Metadata: Identification_Information: Citation: Citation_Information: Originator: Bard, Joseph A. Originator: Ramsey, David W. Originator: Wolfe, Edward W. Originator: Ulrich, George E. Originator: Newhall, Christopher G. Originator: Moore, Richard B. Originator: Bailey, Norman G. Originator: Holm, Richard F. Publication_Date: 2015 Title: Database compilation for the geologic map of the San Francisco volcanic field, north-central Arizona Edition: 1.0 Geospatial_Data_Presentation_Form: vector digital data Series_Information: Series_Name: Data Series Issue_Identification: DS 961 Online_Linkage: http://dx.doi.org/10.3133/ds961 Description: Abstract: The dataset "geounits" (ESRI personal geodatabase polygon feature class) was prepared using geographic information system (GIS) applications. These data are a subset of the geologic map database "Database compilation for the geologic map of the San Francisco volcanic field, north-central Arizona" (ESRI Personal Geodatabase). This polygon dataset delineates geologic unit features in the San Francisco volcanic field. The attributes associated with the geologic units includes volcanic vent and deposit relationships, basalt types, age, paleomagnetic polarity, and map unit correlations.This database is composed of five adjoining, previously-published, U.S. Geological Survey geologic maps of parts of the volcanic field: SP Mountain, Miscellaneous Field Studies Map MF-1956; northwest, Miscellaneous Field Studies Map MF-1957; southwest, Miscellaneous Field Studies Map MF-1958; central, Miscellaneous Field Studies Map MF-1959; and east, Miscellaneous Field Studies Map MF-1960. These maps were prepared under the Geothermal Research Program of the U.S. Geological Survey as a basis for interpreting the history of magmatic activity in the volcanic field. Purpose: The dataset “geounits” was constructed to create a georeferenced digital geologic map of the San Francisco volcanic field to aid in understanding processes and volcano hazards involved in the eruptions of the constituent volcanoes. Supplemental_Information: The main component of this publication is a geologic map database prepared using geographic information system (GIS) applications. The geodatabase of geologic points, lines, and polygons was produced as a compilation from five adjoining map sections originally published as printed maps in 1987 (see references below). Four of the sections (U.S. Geological Survey Miscellaneous Field Studies Maps MF-1957, MF-1958, MF-1959, MF-1960) were created by scanning and geo-referencing stable base map material consisting of mylar positives. The final section (MF-1956) was compiled by hand tracing an enlargement of the available printed paper base map onto mylar using a #00 rapidograph pen, the mylar positive was then digitally scanned and geo-referenced. This method was chosen because the original basemap materials (mylar positives) for the MF-1956 section were unavailable at the time of this publication. Due to the condition of the available MF-1956 map section used as the base (which had previously been folded) the accuracy within the boundary of the MF-1956 section is presumed to be degraded in certain areas. The locations of the degraded areas and the degree of degradation within these areas is unclear. Final compilation of the database was completed using the ArcScan toolset, and the Editor toolset in ESRI ArcMap 10.1. Polygon topology was created from the lines and labels were added to the resultant geological polygons, lines, and points. Joseph A. Bard and David W. Ramsey updated and corrected the geodatabase, created the metadata and web presence, and provided the GIS-expertise to bring the geodatabase and metadata to completion. Included are links to files to view or print the original map sheets and the accompanying pamphlets (see references below). The orignial geologic maps were prepared under the Geothermal Research Program of the U.S. Geological Survey as a basis for interpreting the history of magmatic activity in the volcanic field. The San Francisco field, which is largely Pleistocene in age, is in northern Arizona, just north of the broad transition zone between the Colorado Plateau and the Basin and Range province. It is one of several dominantly basaltic volcanic fields of the late Cenozoic age situated near the margin of the Colorado Plateau. The volcanic field contains rocks ranging in composition from basalt to rhyolite - the products of eruption through Precambrian basement rocks and approximately a kilometer of overlying, nearly horizontal, Paleozoic and Mesozoic sedimentary rocks. About 500 cubic km of erupted rocks cover about 5,000 square km of predominantly Permian and locally preserved Triassic sedimentary rocks that form the erosionally stripped surface of the Colorado Plateau in Northern Arizona. References Cited: MF-1956: Ulrich, G.E., and Bailey, N.G., 1987, Geologic map of the SP Mountain part of the San Francisco volcanic field, north-central Arizona: U.S. Geological Survey Miscellaneous Field Studies Map MF-1956, sheets 1 and 2. MF 1957: Wolfe, E.W., Ulrich, G.E., and Newhall, C.G., 1987, Geologic map of the northwest part of the San Francisco volcanic field, north-central Arizona: U.S. Geological Survey Miscellaneous Field Studies Map MF-1957, sheets 1 and 2. MF-1958: Newhall, C.G., Ulrich, G.E.., and Wolfe, E.W., 1987, Geologic map of the southwest part of the San Francisco volcanic field, north-central Arizona: U.S. Geological Survey Miscellaneous Field Studies Map MF-1958, sheets 1 and 2. MF-1959: Wolfe, E.W., Ulrich, G.E., Holm, R.F., Moore, R.B., and Newhall, C.G., 1987, Geologic map of the central part of the San Francisco volcanic field, north-central Arizona: U.S. Geological Survey Miscellaneous Field Studies Map MF-1959, sheets 1 and 2. MF-1960: Moore, R.B., and Wolfe, E.W., 1987, Geologic map of the east part of the San Francisco volcanic field, north-central Arizona: U.S. Geological Survey Miscellaneous Field Studies Map MF-1960, sheets 1 and 2. Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 19870101 Ending_Date: 20160101 Currentness_Reference: Unknown Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -112.416255 East_Bounding_Coordinate: -111.119018 North_Bounding_Coordinate: 35.841365 South_Bounding_Coordinate: 35.076266 Keywords: Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: San Francisco Theme_Keyword: volcanic field Theme_Keyword: Sunset Crater Theme_Keyword: SP Mountain Theme_Keyword: Arizona Theme_Keyword: northern Arizona Theme_Keyword: geology Theme_Keyword: geological map Theme_Keyword: map Theme_Keyword: basalt Theme_Keyword: tuff Theme_Keyword: andesite Theme_Keyword: benmorite Theme_Keyword: rhyolite Theme_Keyword: Pleistocene Theme_Keyword: Pliocene Theme_Keyword: Miocene Theme_Keyword: polarity Theme_Keyword: Matuyama Theme_Keyword: Gauss Theme_Keyword: Gilbert Theme_Keyword: Kaibab. Red Mountain Theme_Keyword: Navajo Reservation Theme_Keyword: geothermal Theme_Keyword: basaltic volcanic fields Theme_Keyword: Colorado Plateau Theme_Keyword: monocline Theme_Keyword: anticlyne Theme_Keyword: fault Theme_Keyword: geologic contact Theme_Keyword: geologic unit Theme_Keyword: geologic sample Theme_Keyword: geochemistry Theme_Keyword: rock analysis Theme_Keyword: age Theme_Keyword: Potassium Argon Theme_Keyword: fission track Theme_Keyword: K-Ar Theme_Keyword: MF-1956 Theme_Keyword: MF-1957 Theme_Keyword: MF-1958 Theme_Keyword: MF-1959 Theme_Keyword: MF-1960 Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Categories Theme_Keyword: geoscientificInformation Place: Place_Keyword_Thesaurus: None Place_Keyword: Arizona Place_Keyword: San Francisco Volcanic Field Place_Keyword: Sunset Crater Place_Keyword: SP Mountain Place_Keyword: United States of America Place_Keyword: Southwest Place_Keyword: Flagstaff Place_Keyword: Humphreys Peak Place_Keyword: Wupatki National Monument Place_Keyword: Coconino National Forest Place_Keyword: Red Mountain Place_Keyword: Kaibab Place_Keyword: National Forest Place_Keyword: Williams Access_Constraints: None Use_Constraints: Uses of this digital geologic map should not violate the spatial resolution of the data. Although the digital form of the data removes the constraint imposed by the scale of a paper map, the detail and accuracy inherent in map scale are also present in the digital data. The fact that this database was edited for a scale of 1:50,000 means that higher resolution information is not present in the dataset. Plotting at scales larger than 1:50,000 will not yield greater detail, although it may reveal fine-scale irregularities below the intended resolution of the database. Similarly, where this database is used in combination with other data of higher resolution, the resolution of the combined output will be limited by the lower resolution of these data. Acknowledgement of the U.S. Geological Survey would be appreciated in products derived from these data. If any errors are detected, please notify Joseph Bard (jbard@usgs.gov). The U.S. Geological Survey strongly recommends that careful attention be paid to the metadata file associated with these data.Any derivative products utilizing these datasets shall clearly indicate their source. If users modify the data in any way they are obligated to describe the types of modifications they have performed. User specifically agrees not to misrepresent these datasets, nor to imply that changes they made were approved by the U.S. Geological Survey.This database, identified as DS 961, has been approved for release and publication by the U.S. Geological Survey (USGS). Although this database has been subjected to rigorous review and is substantially complete, the USGS reserves the right to revise the data pursuant to further analysis and review. The U.S. Geological Survey (USGS) provides these geographic data "as is." The USGS makes no guarantee or warranty concerning the accuracy of information contained in the geographic data. The USGS further makes no warranties, either expressed or implied as to any other matter whatsoever, including, without limitation, the condition of the product, or its fitness for any particular purpose. The burden for determining fitness for use lies entirely with the user. Although these data have been processed successfully on computers at the USGS, no warranty, expressed or implied, is made by the USGS regarding the use of these data on any other system, nor does the fact of distribution constitute or imply any such warranty. In no event shall the USGS nor the U.S. Government have any liability whatsoever for payment of any consequential, incidental, indirect, special, or tort damages of any kind, including, but not limited to, any loss of profits arising out of use of or reliance on the geographic data or arising out of delivery, installation, operation, or support by USGS.Acknowledgment of the U.S. Geological Survey would be appreciated in products derived from these data.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_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: Bard, Joseph A. Contact_Position: Physical Science Technician Contact_Address: Address_Type: mailing and physical Address: 1300 SE Cardinal Ct, Bldg 10, Ste 100 City: Vancouver State_or_Province: Washington Postal_Code: 98683 Country: US Contact_Voice_Telephone: (360)993-8978 Contact_Facsimile_Telephone: (360)993-8980 Contact_Electronic_Mail_Address: jbard@usgs.gov Contact_Instructions: preferred contact by email Data_Set_Credit: Joseph A. Bard produced this digital database. He and David W. Ramsey updated and corrected the geodatabase, created the metadata and web presence, and provided the GIS-expertise to bring the geodatabase and metadata to completion. Edward W. Wolfe, George E. Ulrich, Christopher G. Newhall, Richard B. Moore, Norman G. Baily, and Richard F. Holm did the original geologic mapping. Digital review was provided by Sue Priest and Frank Trusdell. Native_Data_Set_Environment: Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS 10.3.1.4959 Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Vector Point_and_Vector_Object_Information: SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains Point_and_Vector_Object_Count: 4095 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Map_Projection: Map_Projection_Name: NAD 1927 StatePlane Arizona Central FIPS 0202 Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.9999 Longitude_of_Central_Meridian: -111.9166666666667 Latitude_of_Projection_Origin: 31.0 False_Easting: 500000.0 False_Northing: 0.0 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 0.0003280833333333333 Ordinate_Resolution: 0.0003280833333333333 Planar_Distance_Units: foot_us Geodetic_Model: Horizontal_Datum_Name: D North American 1927 Ellipsoid_Name: Clarke 1866 Semi-major_Axis: 6378206.4 Denominator_of_Flattening_Ratio: 294.9786982 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: geounits Entity_Type_Definition: Geologic line type. Entity_Type_Definition_Source: authors Attribute: Attribute_Label: OBJECTID Attribute_Definition: Internal feature number. Attribute_Definition_Source: Esri Attribute_Domain_Values: Unrepresentable_Domain: Sequential unique whole numbers that are automatically generated. Attribute: Attribute_Label: Shape Attribute_Definition: Feature geometry. Attribute_Definition_Source: Esri Attribute_Domain_Values: Unrepresentable_Domain: Coordinates defining the features. Attribute: Attribute_Label: VENT_NO Attribute_Definition: Vent identification number based on the township and range system Attribute_Definition_Source: authors Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: variable Enumerated_Domain_Value_Definition: Explained in mapping and map conventions on Sheet 1 of Miscellaneous Field Studies Map sections. Enumerated_Domain_Value_Definition_Source: authors Attribute: Attribute_Label: VENT_DEP Attribute_Definition: Vent deposit identification number based on vent location within the township and range system. Attribute_Definition_Source: authors Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: variable Enumerated_Domain_Value_Definition: Explained in mapping and map conventions on Sheet 1 of Miscellaneous Field Studies Map sections. Enumerated_Domain_Value_Definition_Source: authors Attribute: Attribute_Label: BASALT_TYPE Attribute_Definition: Identification letter based on mineralogy and abundance of phenocrysts. Attribute_Definition_Source: authors Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: variable Enumerated_Domain_Value_Definition: Explained in classification of basalts on Sheet 1 of Miscellaneous Field Studies Map sections, and discussed in the supplimental pamphlets. Enumerated_Domain_Value_Definition_Source: authors Attribute: Attribute_Label: AGE_Ma Attribute_Definition: Age of geologic unit in Mega-Annum. Attribute_Definition_Source: authors Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: variable Enumerated_Domain_Value_Definition: Explained in age and magnetic polarity determinations on Sheet 1 of Miscellaneous Field Studies Map sections. Enumerated_Domain_Value_Definition_Source: authors Attribute: Attribute_Label: POLARITY Attribute_Definition: Magnetic polarity of geologic unit. Attribute_Definition_Source: authors Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: variable Enumerated_Domain_Value_Definition: Explained in age and magnetic polarity determinations on Sheet 1 of Miscellaneous Field Studies Map sections. Enumerated_Domain_Value_Definition_Source: authors Attribute: Attribute_Label: POL_SAMPLE Attribute_Definition: Polarity sample indetification number based on location within township and range system. Attribute_Definition_Source: authors Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: variable Enumerated_Domain_Value_Definition: Explained in age and magnetic polarity determinations on Sheet 1 of Miscellaneous Field Studies Map sections. Enumerated_Domain_Value_Definition_Source: authors Attribute: Attribute_Label: AGE_SAMPLE_No Attribute_Definition: Age sample identification number based on location within the township and range system. Attribute_Definition_Source: authors Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: variable Enumerated_Domain_Value_Definition: Explained in age and magnetic polarity determinations on Sheet 1 of Miscellaneous Field Studies Map sections. Enumerated_Domain_Value_Definition_Source: authors Attribute: Attribute_Label: AGE_SAMPLE_Type Attribute_Definition: Analysis type used to determine age of geologic unit. Attribute_Definition_Source: authors Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: K-Ar Enumerated_Domain_Value_Definition: K-Ar (Potassium Argon) Enumerated_Domain_Value_Definition_Source: authors Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Fission Track Enumerated_Domain_Value_Definition: Fission Track Enumerated_Domain_Value_Definition_Source: Authors Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Enumerated_Domain_Value_Definition: Age field null if determination method omitted, or age analysis not conducted. Enumerated_Domain_Value_Definition_Source: authors Attribute: Attribute_Label: Notes Attribute_Definition: Additional information about features not represented graphically in the geodatabase. Attribute_Definition_Source: authors Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: variable Enumerated_Domain_Value_Definition: Notation added to clarify database construction or unit identification, for further information about map features reference the map conventions on Sheet 1 of Miscellaneous Field Studies Map sections. Enumerated_Domain_Value_Definition_Source: authors Attribute: Attribute_Label: UNIT Attribute_Definition: Geologic unit polygon lables. Attribute_Definition_Source: authors Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: variable Enumerated_Domain_Value_Definition: Explained in description of map units on Sheet 1 of Miscellaneous Field Studies Map sections and discussed in supplimental pamphlets. Enumerated_Domain_Value_Definition_Source: authors Attribute: Attribute_Label: UNIT_DMU Attribute_Definition: Description of map units. Attribute_Definition_Source: authors Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: variable Enumerated_Domain_Value_Definition: Explained in description of map units on Sheet 1 of Miscellaneous Field Studies Map sections and discussed in supplimental pamphlets. Enumerated_Domain_Value_Definition_Source: authors Attribute: Attribute_Label: GEOLOGIC_AGE Attribute_Definition: Geologic age of features. Attribute_Definition_Source: authors Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: variable Enumerated_Domain_Value_Definition: Origin of geologic unit in geologic time scale. Enumerated_Domain_Value_Definition_Source: authors Attribute: Attribute_Label: BASALT_DMU Attribute_Definition: Classification of basalts. Attribute_Definition_Source: authors Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: variable Enumerated_Domain_Value_Definition: Basalt type classified by mineralogy and abundance of phenocrysts. Enumerated_Domain_Value_Definition_Source: authors Attribute: Attribute_Label: Shape_Length Attribute_Definition: Length of feature in internal units. Attribute_Definition_Source: Esri Attribute_Domain_Values: Unrepresentable_Domain: Positive real numbers that are automatically generated. Attribute: Attribute_Label: Shape_Area Attribute_Definition: Area of feature in internal units squared. Attribute_Definition_Source: Esri Attribute_Domain_Values: Unrepresentable_Domain: Positive real numbers that are automatically generated. Attribute: Attribute_Label: AGE_PRE Attribute_Definition: Limits of precision of age dating in Mega-Annum, 1 standard deviation. Attribute_Definition_Source: authors Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: variable Enumerated_Domain_Value_Definition: Limits of precision of age dating in Mega-Annum, 1 standard deviation. Enumerated_Domain_Value_Definition_Source: authors Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: USGS Information Services Contact_Address: Address_Type: mailing Address: Box 25286 Denver Federal Center City: Denver State_or_Province: Colorado Postal_Code: 80225-0046 Country: US Contact_Voice_Telephone: 1-888-ASK-USGS Contact_Facsimile_Telephone: (303)202-4695 Contact_Electronic_Mail_Address: infoservices@usgs.gov Resource_Description: Downloadable Data at http://dx.doi.org/10.3133/ds961 Distribution_Liability: See access and use constraints information. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: ESRI Personal Geodatabase Format_Version_Number: 10.3 File_Decompression_Technique: Unzip Transfer_Size: 317 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://dx.doi.org/10.3133/ds961 Fees: 0.00 Available_Time_Period: Time_Period_Information: Single_Date/Time: Calendar_Date: 20160101 Metadata_Reference_Information: Metadata_Date: 2015 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: Bard, Joseph A. Contact_Position: Physical Science Technician Contact_Address: Address_Type: mailing and physical Address: 1300 SE Cardinal Ct, Bldg 10, Ste 100 City: Vancouver State_or_Province: Washington Postal_Code: 98683 Country: US Contact_Voice_Telephone: (360)993-8978 Contact_Facsimile_Telephone: (360)993-8980 Contact_Electronic_Mail_Address: jbard@usgs.gov Contact_Instructions: preferred contact by email Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Time_Convention: local time