U.S. Geological Survey Open-File Report 2009–1003
Digital Seismic-Reflection Data from Eastern Rhode Island Sound and Vicinity, 1975–1980
ASTR75–June Seismic Profiles
The seismic-reflection profiles obtained during the R/V Asterias cruise in eastern Rhode Island Sound during June 1975 can be accessed in the trackline map or the data listing below.
Low-resolution GIF images can be accessed through the interactive trackline map by clicking on a line number. The seismic-line preview image will be displayed in a new browser window.
Figure 4. Map of tracklines from cruise ASTR75–June in eastern Rhode Island Sound.
Seismic-reflection profiles can be viewed and downloaded through the table below. Clicking on the name of a preview image below will open the low-resolution GIF image of the seismic line in a new browser window. The preview images have been reduced to 96 dpi with a maximum width of 1,000 pixels. Clicking on the black and white TIFF file name will allow the user to download the TIFF image of the seismic line. The TIFF image can then be opened in appropriate graphics software (such as Adobe Illustrator CS2, Adobe Photoshop CS2, or Corel Draw). A compressed (Zip), downloadable archive file containing the SEG-Y data for each line is also provided. Compressed downloadable files were created by using the Windows program WINZIP v9.0. Users who do not have software capable of uncompressing the archived Zip files can obtain a free version of the software from Pkware, Inc. Users of SEG-Y data are encouraged to view the TIFF images or access the cruise logbook through the link at the end of the Cruise Report/Logbook page to see field notes about data acquisition and weather conditions. Grayscale PNG images listed below can be accessed from Disk B of the DVD-ROMs, or they can be accessed on the Web by clicking the heading "Grayscale PNG" in the table below. By clicking the "Black and White TIFF" or "SEG-Y Data" headings in the Data Listing below, the user can download multiple files from a folder containing all the cruise data of each file type.
Seismic Profile Data Listing for cruise ASTR75–June, eastern Rhode Island Sound