Content Citation
Title of Content:  Geologic Map of the Bixby 7.5’ Quadrangle, Tulsa County, Oklahoma
Author:  Thomas M. Stanley and Julie M. Chang
Series Name, Identification:  Oklahoma Geologic Quadrangle Maps, OGQ-75
Type of Content:  Downloadable Data
Content Publisher:  Oklahoma Geological Survey, 	Norman, OK
Publication Date:  2009
Online:  http://www.ogs.ou.edu/geolmapping.php

Content Description
Abstract:  Geologic map data for the Bixby 7.5’ quadrangle, Tulsa County, Oklahoma, map OGQ-75.  Mapping conducted under the STATEMAP component of the National Cooperative Geologic Mapping Program (NCGMP).
Purpose:  Provide a geologic map data set for the Bixby 7.5’ quadrangle to be used in non site-specific investigations.

Spatial Reference
The spatial domain information stated below describes only the geologic map and not the cross section.  A spatial domain for the cross section does not exist because it was constructed at a 1:1 scale, where coordinates represent the measured length and width of the printed cross section.
Spatial Domain:  West Coordinate:  -96.00; East Coordinate:  -95.875; North Coordinate:  36.00; South Coordinate:  35.856
Coordinate System:  Universal Transverse Mercator, Zone 15N
Datum:  North American Datum of 1927 (NAD27)

Data Quality Information
Attribute Accuracy Report:  All labels have been checked and verified for identification and placement.  Consistent font size was also checked.  Attribute accuracy has been assessed as 99% accurate based on visual inspection by multiple reviewers.
Logical Consistency Report:  Geologic map data was visually compared to the geologists’ original field sheets for fullness and accuracy.  The geologic data was edge-matched to any adjacent mapped quadrangles for consistency.  Individual records were verified in order to remove duplicates and micro features.  Attributes were also checked for omissions.  Cross section was checked against the geologic map.  Adjoining polygons are snapped together at common vertices along shared borders.  Polygons intersecting the quadrangle boundary are closed along the border.  Segments making up the outer and inner boundaries of a polygon tie end-to-end to completely enclose the area.  Line segments are a set of sequentially numbered coordinate pairs.  No duplicate features exist nor duplicate points in a data string.  Intersecting lines are separated into individual line segments at the point of intersection.  Point data are represented by two sets of coordinate pairs, each with the same coordinate values.  All vertices are represented by a single coordinate pair which indicates the beginning or end of a line segment.  

Completeness Report:  The geologic features and their attributes come from the information supplied by the map authors.  The map unit names along with the geologic symbols are from the authors.  The geologic map units represent surface and subsurface geology types.  Cross section was derived from surface geology and subsurface wireline logs.
Horizontal Positional Accuracy Report:  USGS topographic map used as a base map has an accuracy of 40 ft.  Quaternary map unit contacts have an accuracy of 50 ft.  Sedimentary rock map unit contacts have an accuracy of 40 ft.  Petroleum well and non-GPS observations have an accuracy of 40 ft.  GPS observations have an accuracy of 16 ft as assessed by the GPS unit.  All geologic map features have been verified in the field and checked.  
Vertical Accuracy Report:  Vertical accuracy is 5 ft or less based on the USGS topographic map (1:24,000).  

Spatial Data Information
The data set contains a USGS topographic DRG and geologic map features for the map and cross section.  These components of the data set are described below.  Map unit description and correlation can be found on the published PDF map. 
o35095h8.tif (TIF image)
Description:  A spatially referenced digital raster graphic (DRG) of a USGS topographic map
Originator:  U.S. Geological Survey
Publication Date:  1957
Title:  Bixby
Series Information:  7.5 Minute (Topographic)
Issue Identification:  35095-H8-TF-024

FieldNotes.xls (Microsoft Excel spreadsheet)
Description:  Observation stop locations of ObservationGPS.shp
Attribute:  Stop – Reference number for stop location
Attribute:  Date – Calendar date when stop occurred 
Attribute:  Elev. (ft) – Approx. surface elevation derived from GPS
Attribute:  UTM Easting – Universal Transverse Mercator (UTM) grid Easting coordinate for stop location
Attribute:  UTM Northing – Universal Transverse Mercator (UTM) grid Northing coordinate for stop location
Attribute:  Acc. (ft) – Accuracy in feet
Attribute:  Notes – Misc. observations made about each stop

GeologicMap.lyr (ESRI ArcGIS layer file)
Description:  Symbology used for the published geologic map

MapUnitArea.shp (ESRI Shapefile) [Map]
Description:  Geologic map units that has a definable mapped area represented by a polygon
Attribute:  FID – Unique Feature Identification number for each row in table
Attribute:  Shape – Feature geometry
Attribute:  UnitSymbol – Geologic symbol for the map unit name
Attribute:  UnitName – Name of geologic map units
Attribute:  GeoAge – Geologic age designated as “Period, Epoch”

MapUnitLine.shp (ESRI Shapefile) [Map]
Description:  Geologic map units that has no definable mapped area and is represented by a polyline
Attribute:  FID – Unique Feature Identification number for each row in table
Attribute:  Shape – Feature geometry
Attribute:  UnitSymbol – Geologic symbol for the map unit name
Attribute:  UnitName – Name of geologic map units
Attribute:  GeoAge – Geologic age designated as “Period, Epoch”

Observation.shp (ESRI Shapefile)
Description:  Approximate point locations where a map unit outcrop or trace was observed
Attribute:  FID – Unique Feature Identification number for each row in table
Attribute:  Shape – Feature geometry
Attribute:  ID – User identification field

ObservationGPS.shp (ESRI Shapefile)
Description:  GPS point locations where a map unit outcrop or trace was observed
Attribute:  FID – Unique Feature Identification number for each row in table
Attribute:  Shape – Feature geometry
Attribute:  STOP – Reference number for stop location (corresponds to FieldNotes.xls)
Attribute:  UTM_E – Universal Transverse Mercator (UTM) Easting coordinate location
Attribute:  UTM_N – Universal Transverse Mercator (UTM) Northing coordinate location

PetroWell.shp (ESRI Shapefile)
Description:  Petroleum well locations, includes oil, gas, oil and gas, dry service (water supply or injection) junked and abandoned, and unknown.  Data derived from Natural Resources Information System (NRIS) at Oil-Law Records (http://www.oil-law.com/)
Attribute:  FID – Unique Feature Identification number for each row in table
Attribute:  Shape – Feature geometry
Attribute:  WELL_CHARA – Well type characteristic 

UnitContact.shp (ESRI Shapefile) [Map]
Description:  Map unit contacts that represent map unit boundaries
Attribute:  FID – Unique Feature Identification number for each row in table
Attribute:  Shape – Feature geometry
Attribute:  Location – Level of locational accuracy

XSectionLine.shp (ESRI Shapefile)
Description:  Line depicting the delineation of the cross section
Attribute:  FID – Unique Feature Identification number for each row in table
Attribute:  Shape – Feature geometry
Attribute:  Section – Cross section line identification 

CrossSection.lyr (ESRI ArcGIS layer file)
Description:  Symbology used for the published geologic cross section

Grid.shp (ESRI Shapefile)
Description:  Cross section measured grid and surface profile
Attribute:  FID – Unique Feature Identification number for each row in table
Attribute:  Shape – Feature geometry
Attribute:  FName – Identifier of grid measurement, base line, or surface profile

MapUnitArea.shp (ESRI Shapefile) [X-Section]
Description:  Geologic map units that has a definable thickness represented by a polygon
Attribute:  FID – Unique Feature Identification number for each row in table
Attribute:  Shape – Feature geometry
Attribute:  UnitSymbol – Geologic symbol for map unit name

MapUnitLine.shp (ESRI Shapefile) [X-Section]
Description:  Geologic map units that has no definable thickness and is represented by a polyline
Attribute:  FID – Unique Feature Identification number for each row in table
Attribute:  Shape – Feature geometry
Attribute:  UnitSymbol – Geologic symbol for map unit name

UnitContact.shp (ESRI Shapefile) [X-Section]
Description:  Map unit contacts that represent map unit boundaries
Attribute:  FID – Unique Feature Identification number for each row in table
Attribute:  Shape – Feature geometry
Attribute:  MapUnits – Identification of map unit boundary

Well.shp (ESRI Shapefile)
Description:  Wire-line log from petroleum well used in constructing cross section
Attribute:  FID – Unique Feature Identification number for each row in table
Attribute:  Shape – Feature geometry
Attribute:  WInfo – Petroleum well identification with projected distance and direction

PicLoc.shp (ESRI Shapefile)
Description:  Locations where pictures of outcrops were taken (for descriptions, see FieldNotes.xls or PicDesc.PDF)
Attribute:  FID – Unique Feature Identification number for each row in table
Attribute:  Shape – Feature geometry
Attribute:  Stop -- Reference number for stop location (corresponds to FieldNotes.xls and PicDesc.PDF)
Attribute:  UTM_E – Universal Transverse Mercator (UTM) Easting coordinate location
Attribute:  UTM_N – Universal Transverse Mercator (UTM) Northing coordinate location

Disclaimer
The Oklahoma Geological Survey (OGS) provides these geologic data “as is”. The OGS makes no guarantee or warranty concerning the accuracy of information contained in the data. The OGS 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 OGS, no warranty, expressed or implied, is made by the OGS 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 OGS 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 geologic data or arising out of the delivery, installation, operation, or support by OGS.

Contact Information
Organization:  Oklahoma Geological Survey
Person:  Thomas M. Stanley, Geologist IV; Julie M. Chang, Geologist II; and/or G. Russell Standridge, GIS Specialist
Address:  100 E. Boyd, SEC Room N-131, Norman, OK  73019
Phone:  405-325-3031
Email:  tmstanley@ou.edu; jmchang@ou.edu; gstan@ou.edu