Nebraska Test Hole Database
Geologic Log Metadata:
- Identification_Information:
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- Citation:
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- Citation_Information:
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- Originator:
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Conservation & Survey Division, University of Nebraska-Lincoln (CSD)
- Publication_Date: 2007
- Title: Nebraska Test Hole Database
- Edition: 1.0
- Geospatial_Data_Presentation_Form: Tabular digital data
- Publication_Information:
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- Publication_Place: Lincoln, NE
- Publisher:
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Conservation & Survey Division, University of Nebraska-Lincoln (CSD)
- Online_Linkage: <http://csd.unl.edu/general/gis-datasets.asp>
- Description:
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- Abstract:
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From the early 1930's to the present, the University of Nebraska-Lincoln Conservation and Survey Division (CSD) has drilled 'test holes' to examine the geology and hydrogeology of Nebraska. On-site sample description and collection of samples for analysis are major parts of the 'survey' mission. Over 5000 wells have been drilled as part of the test hole program. CSD geoscientists described the drilling logs in detail on-site. Reworking of the log and description are common, as staff and abilities change. This database emphasizes spatially referenced lighologic and stratigraphic data for the state.
- Purpose:
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To provide spatially referenced geologic data for the state of Nebraska.
- Time_Period_of_Content:
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- Time_Period_Information:
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- Range_of_Dates/Times:
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- Beginning_Date: 1931
- Ending_Date: Present
- Currentness_Reference:
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The beginning date was determined from the earliest year identified in the test hole log books. The drilling efforts are on-going. This version of the database was finalized in early 2007.
- Status:
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- Progress: In work
- Maintenance_and_Update_Frequency: As needed
- Spatial_Domain:
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- Bounding_Coordinates:
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- West_Bounding_Coordinate: -104.052016
- East_Bounding_Coordinate: -95.381093
- North_Bounding_Coordinate: 43.998818
- South_Bounding_Coordinate: 40.000349
- Keywords:
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- Theme:
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- Theme_Keyword_Thesaurus: ESRI
- Theme_Keyword: geoscientificInformation
- Theme:
-
- Theme_Keyword_Thesaurus: none
- Theme_Keyword: Stratigraphy
- Theme_Keyword: Lithology
- Theme_Keyword: Hydrology
- Theme_Keyword: Groundwater
- Theme_Keyword: Geology
- Place:
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- Place_Keyword_Thesaurus: none
- Place_Keyword: Nebraska
- Access_Constraints: None
- Use_Constraints:
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The data are the intellectual property of the University of Nebraska. The data may not be redistributed without permission to do so by the person(s) or unit listed as the Originator(s). In any product, including data, publications, or presentations generated using these data, it is required that the Conservation and Survey Division, University of Nebraska - Lincoln be acknowledged. Please include the following source citation: "Test holes drilled in Nebraska by the Conservation and Survey Division, University of Nebraska-Lincoln (CSD), for the study of geology.
- Point_of_Contact:
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- Contact_Information:
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- Contact_Organization_Primary:
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- Contact_Organization:
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Conservation & Survey Division, University of Nebraska-Lincoln (CSD)
- Contact_Position: GIS Manager
- Contact_Address:
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- Address_Type: mailing address
- Address:
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Hardin Hall
3310 Holdrege Street
- City: Lincoln
- State_or_Province: NE
- Postal_Code: 68583-0961
- Country: USA
- Contact_Voice_Telephone: 402-472-3471
- Contact_Facsimile_Telephone: 402-472-2410
- Contact_Electronic_Mail_Address: gismanager@unl.edu
- Hours_of_Service: 8:00-5:00 Central Time
- Contact_Instructions: Business is conducted Monday-Friday, except holidays
- Browse_Graphic:
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- Browse_Graphic_File_Name: <http://csd.unl.edu/general/metadata/thumbnails/tn_testholes.jpg>
- Browse_Graphic_File_Description: Test hole location
- Browse_Graphic_File_Type: JPEG
- Native_Data_Set_Environment:
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MS Access
ArcInfo in a Windows environment; versions very with data set.
- Data_Quality_Information:
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- Attribute_Accuracy:
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- Attribute_Accuracy_Report:
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Testholes were initially located using legal description and footages from known points. The database coordinates were derived from a program that converts legal descriptions to latitude and longitude. Using ArcInfo GIS software, the point locations were plotted on 1:50,000 scale county maps and accuracy was checked against the original test hole logs. Any decrepancies were checked and edited accordingly. If a test hole was "relocated", the location was edited using ArcInfo. Once all points were properly located, the 'addxy' command was excecuted in ArcInfo to add the current and correct coordinates to the county GIS layer. County layers were then merged to form a statewide layer.
- Logical_Consistency_Report:
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Records in the database have been checked against the original test hole log books
- Completeness_Report: The database is statewide and updated as needed
- Lineage:
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- Source_Information:
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- Source_Citation:
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- Citation_Information:
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- Originator:
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Conservation & Survey Division, University of Nebraska-Lincoln (CSD)
- Publication_Date: 2007
- Title: Nebraska Statewide Test Hole Database
- Edition: 1.0
- Geospatial_Data_Presentation_Form: Tabular digital data
- Publication_Information:
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- Publication_Place: Lincoln, NE
- Publisher:
-
Conservation & Survey Division, University of Nebraska-Lincoln (CSD)
- Type_of_Source_Media: Online
- Source_Time_Period_of_Content:
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- Time_Period_Information:
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- Range_of_Dates/Times:
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- Beginning_Date: 1930
- Ending_Date: Present
- Source_Currentness_Reference: publication date
- Source_Citation_Abbreviation: CSD test hole logs
- Source_Contribution:
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Information from the original test hole logs was used to develop this database
- Process_Step:
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- Process_Description:
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Testholes were initially located using legal description and footages from known points. The database coordinates were derived from a program that converts legal descriptions to latitude and longitude. Using ArcInfo GIS software, the point locations were plotted on 1:50,000 scale county maps and accuracy was checked against the original test hole logs. Any decrepancies were checked and edited accordingly. If a test hole was "relocated", the location was edited using ArcInfo. Once all points were properly located, the 'addxy' command was excecuted in ArcInfo to add the current and correct coordinates to the county GIS layer. County layers were then merged to create a statewide layer.
- Source_Used_Citation_Abbreviation: CSD test hole log books
- Process_Date: 2006
- Process_Contact:
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- Contact_Information:
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- Contact_Organization_Primary:
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- Contact_Organization:
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Conservation & Survey Division, University of Nebraska-Lincoln (CSD)
- Contact_Position:
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Jerry Ayers
Hydrogeologist
- Contact_Address:
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- Address_Type: mailing address
- Address:
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Hardin Hall
3310 Holdrege Street
- City: Lincoln
- State_or_Province: NE
- Postal_Code: 68583-0961
- Country: USA
- Contact_Voice_Telephone: 402-472-3471
- Contact_Facsimile_Telephone: 402-472-2410
- Contact_Electronic_Mail_Address: gismanager@unl.edu
- Hours_of_Service:
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8:00-5:00 M-F Central Time
except holidays
- Spatial_Data_Organization_Information:
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- Direct_Spatial_Reference_Method: Point
- Point_and_Vector_Object_Information:
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- SDTS_Terms_Description:
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- SDTS_Point_and_Vector_Object_Type: Entity point
- Point_and_Vector_Object_Count: 5432
- Spatial_Reference_Information:
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- Horizontal_Coordinate_System_Definition:
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- Geographic:
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- Latitude_Resolution: 0.000001
- Longitude_Resolution: 0.000001
- Geographic_Coordinate_Units: Decimal degrees
- Entity_and_Attribute_Information:
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- Detailed_Description:
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- Entity_Type:
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- Entity_Type_Label: GeoLog
- Entity_Type_Definition: Geologic log of CSD test holes
- Entity_Type_Definition_Source: CSD
- Attribute:
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- Attribute_Label: LogID
- Attribute_Definition: Name used to identify individual test holes
- Attribute_Definition_Source: CSD
- Attribute_Domain_Values:
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- Unrepresentable_Domain: Unique test hole identification
- Attribute:
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- Attribute_Label: Dep
- Attribute_Definition: Depth in feet that the measurement was taken
- Attribute_Definition_Source: CSD
- Attribute_Domain_Values:
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- Unrepresentable_Domain: Unique value representing the logging depth in feet
- Attribute:
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- Attribute_Label: Cal
- Attribute_Definition: Caliper measurement in inches
- Attribute_Definition_Source: CSD
- Attribute_Domain_Values:
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- Unrepresentable_Domain:
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Unique value representing the measured borehole diamter in inches
- Attribute:
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- Attribute_Label: Nat_Gam
- Attribute_Definition: Natural gamma measurement of the formation in API gamma counts
- Attribute_Definition_Source: CSD
- Attribute_Domain_Values:
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- Unrepresentable_Domain: Unique value representing the natural gamma radiation count
- Attribute:
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- Attribute_Label: SP
- Attribute_Definition:
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Spontaneous potential measurement of the formation in millivolts
- Attribute_Definition_Source: CSD
- Attribute_Domain_Values:
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- Unrepresentable_Domain:
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Unique value representing the spontaneous potential in millivolts
- Attribute:
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- Attribute_Label: Res_SnglPt
- Attribute_Definition: Single point resistance measurement of the formation in ohms
- Attribute_Definition_Source: CSD
- Attribute_Domain_Values:
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- Unrepresentable_Domain: Unique value representing the single point resistance in ohms
- Attribute:
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- Attribute_Label: Res_16
- Attribute_Definition: 16-inch resistivity measurement of the formation in ohm-m
- Attribute_Definition_Source: CSD
- Attribute_Domain_Values:
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- Unrepresentable_Domain:
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Unique value representing the 16-inch normal resistivity in ohm-m
- Attribute:
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- Attribute_Label: Res_64
- Attribute_Definition: 64-inch resistivity measurement of the formation in ohm-m
- Attribute_Definition_Source: CSD
- Attribute_Domain_Values:
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- Unrepresentable_Domain:
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Unique value representing the 64-inch normal resistivity on ohm-m
- Attribute:
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- Attribute_Label: Res_Lat
- Attribute_Definition: Lateral resistivity measurement of the formation in ohm-m
- Attribute_Definition_Source: CSD
- Attribute_Domain_Values:
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- Unrepresentable_Domain: Unique value representing lateral resistivity in ohm-m
- Attribute:
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- Attribute_Label: Sp_Cond
- Attribute_Definition: Specific conductance measurement of the borehole fluid in us/cm
- Attribute_Definition_Source: CSD
- Attribute_Domain_Values:
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- Unrepresentable_Domain:
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Unique value representing specific conductance of borehole fluid in us/cm
- Attribute:
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- Attribute_Label: Res_FL
- Attribute_Definition: Resistivity of the borehole fluid in ohm-m
- Attribute_Definition_Source: CSD
- Attribute_Domain_Values:
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- Unrepresentable_Domain: Unique value representing borehole fluid resistivity in ohm-m
- Attribute:
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- Attribute_Label: Tmp_FL
- Attribute_Definition: Temperature of the borehole fluid in degrees F
- Attribute_Definition_Source: CSD
- Attribute_Domain_Values:
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- Unrepresentable_Domain:
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Unique value representing borehole fluid temperature in degrees F
- Attribute:
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- Attribute_Label: Del_Tmp
- Attribute_Definition: Differential temperature of the borehold fluid in degrees F
- Attribute_Definition_Source: CSD
- Attribute_Domain_Values:
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- Unrepresentable_Domain:
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Unique value representing temperature difference of borehole fluid in degrees F
- Overview_Description:
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- Entity_and_Attribute_Overview:
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Attributes found within the GeoLog table include: LogID, Dep, Cal, Nat_Gam, SP, Res_SnglPt, Res_16, Res_64, Res_Lat, SP_Cond, Res_FL, Tmp_FL, Del_Tmp.
- Entity_and_Attribute_Detail_Citation: None
- Distribution_Information:
-
- Distributor:
-
- Contact_Information:
-
- Contact_Organization_Primary:
-
- Contact_Organization:
-
Conservation & Survey Division, University of Nebraska-Lincoln (CSD)
- Contact_Position: GIS Manager
- Contact_Address:
-
- Address_Type: mailing address
- Address:
-
Hardin Hall
3310 Holdrege Street
- City: Lincoln
- State_or_Province: NE
- Postal_Code: 68583-0961
- Country: USA
- Contact_Voice_Telephone: 402-472-3471
- Contact_Facsimile_Telephone: 402-472-2410
- Contact_Electronic_Mail_Address: gismanager@unl.edu
- Hours_of_Service: 8:00-5:00 M-F Central Time
- Contact_Instructions: Business is conducted Monday-Friday, except holidays
- Resource_Description: Downloadable Data
- Distribution_Liability:
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The Conservation and Survey Division, University of Nebraska-Lincoln has produced this product using what is thought to be the most reliable information available or reproduced the material as provided. The detail and precision of the interpretations made are according to accepted professional standards and are dependent upon the techicques, hardware, and/or software utilized. The user must be aware of data conditions and bear responsibility for the appropriate use of the information with respect to possible errors, original map scale, collection methodology, currency of data and other conditions specific to certain data. No warranty expressed or implied is made by the University of Nebraska regarding the positional or attribute accuracy or utility of this information. The act of distribution shall not constitute any such warranty and no responsibility is assumed by the University of Nebraska in the use of the data.
- Standard_Order_Process:
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- Digital_Form:
-
- Digital_Transfer_Information:
-
- Format_Name:
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ARCE
MS Access
- File_Decompression_Technique: No compression applied
- Transfer_Size: 275
- Digital_Transfer_Option:
-
- Online_Option:
-
- Computer_Contact_Information:
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- Network_Address:
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- Network_Resource_Name: <http://csd.unl.edu/general/gis-datasets.asp>
- Online_Computer_and_Operating_System: Varies
- Offline_Option:
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- Offline_Media: CD-ROM
- Recording_Format: Varies
- Compatibility_Information: Varies
- Fees:
-
No fee for online downloads. Fees may apply in other cases depending on media and processing time.
- Ordering_Instructions: E-mail, FAX or write with request. Letterhead preferred.
- Turnaround: varies with media
- Custom_Order_Process: Written request, billed as Time & Materials
- Technical_Prerequisites: Must be able to process ArcInfo export format files
- Available_Time_Period:
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- Time_Period_Information:
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- Range_of_Dates/Times:
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- Beginning_Date: 1931
- Ending_Date: 2007
- Metadata_Reference_Information:
-
- Metadata_Date: 200703
- Metadata_Contact:
-
- Contact_Information:
-
- Contact_Organization_Primary:
-
- Contact_Organization:
-
Conservation & Survey Division, University of Nebraska-Lincoln (CSD)
- Contact_Person: GIS Manager
- Contact_Position: GIS Manager
- Contact_Address:
-
- Address_Type: mailing address
- Address:
-
Hardin Hall
3310 Holdrege Street
- City: Lincoln
- State_or_Province: NE
- Postal_Code: 68583-0961
- Country: USA
- Contact_Voice_Telephone: 402-472-3471
- Contact_Facsimile_Telephone: 402-472-2410
- Contact_Electronic_Mail_Address: rsimpson2@unl.edu
- Hours_of_Service:
-
8:00-5:00 Central Time
except holidays
- Contact_Instructions: Contact by e-mail recommended.
- 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:
-
This metadata file is intended to accompany the geospatial data set identified and received from the Conservation and Survey Division, University of Nebraska-Lincoln. It is not to be altered or summarized. CSD does not encourage secondary distribution of data. If this geospatial data set was received from anyone besides CSD, this metadata file and the geospatial data set it describes may lack integrity.
Generated by mp version 2.9.1 on Thu May 10 13:16:13 2007