U.S. Geological Survey Data Series 582
The seismic data files are binary encoded and cannot be viewed directly. The best way to download these files is to open the segy folder, select the SEG-Y files you wish to download, and drag and drop these files onto your hard drive or use the File > Copy command.
The SEG-Y formatted trace files have a .tra extension. A detailed description of the data format can be found on the SEG-Y Format page.
NOTE: These files may be extremely large. The SEG-Y file sizes are as follow:
97LCA01 range in size from 0.4 to 10.0 MB.
97LCA02 range in size from 38 to 306 MB.
97LCA03 range in size from 8 to 147 MB.
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