Map showing world distribution of carbon-dioxide springs and major zones of seismicity

摘要: Carbon-dioxide discharges are concentrated along zones of seismicity such as the circum-Pacific belt and alpine southern Europe Asia Minor. They commonly occur young orogenic belts seldom found in either old or cratonal areas continents except where cratons being fragmented. Submarine springs discharging C02 known at only a few localities oceanic crustal spreading centers, but these may indicate highly common widespread phenomenon. Geologic isotopic data that discharged from several tectonic settings is derived variously (1) organic material, (2) metamorphism marine carbonate rocks, (3) mantle. Production depth develop high pore pressure thus facilitate slippage faults. Rapid release result explosive activity.