The application of soft X-ray microscopy to the in-situ analysis of sporopollenin/sporinite in a rank variable suite of organic rich sediments Metadata

Metadata describes a digital item, providing (if known) such information as creator, publisher, contents, size, relationship to other resources, and more. Metadata may also contain "preservation" components that help us to maintain the integrity of digital files over time.

Available Formats

Dublin Core: XML Dublin Core: JSON Dublin Core: Text Dublin Core: RDF/XML UNTL: XML Access METS: XML

Title

  • Main Title The application of soft X-ray microscopy to the in-situ analysis of sporopollenin/sporinite in a rank variable suite of organic rich sediments

Creator

  • Author: Cody, G.D.
    Creator Type: Personal
  • Author: Botto, R.E.
    Creator Type: Personal
    Creator Info: Argonne National Lab., IL (United States). Chemistry Div.
  • Author: Ade, H.
    Creator Type: Personal
    Creator Info: North Carolina State Univ., Raleigh, NC (United States). Dept. of Physics
  • Author: Wirick, S.
    Creator Type: Personal
    Creator Info: State Univ. of New York, Stony Brook, NY (United States). Dept. of Physics

Contributor

  • Sponsor: United States. Department of Energy. Office of Energy Research.
    Contributor Type: Organization
    Contributor Info: USDOE Office of Energy Research, Washington, DC (United States)

Publisher

  • Name: Argonne National Laboratory
    Place of Publication: Illinois
    Additional Info: Argonne National Lab., IL (United States)

Date

  • Creation: 1997-07-01

Language

  • English

Description

  • Content Description: Soft X-ray imaging and carbon near edge absorption fine structure spectroscopy (C-NEXAFS) has been used for the in-situ analysis of sporinite in a rank variable suite of organic rich sediments extending from recent up to high volatile A bituminous coal. The acquisition of chemically based images (contrast based on the 1s - 1{pi}* transition of unsaturated carbon), revealed a homogeneous chemical structure in the spore exine. C-NEXAFS microanalysis indicates chemical structural evolution in sporopollenin/sporinite with increases in maturation. The most significant change in the C-NEXAFS spectrum is an increase in unsaturated carbon, presumably aromatic, with rank. The rate of aromatization in sporinite exceeds that of the surrounding vitrinite. Increases in the concentration of unsaturated carbon are compensated by losses of aliphatic and hydroxylated aliphatic carbon components. Carboxyl groups are present in low and variable concentrations. Absorption due to carboxyl persists in the most mature specimen in this series, a high volatile A rank coal. The reactions which drive sporopollenin chemical structural evolution during diagenesis presumably involve dehydration, Diels-Alder cyclo-addition, and dehydrogenation reactions which ultimately lead to a progressively aromatized bio/geopolymer.
  • Physical Description: 35 p.

Subject

  • Keyword: X-Ray Spectroscopy
  • Keyword: Macerals
  • STI Subject Categories: 01 Coal, Lignite, And Peat
  • Keyword: Bituminous Coal
  • Keyword: Absorption Spectroscopy
  • Keyword: Molecular Structure
  • Keyword: Lignite
  • Keyword: Coal Rank

Source

  • Other Information: PBD: [1997]

Collection

  • Name: Office of Scientific & Technical Information Technical Reports
    Code: OSTI

Institution

  • Name: UNT Libraries Government Documents Department
    Code: UNTGD

Resource Type

  • Report

Format

  • Text

Identifier

  • Other: DE97007880
  • Report No.: ANL/CHM/PP--88463
  • Grant Number: W-31109-ENG-38
  • DOI: 10.2172/515505
  • Office of Scientific & Technical Information Report Number: 515505
  • Archival Resource Key: ark:/67531/metadc691734

Note

  • Display Note: OSTI as DE97007880
Back to Top of Screen