volcano020.hqx  507 Kb
volcano030.hqx  519 Kb

    This report contains instructions and a pattern for making a
three-dimensional paper model of a volcano. This model is intended to help
students and others visualize a stratovolcano (inside and out) and to learn
some of the terms used by geologists in describing it. By constructing and
examining the model, students will obtain a greater appreciation of the
relationship between the internal structure of the volcano and its exterior
shape and features. This exercise may give the student an insight as to how
a stratovolcano is formed. Included in this report are the paper model,
instructions for assembly, educators' guide, and a simple description of
volcanoes.

Purchasers of the diskette version 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 are: Apple Computer, Inc. HyperCard
2.0  software, and Apple Macintosh Plus, Classic, SE, or II.
The date of this Open File Report is 2/4/1991. OF 91-115-A, paper copy, 3p.
OF 91-115-B, 3.5 in. Macintosh diskette.

Two versions are included:

  Volcano 000/020 - for older Macintosh computers with 68000 or 68020
processor (like Plus, Classic, SE, Portable, II)

  Volcano 030+ - for all other Macintosh computers with 68030 or newer
processor

 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.