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This data lists the historically active volcanoes of Alaska and the year of the last major eruptive event. The volcanoes listed meet at least one of the following criteria since 1700 CE: (1) documented, unquestioned eruption, or (2) a strongly suspected eruption, often an eruption documented in the historical account with very little information (current geologic knowledge must not contradict the eruption account), or (3) persistent (usually on the order of decades, but certainly longer than several months) fumaroles, with temperatures (where measured) within ~10 degrees C of the boiling point, or (4) significant, measured, volcanic-related, non-eruptive deformation, (5) documented earthquake swarm with strongly...
Tags: Active Volcanoes,
Alaska Peninsula,
Alaska Statewide Maps,
Alaska, State of,
Aleutian Arc, All tags...
Aleutian Islands,
Coastal and River,
Coastal and River Hazards,
Geologic Hazards,
Geology,
Hazards,
Historic Eruption,
Volcanic,
Volcanic Eruption,
Volcano Hazards,
Volcanoes,
Volcanology,
geoscientificInformation, Fewer tags
Kasatochi is a small, isolated island volcano in the center of the Aleutian Island chain. It consists of a roughly circular cone approximately 3 km in diameter with a lake-filled central crater that is 1.2 km in diameter and extends from the highest point on the island to sea level. The oldest unit recognized is a thick series of mid-Pleistocene glaciovolcanic deposits consisting of autobrecciated lava, lahars, and volumetrically minor lava masses that we believe to have been emplaced underneath a regional ice cap. This unit is unconformably overlain by several massive Holocene lavas, above which lies a thick sequence of latest-Holocene pyroclastic deposits likely deposited during the crater-forming eruption. The...
Tags: Active Volcanoes,
Age Dates,
Aleutian Arc,
Aleutian Islands,
Alluvial Deposits, All tags...
Analyses,
Analyses and Sampling,
Basalt,
Bedrock,
Bedrock Geology,
Caldera,
Chemistry,
Colluvium,
Erosion,
Fan,
Geochemical Data,
Geochemistry,
Geochronology,
Geologic,
Geologic Hazards,
Geologic Map,
Geological Process,
Geology,
Geomorphology,
Hazards,
Historic Eruption,
Igneous,
Kasatochi,
Lava Flow,
Mineralogy,
Petrographic,
Petrography,
Petrology,
Pumice,
Pyroclastics,
Rockfall,
Rocks,
Sample Location,
Slope Instability,
Slump,
Soils,
Surface,
Surficial,
Talus,
Tephra,
Topography,
Ultramafic,
Uplift,
Volcanic,
Volcanic Ash,
Volcanic Eruption,
Volcanic Rocks,
Volcaniclastics,
Volcanoes,
Volcanology,
geoscientificInformation, Fewer tags
This publication contains previously unpublished geochemical analyses or re-analyses of lavas, magmatic inclusions, and a few gabbroic cumulate inclusions from Alaska volcanoes (Akutan, Augustine, Buzzard Creek, Dana, Douglas, Fourpeaked, Frosty, Great Sitkin, Iliamna, Kaguyak, Kiska, Okmok, Prindle Cone, Recheshnoi, Redoubt, Spurr, Ukinrek Maars, Vsevidof, Westdahl, Wrangell) collected by the authors and others over the past 35 years. It provides substantial data sets for three volcanoes (Vsevidof, Westdahl, and Douglas) for which little or no published data exist. All analyses were made by the GeoAnalytical laboratory at Washington State University in Pullman, WA. The ICP/MS data have been reduced using the 2006...
Tags: Adagdak,
Adak,
Akutan,
Analyses,
Analyses and Sampling, All tags...
Analytical Lab Results,
Analytical Results,
Augustine,
Augustine Volcano,
Basalt,
Bedrock,
Bogoslof,
Chemistry,
Colorado Creek,
Crater Peak,
Crystals,
Douglas,
Faris Peak,
Fourpeaked,
Frosty,
Frosty Peak,
Geochemical Data,
Geochemistry,
Geochronology,
Geologic,
Geology,
Glacier Creek,
Hayes,
Hazards,
Ice,
Iliamna,
Iliamna Volcano,
Jag Peak,
Juneau,
Kaguyak,
Kansas Creek,
Kasatochi,
Katmai,
Kiska,
Maars,
Mount Douglas,
Mount Peulik,
Mount Recheshnoi,
Mount Spurr,
Mount Wrangell,
Mount Zanetti,
Nikolski,
Okmok,
Okmok Caldera,
Pavlof,
Prindle Volcano,
Redoubt,
Redoubt Volcano,
Rhyolite,
Rocks,
Sample Location,
Spurr,
Tanana,
Tephra,
The Sisters,
Ukinrek,
Ukinrek Maars,
Uliaga,
Umnak Island,
Unimak,
Volcanic,
Volcanic Arc,
Volcanic Rocks,
Volcanoes,
Volcanology,
Vsevidof,
Westdahl,
Whittier,
Wrangell,
Yakutat,
geoscientificInformation, Fewer tags
This dataset comprises the locations of volcanoes and volcanic centers in Alaska.
Tags: Akutan,
Alaska, State of,
Aleutian Islands,
Amchixtam Chaxsxii,
Atka, All tags...
Basalt of Gertrude Creek,
Black Peak,
Buzzard Creek,
Cone 3110,
Cone 3601,
Devils Desk,
Double Glacier,
Douglas,
Duncan Canal,
Dutton,
Emmons Lake,
Espenberg,
Folsoms Bluff,
Geologic Hazards,
Geology,
Gordon,
Iliamna,
Imuruk Lake,
Ingakslugwat Hills,
Iron Trig Cone,
Kaguyak,
Knob 1000,
Kochilagok Hill,
Kookooligit Mountains,
Kukak,
Kupreanof,
Makushin,
Martin,
Nelson Island,
Novarupta,
Nunivak Island,
Pavlof,
Pavlof Sister,
Porcupine,
Prindle Volcano,
Rainbow River Cone,
Skookum Creek,
Southcentral Alaska,
Southeast Alaska,
Subduction,
Tanada Peak,
Teller Basalt Field,
Togiak Volcanics,
Unnamed 1 (near Kupreanof),
Unnamed 2 (near Ukinrek Maars),
Volcanic,
Volcanic Eruptions,
Volcanic Rocks,
Volcano 1 near Kupreanof,
Volcano 2 near Kupreanof,
Volcano 4 near Kupreanof,
Volcanoes,
Volcanology,
Wrangell,
geoscientificInformation, Fewer tags
Kasatochi is a small, isolated island volcano in the center of the Aleutian Island chain. It consists of a roughly circular cone approximately 3 km in diameter with a lake-filled central crater that is 1.2 km in diameter and extends from the highest point on the island to sea level. The oldest unit recognized is a thick series of mid-Pleistocene glaciovolcanic deposits consisting of autobrecciated lava, lahars, and volumetrically minor lava masses that we believe to have been emplaced underneath a regional ice cap. This unit is unconformably overlain by several massive Holocene lavas, above which lies a thick sequence of latest-Holocene pyroclastic deposits likely deposited during the crater-forming eruption. The...
Tags: Active Volcanoes,
Age Dates,
Aleutian Arc,
Aleutian Islands,
Alluvial Deposits, All tags...
Analyses,
Analyses and Sampling,
Basalt,
Bedrock,
Bedrock Geology,
Caldera,
Chemistry,
Colluvium,
Erosion,
Fan,
Geochemical Data,
Geochemistry,
Geochronology,
Geologic,
Geologic Hazards,
Geologic Map,
Geological Process,
Geology,
Geomorphology,
Hazards,
Historic Eruption,
Igneous,
Kasatochi,
Lava Flow,
Mineralogy,
Petrographic,
Petrography,
Petrology,
Pumice,
Pyroclastics,
Rockfall,
Rocks,
Sample Location,
Slope Instability,
Slump,
Soils,
Surface,
Surficial,
Talus,
Tephra,
Topography,
Ultramafic,
Uplift,
Volcanic,
Volcanic Ash,
Volcanic Eruption,
Volcanic Rocks,
Volcaniclastics,
Volcanoes,
Volcanology,
geoscientificInformation, Fewer tags
Alaska Volcano Observatory's geochemical database contains published whole-rock data for Quaternary volcanic rocks in Alaska, linked to geologist, publication, source volcano (where possible), and other sample and analysis metadata. This database also contains water cation and anion data for recent AVO studies. This website allows users to query the database and return datasets as fully-documented .html or .csv tables. It is our intention to update this dataset as new volcano-related geochemical data is published.
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