Multichannel minisparker and chirp seismic-reflection data of field activity 2015-651-FA; Chatham Strait and Cross Sound, southeastern Alaska from 2015-08-03 to 2015-08-21 ...

• Main Authors: Balster-Gee, Alicia F., Brothers, Daniel S., Conrad, James E, Kluesner, Jared W., Hart, Patrick E, Haeussler, Peter J.
• Format: Dataset
• Language: unknown
• Published: U.S. Geological Survey 2017
• Subjects: marine geology; marine geophysics; seismic hazards; seabed faulting; submarine landlsiding; Glacier Bay; glacier; Alaska
• Online Access: https://dx.doi.org/10.5066/f7rx9b1r; https://www.sciencebase.gov/catalog/item/59de86c8e4b05fe04ccd3ab4

High-resolution multichannel minisparker and chirp seismic-reflection data were collected in August of 2015 to explore marine geologic hazards of inland waterways of southeastern Alaska. Sub-bottom profiles were acquired in the inland waters between Glacier Bay and Juneau, including Cross Sound and Chatham Strait. High-resolution seismic-reflection profiles were acquired to assess evidence for active seabed faulting and submarine landslide hazards. The data were collected aboard the U.S. Geological Survey R/V Alaskan Gyre. Chirp data were acquired using a tow-fish Edgetech 512 chirp subbottom profiler, and multichannel (mcs) minisparker data were acquired using a 500-Joule minisparker source and a 48-channel Geometrics GeoEel digital streamer. Subbottom acoustic penetration spans up to several tens of meters, and is variable by location. This data release contains processed digital digital data in SEG-Y format. ...