General Information:

• This exercise is one that is required . 
• Originally intended as part of exercise set 1, it is now the first required exercise of set 2 to keep the exercises on pace with topics covered in the lectures.
  
• It involves examination of maps of the ocean floor that enable recognition of various topographic features associated with tectonic processes that shape ocean basins.
• The questions can be answered individually, or in groups of two to four. 
• the questions for individuals are given on the following pages ( exercise ).
• the questions, but not the links, are also given in oncourse .
• Answers to all questions should be submitted via  oncourse .
• Check the exercise set I noticeboard ( news ) for announcements.

• The exercise requires:
• Identification of various topographic features based on their characteristic appearance in colored contour maps of the seafloor. 
• Comparison of different topographic features and assessment of the nature of their formation by tectonic processes. 
• The first part of the exercise involves exploration of bathymetric features in maps of ocean floor topography for specific regions of the ocean.  These are displayed in plan (overhead) views with differences in depth indicated by color.
• A summary of major bathymetric features is given here .
• Summaries of the areas represented by the maps are available here .
• The first, recommended set of colored topographic images provides:
• 16 maps in 90° longitudinal sections
• An alternate set of maps provides greater detail, but less color contrast:
• 32 maps in 45° longitudinal sections, but without latitude and longitude 
• The second part of the exercise is based on examination and comparison of user-specified 3-D images of ocean floor topography.
• If any of the sites become inaccessible, I will provide information about alternatives or additions in the announcements here ( news ).
• If you encounter any difficulties with access to any of the sites please notify me by email ( simon@indiana.edu ) and I will attempt to resolve problems, or suggest other options as soon as possible.

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Department of Geological Sciences, 
1001 E. Tenth Street, Bloomington, IN 47405-1403
Phone: (812) 855-5582  Last updated: 6 October 2002
Comments: simon@indiana.edu
Copyright 2002, The Trustees of Indiana University