Engineering-geologic map of the Alaska Highway corridor, Tetlin Junction to Canada border, Alaska

During 2009, the Alaska Division of Geological & Geophysical Surveys continued a program, begun in 2006, of reconnaissance mapping of surficial geology in the proposed natural-gas pipeline corridor through the upper Tanana River valley. The study area is a 12-mi-wide (19.3-km-wide) area that straddles the Alaska Highway from the western boundaries of the Tanacross B-3 and A-3 quadrangles near Tetlin Junction eastward to the eastern boundaries of the Nabesna D-1 and C-1 quadrangles along the Canada border. Mapping during 2008-2009 in the Tanacross and Nabesna quadrangles linked with the mapping completed in the Tanacross, Big Delta and Mt. Hayes quadrangles in 2006-2008. Surficial geology was initially mapped in...

Tags: Aeolian, Alaska Highway Corridor, Alaska Pipeline, Alaska, State of, Beaver Creek, All tags... Canada, Chisana River, Engineering, Engineering Geology, Eolian, Gasline, Geologic Hazards, Geologic Map, Geology, Hazards, Landslide, Landslide Deposit, Loess, Midway Lake, Nabesna, Nabesna Quadrangle, Nabesna River, Natural Gas, Northway, Northway Junction, Periglacial Slope Failure, Permafrost, Pipeline, Proposed Natural Gas Pipeline, Retransported Loess, Scottie Creek, Tanacross Quadrangle, Tanana Basin, Tanana River, Taylor Highway, Tetlin, Tetlin Junction, Tetlin National Wildlife Refuge, Thawing Permafrost, Translational Landslide, Transportation Corridor, Unconsolidated Deposits, geoscientificInformation, Fewer tags

Active and potentially active faults in or near the Alaska Highway corridor, Dot Lake to Tetlin Junction, Alaska

In 2005, the Alaska Division of Geological & Geophysical Surveys initiated a multi-year geologic field study focused on a corridor centered along the Alaska Highway between Delta Junction and the Canada border. The purpose of this project is to provide geologic information relevant to a proposed Alaska-Canada natural gas pipeline and other future development in the corridor. The scope of this project includes identification of active faults and characterization of seismic hazards. During the 2008 field season the active fault studies were focused on the central part of the corridor between Dot Lake and Tetlin Junction. Field studies included helicopter and fixed-wing air reconnaissance augmented by interpretation...

Tags: Active Fault, Alaska Highway Corridor, C14, Dot Lake, Earthquake, All tags... Faulting, Faults, Gasline, Geologic Hazards, Proposed Natural Gas Pipeline, Robertson River, Strike-Slip, Structural Geology, Structure, Tanacross, Tanacross Quadrangle, Taylor Highway, Tectonics, Tetlin, Thrust, Tok, Tok River, Transportation Corridor, geoscientificInformation, Fewer tags