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

SEM 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

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.