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Magnetic susceptibility measurements on hydrothermally altered rocks in the Silverton caldera, southwest Colorado Magnetic susceptibility measurements on hydrothermally altered rocks in the Silverton caldera, southwest Colorado
The U.S. Geological Survey (USGS) collected magnetic susceptibility measurements on rock outcrops to help understand causative sources of magnetic survey anomalies in the Silverton caldera region, southwest Colorado. A total of 1,400 measurements of magnetic susceptibility from 87 locations have been conducted on Paleogene volcanic and plutonic rocks that have been hydrothermally altered...
Interferometric synthetic aperture radar data from 2021 for landslides at Barry Arm Fjord, Alaska Interferometric synthetic aperture radar data from 2021 for landslides at Barry Arm Fjord, Alaska
Subaerial landslides at the head of the Barry Arm fjord remain a tsunami threat for the Prince William Sound region in southern Alaska. Tasked RADARSAT-2 synthetic aperture radar (SAR) data from two ultrafine beam modes (2 m), U19 and U15, were used to measure landslide movement of slopes near the toe of the Barry Glacier between 21 May 2021 and 5 November 2021. Data were acquired every...
Naled and dichlorvos in water and aquatic organisms from a canal and rice fields near Sacramento, California Naled and dichlorvos in water and aquatic organisms from a canal and rice fields near Sacramento, California
Ultra-low volumes of naled are applied by aircraft over rice fields and canals to reduce adult mosquito populations near Sacramento, California. Each summer, the pesticide is applied approximately 7-10 times between July and October. Naled and its major degradate (dichlorvos) were quantified in water, biofilm, and invertebrates following aerial applications. In 2020, samples were...
Pollen data from seven lakes in the Klamath Mountains, California: a case study for paleoecological reconstruction Pollen data from seven lakes in the Klamath Mountains, California: a case study for paleoecological reconstruction
The dataset include raw pollen counts, age model data, and pollen accumulation rates with uncertainty estimates for seven lake sites in the Klamath Mountains, California, USA. The raw pollen counts reflect the relative abundance of major taxa from the vegetation surrounding each lake site (n=7) at 5 different time periods. The age model data provides a Bayesian-based estimate of the...
Chemical alteration index values and rare earth element data and expected ranges for regolith overlying the Stewartsville pluton, Virginia Chemical alteration index values and rare earth element data and expected ranges for regolith overlying the Stewartsville pluton, Virginia
This dataset contains whole major element geochemical data used to calculate values of the chemical alteration index (CIA), data for Nd, Sm, Y, and total REE and expected ranges for total REEY for samples of regolith overlying the Stewartsville pluton, Virginia. The southeastern United States was first identified as prospective for regolith-hosted REE deposits based on the recognition...
Airborne Magnetic Survey, Michigan Upper Peninsula Area, 2008 Airborne Magnetic Survey, Michigan Upper Peninsula Area, 2008
This publication provides digital flight line data for a high-resolution magnetic survey over an area of the west-central Upper Peninsula of Michigan. The survey was flown in 2008 by Aeroquest under contract to Kennecott Eagle Minerals Company using a fixed-wing aircraft with a magnetometer mounted in a tail stinger. The USGS has obtained this 66,074 line km subset of the survey dataset...