Textural analysis

Textural analysis and petrography have been at the heart of my research since PhD times. New techniques to quantify textures in 2D and 3D have revolutionised the way in which we do petrographic analysis of rocks. Grains and crystals are the building blocks of the rocks that make up the earth and are key to our fundamental understanding of key rock properties in sedimentary, igneous and metamorphic rocks.

 

Key areas:

• Porosity/permeability
• Grain size and Crystal Size Distributions
• 2D & 3D textural analysis of rocks
• Spatial patterns
• Grain/crystal packing

 

Some key publications:
Clayton Grove & Dougal A. Jerram. jPOR: An ImageJ macro to quantify total optical porosity from blue-stained thin sections. Computers & Geosciences, Volume 37, Issue 11, November 2011, Pages 1850-1859. doi:10.1016/j.cageo.2011.03.002
Dougal A. Jerram, Graham R. Davis, Alex Mock, Amanda Charrier, and Bruce D. Marsh. Quantifying 3D crystal populations, packing and layering in shallow intrusions: A case study from the Basement Sill, Dry Valleys, Antarctica. Geosphere, Oct 2010; 6: 537 - 548.
Victoria M. Martin, Jon Davidson, Dan Morgan, and Dougal A. Jerram 2010. Using the Sr isotope compositions of feldspars and glass to distinguish magma system components and dynamics. Geology 2010;38;539-542. doi: 10.1130/G30758.1
Dougal A. Jerram , Alex Mock , Graham R. Davis, Matthew Field, Richard J. Brown 2009. 3D crystal size distributions: A case study on quantifying olivine populations in kimberlites. Lithos 112S, 223–235.
Dougal A. Jerram, & Micheal Higgins. 2007. 3D Analysis of Rock Textures: Quantifying Igneous Microstructures. ELEMENTS 3: 239–245.