This welcome initiative of the Geological Survey of Canada consists of a CD-ROM with a 27-page report to accompany the world map (in hard copy and digital format), showing the location of 527 carbonatites worldwide; it distinguishes magmatic and carbohydrothermal carbonatites. There are also nine world maps showing specific silicate rock associations, seven maps showing ages of carbonatites and three maps showing carbonatites of economic interest with details of economic minerals and commodities. The accompanying text includes a master carbonatite file with brief descriptions of all 527 carbonatites and a file listing all occurrences of extrusive carbonatites containing mantle materials,...

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