Kimberlites are volatile-rich magmas from mantle depths of ≥150 km and are the primary source of diamonds. Kimberlite volcanism involves the formation of diverging pipes or diatremes, which are the ...

My friend Derek Geldart, who has died aged 81, was emeritus professor of powder technology in the department of chemical engineering at the University of Bradford. In 1967 he started his research into ...

Segregation is a constant problem in industrial processes concerning bulk solids. It is generally either of a mechanical nature or a product of fluidization or pneumatic transport. The mechanical ...