![]() ![]() Our data from Merapi volcano, Indonesia imply, however, that during the April-October 2006 eruption significant quantities of CO2 were added from shallow crustal sources. In volcanic arc systems, crustal inputs to magmatic gases mainly occur via subducted sediments in the mantle source region. High-temperature volcanic gas is widely considered to originate from ascending, mantle-derived magma. Anorthite (An) content in individual crystals can vary by as much as 55 mol% (An40^95.Ĭrustal CO2 liberation during the 2006 eruption and earthquake events at Merapi volcano, Indonesia ![]() Recent basaltic andesite lavas from Merapi volcano contain abundant, complexly zoned, plagioclase phenocrysts, analysed here for their petrographic textures, major element composition and Sr isotope composition. Calc-silicate xenoliths within Merapi basaltic-andesite eruptive rocks display textures indicative of intense interaction betweenĬarbonate assimilation at Merapi volcano, Java Indonesia ![]() There is considerable evidence for continuing, late-stage interaction between the magmatic system at Merapi volcano, Indonesia, and local crustal carbonate (limestone). Magma-carbonate interaction processes and associated CO2 release at Merapi volcano, Indonesia: insights from experimental petrologyĭeegan, F.M.
0 Comments
Leave a Reply. |