Unconsolidated Sediment Thickness (sedthicks - see Supplemental Information for full title)

Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: Char, Stephen J., Sieverling, Jennifer B., and Miller, L. Lee
Publication_Date: 19960000
Title:
Unconsolidated Sediment Thickness (sedthicks - see Supplemental Information for full title)
Edition: 1
Geospatial_Data_Presentation_Form: Downloadable GIS Data
Publication_Information:
Publisher: U.S. Geological Survey
Online_Linkage: http://pubs.usgs.gov/ds/2006/193/
Larger_Work_Citation:
Citation_Information:
Originator: Char, Stephen J., Sieverling, Jennifer B., and Miller, L. Lee
Publication_Date: 19960000
Title:
Unconsolidated Sediment Thickness (see Supplemental Information for full title)
Edition: 1
Geospatial_Data_Presentation_Form: at: map
Series_Information:
Series_Name: Open-File Report
Issue_Identification: 96659
Publication_Information:
Publication_Place: Denver, Colorado
Publisher: U.S. Geological Survey
Online_Linkage: http://co.water.usgs.gov/frirp/water_project
Description:
Abstract:
This digital geospatial data set consists of digitized contours
of unconsolidated-sediment thickness (depth to bedrock).  These
contours were originally manually drawn at an interval of 20 feet.
The U.S. Geological Survey developed this data set as part of a
project that is presented in the report, Geohydrology of the shallow
aquifers in the Denver metropolitan area, Colorado (Robson, 1996).
Purpose:
This data set was created by the U.S. Geological Survey (USGS) in
the development of USGS Hydrologic Investigations Atlas HA-736 (Robson,
1996).  This data set was used in the creation of a 1:50,000-scale
contour map.  It also was used as an input source (along with data
sets of bedrock-outcrop polygons and point data) for the automated
generation of surface of unconsolidated-sediment thickness, also
contoured for use in a 1:50,000-scale map.
Supplemental_Information:
Procedures_Used
Unconsolidated-sediment thickness data from well logs (see "Refer-
ences Cited" section) were manually plotted and contoured onto
mylar overlays of 20 paper USGS 7.5-minute topographic series
quadrangle maps that encompass the Denver metropolitan area.
These maps were the Arvada, Box Elder School, Brighton, Commerce
City, Coal Creek, Eastlake, Englewood, Fitzsimons, Fort Logan,
Golden, Highlands Ranch, Indian Hills, Lafayette, Littleton,
Louisville, Mile High Lakes, Morrison, Parker, Piney Creek, and
Sable quadrangles. The contours from these maps were digitized into
20 corresponding digital geospatial data sets, known as coverages
in ARC/INFO-specific terminology.  The coverages were in the poly-
conic projection specific to each quadrangle: the central meridian
was the longitude of the center of the quadrangle, and the latitude
of the origin was the latitude of the bottom of the quadrangle.
Registration root mean square errors of 0.008 inches or less were
acceptable for the digitization process.  Drafts of these coverages
were then plotted at a scale of 1:24,000, checked against the
original mylar overlays, and corrected for omissions and locational
errors.  Arc items "CONTOUR" and "DASH" were added to the arc
attribute table of the coverage and manually attributed in Arcedit,
using the original manuscript mylars for references.  The coverages
were then projected into a common state plane projection and
edgematched.

The northern and eastern areas of each coverage were edgematched
when necessary.  The northern edge of a coverage was adjusted to
fit the southern edge of a coverage adjacent to the north; the
eastern edge of a coverage was adjusted to fit the western edge of
a coverage adjacent to the east.

The coverages were appended into a single coverage that was then
cleaned with an arc dangle tolerance of 12.192 feet and a fuzzy
tolerance of 1.2192 feet.  The coverage was built with line topology.
Arc items "TEXTKEY" and "DEPRESSION" were added to the arc attribute
table of the coverage and manually attributed in Arcedit, using
hardcopy and base map overlays for references.  The coverage was
plotted at 1:50,000, checked, and corrected.

The final coverage is intended to be used as one thematic layer in
a map to be published at a scale of 1:50,000.

Revisions
Revision 1.0, 09/16/94, original data set.

Reviews_Applied
July-August 1994:  Colleague review of 1:50,000-scale maps that
were generated from the original data set.  Manuscript review
included validation of method as outlined in map report and
inspection for positional accuracy.

January-Febuary 1996:  Colleague review of original digital data
set and associated metadata.  Metadata review included verification
of table and column/item identities and definitions, validation of
the reference data sets and citations, verification of consistency
between log file and documented procedures, and validation of
development method as described in the documentation.

March 1996:  Inspection of 1:50,000-scale hardcopy generated from
this data set.

Related_Spatial_and_Tabular_Data_Sets
None.

Other_References_Cited
Robson, S.G. 1996, Geohydrology of the shallow aquifers in
the Denver metropolitan area, Colorado: U.S. Geological
Survey Hydrologic Investigations Atlas HA-736, 5 sheets,
scale 1:50,000.

Notes
Char, Stephen J., Sieverling, Jennifer B., and Miller, L. Lee,
1996, Digital geospatial data sets used in the study of
geohydrology of the shallow aquifers in the Denver metro-
politan area, Colorado: a)Bedrock outcrop, b)Unconsolidated-
sediment thickness, c)Water-table altitude, d)Bedrock-
surface altitude, e)Depth to water, and f)Saturated-zone
thickness: U.S. Geological Survey Open-File Report 96-659.

Any use of trade, product or firm names is for descriptive purposes
only and does not imply endorsement by the U.S. Government.

Although this metadata file is designed to conform to the Federal
Geographic Data Committee Spatial Metadata Content Standard, these
data and this metadata file were developed using ARC/INFO software;
therefore, this file includes ARC/INFO-specific terminology.

Data used to develop this project were obtained from many sources,
including the following:

Cherry Creek Valley Water and Sanitation District
City of Brighton
Colorado Department of Health
Colorado Department of Highways
Colorado State Engineers Office
Cooley Sand and Gravel
Denver Federal Center
Denver Water Department
EG&G Rocky Flats Incorporated
Environmental Protection Agency (Superfund)
Frei & Sons (Sand and Gravel)
HRS Consultants
Lowry Air Force Base
Metro Denver Wastewater Reclamation District
Public Service Company
Rocky Mountain Arsenal
U.S. Army Corps of Engineers
Urban Drainage and Flood Control
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 19960000
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned.
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -105.25090824
East_Bounding_Coordinate: -104.71195285
North_Bounding_Coordinate: 40.00236461
South_Bounding_Coordinate: 39.56459226
Keywords:
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: Colorado, Denver, depth-to-bedrock, overburden, aquifer, geology, hydrology
Theme:
Theme_Keyword_Thesaurus: ArcIMS Metadata Server Theme Codes
Theme_Keyword: geoscientificInformation
Theme_Keyword: environment
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: Denver, Colorado metropolitan area, United States
Stratum:
Stratum_Keyword_Thesaurus: None
Temporal:
Temporal_Keyword_Thesaurus: None
Access_Constraints: N/A.
Use_Constraints:
This data set should not be used at a scale larger than 1:50,000.
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey, Water Resources Division
Contact_Person: Colorado District Chief
Contact_Position: Colorado District Chief
Contact_Address:
Address_Type: mailing address
Address:
Box 25046, MS 415, Denver Federal Center
City: Lakewood
State_or_Province: Colorado
Postal_Code: 80225-0046
Country: United States of America
Contact_Voice_Telephone: 303-236-4882
Contact_Facsimile_Telephone: 303-236-4912
Contact_Electronic_Mail_Address: dc_co@usgs.gov
Hours_of_Service: 8:00am - 4:30pm
Browse_Graphic:
Browse_Graphic_File_Name: http://certmapper.cr.usgs.gov/data/frip/graphic/sedthicks.jpg
Browse_Graphic_File_Type: JPEG
Data_Set_Credit:
U.S. Army--Rocky Mountain Arsenal
U.S. Department of Energy--Rocky Flats Field Office
Colorado Department of Public Health and Environment
Colorado Department of Natural Resources--State Engineers Office
Denver Water Department
Littleton-Englewood Wastewater Treatment Plant
East Cherry Creek Valley Water and Sanitation District
Metro Wastewater Reclamation District
Willows Water District
Cities of Aurora, Lakewood, and Thornton
Security_Information:
Security_Classification_System: None
Security_Classification: Unclassified
Security_Handling_Description: None
Native_Data_Set_Environment:
dgux UNIX, ARC/INFO version 7.0.4
Cross_Reference:
Citation_Information:
Originator: Char, Stephen J., Sieverling, Jennifer B., and Miller, L. Lee
Publication_Date: 19960000
Publication_Time: 0000
Title:
Bedrock outcrop (see Supplemental Information Notes for a complete citation)
Edition: 1
Geospatial_Data_Presentation_Form: map
Series_Information:
Series_Name: Open-File Report
Issue_Identification: 96659
Publication_Information:
Publication_Place: Denver, Colorado
Publisher: U.S. Geological Survey
Other_Citation_Details:
OFR 96-659A
Online_Linkage: http://co.water.usgs.gov/frirp/water_project/
Larger_Work_Citation:
Cross_Reference:
Citation_Information:
Originator: Char, Stephen J., Sieverling, Jennifer B., and Miller, L. Lee
Publication_Date: 19960000
Publication_Time: 0000
Title:
Unconsolidated-sediment thickness--see Supplemental Information for a full title
Edition: 1
Geospatial_Data_Presentation_Form: map
Series_Information:
Series_Name: Open-File Report
Issue_Identification: 96659
Publication_Information:
Publication_Place: Denver, Colorado
Publisher: U.S. Geological Survey
Other_Citation_Details:
OFR 96-659B
Online_Linkage: http://co.water.usgs.gov/frirp/water_project/
Larger_Work_Citation:
Cross_Reference:
Citation_Information:
Originator: Char, Stephen J., Sieverling, Jennifer B., and Miller, L. Lee
Publication_Date: 19960000
Publication_Time: 0000
Title:
Water-table altitude--see Supplemental Information Notes for a complete citation
Edition: 1
Geospatial_Data_Presentation_Form: map
Series_Information:
Series_Name: Open-File Report
Issue_Identification: 96659
Publication_Information:
Publication_Place: Denver, Colorado
Publisher: U.S. Geological Survey
Other_Citation_Details:
OFR 96-659C
Online_Linkage: http://co.water.usgs.gov/frirp/water_project/
Larger_Work_Citation:
Cross_Reference:
Citation_Information:
Originator: Char, Stephen J., Sieverling, Jennifer B., and Miller, L. Lee
Publication_Date: 19960000
Publication_Time: 0000
Title:
Bedrock-surface altitude (see Supplemental Information Notes for a full title)
Edition: 1
Geospatial_Data_Presentation_Form: map
Series_Information:
Series_Name: Open-File Report
Issue_Identification: 96659
Publication_Information:
Publication_Place: Denver, Colorado
Publisher: U.S. Geological Survey
Other_Citation_Details:
OFR 96-659D
Online_Linkage: http://co.water.usgs.gov/frirp/water_project/
Larger_Work_Citation:
Cross_Reference:
Citation_Information:
Originator: Char, Stephen J., Sieverling, Jennifer B., and Miller, L. Lee
Publication_Date: 19960000
Publication_Time: 0000
Title:
Depth to water (see Supplemental Information Notes for a complete citation)
Edition: 1
Geospatial_Data_Presentation_Form: map
Series_Information:
Series_Name: Open-File Report
Issue_Identification: 96659
Publication_Information:
Publication_Place: Denver, Colorado
Publisher: U.S. Geological Survey
Other_Citation_Details:
OFR 96-659E
Online_Linkage: http://co.water.usgs.gov/frirp/water_project/
Larger_Work_Citation:
Cross_Reference:
Citation_Information:
Originator: Char, Stephen J., Sieverling, Jennifer B., and Miller, L. Lee
Publication_Date: 19960000
Publication_Time: 0000
Title:
Saturated thickness (see Supplemental Information Notes for a complete citation)
Edition: 1
Geospatial_Data_Presentation_Form: map
Series_Information:
Series_Name: Open-File Report
Issue_Identification: 96659
Publication_Information:
Publication_Place: Denver, Colorado
Publisher: U.S. Geological Survey
Other_Citation_Details:
OFR 96-659F
Online_Linkage: http://co.water.usgs.gov/frirp/water_project/
Larger_Work_Citation:
Back to Top
Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
Attribute accuracy is described, where present, with each
           attribute defined in the Entity and Attribute Section
Logical_Consistency_Report:
Chain-node topology present.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
The contours that comprise this data set were digitized by hand
from hand-drawn maps.  The hand-drawn contours were interpolated
using data from wells whose locations were reported in Public Land
Survey System coordinates.  The well locations are theoretically
accurate to the nearest quarter-quarter-quarter-quarter section.
However, the wells were not evenly distributed throughout the study
area, nor were their locations field-verified.
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None
Process_Step:
Process_Description:
SJCHAR BUILD OVERBURDENTAG LINE
Source_Used_Citation_Abbreviation:
None
Process_Date: 19960327
Process_Time: 1631
Source_Produced_Citation_Abbreviation:
None
Process_Step:
Process_Description:
SJCHAR ARCEDIT /GIS/USERS/ROBSON/OVERBURDEN/OVERBURDENTAG
Source_Used_Citation_Abbreviation:
None
Process_Date: 19960328
Process_Time: 923
Source_Produced_Citation_Abbreviation:
None
Process_Step:
Process_Description:
SJCHAR BUILD OVERBURDENTAG LINE
Source_Used_Citation_Abbreviation:
None
Process_Date: 19960328
Process_Time: 1134
Source_Produced_Citation_Abbreviation:
None
Process_Step:
Process_Description:
SJCHAR ARCEDIT /GIS/USERS/ROBSON/OVERBURDEN/OVERBURDENTAG
Source_Used_Citation_Abbreviation:
None
Process_Date: 19960329
Process_Time: 1331
Source_Produced_Citation_Abbreviation:
None
Process_Step:
Process_Description:
SJCHAR BUILD OVERBURDENTAG LINE
Source_Used_Citation_Abbreviation:
None
Process_Date: 19960329
Process_Time: 1416
Source_Produced_Citation_Abbreviation:
None
Process_Step:
Process_Description:
JBSIEVER ARCEDIT /GIS/USERS/ROBSON/OVERBURDEN/OVERBURDENTAG
Source_Used_Citation_Abbreviation:
None
Process_Date: 19960329
Process_Time: 1643
Source_Produced_Citation_Abbreviation:
None
Process_Step:
Process_Description:
JBSIEVER ARCEDIT /GIS/USERS/ROBSON/OVERBURDEN/OVERBURDENTAG
Source_Used_Citation_Abbreviation:
None
Process_Date: 19960403
Process_Time: 918
Source_Produced_Citation_Abbreviation:
None
Process_Step:
Process_Description:
JBSIEVER ARCEDIT /GIS/USERS/ROBSON/OVERBURDEN/OVERBURDENTAG
Source_Used_Citation_Abbreviation:
None
Process_Date: 19960410
Process_Time: 1450
Source_Produced_Citation_Abbreviation:
None
Process_Step:
Process_Description:
JBSIEVER ARCEDIT /GIS/USERS/ROBSON/OVERBURDEN/OVERBURDENTAG
Source_Used_Citation_Abbreviation:
None
Process_Date: 19960411
Process_Time: 1553
Source_Produced_Citation_Abbreviation:
None
Process_Step:
Process_Description:
JBSIEVER ARCEDIT /GIS/USERS/ROBSON/OVERBURDEN/OVERBURDENTAG
Source_Used_Citation_Abbreviation:
None
Process_Date: 19960412
Process_Time: 828
Source_Produced_Citation_Abbreviation:
None
Process_Step:
Process_Description:
JBSIEVER ARCEDIT /GIS/USERS/ROBSON/OVERBURDEN/OVERBURDENTAG
Source_Used_Citation_Abbreviation:
None
Process_Date: 19960416
Process_Time: 1113
Source_Produced_Citation_Abbreviation:
None
Process_Step:
Process_Description:
SJCHAR   DOCUMENT OVERBURDENTAG DELETE SJCHAR
Source_Used_Citation_Abbreviation:
None
Process_Date: 19960603
Process_Time: 1612
Source_Produced_Citation_Abbreviation:
None
Process_Step:
Process_Description:
SJCHAR   DOCUMENT OVERBURDENTAG CREATE SJCHAR
Source_Used_Citation_Abbreviation:
None
Process_Date: 19960604
Process_Time: 1719
Source_Produced_Citation_Abbreviation:
None
Process_Step:
Process_Description:
SJCHAR   DOCUMENT OVERBURDENTAG UPDATE SJCHAR
Source_Used_Citation_Abbreviation:
None
Process_Date: 19960619
Process_Time: 1412
Source_Produced_Citation_Abbreviation:
None
Process_Step:
Process_Description:
SJCHAR   DOCUMENT OVERBURDENTAG UPDATE SJCHAR
Source_Used_Citation_Abbreviation:
None
Process_Date: 19960705
Process_Time: 1534
Source_Produced_Citation_Abbreviation:
None
Process_Step:
Process_Description:
SJCHAR   DOCUMENT OVERBURDENTAG UPDATE SJCHAR
Source_Used_Citation_Abbreviation:
None
Process_Date: 19960912
Process_Time: 1004
Source_Produced_Citation_Abbreviation:
None
Process_Step:
Process_Description:
SJCHAR   DOCUMENT OVERBURDENTAG UPDATE SJCHAR
Source_Used_Citation_Abbreviation:
None
Process_Date: 19961016
Process_Time: 1516
Source_Produced_Citation_Abbreviation:
None
Process_Step:
Process_Description:
SJCHAR   DOCUMENT OVERBURDENTAG UPDATE SJCHAR
Source_Used_Citation_Abbreviation:
None
Process_Date: 19961029
Process_Time: 1120
Source_Produced_Citation_Abbreviation:
None
Process_Step:
Process_Description:
SJCHAR RENAME OVERBURDENTAG OVERBURDEN
Source_Used_Citation_Abbreviation:
None
Process_Date: 19961104
Process_Time: 1525
Source_Produced_Citation_Abbreviation:
None
Process_Step:
Process_Description:
SJCHAR RENAME OVERBURDEN SEDTHICK
Source_Used_Citation_Abbreviation:
None
Process_Date: 19961104
Process_Time: 1540
Source_Produced_Citation_Abbreviation:
None
Process_Step:
Process_Description:
SJCHAR   DOCUMENT SEDTHICK UPDATE SJCHAR
Source_Used_Citation_Abbreviation:
None
Process_Date: 19961104
Process_Time: 1603
Source_Produced_Citation_Abbreviation:
None
Process_Step:
Process_Description:
SJCHAR   DOCUMENT SEDTHICK UPDATE SJCHAR
Source_Used_Citation_Abbreviation:
None
Process_Date: 19961105
Process_Time: 1740
Source_Produced_Citation_Abbreviation:
None
Process_Step:
Process_Description:
SJCHAR COPY /GIS/USERS/ROBSON/OVERBURDEN/SEDTHICK SEDTHICK
Source_Used_Citation_Abbreviation:
None
Process_Date: 19970117
Process_Time: 915
Source_Produced_Citation_Abbreviation:
None
Process_Step:
Process_Description:
SJCHAR   DOCUMENT SEDTHICK UPDATE SJCHAR
Source_Used_Citation_Abbreviation:
None
Process_Date: 19970117
Process_Time: 1008
Source_Produced_Citation_Abbreviation:
None
Process_Step:
Process_Description:
SJCHAR EXPORT COVER SEDTHICK SEDTHICK
Source_Used_Citation_Abbreviation:
None
Process_Date: 19970117
Process_Time: 1104
Source_Produced_Citation_Abbreviation:
None
Process_Step:
Process_Description:
SJCHAR BUILD SEDTHICK LINE
Source_Used_Citation_Abbreviation:
None
Process_Date: 19970121
Process_Time: 1605
Source_Produced_Citation_Abbreviation:
None
Process_Step:
Process_Description:
SJCHAR EXPORT COVER SEDTHICK SEDTHICK
Source_Used_Citation_Abbreviation:
None
Process_Date: 19970121
Process_Time: 1627
Source_Produced_Citation_Abbreviation:
None
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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_Terms_Description:
SDTS_Point_and_Vector_Object_Type: String
Point_and_Vector_Object_Count: 499
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains'
Point_and_Vector_Object_Count: 0
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Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Grid_Coordinate_System:
Grid_Coordinate_System_Name: Universal Transverse Mercator
Universal_Transverse_Mercator:
UTM_Zone_Number: 13
Transverse_Mercator:
Scale_Factor_at_Central_Meridian: 0.999600
Longitude_of_Central_Meridian: -105.000000
Latitude_of_Projection_Origin: 0.000000
False_Easting: 500000.000000
False_Northing: 0.000000
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 0.000256
Ordinate_Resolution: 0.000256
Planar_Distance_Units: meters
Geodetic_Model:
Horizontal_Datum_Name: North American Datum of 1983
Ellipsoid_Name: Geodetic Reference System 80
Semi-major_Axis: 6378137.000000
Denominator_of_Flattening_Ratio: 298.257222
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Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: SEDTHICK.AAT
Entity_Type_Definition:
Arc attribute table
Entity_Type_Definition_Source:
U.S. Geological Survey
Attribute:
Attribute_Label: FNODE#
Attribute_Definition:
Internal number of from-node
Attribute_Definition_Source:
Computed
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Sequential unique positive integer
Attribute:
Attribute_Label: TNODE#
Attribute_Definition:
Internal number of to-node
Attribute_Definition_Source:
Computed
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Sequential unique positive integer
Enumerated_Domain_Value_Definition:


Enumerated_Domain_Value_Definition_Source:


Attribute:
Attribute_Label: LPOLY#
Attribute_Definition:
Internal number of poly to left of arc
Attribute_Definition_Source:
Computed
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Sequential unique positive integer
Enumerated_Domain_Value_Definition:


Enumerated_Domain_Value_Definition_Source:


Attribute:
Attribute_Label: RPOLY#
Attribute_Definition:
Internal number of poly to right of arc
Attribute_Definition_Source:
Computed
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Sequential unique positive integer
Enumerated_Domain_Value_Definition:


Enumerated_Domain_Value_Definition_Source:


Attribute:
Attribute_Label: LENGTH
Attribute_Definition:
Length of arc in coverage units
Attribute_Definition_Source:
Computed
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Positive real numbers
Enumerated_Domain_Value_Definition:


Enumerated_Domain_Value_Definition_Source:


Attribute:
Attribute_Label: SEDTHICK#
Attribute_Definition:
Internal feature number
Attribute_Definition_Source:
Computed
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Sequential unique positive integer
Enumerated_Domain_Value_Definition:


Enumerated_Domain_Value_Definition_Source:


Attribute:
Attribute_Label: SEDTHICK-ID
Attribute_Definition:
User-assigned feature number
Attribute_Definition_Source:
User-defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Integer
Enumerated_Domain_Value_Definition:


Enumerated_Domain_Value_Definition_Source:


Attribute:
Attribute_Label: CONTOUR
Attribute_Definition:
Unconsolidated sediment thickness, in feet
Attribute_Definition_Source:
U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Positive integers evenly divisible by 20
Enumerated_Domain_Value_Definition:


Enumerated_Domain_Value_Definition_Source:


Attribute:
Attribute_Label: DASH
Attribute_Definition:
One-character-wide key used in line plotting
Attribute_Definition_Source:
U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: "Y" or "N"
Enumerated_Domain_Value_Definition:


Enumerated_Domain_Value_Definition_Source:


Attribute:
Attribute_Label: TEXTKEY
Attribute_Definition:
One-character-wide key used in text plotting
Attribute_Definition_Source:
U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: "P" or "B"
Enumerated_Domain_Value_Definition:


Enumerated_Domain_Value_Definition_Source:


Attribute:
Attribute_Label: DEPRESSION
Attribute_Definition:
One-character-wide key to indicate lines which delineate depression features
Attribute_Definition_Source:
U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: "Y" or "N"
Enumerated_Domain_Value_Definition:


Enumerated_Domain_Value_Definition_Source:


Overview_Description:
Entity_and_Attribute_Overview:
Arc attribute "CONTOUR" is the value of the thickness of the
unconsolidated sediment overlying the bedrock surface in units of
feet.

Arc attribute "DASH" indicates line symbol type (dash or solid)
intended for use in plotting the illustration.  Dashed contour
locations are less accurate.

Arc attribute "TEXTKEY" indicates how text is drawn in a plotting
routine.  "B" for blank; "P" for point2.

Arc attribute "DEPRESSION" indicates whether or not a line feature
delineates a depression feature.  Lines that delineate depressions
are coded as "Y"; non-depression features are coded as "N."
Entity_and_Attribute_Detail_Citation:
Not Available
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Distribution_Information:
Distributor:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Colorado District Chief
Contact_Organization: U.S. Geological Survey, Water Resources Division
Contact_Position: Colorado District Chief
Contact_Address:
Address_Type: mailing address
Address:
Box 25046, MS 415, Denver Federal Center
City: Lakewood
State_or_Province: Colorado
Postal_Code: 80225-0046
Country: United States of America
Contact_Voice_Telephone: 303-236-4882
Contact_Facsimile_Telephone: 303-236-4912
Contact_Electronic_Mail_Address: dc_co@usgs.gov
Hours_of_Service: 8:00am - 4:30pm
Resource_Description: Downloadable Data
Distribution_Liability:
Although this data set has been used by the U.S. Geological
Survey, U.S. Department of the Interior, no warranty expressed or
implied is made by the U.S. Geological Survey as to the accuracy
of the data and related materials. The act of distribution shall not 
constitute any such warranty, and no responsibility is assumed by 
the U.S. Geological Survey in the use of this data, software, or 
related materials.

Any use of trade, product, or firm names is for descriptive
purposes only and does not imply endorsement by the U.S.
Government.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: ArcInfo Export File
Format_Information_Content:
Sediment thickness contours geographic features
Transfer_Size: 720 KB
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: http://certmapper.cr.usgs.gov/data/frip/spatial/export/sedthickse.zip
Digital_Form:
Digital_Transfer_Information:
Format_Name: Shapefile
Format_Information_Content:
Sediment thickness contours geographic features
Transfer_Size: 720 KB
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: http://certmapper.cr.usgs.gov/data/frip/spatial/shape/sedthicks.zip
Digital_Form:
Digital_Transfer_Information:
Format_Name: Image Map Service (CO_FrontRange)
Format_Version_Number: 4.01
Format_Specification:
ArcIMS Image Map Service
Format_Information_Content:
A web-based interactive mapping system that accesses an ArcIMS Map Service running on certmapper.cr.usgs.gov.
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: http://certmapper.cr.usgs.gov/pubs/servlet/MapViewerBroker?project=frip&Service=CO_FrontRange&OVMap=CO_overview
Access_Instructions:
This URL links to a web-based interactive mapping system that accesses an ArcIMS Image Map Service that runs in Netscape 4.7, Internet Explorer 4.5 and higher. The mapservice can also be accessed using any custom client that adheres to the protocol specified through ArcXML.
Digital_Form:
Digital_Transfer_Information:
Format_Name: ARCE ARC/INFO Export format
Format_Name: SDTS Spatial Data Transfer Standards (FIPS 173)
Format_Version_Number: 7.0.4
Format_Specification:
Topological Vector Profile
File_Decompression_Technique: GNU General Public License gunzip 1.2.4 (18 Aug 93)
File_Decompression_Technique: GNU General Public License gunzip 1.2.4 (18 Aug 93)
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: http://co.water.usgs.gov/frirp/water_project
Access_Instructions:
Download data set to local disk using a World-Wide Web browser.
Online_Computer_and_Operating_System:
Data General running DG/UX Unix 5.4R3.10
Fees: None for online down-load option. If applicable, fees may vary for custom orders
Ordering_Instructions:
Download via Internet using World-Wide Web browser.
Turnaround: Times will vary, depending upon the request.
Custom_Order_Process:
Contact the Colorado District for off-line or other custom order requests.
Technical_Prerequisites:
User must be able to use either SDTS (FIPS 173) or ARC/INFO Export Formats.
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Metadata_Reference_Information:
Metadata_Date: 19970117
Metadata_Review_Date: 20050316
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: Char, S.J.
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
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