Deep Earth Carbon Degassing Project
The Deep Earth Carbon Degassing (DECADE) project is an initiative to unite scientists around the world to make tangible advances towards quantifying the amount of carbon outgassed from the Earth's deep interior into the surface environment through naturally occurring processes. DECADE is an initiative within the Deep Carbon Observatory (DCO).
Image: DCO Decade Volcano Monitoring Installations, September 2016
Volcanic gases are gases given off by active volcanoes. These include gases trapped in cavities (vesicles) in volcanic rocks, dissolved or dissociated gases in magma and lava, or gases emanating from lava, from volcanic craters or vents. Volcanic gases can also be emitted through groundwater heated by volcanic action.
Volcanic gases entering the atmosphere with tephra during eruption of Augustine Volcano, Alaska, 2006
Degassing at the summit crater of Villarrica, Chile
Vog in Hawaii, Kilauea 2008 eruptions
Lava fountains at Holuhraun