Identification_Information: Citation: Citation_Information: Originator: Duval, Joseph S. Originator: Webring, Michael W. Originator: Hildenbrand, Thomas G. Originator: Pierce, Herbert A. Originator: Mars, John Carlisle Originator: Daniels, David L. Publication_Date: 2002 Title: Aerial magnetic, electromagnetic, and gamma-ray survey, Berrien county, Michigan Geospatial_Data_Presentation_Form: map, raster digital data, profile Series_Information: Series_Name: U.S. Geological Survey Open-File Report Issue_Identification: 02-117 Publication_Information: Publication_Place: Reston, Virginia Publisher: U.S. Geological Survey Online_Linkage: http://pubs.usgs.gov/of/2002/of02-117/ Description: Abstract: This publication presents maps and related databases of aerial survey data in Berrien County, Michigan. The original data were collected by Fugro Airborne Surveys Corporation for the U.S. Geological Survey on October 22-25, 2000. The U.S. Geological Survey processed these data to convert gamma-ray count rate data to concentration values for potassium, uranium, and thorium. The magnetic and electromagnetic data were processed to remove noise associated with power lines and other man-made objects. The processed data were used to calculate grids with 50 m grid cells. The grids were used to produce maps that can be viewed with a free viewer that is provided with the data. In addition to images of the data, the maps include other information such as roads, and streams. The flightline data are included in a database that can be examined using the viewing software and the user can plot profiles and can export the data in several formats if desired. The data and viewing software are installed via installation programs provided on a CD-ROM. The data and software require about 650 Mb of space on a hard disk. Purpose: Mapping aquifers in glacial terranes. Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2002 Currentness_Reference: publication date Status: Progress: Complete Maintenance_and_Update_Frequency: As needed Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -86.6 East_Bounding_Coordinate: -86.25 North_Bounding_Coordinate: 42.1 South_Bounding_Coordinate: 41.8 Keywords: Theme: Theme_Keyword_Thesaurus: General glossary for mineral resources spatial data Theme_Keyword: delimited text Theme_Keyword: Geosoft grid format Theme_Keyword: GeoTIFF Theme: Theme_Keyword_Thesaurus: USGS Thesaurus Theme_Keyword: aeromagnetic surveying Theme_Keyword: aeroradiometric surveying Theme_Keyword: electromagnetic surveying Theme_Keyword: geophysics Theme_Keyword: geospatial datasets Theme_Keyword: magnetic field (earth) Theme_Keyword: multispectral imaging Theme_Keyword: resistivity Theme_Keyword: rocks and deposits Place: Place_Keyword_Thesaurus: Augmented FIPS 10-4 and FIPS 6-4 Place_Keyword: f26021 = Berrien Access_Constraints: None Use_Constraints: None Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Herbert A Pierce Contact_Organization: USGS ER NE GD Contact_Position: Geophysicist Contact_Address: Address_Type: mailing address Address: 12201 Sunrise Valley Drive$Mail Stop 926A City: Reston State_or_Province: VA Postal_Code: 20192-0002 Country: USA Contact_Voice_Telephone: 703-648-6493 Contact_Facsimile_Telephone: 703-648-6953 Contact_Electronic_Mail_Address: hpierce@usgs.gov Browse_Graphic: Browse_Graphic_File_Name: http://pubs.usgs.gov/of/2002/of02-117/data/BerrienCountyMap8.jpg Browse_Graphic_File_Description: Preliminary surficial geologic map of Berrien county, Michigan, 1710x2806 pixels, 3.5 megabytes Browse_Graphic_File_Type: JPEG Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: The concentration values are estimated to be no better than about plus or minus 30 percent except for areas of very low concentrations. Those areas are suspected to have water at or very near the surface and the measured concentrations do not represent the rocks or soils. The magnetic data were measured using a cesium magnetometer and have an accuracy on the order of 1 nanoTesla or less. The depths and resistivities calculated using the electromagnetic data are interpreted values and cannot be assigned an accuracy. Completeness_Report: This aerial survey covers part of southern Berrien County, Michigan. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: Fugro Airborne Surveys Corporation Publication_Date: 200102 Title: Helicopter-borne DIGHEM(VRES) EM, Magnetic, and Radiometric Geophysical Survey Geospatial_Data_Presentation_Form: document Series_Information: Series_Name: Contractor Report Issue_Identification: 613 Publication_Information: Publication_Place: Mississauga, Ontario, Canada Publisher: Fugro Airborne Surveys Corporation Other_Citation_Details: 1 Report with a CD containing the data Type_of_Source_Media: CD-ROM Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 200102 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Fugro, 613 Source_Contribution: This publication describes the survey data collection and processing procedures. Process_Step: Process_Description: The original survey data were processed to convert gamma-ray count rate data to concentration values and the magnetic and electromagnetic data were processed to eliminate noise caused by power lines and other man-made objects. Source_Used_Citation_Abbreviation: Fugro, 613 Process_Date: 2001 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Joseph S. Duval Contact_Organization: U.S. Geological Survey Contact_Position: Geophysicist Contact_Address: Address_Type: mailing address Address: 12201 Sunrise Valley Drive Mail Stop 954 City: Reston State_or_Province: VA Postal_Code: 20192 Country: USA Contact_Voice_Telephone: (703) 648-6106 Contact_Facsimile_Telephone: (703) 648-6383 Contact_Electronic_Mail_Address: jduval@usgs.gov Contact_Instructions: email preferred Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Raster Raster_Object_Information: Raster_Object_Type: Grid Cell Row_Count: 324 Column_Count: 505 Vertical_Count: 1 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Grid_Coordinate_System: Grid_Coordinate_System_Name: Universal Transverse Mercator Universal_Transverse_Mercator: UTM_Zone_Number: 16 Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.9996 Longitude_of_Central_Meridian: -87 Latitude_of_Projection_Origin: 0.0 False_Easting: 500000 False_Northing: 0.0 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: row and column Coordinate_Representation: Abscissa_Resolution: 50 Ordinate_Resolution: 50 Planar_Distance_Units: meters Geodetic_Model: Horizontal_Datum_Name: NAD27 Ellipsoid_Name: Clark 1866 Semi-major_Axis: 6378206.4 Denominator_of_Flattening_Ratio: 0.082271854 Entity_and_Attribute_Information: Overview_Description: Entity_and_Attribute_Overview: The following list provides the file names and brief descriptions of the databases provided. These databases are located in the data directory as a compressed archive. AreaA.gdb: flightline data for the Berrien County study area NURE.gdb: flightline data for the regional gamma-ray data NUREmag.gdb: flightline data for the regional magnetic data DeculturedMag.gdb: processed magnetic data for the Berrien County study area Also included in the data directory are the ASCII XYZ files, the GRD files, and a georeferenced TIFF file, all compressed. Entity_and_Attribute_Detail_Citation: http://pubs.usgs.gov/of/2002/of02-117/archive/htmldir.zip Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: USGS ESIC-Open-File Report Sales Contact_Address: Address_Type: mailing address Address: Mail Stop 517 U.S. Geological Survey Box 25286, Building 810 Denver Federal Center City: Denver State_or_Province: CO Postal_Code: 80225-0286 Country: USA Contact_Voice_Telephone: (303) 202-4210 Contact_Facsimile_Telephone: (303) 236-4031 Resource_Description: USGS Open-File Report 02-117 Distribution_Liability: This report is preliminary and has not been reviewed for conformity with U.S. Geological Survey editorial standards (or with the North American Stratigraphic Code). Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: Geosoft XYZ archive Format_Information_Content: Electromagnetic and radiometric measurements File_Decompression_Technique: unzip Transfer_Size: 29 megabytes Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://pubs.usgs.gov/of/2002/of02-117/data/ASCII_xyz.zip Digital_Form: Digital_Transfer_Information: Format_Name: Geosoft database (.gdb) format Format_Version_Number: Format_Information_Content: Electromagnetic and radiometric measurements File_Decompression_Technique: unzip Transfer_Size: 98 megabytes Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://pubs.usgs.gov/of/2002/of02-117/data/GDB_files.zip Digital_Form: Digital_Transfer_Information: Format_Name: Geosoft grid (.grd) format Format_Version_Number: Format_Information_Content: Gridded electromagnetic, radiometric, and spectral observations, one earth characteristic per grid File_Decompression_Technique: unzip Transfer_Size: 40 megabytes Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://pubs.usgs.gov/of/2002/of02-117/data/GRD_files.zip Digital_Form: Digital_Transfer_Information: Format_Name: GeoTiff Format_Version_Number: 6 Format_Information_Content: Scanned preliminary surficial geologic map File_Decompression_Technique: unzip Transfer_Size: 8.9 megabytes Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://pubs.usgs.gov/of/2002/of02-117/data/RegGeolTif.zip Fees: none Technical_Prerequisites: Bundled software requires an IBM-compatible PC with a Pentium processor or better with 64 Mbytes of RAM and enough disk space to accomodate the files (about 650 Mb). Metadata_Reference_Information: Metadata_Date: 20090825 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Peter N Schweitzer Contact_Organization: USGS ER GD Contact_Position: Geologist Contact_Address: Address_Type: mailing address Address: 12201 Sunrise Valley Drive City: Reston State_or_Province: VA Postal_Code: 20192-0002 Country: USA Contact_Voice_Telephone: 703-648-6533 Contact_Facsimile_Telephone: 703-648-6252 Contact_Electronic_Mail_Address: pschweitzer@usgs.gov Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998