Geologic map of the Makushin volcanic field, Unalaska Island, Alaska
Description
Report of Investigation 97-20, Geologic map of the Makushin volcanic field, Unalaska Island, Alaska, covers most of the north end of Unalaska Island, which is the extent of the Quaternary Makushin volcanic field. This study emphasizes the Holocene-Pleistocene eruptive history of Makushin Volcano and its satellite vents. The complete report, geodatabase, and ESRI fonts and style files are available from the DGGS website: http://doi.org/10.14509/2576.
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Tags
- gems
- coastal and river
- pleistocene
- basalt
- gems ncgmp09
- debris avalanche
- caldera
- rocks
- sample location
- radiocarbon dating
- active volcanoes
- quaternary
- makushin volcano
- lava flow
- major oxides
- aleutians west crsa coastal district
- holocene
- volcanoes
- colluvium
- volcanic
- tertiary
- bedrock
- unalaska
- geology
- bedrock geology
- colluvial deposits
- dggs
- volcanic ash
- surficial
- erosion
- pyroclastic flow
- ar-ar
- volcanology
- geologic map
- volcaniclastics
- geochemistry
- trace geochemical
- unconsolidated deposits
- alluvial
- flood
- rockfall
- pyroclastic fall
- c14
- trace elements
- geochemical surveys
- alluvial fan
- table top mountain
- tuff
- unalaska formation
- pakushin cone
- alluvial deposits
- volcaniclastic deposits
- volcanic landslide
- granodiorite
- volcanic eruption
- volcanic rocks
- alluvium
- tephra
- pyroclastics
- radiocarbon ages