Metadata: Identification_Information: Citation: Citation_Information: Originator: Rhea, Susan Publication_Date: 1997 Title: Seismotectonic maps in the vicinity of the lower Wabash Valley, Illinois, Indiana, and Kentucky - Digital Spatial Database: magnetic dikes Geospatial_Data_Presentation_Form: map Series_Information: Series_Name: U.S. Geological Survey Open-File Report Issue_Identification: 97-0681 Publication_Information: Publication_Place: Denver Publisher: U.S. Geological Survey Online_Linkage: Description: Abstract: Hildenbrand and Ravat (1997) inferred the locations of near-surface dikes from analyses of high-resolution aeromagnetic data. The lines represent locations of magnetic highs that they interpreted as dikes. Modeling indicates the dikes are vertical, extend to within 200 m of the surface, and have the magnetic properties of mafic or ultramafic rock. Some of the interpreted dikes coincide with the easternmost Early Permian, mica peridotite and perhaps lamprophyre dikes that Nelson mapped (these are in cover lampdike.) Hildenbrand and Ravat concluded that the interpreted dikes are also probably Early Permian ultramafic intrusions. Purpose: The data was generated to help in understanding the seismotectonic hazards in the vicinity of the lower Wabash Valley. This data complements similar data collected in the vicinity of New Madrid, MO (US Geological Survey Open-File Report 95-0574, available via ftp at ) Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 1996 Ending_Date: 1996 Currentness_Reference: Hildenbrand publication date Status: Progress: complete Maintenance_and_Update_Frequency: none planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -88.42851257 East_Bounding_Coordinate: -87.9046402 North_Bounding_Coordinate: 38.00849915 South_Bounding_Coordinate: 37.35390854 Keywords: Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: magnetic basement Place: Place_Keyword_Thesaurus: None Place_Keyword: Wabash Valley Access_Constraints: none Use_Constraints: none Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Susan Rhea Contact_Organization: US Geological Survey Contact_Position: Geophysicist Contact_Address: Address_Type: mailing address Address: MS966, Box 25046, Federal Center City: Denver State_or_Province: CO Postal_Code: 80225 Country: USA Contact_Voice_Telephone: 303-273-8639 Contact_Facsimile_Telephone: 303-273-8600 Contact_Electronic_Mail_Address: rhea@usgs.gov Contact_Instructions: email is the best way to make contact Data_Set_Credit: Hildenbrand Native_Data_Set_Environment: SunOS, 5.5.1, sun4u UNIX, ARC/INFO version 7.1.1 Cross_Reference: Citation_Information: Originator: Wheeler, R.L., Rhea, Susan, and Diehl, S.F., Drahovzal, J.A., Bear, G.W., and Sargent, M.L. Publication_Date: 1997 Title: Seismotectonic map showing faults, igneous rocks, and geophysical and neotectonic features in the vicinity of the lower Wabash Valley, Illinois, Indiana, and Kentucky Geospatial_Data_Presentation_Form: map Series_Information: Series_Name: U.S. Geological Survey Investigations Map Issue_Identification: I-2583-D Publication_Information: Publication_Place: Denver Publisher: U.S. Geological Survey Other_Citation_Details: pamphlet accompanies map Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: No attribute data are present. Logical_Consistency_Report: Chain-node topology present. Completeness_Report: all data sent is included Positional_Accuracy: Horizontal_Positional_Accuracy: Quantitative_Horizontal_Positional_Accuracy_Assessment: Horizontal_Positional_Accuracy_Value: 10 km Horizontal_Positional_Accuracy_Explanation: Resolution as reported Lineage: Source_Information: Source_Citation: Citation_Information: Originator: Hildenbrand, T.G. Publication_Date: 1996 Title: written communication Source_Information: Source_Citation: Citation_Information: Originator: Hildenbrand, T.G., and Ravat, Dhananjay Publication_Date: 1997 Title: Geophysical setting of the Wabash Valley Fault System Series_Information: Series_Name: Seismological Research Letters Issue_Identification: Vol 68 Publication_Information: Publisher: Seismological Society of America Other_Citation_Details: p 47 Source_Scale_Denominator: 500000 Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1996 Source_Currentness_Reference: publication date Source_Contribution: digital coordinates Process_Step: Process_Description: Decimal degree coordintates were sent via email and converted to arcinfo. Process_Date: 19960619 Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Vector Point_and_Vector_Object_Information: SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: Point Point_and_Vector_Object_Count: 0 SDTS_Point_and_Vector_Object_Type: String Point_and_Vector_Object_Count: 85 SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains Point_and_Vector_Object_Count: 0 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Geographic: Latitude_Resolution: .001 Longitude_Resolution: .001 Geographic_Coordinate_Units: Decimal Degrees Geodetic_Model: Horizontal_Datum_Name: Unknown 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: Line attributes given are only those created by ARC/INFO. Entity_and_Attribute_Detail_Citation: USGS OFR 97-0681 Distribution_Information: Distributor: Contact_Information: Contact_Person_Primary: Contact_Person: Susan Rhea Contact_Organization: US Geological Survey Contact_Position: Geophysicist Contact_Address: Address_Type: mailing address Address: USGS Mail Stop 966 Box 25046, Federal Center City: Denver State_or_Province: CO Postal_Code: 80225-0046 Country: USA Contact_Voice_Telephone: 303-273-8639 Contact_Facsimile_Telephone: 303-273-8600 Contact_Electronic_Mail_Address: rhea@usgs.gov Contact_Instructions: Email is the best way to make contact. Resource_Description: USGS Open-File Report 97-0681 Distribution_Liability: This report is preliminary and has not been reviewed for conformity with U.S. Geological Survey editorial standards and stratigraphic nomenclature. Any use of trade names is for descriptive purposes only and does not imply endorsement by the USGS. Technical_Prerequisites: ARC/INFO version 7.0.3 or later or ArcView 3.0 or later Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: ARCE Format_Version_Number: 7.0.3 Format_Information_Content: Each coverage contains isoseismal data for one event (two for i187609) File_Decompression_Technique: Files may be compressed with gzip; use gzip -d or gunzip to uncompress. Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: ftp://greenwood.cr.usgs.gov/pub/open-file-reports/ofr-97-0681/e00_files/magdike.e00 Online_Computer_and_Operating_System: Data General AViiON 6220 running DG/UX 5.4R3.10 (Unix) Fees: none Metadata_Reference_Information: Metadata_Date: 19980506 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Susan Rhea Contact_Organization: US Geological Survey Contact_Position: Geophysicist Contact_Address: Address_Type: mailing address Address: MS966, Box 25046, Federal Center City: Denver State_or_Province: CO Postal_Code: 80225 Country: USA Contact_Voice_Telephone: 303-273-8639 Contact_Facsimile_Telephone: 303-273-8600 Contact_Electronic_Mail_Address: rhea@usgs.gov Contact_Instructions: email is the best way to make contact Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata Metadata_Standard_Version: 19940608