State of Alaska, Division of Geological & Geophysical Surveys

9 items:

Bristol Bay and Alaska Peninsula 2004: Fieldwork and sample analyses compilation report These data are part of a preliminary report based on the 22-day, two-phase, 2004 Bristol Bay-Alaska Peninsula field program. The program's first phase focused on source rock potential of the Mesozoic section, and the second phase focused on reservoir potential and stratigraphic architecture of Tertiary rocks. Data included here are rock sample details, field sample locations, total organic carbon measurements, and porosity and permeability analysis results. Tags: Alaska Peninsula, Bristol Bay Quadrangle, Organic Geochemistry, Permeability, Porosity, All tags...
Preliminary volcano-hazard assessment for Okmok Volcano, Umnak Island, Alaska This dataset consists of the vector digital GIS files that were used to create sheet 1 of the "Preliminary volcano-hazard assessment for Okmok Volcano, Umnak Island, Alaska" (DGGS RI 2004-3). The map area is centered around Okmok Volcano, on eastern Umnak Island. The data includes volcano-hazard zones for ballistics, ash accumulation, pyroclastic flows, floods and lahars, and debris avalanches. Also included in the dataset are roads, trails, seismic station locations, continuous GPS station locations, creeks, and the location of the Fort Glenn airstrip. Tags: Aleutian Arc, Aleutian Islands, Fort Glenn, Fox Islands, Okmok Caldera, All tags...
Active Volcanoes of Kamchatka and the Kurile Islands This data lists the active volcanoes of Kamchatka and the Kurile Islands, their location in latitude/longitude decimal degrees, and the year of the last major eruptive event. The 65 volcanoes listed meet at least one of the following criteria: (1) an historically documented eruption, (2) fumarolic activity, but without a historically documented eruption, or (3) potentially active volcanoes which have erupted within the past 3500 years. Tags: Active Volcanoes, Historic Eruption, Kamchatka, Kurile Islands, Russia, All tags... geoscientificInformation, Fewer tags
Historically active volcanoes of Alaska This data lists the historically active volcanoes of Alaska, their location in latitude/longitude decimal degrees, and the year of the last major eruptive event. The 52 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°C of the boiling point, or (4) significant, measured, volcanic-related, non-eruptive deformation,... Tags: Active Volcanoes, Alaska Peninsula, Alaska, State of, Aleutian Arc, Aleutian Islands, All tags...
Geologic Map of the Cobblestone Creek - May Creek Area, Brooks Range Foothills, Alaska This dataset is comprised of a vector topographic base map illustrating the Chandler Lake B-1 and C-1 1:63,360 quadrangles. Tags: Brooks Range, Chandler Lake Quadrangle, Cobblestone Creek, Geologic Map, Geoscientific Information, All tags...

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