effects_of_ice.hqx  201 Kb

  This report contains instructions and templates for preparing
three-dimensional paper models of two features - a mountain valley partly
filled by a glacier and the same valley after the glacier has melted. 
Included are brief descriptions of how such glaciers form, how the erode the
landscape, and what kinds of physiographic features they produce.  The
models are intended to help students and others visualize these features and
understand how they are formed.

     Purchasers of the diskette version 2 of this report, which includes all
of the text and graphics, can use HyperCard 2.0 software (not supplied) to
change the model (by adding geologic patterns, symbols, colors, etc.) or to
transfer the model to other graphics software packages*.

    Requirements for the diskette version 2 are: Apple Computer, Inc.,
HyperCard 2.0  software, and an Apple Macintosh  computer.  If you are
using System 7, we recommend using  at least 3 MB of RAM with 1.5 MB of
system memory available for HyperCard.

     To see the entire page (card size: MacPaint), use the mouse to move the
cursor to the menu "Go" and click on "Scroll".

     If you are experiencing trouble with user level buttons. Bring up the
message box. Type "magic" in the message box and press return. Three more
user level buttons should appear.

     The date of version 2 of this Open File Report is Feb. 7, 1992. OF
92-200-A, paper copy, 22p. OF 92-200-B, 3.5-in. 

    
     To order this report, contact:  U. S. Geological Survey Books and
Open-File Reports Sales, P.O. 25425 Denver, CO. 80225, or call (303)
236-7476.