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U.S. Geological Survey Open-File Report 02-002

Geological Framework Data from Long Island Sound, 1981-1990:

A Digital Data Release

Northeastern Long Island Sound and
Fishers Island Sound: AST90-1 Seismic Profiles

 

Skip Table of Contents group; go to seismic profiles discussionOFR02-002 Home: return to OFR02-002 homepageINTRODUCTION: go to introductionSEISMIC DATA: Go to seismic data discussion
Block Island Sound
Eastern Long Island Sound
Western Long Island Sound
West-Central Long Island Sound
Western Long Island Sound
Fishers Island Sound and space Northeastern Long Island Sound
 Cruise Report
Seismic Profiles
Trackline Navigation CORE DATA: Go to core data discussionPHOTO GALLERY: view photos of cruise activities and equipmentDATA CATALOG: Go to data catalog and browse available dataREFERENCES: view suggested referencesRELATED WEBSITES: go to a list of Long Island Sound related websitesACKNOWLEDGMENTS: view acknowledgmentsCONTACTS: view contact informationDISCLAIMER: view disclaimer informationREADME: view readme information

AST90-1 Seismic Profiles

The seismic profiles generated during leg 1 of the 1990 the RV ASTERIAS cruise to Fishers Island Sound can be accessed through either a trackline map or through a tabular data listing. Also part of this dataset and collected during this cruise are 10 lines in 5 files run to examine a subaqueous fan deposit in northeastern Long Island Sound.

Trackline Map

To access the seismic-reflection profiles through the trackline map, click on the line number to bring up a down-sampled grey-scale 'GIF' image of that seismic line.  The seismic line preview will be displayed in a new browser window. Some lines were completed in two or more segments.  When selecting one of those lines, all the line segment images will be displayed in a single html page. The seismic images may also be found by browsing the data/seismics/90_1seis directory located at the top level of this report.

AST90-1: Seismic line 1. Image will open in new browser window. AST90-1: Seismic line 28. Image will open in new browser window. AST90-1: Seismic line 28. Image will open in new browser window. AST90-1: Seismic line 26. Image will open in new browser window. AST90-1: Seismic line 21. Image will open in new browser window. AST90-1: Seismic line 20. Image will open in new browser window. AST90-1: Seismic line 19. Image will open in new browser window. AST90-1: Seismic line 22. Image will open in new browser window. AST90-1: Seismic line 18. Image will open in new browser window. AST90-1: Seismic line 17. Image will open in new browser window. AST90-1: Seismic line 25. Image will open in new browser window. AST90-1: Seismic line 16. Image will open in new browser window. AST90-1: Seismic line 15. Image will open in new browser window. AST90-1: Seismic line 14. Image will open in new browser window. AST90-1: Seismic line 13. Image will open in new browser window. AST90-1: Seismic line 1. Image will open in new browser window. AST90-1: Seismic line 12. Image will open in new browser window. AST90-1: Seismic line 11. Image will open in new browser window. AST90-1: Seismic line 10. Image will open in new browser window. AST90-1: Seismic line 2. Image will open in new browser window. AST90-1: Seismic line 24. Image will open in new browser window. AST90-1: Seismic line 9. Image will open in new browser window. AST90-1: Seismic line 4. Image will open in new browser window. AST90-1: Seismic line 5. Image will open in new browser window. AST90-1: Seismic line 3. Image will open in new browser window. AST90-1: Seismic line 6. Image will open in new browser window. AST90-1: Seismic line 7a. Image will open in new browser window. AST90-1: Seismic line 8. Image will open in new browser window. AST90-1: Seismic line 23. Image will open in new browser window. AST90-1: Seismic line 27 comprised of multi segments. Overview of line segments will open in a new browser window. Map illustration: Trackline map of R/V ASTERIAS 90-1 tracklines in Western Long Island Sound and easternmost Long Island Sound. Seismic line numbers linked to seismic preview images.

Selecting a number from the above image will display the seismic profile for that line in a new browser window.

Click here for a larger map view.
(Map will display in a new browser window.)

AST90-1: Fan survey seismic line 9 and 10. Image will open in new browser window. AST90-1: Fan survey seismic line 1 and 2. Image will open in new browser window. AST90-1: Fan survey seismic line 1 and 2. Image will open in new browser window. AST90-1: Fan survey seismic line 9 and 10. Image will open in new browser window. AST90-1: Fan survey seismic line 3 and 4. Image will open in new browser window. AST90-1: Fan survey seismic line 5 and 6. Image will open in new browser window. AST90-1: Fan survey seismic line 7 and 8. Image will open in new browser window. AST90-1: Fan survey seismic line 5 and 6. Image will open in new browser window. AST90-1: Fan survey seismic line 7 and 8. Image will open in new browser window. AST90-1: Fan survey seismic line 3 and 4. Image will open in new browser window. Map illustration: Trackline map of R/V ASTERIAS 90-1 Fan Survey in Northeastern Long Island Sound and easternmost Long Island Sound. Seismic line numbers linked to seismic preview images.

Selecting a number from the above image will display the seismic profile for that line in a new browser window.

Click here for a larger map view.
(Map will display in a new browser window.)

Data Listing

To view the seismic-reflection profiles through the data listing contained in the table below, click on the name of the PREVIEW IMAGE to display a down-sampled 'GIF' image of that seismic line. The image will be displayed in a new browser window. All PREVIEW IMAGE's have been reduced to 72dpi and a maximum width of 1000 pixels for optimum viewing with a web browser.  Because the preview images have been reduced to a standard length of 1000 pixels, please note that the images will not be of the same scale. To view a full-resolution image of the seismic profile, the user is advised to download the desired 'TIF' image, exit their browser, and open the file in an appropriate graphics application (such as Corel Draw 12 or Adobe Photoshop CS2). Instructions for downloading the full-resolution images follow the data listing.

The file naming structure for the seismic-reflection files is based on a cruise identifier, the line number, and a character indicating the section of that line (in case a line had to be broken into several sections). For example, a90_127b.tif signifies the RV ASTERIAS as the vessel, 1990 as the year, 1 as the leg, 27 as the line number, and 'b' as the section. The sections are listed chronologically in alphabetical order and are not necessarily geographically continuous. The suffix indicates file format. Those files containing seismic profiles collected while surveying the fan deposit in eastern Long Island Sound each contain two lines. In this case the file naming structure is based on a cruise identifier, the letter 'f' designating the fan survey, and the line numbers separated by an underscore.

Skip Seismic Profile Data Listing; go to Fan Survey seismic profile data listing

AST90-1 Seismic Profile Data Listing

Fishers Island Sound:
LINE SECTION PREVIEW IMAGE FULL RESOLUTION IMAGE
1   a90_101.gif a90_101.tif
2   a90_102.gif a90_102.tif
3   a90_103.gif a90_103.tif
4   a90_104.gif a90_104.tif
5   a90_105.gif a90_105.tif
6   a90_106.gif a90_106.tif
7 a a90_107a.gif a90_107a.tif
7 b a90_107b.gif a90_107b.tif
8   a90_108.gif a90_108.tif
9   a90_109.gif a90_109.tif
10   a90_110.gif a90_110.tif
11   a90_111.gif a90_111.tif
12   a90_112.gif a90_112.tif
13   a90_113.gif a90_113.tif
14   a90_114.gif a90_114.tif
15   a90_115.gif a90_115.tif
16   a90_116.gif a90_116.tif
17   a90_117.gif a90_117.tif
18   a90_118.gif a90_118.tif
19   a90_119.gif a90_119.tif
20   a90_120.gif a90_120.tif
21   a90_121.gif a90_121.tif
22   a90_122.gif a90_122.tif
23   a90_123.gif a90_123.tif
24   a90_124.gif a90_124.tif
25   a90_125.gif a90_125.tif
26   a90_126.gif a90_126.tif
27 a a90_127a.gif a90_127a.tif
27 b a90_127b.gif a90_127b.tif
28   a90_128.gif a90_128.tif

Skip Seismic Profile Data Listing; go to downloading instructions

Downloading with Microsoft Internet Explorer

To download a data file while using Microsoft Internet Explorer, the user should select the desired file by placing the system pointer on the file name from the data list and pressing the right mouse button. This will display a pull-down menu from which the user should drag the mouse to highlight "Save target as ..." and release the mouse button. Internet explorer will then prompt the user to specify the name and location of where the selected data file should be saved.

Downloading a selected file with Netscape

To download a data file while using the Netscape browser, the user should select the desired file by placing the system pointer on the file name from the data list and pressing and holding the right mouse button. This will display a pull-down menu from Netscape. The user should drag the mouse to highlight "Save this link as ..." and release the mouse button. Netscape will then prompt the user to specify the name and location of where the selected data file should be saved. Different operating systems and newer versions of Netscape might work somewhat differently. 
Connecticut Department of Environmental Protection

Department of the Interior > U.S. Geological Survey > Coastal and Marine Geology Program > Long Island Sound Studies
Contact: L.J. Poppe (lpoppe@usgs.gov")