Open-File Report 99-362 Metadata

Metadata:

Identification_Information:

Citation:

Citation_Information:

Originator: Nelson, Steven W.

Originator: Miller, Marti L.

Originator: Haeussler, Peter J.

Originator: Snee, Lawrence W.

Originator: Phillips, Patti J.

Originator: Huber, Carol

Publication_Date: 1999

Title:

Preliminary geologic map of the Chugach National Forest special study area, Alaska

Geospatial_Data_Presentation_Form: vector digital data

Series_Information:

Series_Name: U.S. Geological Survey Open-File Report
Issue_Identification: OFR 99-362

Online_Linkage:

<http://wrgis.wr.usgs.gov/open-file/of99-362> or <http://geopubs.wr.usgs.gov>

Description:

Abstract:

USGS Open-File Report 99-362 are digital files used to create the published paper map, USGS OFR 99-362. The 1:63,360 scale map shows the bedrock geology of a special study area within the Chugach National Forest, Alaska. Digital files include ARC/Info coverages in export format of geology, structural data, and annotation, and a PDF file of the Open-File Report.

Purpose:

Digital representation of geologic mapping of the Chugach National Forest Special Study Area is to facilitate the presentation and analysis of earth-science data. Digital maps can be displayed at any scale or projection, however the geological data in this coverage is not intended for use at a scale larger than 1:63,360.

Supplemental_Information:

USGS OFR 99-362 digital data consists of the following ARC/Info export files:

chuggeol.e00 - geology

chugstruct.e00 - point structure data

chuganno.e00 - geologic unit labels/annotation

Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 1999

Currentness_Reference: publication date

Status:

Progress: Complete
Maintenance_and_Update_Frequency: Unknown

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: 147.58
East_Bounding_Coordinate: 147.0
North_Bounding_Coordinate: 61.13
South_Bounding_Coordinate: 60.85

Keywords:

Theme:

Theme_Keyword_Thesaurus: None
Theme_Keyword: geology
Theme_Keyword: bedrock

Place:

Place_Keyword_Thesaurus: None
Place_Keyword: Chugach National Forest
Place_Keyword: Prince William Sound
Place_Keyword: Glacier Island
Place_Keyword: Columbia Glacier
Place_Keyword: Kadin Lake
Place_Keyword: Terentiev Lake
Place_Keyword: Miners Lake
Place_Keyword: Unakwik Inlet
Place_Keyword: Wells Bay
Place_Keyword: Long Bay
Place_Keyword: Cedar Bay
Place_Keyword: Granite Bay
Place_Keyword: Miners Bay
Place_Keyword: Growler Bay

Access_Constraints: None

Use_Constraints: None

Point_of_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey
Contact_Person: Peter J. Haeussler

Contact_Position: Geologist

Contact_Address:

Address_Type: mailing and physical address
Address: 4200 University Drive
City: Anchorage
State_or_Province: AK
Postal_Code: 99508-4667
Country: USA

Contact_Voice_Telephone: 907-561-1181

Contact_Electronic_Mail_Address: pheuslr@usgs.gov

Browse_Graphic:

Browse_Graphic_File_Name: of99-362.pdf
Browse_Graphic_File_Description:: OFR99-362 with geologic map, text, tables (fossil ages, 40Ar/39Ar radiometric ages, major element geochemistry, Sr and Nd isotopic data), description of geologic units, correlation of map units, and references.
Browse_Graphic_File_Type: PDF - Adobe portable document format

Data_Set_Credit: Patti J. Phillips, Kelly M. Brunt (Raytheon contractor)

Native_Data_Set_Environment:

Data set was created using ESRI ARC/Info version 7 on a Unix platform.

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:: The linework was captured by hand digitizing from hand-drawn 1:63,360-scale stable base mylar maps in good condition. Vector and polygon attributes were obtained from field maps and compilations. The digital data has been visually checked and the geologic map has undergone technical review.

Logical_Consistency_Report:

The geology data set, chuggeol, is a network coverage containing arcs and polygons. Each polygon has a coded attribute designating the mapped geologic unit. Faults and stratigraphic contacts are represented as arcs. When a fault is also a stratigraphic contact, only a single arc is present. Dangling arcs may be present (faults, dikes, etc.)

The data set, chugstruct, is a point coverage containing annotation. This coverage displays the strike and dip measurements of beds and folds.

Completeness_Report:

The digital data files are the geospatial files used to created the geologic map. They do not include the tables, text or figures shown in the Open-File Report.

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:: Users of this digital geologic map should respect the intentions of the original mappers and the limitations of the map. This geologic map is intended to be used at a scale of 1:63,360; it is not intended to be used at a more detailed scale.

Lineage:

Process_Step:

Process_Description:: Linework was captured by hand digitizing from a stable base line drawing. The digital linework was edited and attributed using ARC/Info. The coverage was built for polygon topology, and had labels created and attributed. For purpose of distribution, the coverage has been converted to an interchange format file using the ARC/Info export command.
Process_Date: 1999

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Vector

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Planar:

Grid_Coordinate_System:

Grid_Coordinate_System_Name: Universal Transverse Mercator

Universal_Transverse_Mercator:

UTM_Zone_Number: 6

Transverse_Mercator:

Scale_Factor_at_Central_Meridian: 0.9996
Longitude_of_Central_Meridian: -147.0
Latitude_of_Projection_Origin: 0.0
False_Easting: 500000
False_Northing: 0.0

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method: coordinate pair

Coordinate_Representation:

Abscissa_Resolution: 200
Ordinate_Resolution: 200

Planar_Distance_Units: meters

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: arcs
Entity_Type_Definition:: Characteristic of arcs in the arc attribute table of the geology coverage.
Entity_Type_Definition_Source: USGS OFR 99-362

Attribute:

Attribute_Label: arc-code

Attribute_Definition:

Arc-code is a positive integer value (3 3 I) item in the arc attribute table. Values range from 1-99. Arc-code describes the type of line feature.

Attribute_Definition_Source: USGS OFR 99-362

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 1
Enumerated_Domain_Value_Definition: Stratigraphic or intrusive contact, location certain

Enumerated_Domain:

Enumerated_Domain_Value: 4
Enumerated_Domain_Value_Definition: Cross-section line

Enumerated_Domain:

Enumerated_Domain_Value: 7
Enumerated_Domain_Value_Definition: Shoreline or riverbank

Enumerated_Domain:

Enumerated_Domain_Value: 15
Enumerated_Domain_Value_Definition: Ice contact

Enumerated_Domain:

Enumerated_Domain_Value: 18
Enumerated_Domain_Value_Definition: Internal contact

Enumerated_Domain:

Enumerated_Domain_Value: 50
Enumerated_Domain_Value_Definition: Quartz vein, mineralized and unmineralized

Enumerated_Domain:

Enumerated_Domain_Value: 51
Enumerated_Domain_Value_Definition: Concealed contact

Enumerated_Domain:

Enumerated_Domain_Value: 52
Enumerated_Domain_Value_Definition: Concealed fault

Enumerated_Domain:

Enumerated_Domain_Value: 77
Enumerated_Domain_Value_Definition: Fault, location certain

Enumerated_Domain:

Enumerated_Domain_Value: 79
Enumerated_Domain_Value_Definition: Fault, location approximate

Enumerated_Domain:

Enumerated_Domain_Value: 93
Enumerated_Domain_Value_Definition: Lineament identified from air photos. Possible fault.

Enumerated_Domain:

Enumerated_Domain_Value: 99
Enumerated_Domain_Value_Definition: Bounding line of coverage

Detailed_Description:

Entity_Type:

Entity_Type_Label: polygons
Entity_Type_Definition:: Characteristic of the polygon features are coded in the pat, polygon attribute table. The pat consists of the following items: CLASS (4 5 B), and UNIT (geologic unit label).
Entity_Type_Definition_Source: USGS OFR 99-362

Attribute:

Attribute_Label: class

Attribute_Definition:

Class is a positive integer value (4 5 B) item in the polygon attribute table. Values range from 0-128. There is a lookup table, chuggeol.lut, which contains the class, label, and color symbol number of each geologic unit. See USGS OFR 99-362 for full description of the geologic units.

Attribute_Definition_Source: USGS OFR 99-362

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 5
Enumerated_Domain_Value_Definition: Ice

Enumerated_Domain:

Enumerated_Domain_Value: 7
Enumerated_Domain_Value_Definition: Q - Surficial deposits, undivided (Holocene)

Enumerated_Domain:

Enumerated_Domain_Value: 33
Enumerated_Domain_Value_Definition:: Tosg - Orca Group shale or argillite (Lithofacies G) (Eocene and Paleocene)

Enumerated_Domain:

Enumerated_Domain_Value: 57
Enumerated_Domain_Value_Definition: Water

Enumerated_Domain:

Enumerated_Domain_Value: 67
Enumerated_Domain_Value_Definition:: Kvsbd - Valdez Group massive sandstone and rythmite (Lithofacies B and D) (Upper Cretaceous)

Enumerated_Domain:

Enumerated_Domain_Value: 69
Enumerated_Domain_Value_Definition:: Kvsc - Valdez Group 'typical' turbidites (Lithofacies C) (Upper Cretaceous)

Enumerated_Domain:

Enumerated_Domain_Value: 70
Enumerated_Domain_Value_Definition:: Tkvv - Volcanic and sedimentary rocks, undivided (Late Cretaceous and Tertiary)

Enumerated_Domain:

Enumerated_Domain_Value: 73
Enumerated_Domain_Value_Definition:: Kvsb - Valdez Group massive sandstone (Lithofacies B) (Upper Cretaceous)

Enumerated_Domain:

Enumerated_Domain_Value: 85
Enumerated_Domain_Value_Definition:: Tosbd - Orca Group massive sandstone and rythmite (Lithofacies B) (Eocene and Paleocene)

Enumerated_Domain:

Enumerated_Domain_Value: 86
Enumerated_Domain_Value_Definition:: Tosb - Orca Group massive sandstone (Lithofacies B) (Eocene and Paleocene)

Enumerated_Domain:

Enumerated_Domain_Value: 88
Enumerated_Domain_Value_Definition:: Tosf - Orca Group chaotic deposits (Lithofacies F) (Eocene and Paleocene)

Enumerated_Domain:

Enumerated_Domain_Value: 93
Enumerated_Domain_Value_Definition:: Tosc - Orca Group 'typical' turbidites (Lithofacies C) (Eocene and Paleocene)

Enumerated_Domain:

Enumerated_Domain_Value: 96
Enumerated_Domain_Value_Definition:: Tosa - Orca Group conglomerate (Lithofacies A) (Eocene and Paleocene)

Enumerated_Domain:

Enumerated_Domain_Value: 97
Enumerated_Domain_Value_Definition:: Tosd - Orca Group rythmite (Lithofacies D) (Eocene and Paleocene)

Enumerated_Domain:

Enumerated_Domain_Value: 107
Enumerated_Domain_Value_Definition: Tf - Felsite dikes (Tertiary)

Enumerated_Domain:

Enumerated_Domain_Value: 112
Enumerated_Domain_Value_Definition: Tgd - Gabbro and diorite of Miners Bay (Oligocene)

Enumerated_Domain:

Enumerated_Domain_Value: 119
Enumerated_Domain_Value_Definition: Tg - Leucocratic granite (Oligocene)

Enumerated_Domain:

Enumerated_Domain_Value: 120
Enumerated_Domain_Value_Definition: Tosv - Orca Group volcaniclastic rocks (Eocene and Paleocene)

Enumerated_Domain:

Enumerated_Domain_Value: 123
Enumerated_Domain_Value_Definition: Top - Orca Group pillow basalt (Eocene and Paleocene)

Enumerated_Domain:

Enumerated_Domain_Value: 126
Enumerated_Domain_Value_Definition: Tod - Orca Group sheeted dikes (Eocene and Paleocene)

Attribute:

Attribute_Label: unit

Attribute_Definition: Geologic unit label

Attribute_Definition_Source: USGS 99-362

Attribute_Domain_Values:

Unrepresentable_Domain: Text field

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: USGS Information Services

Contact_Address:

Address_Type: mailing address
Address:: Box 25286 Denver Federal Center
City: Denver
State_or_Province: Co
Postal_Code: 80225-0046
Country: USA

Contact_Voice_Telephone: 303-202-4200 or 1-888-ASK-USGS

Resource_Description: USGS OFR 99-362 (digital)

Distribution_Liability:

Although this data has been used by the USGS, no warranty, expressed or implied, is made by the USGS 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 USGS in the use of these data, software, or related materials.

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Format_Name: ARCE

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name: <http://wrgis.wr.usgs.gov/open-file/of99-362>

Fees: none

Metadata_Reference_Information:

Metadata_Date: 19990927

Metadata_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey
Contact_Person: Nora Shew

Contact_Address:

Address_Type: mailing and physical address
Address: 4200 University Drive
City: Anchorage
State_or_Province: AK
Postal_Code: 99508-4667
Country: USA

Contact_Voice_Telephone: 907-561-1181

Contact_Electronic_Mail_Address: nshew@usgs.gov

Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata

Metadata_Standard_Version: FGDC-STD-001-1998

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