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In preparation for bottom sediment coring at Mother Goose Lake, bathymetric data was collected using a Lowrance Sonar "fishfinder" (model LcX-17M) in August 2006 and August 2007. A 5-meter bathymetric contour map of the lake bottom was constructed using the GPS-sonar data in conjunction with field observations. The contour data and GPS location and depth data are provided in ESRI shapefile format for use in Geographic Information System (GIS) software.
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This Raw Data File presents major-oxide glass geochemical results from the ca. 3.6 ka caldera-forming eruption of Aniakchak volcano, Alaska. These data are part of a larger effort to identify and characterize tephra deposits from the largest eruptions in Alaska for use as geochronological marker horizons. Aniakchak is one of at least 29 volcanoes in Alaska that has had multiple large tephra-producing eruptions. Other deposit and sample metadata including geospatial distributions of this tephra deposit are held in the Alaska Volcano Observatory's online database, the Geologic Database of Information on Volcanoes in Alaska (GeoDIVA), and will be linked to these new geochemical data once published. Products included...
Tags: Alaska Peninsula,
Analyses,
Analyses and Sampling,
Analytical Lab Results,
Analytical Results, All tags...
Aniakchak,
Archaeology,
Caldera,
Coastal,
Geochemistry,
Geologic,
Geology,
Glass,
Hazards,
Methods,
Minerals,
Tephra,
Tephrochronology,
Tephrostratigraphy,
Volcanic,
Volcanoes,
Volcanology,
geoscientificInformation, Fewer tags
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