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U.S. Geological Survey Data Series 421

Three Island Lakes Seismic Profiles


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Below are thumbnail images of each line with links to full-size printable and interactive seismic reflection profiles. The printable profiles are GIF images that were filtered and gained using Seismic Unix software. These images are stored in the PRINTABLE folder. Refer to the Software page for details about the processing and examples of the processing scripts. The processed SEG-Y data were exported to CTI SonarWeb software to produce interactive versions of the profiles that allow the user to obtain a geographic location and depth for a cursor position on the profile. This information is displayed in the status bar of the browser. The interactive profiles, which are stored in the INTERACTIVE folder, have been corrected for the offset between the shotpoint and GPS antenna (see fig. 1).

The Three Island Lakes map illustrates the locations of the interactive and printable profiles presented below.

Table 2 lists trackline statistics for 08LCA01.

NOTE: The only supported Web browsers that properly display all features of the interactive profiles are Internet Explorer 6 or greater for Windows and Firefox 1.5 or greater for all platforms. Use of other browsers may result in spurious or no information given in the status window. Firefox may be downloaded at http://www.mozilla.org/products/firefox.

Browser setup for viewing interactive profiles:
For all browsers, the status bar and JavaScript must be enabled. Firefox also requires "Change status bar text" to be checked under Advanced JavaScript Options.

If using Internet Explorer 7, Active Content/ActiveX controls must be disabled. Instructions for doing this can be found by clicking on the "details and setup" link on the interactive profile pages.


SEG-Y Format
How to Download SEG-Y Data
FGDC Metadata


Additional Seismic Profile Pages:

Lake Colby | Lake Helen | Trout Lake | Lake Searcy | Lake Saunders | Big Lake | Lake Prevatt | Three Island Lakes | Johns Lake | Lake Avalon


Line: 08b80   632 traces:
Start of line:   08b80     SHOT=1   day=86 hour=19  minute=50   sec=2
End of line:   08b80   SHOT=632   day=86 hour=19  minute=55  sec=18
INTERACTIVE | PRINTABLE
08b80 thumbnail

Line: 08b81   660 traces:
Start of line:   08b81     SHOT=1   day=86 hour=19  minute=55  sec=18
End of line:   08b81   SHOT=660   day=86 hour=20   minute=0  sec=48
INTERACTIVE | PRINTABLE
08b81 thumbnail

Line: 08b82   492 traces:
Start of line:   08b82     SHOT=1   day=86 hour=20   minute=0  sec=48
End of line:   08b82   SHOT=492   day=86 hour=20   minute=4  sec=54
NTERACTIVE | PRINTABLE
08b82 thumbnail

Line: 08b83  1351 traces:
Start of line:   08b83     SHOT=1   day=86 hour=20   minute=4  sec=54
End of line:   08b83  SHOT=1351   day=86 hour=20  minute=16   sec=9
INTERACTIVE | PRINTABLE
08b83 thumbnail

Line: 08b84  2906 traces:
Start of line:   08b84     SHOT=1   day=86 hour=20  minute=16  sec=10
End of line:   08b84  SHOT=2906   day=86 hour=20  minute=40  sec=22
INTERACTIVE | PRINTABLE
08b84 thumbnail

Line: 08b85  1427 traces:
Start of line:   08b85     SHOT=1   day=86 hour=20  minute=40  sec=23
End of line:   08b85  SHOT=1427   day=86 hour=20  minute=52  sec=16
INTERACTIVE | PRINTABLE
08b85 thumbnail


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Page Last Modified: March 26, 2009 17:37 EST