 631 ka. Understanding the timing of intracaldera eruptions is essential for characterizing natural hazards posed by Yellowstone volcano. We present 40Ar/39Ar eruption ages for the Mallard Lake Member and Central Plateau Member of the Plateau Rhyolite, which comprise products from...
Preliminary Land Cover Data Collected for Protocol and Process Development related to Annual NLCD Preliminary Land Cover Data Collected for Protocol and Process Development related to Annual NLCD
Data collected to facilitate research and development activities pertaining to Annual NLCD algorithm development used as a benchmark for algorithm improvement iterations. The primary goal of these preliminary data was to offer preliminary insight into algorithm performance and guidance for algorithm improvement through error analysis.