Overview

The Commonwealth of Puerto Rico has been investigated over a very long period of time by earth scientists from many disciplines and with diverse objectives in the studies. This publication attempts to apply much of the geologic, geochemical, geophysical, and mineral occurrence information to a single objective focused on producing a mineral resource assessment for the Commonwealth of Puerto Rico. However, the value of this publication lies not within the results of the mineral resource assessment nor within the interactive PDF files which can be viewed on the screen, but within the geologic, geochemical, geophysical, and mineral occurrence digital map coverages and databases which can be used for their own unique applications.

The mineral resource assessment of Puerto Rico represents compilation of several decades of mineral investigations and studies. These investigations have been the joint efforts of the U.S. Geological Survey, the Puerto Rico Department of Natural Resources, and the University of Puerto Rico. This report contains not only the mineral-resource assessment, but also much of the scientific evidence upon which the assessment was based.

Directory Organization

pdf

Contains the descriptive text, with the subdirectory tables. The main report file is manuscript.pdf.

appendix_d

USGS Open-File Report 92-353 text is contained in this folder as a PDF file and geochemical sample analysis as dbase format. These include sample analysis for the main island of Puerto Rico, and Culebra and Vieques.

appendix_e

Contains complete Puerto Rico MRDS mineral occurrence data and GSSTK retrieval software. See Appendix E Read Me for installation instructions.

eps

Contains Encapsulated PostScript plot files for those users who can use them. They are in an ASCII file format. These EPS files are provided to allow the user to produce their own plots or PDF files. File root names ending in 'hp' use color sets preferred by HP plotters.

tiff

Tagged Image File Format. These files, which are mostly geophysical maps, were scanned in order to provide a raster image to users.

export

Contains all map coverages provided in ARC/INFO export format. (ARC/INFO 7.1.1)

metadata

Contains metadata files for the included geospatial data.

plots

Contains GRA graphic plot files for map coverages and legends. These files are used to produce plots on Versatec electrostatic plotters.

aml

Copies of all aml's used to produce map coverages. Many of the map coverages are compilations and overlays of individual thematic layers, also provided. This information can be quite useful in understanding the thematic layers used and in recreating the plot file on the user's own system.

Posted online October 19, 2009
CD originally published in 1998