Metadata:
Identification_Information:
Citation:
Citation_Information:
Originator: Douglas B. Stoeser
Originator: Gregory N. Green
Originator: Laurie C. Morath
Originator: William D. Heran
Originator: Anna B. Wilson
Originator: David W. Moore
Originator: Bradley S. Van Gosen
Publication_Date: 2006
Title:
Preliminary Integrated Geologic Map
Databases for the
Central States:
- The State of
Edition: version 1.0
Geospatial_Data_Presentation_Form: map
Series_Information:
Series_Name:
Issue_Identification: 2005-1351
Publication_Information:
Publication_Place:
Publisher:
Online_Linkage: http://pubs.usgs.gov/of/2005/1351/
Larger_Work_Citation:
Citation_Information:
Originator: Douglas B. Stoeser
Originator: Gregory N. Green
Originator: Douglas B. Stoeser
Originator: Gregory N. Green
Originator: Laurie C. Morath
Originator: William D. Heran
Originator: Anna B. Wilson
Originator: David W. Moore
Originator: Bradley S. Van Gosen
Publication_Date: 2006
Title:
Preliminary Integrated Geologic
Map Databases for the United States
Central States: Montana, Wyoming,
Colorado, New Mexico,
Kansas, Oklahoma, Texas,
Missouri, Arkansas, and Louisiana,
North Dakota, South Dakota,
Nebraska, and Iowa.
Edition: version 1.0
Geospatial_Data_Presentation_Form:
map
Series_Information:
Series_Name: U.S. Geological
Survey Open-File Report
Issue_Identification: 1351
Publication_Information:
Publication_Place:
Reston, VA
Publisher: U.S. Geological Survey
Online_Linkage: http://pubs.usgs.gov/of/2005/1351/
Description:
Abstract:
This open-file report presents the
results of the USGS Mineral Resources
Program activity to compile a
national-scale geologic map database to support
national and regional level projects,
including mineral resource and geo-
environmental assessments. The only
comprehensive sources of regional- and
national-scale geologic maps are state
geologic maps with scales ranging from
1:100,000 to 1:1,000,000. Digital
versions of these state maps form the core
of what is presented here. Because no adequate geologic map exists for
the
state of Alaska, it is being compiled
in regional blocks that also form part
of this national database. It is
expected that this series will completed by
approximately the end of 2007. These maps and databases are being released
in blocks of states or, in the case of
Alaska, as compiled blocks of
1:250,000-scale quadrangles as chapters
in this series. For Alaska, formal
maps as well as databases are being
published here, whereas for the
conterminous U.S. only state databases
and preview graphics are presented,
because published maps for most states
already exist. For Alaska these
regional compilations will form the
base for compiling a new geologic map of
the state. As documented in Chapter A, standards for the
conterminous U.S.
are somewhat different than those for
Alaska and Hawaii.
Purpose:
A primary goal of this work is to
develop geologic map datasets with
standardized structure and attribution.
The database design and standards are
documented in Chapter A of this series.
The intent is that contiguous databases
can be merged seamlessly and without
any additional effort. In addition to a
common database structure, the
conterminous U.S. state databases
(the contiguous 48 states) have been
fitted to a set of standard state
boundaries so that, when states are
merged, they match without slivers or
overlap. No attempt has been made to reconcile
differences in mapping across
state boundaries.
Supplemental_Information:
This database consists of five major
Arc/Info GIS datasets for each state;
- one: geologic map with formations,
- two: faults (where present),
- three: dikes (where present),
- four: miscellaneous line features
(where present),
- five: miscellaneous point features
(where present).
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2006
Currentness_Reference: publication date
Status:
Progress: Complete
Maintenance_and_Update_Frequency: none
planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -96.7
East_Bounding_Coordinate: -90.1
North_Bounding_Coordinate: 43.6
South_Bounding_Coordinate: 40.4
Keywords:
Theme:
Theme_Keyword_Thesaurus: none
Theme_Keyword: geology
Place:
Place_Keyword_Thesaurus: none
Place_Keyword: USA
Place_Keyword: Iowa
Theme:
Theme_Keyword_Thesaurus: National
Geologic Map Database Catalog themes,
augmented
Theme_Keyword: 3100 - Vector
Theme_Keyword: 3110 - ESRI
Theme_Keyword: 3112 - export
Theme_Keyword: 1100 - Geology
Theme_Keyword: 1101 - General
Place:
Place_Keyword_Thesaurus: Augmented FIPS
10-4 and FIPS 6-4, version 1.0
Place_Keyword: US019 = Iowa
Access_Constraints: none
Use_Constraints:
This database is not meant to be used or
displayed at any scale other
than 1:500,000.
Any hardcopies utilizing these data sets
shall clearly indicate
their source. If the licensee has modified the data in any
way
they are obligated to describe the types
of modifications they
have performed on the hardcopy map. Licensee specifically agrees
not to misrepresent these data sets, nor
to imply that changes they
made were approved by the U.S. Geological
Survey.
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Gregory N. Green
Contact_Organization: U.S. Geological
Survey
Contact_Address:
Address_Type: mailing and physical
address
Address: MS 973, USGS, Denver Federal Center
City: Denver
State_or_Province: CO
Postal_Code: 80225
Country: USA
Contact_Voice_Telephone: 303-236-5390
Contact_Electronic_Mail_Address:
ggreen@usgs.gov
Data_Set_Credit:
State Geologic Map Compilation (SGMC)
activity of the National Surveys and
Analysis projects of the US Geological
Survey Mineral Resources Program.
Native_Data_Set_Environment:
ARC/INFO version 9.1
ArcView 3.2
Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
The values of the attributes ROCKTYPE1
and ROCKTYPE2 were assigned based on the
information in the legends of the
source maps (most of which are paper).
The
definitions of these values are
described in the draft document Geologic Map
Unit Classification version 6.1
(Johnson and others, 2002; available at the
following website: http://geology.usgs.gov/dm).
Logical_Consistency_Report:
All internal polygons were checked for
closure with vendor software and on hard
copy plots. Overshoots and undershoots
have been deleted or corrected as
appropriate.
Completeness_Report:
Bodies of water are classified as water,
and the geologic units underlying them
are not included in this coverage.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
The geologic map was digitized from
compilations ranging in scale from
1:1,000,000 to 1:100,000 and is an
accurate representation of the source maps.
It is intended to be used at scales
ranging from 1:1,000,000 to 1:500,000.
Display at significantly larger
scales may produce small errors in locations
of contacts or faults relative to
features contained in other data sets.
Accuracy of Iowa state boundary and
those arcs intersecting it: The accuracy
of the state boundary arcs is based on the
1:100000 scale original data used
to produce this boundary (Johnson,
Bruce R. and Leveritch, Beth, 1998,
1:100,000 Scale State Boundaries of
the Conterminous United States: U.S.
Geological Survey, unpublished (see
metadata file: st100kmeta.txt, Chapter A).
Those internal arcs intersecting the
state boundary were extended or shortened
as needed to complete polygons,
possibly creating a small amount of error.
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: Iowa Department of
Natural Resources - Geological Survey
Publication_Date: 1969
Title: Geologic map of Iowa
Geospatial_Data_Presentation_Form:
map
Series_Information:
Series_Name: Statewide Digital
Data Bases
Issue_Identification: Bedrock
Geology
Publication_Information:
Publication_Place: Iowa City, Iowa, USA
Publisher: Iowa Department of
Natural Resources
Online_Linkage:
ftp://ftp.igsb.uiowa.edu/gis_library/IA_state/Geologic/Bedrock/
Bedrock_geology.zip
Source_Scale_Denominator: 500000
Type_of_Source_Media: online
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 1969
Source_Currentness_Reference: publication
date
Source_Citation_Abbreviation: IA001
Source_Contribution: A digital
representation of the Bedrock Geological map of
Iowa
Source_Information:
Source_Citation:
Citation_Information:
Originator: Bruce R. Johnson
Title: 1:100,000 Scale State
Boundaries of the Conterminous United States
Geospatial_Data_Presentation_Form:
vector digital data
Publication_Date: unpublished
material
Source_Scale_Denominator: 100,000
Type_of_Source_Media: online
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 199808
Source_Currentness_Reference: unknown
Source_Citation_Abbreviation: US001
Source_Contribution: Provided linework
for state boundaries
Source_Information:
Source_Citation:
Citation_Information:
Originator: Bruce R. Johnson
Publication_Date: unpublished material
Title: Geologic Map Unit
Classification, ver. 6.1
Geospatial_Data_Presentation_Form:
document
Type_of_Source_Media: online; http://geology.usgs.gov/dm
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: unknown
Source_Currentness_Reference: unknown
Source_Citation_Abbreviation: Johnson
Lith Class 6.1
Source_Contribution: Classification
scheme used for lithology.
Process_Step:
Process_Description:
The purpose of this standardization
is to allow all SGMC covers to be
seamlessly joined without any
additional effort to form regional or national
level digital maps. Note that for
Alaska, the state is being compiled as
blocks of 1:250k quadrangles that
will ultimately be used to compile a new
state map. Douglas Stoeser and Ric
Wilson are co-coordinators for the overall
SGMC effort, with Stoeser
coordinating work on the mainland states and Wilson
coordinating work for Alaska and
Hawaii.
Process_Date: 2003 - 2006
Process_Step:
Process_Description:
G.N. Green obtained the digital geologic
map of Iowa from the website:
ftp://ftp.igsb.uiowa.edu/gis_library/IA_state/Geologic/Bedrock/
Bedrock_geology.zip.
Re-projected the coverage into the
following:
projection: Lambert Conformal Conic
units: meters
datum: NAD27
standard parallel 1: 33 0 0.000
standard parallel 2: 45 0 0.000
central meridian: -100 0 0.000
reference latitude: 0 0 0.000
false easting: 0.000
false northing: 0.000
All attributes were deleted except
MAPNAME.
(Note: Attributes associated with the generation of
the coverages were not
deleted.
PAT - shape, area, perimeter,
coverage#, and coverage-id
AAT - shape, fnode#, tnode#, lnode#,
rnode#, length, coverage#, and coverage-
id)
The values from MAPNAME where then
calculated into a new field called
ORIG_LABEL.
Process_Date: 2005 02
Process_Step:
Process_Description:
The following attributes were
exported from Filemaker as a comma delimited
file
map_symbol1
map_symbol2
unit_link
reference_id
unit_age
rocktype1
rocktype2
The attributes were then loaded into
INFO with the following structures:
item name: orig_label
width: 12
output: 12
type: c
item name: sgmc_label
width: 16
output: 16
type: c
item name: unit_link
width: 18
output: 18
type: c
item name: source
width: 6
output: 8
type: c
item name: unit_age
width: 60
output: 60
type: c
item name: rocktype1
width: 40
output: 40
type: c
item name: rocktype2
width: 40
output: 40
type: c
Process_Date: 20040404
Process_Step:
Process_Description:
Once the .csv was loaded, it was
joined in Arc/Info with the joinitem command.
orig_label as the related item.
Process_Date: 2005 01
Process_Step:
Process_Description:
Once the .pat file was correct, the
.aat file was addressed. The following
items were added to the table:
item name: arc-code
width: 3
output: 3
type: i
item name: arc-para1
width: 3
output: 3
type: i
item name: arc-para2
width: 3
output: 3
type: i
item name: source
width: 6
output: 8
type: c
Process_Date: 2005 03
Process_Step:
Process_Description:
Arc-code was populated using the
digital map source to tag the lines using the
AAT line type data dictionary.
Arc-para1 was populated when
additional information was available such as
upthrown side of a fault or angle of
thrusting on a fault.
Arc-para2 is a scratch field that is
used mostly in Alaska.
Source was populated with code that
designates the source used for the
linework; typically the paper map.
Process_Date: 2005 03
Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Vector
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Map_Projection:
Map_Projection_Name: Lambert
Conformal Conic
Lambert_Conformal_Conic:
Standard_Parallel: 33
Standard_Parallel: 45
Longitude_of_Central_Meridian:
-100.0
Latitude_of_Projection_Origin: 0
False_Easting: 0.00000
False_Northing: 0.00000
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method:
coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 0.01
Ordinate_Resolution: 0.01
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:
Detailed_Description:
Entity_Type:
Entity_Type_Label: ia_geol.pat
Entity_Type_Definition: Polygon
attribute table for the Iowa geologic coverage.
Entity_Type_Definition_Source: ESRI
Attribute:
Attribute_Label: orig_label
Attribute_Definition: unmodified map
unit symbol from source cover.
Attribute_Definition_Source: Doug
Stoeser
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Kcd
Enumerated_Domain_Value_Definition:
Colorado and Dakota Groups
Enumerated_Domain_Value_Definition_Source:
n/a
Enumerated_Domain:
Enumerated_Domain_Value: Ku
Enumerated_Domain_Value_Definition:
Cretaceous Undifferentiated
Enumerated_Domain_Value_Definition_Source: n/a
Enumerated_Domain:
Enumerated_Domain_Value: Jfd
Enumerated_Domain_Value_Definition:
Ft.Dodge Beds
Enumerated_Domain_Value_Definition_Source: n/a
Enumerated_Domain:
Enumerated_Domain_Value: PAw
Enumerated_Domain_Value_Definition:
Wabaunsee Group
Enumerated_Domain_Value_Definition_Source: n/a
Enumerated_Domain:
Enumerated_Domain_Value: PAs
Enumerated_Domain_Value_Definition:
Shawnee Group
Enumerated_Domain_Value_Definition_Source:
n/a
Enumerated_Domain:
Enumerated_Domain_Value: PAd
Enumerated_Domain_Value_Definition:
Douglas Group
Enumerated_Domain_Value_Definition_Source: n/a
Enumerated_Domain:
Enumerated_Domain_Value: PAl
Enumerated_Domain_Value_Definition:
Lansing Group
Enumerated_Domain_Value_Definition_Source: n/a
Enumerated_Domain:
Enumerated_Domain_Value: PAkc
Enumerated_Domain_Value_Definition:
Kansas City Group
Enumerated_Domain_Value_Definition_Source: n/a
Enumerated_Domain:
Enumerated_Domain_Value: PAp
Enumerated_Domain_Value_Definition:
Pleasanton Group
Enumerated_Domain_Value_Definition_Source: n/a
Enumerated_Domain:
Enumerated_Domain_Value: PAm
Enumerated_Domain_Value_Definition:
Marmaton Group
Enumerated_Domain_Value_Definition_Source: n/a
Enumerated_Domain:
Enumerated_Domain_Value: PAch
Enumerated_Domain_Value_Definition:
Cherokee Group
Enumerated_Domain_Value_Definition_Source: n/a
Enumerated_Domain:
Enumerated_Domain_Value: Mm
Enumerated_Domain_Value_Definition:
Meramec Series
Enumerated_Domain_Value_Definition_Source: n/a
Enumerated_Domain:
Enumerated_Domain_Value: Mo
Enumerated_Domain_Value_Definition:
Osage Series
Enumerated_Domain_Value_Definition_Source: n/a
Enumerated_Domain
Enumerated_Domain_Value: Mk
Enumerated_Domain_Value_Definition:
Kinderhook Series
Enumerated_Domain_Value_Definition_Source:
n/a
Enumerated_Domain:
Enumerated_Domain_Value: Dys
Enumerated_Domain_Value_Definition:
Yellow Spring Group
Enumerated_Domain_Value_Definition_Source: n/a
Enumerated_Domain:
Enumerated_Domain_Value: Dlc
Enumerated_Domain_Value_Definition:
Lime Creek Formation
Enumerated_Domain_Value_Definition_Source: n/a
Enumerated_Domain:
Enumerated_Domain_Value: Dsq
Enumerated_Domain_Value_Definition: State
Quarry Limestone
Enumerated_Domain_Value_Definition_Source: n/a
Enumerated_Domain:
Enumerated_Domain_Value: Dsr
Enumerated_Domain_Value_Definition:
Shell Rock Formation
Enumerated_Domain_Value_Definition_Source: n/a
Enumerated_Domain:
Enumerated_Domain_Value: Dcv
Enumerated_Domain_Value_Definition:
Cedar Valley Limestone
Enumerated_Domain_Value_Definition_Source:
n/a
Enumerated_Domain:
Enumerated_Domain_Value: Dw
Enumerated_Domain_Value_Definition:
Wapsipinicon Formation
Enumerated_Domain_Value_Definition_Source: n/a
Enumerated_Domain:
Enumerated_Domain_Value: Dlp
Enumerated_Domain_Value_Definition:
LaPorte City Chert
Enumerated_Domain_Value_Definition_Source: n/a
Enumerated_Domain:
Enumerated_Domain_Value: Sn
Enumerated_Domain_Value_Definition:
Niagaran Series
Enumerated_Domain_Value_Definition_Source: n/a
Enumerated_Domain:
Enumerated_Domain_Value: Sa
Enumerated_Domain_Value_Definition:
Alexandrian Series
Enumerated_Domain_Value_Definition_Source: n/a
Enumerated_Domain:
Enumerated_Domain_Value: Om
Enumerated_Domain_Value_Definition:
Maquoketa Formation
Enumerated_Domain_Value_Definition_Source:
n/a
Enumerated_Domain:
Enumerated_Domain_Value: Ogdp
Enumerated_Domain_Value_Definition:
Galena-Decorah-Platteville Formations
Enumerated_Domain_Value_Definition_Source: n/a
Enumerated_Domain:
Enumerated_Domain_Value: Osp
Enumerated_Domain_Value_Definition:
St. Peter Sandstone
Enumerated_Domain_Value_Definition_Source: n/a
Enumerated_Domain:
Enumerated_Domain_Value: Opc
Enumerated_Domain_Value_Definition:
Prairie du Chien Formation
Enumerated_Domain_Value_Definition_Source: n/a
Enumerated_Domain:
Enumerated_Domain_Value: CAsc
Enumerated_Domain_Value_Definition:
St. Croixan Series
Enumerated_Domain_Value_Definition_Source: n/a
Enumerated_Domain:
Enumerated_Domain_Value: pCAc
Enumerated_Domain_Value_Definition:
Crystalline Rocks
Enumerated_Domain_Value_Definition_Source:
n/a
Enumerated_Domain:
Enumerated_Domain_Value: pCAs
Enumerated_Domain_Value_Definition:
Sioux Quartzite
Enumerated_Domain_Value_Definition_Source: n/a
Enumerated_Domain:
Enumerated_Domain_Value: water
Enumerated_Domain_Value_Definition:
Surface Water
Enumerated_Domain_Value_Definition_Source: n/a
Attribute:
Attribute_Label: sgmc_label
Attribute_Definition: sgmc_label = orig_label + ;n
where n= province number (n=0
if no province)
Attribute_Definition_Source: Doug
Stoeser
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: n/a
Enumerated_Domain_Value_Definition:
n/a
Enumerated_Domain_Value_Definition_Source: n/a
Attribute:
Attribute_Label: unit_link
Attribute_Definition:
composite map label = ST + sgmc_label
This creates a unique identifier for
every unit in the CONUS (continental
United States) covers.
Attribute_Definition_Source: Doug
Stoeser
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: n/a
Enumerated_Domain_Value_Definition:
n/a
Enumerated_Domain_Value_Definition_Source: n/a
Attribute:
Attribute_Label: source
Attribute_Definition: reference to the
source used
Attribute_Definition_Source: Doug
Stoeser
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: IA001
Enumerated_Domain_Value_Definition:
n/a
Enumerated_Domain_Value_Definition_Source:
Iowa Department of Natural
Resources, 1969, Bedrock Geology of Iowa:
Iowa Department of Natural
Resources, Iowa CIty, Iowa. 1:500,000
online at
ftp://ftp.igsb.uiowa.edu/gis_library/IA_state/Geologic/Bedrock/
Bedrock_geology.zip
Attribute:
Attribute_Label: unit_age
Attribute_Definition: geologic age from
the source map used.
Attribute_Definition_Source: Doug
Stoeser
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Cretaceous
Enumerated_Domain_Value_Definition:
geologic age
Enumerated_Domain_Value_Definition_Source: n/a
Enumerated_Domain:
Enumerated_Domain_Value: Jurassic
Enumerated_Domain_Value_Definition:
geologic age
Enumerated_Domain_Value_Definition_Source: n/a
Enumerated_Domain:
Enumerated_Domain_Value: Late
Pennsylvanian
Enumerated_Domain_Value_Definition:
geologic age
Enumerated_Domain_Value_Definition_Source: n/a
Enumerated_Domain:
Enumerated_Domain_Value: Middle
Pennsylvanian
Enumerated_Domain_Value_Definition:
geologic age
Enumerated_Domain_Value_Definition_Source: n/a
Enumerated_Domain:
Enumerated_Domain_Value: Late
Mississippian
Enumerated_Domain_Value_Definition:
geologic age
Enumerated_Domain_Value_Definition_Source:
n/a
Enumerated_Domain:
Enumerated_Domain_Value: Early
Mississippian
Enumerated_Domain_Value_Definition:
geologic age
Enumerated_Domain_Value_Definition_Source: n/a
Enumerated_Domain:
Enumerated_Domain_Value: Late
Devonian
Enumerated_Domain_Value_Definition:
geologic age
Enumerated_Domain_Value_Definition_Source: n/a
Enumerated_Domain:
Enumerated_Domain_Value: Middle Devonian
Enumerated_Domain_Value_Definition:
geologic age
Enumerated_Domain_Value_Definition_Source: n/a
Enumerated_Domain:
Enumerated_Domain_Value: Early
Devonian
Enumerated_Domain_Value_Definition:
geologic age
Enumerated_Domain_Value_Definition_Source: n/a
Enumerated_Domain:
Enumerated_Domain_Value: Middle
Silurian
Enumerated_Domain_Value_Definition:
geologic age
Enumerated_Domain_Value_Definition_Source:
n/a
Enumerated_Domain:
Enumerated_Domain_Value: Early
Silurian
Enumerated_Domain_Value_Definition:
geologic age
Enumerated_Domain_Value_Definition_Source: n/a
Enumerated_Domain:
Enumerated_Domain_Value: Late
Ordovician
Enumerated_Domain_Value_Definition:
geologic age
Enumerated_Domain_Value_Definition_Source: n/a
Enumerated_Domain:
Enumerated_Domain_Value: Middle
Ordovician
Enumerated_Domain_Value_Definition:
geologic age
Enumerated_Domain_Value_Definition_Source: n/a
Enumerated_Domain:
Enumerated_Domain_Value: Early
Ordovician
Enumerated_Domain_Value_Definition:
geologic age
Enumerated_Domain_Value_Definition_Source: n/a
Enumerated_Domain:
Enumerated_Domain_Value: Late
Cambrian
Enumerated_Domain_Value_Definition:
geologic age
Enumerated_Domain_Value_Definition_Source:
n/a
Enumerated_Domain:
Enumerated_Domain_Value: Middle
Proterozoic
Enumerated_Domain_Value_Definition:
geologic age
Enumerated_Domain_Value_Definition_Source: n/a
Attribute:
Attribute_Label: rocktype1
Attribute_Definition: The predominant
lithology found in the formation.
Attribute_Definition_Source: unit classification
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: chert
Enumerated_Domain_Value_Definition:
n/a
Enumerated_Domain_Value_Definition_Source: n/a
Enumerated_Domain:
Enumerated_Domain_Value: gypsum
Enumerated_Domain_Value_Definition:
n/a
Enumerated_Domain_Value_Definition_Source: n/a
Enumerated_Domain:
Enumerated_Domain_Value: shale
Enumerated_Domain_Value_Definition:
n/a
Enumerated_Domain_Value_Definition_Source: n/a
Enumerated_Domain:
Enumerated_Domain_Value: sandstone
Enumerated_Domain_Value_Definition:
n/a
Enumerated_Domain_Value_Definition_Source: n/a
Enumerated_Domain:
Enumerated_Domain_Value: limestone
Enumerated_Domain_Value_Definition:
n/a
Enumerated_Domain_Value_Definition_Source: n/a
Enumerated_Domain:
Enumerated_Domain_Value: dolostone
Enumerated_Domain_Value_Definition:
n/a
Enumerated_Domain_Value_Definition_Source: n/a
Enumerated_Domain:
Enumerated_Domain_Value: granite
Enumerated_Domain_Value_Definition:
n/a
Enumerated_Domain_Value_Definition_Source: n/a
Enumerated_Domain:
Enumerated_Domain_Value: water
Enumerated_Domain_Value_Definition:
n/a
Enumerated_Domain_Value_Definition_Source: n/a
Attribute:
Attribute_Label: rocktype2
Attribute_Definition: The second most
predominant lithology in the formation.
Attribute_Definition_Source: unit classification
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: chert
Enumerated_Domain_Value_Definition: n/a
Enumerated_Domain_Value_Definition_Source: n/a
Enumerated_Domain:
Enumerated_Domain_Value: shale
Enumerated_Domain_Value_Definition:
n/a
Enumerated_Domain_Value_Definition_Source:
n/a
Enumerated_Domain:
Enumerated_Domain_Value: claystone
Enumerated_Domain_Value_Definition:
n/a
Enumerated_Domain_Value_Definition_Source: n/a
Enumerated_Domain:
Enumerated_Domain_Value: siltstone
Enumerated_Domain_Value_Definition:
n/a
Enumerated_Domain_Value_Definition_Source: n/a
Enumerated_Domain:
Enumerated_Domain_Value: sandstone
Enumerated_Domain_Value_Definition:
n/a
Enumerated_Domain_Value_Definition_Source: n/a
Enumerated_Domain:
Enumerated_Domain_Value: limestone
Enumerated_Domain_Value_Definition:
n/a
Enumerated_Domain_Value_Definition_Source:
n/a
Enumerated_Domain:
Enumerated_Domain_Value: dolostone
Enumerated_Domain_Value_Definition:
n/a
Enumerated_Domain_Value_Definition_Source: n/a
Enumerated_Domain:
Enumerated_Domain_Value: gneiss
Enumerated_Domain_Value_Definition:
n/a
Enumerated_Domain_Value_Definition_Source: n/a
Detailed_Description:
Entity_Type:
Entity_Type_Label: ia_geol.aat
Entity_Type_Definition: Arc attribute
table for Iowa geologic coverage.
Entity_Type_Definition_Source: ESRI
Attribute:
Attribute_Label: arc-code
Attribute_Definition: Unique
identifier for the line feature
Attribute_Definition_Source:
AAT data dictionary, Appendix H
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 1
Enumerated_Domain_Value_Definition:
contact, location certain
Enumerated_Domain_Value_Definition_Source:
n/a
Enumerated_Domain:
Enumerated_Domain_Value: 7
Enumerated_Domain_Value_Definition:
shoreline or riverbank
Enumerated_Domain_Value_Definition_Source: n/a
Enumerated_Domain:
Enumerated_Domain_Value: 124
Enumerated_Domain_Value_Definition:
state boundary
Enumerated_Domain_Value_Definition_Source: n/a
Attribute:
Attribute_Label: arc-para1
Attribute_Definition: Used for "decorated"
lines where additional information is
needed.
Attribute_Definition_Source: AAT data
dictionary n/a
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 0
Enumerated_Domain_Value_Definition: no
additional information
Enumerated_Domain_Value_Definition_Source: n/a
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 1
Enumerated_Domain_Value_Definition:
for normal faults, upthrown side is to
the right
Enumerated_Domain_Value_Definition_Source: n/a
Attribute:
Attribute_Label: arc-para2
Attribute_Definition: "Scratch" field used mostly
in Alaska.
Attribute_Definition_Source: AAT data
dictionary
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 0
Enumerated_Domain_Value_Definition:
no additional information
Enumerated_Domain_Value_Definition_Source: n/a
Attribute:
Attribute_Label: source
Attribute_Definition: A coded reference
citation indicating source material
used.
Attribute_Definition_Source: AAT data
dictionary
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: IA001
Enumerated_Domain_Value_Definition:
n/a
Enumerated_Domain_Value_Definition_Source:
Iowa Department of Natural
Resources, 1969, Bedrock Geology of Iowa:
Iowa Department of Natural
Resources, Iowa CIty, Iowa. 1:500,000
online at
ftp://ftp.igsb.uiowa.edu/gis_library/IA_state/Geologic/Bedrock/
Bedrock_geology.zip.
Enumerated_Domain:
Enumerated_Domain_Value: US001
Enumerated_Domain_Value_Definition:
n/a
Enumerated_Domain_Value_Definition_Source:
Johnson, Bruce R. and Leveritch,
Beth, 1998, 1:100,000 Scale State
Boundaries of the Conterminous
United States: U.S. Geological Survey,
unpublished (see metadata file:
st100kmeta.txt, Chapter A).
Overview_Description:
Entity_and_Attribute_Overview:
Coding for polygon attributes:
NAME: FEATURE:
orig_label unmodified map unit symbols from source
cover
sgmc_label orig_label modified for standard geologic
age symbols and an
integer code added for province
unit_link sgmc_label and a state code identifier
source reference to source of data
unit_age geologic age
rocktype1 predominant lithology
rocktype2 second most predominant lithology
Coding for arc attributes:
NAME: FEATURE:
arc-code unique integer identifier
arc-para1 used where additional information is needed
arc-para2 scratch field
source reference to source of data
Coding for point attributes:
NAME: FEATURE:
point_feature name of feature on map
source reference to source of data
Coding for dikes (special arcs)
attributes:
NAME: FEATURE:
orig_label unmodified map unit symbols from source
cover
sgmc_label orig_label modified for standard geologic
age symbols and an
integer code added for province
arc-code
unique integer identifier
dike_lith
general lithology
dike_age geologic age
source reference to source of data
Entity_and_Attribute_Detail_Citation:
ESRI
Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological
Survey Information Services
Contact_Address:
Address_Type: mailing and physical
address
Address:
U.S. Geological Survey
507 National Center
City: Reston
State_or_Province: Virginia
Postal_Code: 20192
Country: USA
Contact_Voice_Telephone:
1-888-ASK-USGS
or
1-703-648-5953
Contact_Electronic_Mail_Address:
http://www.usgs.gov/contact/
Distribution_Liability:
This report is preliminary and has not
been reviewed for conformity with
U.S. Geological Survey (USGS) editorial
standard nor with the North American
stratigraphic codes. Any use of trade, product, or firm names is
for
descriptive purposes only and does not
imply endorsement by the USGS.
Although these data have been used by the
USGS and have been successfully
imported into data base programs, no
warranty, expressed or implied, is made
by the USGS as to how successfully or
accurately the data can be imported into
any specific application software running
on any specific hardware platform.
The fact of distribution shall not
constitute any such warranty, and no
responsibility is assumed by the USGS in
connection therewith.
This data base GIS is not meant to be
used or displayed at any scale other than
1:500,000.
Resource_Description: USGS OFR 2005-1351
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: ARC/INFO
export
Format_Version_Number: 9.1
Format_Information_Content:
Geologic units and structural features
File_Decompression_Technique: gzip and tar
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://pubs.usgs.gov/of/2005/1351
Fees: none
Metadata_Reference_Information:
Metadata_Date: 2005 02
Metadata_Review_Date: 2005 02
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological
Survey
Contact_Person: Gregory N. Green
Contact_Address:
Address_Type: mailing and physical
address
Address: MS 973, USGS, Denver Federal
Center
City: Denver
State_or_Province: CO
Postal_Code: 80225
Country: USA
Contact_Voice_Telephone: 1-303-236-5390
Contact_Electronic_Mail_Address:
ggreen@usgs.gov
Metadata_Standard_Name: FGDC Content
Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998