1002 Surficial Geology

Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: U.S. Geological Survey, EROS Alaska Field Office
Publication_Date: Unknown
Title: 1002 Surficial Geology
Online_Linkage: <URL:http://agdc.usgs.gov/data/projects/anwr/anwr.html>
Description:
Abstract:
This dataset is a depiction of surficial geology for the 1002
study area of the Arctic National Wildlife Refuge. These data
were compiled and mapped by U.S. Geological Survey, Geological
Mapping Division at a source scale of 1:250000 and represents
35 geological units. This database is based on the USGS Open File
report 86-334, Engineering-Geologic Maps of Northern Alaska, Coastal
Plain and Foothills of the Arctic National Wildlife Refuge for
the 1002 Study Area.
Purpose:
This dataset provides engineering geology, engineering contrainsts, site planning, sand and gravel deposits and permafrost areas for the ANWR environmental resource investigations.
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 19880700
Currentness_Reference: Publication date
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -147.0
East_Bounding_Coordinate: -141.0
North_Bounding_Coordinate: 70.3
South_Bounding_Coordinate: 69.5
Keywords:
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: SURFICIAL GEOLOGY
Place:
Place_Keyword_Thesaurus: ANWR
Place_Keyword: Arctic National Wildlife Refuge
Place_Keyword: 1002 study area
Access_Constraints: None
Use_Constraints: None, request that USGS be noted as the source.
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey, EROS Alaska Field Office
Contact_Person: Emily Binnian
Contact_Address:
Address_Type: mailing and physical address
Address: 4230 University Drive
City: Anchorage
State_or_Province: Alaska
Postal_Code: 99508
Contact_Voice_Telephone: (907) 786-7020
Contact_Electronic_Mail_Address: binnian@usgs.gov
Native_Data_Set_Environment: UNKNOWN
Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
The geologic report that this dataset is based on is preliminary and has not been edited or reviewed for conformity with U.S. Geological Survey editorial standards and stratigraphic nomenclature.
Logical_Consistency_Report:
All polygon features are checked for topology using Arc/INFO software. Each polygon begins and ends with a node feature. All nodes are checked for errors so that there are no dangling features. There are no duplicate lines or polygons. All nodes will snap together and close polygons based on a specified tolerance. If the node is not within the tolerance it is adjusted manually. The tests for logical consistency are performed in Arc/INFO.
Completeness_Report: Unknown
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report: Unknown
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: United States Geological Survey
Publication_Date: 19860000
Title:
Engineering-Geologic Maps of Northern Alaska, Coastal Plain and Foothills of the Arctic National Wildlife Refuge for the 1002 Study Area
Type_of_Source_Media: Open file report
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 19860000
Source_Currentness_Reference: Publication date
Source_Citation_Abbreviation:
U.S. Geological Survey. 1986. USGS Open File Report 86-334 Engineering-Geologic Maps of Northern Alaska, Coastal Plain and Foothills of the Arctic National Wildlife Refuge for the 1002 Study Area. USGS, Anchorage, AK.
Source_Contribution:
Report compiled by L. David Carter, Oscar J. Ferrians and John Galloway.
Process_Step:
Process_Description:
USGS Geologic units describing surficial geology at a 1:250000 source scale and a 10 meter resolution for the Flaxman Island, Barter Island, Mt. Michelson, and Demarcation Point Quadrangles were hand digitized using ARC/INFO software. These maps were edgematched and built with polygon topology. Attribute files and lookup table were constructed. The DESC.UNIT.LUT were joined with the polygon attribute table through the join item SURFGEO code. The final map was projected into Albers Equal Area projection.
Process_Date: 19880700
Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: Label point
Point_and_Vector_Object_Count: 986
SDTS_Point_and_Vector_Object_Type: String
Point_and_Vector_Object_Count: 2029
SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains
Point_and_Vector_Object_Count: 987
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Map_Projection:
Map_Projection_Name: Albers Conical Equal Area
Albers_Conical_Equal_Area:
Standard_Parallel: 55
Standard_Parallel: 65
Longitude_of_Central_Meridian: -154
Latitude_of_Projection_Origin: 50
False_Easting: 0
False_Northing: 0
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: Coordinate pair
Coordinate_Representation:
Abscissa_Resolution: Unknown
Ordinate_Resolution: Unknown
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: SURFGEOL
Entity_Type_Definition:
3 Byte numeric code linking to lookup table DESC.UNIT.LUT. The lookup table stores the geologic unit descriptions and contains the attributes: SURFGEOL, UNITABV (2-4 character long abbreviation for the associated Geologic Unit), and UNITNAME.

SURFGEOL UNITNAME -ABBREVIATION 101 Water - 102 Ocean - 103 Lagoon - 104 Lake - 110 Icing - 115 Glacier - 150 Unmapped - 210 Thermokarst deposits - Qt 215 Alluvium - Qal 220 Deltaic deposits - Qd 225 Beach deposits - Qb 230 Eolian silt and sand over marine silt and clay - Qsm 235 Eolian silt and sand over alluvium - Qsa 240 Fluvial gravel and gravelly sand - Qg 245 Eolian silt and sand over fluvial gravel and gravelly sand- Qsg 250 Colluvial deposits - Qc 255 Debris flow deposits - Qdf 260 Younger glacial drift - Qdg3 265 Younger glacial drift - Qdg2 270 Younger glacial drift - Qdg1 275 Older glacial drift - QTgd 280 Gravel - QTg 285 Eolian silt and sand over fluvial gravel and gravelly sand- QTsg 290 Fluvial gravel over marine sand, silt, and clay - QTgm 295 Aluvial and eolian sand and marine sand and silt - QTas 310 Siltstone, shale, and sandstone - Ts 320 Conglomerate - Tcg 330 Muddy conglomerate - Tcgm 370 Conglomerate, sandstone, and siltstone - TKcg 410 Pyroclastic rocks - Kp 420 Sandstone, siltstone, and shale - KJss 470 Sandstone, siltstone, and quartzite - TrPs 650 Volcaniclastic and volcanic rocks - Ovc 910 Limestone and dolomite - ld 920 Slate, phyllite, argillite, quartzite, and chert - sc

Entity_Type_Definition_Source: U.S. Geological Survey
Overview_Description:
Entity_and_Attribute_Overview: 
1 of 35 Geologic Unit Description Look-up Codes.
The polygon attribute table contains the attribute named SURFGEOL that
can be used as a LOOK-UP item with the INFO database named DESC.UNIT
Entity_and_Attribute_Detail_Citation:
U.S. Geological Survey. 1986. USGS Open File Report 86-334 Engineering-Geologic Maps of Northern Alaska, Coastal Plain and Foothills of the Arctic National Wildlife Refuge for the 1002 Study Area. USGS, Anchorage, AK.
Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: USGS, Alaska Geospatial Data Clearinghouse
Contact_Person:
Contact_Address:
Address_Type: mailing and physical address
Address: 4230 University Drive
City: Anchorage
State_or_Province: Alaska
Postal_Code: 99508-4664
Contact_Voice_Telephone: (907) 786-7020
Distribution_Liability:
Although these data have been processed successfully on a computer system at the U.S. Geological Survey, no warranty expressed or implied is made regarding the accuracy of utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. This disclaimer applies both to individual use of the data and aggregate use with other data. It is strongly recommended that these data are directly acquired from a U.S. Geological Survey server, and not indirectly through other sources which may have changed the data in some way. It is also strongly recommended that careful attention be paid to the contents of the metadata file associated with these data. The U.S. Geological Survey shall not be held liable for improper or incorrect use of the data described and/or contained herein.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name:
gzip-compressed TAR-archive of ARC/INFO export (.e00) file. ARC/INFO export compression = NONE and an INFO export file named desc.unit.e00
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
<URL:http://agdcftp1.wr.usgs.gov/pub/projects/anwr/tar_files/surfgeo.tar.gz>
Fees: None
Metadata_Reference_Information:
Metadata_Date: 19971001
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:
USGS Biological Resources Div., Alaska Biological Science Center
Contact_Person: David C. Douglas
Contact_Address:
Address_Type: mailing address
Address: 1011 East Tudor Road
City: Anchorage
State_or_Province: Alaska
Postal_Code: 99503
Country: USA
Contact_Voice_Telephone: 907-786-3512
Contact_Electronic_Mail_Address: david_douglas@usgs.gov
Contact_Instructions:
The USGS/BRD Alaska Biological Science Center will be making an effort to keep the information provided in these metadata records current. Please send corrections, additions and suggestions for improvement to David Douglas at the above address.
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: June 8, 1994
Generated by mp on Tue Oct 7 16:44:18 1997