Identification_Information: Citation: Citation_Information: Originator: Scott Southworth Originator: David K. Brezinski Originator: Avery Ala Drake, Jr. Originator: William C. Burton Originator: Randall C. Orndorff Originator: Albert J. Froelich Originator: David L. Daniels Originator: James E. Reddy Originator: Danielle Denenny Publication_Date: 2002 Title: Digital Geologic Map and Database of the Frederick 30 X 60 Minute Quadrangle, Maryland, Virginia, and West Virginia Edition: 1.0 Geospatial_Data_Presentation_Form: Vector digital data and map Series_Information: Series_Name: Open-File Report Issue_Identification: 02-437 Publication_Information: Publication_Place: Reston, Virginia Publisher: U.S. Geological Survey Online_Linkage: http://pubs.usgs.gov/of/2002/of02-437 Description: Abstract: The geology of the Frederick 30 by 60 minute quadrangle, Maryland, Virginia, and West Virginia, was mapped on 1:24,000-scale base maps from 1989 to 1994. The geologic data were manually compiled at 1:100,000-scale in 1997 and were digitized and converted to Arc/Info GIS coverages from 1998 to 1999. Purpose: The geologic map and database are intended for application to land use decisions, soil mapping, groundwater availability and quality, aggregate resources, and engineering and environmental studies. For site specific studies, the detailed 1:24,000-scale geologic maps should be consulted. Supplemental_Information: Geologic data are stored in eleven GIS themes: A-A' and B-B' cross sections, bedrock, dikes, faults, lakebeds, thermally metamorphosed rocks, map neat line, sinkholes, structural, and surficial. Base data are stored in five GIS themes: hydrology, land cover, political boundaries, roads, and elevation contours. Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 1997 Ending_Date: 2002 Currentness_Reference: Publication date Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -78.00 East_Bounding_Coordinate: -77.00 North_Bounding_Coordinate: 39.50 South_Bounding_Coordinate: 39.00 Keywords: Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: Geology Theme_Keyword: Geologic Theme_Keyword: Bedrock Theme_Keyword: Surficial Theme_Keyword: Fault Theme_Keyword: Structure Theme_Keyword: Dike Theme_Keyword: Lakebed Theme_Keyword: Sinkhole Theme_Keyword: Map Place: Place_Keyword_Thesaurus: None Place_Keyword: Frederick Place_Keyword: Maryland Place_Keyword: Virginia Place_Keyword: West Virginia Access_Constraints: None Use_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. Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Scott Southworth Contact_Organization: U.S. Geological Survey Contact_Address: Address_Type: Mailing address Address: National Center, MS926A City: Reston State_or_Province: Virginia Postal_Code: 20192 Country: USA Contact_Voice_Telephone: 703-648-6385 Contact_Facsimile_Telephone: 703-648-6953 Contact_Electronic_Mail_Address: ssouthwo@usgs.gov Hours_of_Service: Monday - Friday 9:00 - 5:00 EST Browse_Graphic: Browse_Graphic_File_Name: http://pubs.usgs.gov/of/2002/of02-437/02437p1p.gif Browse_Graphic_File_Description: Reduced-size image showing the general layout of map sheet. 864x640 pixels, 24-bit color. Browse_Graphic_File_Type: GIF Browse_Graphic: Browse_Graphic_File_Name: http://pubs.usgs.gov/of/2002/of02-437/02437p2p.gif Browse_Graphic_File_Description: Reduced-size image showing the general layout of map sheet. 864x640 pixels, 24-bit color. Browse_Graphic_File_Type: GIF Data_Set_Structure: Data_Set_Part: Part_Type: Arc/Info coverages, INFO tables, and their export-interchange file equivalents (files with *.e00 extensions) Part_Name: Geologic map data Part_Description: These coverages and INFO tables provide the scientific content of the mapped data Data_Set_Part: Part_Type: Arc/Info coverage Part_Name: ASECTION Part_Description: Line and polygon data for the A-A' cross section Data_Set_Part: Part_Type: Arc/Info coverage Part_Name: BEDROCK Part_Description: Polygon data layer of bedrock geologic map units Data_Set_Part: Part_Type: Arc/Info coverage Part_Name: BSECTION Part_Description: Line and polygon data for the B-B' cross section Data_Set_Part: Part_Type: Arc/Info coverage Part_Name: FAULT Part_Description: Line data layer of geologic faults Data_Set_Part: Part_Type: Arc/Info coverage Part_Name: LAKEBED Part_Description: Line data layer of lakebed locations Data_Set_Part: Part_Type: Arc/Info coverage Part_Name: LINES Part_Description: Line data layer of geologic cross sections Data_Set_Part: Part_Type: Arc/Info coverage Part_Name: META Part_Description: Polygon data layer of thermally metamorphosed rocks Data_Set_Part: Part_Type: Arc/Info coverage Part_Name: NEAT Part_Description: Polygon data layer of map neatline Data_Set_Part: Part_Type: Arc/Info coverage Part_Name: SINK Part_Description: Point data layer of sinkhole locations Data_Set_Part: Part_Type: Arc/Info coverage Part_Name: STRUCTURE Part_Description: Point data layer of geologic structure Data_Set_Part: Part_Type: Arc/Info coverage Part_Name: SURFICIAL Part_Description: Polygon data layer of surficial geologic map units Data_Set_Part: Part_Type: Arc/Info coverage Part_Name: ZMD_DIKE Part_Description: Line and polygon data layer of Zmd dikes Data_Set_Part: Part_Type: Info table Part_Name: 02437 Part_Description: Geologic database (Info equivalent of Microsoft Access database 02437.mdb) Data_Set_Part: Part_Type: Arc/Info coverages, grid, INFO tables, and their export-interchange file equivalents (files with *.e00 extensions) Part_Name: Base map data Part_Description: These coverages and INFO tables provide the base map to which the geologic information is geographically registered Data_Set_Part: Part_Type: Arc/Info coverage Part_Name: HYDRO Part_Description: Line and polygon data layer of hydrographic features Data_Set_Part: Part_Type: Arc/Info grid Part_Name: NLCD Part_Description: Raster land cover data Data_Set_Part: Part_Type: Arc/Info coverage Part_Name: POLBND Part_Description: Line and polygon data layer of state and county boundaries Data_Set_Part: Part_Type: Arc/Info coverage Part_Name: ROADS Part_Description: Line data layer of major highways Data_Set_Part: Part_Type: Arc/Info coverage Part_Name: TOPO Part_Description: Line data layer of elevation contours Data_Set_Part: Part_Type: Spatial Data Transfer Standard (SDTS) data exchange files Part_Name: Geologic map data Part_Description: These SDTS files provide the scientific content of the mapped data Data_Set_Part: Part_Type: SDTS files Part_Name: ASEC*.* Part_Description: SDTS files for the A-A' cross section Data_Set_Part: Part_Type: SDTS files Part_Name: BEDR*.* Part_Description: SDTS files for the bedrock geologic map units Data_Set_Part: Part_Type: SDTS files Part_Name: BSEC*.* Part_Description: SDTS files for the B-B' cross section Data_Set_Part: Part_Type: SDTS files Part_Name: FAUL*.* Part_Description: SDTS files for the geologic faults Data_Set_Part: Part_Type: SDTS files Part_Name: LAKE*.* Part_Description: SDTS files for the lakebed locations Data_Set_Part: Part_Type: SDTS files Part_Name: LINE*.* Part_Description: SDTS files for the geologic cross sections Data_Set_Part: Part_Type: SDTS files Part_Name: META.* Part_Description: SDTS files for the thermally metamorphosed rocks Data_Set_Part: Part_Type: SDTS files Part_Name: NEAT.* Part_Description: SDTS files for the map neatline Data_Set_Part: Part_Type: SDTS files Part_Name: SINK.* Part_Description: SDTS files for the sinkhole locations Data_Set_Part: Part_Type: SDTS files Part_Name: STRU*.* Part_Description: SDTS files for the geologic structure Data_Set_Part: Part_Type: SDTS files Part_Name: SURF*.* Part_Description: SDTS files for the surficial geologic map units Data_Set_Part: Part_Type: SDTS files Part_Name: DIKE*.* Part_Description: SDTS files for the Zmd dikes Data_Set_Part: Part_Type: Spatial Data Transfer Standard (SDTS) data exchange files Part_Name: Base map data Part_Description: These SDTS files provide the base map to which the geologic information is geographically registered Data_Set_Part: Part_Type: SDTS files Part_Name: HYDR*.* Part_Description: SDTS files for the hydrographic features Data_Set_Part: Part_Type: SDTS files Part_Name: NLCD*.* Part_Description: SDTS files for the land cover data Data_Set_Part: Part_Type: SDTS files Part_Name: POLB*.* Part_Description: SDTS files for the state and county boundaries Data_Set_Part: Part_Type: SDTS files Part_Name: ROAD*.* Part_Description: SDTS files for the major highways Data_Set_Part: Part_Type: SDTS files Part_Name: TOPO*.* Part_Description: SDTS files for the elevation contours Data_Set_Part: Part_Type: Microsoft Access database and its dBASE and ASCII text file equivalents Part_Name: Geologic database Part_Description: This database contains attribute information that can be used as supplements to the GIS layers Data_Set_Part: Part_Type: Microsoft Access database Part_Name: 02437.MDB Part_Description: Database designed by the Eastern Region's Earth Surface Processes Team (EESPT) of the U.S. Geological Survey Data_Quality_Information: Logical_Consistency_Report: Polygon and chain-node topology present Completeness_Report: Version 1.0 - subsequent versions may contain more data and/or a greater diversity of data types. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: U.S. Geological Survey Publication_Date: Unpublished material Title: None Source_Scale_Denominator: 100000 Type_of_Source_Media: Stable-base material Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1997 Source_Currentness_Reference: Publication date Source_Citation_Abbreviation: None Source_Contribution: These geologic data were compiled at 1:100,000-scale from a series of 1:24,000-scale detailed published and unpublished field investigations that range in date from 1989 to 1994. Process_Step: Process_Description: These geologic map data were digitized from hand drafted stable-base scribe sheets used to prepare the Frederick 30 X 60 minute quadrangle. Scribe sheets were scanned, vectorized and then converted to GIS compatible formats. Process_Date: 1998-1999 Source_Information: Source_Citation: Citation_Information: Originator: Multi-resoultion Land Characterization (MRLC) Consortium Publication_Date: 1999 Title: National Land Cover Data Source_Scale_Denominator: 100000 Type_of_Source_Media: Online Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1999 Source_Currentness_Reference: Publication date Source_Citation_Abbreviation: NLCD Source_Contribution: The National Land Cover Data set provides a good general land cover classification product for the Frederick 30 X 60 minute quadrangle. Process_Step: Process_Description: Land cover data sets for the states of Maryland, Virginia, and West Virginia were obtained from http://edc.usgs.gov/geodata. The data were combined into one raster grid using Arc/Info GIS software. Land cover data within the boundary of the Frederick 30 X 60 minute quadrangle were extracted from the larger grid for inclusion in this Open-File Report. The resultant grid was reprojected from the Albers Conical Equal Area projection to the Universal Transverse Mercator System and to the Geographic Reference System. Process_Date: 2002 Source_Information: Source_Citation: Citation_Information: Originator: U.S. Geological Survey Publication_Date: Unknown Title: Digital Line Graphs Source_Scale_Denominator: 100000 Type_of_Source_Media: Online Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: Unknown Source_Currentness_Reference: Publication date Source_Citation_Abbreviation: DLG Source_Contribution: Digital Line Graphs are digital vector representations of cartographic information derived from USGS maps and related sources. Process_Step: Process_Description: Hydrography, hypsography, political boundaries, and roads Digital Line Graph (DLG) layers were obtained from http://edc.usgs.gov/geodata for the Frederick 30 X 60 minute quadrangle. The roads layer was filtered to contain only major highways. The layers were reprojected from the Universal Transverse Mercator System to the Geographic Reference System. Process_Date: 2002 Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Vector Point_and_Vector_Object_Information: SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: Entity point SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Geographic: Latitude_Resolution: 0.001 Longitude_Resolution: 0.001 Geographic_Coordinate_Units: Decimal degrees Geodetic_Model: Horizontal_Datum_Name: North American Datum of 1983 Ellipsoid_Name: Geodetic Reference System 80 Semi-major_Axis: 6378137 Denominator_of_Flattening_Ratio: 298.257 Entity_and_Attribute_Information: Overview_Description: Entity_and_Attribute_Overview: >The following is a brief description of the data layers, tables, and their associated attributes that are used in this report. > >GEOLOGIC DATA: >ASECTION - Line and polygon data for the A-A' cross section > ASECTION.AAT items: > PLOTCODE - Used for plotting > TYPE - Used to identify faults > ASECTION.PAT items: > PLOTCODE - Used for plotting > MAPUNIT - Geologic map unit code > >BEDROCK - Polygon data layer of bedrock geologic map units > BEDROCK.PAT items: > MAPUNIT - Bedrock geologic map unit code > >BSECTION - Line and polygon data for the B-B' cross section > BSECTION.AAT items: > PLOTCODE - Used for plotting > TYPE - Used to identify faults > BSECTION.PAT items: > PLOTCODE - Used for plotting > MAPUNIT - Geologic map unit code > META - Used to identify thermally metamorphosed rocks. Set to 'JTrtm'. > >FAULT - Line data layer of geologic faults > FAULT.AAT items: > TYPE - Type of fault > TYPE Code Description > N Normal > T Thrust > NT Normal reactivated as thrust > OT Overturned thrust > SS Strike-slip > ARO Arrow showing movement along strike-slip fault > U Unclassified > CODE - Identifies fault segments which are overlaid by surficial deposits > (CODE = 2). Used for plotting. > >LAKEBED - Line data layer of lakebed locations > LAKEBED.AAT items: > TYPE - Set to 'Lakebed' > >LINES - Line data layer of geologic cross sections > LINES.AAT items: > XLINE - Identifies cross section, set to "A-A'" or "B-B'" > >META - Polygon data layer of thermally metamorphosed rocks > META.PAT items: > MAPUNIT - Geologic map unit code. Set to 'JTrtm'. > >NEAT - Unattributed line data layer of map neatline > >SINK - Point data layer of sinkhole locations > SINK.PAT items: > MAPUNIT - Set to 'Sinkhole' > >STRUCTURE - Point data layer of geologic structure > STRUCTURE.PAT items: > DIP - Dip value (planar data) or plunge value (linear data) > AZIMUTH - Angle measured from North in right-hand rule (planar data). > TYPE - Type of geologic structure > TYPE Code Description > AGE Sample site for U-Pb isotopic technique for age date > HB Horizontal bed > I1C Inclined first-generation Paleozoic cleavage and (or) schistosity > I2C Inclined second-generation Paleozoic cleavage and (or) schistosity > IB Inclined bed > IF Inclined Middle Proterozoic foliation > MA Minor antiform > MPF Inclined mylonitic and phyllonitic foliations > OB Overturned bed > QM Quarry or mine > RAD Greater than 200 pCi/L of soil gas radon > V1C Vertical first-generation Paleozoic cleavage and (or) schistosity > V2C Vertical second-generation Paleozoic cleavage and (or) schistosity > VB Vertical bed > VF Vertical Middle Proterozoic foliation > SUB_TYPE - Type of quarry mine > SUB_TYPE > Code Description > Au Gold > C Chromite > Cu Copper > D Diabase > F Hematite, limonite, and iron-ore > L Limestone > M Marble > S Building stone > Zn Zinc > SYMBOL_ANG - Standard Cartesian angle measured from East. Used for plotting. > DIPDIR - Direction of dip (planar data) or trend (linear data) measured from North > SYMBOL - Symbol number, used for plotting > >SURFICIAL - Polygon data layer of surficial geologic map units > SURFICIAL.PAT items: > MAPUNIT - Surficial geologic map unit code > >ZMD_DIKE - Line and polygon data layer of Zmd dikes > ZMD_DIKE.AAT items: > TYPE - Set to 'Zmd' > ZMD_DIKE.PAT items: > MAPUNIT - Set to 'Zmd' > >02437 - Geologic database > If you are using Arc/Info Workstation you can access the data in this table using either the > JOINITEM, RELATE, or CURSOR functions and the INFO item MAPUNIT. Use the RELATE function to > access this data from ArcMap. If you are using ArcView, add the table 02437.DBF to the > project and use either the JOIN or LINK functions and the item MAPUNIT to access the data. > Alternatively, the database 02437.MDB can be viewed using Microsoft Access. > 02437 items: > MAPUNIT - Geologic map unit code > SURF_BED > SURFTYPE > LITHPRI > LITHSEC > LITHTER > FORM > MEMBER > GROUP > SUPERGROUP > ROCKCLASS > AGE > GEOCHR > GEOCHRTECH > GEOCHRREF > FOSSIL > FOSSILTYPE > FOSSILREF > CORRELEXTR > ORIGIN > RES > RESREF > COLOR > MINPRI > MINSEC > MINOTH > CLASTPRI > CLASTSEC > CEMENT > THICKAPPRX > THICKRANGE > BEDTHIN > BEDMEDIUM > BEDTHICK > CONTUP > CONTLOW > FOLPRI > FOLSEC > FOLTER > CMPM > RMPM > RMRM > DEFORMAGE > DEFORMTECH > DEFORMREF > COMMENTS > >BASE DATA: >HYDRO - Line and polygon data layer of hydrographic features > HYDRO.AAT items: > ENTITY_LABEL - DLG code > ENTITY_DEF - Short definition of the DLG code contained in ENTITY_LABEL > BANK - Defines the right (R) and left (L) limits of a double-line feature when facing downstream > INTERMITTENT - Defines any hydrographic feature which flows intermittently > COINCIDENT - Identifies lines shared by two or more hydrographic features > HYDRO.PAT items: > ENTITY_LABEL - DLG code > ENTITY_DEF - Short definition of the DLG code contained in ENTITY_LABEL > ELEVATION - Water surface elevation, whole meters > >NLCD - Raster land cover data set > NLCD.VAT items: > VALUE - Land cover code > VALUE Code Description > 11 Open water > 21 Low intensity residential > 22 High intensity residential > 23 Commercial/Industrial/Transportation > 32 Quarries/Strip mines/Gravel pits > 33 Transitional > 41 Deciduous forest > 42 Evergreen forest > 43 Mixed forest > 81 Pasture/Hay > 82 Row crops > 85 Urban/Recreational grasses > 91 Woody wetlands > 92 Emergent herbaceous wetlands > COUNT - Total number of cells belonging to each value code > SYMBOL - Symbol number, used for plotting > >POLBND - Line and polygon data layer of state and county boundaries: > POLBND.AAT items: > POLBND-ID > TYPE - State or county boundary > POLBND.PAT items: > STATE_NAME - State in which county resides > CNTY_NAME - County name > STATE_FIPS - State FIPS code (character field) > CNTY_FIPS - County FIPS code (character field) > FIPS - FIPS code for state/county (character field) > MAJOR# - DLG code > MINOR# - DLG code > Major DLG Minor DLG > Code Code Description > 91 --- State FIPS code (integer field) > 92 --- County FIPS code (integer field) > >ROADS - Line data layer of major highways > ROADS.AAT items: > MAJOR# - DLG code > MINOR# - DLG code > Major DLG Minor DLG > Code Code Description > 170 201 Primary route, class 1, undivided > 170 203 Primary route, class 1, divided > 170 205 Secondary route, class 2, undivided > 170 207 Secondary route, class 2, divided > 170 209 Road or street, class 3 > 170 402 Cloverleaf or interchange > 172 --- Interstate route number > 173 --- U.S. route number > 174 --- State route number > >TOPO - Line data layer of elevation contours > TOPO.AAT items: > MAJOR# - DLG code > MINOR# - DLG code > Major DLG Minor DLG > Code Code Description > 20 20O Contour (index or intermediate) > 20 201 Carrying contour > 20 204 Amended contour > 20 208 Closure line > 20 611 Depression > 24 --- Elevation in whole meters > TYPE - Type of contour: index (Index) or intermediate (Inter), > used for plotting Entity_and_Attribute_Detail_Citation: http://pubs.usgs.gov/of/2002/of02-437/of02437.pdf Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Position: Scott Southworth Contact_Address: Address_Type: Mailing address Address: National Center, MS926A City: Reston State_or_Province: Virginia Postal_Code: 20192 Country: USA Contact_Voice_Telephone: 703-648-6385 Contact_Facsimile_Telephone: 703-648-6953 Contact_Electronic_Mail_Address: ssouthwo@usgs.gov Hours_of_Service: Monday - Friday 9:00 - 5:00 EST Resource_Description: USGS Open-File Report 02-437 Distribution_Liability: These data were 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 assume any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product or process disclosed in this report, and 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 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-interchange Format_Version_Number: 8.1.2 Format_Information_Content: Bedrock and surficial geologic map units, geologic cross sections, faults, structural geology, political boundaries, elevation contours, hydrology and major highways. File_Decompression_Technique: WinZip, gzip and tar Transfer_Size: 99.9 megabytes Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://pubs.usgs.gov/of/2002/of02-437/ Fees: None Metadata_Reference_Information: Metadata_Date: 20030813 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Position: Scott Southworth Contact_Address: Address_Type: Mailing address Address: National Center, MS926A City: Reston State_or_Province: Virginia Postal_Code: 20192 Country: USA Contact_Voice_Telephone: 703-648-6385 Contact_Facsimile_Telephone: 703-648-6953 Contact_Electronic_Mail_Address: ssouthwo@usgs.gov Hours_of_Service: Monday - Friday 9:00 - 5:00 EST Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998