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| Open-File Report 95–0831 |
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| About USGS / Science Topics / Maps, Products & Publications / Education / FAQ |
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 Summary
This book was released in paper form in June, 1996. After its release, it was converted to digital form as Adobe Acrobat (.pdf) files using Acrobat version 2.1. The Acrobat presentation you are accessing is a facsimile of the published book. A few minor editorial changes were made to the book to correct errors and some of the figures have been enhanced. The figures are the same as those in the book, but some have been reprocessed or redrafted and others converted from grayscale to color to make them more useable. In January 2004, the book was enhanced with the creation of a Navigation page, plus the addition of links, web links and bookmarks to improve ease of use.
The book was split into separate files to minimize download times for World Wide Web presentation. |
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