Identification_Information: Citation: Citation_Information: Originator: V.J.S. Grauch Originator: David A. Sawyer Publication_Date: 2007 Title: Reduced-to-pole aeromagnetic map of the Santo Domingo Basin area, New Mexico (plate 4 of 6) Edition: version 1.0 Geospatial_Data_Presentation_Form: map Series_Information: Series_Name: U.S. Geological Survey Professional Paper Issue_Identification: 1720 Publication_Information: Publication_Place: Denver, Colorado, USA Publisher: U.S. Geological Survey Online_Linkage: http://pubs.usgs.gov/pp/1720/p1720-pl4.pdf Larger_Work_Citation: Citation_Information: Originator: Scott A. Minor, editor Publication_Date: 2007 Title: The Cerrillos Uplift, the La Bajada Constriction, and Hydrogeologic Framework of the Santo Domingo Basin, Rio Grande Rift, New Mexico Edition: version 1.0 Geospatial_Data_Presentation_Form: map Series_Information: Series_Name: U.S. Geological Survey Professional Paper Issue_Identification: 1720 Publication_Information: Publication_Place: Denver, Colorado, USA Publisher: U.S. Geological Survey Online_Linkage: http://pubs.usgs.gov/pp/1720/ Description: Abstract: A color shaded-relief image of aeromagnetic data is shown for the Santo Domingo Basin area at 1:100,000 scale. The data are extracted from U.S. Geological Survey Open-File report 02-0205, published in 2002 by Ronald E. Sweeney, V.J.S. Grauch, and Jeffrey D. Phillips. Purpose: Presentation of gridded aeromagnetic data values display aeromagnetic anomalies used in geological and geophysical studies. Aeromagnetic anomalies are due to variations in the Earth's magnetic field caused by a combination of the uneven distribution of magnetic minerals (primarily magnetite) in the rocks that make up the upper part of the Earth's crust and the variations in the permanent magnetization contained by these minerals. The features and patterns of the aeromagnetic anomalies can be used to delineate details of subsurface geology, including the locations of buried faults, magnetite-bearing rocks, and lithologic differences in some sedimentary rocks or sediments. This information is valuable for mineral exploration, geologic mapping, and ground-water and environmental studies. Supplemental_Information: Also included are interpretative annotations of the map features that are discussed in chapter D of USGS Professional Paper 1720. Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 1997 Ending_Date: 1998 Currentness_Reference: survey dates Status: Progress: complete Maintenance_and_Update_Frequency: none planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -106.75 degrees West longitude East_Bounding_Coordinate: -106.0 degrees West longitude North_Bounding_Coordinate: 35.875 degrees North latitude South_Bounding_Coordinate: 35.25 degrees North latitude Keywords: Place: Place_Keyword_Thesaurus: none Place_Keyword: New Mexico Place_Keyword: Santo Domingo basin Place_Keyword: Cochiti Pueblo Place_Keyword: Cochiti Dam Place_Keyword: La Bajada Place_Keyword: southern Espanola basin Place_Keyword: Santa Ana Mesa Place_Keyword: Cerillos Hills Place_Keyword: Cerros del Rio volcanic field Theme: Theme_Keyword_Thesaurus: none Theme_Keyword: geophysical data Theme_Keyword: aeromagnetic map Theme_Keyword: aeromagnetic image Access_Constraints: none Use_Constraints: none Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: V.J.S. Grauch Contact_Organization: U.S. Geological Survey Contact_Address: Address_Type: mailing address Address: Box 25046, MS964 Denver Federal Center City: Denver State_or_Province: CO Postal_Code: 80225-0046 Country: USA Contact_Voice_Telephone: 303-236-1393 Contact_Electronic_Mail_Address: tien@usgs.gov Native_Data_Set_Environment: The image was created from ERmapper software using grids of reduced-to-pole aeromagnetic data extracted from U.S. Geological Survey Open-File Report 02-0205. This previous report describes the data collection and processing procedures for the aeromagnetic data for the Middle Rio Grande and southern Espanola basins. Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: The data in the original grids are described fully in U.S. Geological Survey Open-File Report 02-0205, as well as a reduction-to-pole transformation that was applied to the data before they were extracted. Reduction-to-pole is a standard mathematical operation that corrects for shifts of the main anomaly from the center of the magnetic source. These shifts occur at most latitudes owing to the oblique orientation of the measured magnetic field with respect to the Earth’s surface (the field is vertical only at the magnetic poles). Logical_Consistency_Report: The parameters used to display the aeromagnetic data (color scale and orientation of the illumination) were chosen to best enhance features discussed in the text that accompanies plate 4 (chapter D in U.S. Geological Survey Professional Paper 1720). Completeness_Report: The image area is irregular because it is limited to the areas covered by detailed aeromagnetic surveys flown in the area. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: Horizontal position is derived from the original gridded data and mapped with respect to latitude/longitude tick marks using NAD27 projection. Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: The data represented on the map were analytically continued to a simulated observation height of 100 meters above ground. The continuation procedure and accuracy thereof is reported in U.S. Geological Survey Open-File Report 02-0205. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: Ronald E. Sweeney Originator: V.J.S. Grauch Originator: Jeffrey D. Phillips Publication_Date: 2002 Title: Merged digital aeromagnetic data for the Middle Rio Grande and Southern Española Basins, New Mexico Edition: version 1.0 Geospatial_Data_Presentation_Form: TIF, PDF, GXF Series_Information: Series_Name: U.S. Geological Survey Open-File Report Issue_Identification: 02-0205 Publication_Information: Publication_Place: Denver, Colorado, USA Publisher: U.S. Geological Survey Online_Linkage: http://pubs.usgs.gov/of/2002/ofr-02-0205/ Type_of_Source_Media: PDF Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 1997 Ending_Date: 1998 Source_Currentness_Reference: survey dates Source_Citation_Abbreviation: Sweeney and others, 2002 Source_Contribution: reduced-to-pole aeromagnetic data Process_Step: Process_Description: Reduced-to-pole, analytically continued aeromagnetic data were extracted from gridded data contained in U.S. Geological Survey Open-File Report 02-0205. The grids contained data that had been continued to simulate an observation height of 100 meters above ground and reduced-to-pole assuming an inducing Earth's magnetic field with inclination = 63 degrees and declination = 11 degrees. A full description of the data and processing is available at http://pubs.usgs.gov/of/2002/ofr-02-0205. Process_Date: 2001-2002 Process_Step: Process_Description: Grids extracted from U.S. Geological Survey Open-File Report 02-0205 were developed into an image using ERmapper display software. Color scale was stretched manually using an empirical procedure and is shown on the map next to the image on plate 4. The illumination of the data was chosen to originate from the west in order to (1) avoid illumination oblique to the east-west flight line direction and (2) highlight north-south linear features so they can be seen easily. Process_Date: 2002 Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: raster Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Grid_Coordinate_System: Grid_Coordinate_System_Name: Universal Transverse Mercator Universal_Transverse_Mercator: UTM_Zone_Number: 13 Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.9996 Longitude_of_Central_Meridian: -105 Latitude_of_Projection_Origin: 0.0 False_Easting: 500000 False_Northing: 0.0 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 30 Ordinate_Resolution: 30 Planar_Distance_Units: Meters Geodetic_Model: Horizontal_Datum_Name: North American Datum of 1927 Ellipsoid_Name: Clarke 1866 Semi-major_Axis: 6378206.4 Denominator_of_Flattening_Ratio: 294.98 Entity_and_Attribute_Information: Overview_Description: Entity_and_Attribute_Overview: Plate 4 is a downloadable PDF file that is annotated for map scale, data scales, and selected geographic and interpretative features discussed in chapter D of USGS Professional Paper 1720. Entity_and_Attribute_Detail_Citation: Plate 4 of USGS Professional Paper 1720 Detailed_Description: Entity_Type: Entity_Type_Label: magnetic-field intensity Entity_Type_Definition: Ascii real number value Entity_Type_Definition_Source: well-established geophysical data quantities Attribute: Attribute_Label: magnetic-field intensity Attribute_Definition: Reduced-to-pole aeromagnetic data are displayed as a color shaded-relief image, shown in values of nanoteslas. The data were extracted from U.S. Geological Survey Open-File Report 02-0205. Data and processing are described in the previous report. Reduction-to- pole is a standard mathematical operation that corrects for shifts of the main anomaly from the center of the magnetic source. These shifts occur at most latitudes owing to the oblique orientation of the measured magnetic field with respect to the Earth’s surface (the field is vertical only at the magnetic poles). Attribute_Definition_Source: see: Nettleton, L.L., 1971, Elementary gravity and magnetics for geologists and seismologists: Society of Exploration Geophysicists Monograph Series No. 1, p. 83-87. see: Blakely, R.J., 1995, Potential theory in gravity and magnetic applications: Cambridge University Press, 441 p. Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -2300 Range_Domain_Maximum: 3200 Attribute_Units_of_Measure: nanoteslas Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey - Information Services Contact_Address: Address_Type: mailing address Address: USGS Information Services Address: Box 25286, Mail Stop 306 City: Denver State_or_Province: Colorado Postal_Code: 80225 Country: USA Contact_Voice_Telephone: 1-888-ASK-USGS Contact_Facsimile_Telephone: 303-202-4693 Resource_Description: U.S. Geological Survey Professional Paper 1720; available as one of six oversize plates on CD-ROM packaged with printed book (book duplicated on CD-ROM, along with the plates). Order from USGS at the address listed above or see http://store.usgs.gov for more ordering information. Distribution_Liability: Although these digital spatial data have been subjected to rigorous review and are substantially complete, they are released on the condition that neither the USGS nor the United States Government may be held liable for any damages resulting from their authorized or unauthorized use. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: PDF Format_Version_Number: Acrobat 7.0 Digital_Transfer_Option: Offline_Option: Offline_Media: CD-ROM Recording_Format: Joliet Compatibility_Information: MS Windows and Mac OS Fees: For current charges please see http://store.usgs.gov Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Address: Address_Type: mailing address Address: Denver Publishing Service Center Address: MS 902, Box 25046 DFC City: Lakewood State_or_Province: CO Postal_Code: 80225-0046 Country: USA Contact_Voice_Telephone: 303-236-4845 Distribution_Liability: Although these digital spatial data have been subjected to rigorous review and are substantially complete, they are released on the condition that neither the USGS nor the United States Government may be held liable for any damages resulting from their authorized or unauthorized use. Resource_Description: U.S. Geological Survey Professional Paper 1720 Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: PDF Format_Version_Number: Acrobat 7.0 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://pubs.usgs.gov/pp/1720/ Fees: none Metadata_Reference_Information: Metadata_Date: 200703 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: V.J.S. Grauch Contact_Organization: U.S. Geological Survey Contact_Address: Address_Type: mailing address Address: U.S. Geological Survey Box 25046 Mail Stop 964 Denver Federal Center City: Denver State_or_Province: CO Postal_Code: 80225 Country: USA Contact_Voice_Telephone: 303-236-1393 Contact_Electronic_Mail_Address: tien@usgs.gov Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998