Identification_Information: Citation: Citation_Information: Originator: Gregory J. Walsh Publication_Date: 2014 Title: Bedrock geologic map of the Uxbridge quadrangle, Worcester County, Massachusetts, and Providence County, Rhode Island Edition: 1.0 Geospatial_Data_Presentation_Form: Map Series_Information: Series_Name: Scientific Investigations Map Issue_Identification: 3295 Publication_Information: Publication_Place: Reston, Virginia Publisher: U.S. Geological Survey Online_Linkage: http://dx.doi.org/10.3133/sim3295 Other_Citation_Details: Walsh, G.J., 2014, Bedrock geologic map of the Uxbridge quadrangle, Worcester County, Massachusetts, and Providence County, Rhode Island: U.S. Geological Survey Scientific Investigations Map 3295, 1 sheet, scale 1:24,000, 36-p. pamphlet, http://dx.doi.org/10.3133/sim3295. Description: Abstract: The bedrock geology of the 7.5-minute Uxbridge, MA-RI quadrangle consists of deformed Neoproterozoic to early Paleozoic crystalline metamorphic and intrusive igneous rocks of the Avalon terrane. The database includes contacts of bedrock geologic units, faults, outcrops, structural geologic information, geochemistry data, and photos. Purpose: The bedrock geology was mapped to study the tectonic history of the area and to provide a framework for ongoing hydrogeologic characterization of the fractured bedrock. The digital data are intended for use by all government, academic, commercial, or other agencies in need of digital geologic map information. Supplemental_Information: Locational data were collected in latitude and longitude (degrees minutes seconds) in WGS84 datum. These data were reprojected to the state plane coordinate system currently in use in Massachusetts. The database is accompanied by a large format color map, an explanatory pamphlet, and a readme.txt file. Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 2007 Ending_Date: 2014 Currentness_Reference: publication date Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -71.75 East_Bounding_Coordinate: -71.625 North_Bounding_Coordinate: 42.125 South_Bounding_Coordinate: 42.0 Keywords: Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: geology Theme_Keyword: geologic Theme_Keyword: bedrock Place: Place_Keyword_Thesaurus: None Place_Keyword: Massachusetts Place_Keyword: Worcester County Place_Keyword: Providence County Place_Keyword: Rhode Island Place_Keyword: Sutton Place_Keyword: Douglas Place_Keyword: Uxbridge Place_Keyword: Northbridge Place_Keyword: Burrillville Access_Constraints: Although all data released in this report have been used by the USGS, no warranty, expressed or implied, is made by the USGS as to the accuracy of the data and related materials and (or) the functioning of the software. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Use_Constraints: none Point_of_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: Gregory J. Walsh Contact_Position: geologist Contact_Address: Address_Type: mailing address Address: P.O. Box 628 City: Montpelier State_or_Province: Vermont Postal_Code: 05601 Country: USA Contact_Voice_Telephone: 802-828-4528 Contact_Facsimile_Telephone: 802-828-4465 Contact_Electronic_Mail_Address: gwalsh@usgs.gov Native_Data_Set_Environment: Arc/Info coverage format Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: All attributes digitized during the creation process were verified by displaying the lines and points in the database with respect to the USGS 7.5-minute topographic map, but no formal tests were performed. Logical_Consistency_Report: These data are believed to be logically consistent, though no tests were performed. Geometry is topologically clean. Completeness_Report: The geologic contacts were delineated on USGS 7.5-minute topographic maps based on observations at the outcrops shown in the database. Not all outcrops within the area were identified or visited during mapping. The geologic contacts might change if additional outcrops are discovered or exposed as the natural land changes or as the result of development. The features in the database are not based on legal parcels or definitions. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: The data were created on a USGS 7.5 minute topographic map at 1:24,000 scale. Therefore, the horizontal accuracy is assumed to be within National Map Accuracy Standards, with a horizontal accuracy of 45.6 feet at the 95% confidence level. Locational information in the field was provided by a Garmin eTrex Venture GPS receiver or similar. Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: The data were delineated on a USGS 7.5 minute topographic map at 1:24,000 scale. Therefore, the vertical accuracy is assumed to be within National Map Accuracy Standards, with a vertical accuracy of 11.9 feet at the 95% confidence level. Lineage: Process_Step: Process_Description: Geology mapped at a scale of 1:24,000. Locational information was provided by GPS receiver. The line and polygon data were first compiled in Adobe Illustrator over registered scans of field sheets using the topographic base. Film positive separates of the published topographic base map were scanned at 400 dpi and registered in ArcMap. Illustrator files were converted to DXF vector files and imported to Arc/Info version 9.3. Point data were collected with GPS and attribute data were entered into Microsoft Excel. Data from Excel were converted to tab-delimited TXT files, joined with GPS coordinate data in ArcMap, saved as a shapefile, and exported into an Arc/Info coverage where point symbols were created and plotted. Line and polygon data were edited in Arc/Info and converted to shapefiles. Shapefiles were plotted in ArcMap and exported to Illustrator. Final cartography was done in Adobe Illustrator CS4. Process_Date: 2010 Source_Produced_Citation_Abbreviation: Walsh (2014) Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: Gregory J. Walsh Contact_position: Geologist Contact_Address: Address_Type: mailing and physical address Address: P.O. Box 628 City: Montpelier State_or_Province: Vermont Postal_Code: 05601 Country: USA Contact_Voice_Telephone: 802-828-4528 Contact_Facsimile_Telephone: 802-828-4465 Contact_Electronic_Mail_Address: gwalsh@usgs.gov Hours_of_Service: 0900 to 1700 eastern standard time Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Vector Point_and_Vector_Object_Information: SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: Complete chain Point_and_Vector_Object_Count: 122 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Grid_Coordinate_System: Grid_Coordinate_System_Name: State Plane Coordinate System 1983 State_Plane_Coordinate_System: SPCS_Zone_Identifier: 2001 Lambert_Conformal_Conic: Standard_Parallel: 41.716667 Standard_Parallel: 42.683333 Longitude_of_Central_Meridian: -71.500000 Latitude_of_Projection_Origin: 41.000000 False_Easting: 200000.000000 False_Northing: 750000.000000 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 0.000100 Ordinate_Resolution: 0.000100 Planar_Distance_Units: meters Geodetic_Model: Horizontal_Datum_Name: North American Datum of 1983 Ellipsoid_Name: Geodetic Reference System 80 Semi-major_Axis: 6378137.000000 Denominator_of_Flattening_Ratio: 298.257222 Entity_and_Attribute_Information: Overview_Description: Entity_and_Attribute_Overview: The geologic data layers in the GIS database of this report include, 1) CONTX - Polygon and arc data layers of bedrock geologic map units, including a lithology attribute table, 2) EXPOSURE - Unattributed polygon data layer of bedrock outcrops, 3) FOLDS - Arc data layer of axial traces of major folds, 4) STRUCTURE - Point data layer of ductile and brittle structural geology, 5) PTSCARTO - Point data layers of ductile and brittle structural geology used for cartography; a subset of STRUCTURE, 6) GEOCHEM – Point data for whole-rock geochemistry, and 7) PHOTOS - Point data layers for photographs. Entity_and_Attribute_Detail_Citation: http://dx.doi.org/10.3133/sim3295/downloads/readme.txt Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey - Information Services Contact_Address: Address_Type: mailing address Address: Box 25286, Denver Federal Center City: Denver State_or_Province: Colorado Postal_Code: 80225 Country: USA Contact_Voice_Telephone: 1-888-ASK-USGS Contact_Electronic_Mail_Address: ask@usgs.gov Hours_of_Service: 0900 to 1700 mountain standard time Resource_Description: USGS Scientific Investigations Map 3295 Distribution_Liability: This digital 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, makes 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. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the U.S. Geological Survey in the use of these data or related materials. Reference herein to any specific commercial product, process, or related 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. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: Arc/Info export Format_Version_Number: 10.0 Format_Information_Content: Geologic units and structural features File_Decompression_Technique: unzip Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://dx.doi.org/10.3133/sim3295 Digital_Form: Digital_Transfer_Information: Format_Name: Shapefile Format_Version_Number: 1.0 Format_Information_Content: Geologic units and structural features File_Decompression_Technique: unzip Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://dx.doi.org/10.3133/sim3295 Digital_Form: Digital_Transfer_Information: Format_Name: Google earth Format_Version_Number: 1.0 Format_Information_Content: Geologic units and structural features File_Decompression_Technique: unzip Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://dx.doi.org/10.3133/sim3295 Fees: none Metadata_Reference_Information: Metadata_Date: 20140905 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: USGS Contact_Person: Gregory J. Walsh Contact_Position: Research Geologist Contact_Address: Address_Type: mailing address Address: P.O. Box 628 City: Montpelier State_or_Province: VT Postal_Code: 05601 Country: USA Contact_Voice_Telephone: 802-828-4528 Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998