Identification_Information: Citation: Citation_Information: Originator: Sander Geophysics Publication_Date: 2006 Title: sander_mag Geospatial_Data_Presentation_Form: vector digital data Online_Linkage: Larger_Work_Citation: Citation_Information: Originator: J. Tilden Originator: D. Ponce Originator: J. Glen Originator: B. Chuchel Originator: K. Tushman Originator: A. Duvall Publication_Date: 2005 Title: Gravity, magnetic, and physical property data in the Smoke Creek Desert area, northwest Nevada Geospatial_Data_Presentation_Form: vector digital data Series_Information: Series_Name: Open-File Report Issue_Identification: 2006-1197 Publication_Information: Publication_Place: Menlo Park, CA Publisher: U.S. Geological Survey Description: Abstract: High resolution aeromagnetic data collected in the Smoke Creek Desert area, northwest Nevada. Purpose: Aeromagnetic data were collected within the basin to identify near-surface magnetic features. Supplemental_Information: High resolution aeromagnetic data were collected by Sander Geophysics using Geometrics G-822A Cesium Magnetometers for both the air and ground measurements. For the survey area, the Total Field was 51662 nT, the Inclination was 64.3, and the declination was 15.5, according to the IGRF 2000 model. Lines were flown in an east-west direction and were spaced 200m and 400m apart. North-south tie lines were also flown. The survey was flown at 150m above topography. Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2006 Currentness_Reference: publication date Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -120.001938 East_Bounding_Coordinate: -119.261841 North_Bounding_Coordinate: 40.895531 South_Bounding_Coordinate: 40.270142 Keywords: Theme: Theme_Keyword: magnetics Theme_Keyword: magnetic anomaly Place: Place_Keyword: Smoke Creek Desert Place_Keyword: Fox Range Place_Keyword: Squaw Creek Valley Place_Keyword: Gerlach Place_Keyword: Skedaddle Mtns Access_Constraints: none Use_Constraints: Uses of this digital data should not violate the spatial or attribute resolution of the data. Although the digital form of the data stores location and attribute values to several decimals of precision, the data is subject to the accuracy and precision inherent in the data due to data collection and processing limitations. Where this data is used in combination with other data, the precision and accuracy of the resulting dataset is limited by the precision and accuracy of the input datasets. Acknowledgement of the U.S. Geological Survey is appreciated for products derived from this data. Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Janet Tilden Contact_Organization: U.S. Geological Survey Contact_Position: geophysicist Contact_Address: Address_Type: physical address Address: 345 Middlefield Rd. City: Menlo Park State_or_Province: CA Postal_Code: 94025 Country: USA Contact_Voice_Telephone: 650-329-5307 Contact_Electronic_Mail_Address: jtilden@usgs.gov Native_Data_Set_Environment: Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.0.0.535 Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: magnetic field values are reported to 0.01 nT Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: GPS accuracy should be within 1 meter Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: GPS accuracy should be within 1 meter Lineage: Source_Information: Source_Citation: Citation_Information: Originator: Sander Geophysics Limited Publication_Date: 2004 Title: Project Report Aeromagnetic Survey: USGS Requisition No. 04CRSA0601, Smoke Creek Area Nevada, 2004 Geospatial_Data_Presentation_Form: vector digital data Type_of_Source_Media: disc Source_Citation_Abbreviation: Sander Geophysics, Project Report Aeromagentic Survey, Smoke Creek Desert, 2004 Process_Step: Process_Description: Refer to Project Report by Sander Geophysics Process_Date: 2004 Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Point Point_and_Vector_Object_Information: SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: Entity point Point_and_Vector_Object_Count: 611040 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Geographic: Latitude_Resolution: 0.00001 Longitude_Resolution: 0.00001 Geographic_Coordinate_Units: Decimal degrees Geodetic_Model: Horizontal_Datum_Name: North American Datum of 1983 Ellipsoid_Name: Geodetic Reference System 80 Semi-major_Axis: 6378206.4 Denominator_of_Flattening_Ratio: 298.257 Vertical_Coordinate_System_Definition: Altitude_System_Definition: Altitude_Datum_Name: North American Vertical Datum of 1988 Altitude_Distance_Units: meters Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: sanders_mag Attribute: Attribute_Label: Line Attribute_Definition: line number Attribute_Definition_Source: Sander Geophysics Attribute: Attribute_Label: LONG_W84 Attribute_Definition: longitude coordinate Attribute_Definition_Source: Sander Geophysics Attribute_Value_Accuracy_Information: Attribute_Value_Accuracy: 0.2 m Attribute: Attribute_Label: LAT_W84 Attribute_Definition: latitude coordinate Attribute_Definition_Source: Sander Geophysics Attribute_Value_Accuracy_Information: Attribute_Value_Accuracy: 0.2 m Attribute: Attribute_Label: UTMX Attribute_Definition: x coordinate Attribute_Definition_Source: Sander Geophysics Attribute_Value_Accuracy_Information: Attribute_Value_Accuracy: 0.2 m Attribute: Attribute_Label: UTMY Attribute_Definition: y coordinate Attribute_Definition_Source: Sander Geophysics Attribute_Value_Accuracy_Information: Attribute_Value_Accuracy: 0.2 m Attribute: Attribute_Label: UTMX_N27 Attribute_Definition: x coordinate Attribute_Definition_Source: Sander Geophysics Attribute_Value_Accuracy_Information: Attribute_Value_Accuracy: 0.2 m Attribute: Attribute_Label: UTMY_N27 Attribute_Definition: y coordinate Attribute_Definition_Source: Sander Geophysics Attribute_Value_Accuracy_Information: Attribute_Value_Accuracy: 0.2 m Attribute: Attribute_Label: FID_1 Attribute_Definition: fiducial time - seconds after midnight UTC Attribute_Definition_Source: Sander Geophysics Attribute: Attribute_Label: DATE Attribute_Definition: year, month, day Attribute_Definition_Source: Sander Geophysics Attribute: Attribute_Label: TIME Attribute_Definition: hour, minutes, seconds Attribute_Definition_Source: Sander Geophysics Attribute: Attribute_Label: ALT_R Attribute_Definition: radar altimeter Attribute_Definition_Source: Sander Geophysics Attribute_Value_Accuracy_Information: Attribute_Value_Accuracy: 1.5 m Attribute: Attribute_Label: ALT_B Attribute_Definition: barometric altimeter Attribute_Definition_Source: Sander Geophysics Attribute_Value_Accuracy_Information: Attribute_Value_Accuracy: 1.5 m Attribute: Attribute_Label: ALT_G Attribute_Definition: DGPS altitude Attribute_Definition_Source: Sander Geophysics Attribute_Value_Accuracy_Information: Attribute_Value_Accuracy: 0.2 m Attribute: Attribute_Label: GND_IG_C Attribute_Definition: IGRF corrected ground station Attribute_Definition_Source: Sander Geophysics Attribute_Value_Accuracy_Information: Attribute_Value_Accuracy: 0.1 nT Attribute: Attribute_Label: RAW_MAG Attribute_Definition: raw magnetic total field Attribute_Definition_Source: Sander Geophysics Attribute_Value_Accuracy_Information: Attribute_Value_Accuracy: 0.1 nT Attribute: Attribute_Label: MAG_GND Attribute_Definition: diurnal corrected mag Attribute_Definition_Source: Sander Geophysics Attribute_Value_Accuracy_Information: Attribute_Value_Accuracy: 0.1 nT Attribute: Attribute_Label: MAG_IG Attribute_Definition: diurnal and IGRF corrected mag Attribute_Definition_Source: Sander Geophysics Attribute_Value_Accuracy_Information: Attribute_Value_Accuracy: 0.1 nT Attribute: Attribute_Label: MAG_LEV Attribute_Definition: final leveled mag Attribute_Definition_Source: Sander Geophysics Attribute_Value_Accuracy_Information: Attribute_Value_Accuracy: 0.1 nT Attribute: Attribute_Label: LAT_N27 Attribute_Definition: latitude coordinate Attribute_Definition_Source: author Attribute_Value_Accuracy_Information: Attribute_Value_Accuracy: 0.2 m Attribute: Attribute_Label: LONG_N27 Attribute_Definition: longitude coordinate Attribute_Definition_Source: author Attribute_Value_Accuracy_Information: Attribute_Value_Accuracy: 0.2 m Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Address: Address_Type: mailing and physical address Address: 345 Middlefield Rd. City: Menlo Park State_or_Province: CA Postal_Code: 94025 Resource_Description: Downloadable Data Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: ASCII Transfer_Size: 16.317 Metadata_Reference_Information: Metadata_Date: 20051115 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Janet Tilden Contact_Organization: U.S. Geological Survey Contact_Position: geophysicist Contact_Address: Address_Type: mailing and physical address Address: 345 Middlefield Rd. City: Menlo Park State_or_Province: CA Postal_Code: 94025 Contact_Voice_Telephone: 650-329-5307 Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Time_Convention: local time Metadata_Extensions: Online_Linkage: http://www.esri.com/metadata/esriprof80.html Profile_Name: ESRI Metadata Profile