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    • Microscopic Images of Leonardite and Humate Biochar: Using Reflected Light Microscopy in Biochar Characterization

    Metadata Updated: July 20, 2024

    Biochar is a carbon-rich substance that is derived through the thermochemical conversion of biomass. Biochar is recognized for its significance in environmental applications and sustainable agriculture. In an effort to comprehend how the source material and pyrolysis parameters influence its properties, reflected light microscopy is being used to produce microscopic images for analysis of selected physical and chemical properties. An atlas of microscopic images of biochar has been compiled by the Indiana Geological and Water Survey at Indiana University, Bloomington, IN, USA, containing more than 300 images contributed by researchers across the globe. USGS contributed 13 photomicrograph images from two biochar source materials: Leonardite and Humate. This dataset represents these 13 images.

    Access & Use Information

    Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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    Dates

    Metadata Created Date July 20, 2024
    Metadata Updated Date July 20, 2024

    Metadata Source

    Harvested from DOI EDI

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date July 20, 2024
    Metadata Updated Date July 20, 2024
    Publisher U.S. Geological Survey
    Maintainer
    @Id http://datainventory.doi.gov/id/dataset/963b2132d143563755c91679e232f35f
    Identifier USGS:65eb0ba1d34e14033297d315
    Data Last Modified 20240426
    Category geospatial
    Public Access Level public
    Bureau Code 010:12
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    Metadata Catalog ID https://datainventory.doi.gov/data.json
    Schema Version https://project-open-data.cio.gov/v1.1/schema
    Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
    Harvest Object Id 089c0602-30f6-4687-bf06-a13dd8b3500c
    Harvest Source Id 52bfcc16-6e15-478f-809a-b1bc76f1aeda
    Harvest Source Title DOI EDI
    Metadata Type geospatial
    Old Spatial -110.0,30.0,-96.0,50.0
    Publisher Hierarchy White House > U.S. Department of the Interior > U.S. Geological Survey
    Source Datajson Identifier True
    Source Hash dc1eb35dc8da53012a0cc00b3e757e1220bd6c885263ff48f3bc115159844b9a
    Source Schema Version 1.1
    Spatial {"type": "Polygon", "coordinates": -110.0, 30.0, -110.0, 50.0, -96.0, 50.0, -96.0, 30.0, -110.0, 30.0}

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