Identification_Information: Citation: Citation_Information: Originator: George H. Billingsley Originator: Debra L. Block Originator: Helen C. Dyer Publication_Date: 2006 Title: Geologic Map of the Peach Springs 30' x 60' Quadrangle, Mohave and Coconino Counties, Northwestern Arizona Edition: Version 1.1 Series_Information: Series_Name: U.S. Geological Survey Scientific Investigations Map Issue_Identification: 2900 Publication_Information: Publication_Place: Reston, Virginia Publisher: U.S. Geological Survey Online_Linkage: http://pubs.usgs.gov/sim/2006/2900/ Description: Abstract: This geodatabase represents the general distribution of bedrock and surficial deposits in the Peach Springs 30' x 60' quadrangle. The database delineates map units identified by general age and lithology following the stratigraphic nomenclature of the U.S. Geological Survey. The Peach Springs quadrangle encompasses approximately 5,128 sq. km (1,980 sq. mi) within Mohave and Coconino Counties, northwestern Arizona. The map area is bounded by longitude 113 degrees to 114 degrees W, and latitude 35.5 degrees to 36 degrees N. This digital map database, compiled from previously published and unpublished data, and new mapping by the authors, represents the general distribution of bedrock and surficial deposits in the Peach Springs quadrangle. The database delineates map units that are identified by general age and lithology following the stratigraphic nomenclature of the U.S. Geological Survey. The scale of the source map limits the spatial resolution of the database to 1:100,000 or smaller. There is about 427 m (1,400 ft) of Proterozoic crystalline metamorphic rocks, 1,450 m (4,760 ft) of Paleozoic strata, Lower Cambrian to Lower Permian age in the walls of Grand Canyon, and about 305 m (1,000 ft) of Tertiary sediments in the map area. The Paleozoic and Tertiary rocks are partly covered by Quaternary surficial alluvial and eolian sand deposits and volcanic rocks on the Shivwits Plateau and Hualapai Plateau. Monoclines, high-angle normal faults, and breccia pipes are characteristic structures dominated by the Horse Flat, Meriwhitica, Hurricane, Toroweap, and Aubrey Monoclines; the Grand Wash, Meriwhitica, Hurricane, Toroweap, and Aubrey Faults. The map area lies within the southwestern part of the Colorado Plateaus geologic province and a small part of the southeastern Basin and Range geologic province in northwestern Arizona. The map is locally subdivided into seven physiographic parts, the Grand Canyon, Sanup Plateau, Shivwits Plateau, Hualapai Plateau, Coconino Plateau, Truxton Valley, and Aubrey Valley of the Colorado Plateaus; and the Hualapai Valley of the Basin and Range. The map area is bounded by long. 113° to 114° and lat. 36° to 36°30'. Peach Springs and Grand Canyon Caverns are the only communities within the map area along U.S. Highway 66. Version 1.1, March, 2014 - Minor edits were made to the geodatabase to correct geology and facilitate edgematch with adjacent USGS maps. - The database was upgraded from ArcGIS 9.3 to ArcGIS 10.2. - Changes made to the geodatabase are not reflected in the pamphlet or on map sheet PDFs. Purpose: The map and accompanying pamphlet provide information on the geologic structure and stratigraphy of the area and are intended to be of use both in the scientific community and within the context of regional resource managment activities. Supplemental_Information: The accompanying style file (peachsprings100k.style) contains the symbols applied to each feature class in ArcMap to create the cartographic map. The structure of this geodatabase and its associated feature classes, as well as the feature class naming conventions, loosely follows The National Park Service Geologic Resources Inventory Geology-GIS Geodatabase Data Model (V. 2.1), which can be found at: http://science.nature.nps.gov/im/inventory/geology/GeologyGISDataModel.cfm The geodatabase includes the following: structure data (psatd) fault bar and ball ornaments (psbnb) folds (psfld) geologic contacts and faults (psglg_arc) geologic unit polygons (psglg_poly) geologic unit labels (psglg_pt) karst features (pskar) volcanic line features (psvlf) volcanic point features (psvpf) Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 1992 Ending_Date: 2006 Currentness_Reference: publication date Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -114.0 East_Bounding_Coordinate: -113.0 North_Bounding_Coordinate: 36.0 South_Bounding_Coordinate: 35.5 Keywords: Theme: Theme Keyword Peach Springs Theme Keyword Hualapai Plateau Theme Keyword Hualapai Indian Reservation Theme Keyword Shivwits Plateau Theme Keyword Diamond Creek Theme Keyword Music Mountains Theme Keyword Kelly Point Theme Keyword Grand Wash Cliffs Theme Keyword Grand Canyon Theme Keyword Colorado River Theme Keyword Aubrey Valley Theme Keyword Hurricane Fault Theme Keyword Toroweap Fault Theme Keyword Blue Mountain Theme Keyword Grand Canyon Caverns Theme Keyword Coconino Plateau Theme Keyword Hualapai Valley Theme Keyword US Highway 66 Place: Place_Keyword_Thesaurus: none Place_Keyword: Peach Springs Place_Keyword: Colorado Plateau Place_Keyword: Coconino County Place_Keyword: Mohave County Place_Keyword: Arizona Place_Keyword: USA Access_Constraints: none Use_Constraints: Not for use at scales greater than 1:24,000. 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. Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: George H. Billingsley Contact_Organization: U.S. Geological Survey Contact_Position: Geologist Contact_Address: Address_Type: mailing and physical address Address: 2255 N. Gemini Dr. City: Flagstaff State_or_Province: Arizona Postal_Code: 86001 Country: USA Contact_Voice_Telephone: 928-556-7198 Contact_Facsimile_Telephone: 928-556-7169 Contact_Electronic_Mail_Address: gbillingsley@usgs.gov Data_Set_Credit: George Billingsley mapped the geology for this publication in 1992-1998. Paul Umhoefer of Northern Arizona University, Flagstaff, Arizona and Richard A. Young of the State University of New York, Geneseo, New York provided technical review. Helen Dyer prepared the original digital files. This digital database was prepared by Debra Block and reviewed by Scott Graham. Native_Data_Set_Environment: ESRI ArcGIS 10.2, Personal Geodatabase Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: Geologic features in this geodatabase were symbolized based on attributes and plotted at 1:100,000 scale, then visually reviewed for accuracy by the authors. Logical_Consistency_Report: Polygon and chain-node topology present. The neatline was mathematically generated from latitude and longitude values. Consequently, polygons intersecting the lines that compose the map boundary are closed by that boundary. Polygons internal to the map boundary are completely enclosed by line segments which are themselves a set of sequentially numbered coordinate pairs. Point data are represented by coordinate pairs. This geodatabase has been reviewed and is considered to be error-free. All features have attributes. Each line segment has a length and directionality that is appropriate for the geologic feature it depicts. No sliver polygons are present. Completeness_Report: This report is designed to describe completely the surficial and bedrock geology at a 1:100,000 scale. Geologic information only mappable at a larger scale has been omitted. All geospatial database elements are attributed. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: Geologic lines and points on 1:100,000 scale geologic maps are judged to meet map-accuracy standards if they are located to within +/-50 meters, relative to topographic or cultural features on the base map. However, since initial mapping utilized larger scale base maps, the horizontal positional accuracy is determined to be within +/- 15 meters on the ground. Lines and points that meet (or may not meet) this map-accuracy standard are identified both in the digital database and on derivative geologic-map plots. On geologic-map plots, line data that are judged to meet the map-accuracy standard are denoted by solid lines; line data that may not meet the map-accuracy standard are denoted by dashed or dotted lines. Lineage: Process_Step: Process_Description: This map was produced using 1:24,000-scale 1967 black and white aerial photographs followed by extensive field checking. Volcanic rocks were mapped as separate units when identified on aerial photographs as mappable and distinctly separate units associated with one or more pyroclastic cones and flows. Many of the Quaternary alluvial deposits that have similar lithology but different geomorphic characteristics were mapped almost entirely by photogeologic methods. Stratigraphic position and amount of erosional degradation were used to determine relative ages of alluvial deposits having similar lithologies. Each map unit and structure was investigated in detail in the field to ensure accuracy of description. Process_Date: 1992-1998 Process Description: The linework was vectorized using ArcScan and then edited interactively in ArcMap. Polygons were attributed in ArcMap and all artifacts and scanning errors visible at 1:100,000 were removed. The feature classes which define the geologic units, lines and polygons, are topologically related and maintained in the geodatabase by a set of validation rules. Point data were digitized onscreen. Process Date: 2005 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 0.001 Ordinate_Resolution: 0.001 Planar_Distance_Units: meters Geodetic_Model: Horizontal_Datum_Name: North American Datum of 1927 Ellipsoid_Name: Clarke 1866 Semi-major_Axis: 6378206.400000 Denominator_of_Flattening_Ratio: 294.978698 Entity_and_Attribute_Information: Overview_Description: Entity_and_Attribute_Overview: The feature dataset 'geology' contains geologic data feature classes, including structure data (psatd), fold axes (psfld), geologic contacts and faults (psglg_arc), geologic unit polygons (psglg_poly), geologic unit labels (psglg_pt), karst features (pskar), volcanic line features (psvlf), volcanic point features (psvpf), and fault displacement symbols (psbnb). Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Information Services Contact_Address: Address_Type: mailing address Address: Box 25286 Denver Federal Center City: Denver State_or_Province: Colorado Postal_Code: 80225 Country: USA Contact_Voice_Telephone: 1-888-ASK-USGS Contact_Electronic_Mail_Address: ask@usgs.gov Resource_Description: Downloadable Data Distribution_Liability: 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 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. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: ArcGIS Personal Geodatabase Format_Version_Number: 10.2 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://pubs.usgs.gov/sim/2006/2900/ Fees: none Metadata_Reference_Information: Metadata_Date: 20130731 Metadata_Review_Date: August 21, 2007 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Debra Block Contact_Organization: U.S. Geological Survey Contact_Position: Geologist Contact_Address: Address_Type: mailing and physical address Address: 2255 N. Gemini Dr. City: Flagstaff State_or_Province: Arizona Postal_Code: 86001 Country: USA Contact_Voice_Telephone: 928-556-7138 Contact_Facsimile_Telephone: 928-556-7169 Contact_Electronic_Mail_Address: dblock@usgs.gov Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Time_Convention: local time Metadata_Access_Constraints: none Metadata_Use_Constraints: none Metadata_Extensions: Online_Linkage: http://www.esri.com/metadata/esriprof80.html Profile_Name: ESRI Metadata Profile