Identification_Information: Citation: Citation_Information: Originator: Dennis P. Cox Reginald P. Briggs Publication_Date: 1973 Title: Isla de Vieques and Isla de Culebra -- from the Metallogenic Map of Puerto Rico by Cox and Briggs Edition: 1973 Geospatial_Data_Presentation_Form: Map Series_Information: Series_Name: U.S. Geological Survey Miscellaneous Geologic Investigations Issue_Identification: USGS Map I-721 Publication_Information: Publication_Place: Washington, D.C. Publisher: U.S. Geological Survey Online_Linkage: Originator: Publication_Time: 1973 Online_Linkage: Larger_Work_Citation: Citation_Information: Originator: Bawiec, Walter J. Publication_Date: 1999 Title: Geology, Geochemistry, Geophysics, Mineral Occurrences and Mineral Resource Assessment for the Commonwealth of Puerto Rico Geospatial_Data_Presentation_Form: cd-rom Series_Information: Series_Name: U.S. Geological Survey Open-File Report Issue_Identification: USGS OFR 98-38 Publication_Information: Publication_Place: Reston, Virginia Publisher: U.S. Geological Survey Description: Abstract: The maps for the Isla de Vieques and Isla de Culebra are a generalized geologic maps published at 1:240,000 scale in Metallogenic Map of Puerto Rico by Dennis P. Cox and Reginald P. Briggs, 1973, Miscellaneous Geologic Investigations Map I-721. These maps are colored with respect to the twelve generalized geologic terranes used in this study. The purpose of a metallogenic map of Cox and Briggs is to show the distribution of mineral deposits in relation to geologic factors, particularly those factors that have had an important influence on the formation of the deposits. Purpose: Conversion of the generalized geologic map of Isla de Vieques and Isla de Culebra to a digital geologic map was undertaken as part of a study of the mineral resources of the Commonwealth of Puerto Rico. While the geologic map for the main island was developed at a 1:100,000 scale, maps more detailed than 1:240,000 scale could not be found for Isla de Vieques and Isla de Culebra to be used in this study. Supplemental_Information: The digital geologic map of Isla de Vieques and Isla de Culebra is being published as part of a larger study entitled 'Geology, Geochemistry, Geophysics, Mineral Occurrences and Mineral Resource Assessment for the Commonwealth of Puerto Rico'. The digital geologic map of Isla de Mona, from Cox and Briggs, are also included in this study. The geologic map for the island of Puerto Rico was compiled by Richard D. Krushensky from 1:20,000 scale quadrangle maps. Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1973 Currentness_Reference: Publication of the original map in 1973 and digital version in 1999 Status: Progress: Complete Maintenance_and_Update_Frequency: None Planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -65.57941283 East_Bounding_Coordinate: -65.22068343 North_Bounding_Coordinate: 18.45710265 South_Bounding_Coordinate: 18.0802478 Keywords: Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: Geology Place: Place_Keyword_Thesaurus: None Place_Keyword: Isla de Vieques Isla de Culebra Access_Constraints: None Use_Constraints: Anyone who uses these data must cite US Geological Survey. These data are not to be used at scales greater than 1:240,000. Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Bawiec, Walter J. Contact_Organization: US Geological Survey, Geologic Division, Eastern Mineral Resources Team Contact_Position: Geologist Contact_Address: Address_Type: Mailing Address Address: US Geological Survey 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 Native_Data_Set_Environment: Windows_NT, 4.0, Intel ARC/INFO version 7.1.1 Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: The digital map of Isla de Vieques and Isla de Culebra was created by tracing in pencil the outline of the geology and coast line on mylar, and scanning the linework. The original map was published at a scale of 1:240,000 by Cox and Briggs as I-Map 721, Metallogenic Map of Puerto Rico. Logical_Consistency_Report: Polygon and chain-node topology present. Maps do not have formation names in the polygon attribute tables. The only attribute used is the 'prov' attribute used to color the map consistent with the geologic terrane maps used elsewhere on the cd-rom. Completeness_Report: Map units present are defined by Cox and Briggs in USGS I-MAP 721 Metallogenic Map of Puerto Rico. Isla de Vieques and Isla de Culebra do not have map unit names in the polygon attribute tables. The only attribute used is the 'prov' attribute, which is used to color the map consistent with the geologic terrane maps used elsewhere on the cd-rom. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: The users of the digital geologic map of Isla de Vieques and Isla de Culebra should respect the intentions of the compilers of the original map and use it at a scale of 1:240,000 and not at a more detailed scale. At that scale, Isla de Vieques is approximately 5 1/2 inches long. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: Dennis P. Cox Reginald P. Briggs Publication_Date: 1973 Title: Metallogenic Map of Puerto Rico Geospatial_Data_Presentation_Form: Map Series_Information: Series_Name: US Geological Survey Miscellaneous Geologic Investigations Issue_Identification: USGS Map I-721 Publication_Information: Publication_Place: Washington, D.C. Publisher: U.S. Geological Survey Source_Scale_Denominator: 240000 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1973 Source_Currentness_Reference: Publication data Source_Citation_Abbreviation: None Source_Contribution: Printed geologic map and coastline for Isla de Vieques and Isla de Culebra was traced, scanned, and vectorized from Cox and Briggs Map I-721. Process_Step: Process_Description: Isla de Vieques and Isla de Culebra geologic contacts and coastlines were traced onto a piece of mylar, which was scanned, and then vectorized. The vectorized map was registered and projected into a polyconic projection. The vectorized map unit polygons, were labeled and attributed with a province code. Process_Date: 1999 Process_Step: Process_Description: First draft of metadata created by wbawiec using FGDCMETA.AML ver. 1.2 05/14/98 on ARC/INFO data set g:\metadata\fgdcmeta\fgdcmeta12\vieques Process_Date: 19990916 Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Vector Point_and_Vector_Object_Information: SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: Point Point_and_Vector_Object_Count: 75 SDTS_Point_and_Vector_Object_Type: String Point_and_Vector_Object_Count: 320 SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains Point_and_Vector_Object_Count: 76 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Map_Projection: Map_Projection_Name: Polyconic Polyconic: Latitude_of_True_Scale: 18 Longitude_of_Central_Meridian: -67 False_Easting: 0.00000 False_Northing: 0.00000 Latitude_of_Projection_Origin: 18 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 0.0000999999901 Ordinate_Resolution: 0.0000999999901 Planar_Distance_Units: Meters Geodetic_Model: Horizontal_Datum_Name: North American Datum of 1927 Ellipsoid_Name: Clarke 1866 Semi-major_Axis: 6378206.4 Denominator_of_Flattening_Ratio: 294.98 Entity_and_Attribute_Information: Overview_Description: Entity_and_Attribute_Overview: Only one user specified polygon attribute, prov, is used in the vieques.pat. Prov is used to color the island using terrane colors standardized for the rest of the commonwealth. > >VIEQUES.PAT: > >COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC ALTERNATE NAME > 1 AREA 4 12 F 3 > 5 PERIMETER 4 12 F 3 > 9 VIEQUES# 4 5 B - > 13 VIEQUES-ID 4 5 B - > 17 FMATN 5 5 C - > 22 COLR 4 4 F 0 > 26 COLR2 4 4 F 0 > 30 SHADE 4 4 F 0 > 34 PROV 4 4 F 0 > > >VIEQUES.AAT: > >COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC ALTERNATE NAME > 1 FNODE# 4 5 B - > 5 TNODE# 4 5 B - > 9 LPOLY# 4 5 B - > 13 RPOLY# 4 5 B - > 17 LENGTH 4 12 F 3 > 21 VIEQUES# 4 5 B - > 25 VIEQUES-ID 4 5 B - > > Entity_and_Attribute_Detail_Citation: none Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: US Geological Survey Information Services Contact_Position: (distributor title here) Contact_Address: Address_Type: mailing address Address: Box 25286, Denver Fereral Center City: Denver State_or_Province: CO Postal_Code: 80225-0286 Country: United States Contact_Voice_Telephone: 1-888-ASK-USGS Contact_Instructions: (Contact via email) Contact_Electronic_Mail_Address: (distributor email) Distribution_Liability: 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. Metadata_Reference_Information: Metadata_Date: 19990916 Metadata_Review_Date: 19990916 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: US Geological Survey Contact_Person: Bawiec, Walter J. Contact_Position: Geologist Contact_Address: Address_Type: Mailing address Address: US Geological Survey 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 Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Access_Constraints: none Metadata_Use_Constraints: none