Current research areas include the following:

• Numerical modeling of melt infiltration and reaction in layered intrusions. Quantitative textural studies of compaction and its geochemical effect in layered intrusions. Current studies have concentrated on the Bushveld complex of South Africa.
  
  
• Evidence for the volatiles in layered intrusions and their possible importance in the formation of platinum-group element deposits. d reaction in layered intrusions.
  
  
• Quantitative textural studies of compaction and its geochemical effect in layered intrusions.  Current studies have concentrated on the Bushveld complex of South Africa.
  
  
• Evidence for the volatiles in layered intrusions and their possible importance in the formation of platinum-group element deposits.

Example modeling of compaction in the Holyoke Flood basalt. Curves are model results, symbols are data from the flow.

Example CSD of gabbro from the Bushveld Complex, showing evidence of a mixed plagioclase crystal population.

Example of halogen variations recorded in apatite from various layered intrusions.