485 results — topic: Geochemistry & Isotopes

Dataset

Cosmogenic Nuclide Burial Isochron Data for the Central City Gravel, Malta Gravel, and Lava Creek B Ash Locations: Classic Locations of Early to Middle Pleistocene Deposits, South Platte and Arkansas Rivers, Central Colorado, USA

This data release includes Al-26/Be-10 cosmogenic nuclide concentrations and burial isochron ages for three locations in central Colorado, USA, with preferred burial ages ranging from ~2 Ma to 600 ka, that provide constraints on geologic mapping and chronostratigraphic correlations of Pleistocene Co

Chester A. Ruleman, Rachel N Sortor, Adam M Hudson2025DOI: 10.5066/p14tggx4
Dataset

Cosmogenic Nuclide Burial Isochron Data for the Central City Gravel, Malta Gravel, and Lava Creek B Ash Locations: Classic Locations of Early to Middle Pleistocene Deposits, South Platte and Arkansas Rivers, Central Colorado, USA

This data release includes Al-26/Be-10 cosmogenic nuclide concentrations and burial isochron ages for three locations in central Colorado, USA, with preferred burial ages ranging from ~2 Ma to 600 ka, that provide constraints on geologic mapping and chronostratigraphic correlations of Pleistocene Co

Cal Ruleman2025
Dataset

Cosmogenic Nuclide Burial Isochron Data for the Central City Gravel, Malta Gravel, and Lava Creek B Ash Locations: Classic Locations of Early to Middle Pleistocene Deposits, South Platte and Arkansas Rivers, Central Colorado, USA

This data release includes Al-26/Be-10 cosmogenic nuclide concentrations and burial isochron ages for three locations in central Colorado, USA, with preferred burial ages ranging from ~2 Ma to 600 ka, that provide constraints on geologic mapping and chronostratigraphic correlations of Pleistocene Co

Chester A. Ruleman, Rachel N Sortor, Adam M Hudson2025DOI: 10.5066/p14tggx4
Dataset

Global Bee Interaction Data

Last modified: January 09, 2025 IntroductionThis dataset comprises all bee interactions indexed by Global Biotic Interactions (GloBI; Poelen et al. 2014). It is published quarterly by the Big Bee Project (Seltmann et al. 2021) to summarize all available knowledge about bee interactions from natural

Seltmann, Katja C, Poelen, Jorrit H., Global Biotic Interaction Community2025DOI: 10.5281/zenodo.14624975Cited 1 times
Dataset

Airborne Magnetic and Radiometric Survey, Colorado Mineral Belt, Mid Block, 2023

This data release provides digital flight-line and gridded data for a high-resolution airborne magnetic and radiometric survey over the central portion of the Colorado Mineral Belt, central Colorado. The Colorado Mineral Belt is a broad, northeast-southwest trending alignment of historic mining dist

United States Geological Survey2025DOI: 10.5066/p13gzynt
Dataset

60-meter Segment Stream Network of the Upper East River Watershed, Brown County, Wisconsin

The East River is an agricultural tributary to the Lower Fox River and the Environmental Protection Agency (EPA) Green Bay Area of Concern (AOC) in northeast Wisconsin. This tributary has known excessive phosphorus (P) and suspended sediment loads that contribute to habitat related impairments and d

Heidi M Broerman, James D Blount, Faith A Fitzpatrick2025DOI: 10.5066/p144a5jsCited 1 times
Dataset

Rapid Geomorphic Assessment Data for the Upper East River Watershed, Brown and Calumet Counties, Wisconsin

The East River is an agricultural tributary to the Lower Fox River and the Environmental Protection Agency (EPA) Green Bay Area of Concern (AOC) in northeast Wisconsin. This tributary has known excessive phosphorus (P) and suspended sediment loads that contribute to habitat related impairments and d

James D Blount, Heidi M Broerman, Faith A Fitzpatrick2025DOI: 10.5066/p14ghnmvCited 2 times
Dataset

Colorado Cold-Air Pooling Maps and SNOTEL Station Classifications

This dataset contains maps of cold-air pooling (CAP) across Colorado at 100m resolution (Colorado_100m.nc) and the region surrounding the East River watershed, CO at 30m resolution (EastRiver_30m.nc). Classifications were determined using a Python implementation of the algorithm originally developed

Cramblitt, John, Lundquist, Jessica2025DOI: 10.5281/zenodo.17168089
Dataset

Colorado Cold-Air Pooling Maps and SNOTEL Station Classifications

This dataset contains maps of cold-air pooling (CAP) across Colorado at 100m resolution (Colorado_100m.nc) and the region surrounding the East River watershed, CO at 30m resolution (EastRiver_30m.nc). Classifications were determined using a Python implementation of the algorithm originally developed

Cramblitt, John, Lundquist, Jessica2025DOI: 10.5281/zenodo.17459995
Dataset

Replication data for: Fig 11.1, Top right, GPDs, Colony sizes and compositions by year, 18 Dec 2025

FILE DESCRIPTION Keywords: Gunnison's prairie dog, Colony sizes and colony compositions by year File name = Fig 11.1, Top right, GPDs, Colony sizes and compositions by year, 18 Dec 2025 SM males = sexually mature GPD males, some of them yearlings SM females = yearling and adult fems, all of which co

Hoogland, John2025DOI: 10.48579/pro/jstlsa
Dataset

Geochemistry and Strontium Isotopes for Coal Creek Watershed, Colorado, 2021-2022

The geochemistry and strontium isotope data for Coal Creek Watershed, Colorado, consists of cation, anion, and 87Sr/87Sr isotope values from samples collected at 8 stream location along Coal Creek, samples from two groundwater springs within the watershed, and a shallow subsurface piezometer. All st

Johnson, Keira, Williams, Kenneth, Christensen, John2025DOI: 10.15485/2473235Cited 1 times
Dataset

Data from: Fitness costs and benefits of a non-native floral resource for subalpine solitary bees

Organisms inhabiting seasonal environments must fit their life cycle into a limited time window while also synchronizing periods of resource consumption with timing of resource availability. Introduced non-native species, which often differ in phenology from natives, can alter and expand the seasona

Forrest, Jessica R.K., Cahill, Charlotte M., CaraDonna, Paul J.2025DOI: 10.5061/dryad.cc2fqz6g9Cited 1 times
Dataset

Data for: Increasing aridity may threaten the maintenance of a plant defense polymorphism

It is unclear how environmental change influences standing genetic variation in wild populations. Here, we characterized environmental conditions that protect vs. erode polymorphic chemical defenses in Boechera stricta (Brassicaceae), a short-lived perennial wildflower. By manipulating drought and h

Carley, Lauren, Mitchell-Olds, Tom, Morris, William2025DOI: 10.5061/dryad.18931zd4sCited 1 times
Dataset

Surface Ocean CO2 Atlas Database Version 2025 (SOCATv2025) (NCEI Accession 0304549)

The ocean absorbs one quarter of the global CO2 emissions from human activity. The community-led Surface Ocean CO2 Atlas (www.socat.info) is key for the quantification of ocean CO2 uptake and its variation, now and in the future. SOCAT version 2025 has quality-controlled in situ surface ocean fCO2 (

NCEI2025DOI: 10.25921/648f-fv35Cited 4 times
Dataset

SPLASH Field Study; Spectral Surface Albedo Observations from NOAA GML/GRAD and CIRES at Kettle Ponds (CKP) (NCEI Accession 0305473)

Overview The NOAA Global Monitoring Laboratory (GML), Radiation, Aerosols, and Cloud Division (G-RAD), in collaboration with the Cooperative Institute for Research in Environmental Sciences (CIRES) at the University of Colorado Boulder, conducted spectral surface albedo measurements at — Kettle Pond

NCEI2025DOI: 10.25921/0ftc-he39
Dataset

SPLASH Field Study; Spectral Surface Albedo Observations from NOAA GML/GRAD and CIRES at Brush Creek (CBC) (NCEI Accession 0305474)

Overview The NOAA Global Monitoring Laboratory (GML), Radiation, Aerosols, and Cloud Division (G-RAD), in collaboration with the Cooperative Institute for Research in Environmental Sciences (CIRES) at the University of Colorado Boulder, conducted spectral surface albedo measurements at — Brush Creek

NCEI2025DOI: 10.25921/2yzw-qb93
Dataset

SPLASH Field Study; CLAMPS2 Doppler Lidar VAD Data (NCEI Accession 0304717)

These files contain 24-hour periods of data collected from the CLAMPS2 Halo Streamline XR+ Doppler lidar. The Doppler lidar conducts regular conical scans at a set elevation angle. These data are then passed through a typical VAD algorithm to retrieve horizontal wind speed and direction profiles. Th

NCEI2025DOI: 10.25921/rpx2-t532
Article

X-ray chemical imaging for assessing redox microsites within soils and sediments

Redox reactions underlie several biogeochemical processes and are typically spatiotemporally heterogeneous in soils and sediments. However, redox heterogeneity has yet to be incorporated into mainstream conceptualizations and modeling of soil biogeochemistry. Anoxic microsites, a defining feature of

Noel V., Boye K., Naughton H. R.2024Frontiers in Environmental ChemistryDOI: 10.3389/fenvc.2024.1329887Cited 5 times
Document

Well water dropping to critical levels

lly DElll3IE PITTMAN the La J ara and Capulin a rea, is too s ma ll to lower a pump into. reach the receding water level. said. ALAMOSA - Drought condi- but we're seeing problems in all The only alternative is to drill a "While not necessarily 'drying "I think the problem is state- tions are becomin

Document

Utility-Scale Energy Storage Will Enable a Renewable Grid

Utility-Scale Energy Storage Will Enable a Renewable Grid A roadblock to sustainable energy solutions is coming unstuck By Andrea Thompson on July 1, 2019 Credit: Vanessa Branchi The Away D V E the R T I Sworld E M E N Tgets its electricity is undergoing a rapid transition, driven by both the increa