U.S Geological Survey
Open-File Report 98-38

Geology, Geochemistry, Geophysics, Mineral
Occurrences and Mineral Resource Assessment
for the Commonwealth of Puerto Rico

by U.S. Geological Survey Minerals Team
Editor: Walter J. Bawiec
In Cooperation with:
Puerto Rico Department of Natural Resources
University of Puerto Rico at Mayagüez


PDF files included are:
1. Manuscript.PDF - includes all text and serves as the main body of the manuscript;
2. Graphics.PDF - includes all maps and figures referred to in Text.PDF;
3. Legends.PDF - includes all legends necessary for understanding colors and
patterns used on maps. Most maps are linked to legends. (Links are
obvious when a ‘blue border’ surrounds the map and a pointed finger icon
appears.);
4. Geochem.PDF - contains all the tables and figures referred to in geochemistry text;
5. Models.PDF - includes digital copies of mineral deposit descriptive models and grade
and tonnage models for deposits of Puerto Rico;
6. Appendix.PDF - includes all appendices referred to in the text. These include:
Appendix A. - Geologic Map Unit Descriptions
Appendix B. - Metallic Mineral Occurrences
Appendix C. - Nonmetallic Mineral Occurrences
Appendix D. - Geochemical Databases (dBase format)
Appendix E. - Complete Puerto Rico MRDS records and GSSEARCH
retrieval software.