The geology of the main island of Puerto Rico is displayed in three separate coverages; West, Central, and East.
There are six map coverages which display faults for the Island of Puerto Rico.
Map Coverages which display normal faults are called FAULTWN, FAULTCN, and FAULTEN, which display west, central, and eastern fault coverages, respectively.
Map Coverages which display thrust faults and concealed faults are called FAULTW, FAULTC, and FAULTE, which display west, central, and eastern fault coverages, respectively.
Purpose:
The geology of the main island of Puerto Rico is displayed in three separate coverages; West, Central, and East.
There are two coverages of faults for each of the three geologic maps; one coverage displaying normal faults, and another coverage displaying thrust faults and concealed faults.
The geologic map is presented as three panels so the user may more easily use these maps and plot them at the 1:100,000 scale. The fault coverages are divided into these same three panels.
Supplemental_Information: The faults in these coverages represent the faults included in the 1:100,000 scale geologic map produced by Richard D. Krushensky and published in USGS Open-File Report 98-38.
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 19991202
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None Planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -66.1283125
East_Bounding_Coordinate: -65.62059326
North_Bounding_Coordinate: 18.41029356
South_Bounding_Coordinate: 17.98195633
Keywords:
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword:
Faults
Normal Faults
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: Puerto Rico
Access_Constraints: None
Use_Constraints:
Anyone who uses these data must cite U.S. Geological Survey.
These data are not to be used at scales greater than 1:100,000.
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Bawiec, Walter J.
Contact_Organization: U.S. Geological Survey
Contact_Position: Geologist
Contact_Address:
Address_Type:
mailing address
Address:
954 National Center
12201 Sunrise Valley Drive
City: Reston
State_or_Province: Virginia
Postal_Code: 20192
Country: United States
Contact_Voice_Telephone: (703)648-6148
Contact_Facsimile_Telephone: (703)648-6383
Contact_Electronic_Mail_Address: wbawiec@usgs.gov
Data_Set_Credit:
The faults represented in these coverages were extracted from the 1:100,000 scale geologic map of Puerto Rico by Richard D. Krushensky, published in USGS Open-File Report 98-38.
Native_Data_Set_Environment:
Windows_NT, 4.0, Intel
ARC/INFO version 7.1.1
Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
The faults in this coverage were extracted from the 1:100,000 scale geologic map by Richard Krushensky. The 1:100,000 scale geologic map was created by compiling 1:20,000 scale quadrangle maps. There was some interpretation involved in compiling the 1:100,000 scale map.
Faults were attributed as normal, thrust, or concealed in these maps. The faults were visually checked to insure they accurately represent what was on the geologic map. Normal faults were assigned a LNTYPE code of 25.
Logical_Consistency_Report:
Chain-node topology present.
Completeness_Report:
Faults were attributed as normal, thrust, or concealed in these maps. The faults were visually checked to insure they accurately represent what was on the geologic map.
Normal faults were assigned a LNTYPE code of 25.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report: 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.
