Scanning Electron Microscopy (SEM) and Energy Dispersive Spectrometry (EDS)


  • SEM service, using the Amray 1820 I/D, is available to provide topographic details of rocks at a microscopic level.
  • Information derived, such as mineralogy, grain size, pore size, clay content and distribution provide the user with information relating to the interaction of rock components and fluids.
  • This technique provides a means of high resolution imaging of pore lining clays.
  • Rapid identification of fine particulates, such as produced fines and scale samples, is particularly useful.
  • Standard output for the SEM is in the form of digital images burned to a CD-ROM.
EDS Spectra

  • The EDS system provides elemental spectra of bulk samples, or small particles.
  • Qualitative evaluation of mineral distribution.
  • Identify non-end-member elements in minerals such as iron-dolomites or iron-calcites

Backscatter Scanning Electron Microscopy


SEMBSE Sample Plate

  • Original image captured as a greyscale image.

  • False color image useful for identifying porous grain boundaries.

  • Binary image derived from greyscale image.
  • Porosity derived from black-level = 5.9%
  • Porosity determination from cuttings.