All Data

Conventional methods of assessing organic matter (OM) thermal maturity have limitations and often fail to reflect the geochemical heterogeneity between individual organic phases in mudstone samples. Vitrinite and solid bitumen reflectance, for example, is often measured to estimate OM thermal maturity but is restricted to specific types of OM. Alternative methods deserve exploration...

These data include geochemical analyses of rock and water samples collected from the Hajigak iron deposit, Bamyan and Wardak Provinces, Afghanistan in 2020.

These data include geochemical analyses of rock, mine waste, and water samples collected from the Aynak copper deposit, Logar Province, Afghanistan in 2020.

Zebra mussels are representative of nonindigenous aquatic species (NAS) with devastating economic, recreational, and environmental impacts that are already under watch as a problematic species across the U.S. and in Texas. Targeting dispersal pathways is likely the most efficient means of controlling their spread further west. The movement of recreational watercraft is one of the main...

R Code to Run Composition Sampling for Cook et al. 2023 The aim of this software is to perform composition sampling on simulated disease observation data. Composition sampling is a valuable approach for statistical inference in data limited systems. This software implements composition sampling on simulated chronic wasting disease surveillance data in white-tailed deer in Michigan, U.S...

This dataset contains measurements of water quality parameters (temperature, salinity, specific conductance, dissolved oxygen, and pH) and concentrations of dissolved organic carbon (DOC), dissolved inorganic carbon (DIC), and particulate organic carbon (POC) in canals of Jean Lafitte National Historical Park and Preserve (hereafter, the Park) during wet and dry seasons in 2022 and 2023...

This data release is the update of the U.S. Geological Survey (USGS) - ScienceBase data release Bera (2023), with the processed data for the period October 1, 2021, through September 30, 2022. This data release (DR) describes the watershed data management (WDM) database WBDR22.WDM. The precipitation data are collected from a tipping-bucket rain-gage network and the hydrologic data (stage...

From 2018 to 2024 surface waters (fresh and brackish), groundwater, and stormwater (runoff, re-use) samples were collected from sites with varying landuse (agricultural, forested, and urban) and streamflow conditions and analyzed at the Organic Geochemistry Research Laboratory in Lawrence, Kansas for the tire antioxidant 6PPD (6-p-phenylenediamine; N-(1,3-Dimethylbutyl)-N’-phenyl-p

This data release (DR) is the update of the U.S. Geological Survey - ScienceBase data release Bera (2023), with the processed data for the period October 1, 2021, through September 30, 2022. This data release describes the watershed data management (WDM) database SC22.WDM. The precipitation data are collected from a tipping-bucket rain-gage network and the hydrologic data (stage and...

Bird and habitat surveys were conducted in winter-flooded rice fields in the Sacramento Valley, California, USA during the fall and winters of 2021-2022 (Oct 2021 through February 2022) and 2022-2023 (December 2022 through February 2023). Rice field sampling consisted of (1) a bird survey that was followed by (2) an overall habitat assessment and (3) a more detailed habitat transect...

Two digital video cameras were temporarily installed at the U.S. Fish and Wildlife Service (USFWS) Pea Island National Wildlife Refuge (PINWR) in North Carolina (NC), as part of the DUring Nearshore Event eXperiment (DUNEX). DUNEX was a collaborative community-led experiment that took place in the fall of 2021 along the Outer Banks of NC, with the goal of improving the understanding...

This study tests the influence of environmental conditions on conversion of the maceral bituminite to a solid petroleum residuum (solid bitumen) during pyrolysis. The presence of water in sedimentary basins controls multiple processes during petroleum generation, migration, and storage. Four organic-rich (26–36 wt.% total organic carbon) oil shale samples were collected from thin-bedded...