Identification_Information: Citation: Citation_Information: Originator: Mark R. Hudson Originator: Kenzie J. Turner Publication_Date: 2009 Title: GEOLOGIC MAP OF THE ST. JOE QUADRANGLE, SEARCY AND MARION COUNTIES, ARKANSAS Edition: 1.0 Geospatial_Data_Presentation_Form: Map Series_Information: Series_Name: Scientific Investigations Map Issue_Identification: SIM-3074 Publication_Information: Publication_Place: Denver, Colorado Publisher: U.S. Geological Survey Online_Linkage: http://pubs.usgs.gov/sim/3074 Description: Abstract: This map summarizes the geology of the St. Joe 7.5-minute quadrangle (fig. 1) in the Ozark Plateaus region of northern Arkansas. Geologically, the area lies on the southern flank of the Ozark dome, an uplift that exposes oldest rocks at its center in Missouri. Physiographically, the St. Joe quadrangle lies within the Springfield Plateau, a topographic surface generally held up by Mississippian cherty limestone (Purdue and Miser, 1916). The quadrangle also contains isolated mountains (for example, Pilot Mountain) capped by Pennsylvanian rocks that are erosional outliers of the higher Boston Mountains plateau to the south. Tomahawk Creek, a tributary of the Buffalo River, flows through the eastern part of the map area, enhancing bedrock erosion. Exposed bedrock of this region comprises an approximately 1,300-ft-thick sequence of Ordovician, Mississippian, and Pennsylvanian carbonate and clastic sedimentary rocks (fig. 2) that have been mildly deformed by a series of faults and folds. Purpose: To provide a geologic map database of the quadrangle that improves understanding of the regional geologic framework and its influence on the regional ground water flow system. Supplemental_Information: FILES INCLUDED IN THIS DATA SET: Dataset compiled in ESRI ArcGis 9.2 geodatabase format (shapefiles included) SJSIM.mdb: Personal geodatabase SJoe: Feature dataset including the following feature classes >>attitudes_flat: bedding attitudes less than or equal to 2 degrees >>attitudes_inclined: bedding attitudes greater than 2 degrees >>Boundary: map boundary >>cntrlpts_Mb: control points at the base of the of the Boone >> Formation (base of St. Joe Limestone Member) >>cntrlpts_Mbv: control points at the base of the Batesville >> Sandstone >>contacts: geologic contacts >>crosssection: cross-section lines >>faults: geologic faults >>folds: geologic folds >>labelpoints: geologic unit designation >>Polygons: geologic polygons with attributes designated by >> labelpoints >>CasonShale point feature indicating site of Cason Shale >>strcnt_Mb: structure contours on top of the main body of >> the Boone Formation >>faultdip dip direction and dip values for faults > >Raster files: >stjoe_base.tif/.tfw: bitmap image >stjoe_hill.tif/.tfw: hillshade image >stjoe_slope.tif/.tfw: *slope analysis of topography >stjoe_2slope.tif/.tfw: **slope of the slope analysis of topography > >* magnitude of slope value is represented by green to yellow to red >relative to increasing value >** slope of the slope image assisted in determination of Qc and Ql >boundaries Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2009 Currentness_Reference: Publication Date Status: Progress: Complete Maintenance_and_Update_Frequency: Mapping is continuing in adjacent areas and a revised compilation map may be completed in the future. Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -92.875 East_Bounding_Coordinate: -92.75 North_Bounding_Coordinate: 36.125 South_Bounding_Coordinate: 36.0 Keywords: Theme: Theme_Keyword_Thesaurus: AGI Glossary of Geology Theme_Keyword: geologic map Theme_Keyword: fault Theme_Keyword: fold Place: Place_Keyword_Thesaurus: Board of Geographic Names Place_Keyword: Arkansas Place_Keyword: Searcy County Place_Keyword: Marion County Place_Keyword: St. Joe Stratum: Stratum_Keyword_Thesaurus: National Geologic Map Database Geologic Names Lexicon (http://ngmdb.usgs.gov/Geolex/geolex_home.html) Stratum_Keyword: Everton Formation Stratum_Keyword: St. Peter Sandstone Stratum_Keyword: Plattin Limestone Stratum_Keyword: Fernvale Limestone Stratum_Keyword: St. Joe Limestone Stratum_Keyword: Boone Formation Stratum_Keyword: Batesville Sandstone Stratum_Keyword: Fayeteville Shale Stratum_Keyword: Pitkin Limestone Stratum_Keyword: Cane Hill Member Stratum_Keyword: Prairie Grove Member Stratum_Keyword: Hale Formation Stratum_Keyword: Bloyd Formation Temporal: Temporal_Keyword_Thesaurus: International Commission on Stratigraphy (http://www.stratigraphy.org) Temporal_Keyword: Paleozoic Temporal_Keyword: Ordovician Temporal_Keyword: Mississippian Temporal_Keyword: Pennsylvanian Access_Constraints: none Use_Constraints: None. Acknowledgement of the U.S. Geological Survey would be appropriate in products derived from these data. Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Mark R. Hudson Contact_Organization: U.S. Geological Survey Contact_Address: Address_Type: Physical address Address: Box 25046, MS 980, DFC City: Denver State_or_Province: Colorado Postal_Code: 80225 Country: USA Contact_Voice_Telephone: 303-236-7446 Contact_Facsimile_Telephone: 303-236-5349 Contact_Electronic_Mail_Address: mhudson@usgs.gov Data_Set_Credit: Funding for the project was provided by a U.S. Geological Survey project for cooperative work with the National Park Service. Native_Data_Set_Environment: ARC/INFO version 9.2 Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: the digital data with source materials. Authors and USGS map editors performed separate reviews. Logical_Consistency_Report: Map elements were visually checked by the authors for overshoots, undershoots, duplicate features, and other errors. There is a static topological relationship between the Polygon, contacts, Boundary, faults, and labelpoints feature classes. Features were not duplicated, but coincident lines exist between data layers where appropriate. Completeness_Report: Geologic map units were collected and digitized at appropriate resolution for portrayel on a base at 1:24:000-scale. Data are complete: no features were eliminated or generalized. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: Potential exists for errors in location by the geologist in the field but many locations of many contacts were aided at control sites by use of a global positioning receiver with typical horizontal accuracies less than 20 meters. Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: Contact locations were also aided by use of a barometric altimeter with vertical resolution of about 6 meters tied to topographic contours with vertical accuracy of about 6 meters. Topographic basemap elevation values (stjoebase.tif) are from published USGS 7.5-minute topographic map. Hillshade, slope, and slope of the slope analysis rasters were created from USGS NED 10 meter digital elevation model data. Lineage: Process_Step: Process_Description: Original mapping of the geology Process_Date: 2006-2007 Process_Step: Process_Description: The original data were imported into ArcMap/ArcInfo as point data. Process_Date: 2007 Process_Step: Process_Description: Point data were used to help constrain the geologist's placement of geologic contacts, faults, and folds. Process_Date: 2007-2008 Process_Step: Process_Description: Label points were created designating each geologic unit. Geologic polygons were created through an automated process in ArcCatalog based on the contacts, faults, and labelpoint feature classes. Process_Date: 2008 Process_Step: Process_Description: Draft check plots of the geologic map and explanation were created and submitted for peer review. Geologists reviewed the plots for conformity with U.S. Geological Survey editorial standards and Stratigraphic nomenclature. Revisions were made to the geospatial database as needed. Process_Date: 2008 Process_Step: Process_Description: First draft of metadata created using FGDCMETA.AML ver. 1.32 01/11/99 Process_Date: 2008 Process_Step: Process_Description: The database files, metadata, and check plots were edited by the USGS Publication Service Center in Denver, Colorado, and revisions made to the geospatial database and metadata as needed. Process_Date: 2008 Process_Step: Process_Description: The geospatial database files and metadata were quality checked for completeness and consistency. Process_Date: 2008 Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Vector Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Grid_Coordinate_System: Grid_Coordinate_System_Name: Universal Transverse Mercator Universal_Transverse_Mercator: UTM_Zone_Number: 15 Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.9996 Longitude_of_Central_Meridian: -93.0 Latitude_of_Projection_Origin: 0.0 False_Easting: 500,000.0 False_Northing: 0.0 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 9 meters Ordinate_Resolution: 9 meters 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: The complete geologic map database includes 13 component feature classes. The 'Polygons' features class contains geologic polygons constructed using the 'contacts', 'Boundary' and 'faults' feature classes as the bounding arcs and 'labelpoints' to attribute the polygons. 'CasonShale' feature class indicates one location of the Cason Shale that is not mappable at this scale. Other structural features are in 'folds'. Attitudes for bedding are included in 'attitudes_flat' and 'attitudes_inclined', and fault orientation data is included in 'faultdip'. Structural contours interpreted for the base of the Boone Formation are in 'strcnt_Mb'. Structural contours are constructed primarily based on field locations for the base of the Boone Formation in 'cntrlpts_MB'. Where the base of the Boone Formation is not exposed, field locations for the upper contact of Boone Formation with the Batesville Sandstone are used, and are in 'cntrlpts_Mbv'. Cross- section lines for A-A' and B-B' are in 'crosssection'. >----------------------------------------------------------------- >Database structure of 'Polygons': >----------------------------------------------------------------- >Field Name Data Type >OID Object ID >Shape Geometry > >Geometry Type-Polygon >Unit Text > >Length-50 >Description Text > >Length-100 >Shape_Length Double >Shape_Area Double > > >Descriptions of user-defined database items in 'Polygons': >Unit: Abbreviated name of map unit >Description: Name of map unit and geologic age > >Unique item list for 'Polygons': >Unit Description >Qal Alluvial deposits (Quaternary) >Qc Colluvial deposits (Quaternary) >Pbu Bloyd Formation, upper part (Lower Pennsylvanian, Morrowan) >Pbl Bloyd Formation, lower part (Lower Pennsylvanian, Morrowan) >Phg Hale Formation, Prairie Grove Member (Lower Pennsylvanian, Morrowan) >Phc Hale Formation, Cane Hill Member (Lower Pennsylvanian, Morrowan) >Mp Pitkin Limestone (Upper Mississippian, Chesterian) >Mfw Fayetteville Shale, Wedington Sandstone Member (Upper Mississippian, Chesterian) >Mf Fayetteville Shale, main body (Upper Mississippian, Chesterian) >Mbv Batesville Sandstone (Upper Mississippian, Chesterian) >Mb Boone Formation, main body (Upper to Lower Mississippian, Meramecian > to Osagean) >Mbs Boone Formation, St. Joe Limestone Member (Lower Mississippian, > Osagean to Kinderhookian) >Of Fernvale Limestone (Upper Ordovician) >Opl Plattin Limestone (Middle Ordovician) >Osp St. Peter Sandstone (Middle Ordovician) >Oeu Everton Formation, upper part (Middle Ordovician) >Oel Everton Formation, lower part (Middle Ordovician) > >----------------------------------------------------------------- >Database structure of 'labelpoints': >----------------------------------------------------------------- >Field Name Data Type >OBJECTID Object ID >SHAPE Geometry > >Geometry Type-Point >Unit Text > >Length-50 >Description Text > >Length-100 > > >Descriptions of user-defined database items in 'labelpoints': >Unit: Abbreviated name of map unit >Description: Name of map unit and geologic age > >Unique item list for 'labelpoints': >Unit Description >Qal Alluvial deposits (Quaternary) >Qc Colluvial deposits (Quaternary) >Pbu Bloyd Formation, upper part (Lower Pennsylvanian, Morrowan) >Pbl Bloyd Formation, lower part (Lower Pennsylvanian, Morrowan) >Phg Hale Formation, Prairie Grove Member (Lower Pennsylvanian, Morrowan) >Phc Hale Formation, Cane Hill Member (Lower Pennsylvanian, Morrowan) >Mp Pitkin Limestone (Upper Mississippian, Chesterian) >Mfw Fayetteville Shale, Wedington Sandstone Member (Upper Mississippian, Chesterian) >Mf Fayetteville Shale, main body (Upper Mississippian, Chesterian) >Mbv Batesville Sandstone (Upper Mississippian, Chesterian) >Mb Boone Formation, main body (Upper to Lower Mississippian, Meramecian > to Osagean) >Mbs Boone Formation, St. Joe Limestone Member (Lower Mississippian, > Osagean to Kinderhookian) >Of Fernvale Limestone (Upper Ordovician) >Opl Plattin Limestone (Middle Ordovician) >Osp St. Peter Sandstone (Middle Ordovician) >Oeu Everton Formation, upper part (Middle Ordovician) >Oel Everton Formation, lower part (Middle Ordovician) > >----------------------------------------------------------------- >Database structure of 'CasonShale': >----------------------------------------------------------------- >Field Name Data Type >OBJECTID Object ID >SHAPE Geometry > >Geometry Type-Point >Unit Text > >Length-50 >Description Text > >Length-100 > > >Descriptions of user-defined database items in 'CasonShale': >Unit: Abbreviated name of map unit >Description: Name of map unit and geologic age > >Unique item list for 'CasonShale': >Unit Description >Oc Cason Shale (Upper Ordovician) > >------------------------------------------------------------------ >Database structure of 'contacts': >------------------------------------------------------------------ > >Field Name Data Type >OBJECTID Object ID >SHAPE Geometry > >Geometry Type-Line >Description Text > >Length-100 >SHAPE_Length Double > > >Description of user-defined database items in 'contacts': >Description: standard description of line type taken from Digital >Cartographic Standard > >Unique item list for 'contacts': >Description >Contact - Certain > >------------------------------------------------------------------ >Database structure of 'faults': >------------------------------------------------------------------ > >Field Name Data Type >OBJECTID Object ID >SHAPE Geometry > >Geometry Type-Line >SHAPE_Length Double >Description Text > >Length-100 >Faultname Text > >Length-100 > > >Description of user-defined database items in 'faults': >Description: standard description of line type taken from >Digital Cartographic Standard >Faultname: informal name given to fault > >Unique item list for 'faults': >Description >Normal fault - Certain >Normal fault - Approximately located >Normal fault - Concealed >Fault - Approximately located >Strike-slip fault, right lateral offset - Certain >Strike-slip fault, right lateral offset - Approximately located > >Faultname >Confederate fault >Davy Crockett fault >Mill Creek fault >South Tomahawk fault >Tomahawk fault >St. Joe fault >West Mountain fault > >------------------------------------------------------------------ >Database structure of 'folds': >------------------------------------------------------------------ > >Field Name Data Type >OBJECTID Object ID >SHAPE Geometry > >Geometry Type-Line >SHAPE_Length Double >Description Text > >Length-100 >Foldname Text > >Length-100 > > >Description of user-defined database items in 'folds': >Description: standard description of line type taken from >Digital Cartographic Standard >Foldname: informal name given to fold > >Unique item list for 'folds': >Description >Anticline - Certain >Syncline - Certain >Monocline - Certain > >Foldname >Baker Spring monocline >------------------------------------------------------------------ >Database structure of 'strcnt_Mb': >------------------------------------------------------------------ > >Field Name Data Type >OBJECTID Object ID >SHAPE Geometry > >Geometry Type-Line >Shape_Length Double >elevation Short Integer > > >Description of user-defined database items in 'strcnt_Mb': >elevation: elevation of line, in feet > >Unique item list for 'strcnt_Mb': >elevation >250 - 1250 > >------------------------------------------------------------------ >Database structure of 'Boundary': >------------------------------------------------------------------ > > Field Name Data Type >OBJECTID Object ID >SHAPE Geometry > >Geometry Type-Line >Description Text > >Length-25 >Shape_Length Double > > >Description of user-defined database items in 'Boundary': >Description: standard description of line type taken from Digital >Cartographic Standard > >Unique item list for 'Boundary': >Description >Map boundary > >------------------------------------------------------------------ >Database structure of 'crosssection': >------------------------------------------------------------------ > > Field Name Data Type >OBJECTID Object ID >SHAPE Geometry >SHAPE_Length Double >Description Text > >Length-25 > > >Description of user-defined database items in 'crosssection': >Description: cross-section line identifier > >Unique item list for 'crosssection': >Description >Cross-section line A-A' >Cross-section line B-B' > >------------------------------------------------------------------ >Database structure of 'attitudes_flat': >------------------------------------------------------------------ > >Field Name Data Type >OBJECTID Object ID >SITE Text > >Length-6 >STRIKE Long Integer >DIP Short Integer >Y Double >X Double >Shape Geometry > >Geometry Type-Point > > >Description of user-defined database items in 'attitudes_flat': >SITE: unique identifier for site >STRIKE: azimuth of bedding strike >DIP: angle of dip in degrees from horizontal >Y: Latitude value for site, in decimal degrees >X: Longitude value for site, in decimal degrees > >Unique item list for 'attitudes_flat': >STRIKE >1-360 >DIP >0 > >------------------------------------------------------------------ >Database structure of 'attitudes_inclined': >------------------------------------------------------------------ > > Field Name Data Type >OBJECTID Object ID >SITE Text > >Length-6 >STRIKE Long Integer >DIP Short Integer >Y Double >X Double >Shape Geometry > >Geometry Type-Point > > >Description of user-defined database items in 'attitudes_inclined': >SITE: unique identifier for site >STRIKE: azimuth of bedding strike >DIP: angle of dip in degrees from horizontal >Y: Latitude value for site, in decimal degrees >X: Longitude value for site, in decimal degrees > >Unique item list for 'attitudes_inclined': >STRIKE >1-360 degrees >DIP >2-86 > >------------------------------------------------------------------ >Database structure of 'cntrlpts_Mb': >------------------------------------------------------------------ > >Field Name Data Type >OBJECTID Object ID >Shape Geometry > >Geometry Type-Point >SITE Text > >Length-6 >Y Double >X Double >ELEVATION Long Integer > > >Description of user-defined database items in 'cntrlpts_Mb': >SITE: unique identifier for site >Y: Latitude value for site, in decimal degrees >X: Longitude value for site, in decimal degrees >ELEVATION: Elevation of site, in feet > >Unique item list for 'cntrlpts_Mb': >ELEVATION >765-1250 > >------------------------------------------------------------------ >Database structure of 'cntrlpts_Mbv': >------------------------------------------------------------------ > >Field Name Data Type >OBJECTID Object ID >Shape Geometry > >Geometry Type-Point >SITE Text > >Length-6 >Y Double >X Double >ELEVATION Long Integer > > >Description of user-defined database items in 'cntrlpts_Mb': >SITE: unique identifier for site >Y: Latitude value for site, in decimal degrees >X: Longitude value for site, in decimal degrees >ELEVATION: Elevation of site, in feet > >Unique item list for 'cntrlpts_Mb': >ELEVATION >705-1165 > >------------------------------------------------------------------ >Database structure of 'faultdip': >------------------------------------------------------------------ > >Field Name Data Type >OBJECTID Object ID >Shape Geometry > >Geometry Type-Point >SITE Text > >Length-50 >FAULTAZIMUTH Short Integer >FAULTDIP Short Integer > > >Description of user-defined database items in 'faultdip': >SITE: unique identifier for site >FAULTAZIMUTH: azimuth value for dip direction for fault plane >FAULTDIP: dip of fault plane in degrees from horizontal > >Unique item list for 'faultdip': >FAULTAZIMUTH FAULTDIP >172 86 >193 65 >3 74 >352 74 >250 85 Entity_and_Attribute_Detail_Citation: none Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Address: Address_Type: Mailing Address Address: Publications Service Center U.S. Geological Survey Box 25046, MS 902, DFC City: Denver State_or_Province: Colorado Postal_Code: 80225 Country: USA Contact_Voice_Telephone: 303-236-5486 Distribution_Liability: This database, identified as SIM-3074, has been approved for release and publication by the Director of the 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. Furthermore, it is released on condition that neither the USGS nor the United States Government may be held liable for any damages resulting from its authorized or unauthorized use. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: ArcGis Geodatabase ArcView Shape Files Format_Version_Number: 9.2 File_Decompression_Technique: ZIP archive (Windows) Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://pubs.usgs.gov/sim/3074 Fees: None Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Address: Address_Type: Mailing Address Address: USGS Information Services Box 25286 City: Denver State_or_Province: Colorado Postal_Code: 80225 Country: USA Contact_Voice_Telephone: 1-(888)-ASK-USGS Resource_Description: Scientific Investigations Map-3074 (Map-on-Demand) Distribution_Liability: None Standard_Order_Process: Non-digital_Form: Available as one printed sheet. Order from USGS at address above or see http://store.usgs.gov/mod/order.html for more ordering information Fees: For current prices see: http://store.usgs.gov/mod/order.html Metadata_Reference_Information: Metadata_Date: 2008 Metadata_Review_Date: 2008 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: Kenzie J. Turner Contact_Address: Address_Type: Mailing Address Address: Box 25046, MS 980, DFC City: Denver State_or_Province: Colorado Postal_Code: 80225 Country: USA Contact_Voice_Telephone: 303-236-4610 Contact_Facsimile_Telephone: 303-236-5349 Contact_Electronic_Mail_Address: kturner@usgs.gov Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata ("CSDGM version 2") Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Access_Constraints: none Metadata_Use_Constraints: none