Preliminary integrated geologic map databases for the United States: Digital data for the reconnaissance geologic map for the Kuskokwim Bay region of southwest Alaska

Metadata:

• Identification_Information
• Data_Quality_Information
• Spatial_Data_Organization_Information
• Spatial_Reference_Information
• Entity_and_Attribute_Information
• Distribution_Information
• Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator: Wilson, Frederic H.

Originator: Hults, Chad P.

Originator: Mohadjer, Solmaz

Originator: Coonrad, Warren L.

Originator: Labay, Keith A.

Originator: Shew, Nora

Publication_Date: 2008

Title:

Preliminary integrated geologic map databases for the United States: Digital data for the reconnaissance geologic map for the Kuskokwim Bay region of southwest Alaska

Edition: ver. 1.0

Geospatial_Data_Presentation_Form: vector digital data

Series_Information:

Series_Name: U.S. Geological Survey Open-File Report

Issue_Identification: OFR 2008-1001

Online_Linkage: <https://pubs.usgs.gov/of/2008/1001>

Larger_Work_Citation:

Citation_Information:

Originator: Wilson, Frederic H.

Originator: Hults, Chad P.

Originator: Mohadjer, Solmaz

Originator: Coonrad, Warren L.

Publication_Date: Unknown

Title:

Reconnaissance geologic map for the Kuskokwim Bay region of southwest Alaska

Geospatial_Data_Presentation_Form: map

Series_Information:

Series_Name: U.S. Geological Survey Open-File Report

Issue_Identification: OFR 2008-1001

Description:

Abstract:

The area of this data set is a collage of loosely defined tectonostratigraphic terranes of widely varying age. The rocks of the area range from Proterozoic age metamorphic rocks of the Kanektok metamorphic complex (Kilbuck terrane) to Quaternary age mafic volcanic rocks of Nunivak Island. The map area encompasses much of the type area of the Togiak-Tikchik Complex. The geologic maps used to construct this compilation are for the most part, reconnaissance studies done in the time period from the 1950's to the 1990's. Pioneering work in the map area by J.M. Hoare and W.L. Coonrad forms the basis for much of this map, either directly or as the stepping off point for later studies compiled here.

This data set is a portion of a statewide geology database, which is being compiled by the U.S. Geological Survey's National Surveys and Analysis (NSA) project, whose goal is to compile geologic, geochemical, geophysical, and other data.

Purpose:

This data set represents part of a systematic effort to release geologic map data for the United States in a uniform manner. Geologic data in this series has been compiled from a wide variety of sources, published and unpublished, ranging from state and regional geologic maps to large- scale field mapping.

Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 2008

Currentness_Reference: publication date

Status:

Progress: Complete

Maintenance_and_Update_Frequency: As needed

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -174.0

East_Bounding_Coordinate: -158.0

North_Bounding_Coordinate: 61.0

South_Bounding_Coordinate: 56.4

Keywords:

Theme:

Theme_Keyword_Thesaurus: None

Theme_Keyword: geology

Theme_Keyword: bedrock

Place:

Place_Keyword_Thesaurus: Geographic names information system (GNIS)

Place_Keyword: Alaska

Place_Keyword: soutwest

Place_Keyword: Saint Matthew

Place_Keyword: Pribilof Islands

Place_Keyword: Nunivak Island

Place_Keyword: Cape Mendenhall

Place_Keyword: Baird Inlet

Place_Keyword: Kuskokwim Bay

Place_Keyword: Bethel

Place_Keyword: Goodnews Bay

Place_Keyword: Hagemeister Island

Place_Keyword: Nushagak Bay

Access_Constraints: None

Use_Constraints:

None. Acknowledgment of the U.S. Geological Survey would be appreciated in products derived from these data.

Point_of_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey

Contact_Person: Frederic H. Wilson

Contact_Position: Geologist

Contact_Address:

Address_Type: mailing and physical

Address: 4200 University Drive

City: Anchorage

State_or_Province: Alaska

Postal_Code: 99508-4667

Country: U.S.A.

Contact_Voice_Telephone: 907-786-7448

Contact_Electronic_Mail_Address: fwilson@usgs.gov

Browse_Graphic:

Browse_Graphic_File_Name: ????

Browse_Graphic_File_Description: ????

Browse_Graphic_File_Type: ????

Data_Set_Credit:

This data set was prepared by Frederic H. Wilson (USGS), Chad P. Hults (USGS), Solmaz Mohadjer (contractor), Keith A. Labay (contractor), and Nora Shew (USGS)

Native_Data_Set_Environment:

Data set was created using ESRI ARC/Info version 7.2.1 on a Unix platform

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

There were many types of source materials, of varying scale, used to compile this data set. Sources include previously published maps, unpublished mapping, and air photo interpretation. The dates of the mapping range from the 1950's to the 1990's. Vector features were digitized on a large digitizing tablet or on screen. Vector and polygon attributes were assigned based on the original source. The digital data has been checked and the geologic map has been technically reviewed and edited.

Logical_Consistency_Report:

Each geology coverage is a network coverage containing attributed arcs and polygons. Each polygon has a coded attribute designating the mapped geologic unit. Faults, stratigraphic contacts, and other linear features 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.)

Completeness_Report:

The complete data set consists of 10 separate GIS coverages. There is also an associated relational database of geologic units. Each coverage has the extent of a 1:250,000 scale quadrangle. A graphic representation of the database and a report with complete geologic unit descriptions is provided in .pdf format.

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:

This data is presented for use at a nominal scale of 1:500,000, although some sources were from 1:250,000 scale mapping.

Lineage:

Process_Step:

Process_Description:

Linework for the geology compilation was hand digitized from material of various media and scale. The arcs and polygons were attributed. The spatial databases are provided in UTM projection and geographic coordinates. The native ARC/Info coverages have been exported to an interchange file format, .e00, and also converted to ArcView shape files.

Process_Date: 2008

Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey

Contact_Person: Frederic H. Wilson

Contact_Position: Geologist

Contact_Address:

Address_Type: mailing and physical

Address: 4200 University Drive

City: Anchorage

State_or_Province: Alaska

Postal_Code: 99508-4667

Country: U.S.A.

Contact_Voice_Telephone: 907-786-7445

Contact_Electronic_Mail_Address: fwilson@usgs.gov

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: 2

Transverse_Mercator:

Scale_Factor_at_Central_Meridian: 0.9996

Longitude_of_Central_Meridian: -171.0

Latitude_of_Projection_Origin: 0.0

False_Easting: 500000

False_Northing: 0

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method: coordinate pair

Coordinate_Representation:

Abscissa_Resolution: 0.000256

Ordinate_Resolution: 0.000256

Planar_Distance_Units: meters

Planar:

Grid_Coordinate_System:

Grid_Coordinate_System_Name: Universal Transverse Mercator

Universal_Transverse_Mercator:

UTM_Zone_Number: 3

Transverse_Mercator:

Scale_Factor_at_Central_Meridian: 0.9996

Longitude_of_Central_Meridian: -165.0

Latitude_of_Projection_Origin: 0.0

False_Easting: 500000

False_Northing: 0

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method: coordinate pair

Coordinate_Representation:

Abscissa_Resolution: 0.00256

Ordinate_Resolution: 0.000256

Planar_Distance_Units: meters

Planar:

Grid_Coordinate_System:

Grid_Coordinate_System_Name: Universal Transverse Mercator

Universal_Transverse_Mercator:

UTM_Zone_Number: 4

Transverse_Mercator:

Scale_Factor_at_Central_Meridian: 0.9996

Longitude_of_Central_Meridian: -159.0

Latitude_of_Projection_Origin: 0.0

False_Easting: 500000

False_Northing: 0

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method: coordinate pair

Coordinate_Representation:

Abscissa_Resolution: 0.000256

Ordinate_Resolution: 0.000256

Planar_Distance_Units: meters

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: polygons

Entity_Type_Definition:

Characteristics of the polygon features in the geology coverages are coded in the polygon attribute table. The table <cov>.pat includes the following items: CLASS, NSACLASS, NSAMOD, QCLASS (not used), SOURCE, LABEL, MIN_AGE, and MAX_AGE.

Entity_Type_Definition_Source: this data set

Attribute:

Attribute_Label: NSACLASS

Attribute_Definition:

NSACLASS is a positive integer value (4 5 B) item in the polygon attribute table. Values range discontinuously from 98 to 9420. NSACLASS is a numeric code for the geologic unit. This data set represents a generalized geologic map, thus it is possible that a geologic unit is made of multiple NSACLASS values. NSACLASS to LABEL is a many-to-one relationship. Each LABEL has a mininum (MIN_AGE) and maximum (MAX_AGE) age range, given in million of years (my).

Supplemental attribute tables included with this data set, contain additional descriptive information of each geologic unit. A user may use items SOURCE and CLASS to retrieve information about the original units from which these generalized units were formed.

NOTE: Because of the limitations of common GIS fonts, the letter combinations "Tr", "Mz", and "Pz" are substituted for the standard age symbols for "Triassic", "Mesozoic", and "Paleozoic."

Attribute_Definition_Source: This data set

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 98

Enumerated_Domain_Value_Definition: un - unmapped area

Enumerated_Domain:

Enumerated_Domain_Value: 100

Enumerated_Domain_Value_Definition: Qs - Surficial deposits, undivided (Quaternary)

Enumerated_Domain:

Enumerated_Domain_Value: 101

Enumerated_Domain_Value_Definition: ice

Enumerated_Domain:

Enumerated_Domain_Value: 102

Enumerated_Domain_Value_Definition: water

Enumerated_Domain:

Enumerated_Domain_Value: 103

Enumerated_Domain_Value_Definition: Qtf - Tidal flat and active estuarine deposits (Holocene)

Enumerated_Domain:

Enumerated_Domain_Value: 105

Enumerated_Domain_Value_Definition: Qa - Alluvial deposits (Quaternary)

Enumerated_Domain:

Enumerated_Domain_Value: 113

Enumerated_Domain_Value_Definition: Qrs - Reworked silt (Quaternary)

Enumerated_Domain:

Enumerated_Domain_Value: 115

Enumerated_Domain_Value_Definition: Qb - Beach deposits (Quaternary)

Enumerated_Domain:

Enumerated_Domain_Value: 116

Enumerated_Domain_Value_Definition: Qes - Estuarine deposits (Quaternary)

Enumerated_Domain:

Enumerated_Domain_Value: 117

Enumerated_Domain_Value_Definition: Qmt - Marine terraces (Quaternary)

Enumerated_Domain:

Enumerated_Domain_Value: 119

Enumerated_Domain_Value_Definition:

Qed - Eolian deposits (Quaternary)

Enumerated_Domain:

Enumerated_Domain_Value: 120

Enumerated_Domain_Value_Definition: Qed - Eolian deposits (Quaternary)

Enumerated_Domain:

Enumerated_Domain_Value: 121

Enumerated_Domain_Value_Definition: Qsd - Silt deposits (Quaterary)

Enumerated_Domain:

Enumerated_Domain_Value: 125

Enumerated_Domain_Value_Definition: Qg - Glacial deposits, undivided (Quaternary)

Enumerated_Domain:

Enumerated_Domain_Value: 135

Enumerated_Domain_Value_Definition: Qgm - Glacial moraine (Quaternary)

Enumerated_Domain:

Enumerated_Domain_Value: 140

Enumerated_Domain_Value_Definition: Qgo - Outwash deposits (Quaternary)

Enumerated_Domain:

Enumerated_Domain_Value: 282

Enumerated_Domain_Value_Definition:

QTs - Semiconsolidated marine beach deposits (Quaternary, Pleistocene or Tertiary)

Enumerated_Domain:

Enumerated_Domain_Value: 310

Enumerated_Domain_Value_Definition: Qpd - Pyroclastic rocks (Quaternary)

Enumerated_Domain:

Enumerated_Domain_Value: 317

Enumerated_Domain_Value_Definition: Qvs - Volcaniclastic sediment (Quaternary)

Enumerated_Domain:

Enumerated_Domain_Value: 320

Enumerated_Domain_Value_Definition: Qcs - Alkalic basalt of Karon Lake (Quaternary)

Enumerated_Domain:

Enumerated_Domain_Value: 330

Enumerated_Domain_Value_Definition: Qvb - Basalt flows, undivided (Quaternary, Pleistocene)

Enumerated_Domain:

Enumerated_Domain_Value: 350

Enumerated_Domain_Value_Definition: Qvbm - Basalt flows (Quaternary, Matuyama polarity epoch)

Enumerated_Domain:

Enumerated_Domain_Value: 450

Enumerated_Domain_Value_Definition:

QTv - Volcanic rocks, undivided (Quaternary, Pleistocene or Tertiary, Pliocene)

Enumerated_Domain:

Enumerated_Domain_Value: 466

Enumerated_Domain_Value_Definition:

QTab - Older alkalic basalt of Karon Lake (Quaternary, Pleistocene and Tertiary, Pliocene)

Enumerated_Domain:

Enumerated_Domain_Value: 1023

Enumerated_Domain_Value_Definition: Talb - Alkalic basalt of Ahzwiryuk Bluff (Tertiary, Pliocene)

Enumerated_Domain:

Enumerated_Domain_Value: 1024

Enumerated_Domain_Value_Definition: Ttb - Tholeiitic basalt of Binakslit Bluff (Tertiary, Pliocene)

Enumerated_Domain:

Enumerated_Domain_Value: 1053

Enumerated_Domain_Value_Definition: Tfi - Felsic intrusive rocks (Tertiary, Miocene?)

Enumerated_Domain:

Enumerated_Domain_Value: 1110

Enumerated_Domain_Value_Definition: Tnr - Nukluk Volcanic Field, rhyolite (Tertiary, Eocene)

Enumerated_Domain:

Enumerated_Domain_Value: 1111

Enumerated_Domain_Value_Definition:

Tnba - Nukluk Volcanic Field, basalt and andesite (Tertiary, Eocene)

Enumerated_Domain:

Enumerated_Domain_Value: 1120

Enumerated_Domain_Value_Definition: Tvep - Rhyolite and dacite tuff (Tertiary)

Enumerated_Domain:

Enumerated_Domain_Value: 1301

Enumerated_Domain_Value_Definition: Tad - Aplite on Saint George Island (Tertiary, Eocene)

Enumerated_Domain:

Enumerated_Domain_Value: 1603

Enumerated_Domain_Value_Definition:

TKr - Rhyolite and dacite flows, tuff, dikes, and sills (Early Tertiary and (or) Late Cretaceous)

Enumerated_Domain:

Enumerated_Domain_Value: 1604

Enumerated_Domain_Value_Definition:

TKr - Rhyolite and dacite flows, tuff, dikes, and sills (Early Tertiary and (or) Late Cretaceous)

Enumerated_Domain:

Enumerated_Domain_Value: 1605

Enumerated_Domain_Value_Definition:

TKa - Eek and Swift Creek volcanic fields of Box and others (1993); andesite flows (Early Tertiary and (or) Late Cretaceous)

Enumerated_Domain:

Enumerated_Domain_Value: 1640

Enumerated_Domain_Value_Definition: TMzp - Peridotite on Saint George Island (Tertiary or older)

Enumerated_Domain:

Enumerated_Domain_Value: 1655

Enumerated_Domain_Value_Definition: TKg - Granitic rocks, undivided (Tertiary and (or) Cretaceous)

Enumerated_Domain:

Enumerated_Domain_Value: 1656

Enumerated_Domain_Value_Definition: TKgr - Granite (Tertiary and (or) Cretaceous)

Enumerated_Domain:

Enumerated_Domain_Value: 1657

Enumerated_Domain_Value_Definition: TKgs - Monzonite (Tertiary and (or) Cretaceous)

Enumerated_Domain:

Enumerated_Domain_Value: 1658

Enumerated_Domain_Value_Definition:

TKqm - Quartz monzonite and quartz monzodiorite (Tertiary and (or) Cretaceous)

Enumerated_Domain:

Enumerated_Domain_Value: 1660

Enumerated_Domain_Value_Definition: TKgd - Granodiorite (Tertiary and (or) Cretaceous)

Enumerated_Domain:

Enumerated_Domain_Value: 1665

Enumerated_Domain_Value_Definition:

TKqd - Monzodiorite and quartz diorite (Tertiary and (or) Cretaceous)

Enumerated_Domain:

Enumerated_Domain_Value: 1670

Enumerated_Domain_Value_Definition:

TKm - Mafic intrusive rocks (Tertiary, Paleocene, and Cretaceous?)

Enumerated_Domain:

Enumerated_Domain_Value: 1960

Enumerated_Domain_Value_Definition: Ks - Summit Island Formation (Upper Cretaceous, Maastrichtian?)

Enumerated_Domain:

Enumerated_Domain_Value: 1970

Enumerated_Domain_Value_Definition:

Kk - Kuskokwim Group, undivided (Cretaceous, Campanian? to Albian)

Enumerated_Domain:

Enumerated_Domain_Value: 1985

Enumerated_Domain_Value_Definition:

Kkn - Kuskokwim Group, nearshore facies (Cretaceous, Turonian to Albian)

Enumerated_Domain:

Enumerated_Domain_Value: 2021

Enumerated_Domain_Value_Definition:

Kys - Sandstone, shale, and conglomerate deltaic deposits (Upper Cretaceous?)

Enumerated_Domain:

Enumerated_Domain_Value: 2102

Enumerated_Domain_Value_Definition:

Kcgs - Calcareous graywacke and siltstone of the Eek Mountains belt of Hoare and Coonrad (1983) (Lower Cretaceous, Valanginian)

Enumerated_Domain:

Enumerated_Domain_Value: 2105

Enumerated_Domain_Value_Definition: Kygv - Volcanic graywacke and argillite (Cretaceous?)

Enumerated_Domain:

Enumerated_Domain_Value: 2125

Enumerated_Domain_Value_Definition:

Kgbr - Graywacke of Buchia Ridge (Lower Cretaceous, Valanginian and Hauterivian)

Enumerated_Domain:

Enumerated_Domain_Value: 2150

Enumerated_Domain_Value_Definition:

Klg - Limy grit and limestone of the Ungalikthluk belt of Hoare and Coonrad (1983) (Lower Cretaceous, Valanginian)

Enumerated_Domain:

Enumerated_Domain_Value: 2180

Enumerated_Domain_Value_Definition:

Kvm - Volcanic and sedimentary rocks of the Mount Oratia belt of Hoare and Coonrad (1983) (Lower Cretaceous, Valanginian)

Enumerated_Domain:

Enumerated_Domain_Value: 2210

Enumerated_Domain_Value_Definition:

Kv - Volcanic rocks (Late Cretaceous, Maastrichtian and Campanian)

Enumerated_Domain:

Enumerated_Domain_Value: 2260

Enumerated_Domain_Value_Definition:

Kv - Volcanic rocks (Late Cretaceous, Maastrichtian and Campanian)

Enumerated_Domain:

Enumerated_Domain_Value: 2261

Enumerated_Domain_Value_Definition:

Kv - Volcanic rocks (Late Cretaceous, Maastrichtian and Campanian)

Enumerated_Domain:

Enumerated_Domain_Value: 2265

Enumerated_Domain_Value_Definition:

Kpd - Intermediate and silicic pyroclastic rocks (Late Cretaceous)

Enumerated_Domain:

Enumerated_Domain_Value: 2510

Enumerated_Domain_Value_Definition: Ksp - Serpentinite (Late Cretaceous?)

Enumerated_Domain:

Enumerated_Domain_Value: 2530

Enumerated_Domain_Value_Definition: Kg - Granodiorite and granite (Early Cretaceous)

Enumerated_Domain:

Enumerated_Domain_Value: 2832

Enumerated_Domain_Value_Definition:

KJc - Argillite and tuffaceous chert (Lower Cretaceous and (or) Upper Jurassic)

Enumerated_Domain:

Enumerated_Domain_Value: 2870

Enumerated_Domain_Value_Definition:

KJba - Basaltic and andesitic lava flows (Early Cretaceous and (or) Late Jurassic)

Enumerated_Domain:

Enumerated_Domain_Value: 2872

Enumerated_Domain_Value_Definition:

KTrvs - Volcanic and sedimentary rocks (Lower Cretaceous to Upper Triassic?)

Enumerated_Domain:

Enumerated_Domain_Value: 2885

Enumerated_Domain_Value_Definition:

TJih - Hypabyssal felsic intrusive rocks (earliest Tertiary? to Late Jurassic?)

Enumerated_Domain:

Enumerated_Domain_Value: 2890

Enumerated_Domain_Value_Definition: KJb - Pillow basalt (Lower Cretaceous and (or) Upper Jurassic)

Enumerated_Domain:

Enumerated_Domain_Value: 2900

Enumerated_Domain_Value_Definition:

TJis - Slate Creek pluton of Box and others (1993) (earliest Tertiary? to Late Jurassic?)

Enumerated_Domain:

Enumerated_Domain_Value: 3005

Enumerated_Domain_Value_Definition:

Jvs - Marine volcaniclastic sandstone, conglomerate, and argillite (Jurassic)

Enumerated_Domain:

Enumerated_Domain_Value: 3120

Enumerated_Domain_Value_Definition:

Jvc - Volcaniclastic conglomerate, sandstone, and shale (Upper and Middle Jurassic)

Enumerated_Domain:

Enumerated_Domain_Value: 3130

Enumerated_Domain_Value_Definition: Ja - Marine arkosic sandstone and argillite (Jurassic)

Enumerated_Domain:

Enumerated_Domain_Value: 3150

Enumerated_Domain_Value_Definition:

Jkw - Graywacke of Kulukak Bay (lower Upper to Middle Jurassic)

Enumerated_Domain:

Enumerated_Domain_Value: 3151

Enumerated_Domain_Value_Definition:

Jmm - Turbidites of Metervik Bay of Box (1985a) (Upper and Middle Jurassic)

Enumerated_Domain:

Enumerated_Domain_Value: 3152

Enumerated_Domain_Value_Definition:

Jvt - Volcaniclastic turbidites of Togiak Bay of Box (1985a) (Middle Jurassic)

Enumerated_Domain:

Enumerated_Domain_Value: 3230

Enumerated_Domain_Value_Definition: Jln - Dismembered volcaniclastic turbidites (Lower Jurassic?)

Enumerated_Domain:

Enumerated_Domain_Value: 3254

Enumerated_Domain_Value_Definition: Jlvs - Volcanic and sedimentary rocks (Lower Jurassic)

Enumerated_Domain:

Enumerated_Domain_Value: 3255

Enumerated_Domain_Value_Definition:

JTrcv - Coarse volcaniclastic rocks (Lower Jurassic to Upper Triassic)

Enumerated_Domain:

Enumerated_Domain_Value: 3260

Enumerated_Domain_Value_Definition: JTrp - Phyllite and chert (Lower Jurassic and Upper Triassic?)

Enumerated_Domain:

Enumerated_Domain_Value: 3310

Enumerated_Domain_Value_Definition:

Jlt - Laminated tuff and associated rocks of Box (1985a) (Jurassic)

Enumerated_Domain:

Enumerated_Domain_Value: 3380

Enumerated_Domain_Value_Definition: JTrot - Trondhjemite (Lower Jurassic to Middle Triassic)

Enumerated_Domain:

Enumerated_Domain_Value: 3406

Enumerated_Domain_Value_Definition: Jgb - Gabbroic rocks (Middle and Early Jurassic)

Enumerated_Domain:

Enumerated_Domain_Value: 3450

Enumerated_Domain_Value_Definition: Jab - Andesite and basalt (Middle Jurassic)

Enumerated_Domain:

Enumerated_Domain_Value: 3451

Enumerated_Domain_Value_Definition:

Jmv - Interbedded volcanic and sedimentary rocks (Middle Jurassic)

Enumerated_Domain:

Enumerated_Domain_Value: 3495

Enumerated_Domain_Value_Definition: Jum - Ultramafic rocks (Jurassic?)

Enumerated_Domain:

Enumerated_Domain_Value: 3510

Enumerated_Domain_Value_Definition: Jlgd - Hagemeister pluton of Box (1985a) (Early Jurassic?)

Enumerated_Domain:

Enumerated_Domain_Value: 3891

Enumerated_Domain_Value_Definition: Trob - Pillow basalt (Triassic)

Enumerated_Domain:

Enumerated_Domain_Value: 3892

Enumerated_Domain_Value_Definition: JTrot - Trondhjemite (Lower Jurassic to Middle Triassic)

Enumerated_Domain:

Enumerated_Domain_Value: 3893

Enumerated_Domain_Value_Definition: Trod - Diabasic intrusive rocks (Triassic)

Enumerated_Domain:

Enumerated_Domain_Value: 3894

Enumerated_Domain_Value_Definition: Trog - Pyroxene gabbro (Triassic)

Enumerated_Domain:

Enumerated_Domain_Value: 3895

Enumerated_Domain_Value_Definition: Jum - Ultramafic rocks (Jurassic?)

Enumerated_Domain:

Enumerated_Domain_Value: 3950

Enumerated_Domain_Value_Definition: TrPcs - Calcareous schist (Triassic? to Permian?)

Enumerated_Domain:

Enumerated_Domain_Value: 3990

Enumerated_Domain_Value_Definition: TrPmb - Metabasaltic schist (Triassic? to Permian?)

Enumerated_Domain:

Enumerated_Domain_Value: 3991

Enumerated_Domain_Value_Definition:

TrPvs - Volcaniclastic glaucophane-hornblende-epidote schist (Triassic? to Permian?)

Enumerated_Domain:

Enumerated_Domain_Value: 4035

Enumerated_Domain_Value_Definition: Trvs - Volcanic and sedimentary rocks (Upper Triassic)

Enumerated_Domain:

Enumerated_Domain_Value: 4215

Enumerated_Domain_Value_Definition: Trv - Basalt and chert (Upper Triassic)

Enumerated_Domain:

Enumerated_Domain_Value: 4710

Enumerated_Domain_Value_Definition:

MzPzt - Togiak-Tikchik Complex, undivided (Lower Cretaceous to Lower Paleozoic)

Enumerated_Domain:

Enumerated_Domain_Value: 4880

Enumerated_Domain_Value_Definition:

TJik - Little Kasigluk River pluton of Box and others (1993) (earliest Tertiary? to late Jurassic?)

Enumerated_Domain:

Enumerated_Domain_Value: 4950

Enumerated_Domain_Value_Definition: Mzm - Melange (Mesozoic)

Enumerated_Domain:

Enumerated_Domain_Value: 5026

Enumerated_Domain_Value_Definition: MzPzc - Chert and argillite (Mesozoic and (or) Paleozoic)

Enumerated_Domain:

Enumerated_Domain_Value: 5045

Enumerated_Domain_Value_Definition:

MzPzv - Volcaniclastic sandstone and argillite (Mesozoic and (or) Paleozoic)

Enumerated_Domain:

Enumerated_Domain_Value: 5050

Enumerated_Domain_Value_Definition:

MzPzs - Arkosic sandstone and slate (Mesozoic and (or) Paleozoic)

Enumerated_Domain:

Enumerated_Domain_Value: 5060

Enumerated_Domain_Value_Definition: Pcs - Clastic rocks (Permian?)

Enumerated_Domain:

Enumerated_Domain_Value: 5090

Enumerated_Domain_Value_Definition: MzPza - Argillaceous melange (Mesozoic to Paleozoic)

Enumerated_Domain:

Enumerated_Domain_Value: 5217

Enumerated_Domain_Value_Definition: MzPzp - Chloritic phyllite (Mesozoic and (or) Paleozoic)

Enumerated_Domain:

Enumerated_Domain_Value: 5225

Enumerated_Domain_Value_Definition:

MzPzm - Metachert and phyllitic metachert (Mesozoic and (or) Paleozoic)

Enumerated_Domain:

Enumerated_Domain_Value: 5239

Enumerated_Domain_Value_Definition: Jgs - Green amphibole-bearing schist (Late Jurassic)

Enumerated_Domain:

Enumerated_Domain_Value: 5730

Enumerated_Domain_Value_Definition: Pls - Limestone (Permian)

Enumerated_Domain:

Enumerated_Domain_Value: 5746

Enumerated_Domain_Value_Definition: Pvs - Volcaniclastic sedimentary rocks (Permian)

Enumerated_Domain:

Enumerated_Domain_Value: 5810

Enumerated_Domain_Value_Definition: Pv - Volcanic rocks (Permian)

Enumerated_Domain:

Enumerated_Domain_Value: 6412

Enumerated_Domain_Value_Definition:

MDv - Greenstone and schist (Lower Mississippian or Upper Devonian)

Enumerated_Domain:

Enumerated_Domain_Value: 6580

Enumerated_Domain_Value_Definition:

MDm - Marble and metabasaltic dikes (Lower Mississippian and (or) Upper Devonian)

Enumerated_Domain:

Enumerated_Domain_Value: 6995

Enumerated_Domain_Value_Definition: DOl - Thin-bedded limestone (Devonian to Ordovician)

Enumerated_Domain:

Enumerated_Domain_Value: 8610

Enumerated_Domain_Value_Definition: Zkm - Marble (Paleoproterozoic)

Enumerated_Domain:

Enumerated_Domain_Value: 9420

Enumerated_Domain_Value_Definition: Zk - Kanektok metamorphic complex, undivided (Paleoproterozoic)

Attribute:

Attribute_Label: NSAMOD

Attribute_Definition:

NSAMOD is a character (8 10 C) item in the polygon attribute table. It contains modifiers of the geologic unit.

Attribute_Definition_Source: this data set

Attribute_Domain_Values:

Unrepresentable_Domain:

ALT - hydrothermal alteration

HFS - contact metamorphism, hornfels

Q - queried unit

Attribute:

Attribute_Label: SOURCE

Attribute_Definition:

SOURCE is a character (6 8 C) item found in both the polygon and arc attribute tables. The values are abbreviated codes representing the original source reference for the polygon or arc feature. The format for SOURCE is XX###, where XX is a two letter code for the 1:250,000 scale quadrangle and ### is a three digit number (with leading zeros). All source codes with '001' are unspecified sources for water and ice features, often paper topographic maps, and DRG or DLG files.

Attribute_Definition_Source: this data set

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: BH002

Enumerated_Domain_Value_Definition:

Box, S.E., Moll-Stalcup, E.J., Frost, T.P., and Murphy, J.M., 1993, Preliminary geologic map of the Bethel and southern Russian Mission quadrangles, southwestern Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-2226-A, scale 1:250,000.

Enumerated_Domain:

Enumerated_Domain_Value: BH003

Enumerated_Domain_Value_Definition:

Hoare, J.M., and Coonrad, W.L., 1978, Geologic map of the Goodnews and Hagemeister Island quadrangles region, southwestern Alaska: U.S. Geological Survey Open-File Report 78-9-B, scale 1:250,000, 2 sheets.

Enumerated_Domain:

Enumerated_Domain_Value: BH004

Enumerated_Domain_Value_Definition:

Hoare, J.M., and Coonrad, W.L., 1959, Geology of the Bethel quadrangle, Alaska: U.S. Geological Survey Miscellaneous Geologic Investigations Map I-285, scale 1:250,000.

Enumerated_Domain:

Enumerated_Domain_Value: BH007

Enumerated_Domain_Value_Definition:

Wilson, F.H., and Hults, Chad, 2006, Edits to match Box and others (1993) Bethel map and Hoare and Coonrad (1978) Goodnews Bay map.

Enumerated_Domain:

Enumerated_Domain_Value: BI002

Enumerated_Domain_Value_Definition:

Coonrad, W.L., 1957, Geologic reconnaissance in the Yukon-Kuskokwim Delta region, Alaska: U.S. Geological Survey Miscellaneous Geologic Investigations Series Map I-233, scale 1:500,000.

Enumerated_Domain:

Enumerated_Domain_Value: BI003

Enumerated_Domain_Value_Definition:

Wilson, F.H., 2007, Reconnaissance mapping of surficial geology, Baird Inlet quadrangle.

Enumerated_Domain:

Enumerated_Domain_Value: CM003

Enumerated_Domain_Value_Definition:

Hoare, J.M., Condon, W.H., Cox, Allan, and Dalrymple, G.B., 1968, Geology, paleomagnetism, and potassium-argon ages of basalts from Nunivak Island, Alaska in Coats, R.R., Hay, R.L., and Anderson, C.A., eds., Studies in Volcanology-- A memoir in honor of Howell Williams: Geological Society of America Memoir 116, p. 377-413, 1 plate, scale 1:250,000.

Enumerated_Domain:

Enumerated_Domain_Value: GO002

Enumerated_Domain_Value_Definition:

Hoare, J.M., and Coonrad, W.L., 1978, Geologic map of the Goodnews and Hagemeister Island quadrangles region, southwestern Alaska: U.S. Geological Survey Open-File Report 78-9-B, scale 1:250,000, 2 sheets.

Enumerated_Domain:

Enumerated_Domain_Value: GO005

Enumerated_Domain_Value_Definition:

Box, S.E., 1985, Mesozoic tectonic evolution of the northern Bristol Bay region, southwestern Alaska: Santa Cruz, University of California, Ph.D. dissertation, 163p., 7 tables, 21 figures, 2 plates.

Enumerated_Domain:

Enumerated_Domain_Value: GO006

Enumerated_Domain_Value_Definition: Wilson, F.H., and Hults, Chad, 2006, Edits to integrate maps.

Enumerated_Domain:

Enumerated_Domain_Value: GO007

Enumerated_Domain_Value_Definition: Hoare and Coonrad field maps, circa 1975.

Enumerated_Domain:

Enumerated_Domain_Value: GO008

Enumerated_Domain_Value_Definition:

Hoare, J.M., and Coonrad, W.L., 1961, Geologic map of the Goodnews quadrangle, Alaska: U.S. Geological Survey Miscellaneous Investigations Series Map I-339, scale 1:250,000.

Enumerated_Domain:

Enumerated_Domain_Value: HG002

Enumerated_Domain_Value_Definition:

Hoare, J.M., and Coonrad, W.L., 1978, Geologic map of the Goodnews and Hagemeister Island quadrangles region, southwestern Alaska: U.S. Geological Survey Open-File Report 78-9-B, scale 1:250,000, 2 sheets.

Enumerated_Domain:

Enumerated_Domain_Value: HG003

Enumerated_Domain_Value_Definition:

Box, S.E., 1985, Mesozoic tectonic evolution of the northern Bristol Bay region, southwestern Alaska: Santa Cruz, University of California, Ph.D. dissertation, 163 p., 7 tables, 21 figures, 2 plates.

Enumerated_Domain:

Enumerated_Domain_Value: HG005

Enumerated_Domain_Value_Definition:

Hoare, J.M., and Coonrad, W.L., 1961, Geologic map of the Hagemeister Island quadrangle, Alaska: U.S. Geological Survey Miscellaneous Investigations Series Map I-321, scale 1:250,000.

Enumerated_Domain:

Enumerated_Domain_Value: KB002

Enumerated_Domain_Value_Definition:

Coonrad, W.L., 1957, Geologic reconnaissance in the Yukon-Kuskokwim Delta region, Alaska: U.S. Geological Survey Miscellaneous Geologic Investigations Series Map I-223, scale 1:500,000.

Enumerated_Domain:

Enumerated_Domain_Value: KB003

Enumerated_Domain_Value_Definition:

Wilson, F.H., 2007, Reconnaissance mapping of surficial geology, Kuskokwim Bay quadrangle.

Enumerated_Domain:

Enumerated_Domain_Value: NG002

Enumerated_Domain_Value_Definition:

Hoare, J.M., and Coonrad, W.L., 1978, Geologic map of the Goodnews and Hagemeister Island quadrangles region, southwestern Alaska: U.S. Geological Survey Open-File Report 78-9-B, scale 1:250,000, 2 sheets. (northwestern part of quadrangle only)

Enumerated_Domain:

Enumerated_Domain_Value: NG006

Enumerated_Domain_Value_Definition:

Box, S.E., 1985, Mesozoic tectonic evolution of the northern Bristol Bay region, southwestern Alaska: Santa Cruz, University of California, Ph.D. dissertation, 163 p., 7 tables, 21 figures, 2 plates.

Enumerated_Domain:

Enumerated_Domain_Value: NG007

Enumerated_Domain_Value_Definition:

Wilson, F.H., Hults, Chad, and Coonrad, W.L., 2006, Edits and field compilation sheets.

Enumerated_Domain:

Enumerated_Domain_Value: NI002

Enumerated_Domain_Value_Definition:

Coonrad, W.L., 1957, Geologic reconnaissance in the Yukon-Kuskokwim Delta region, Alaska: U.S. Geological Survey Miscellaneous Geologic Investigations Series Map I-223, scale 1:500,000.

Enumerated_Domain:

Enumerated_Domain_Value: NI003

Enumerated_Domain_Value_Definition:

Hoare, J.M., Condon, W.H., Cox, Allan, and Dalrymple, G.B., 1968, Geology, paleomagnetism, and potassium-argon ages of basalts from Nunivak Island, Alaska, in Coats, R.R., Hay, R.L., and Anderson, C.A., eds., Studies in Volcanology-- A memoir in honor of Howel Williams: Geological Society of America Memoir 116, p. 377-413, 1 plate, scale 1:250,000.

Enumerated_Domain:

Enumerated_Domain_Value: NI004

Enumerated_Domain_Value_Definition:

Wilson, F.H., 2007, Reconnaissance mapping of surficial geology, Nunivak Island quadrangle.

Enumerated_Domain:

Enumerated_Domain_Value: PI002

Enumerated_Domain_Value_Definition:

Barth, T.F.W., 1956, Geology and petrology of the Pribilof Islands, Alaska: U.S. Geological Survey Bulletin 1028-F, 160 p., scale 1:63,360.

Enumerated_Domain:

Enumerated_Domain_Value: ST002

Enumerated_Domain_Value_Definition:

Patton, W.W., Jr., Miller, T.P., Berg, H.C., Gryc, George, Hoare, J.M., and Ovenshine, A.T., 1975, Reconnaissance geologic map of St. Matthew Island, Bering Sea, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-642, scale 1:125,000.

Detailed_Description:

Entity_Type:

Entity_Type_Label: arcs

Entity_Type_Definition:

Characteristics of the arc features in the geology coverages are coded in the arc attribute table. Table <cov>.aat includes the following items: ARC-CODE, ARC-PARA1, and SOURCE. For explanation of SOURCE, see attribute definitions for polygons.

Entity_Type_Definition_Source: this data set

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 discontinuously from 0 to 99. Values match one-for-one with geologic features (such as stratigraphic boundary, fault, etc.). Some ARC-CODE values have additional modifiers in item ARC-PARA1.

Attribute_Definition_Source: this data set

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 1

Enumerated_Domain_Value_Definition: Stratigraphic or intrusive contact, location certain

Enumerated_Domain:

Enumerated_Domain_Value: 2

Enumerated_Domain_Value_Definition: Stratigraphic or intrusive contact, location approximate

Enumerated_Domain:

Enumerated_Domain_Value: 3

Enumerated_Domain_Value_Definition:

Stratigraphic or intrusive contact, location inferred, queried

Enumerated_Domain:

Enumerated_Domain_Value: 4

Enumerated_Domain_Value_Definition:

Normal fault, location certain; if ARC-PARA1 = 1, then upthrown side is on right from origin

Enumerated_Domain:

Enumerated_Domain_Value: 5

Enumerated_Domain_Value_Definition:

Normal fault, location approximate; if ARC-PARA1 = 1, then upthrown side is on right from origin

Enumerated_Domain:

Enumerated_Domain_Value: 6

Enumerated_Domain_Value_Definition:

Normal fault, location inferred or queried; if ARC-PARA1 = 1, then upthrown side is on right from origin

Enumerated_Domain:

Enumerated_Domain_Value: 7

Enumerated_Domain_Value_Definition: Shoreline or riverbank

Enumerated_Domain:

Enumerated_Domain_Value: 8

Enumerated_Domain_Value_Definition: Internal contact or phase change; no symbol drawn

Enumerated_Domain:

Enumerated_Domain_Value: 9

Enumerated_Domain_Value_Definition: Boundary of altered zone or hornfels; no symbol drawn

Enumerated_Domain:

Enumerated_Domain_Value: 10

Enumerated_Domain_Value_Definition: Thrust fault, location certain, teeth on right from origin

Enumerated_Domain:

Enumerated_Domain_Value: 11

Enumerated_Domain_Value_Definition:

Thrust fault, location approximate; teeth on right from origin

Enumerated_Domain:

Enumerated_Domain_Value: 14

Enumerated_Domain_Value_Definition: Caldera or crater rim

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: 30

Enumerated_Domain_Value_Definition: Fault, sense of displacement uncertain, location certain

Enumerated_Domain:

Enumerated_Domain_Value: 31

Enumerated_Domain_Value_Definition: Fault, sense of displacement uncertain, location approximate

Enumerated_Domain:

Enumerated_Domain_Value: 51

Enumerated_Domain_Value_Definition: Concealed contact

Enumerated_Domain:

Enumerated_Domain_Value: 52

Enumerated_Domain_Value_Definition: Concealed normal fault

Enumerated_Domain:

Enumerated_Domain_Value: 53

Enumerated_Domain_Value_Definition: Concealed thrust fault

Enumerated_Domain:

Enumerated_Domain_Value: 60

Enumerated_Domain_Value_Definition: Concealed fault, displacement uncertain

Enumerated_Domain:

Enumerated_Domain_Value: 90

Enumerated_Domain_Value_Definition: Left lateral fault, location certain

Enumerated_Domain:

Enumerated_Domain_Value: 91

Enumerated_Domain_Value_Definition: Left lateral fault, location approximate

Enumerated_Domain:

Enumerated_Domain_Value: 93

Enumerated_Domain_Value_Definition: Lineament

Enumerated_Domain:

Enumerated_Domain_Value: 99

Enumerated_Domain_Value_Definition: Bounding line of coverage

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey

Contact_Address:

Address_Type: mailing address

Address: MS 902 Box 25286 Denver Federal Center

City: Lakewood

State_or_Province: CO

Postal_Code: 80225

Country: U.S.A.

Contact_Voice_Telephone: 1-888-ASK-USGS

Resource_Description: Open-File Report 2008-1001

Distribution_Liability:

This world-wide web publication was prepared by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, expressed or implied, or assumes any legal liability or responsibility for the accuracy, product, or process disclosed in this report, or represents that its use would not infringe privately owned rights. Reference therein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government of any agency thereof.

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Format_Name: ARCE

File_Decompression_Technique: zip files

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name: <https://pubs.usgs.gov/of/2008/1001>

Fees: There is no cost for the download of these digital files

Metadata_Reference_Information:

Metadata_Date: 20070911

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: Alaska

Postal_Code: 99508

Country: U.S.A.

Contact_Voice_Telephone: 907-786-7445

Contact_Electronic_Mail_Address: nshew@usgs.gov

Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata

Metadata_Standard_Version: FGDC-STD-001-1998