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<A name="Top" />
<H1>Geology of the Island of Puerto Rico, at a Scale of 1:100,000</H1>
<H2>Metadata:</H2>
<UL>
<LI><A HREF="#Identification_Information">Identification_Information</A></LI>
<LI><A HREF="#Data_Quality_Information">Data_Quality_Information</A></LI>
<LI><A HREF="#Spatial_Data_Organization_Information">Spatial_Data_Organization_Information</A></LI>
<LI><A HREF="#Spatial_Reference_Information">Spatial_Reference_Information</A></LI>
<LI><A HREF="#Spatial_Reference_Information">Spatial_Reference_Information</A></LI>
<LI><A HREF="#Entity_and_Attribute_Information">Entity_and_Attribute_Information</A></LI>
<LI>
<A HREF="#33485440">

                  Distribution_Information
                </A>
</LI>
<LI><A HREF="#Metadata_Reference_Information">Metadata_Reference_Information</A></LI>
</UL>
<A name="Identification_Information"><HR /></A>
<DL>
<DT><I>Identification_Information:</I></DT>
<DD>
<DL>
<DT><I>Citation:</I></DT>
<DD>
<DL>
<DT><I>Citation_Information:</I></DT>
<DD>
<DL>
<DT><I>Originator:</I>
Krushensky, Richard D.</DT>
<DT><I>Publication_Date:</I>
2000</DT>
<DT><I>Title:</I></DT>
<DD>Geology of the Island of Puerto Rico, at a Scale of 1:100,000</DD>
<DT><I>Geospatial_Data_Presentation_Form:</I>
Map</DT>
<DT><I>Series_Information:</I></DT>
<DD>
<DL>
<DT><I>Series_Name:</I>
U.S Geological Survey Open-File Report</DT>
<DT><I>Issue_Identification:</I>
USGS OFR 98-38</DT>
</DL>
</DD>
<DT><I>Publication_Information:</I></DT>
<DD>
<DL>
<DT><I>Publication_Place:</I>
Reston, Virginia</DT>
<DT><I>Publisher:</I>
U.S. Geological Survey</DT>
</DL>
</DD>
<DT><I>Online_Linkage:</I>
<A TARGET="viewer" HREF="http://gis.otg.pr.gov/download_gis_files.htm">
http://gis.otg.pr.gov/download_gis_files.htm</A>
</DT>
</DL>
</DD>
</DL>
</DD>
<DT><I>Description:</I></DT>
<DD>
<DL>
<DIV>
<DT><I>Abstract:</I></DT>
<PRE ID="original">The geologic map of the Commonwealth of Puerto Rico for this study consists of a main island and the three largest surrounding islands of Isla de Vieques, Isla de Culebra, and Isla de Mona.
The  geologic map of the main island of Puerto Rico has been partitioned into three sections(west; central; east ) and is based upon a 1:100,000 scale compilation by R.D. Krushensky of sixty-seven geologic quadrangles, sixty-two of which were mapped at a scale of 1:20,000.  Compilation of the geologic map for the main island of Puerto Rico was initiated in order to produce a more recent and useful geologic map to be used by both government and industry.  Because of the length of time over which these geologic quadrangles were mapped and the large number of individuals involved in the mapping, reinterpretation of the original data for some quadrangles  was necessary.
The geologic maps for the above-mentioned three surrounding islands (Isla de Vieques, Isla de Culebra, and Isla de Mona) are not included in the 1:100,000 scale compilation, but reflect the general geologic features at a scale of 1:240,000 as presented in Cox and Briggs, 1973, Metallogenic Map of Puerto Rico, USGS Map I-721.
The geologic map used in this study of the geology of Puerto Rico is presented at a scale of 1:100,000 and consists of 151 map units for the main island.</PRE>
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</DIV>
<DIV>
<DT><I>Purpose:</I></DT>
<PRE ID="original">The purpose in creating this digital map was to enable the combination, analysis and manipulation of geology and other digital thematic data (geochemistry, geophysics, mineral occurrences) relevant to the mineral resource assessment, and to provide a useful product to an ever-growing Geographic Information System (GIS) community.
The digital geologic map of Puerto Rico allows for the analysis and manipulation of information which is impossible with hard copy (paper). Maps can be reproduced at varying scales and at different projections without a great deal of difficulty. Derivative maps can also be produced by combining map units (i.e. all intrusive map units), or selecting only combinations of map units for which there is an interest.</PRE>
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</DIV>
<DIV>
<DT><I>Supplemental_Information:</I></DT>
<PRE ID="original">The geologic maps, as shown, consist of several overlying coverages. Besides the geologic coverage (West, Central, East), each map also has a normal fault coverage (faultw200n, faultc200n, faulte200n) and a thrust fault coverage (faultw200, faultc200, faulte200), respectively.

The colors and patterns used on the geologic maps are keyed to the geologic map unit (FMATN) attribute in the Polygon Attribute Table (PAT) for each coverage. The item FMATN in each coverage is linked to an item FMATN in lookup tables for color (prcolor.lut), patterns (prshade.lut) and terranes (prprov.lut).

The user should examine AML files (WEST.AML, CENTRAL.AML, EAST.AML) in the AML Folder contained on the cd-rom (USGS Open-File Report 98-38) to see how the maps were constructed.</PRE>
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</DIV>
</DL>
</DD>
<DT><I>Time_Period_of_Content:</I></DT>
<DD>
<DL>
<DT><I>Time_Period_Information:</I></DT>
<DD>
<DL>
<DT><I>Single_Date/Time:</I></DT>
<DD>
<DL>
<DT><I>Calendar_Date:</I>
1999</DT>
</DL>
</DD>
</DL>
</DD>
<DIV>
<DT><I>Currentness_Reference:</I></DT>
<PRE ID="original">1999</PRE>
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</DIV>
</DL>
</DD>
<DT><I>Status:</I></DT>
<DD>
<DL>
<DT><I>Progress:</I>
Complete</DT>
<DT><I>Maintenance_and_Update_Frequency:</I>
None planned</DT>
</DL>
</DD>
<DT><I>Spatial_Domain:</I></DT>
<DD>
<DL>
<DT><I>Bounding_Coordinates:</I></DT>
<DD>
<DL>
<DT><I>West_Bounding_Coordinate:</I>
-66.1361987</DT>
<DT><I>East_Bounding_Coordinate:</I>
-65.5739515</DT>
<DT><I>North_Bounding_Coordinate:</I>
18.47414418</DT>
<DT><I>South_Bounding_Coordinate:</I>
17.94551129</DT>
</DL>
</DD>
</DL>
</DD>
<DT><I>Keywords:</I></DT>
<DD>
<DL>
<DT><I>Theme:</I></DT>
<DD>
<DL>
<DT><I>Theme_Keyword_Thesaurus:</I>
None</DT>
<DT><I>Theme_Keyword:</I>
Geology</DT>
</DL>
</DD>
<DT><I>Place:</I></DT>
<DD>
<DL>
<DT><I>Place_Keyword_Thesaurus:</I>
None</DT>
<DT><I>Place_Keyword:</I>
Puerto Rico</DT>
</DL>
</DD>
</DL>
</DD>
<DT><I>Access_Constraints:</I>
None</DT>
<DIV>
<DT><I>Use_Constraints:</I></DT>
<PRE ID="original">Anyone who uses these data must cite U.S Geological Survey.
These data are not to be used at scales showing more detail than 1:100,000.</PRE>
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</DIV>
<DT><I>Point_of_Contact:</I></DT>
<DD>
<DL>
<DT><I>Contact_Information:</I></DT>
<DD>
<DL>
<DT><I>Contact_Person_Primary:</I></DT>
<DD>
<DL>
<DT><I>Contact_Person:</I>
Bawiec, Walter J.</DT>
<DT><I>Contact_Organization:</I>
U.S Geological Survey</DT>
</DL>
</DD>
<DT><I>Contact_Position:</I>
Geologist</DT>
<DT><I>Contact_Address:</I></DT>
<DD>
<DL>
<DT><I>Address_Type:</I>
mailing address</DT>
<DIV>
<DT><I>Address:</I></DT>
<PRE ID="original">954 National Center
12201 Sunrise Valley Drive</PRE>
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</DIV>
<DT><I>City:</I>
Reston</DT>
<DT><I>State_or_Province:</I>
Virginia</DT>
<DT><I>Postal_Code:</I>
20192</DT>
<DT><I>Country:</I>
United States</DT>
</DL>
</DD>
<DT><I>Contact_Voice_Telephone:</I>
703-648-6148</DT>
<DT><I>Contact_Facsimile_Telephone:</I>
703-648-6383</DT>
<DT><I>Contact_Electronic_Mail_Address:</I>
wbawiec@usgs.gov</DT>
</DL>
</DD>
</DL>
</DD>
<DIV>
<DT><I>Data_Set_Credit:</I></DT>
<PRE ID="original">Richard D. Krushensky compiled the 1:100,000 scale geologic map from individual 1:20,000 scale quadrangle maps. Walter J. Bawiec scanned, vectorized, registered, projected, tagged, edited, and created the Arc/Info coverages.</PRE>
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</DIV>
<DT><I>Native_Data_Set_Environment:</I></DT>
<DD>Windows_NT, 4.0, Intel
ARC/INFO version 7.1.1</DD>
</DL>
</DD>
</DL>
<A HREF="#Top">Back to Top</A>
<A name="Data_Quality_Information"><HR /></A>
<DL>
<DT><I>Data_Quality_Information:</I></DT>
<DD>
<DL>
<DT><I>Attribute_Accuracy:</I></DT>
<DD>
<DL>
<DIV>
<DT><I>Attribute_Accuracy_Report:</I></DT>
<PRE ID="original">The polygons shown on the coverages have been tagged with map unit mnemonics within the attribute 'FMATN'. The attribute 'fmatn' is used as a link to lookup tables to color the polygons (prcolor.lut) and to add patterns (prshade.lut). They are also used to create the terrane map (prprov.lut).
Therefore, the 'FMATN' attribute is very important and has been reviewed several times in creating and editing these coverages. However, it is possible that some polygons have been mislabeled with the wrong map unit mnemonic. It is not believed, however, that any large units are mislabeled because of the extensive reviews the maps have under gone.</PRE>
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</DIV>
</DL>
</DD>
<DIV>
<DT><I>Logical_Consistency_Report:</I></DT>
<PRE ID="original">Polygon and chain-node topology present.
All polygons have a label.

The Commonwealth of Puerto Rico is displayed as five separate coverages. One coverage Mona, is at a scale of 1:240,000 and shows Isla de Mona. One coverage Vieques, is at the scale of 1:240,000 and shows the islands of Isla de Vieques and Isla de Culebra. Three coverages (West, Central, East) show the main island of Puerto Rico at a scale of 1:100,000. The main island is split into three pieces for ease in editing and displaying such detailed coverages.

Some structural attributes, such as anticlines and synclines, are displayed on the maps. They were on the original geenline that was scanned and are left on the maps because of the added structural information they convey.</PRE>
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</DIV>
<DIV>
<DT><I>Completeness_Report:</I></DT>
<PRE ID="original">Digital maps shown in this study include the main island of Puerto Rico, Isla de Mona, and Isla de Vieques. Smaller islands located offshore, including Isla Desecheo, are not part of this study.</PRE>
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</DIV>
<DT><I>Positional_Accuracy:</I></DT>
<DD>
<DL>
<DT><I>Horizontal_Positional_Accuracy:</I></DT>
<DD>
<DL>
<DIV>
<DT><I>Horizontal_Positional_Accuracy_Report:</I></DT>
<PRE ID="original">The East coverage has a Root Mean Square (RMS) error of 28.566 meters, which means locations shown on the digital coverages are within 28.566 meters of their location on the ground. This error was computed  during the transformation of coordinates from scanning units (inches) to polyconic meters.</PRE>
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</DIV>
</DL>
</DD>
</DL>
</DD>
<DT><I>Lineage:</I></DT>
<DD>
<DL>
<DT><I>Source_Information:</I></DT>
<DD>
<DL>
<DT><I>Source_Citation:</I></DT>
<DD>
<DL>
<DT><I>Citation_Information:</I></DT>
<DD>
<DL>
<DT><I>Originator:</I>
U.S Geological survey</DT>
<DT><I>Publication_Date:</I>
1999</DT>
<DT><I>Title:</I></DT>
<DD>Geology, Geochemistry, Geophysics, Mineral Occurrences and Mineral Resource Assessment for the Commonwealth of Puerto Rico</DD>
<DT><I>Geospatial_Data_Presentation_Form:</I>
cd-rom</DT>
<DT><I>Series_Information:</I></DT>
<DD>
<DL>
<DT><I>Series_Name:</I>
USGS Open-File Report</DT>
<DT><I>Issue_Identification:</I>
USGS Open-File Report 98-38</DT>
</DL>
</DD>
<DT><I>Publication_Information:</I></DT>
<DD>
<DL>
<DT><I>Publication_Place:</I>
Reston, Virginia</DT>
<DT><I>Publisher:</I>
U.S. Geological Survey</DT>
</DL>
</DD>
</DL>
</DD>
</DL>
</DD>
<DT><I>Source_Scale_Denominator:</I>
100,000</DT>
<DT><I>Type_of_Source_Media:</I>
Mylar</DT>
<DT><I>Source_Time_Period_of_Content:</I></DT>
<DD>
<DL>
<DT><I>Time_Period_Information:</I></DT>
<DD>
<DL>
<DT><I>Single_Date/Time:</I></DT>
<DD>
<DL>
<DT><I>Calendar_Date:</I>
1999</DT>
</DL>
</DD>
</DL>
</DD>
<DT><I>Source_Currentness_Reference:</I></DT>
<DD>publication date</DD>
</DL>
</DD>
<DT><I>Source_Citation_Abbreviation:</I></DT>
<DD>(none)</DD>
<DIV>
<DT><I>Source_Contribution:</I></DT>
<PRE ID="original">The following published 1:20,000 scale geologic maps were used to create the 1:100,000 scale geologic map of Puerto Rico.

Quadrangle name	and Reference

Adjuntas
Mattson, P.H., 1968, Geologic map of the Adjuntas Quadrangle, Puerto Rico:  U.S. Geological Survey Miscellaneous Investigations Map I-519, scale 1:20,000.

Aguadilla
Monroe, W.H., 1969a, Geologic map of the Aguadilla Quadrangle, Puerto Rico:  U.S. Geological Survey Miscellaneous Investigation Map I-569, scale 1:20,000.

Aguas Buenas
Pease, M.H., Jr., 1968b, Geologic map of the Aguas Buenas Quadrangle, Puerto Rico:  U.S. Geological Survey Miscellaneous Investigations Map I-479, scale 1:20,000.

Arecibo
Briggs, R.P., 1968c, Geologic map of the Arecibo Quadrangle, Puerto Rico:  U.S. Geological Survey Miscellaneous Geologic Investigations Map I-551, Scale 1:20,000.

Barceloneta
Briggs, R.P., 1965, Geologic map of the Barceloneta Quadrangle, Puerto Rico:  U.S. Geological Survey Miscellaneous Investigations Map I-421, scale 1:20,000.

Barranquitas
Briggs, R.P., and Gelabert, P.A., 1962, Preliminary report of the geology of the Barranquitas Quadrangle, Puerto Rico:  U.S. Geological Survey Miscellaneous Investigations Map I-336, scale 1:20,000, 2 sheets.

Bayamon
Monroe, W.H., and Pease, M.H., 1962, Preliminary geologic map of the Bayamon Quadrangle, Puerto Rico:  U.S. Geological Survey Miscellaneous Geologic Investigations Map I-347, scale 1:20,000.
Monroe, W.H., 1973, Geologic map of the Bayamon Quadrangle, Puerto Rico:  U.S. Geological Survey Miscellaneous Investigations Map I-751, scale 1:20,000.

Bayaney
Nelson, A.E., and Tobisch, Q.T., 1968, Geologic map of the Bayaney quadrangle, Puerto Rico:  U.S. Geological Survey Miscellaneous Investigations Map I-525, scale 1:20,000.

Cabo Rojo
Volckmann, R.P., 1984a, Geologic map of the Cabo Rojo-Parguera Quadrangle, southwest Puerto Rico:  U.S. Geological Survey Miscellaneous Investigations Map I-1557, scale 1:20,000.

Caguas
Rogers, C.L., 1979, Geologic map of the Caguas Quadrangle, Puerto Rico:  U.S. Geological Survey Miscellaneous Investigations Map I-1152, scale 1:20,000.

Camuy
Monroe, W.H., 1963b, Geology of the Camuy Quadrangle, Puerto Rico:  U.S. Geological Survey Geologic Quadrangle GQ-197, scale 1:20,000.

Carolina
Monroe, W.H., 1977, Geologic map of the Carolina quadrangle, Puerto Rico:  U.S. Geological Survey Miscellaneous Investigations Map I-1054, scale 1:20,000.

Cayey
Berryhill, H.L., and Glover, Lynn, 1960, Geology of the Cayey Quadrangle, Puerto Rico:  U.S. Geological Survey Miscellaneous Geologic Investigations Map I-319, scale 1:20,000.

Cayo Icacos
Briggs, R.P., and Aguilar-Cortes, E., 1980, Geologic map of the Fajardo and Cayo Icacos Quadrangles, Puerto Rico:  U.S. Geological Survey Miscellaneous Investigations Map I-1153, scale 1:20,000.

Central Aguirre
Berryhill, H.L., Jr., 1960, Geology of the Central Aguirre Quadrangle, Puerto Rico:  U.S. Geological Survey Miscellaneous Investigations Map I-318, scale 1:20,000.

Central La Plata
McIntyre, D.H., 1971, Geologic map of the Central La Plata Quadrangle, Puerto Rico:  U.S. Geological Survey Miscellaneous Geologic Investigations Map I-660, scale 1:20,000.

Ciales
Berryhill, H.L., Jr., 1965, Geology of the Ciales quadrangle, Puerto Rico:  U.S. Geological Survey Bulletin 1184, scale 1:20,000.

Coamo
Glover, III, Lynn, 1961a, Preliminary report on the geology of the Coamo Quadrangle, Puerto Rico:  U.S. Geological Survey Miscellaneous Geologic Investigations Map I-335, scale 1:20,000.

Comerio
Pease, M.H., and Briggs, R.P., 1960, Geology of the Comerio Quadrangle, Puerto Rico:  U.S. Geological Survey Miscellaneous Geologic Investigations Map I-320, scale 1:20,000.

Corozal
Nelson, A.E., 1967a, Geologic Map of the Corozal Quadrangle, Puerto Rico:  U.S. Geological Survey Miscellaneous Investigations Map I-473, scale 1:20,000.

El Yunque
Seiders, V.M., 1971a, Geologic map of the El Yunque quadrangle, Puerto Rico:  U.S. Geological Survey Miscellaneous Investigations Map I-658.

Fajardo
Briggs, R.P., and Aguilar-Cortes, E., 1980, Geologic map of the Fajardo and Cayo Icacos Quadrangles, Puerto Rico:  U.S. Geological Survey Miscellaneous Investigations Map I-1153, scale 1:20,000.

Guanica
Monroe, W.H., 1972, Geology of the middle Tertiary rock in the Ponce-Guanica area, Puerto Rico:  U.S. Geological Survey Open-File Report Series no. 1712.

Florida
Nelson, A.E., and Monroe, W.H., 1966, Geology of the Florida quadrangle, Puerto Rico:  U.S. Geological Survey Bulletin 1221-C, scale 1:20,000.

Guayama
Glover, Lynn, 1982, Preliminary geologic map of the Patillas and Guayama Quadrangles, Puerto Rico:  U.S. Geological Survey Open-File Report 82-1097, scale 1:20,000.

Gurabo
Seiders, V.M., 1971c, Geologic map of the Gurabo Quadrangle, Puerto Rico:  U.S. Geological Survey Miscellaneous Geologic Investigations Map I-657, scale 1:20,000.

Humacao
M'Gonigle, J.W., 1978a, Geologic map of the Humacao Quadrangle, Puerto Rico:  U.S. Geological Survey Miscellaneous Investigations Map I-1070, scale 1:20,000.

Isabela
Monroe, W.H., 1969b, Geologic map of the Moca and Isabela Quadrangles, Puerto Rico:  U.S. Geological Survey Miscellaneous Geologic Investigations Map I-565, scale 1:20,000.

Isla de Mona
Briggs, R.P., and Seiders, V.M., 1972, Geologic map of the Isla de Mona Quadrangle, Puerto Rico:  U.S. Geological Survey Miscellaneous Geologic Investigations Map I-718, 1 sheet, scale 1:20,000.

Isla Descheo
Seiders, V.M., Briggs, R.P., and Gover, L., III, 1972, Geology of Isla Descheo, Puerto Rico, with notes on the great southern Puerto Rico fault zone and quaternary stillstands of the sea:  U.S. Geological Survey Professional Paper 739, Washington, D.C., scale 1:9,500.

Jayaya
Mattson, P.H., 1986b, Geologic map of the Jayaya quadrangle, Puerto Rico:  U.S. Geological Survey Miscellaneous Investigations Map I-520.

Juncos
Broedal, C.H., 1961, Preliminary geologic map showing iron and copper prospects in the Juncos Quadrangle, Puerto Rico:  U.S. Geological Survey Miscellaneous Investigations Map I-326, scale 1:20,000.

Manati
Monroe, W.H., 1971, Geology of the Manati Quadrangle, Puerto Rico:  U.S. Geological Survey Miscellaneous Investigations Map I-671, scale 1:20,000.

Maricao
McIntyre, D.H., 1976, Geologic map of the Maricao quadrangle, western Puerto Rico:  U.S. Geological Survey Miscellaneous Investigations Map I-918, scale 1:20,000.

Mayaguez
Curet, A.F., 1986, Geologic map of the Mayaguez and Rosario Quadrangles, Puerto Rico:  U.S. Geological Survey Miscellaneous Investigations Map I-1657, scale 1:20,000.

Moca
Monroe, W.H., 1969b, Geologic map of the Moca and Isabela Quadrangles, Puerto Rico:  U.S. Geological Survey Miscellaneous Geologic Investigations Map I-565, scale 1:20,000.

Monte Guilarte
Krushensky, R.D., and Curet, A.F., 1984, Geologic map of the Monte Guilarte quadrangle, Puerto Rico:  U.S. Geological Survey Miscellaneous Investigations Map I-1556, scale 1:20,000.

Naguabo
M'Gonigle, J.W., 1979, Geologic map of the Naguabo and part of the Punta Puerca Quadrangles, Puerto Rico:  U.S. Geological Survey Miscellaneous Investigations Map I-1099, scale 1:20,000.

Naranjito
Pease, M.H., 1968c, Geologic map of the Naranjito Quadrangle, Puerto Rico:  U.S. Geological Survey Miscellaneous Investigations Map I-508, scale 1:20,000.

Orocovis
Briggs, R.P., 1971a, Geologic map of the Orocovis Quadrangle, Puerto Rico:  U.S. Geological Survey Miscellaneous Investigations Map I-615, 1 sheet, scale 1:20,000.

Parguera
Volckman, R.P., 1984a, Geologic map of the Cabo Rojo-Paguera quadrangles, southwest Puerto Rico:  U.S. Geological Survey Miscellaneous Investigations Map I-1557, scale 1:20,000.

Patillas
Glover, Lynn, 1982, Preliminary geologic map of the Patillas and Guayama Quadrangles, Puerto Rico:  U.S. Geological Survey Open-File Report 82-1097, scale 1:20,000.

Peñuelas
Krushensky, R.D., and Monroe, W.H., 1978, Geologic map of the Peñuelas and Punta Cuchara Quadrangles, Puerto Rico:  U.S. Geological Survey Miscellaneous Investigations Map I-1042, scale 1:20,000.

Playa de Ponce
Glover, L., Pease, M.H., and Arnow, T., 1977, Surficial geologic map of the Playa de Ponce and Santa Isabel Quadrangles, Puerto Rico:  U.S. Geological Survey Miscellaneous Field Studies Map MF-886, scale 1:20,00.

Ponce
Krushensky, R.D., and Monroe, W.H., 1975, Geologic map of the Ponce Quadrangle, Puerto Rico:  U.S. Geological Survey Miscellaneous Investigations Map I-863, scale 1:20,000.

Puerto Real
Volckmann, R.P., 1984b, Geologic map of the Puerto Real Quadrangle, southwest Puerto Rico:  U.S. Geological Survey Miscellaneous Investigations Map I-559, scale 1:20,000.

Punta Cuchara
Krushensky, R.D., and Monroe, W.H., 1978, Geologic map of the Peñuelas and Punta Cuchara Quadrangles, Puerto Rico:  U.S. Geological Survey Miscellaneous Investigations Map I-1042, scale 1:20,000.

Punta Guayanes
Rogers, C.L., 1977, Geologic map of the Punta Guayanes Quadrangle, Puerto Rico:  U.S. Geological Survey Miscellaneous Investigations Map I-998, scale 1:20,000.

Punta Puerca
M'Gonigle, J.W., 1979, Geologic map of the Naguabo and part of the Punta Puerca Quadrangles, Puerto Rico:  U.S. Geological Survey Miscellaneous Investigations Map I-1099, scale 1:20,000.

Punta Tuna
Rogers, C.L., Cram, C.M., Pease, M.H., and Tischler, M.S., 1979, Geologic map of the Yabucoa and Punta Tuna Quadrangles, Puerto Rico:  U.S. Geological Survey Miscellaneous Investigations Map I-1086, scale 1:20,000.

Punta Verraco
Krushensky, R.D., and Monroe, W.H., 1979, Geologic map of the Yauco and Punta Verraco Quadrangles, Puerto Rico:  U.S. Geological Survey Miscellaneous Investigations Map I-1147, scale 1:20,000.

Quebradillas
Monroe, W.H., 1967a, Geologic map of the Quebradillas Quadrangle, Puerto Rico:  U.S. Geological Survey Miscellaneous Investigations Map I-498, scale 1:20,000.

Rio Descalabrado
Glover, Lynn, III, and Matson, P.H., 1973, Geologic map of the Rio Descalabrado Quadrangle, Puerto Rico:  U.S. Geological Survey Miscellaneous Investigations Map I-735, scale 1:20,000.

Rincon
Aaron, J.M., 1968, Geology of the Rincon Quadrangle, a preliminary report:  Washington, D.C., U.S. Geological Survey

Rio Grande
Pease, M.H., 1972, Geologic map of the Rio Grande quadrangle, Puerto Rico:  U.S. Geological Survey Miscellaneous Investigations Map I-733, scale 1:20,000.

Rosario
Curet, A.F., 1986, Geologic map of the Mayaguez and Rosario Quadrangles, Puerto Rico:  U.S. Geological Survey Miscellaneous Investigations Map I-1657, scale 1:20,000.

Salinas
Glover, Lynn, III, 1961b, Preliminary geologic map of the Salinas Quadrangle, Puerto Rico:  U.S. Geological Survey Miscellaneous Investigations Map I-337, scale 1:20,000.

San German
Volckmann, R.P., 1984c, Geologic map of the San German Quadrangle, southwest Puerto Rico:  U.S. Geological Survey Miscellaneous Investigations Map I-558, scale 1:20,000.

San Juan
Pease, M.H., and Monroe, W.H., 1977, Geologic map of the San Juan Quadrangle, Puerto Rico:  U.S. Geological Survey Miscellaneous Investigations Map I-1010, scale 1:20,000.

San Sebastian
Tobisch, Q.T., and Turner, M.D., 1971, Geologic map of the San Sebastian quadrangle, Puerto Rico:  U.S. Geological Survey Miscellaneous Investigations Map I-661, scale 1:20,000.

Santa Isabel
Glover, L., Pease, M.H., and Arnow, T., 1977, Surficial geologic map of the Playa de Ponce and Santa Isabel Quadrangles, Puerto Rico:  U.S. Geological Survey Miscellaneous Field Studies Map MF-886, scale 1:20,00.

Utuado
Nelson, A.E., 1967b, Geologic map of the Utuado Quadrangle, Puerto Rico:  U.S. Geological Survey Miscellaneous Investigations Map I-480, scale 1:20,000.

Vega Alta
Monroe, W.H., 1963a, Geology of the Vega Alta Quadrangle, Puerto Rico:  U.S. Geological Survey Geologic Quadrangle Map GQ-191, scale 1:20,000.

Yabucoa
Rogers, C.L., Cram, C.M., Pease, M.H., and Tischler, M.S., 1979, Geologic map of the Yabucoa and Punta Tuna Quadrangles, Puerto Rico:  U.S. Geological Survey Miscellaneous Investigations Map I-1086, scale 1:20,000.

Yauco
Krushensky, R.D., and Monroe, W.H., 1979, Geologic map of the Yauco and Punta Verraco Quadrangles, Puerto Rico:  U.S. Geological Survey Miscellaneous Investigations Map I-1147, scale 1:20,000.</PRE>
<SCRIPT>fix(original)</SCRIPT>
</DIV>
</DL>
</DD>
<DT><I>Process_Step:</I></DT>
<DD>
<DL>
<DIV>
<DT><I>Process_Description:</I></DT>
<PRE ID="original">Geology from 1:20,000 scale quadrangle maps was interpreted, contacts resolved with adjoining quadrangles, and transposed in ink onto a 1:100,000 greenline base map. This was also done with major faults and fault systems.
The inked geologic contacts and thicker-drawn faults were scanned on an optical drum scanner and vectorized.
Arc/Info was used to build polygon topology, edit linework, put labels into polygons, and to add attributes to labels.

The coverage was projected to the Lambert conformal conic from polyconic projection by</PRE>
<SCRIPT>fix(original)</SCRIPT>
</DIV>
</DL>
</DD>
<DT><I>Process_Step:</I></DT>
<DD>
<DL>
<DIV>
<DT><I>Process_Description:</I></DT>
<PRE ID="original">Metadata imported.</PRE>
<SCRIPT>fix(original)</SCRIPT>
</DIV>
<DT><I>Source_Used_Citation_Abbreviation:</I></DT>
<DD>Y:\Downloads\Metadata\Geologia_general.xml</DD>
<DT><I>Process_Date:</I>
20120711</DT>
<DT><I>Process_Time:</I>
14511900</DT>
</DL>
</DD>
<DT><I>Process_Step:</I></DT>
<DD>
<DL>
<DIV>
<DT><I>Process_Description:</I></DT>
<PRE ID="original">Some processing was made to the original geodata published by the USGS. First a process of finding typographic errors in units labeled as "Tag" being "Ta". Then running manual cleaning of data in the eastern-central part between Cayey-Caguas-Patillas quadrangles. Next step was to run "dissolve" function in ArcGIS, aggregating adjacent areas with the same geologic unit code (FMATN). Finally a couple of fields were added to the attribute table: "unit_name" and "web" both of string data types, holding the name of the geologic unit and a web link to the description of each unit name.</PRE>
<SCRIPT>fix(original)</SCRIPT>
</DIV>
<DT><I>Process_Date:</I>
20120709</DT>
<DT><I>Process_Contact:</I></DT>
<DD>
<DL>
<DT><I>Contact_Information:</I></DT>
<DD>
<DL>
<DT><I>Contact_Organization_Primary:</I></DT>
<DD>
<DL>
<DT><I>Contact_Organization:</I>
PR Office of Management and Budget</DT>
</DL>
</DD>
<DT><I>Contact_Position:</I>
GIS Specialist</DT>
<DT><I>Contact_Address:</I></DT>
<DD>
<DL>
<DT><I>Address_Type:</I>
mailing address</DT>
<DIV>
<DT><I>Address:</I></DT>
<PRE ID="original">Calle Cruz 254</PRE>
<SCRIPT>fix(original)</SCRIPT>
</DIV>
<DT><I>City:</I>
San Juan</DT>
<DT><I>State_or_Province:</I>
PR</DT>
<DT><I>Postal_Code:</I>
00902-3228</DT>
<DT><I>Country:</I>
Puerto Rico</DT>
</DL>
</DD>
<DT><I>Contact_Voice_Telephone:</I>
787.725.9420</DT>
<DT><I>Contact_Electronic_Mail_Address:</I>
isantiago@ogp.pr.gov</DT>
</DL>
</DD>
</DL>
</DD>
</DL>
</DD>
</DL>
</DD>
</DL>
</DD>
</DL>
<A HREF="#Top">Back to Top</A>
<A name="Spatial_Data_Organization_Information"><HR /></A>
<DL>
<DT><I>Spatial_Data_Organization_Information:</I></DT>
<DD>
<DL>
<DT><I>Direct_Spatial_Reference_Method:</I>
Vector</DT>
<DT><I>Point_and_Vector_Object_Information:</I></DT>
<DD>
<DL>
<DT><I>SDTS_Terms_Description:</I></DT>
<DD>
<DL>
<DT><I>SDTS_Point_and_Vector_Object_Type:</I>
Point</DT>
<DT><I>Point_and_Vector_Object_Count:</I>
1626</DT>
</DL>
</DD>
<DT><I>SDTS_Terms_Description:</I></DT>
<DD>
<DL>
<DT><I>SDTS_Point_and_Vector_Object_Type:</I>
String</DT>
<DT><I>Point_and_Vector_Object_Count:</I>
10390</DT>
</DL>
</DD>
<DT><I>SDTS_Terms_Description:</I></DT>
<DD>
<DL>
<DT><I>SDTS_Point_and_Vector_Object_Type:</I>
GT-polygon composed of chains</DT>
<DT><I>Point_and_Vector_Object_Count:</I>
1626</DT>
</DL>
</DD>
</DL>
</DD>
</DL>
</DD>
</DL>
<A HREF="#Top">Back to Top</A>
<A name="Spatial_Reference_Information"><HR /></A>
<DL>
<DT><I>Spatial_Reference_Information:</I></DT>
<DD>
<DL>
<DT><I>Horizontal_Coordinate_System_Definition:</I></DT>
<DD>
<DL>
<DT><I>Planar:</I></DT>
<DD>
<DL>
<DT><I>Map_Projection:</I></DT>
<DD>
<DL>
<DT><I>Map_Projection_Name:</I>
Lambert Conformal Conic</DT>
<DT><I>Lambert_Conformal_Conic:</I></DT>
<DD>
<DL>
<DT><I>Standard_Parallel:</I>
18.033333</DT>
<DT><I>Standard_Parallel:</I>
18.433333</DT>
<DT><I>Longitude_of_Central_Meridian:</I>
-66.433333</DT>
<DT><I>Latitude_of_Projection_Origin:</I>
17.833333</DT>
<DT><I>False_Easting:</I>
200000.000000</DT>
<DT><I>False_Northing:</I>
200000.000000</DT>
</DL>
</DD>
</DL>
</DD>
</DL>
</DD>
</DL>
</DD>
<DT><I>Vertical_Coordinate_System_Definition:</I></DT>
<DD>
<DL>
<DT><I>Altitude_System_Definition:</I></DT>
<DD>
<DL>
<DT><I>Altitude_Resolution:</I>
1.000000</DT>
<DT><I>Altitude_Encoding_Method:</I>
Explicit elevation coordinate included with horizontal coordinates</DT>
</DL>
</DD>
</DL>
</DD>
</DL>
</DD>
</DL>
<A HREF="#Top">Back to Top</A>
<A name="Spatial_Reference_Information"><HR /></A>
<DL>
<DT><I>Spatial_Reference_Information:</I></DT>
<DD>
<DL>
<DT><I>Horizontal_Coordinate_System_Definition:</I></DT>
<DD>
<DL>
<DT><I>Planar:</I></DT>
<DD>
<DL>
<DT><I>Map_Projection:</I></DT>
<DD>
<DL>
<DT><I>Map_Projection_Name:</I>
Lambert Conformal Conic</DT>
<DT><I>Lambert_Conformal_Conic:</I></DT>
<DD>
<DL>
<DT><I>Standard_Parallel:</I>
18.033333</DT>
<DT><I>Standard_Parallel:</I>
18.433333</DT>
<DT><I>Longitude_of_Central_Meridian:</I>
-66.433333</DT>
<DT><I>Latitude_of_Projection_Origin:</I>
17.833333</DT>
<DT><I>False_Easting:</I>
200000.000000</DT>
<DT><I>False_Northing:</I>
200000.000000</DT>
</DL>
</DD>
</DL>
</DD>
<DT><I>Planar_Coordinate_Information:</I></DT>
<DD>
<DL>
<DT><I>Planar_Coordinate_Encoding_Method:</I>
coordinate pair</DT>
<DT><I>Coordinate_Representation:</I></DT>
<DD>
<DL>
<DT><I>Abscissa_Resolution:</I>
1.412415625</DT>
<DT><I>Ordinate_Resolution:</I>
1.412415625</DT>
</DL>
</DD>
<DT><I>Planar_Distance_Units:</I>
Meters</DT>
</DL>
</DD>
</DL>
</DD>
<DT><I>Geodetic_Model:</I></DT>
<DD>
<DL>
<DT><I>Horizontal_Datum_Name:</I>
North American Datum of 1983</DT>
<DT><I>Ellipsoid_Name:</I>
GRS1980</DT>
<DT><I>Semi-major_Axis:</I>
6378206.4</DT>
<DT><I>Denominator_of_Flattening_Ratio:</I>
294.98</DT>
</DL>
</DD>
</DL>
</DD>
<DT><I>Vertical_Coordinate_System_Definition:</I></DT>
<DD>
<DL>
<DT><I>Altitude_System_Definition:</I></DT>
<DD>
<DL>
<DT><I>Altitude_Resolution:</I>
1.000000</DT>
<DT><I>Altitude_Encoding_Method:</I>
Explicit elevation coordinate included with horizontal coordinates</DT>
</DL>
</DD>
</DL>
</DD>
</DL>
</DD>
</DL>
<A HREF="#Top">Back to Top</A>
<A name="Entity_and_Attribute_Information"><HR /></A>
<DL>
<DT><I>Entity_and_Attribute_Information:</I></DT>
<DD>
<DL>
<DT><I>Detailed_Description:</I></DT>
<DD>
<DL>
<DT><I>Entity_Type:</I></DT>
<DD>
<DL>
<DT><I>Entity_Type_Label:</I>
Geology Puerto Rico at a scale of 1:100,000</DT>
<DT><I>Entity_Type_Definition:</I></DT>
<DD>FMATN item contains the mnemonic for the map units defined in the 1:100,000 scale geologic map for the main island of Puerto Rico. There are 151 different values that can be found in this ITEM, representing 151 unique map units.

Map unit symbol	        Map unit

NONVOLCANICLASTIC TERRANES

Quaternary:
Qa	Alluvium
Qb	Beach deposits
QTs	Blanket sand deposits
Ql	Landslide deposits
Qs	Swamp deposits
af	Artificial fill

Pliocene through Oligocene:
Tcbga	Almirante Sur Sand Lentil of Cibao Formation
Ta	Aguada Limestone
Tay	Aymamon Limestone
Tcm	Camuy Formation
Tcb	Cibao Formation
Tcbg	Guajataca Member of Cibao Formation
Tgua	Guanajibo Formation
Tjd	Juana Diaz Formation
Tla	Lares Limestone
Tcbmi	Miranda Sand Member of Cibao Formation
Tcbm	Montebello Limestone Member of Cibao Formation
Tmu	Mucarabones Sand
Tpo	Ponce Limestone
Tcbq	Quebrada Arenas Limstone Member of Cibao Formation
Tcbr	Rio Indio Limstone Member of Cibao Fomation
Ts	San Sebastian Formation
Tfb	Fault breccia

Eocene through Cretaceous:
Tco	Corozal Limestone
Kcot	Cotui Limestone
Tc	Cuevas Limstone
Tg	Guayo Formation
Klm	La Muda Formation
Kp	Parguera Limestone
Kpe	Penones Limestone

INTRUSIVE TERRANES

Tertiary through Cretaceous:
TKas	Alkali syenite
TKap	Augite andesite porphyry
TKahp	Augite-hornblende porphyry
TKat 	Augite trachybasalt
Td	Porphyritic dacite
TKda	Amygdaloidal dacite
TKg	Diabasic gabbro
Tga	Gabbro
TKgm	Granodiorite quartz monzonite
TKhda	Hornblende dacite
TKh	Porphyry Hornblende quartz-diorite
Thp	Hornblende quartz diorite porphyry
TKdi	Diorite
TKqd	Quartz diorite-granodiorite
TKk	Quartz keratophyre
Trhp	Rhyodacite porphyry

Cretaceous:
Kdi	Diorite
Kdh	Diorite-hornblende gabbro
Kcag	Granodiorite of the Caguas pluton
Kmc	Granodiorite of Morovis and Ciales stocks
Kpgq	Quartz diorite - plutonic complex of Punta
Guayanes
Kpsg	Granodiorite of the plutonic complex of Punta Guayanes
and the granodiorite of San Lorenzo batholith, undivided
Ksl	Granodiorite-quartz diorite of San Lorenzo batholith
Ku	Granodiorite-quartz diorite of the Utuado batholith
Kib	Intrusive breccia of the Daguao Formation
Kslg	Mixed granodiorite-diorite of the San Lorenzo batholith
Kpgg	Granodiorite of plutonic complex of Punta Guayanes
Kpsq	Quartz diorite of plutonic complex of Punta Guayanes
and of the Granodiorite of San Lorenzo batholith
Kslq	Quartz diorite facies of Granodiorite of San Lorenzo
batholith and diorite-hornblende gabbro
Kpgqm	Quartz monzonite of plutonic complex of Punta
Guayanes
Kpob	Two pyroxene olivine basalt

VOLCANICLASTIC TERRANES

SUBAERIAL:

Kcb	Cambalache Formation
Kpo	Pozas Formation

MARINE:

Tertiary
Tca	Carreras Siltstone
Tj	Jicara Formation
Tjo	Jobos Formation
Tl	Los Puertos Formation
Tm	Monserrate Formation
Tor	Ortiz Formation
Tpa	Palmarejo Formation
Tra	Raspaldo Formation
Tr	Rio Culebrinas Formation
Trd	Rio Descalabrado Formation
Trp	Rio Piedras Siltstone
Ty	Yunes Formation

Tertiary and Cretaceous:
TKa	Anon Formation
TKamo	Anon-Monserrate Formations, undivided
TKay	Anon and Yauco Formations, undivided
TKam	Anon and Maricao Formations, undivided
TKci	Cibuco Formation
TKgu	Guaracanal Formation
TKl	Lago Garzas Formation
TKaym	Anon, Yauco, and Maricao Formations, undivided
TKlam	Lago Garzas, Anon, and Maricao Formations, undivided
TKly	Lago Garzas and Yauco Formations, undivided
TKal	Anon Formations and Lago Garzas, undivided
TKm	Maricao Formation
TKmy	Maricao and Yauco Formations, undivided
TKmly	Maricao, Lago Garzas, and Yauco Formations, undivided
TKn	Naranjito Formation
TKy	Yauco Formation

Cretaceous:
Kac	Achiote Conglomerate
Kal	Alonso Formation
Kba	Barrazas Formation
Kcam	Camarones Sandstone
Kcn	Canovanas Formation
Kca	Cariblanco Formation
Kcan	Cancel Breccia
Kcar	Carraizo Breccia
Kcoa	Coamo Formation
Keo	El Ocho Formation
Kfa	Fajardo Formation
Kfr	Frailes Formation
Kg	Guaynabo Formation
Kh	Hato Puerco Formation
Kja	Jayuya Tuff
Kln	Los Negros Formation
Kma	Magueyes Formation
Kmal	Malo Breccia
Kman	Manicaboa Formation
Kmar	Maravillas Formation
Kmag	Martin Gonzalez Lava
Km	Melones Limestone
Kmo	Monacillo Formation
Kpa	Pajaros Tuff
Kpi	Pitahaya Formation
Kra	Rio Abajo Formation
Krp	Rio de la Plata Sandstone
Kr	Robles Formation
Ks	Sabana Grande Formation
Kta	Tabonuco Formation
Kte	Tetuan Formation
Kt	Torrecilla Breccia
Kto	Tortuga Andesite
Kv	Vista Alegre Formation

ALTERATION TERRANE

TKmv	Metavolcanic rock
TKha	Hydrothermally altered rock

SUBMARINE BASALT AND CHERT TERRANE

Kabcj 	Formations A, B, C, &amp; J
Kav	Avispa Formation
Kap	Avispa and Perchas Formations, undivided
Kbo	Boqueron Basalt
KJc	Cajul Basalt
Kce	Celada Formation
Kcg	Cerro Gordo Lava
Kco	Concepcion Formation
Kctt	Cotorra Tuff
Kd	Daguao Formation
Ke	El Rayo Formation
Kf	Figuera Lava
Kfd	Figuera and Daguao Formations, undivided
Ki	Infierno Formation
Kl	Lajas Formation
Klo	Lomas Formation
Kmam	Mameyes Formation
KJm	Mariquita Chert
Kper	Perchas Formation
Kso	Santa Olaya Lava

ULTRAMAFIC ROCK AND AMPHIBOLITE TERRANE

KJa	Amphibolite
KJas	Amphibolite-Serpentinite
KJs	Serpentinite
KJb	Spillitized Basalt</DD>
<DT><I>Entity_Type_Definition_Source:</I></DT>
<DD>None</DD>
</DL>
</DD>
<DT><I>Attribute:</I></DT>
<DD>
<DL>
<DT><I>Attribute_Label:</I>
FID</DT>
<DIV>
<DT><I>Attribute_Definition:</I></DT>
<PRE ID="original">Internal feature number.</PRE>
<SCRIPT>fix(original)</SCRIPT>
</DIV>
<DIV>
<DT><I>Attribute_Definition_Source:</I></DT>
<PRE ID="original">ESRI</PRE>
<SCRIPT>fix(original)</SCRIPT>
</DIV>
<DT><I>Attribute_Domain_Values:</I></DT>
<DD>
<DL>
<DT><I>Unrepresentable_Domain:</I></DT>
<DD>Sequential unique whole numbers that are automatically generated.</DD>
</DL>
</DD>
</DL>
</DD>
<DT><I>Attribute:</I></DT>
<DD>
<DL>
<DT><I>Attribute_Label:</I>
Shape</DT>
<DIV>
<DT><I>Attribute_Definition:</I></DT>
<PRE ID="original">Feature geometry.</PRE>
<SCRIPT>fix(original)</SCRIPT>
</DIV>
<DIV>
<DT><I>Attribute_Definition_Source:</I></DT>
<PRE ID="original">ESRI</PRE>
<SCRIPT>fix(original)</SCRIPT>
</DIV>
<DT><I>Attribute_Domain_Values:</I></DT>
<DD>
<DL>
<DT><I>Unrepresentable_Domain:</I></DT>
<DD>Coordinates defining the features.</DD>
</DL>
</DD>
</DL>
</DD>
<DT><I>Attribute:</I></DT>
<DD>
<DL>
<DT><I>Attribute_Label:</I>
Area</DT>
<DIV>
<DT><I>Attribute_Definition:</I></DT>
<PRE ID="original">Area in square meters</PRE>
<SCRIPT>fix(original)</SCRIPT>
</DIV>
<DIV>
<DT><I>Attribute_Definition_Source:</I></DT>
<PRE ID="original">defined by the software.</PRE>
<SCRIPT>fix(original)</SCRIPT>
</DIV>
</DL>
</DD>
<DT><I>Attribute:</I></DT>
<DD>
<DL>
<DT><I>Attribute_Label:</I>
FMATN_1</DT>
<DIV>
<DT><I>Attribute_Definition:</I></DT>
<PRE ID="original">FMATN item contains the mnemonic for the map units defined in the 1:100,000 scale geologic map for the main island of Puerto Rico. There are 151 different values that can be found in this ITEM, representing 151 unique map units.</PRE>
<SCRIPT>fix(original)</SCRIPT>
</DIV>
<DIV>
<DT><I>Attribute_Definition_Source:</I></DT>
<PRE ID="original">USGS</PRE>
<SCRIPT>fix(original)</SCRIPT>
</DIV>
</DL>
</DD>
<DT><I>Attribute:</I></DT>
<DD>
<DL>
<DT><I>Attribute_Label:</I>
Unit_Name</DT>
<DIV>
<DT><I>Attribute_Definition:</I></DT>
<PRE ID="original">Name of the geologic unit</PRE>
<SCRIPT>fix(original)</SCRIPT>
</DIV>
<DIV>
<DT><I>Attribute_Definition_Source:</I></DT>
<PRE ID="original">USGS</PRE>
<SCRIPT>fix(original)</SCRIPT>
</DIV>
</DL>
</DD>
<DT><I>Attribute:</I></DT>
<DD>
<DL>
<DT><I>Attribute_Label:</I>
Web</DT>
<DIV>
<DT><I>Attribute_Definition:</I></DT>
<PRE ID="original">Web link to an explanation of the geologic unit, except for codes "af" and "W" that represent artificial fill and surficial water bodies respectively.</PRE>
<SCRIPT>fix(original)</SCRIPT>
</DIV>
<DIV>
<DT><I>Attribute_Definition_Source:</I></DT>
<PRE ID="original">PR Office of Management and Budget, 2012</PRE>
<SCRIPT>fix(original)</SCRIPT>
</DIV>
</DL>
</DD>
</DL>
</DD>
<DT><I>Overview_Description:</I></DT>
<DD>
<DL>
<DIV>
<DT><I>Entity_and_Attribute_Overview:</I></DT>
<PRE ID="original">Items listed below are found in the INFO files associated with the polygon attribute table (EAST.PAT) and the arc attribute tables (EAST.AAT).
The first four items of EAST.PAT (AREA, PERIMETER, EAST#, EAST-ID) are Arc/Info generated and should not be altered.  The last four items (COLR, COLR2, SHADE, PROV) were created using the ARC ADDITEM command and used in attributing and editing the polygons. These ITEMS are to be ignored by the user. Their values are no longer current and/or relevent.
The item FMATN is the only attribute to be considered by the user when using EAST.PAT. This attribute contains the mnemonic for the geologic map units used in the geologic map. FMATN is used as the link to the lookup tables for color of polygons (prcolor.lut), patterns of polygons (prshade.lut) and geologic terranes (prov.lut). The values that can be found in the FMATN item are listed under the ENTITY_TYPE_DEFINITION of the ENTITY_TYPE of the DETAILED_DESCRIPTION of the ENTITY_AND_ATTRIBUTE_INFORMATION section of the metadata.

The first seven items of the EAST.AAT (FNODE#, TNODE#, LPOLY#, RPOLY#, LENGTH, EAST#, EAST-ID) are Arc/Info generated and should not be altered. The last item, NOPLOT, has a value of either '0' or '1'. Arcs with a value of NOPLOT = '1' are located on the east and/or west sides of coverages that abut another coverage. When these arcs are not plotted, the join between adjacent coverages becomes transparent when plotting more than one coverage.

&gt;
&gt;EAST.PAT:
&gt;
&gt;COLUMN   ITEM NAME        WIDTH OUTPUT  TYPE N.DEC  ALTERNATE NAME
&gt;    1  AREA                   4    12     F      3
&gt;    5  PERIMETER              4    12     F      3
&gt;    9  EAST#                  4     5     B      -
&gt;   13  EAST-ID                4     5     B      -
&gt;   17  FMATN                  5     5     C      -
&gt;   22  COLR                   4     4     F      0
&gt;   26  COLR2                  4     4     F      0
&gt;   30  SHADE                  4     4     F      0
&gt;   34  PROV                   4     4     F      0
&gt;
&gt;
&gt;EAST.AAT:
&gt;
&gt;COLUMN   ITEM NAME        WIDTH OUTPUT  TYPE N.DEC  ALTERNATE NAME
&gt;    1  FNODE#                 4     5     B      -
&gt;    5  TNODE#                 4     5     B      -
&gt;    9  LPOLY#                 4     5     B      -
&gt;   13  RPOLY#                 4     5     B      -
&gt;   17  LENGTH                 4    12     F      3
&gt;   21  EAST#                  4     5     B      -
&gt;   25  EAST-ID                4     5     B      -
&gt;   29  NOPLOT                 4     4     F      0
&gt;
&gt;</PRE>
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</DIV>
<DIV>
<DT><I>Entity_and_Attribute_Detail_Citation:</I></DT>
<PRE ID="original">none</PRE>
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</DIV>
</DL>
</DD>
</DL>
</DD>
</DL>
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<A NAME="33485440">
<HR />
</A>
<DL>
<DT><I>Distribution_Information:</I>
</DT>
<DD>
<DL>
<DT><I>Distributor:</I></DT>
<DD>
<DL>
<DT><I>Contact_Information:</I></DT>
<DD>
<DL>
<DT><I>Contact_Organization_Primary:</I></DT>
<DD>
<DL>
<DT><I>Contact_Organization:</I>
U.S Geological Survey Information Services</DT>
</DL>
</DD>
<DT><I>Contact_Address:</I></DT>
<DD>
<DL>
<DT><I>Address_Type:</I>
mailing address</DT>
<DIV>
<DT><I>Address:</I></DT>
<PRE ID="original">Box 25286, Denver Federal Center</PRE>
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</DIV>
<DT><I>City:</I>
Denver</DT>
<DT><I>State_or_Province:</I>
Colorado</DT>
<DT><I>Postal_Code:</I>
80225-0286</DT>
<DT><I>Country:</I>
United States</DT>
</DL>
</DD>
<DT><I>Contact_Voice_Telephone:</I>
1-800-USA-MAPS</DT>
<DT><I>Contact_Electronic_Mail_Address:</I>
http://mapping.usgs.gov/esic/esic.html</DT>
</DL>
</DD>
</DL>
</DD>
<DT><I>Resource_Description:</I>
Downloadable Data</DT>
<DIV>
<DT><I>Distribution_Liability:</I></DT>
<PRE ID="original">This Compact Disc-Read Only Memory (CD-ROM) publication was prepared by
an agency of the United States Government. Neither the United States
Government nor any agency thereof, nor any of their employees, make any
warranty, expressed or implied, or assumes any legal liability or
responsibility for the accuracy, completeness, or usefulness of any
information, apparatus, product, or process disclosed in this report, or
represents that its use would not infringe privately owned rights.
Reference therein to any specific commercial product, process, or
service by trade name, trademark, manufacturer, or otherwise does not
necessarily constitute or imply its endorsement, recommendation, or
favoring by the United States Government or any agency thereof. Any
views and opinions of authors expressed herein do not necessarily state
or reflect those of the United States Government or any agency thereof.
Although all data and software published on this CD-ROM have been used
by the USGS, no warranty, expressed or implied, is made by the U.S.
Geological Survey as to the accuracy of the data and related materials
and/or the functioning of the software. The act of distribution shall
not constitute any such warranty, and no responsibility is assumed by
the USGS in the use of this data, software, or related materials.
Graphical map depictions on this disc are intended to be used within the
map scale limits applicable to the source data. Although software
enables the user to show images on the disc at various scales, the user
is cautioned to refer to the source documentation for the appropriate
map scale limitations.</PRE>
<SCRIPT>fix(original)</SCRIPT>
</DIV>
<DT><I>Standard_Order_Process:</I></DT>
<DD>
<DL>
<DT><I>Digital_Form:</I></DT>
<DD>
<DL>
<DT><I>Digital_Transfer_Information:</I></DT>
<DD>
<DL>
<DT><I>Transfer_Size:</I>
6.183</DT>
</DL>
</DD>
</DL>
</DD>
</DL>
</DD>
</DL>
</DD>
</DL>
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<A name="Metadata_Reference_Information"><HR /></A>
<DL>
<DT><I>Metadata_Reference_Information:</I></DT>
<DD>
<DL>
<DT><I>Metadata_Date:</I>
19991001</DT>
<DT><I>Metadata_Review_Date:</I>
None Planned</DT>
<DT><I>Metadata_Future_Review_Date:</I>
None Planned</DT>
<DT><I>Metadata_Contact:</I></DT>
<DD>
<DL>
<DT><I>Contact_Information:</I></DT>
<DD>
<DL>
<DT><I>Contact_Organization_Primary:</I></DT>
<DD>
<DL>
<DT><I>Contact_Organization:</I>
U.S. Geological Survey</DT>
<DT><I>Contact_Person:</I>
Bawiec, Walter J.</DT>
</DL>
</DD>
<DT><I>Contact_Position:</I>
Geologist</DT>
<DT><I>Contact_Address:</I></DT>
<DD>
<DL>
<DT><I>Address_Type:</I>
mailing address</DT>
<DIV>
<DT><I>Address:</I></DT>
<PRE ID="original">954 National Center
12201 Sunrise Valley Drive</PRE>
<SCRIPT>fix(original)</SCRIPT>
</DIV>
<DT><I>City:</I>
Reston</DT>
<DT><I>State_or_Province:</I>
Virginia</DT>
<DT><I>Postal_Code:</I>
20192</DT>
<DT><I>Country:</I>
United States</DT>
</DL>
</DD>
<DT><I>Contact_Voice_Telephone:</I>
(703)648-6148</DT>
<DT><I>Contact_Facsimile_Telephone:</I>
(703) 648-6383</DT>
<DT><I>Contact_Electronic_Mail_Address:</I>
wbawiec@usgs.gov</DT>
</DL>
</DD>
</DL>
</DD>
<DT><I>Metadata_Standard_Name:</I>
FGDC Content Standards for Digital Geospatial Metadata</DT>
<DT><I>Metadata_Standard_Version:</I>
FGDC-STD-001-1998</DT>
<DT><I>Metadata_Time_Convention:</I>
local time</DT>
<DT><I>Metadata_Access_Constraints:</I>
none</DT>
<DT><I>Metadata_Use_Constraints:</I></DT>
<DD>none</DD>
<DT><I>Metadata_Extensions:</I></DT>
<DD>
<DL>
<DT><I>Online_Linkage:</I>
<A TARGET="viewer" HREF="http://www.esri.com/metadata/esriprof80.html">
http://www.esri.com/metadata/esriprof80.html</A>
</DT>
<DT><I>Profile_Name:</I>
ESRI Metadata Profile</DT>
</DL>
</DD>
<DT><I>Metadata_Extensions:</I></DT>
<DD>
<DL>
<DT><I>Online_Linkage:</I>
<A TARGET="viewer" HREF="http://www.esri.com/metadata/esriprof80.html">
http://www.esri.com/metadata/esriprof80.html</A>
</DT>
<DT><I>Profile_Name:</I>
ESRI Metadata Profile</DT>
</DL>
</DD>
</DL>
</DD>
</DL>
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</BODY>
</HTML>