This book is a collection of papers presented in the 30th International Geological Congress, held in Beijing, on geochemistry. The papers deal with topics on fluid-rock interaction, geochemical kinetics, geochemical mapping, environmental geochemistry, and exploration geochemistry.

This book is a collection of papers presented in the 30th International Geological Congress, held in Beijing, on mineralogy. The papers deal with topics on fine structures and crystallographic orientations in biogenic magnetite and thermodynamic properties of minerals.