Rock-a-Pedia

OneGeology is a United Nations for geologists—or, more to the point, a go-to online cooperative for rocks. Unveiled on August 6 at the 33rd International Geological Congress in Oslo, Norway, OneGeology is the world’s first international open-source online geologic data­base. At first glance it may look like little more than an interactive global map on a Web site, but behind its flashy appearance is an open-source platform with a growing list of participating countries, 87 at last count, all sharing detailed data that deliver unique portraits of the world’s rock makeup.