Mount Martin and Alagogshak Volcanoes, Katmai, Alaska Posted by agimarc on 2022-07-15 Posted in: America N, Volcanoes. Tagged: Alagogshak, Andesite, Dacite, effusive, Fumarole, glacier, Katmai, Martin. 1 Comment Summit of Mount Martin showing active fumaroles and small acidic lake. Image courtesy SR Wood, US NPS, Katmai Continue ReadingAdvertisement
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