Geomaterials Research Services

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Home Petrography Soils and Rocks

Petrographic Examination of Soils and Rocks

Soils, clays and rocks

Geomaterials are able to conduct chemical, mineralogical and textural analysis of soils and rocks using thin sections, X-ray diffraction and electron microprobe analysis techniques. Geomaterials has extensive experience in litigation involving soil and clay analysis.

Soils and Clay Mineralogy

  • X-ray diffraction analysis to determine whole rock and clay mineralogy
  • Determination of bulk chemical composition of the rock by electron microprobe analysis
  • Calculation of semi-quantitative mineralogical proportions based on chemical analysis and X-ray diffraction testing.
  • Determination of clay structure by electron microscopy and petrographic analysis.

Rocks

Classification and identification of rock types

Analysis of rock structure including:

  • Estimation of strength
  • Identification of planes of weakness
  • Assessment of porosity and porosity distribution using fluorescent resin impregnation
  • Lithological variation
  • X-ray diffraction identification of minerals including deleterious clay minerals.
  • Measurement of compressive strength to ISRM methods

Chemical analysis including bulk chemical composition using the electron microprobe.