Prefatory note for the special issue 1; Front line of economic geology collaborated by Chikyukagaku (Geochemistry) and Shigen-Chishitsu

Abstract

Through the 4.6 Gyr of Earth’s history, ore deposit has been formed via close linkage with the evolution of this planet. Ore deposit is an abnormally enriched material of targeted elements and its enrichment mechanism macroscopically controlled by “Geology” and microscopically controlled by “Geochemistry.” “Front line of economic geology” is the first collaborative special issue by Chikyukagaku (Geochemistry) and Shigen-Chishitsu, aiming to review the metallogenesis, recent progresses and unsolved questions in each type of ore deposit for future researches on economic geology. This collaborative special issue is followed by issue 2 in the next year.