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Mount Chiginagak is a hydrothermally active volcano on the Alaska Peninsula, approximately 170 km south-southwest of King Salmon, Alaska. This small stratovolcano, approximately 8 km in diameter, has erupted through Tertiary to Permian sedimentary and igneous rocks. The eruptive products of Chiginagak volcano record a history of chiefly andesite lava flows and associated block-and-ash flows. The oldest lavas exposed are Pleistocene in age and are found everywhere around the edifice except in the northeast sector, where Holocene lava flows dominate the landscape. Holocene activity has covered the northeast flank with rubbly-topped andesite lava flows that extend as far as 4.6 km from their source vent at the summit...
Tags: Alaska Peninsula,
Aleutian Range,
Analyses,
Chiginagak,
Gas, All tags...
Geochemistry,
Geochronology,
Geologic,
Geology,
Hazards,
Igneous,
Lahar,
Mount Chiginagak,
Neoglacial,
Pumice,
Rocks,
Sediment,
Sulfur,
Surface,
Surficial,
Tephra,
Ugashik Quadrangle,
Volcanic,
Volcanic Ash,
Volcanic Eruption,
Volcanic Gas,
Volcanic Rocks,
Volcaniclastic Deposits,
Volcaniclastics,
Volcanoes,
Volcanology,
Water,
geoscientificInformation, Fewer tags
Mount Chiginagak is a hydrothermally active volcano on the Alaska Peninsula, approximately 170 km south-southwest of King Salmon, Alaska. This small stratovolcano, approximately 8 km in diameter, has erupted through Tertiary to Permian sedimentary and igneous rocks. The eruptive products of Chiginagak volcano record a history of chiefly andesite lava flows and associated block-and-ash flows. The oldest lavas exposed are Pleistocene in age and are found everywhere around the edifice except in the northeast sector, where Holocene lava flows dominate the landscape. Holocene activity has covered the northeast flank with rubbly-topped andesite lava flows that extend as far as 4.6 km from their source vent at the summit...
Tags: Alaska Peninsula,
Aleutian Range,
Analyses,
Chiginagak,
Gas, All tags...
GeMS NCGMP09,
Geochemistry,
Geochronology,
Geologic,
Geology,
Hazards,
Igneous,
Lahar,
Mount Chiginagak,
Neoglacial,
Pumice,
Rocks,
Sediment,
Sulfur,
Surface,
Surficial,
Tephra,
Ugashik Quadrangle,
Volcanic,
Volcanic Ash,
Volcanic Eruption,
Volcanic Gas,
Volcanic Rocks,
Volcaniclastic Deposits,
Volcaniclastics,
Volcanoes,
Volcanology,
Water,
geoscientificInformation, Fewer tags
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