Identification_Information
Citation_Information Originator: Gregory J. Walsh and Stewart F. Clark, Jr. Publication_Date: 1999 Title: Bedrock Geologic Map of the Windham Quadrangle, New Hampshire Edition: 1.0 Geospatial_Data_Presentation_Format: map Series_Information Series_Name: Open-File Report Issue_Identification: 99-8 Publication_Information Publication_Place: Reston, Virginia Publisher: U.S. Geological Survey Online_Linkage: https://pubs.usgs.gov/openfile/of99-8/ Scale_Denominator: 24,000Description Abstract: Line coverage for geologic lines including isograds, axial traces, cross-section lines, etc.. Includes annotation for geologic names such as plutons and locations for sample sites. The geologic data was mapped during the summer of 1998 at a scale of 1:24,000. The bedrock geology was mapped using standard techniques. Locational information was provided by Rockwell PLGR+96 GPS receivers using the federal precise positioning service. The line and polygon data were compiled on a mylar greenline of the 7.5-minute quadrangle and scanned at 400 dpi on an Anatech Eagle 4080T scanner. The raster files (TIF) were converted to vector files (DXF) using GTX OSR version 2.0 raster-to-vector conversion software. The vector files were imported to Arc/Info version 7.0.4. Point data were collected with GPS and hand held 3COM Palm Pilot III PDA computers. Data from the PDAs were combined in Microsoft Access, and then imported as ASCII text files and (dbf) files into Arc/Info. The Arc/Info coverages were registered and transformed to the New Hampshire State Plane Coordinate system. Purpose: The map was published as part of a study of the fractured bedrock aquifers in the state of New Hampshire. The digital data are intended for use by all government, academic, commercial, or other agencies in need of digital geologic map information. Limitations_of_Data: Not intended for use at scales larger than 1:24,000. Entity_and_Attribute_Overview: Procedures_Used: Revisions: Reviews_Applied_to_Data: The geology dataset was printed and visually reviewed by the map authors and other USGS staff for geologic integrity, completeness, and accuracy of linework. The report received a standard internal peer review as per USGS Open-File Reports. Related_Spatial_and_Tabular_Data_Sets: References_Cited: Notes: Currentness_Reference: Maintenance_and_Update_Frequency: none planned Access_Constraints: 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 or 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 USGS in the use of this data, or related materials. 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. This geologic map is a guide to the bedrock geology at 1:24,000 scale, but it is not a substitute for site specific data. Data_Set_Credit: Completeness_Report: Horizontal_Positional_Accuracy_Report: Vertical_Positional_Accuracy_Report: Cloud_Cover: Abstract Purpose Supplemental_Information Procedures_Used Revisions Reviews_Applied Related_Spatial_and_Tabular_Data_Sets Other_References_Cited Notes Time_Period_of_Content Currentness_Reference Status Progress: completed Maintenance_and_Update_Frequency Spatial_Domain Bounding_Coordinates West_Bounding_Coordinate: -71.37499237 East_Bounding_Coordinate: -71.25076294 North_Bounding_Coordinate: 42.87499237 South_Bounding_Coordinate: 42.75001144
Keywords Theme Theme_Keyword_Thesaurus: None Theme_Keyword: geology, Windham, New Hampshire Place Place_Keyword_Thesaurus: None Place_Keyword: 7.5-minute Windham quadrangle, New Hampshire Stratum Stratum_Keyword_Thesaurus: None Stratum_Keyword: Temporal Temporal_Keyword_Thesaurus: None Temporal_Keyword:
Access_Constraints Use_Constraints
Data_Set_Credit Security_Information Security_Classification_System: None Security_Classification: UNCLASSIFIED Security_Handling_Description: None
Native_Data_Set_Environment: dgux UNIX, ARC/INFO version 7.0.4
Cross_Reference Originator: Gregory J. Walsh and Stewart F. Clark, Jr. Publication_Date: 1999 Publication_Time: Title: Bedrock Geologic Map of the Windham Quadrangle, New Hampshire Edition: 1.0 Geospatial_Data_Presentation_Form: map Series_Information Series_Name: Open-File Report Issue_Identification: 99-8 Publication_Information Publication_Place: Reston, Virginia Publisher: U.S. Geological Survey Other_Citation_Details: Online_Linkage: http://geology.er.usgs.gov/gmapeast/brass/of998.html Larger_Work_Citation:
Data_Quality_Information
Attribute_Accuracy Attribute_Accuracy_Report: See Entity_Attribute_InformationQuantitative_Attribute_Accuracy_Assessment Attribute_Accuracy_Value: See Explanation Attribute_Accuracy_Explanation: Attribute accuracy is described, where present, with each attribute defined in the Entity and Attribute Section.
Logical_Consistency_Report: Chain-node topology present.
Completeness_Report Positional_Accuracy Horizontal_Positional_Accuracy Horizontal_Positional_Accuracy_Report:
Vertical_Positional_Accuracy Vertical_Positional_Accuracy_Report: Lineage: See Supplemental_Information for overview.Process_Steps
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: 0 SDTS_Point_and_Vector_Object_Type: String Point_and_Vector_Object_Count: 34 SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains' Point_and_Vector_Object_Count: 0
Spatial_Reference_Information
Horizontal_Coordinate_System_DefinitionGeographic Latitude_Resolution: Longitude_Resolution: Geographic_Coordinate_Units: Decimal Degrees Geodetic Model Horizontal_Datum_Name: North American Datum of 1927 Ellipsoid_Name: Clarke 1866 Semi-major_Axis: 6,378,206.4 Denominator_of_Flattening: 294.98
Entity_and_Attribute_Information
Detailed_Description Entity_Type Entity_Type_Label: LINES.AAT Entity_Type_Definition: arc attribute table for geologic lines Entity_Type_Definition_Source: authors Attribute: Attribute_Label: - Attribute_Definition: arc attribute table for geologic lines Attribute_Definition_Source: authors Attribute_Domain_Values Enumerated_Domain Enumerated_Domain_Value: - Enumerated_Domain_Value_Definition Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: FNODE# Attribute_Definition: Internal number of from-node Attribute_Definition_Source: Computed Attribute_Domain_Values Enumerated_Domain Enumerated_Domain_Value: Sequential unique positive integer Enumerated_Domain_Value_Definition Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: TNODE# Attribute_Definition: Internal number of to-node Attribute_Definition_Source: Computed Attribute_Domain_Values Enumerated_Domain Enumerated_Domain_Value: Sequential unique positive integer Enumerated_Domain_Value_Definition Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: LPOLY# Attribute_Definition: Internal number of poly to left of arc Attribute_Definition_Source: Computed Attribute_Domain_Values Enumerated_Domain Enumerated_Domain_Value: Sequential unique positive integer Enumerated_Domain_Value_Definition Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: RPOLY# Attribute_Definition: Internal number of poly to right of arc Attribute_Definition_Source: Computed Attribute_Domain_Values Enumerated_Domain Enumerated_Domain_Value: Sequential unique positive integer Enumerated_Domain_Value_Definition Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: LENGTH Attribute_Definition: Length of arc in coverage units Attribute_Definition_Source: Computed Attribute_Domain_Values Enumerated_Domain Enumerated_Domain_Value: Positive real numbers Enumerated_Domain_Value_Definition Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: LINES# Attribute_Definition: Internal feature number Attribute_Definition_Source: Computed Attribute_Domain_Values Enumerated_Domain Enumerated_Domain_Value: Sequential unique positive integer Enumerated_Domain_Value_Definition Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: LINES-ID Attribute_Definition: User-assigned feature number Attribute_Definition_Source: User-defined Attribute_Domain_Values Enumerated_Domain Enumerated_Domain_Value: Integer Enumerated_Domain_Value_Definition Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: TYPE Attribute_Definition: type of geologic line such as axial traces, isograds, cross-sections, etc. Attribute_Definition_Source: Attribute_Domain_Values Enumerated_Domain Enumerated_Domain_Value: F1, F2, gt_isograd, or left blank Enumerated_Domain_Value_Definition Enumerated_Domain_Value_Definition_Source:Overview_Description Entity_and_Attribute_Overview Entity_and_Attribute_Detail_Citation: Not Available
Distribution_Information
Metadata_Reference_Section
Metadata_Date: 19990525 Metadata_Contact: gwalsh Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata Metadata_Standard_Version: 19940608 Metadata_Time_Convention: Local Time Metadata_Security_Information: Metadata_Security_Classification_System: None Metadata_Security_Classification: UNCLASSIFIED Metadata_Security_Handling_Description: None
This page is https://pubs.usgs.gov/openfile/of99-8/lines.html
Maintained by: Gregory J. Walsh, gwalsh@usgs.gov
Last modified: 99-05-25.11:14:56.Tue