Surficial-geologic map of parts of the Sagavanirktok and Toolik river drainages, northern Brooks Range foothills, Alaska

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Frequently anticipated questions:

What does this data set describe?

Title:
Surficial-geologic map of parts of the Sagavanirktok and Toolik river drainages, northern Brooks Range foothills, Alaska
Abstract:
This map shows the distribution of unconsolidated deposits and undifferentiated bedrock exposed at the surface in the Sagavanirktok A-3, A-4, B-3, B-4, and portions of the Sagavanirktok A-5 and B-5 quadrangles. Units were mapped by interpretation of stereo pairs of approximately 1:65,000-scale false-color infrared aerial photographs taken in June and August 1978, as well as 2.5 m and 10 m resolution SPOT imagery collected in 2009 and 2010. Fieldwork was completed in 2008.
Supplemental_Information:
This digital data distribution package provides ESRI ArcGIS .mxd file, geodatabase, and shapefiles that portray features presented in RI 2016-6. Field names and values are organized according to the NCGMP09 - Draft Standard Format for Digital Publication of Geologic Maps, Version 1.1 by the USGS National Cooperative Geologic Mapping Program (NCGMP). This metadata file lists the table names and field names used in the geodatabase. Table and field names in the shapefiles are truncated at 10 characters. The geodatabase and selected shapefiles provide the following features: 
border:    A polygon that encompasses the maximum geographic extent of the data observations.
CorrelationOfMapUnits:    Geodatabase feature dataset that depicts the map unit correlation chart.
ContactsAndFaults:    Line features depicting faults and geologic contacts.
GenericPoints:    A point file that provides locations, symbology, and labels for point features other than geochronology, stations, or orientation points.
GeologicLines:    Dikes, coal seams, ash beds, glacial features, anticline and syncline hinge-surface traces, and other kinds of key beds that do not participate in map-unit topology.
MapUnitPolys:    Polygons that record the distribution of mapped or interpreted geologic units.
MapUnitPolysAnno:    Geodatabase annotation feature class that provides placement and symbology for map unit labels.
OtherPolys:    Polygons that record the location and extent of geologic or geographic features other than the geologic units.
Stations:    A point file that provides location information, observations, and other data specific to each field observation station.
  1. How should this data set be cited?

    Hubbard, T.D., 2016, Surficial-geologic map of parts of the Sagavanirktok and Toolik river drainages, northern Brooks Range foothills, Alaska: Report of Investigation RI 2016-6, Alaska Division of Geological & Geophysical Surveys, Fairbanks, Alaska, United States.

    Online Links:

    Other_Citation_Details: 1 sheet, scale 1:63,360.

  2. What geographic area does the data set cover?

    West_Bounding_Coordinate: -149.681401
    East_Bounding_Coordinate: -148.172704
    North_Bounding_Coordinate: 69.515648
    South_Bounding_Coordinate: 68.984159

  3. What does it look like?

  4. Does the data set describe conditions during a particular time period?

    Beginning_Date: 2008
    Ending_Date: 2016
    Currentness_Reference: ground condition

  5. What is the general form of this data set?

    Geospatial_Data_Presentation_Form: report and digital data

  6. How does the data set represent geographic features?

    1. How are geographic features stored in the data set?

      This is a vector data set.

    2. What coordinate system is used to represent geographic features?

      Grid_Coordinate_System_Name: Universal Transverse Mercator
      Universal_Transverse_Mercator:
      UTM_Zone_Number: 6
      Transverse_Mercator:
      Scale_Factor_at_Central_Meridian: 0.999600
      Longitude_of_Central_Meridian: -147
      Latitude_of_Projection_Origin: 0
      False_Easting: 500000.000000
      False_Northing: 0

      Planar coordinates are encoded using coordinate pair
      Abscissae (x-coordinates) are specified to the nearest .00000001
      Ordinates (y-coordinates) are specified to the nearest .00000001
      Planar coordinates are specified in Meters

      The horizontal datum used is North American Datum of 1927.
      The ellipsoid used is Clarke 1866.
      The semi-major axis of the ellipsoid used is 6378206.4.
      The flattening of the ellipsoid used is 1/294.9786982.

  7. How does the data set describe geographic features?

    ri2016-6-border.shp
    A polygon that encompasses the maximum geographic extent of the data observations. (Source: Alaska Division of Geological & Geophysical Surveys)

    CorrelationOfMapUnits
    Geodatabase feature dataset that depicts the map unit correlation chart. (Source: Alaska Division of Geological & Geophysical Surveys (DGGS).)

    CMULines
    Line feature class that generates linework and symbology for the map unit correlation chart. (Source: Alaska Division of Geological & Geophysical Surveys)

    Field names and values are organized according to the NCGMP09 - Draft Standard Format for Digital Publication of Geologic Maps, Version 1.1 by the USGS National Cooperative Geologic Mapping Program (NCGMP). We supplement the NCGMP09 standard fields with an additional field titled "Label" that provides labels for brackets.

    CMUMapUnitPolys
    Polygon feature class that generates symbology for the map unit correlation chart. (Source: Alaska Division of Geological & Geophysical Surveys)

    Field names and values are organized according to the NCGMP09 - Draft Standard Format for Digital Publication of Geologic Maps, Version 1.1 by the USGS National Cooperative Geologic Mapping Program (NCGMP)

    MapUnitPolysAnno
    Geodatabase annotation feature class that provides placement and symbology for map unit labels. (Source: Alaska Division of Geological & Geophysical Surveys (DGGS))

    ContactsAndFaults
    Line features depicting faults and geologic contacts. (Source: Alaska Division of Geological & Geophysical Surveys (DGGS).This table is organized according to the NCGMP09 - Draft Standard Format for Digital Publication of Geologic Maps, Version 1.1 by the USGS National Cooperative Geologic Mapping Program (NCGMP).)

    Type
    Type values specify the kind of features represented by a line, point, or polygon (Source: Alaska Division of Geological & Geophysical Surveys)

    Feature type(s): water outline and contact

    IsConcealed
    This is a flag to identify contacts and faults covered by overlying map units. (Source: Alaska Division of Geological & Geophysical Surveys)

    ValueDefinition
    NThe feature IS NOT covered by an overlying map unit.

    ExistenceConfidence
    Indicates the degree of confidence and/or certainty in the interpretation of a feature's existence. (Source: Alaska Division of Geological & Geophysical Surveys)

    ValueDefinition
    certainIndicates that the author has sufficient observational and/or other supporting data to be reasonably confident in the scientific credibility of the interpretation of the feature. The level of certainty is specific to the map scale.

    IdentityConfidence
    Indicates degree of confidence in the identification and classification of the feature. (Source: Alaska Division of Geological & Geophysical Surveys)

    ValueDefinition
    certainIndicates that the author has sufficient observational and/or other supporting data to be reasonably confident in the scientific credibility of the interpretation of the feature. The level of certainty is specific to the map scale.

    LocationConfidenceMeters
    Half-width in meters of positional uncertainty envelope; position is relative to other features in the data. A value of -9 indicates that this measure is not available (Source: Alaska Division of Geological & Geophysical Surveys)

    Range of values
    Minimum:10
    Maximum:15
    Units:meters

    Symbol
    References the symbol value that was assigned to the point. (Source: Alaska Division of Geological & Geophysical Surveys)

    Formal codeset
    Codeset Name:FGDC Digital Cartographic Standard for Geologic Map Symbolization; Appendix A. Geologic map symbols, colors, and patterns, "REF NO" field
    Codeset Source:Federal Geographic Data Committee [prepared for the Federal Geographic Data Committee by the U.S. Geological Survey], 2006, FGDC Digital Cartographic Standard for Geologic Map Symbolization: Reston, Va., Federal Geographic Data Committee Document Number FGDC-STD-013-2006, 290 p., 2 plates.

    RuleID
    References the applicable ESRI cartographic representation rule. (Source: Alaska Division of Geological & Geophysical Surveys)

    Data type = integer

    GenericPoints
    A point file that provides locations, symbology, and labels for point features other than geochronology, stations, or orientation points. (Source: Alaska Division of Geological & Geophysical Surveys (DGGS).This table is organized according to the NCGMP09 - Draft Standard Format for Digital Publication of Geologic Maps, Version 1.1 by the USGS National Cooperative Geologic Mapping Program (NCGMP).)

    Type
    Type values specify the kind of features represented by a line, point, or polygon (Source: Alaska Division of Geological & Geophysical Surveys)

    Feature type(s): closed system pingo and boulder protrusion

    MapUnit
    Short ASCII string that indicates the map unit. Note: map units in parentheses, such as (Qcf), indicate combined map units consisting of bedrock overlain by thin or discontinuous deposits of the map unit. Map units with a question mark, such as (Qus?), indicate an uncertain identification. (Source: Alaska Division of Geological & Geophysical Surveys)

    ValueDefinition
    QTcUndifferentiated Colluvium
    QTcsGelifluction Deposits
    QgdaDrift of Anaktuvuk River Glaciation
    Qgds1Drift of Sagavanirktok River Glaciation, Early Advance
    QTcfMixed Colluvium and Alluvium
    QTgfoFrozen Silt and Anaktuvuk River Drift
    QaaActive-Floodplain Alluvium
    QaiInactive-Floodplain Alluvium
    QatStream-Terrace Alluvium
    QcdDebris-Flow Deposits
    Qgds2Drift of Sagavanirktok River Glaciation, Late Advance
    QgfaFrozen Silt and Anaktuvuk River Drift
    QgfiUndifferentiated Outwash of Itkillik Glaciation
    Qgfi2Outwash of Itkillik Phase II Glaciation
    QgfsOutwash of Sagavanirktok Glaciation
    QtThermokarst Lake and Basin Deposits
    bUndifferentiated Bedrock
    b'Thinly-Covered Bedrock

    Symbol
    References the symbol value that was assigned to the point. (Source: Alaska Division of Geological & Geophysical Surveys)

    Formal codeset
    Codeset Name:FGDC Digital Cartographic Standard for Geologic Map Symbolization; Appendix A. Geologic map symbols, colors, and patterns, "REF NO" field
    Codeset Source:Federal Geographic Data Committee [prepared for the Federal Geographic Data Committee by the U.S. Geological Survey], 2006, FGDC Digital Cartographic Standard for Geologic Map Symbolization: Reston, Va., Federal Geographic Data Committee Document Number FGDC-STD-013-2006, 290 p., 2 plates.

    Label
    The label values provide text strings to display along with their associated feature. Depending on the context of the feature class, label values will contain applicable FGDCGeoAge font characters, feature labels, dip and plunge values for measured orientations, or other special characters. (Source: Alaska Division of Geological & Geophysical Surveys)

    Formal codeset
    Codeset Name:FGDCGeoAge font
    Codeset Source:Federal Geographic Data Committee [prepared for the Federal Geographic Data Committee by the U.S. Geological Survey], 2006, FGDC Digital Cartographic Standard for Geologic Map Symbolization: Reston, Va., Federal Geographic Data Committee Document Number FGDC-STD-013-2006, 290 p., 2 plates.

    PlotAtScale
    The scale at which the observation should be plotted. (Source: Alaska Division of Geological & Geophysical Surveys)

    Range of values
    Minimum:1
    Maximum:63360

    LocationConfidenceMeters
    Half-width in meters of positional uncertainty envelope; position is relative to other features in the data. A value of -9 indicates that this measure is not available (Source: Alaska Division of Geological & Geophysical Surveys)

    Range of values
    Minimum:5
    Maximum:10
    Units:meters

    Notes
    Free text for additional information about the polygon. (Source: Alaska Division of Geological & Geophysical Surveys)

    The notes indicate the source of the feature interpretation or provide more information about the feature.

    RuleID
    References the applicable ESRI cartographic representation rule. (Source: Alaska Division of Geological & Geophysical Surveys)

    Data type = integer

    GeologicLines
    Dikes, coal seams, ash beds, glacial features, anticline and syncline hinge-surface traces, and other kinds of key beds that do not participate in map-unit topology. (Source: Alaska Division of Geological & Geophysical Surveys (DGGS).This table is organized according to the NCGMP09 - Draft Standard Format for Digital Publication of Geologic Maps, Version 1.1 by the USGS National Cooperative Geologic Mapping Program (NCGMP).)

    Type
    Type values specify the kind of features represented by a line, point, or polygon (Source: Alaska Division of Geological & Geophysical Surveys)

    Feature type(s): moraine crest

    IsConcealed
    This is a flag to identify contacts and faults covered by overlying map units. (Source: Alaska Division of Geological & Geophysical Surveys)

    ValueDefinition
    NThe feature IS NOT covered by an overlying map unit.

    ExistenceConfidence
    Indicates the degree of confidence and/or certainty in the interpretation of a feature's existence. (Source: Alaska Division of Geological & Geophysical Surveys)

    ValueDefinition
    certainIndicates that the author has sufficient observational and/or other supporting data to be reasonably confident in the scientific credibility of the interpretation of the feature. The level of certainty is specific to the map scale.

    IdentityConfidence
    Indicates degree of confidence in the identification and classification of the feature. (Source: Alaska Division of Geological & Geophysical Surveys)

    ValueDefinition
    certainIndicates that the author has sufficient observational and/or other supporting data to be reasonably confident in the scientific credibility of the interpretation of the feature. The level of certainty is specific to the map scale.

    LocationConfidenceMeters
    Half-width in meters of positional uncertainty envelope; position is relative to other features in the data. A value of -9 indicates that this measure is not available (Source: Alaska Division of Geological & Geophysical Surveys)

    Range of values
    Minimum:5
    Maximum:5
    Units:meters

    Symbol
    References the symbol value that was assigned to the point. (Source: Alaska Division of Geological & Geophysical Surveys)

    Formal codeset
    Codeset Name:FGDC Digital Cartographic Standard for Geologic Map Symbolization; Appendix A. Geologic map symbols, colors, and patterns, "REF NO" field
    Codeset Source:Federal Geographic Data Committee [prepared for the Federal Geographic Data Committee by the U.S. Geological Survey], 2006, FGDC Digital Cartographic Standard for Geologic Map Symbolization: Reston, Va., Federal Geographic Data Committee Document Number FGDC-STD-013-2006, 290 p., 2 plates.

    Notes
    Free text for additional information about the polygon. (Source: Alaska Division of Geological & Geophysical Surveys)

    The notes indicate the source of the feature interpretation or provide more information about the feature.

    RuleID
    References the applicable ESRI cartographic representation rule. (Source: Alaska Division of Geological & Geophysical Surveys)

    Data type = integer

    MapUnitPolys
    Polygons that record the distribution of mapped or interpreted geologic units. (Source: Alaska Division of Geological & Geophysical Surveys (DGGS)This table is organized according to the NCGMP09 - Draft Standard Format for Digital Publication of Geologic Maps, Version 1.1 by the USGS National Cooperative Geologic Mapping Program (NCGMP).)

    MapUnit
    Short ASCII string that indicates the map unit. Note: map units in parentheses, such as (Qcf), indicate combined map units consisting of bedrock overlain by thin or discontinuous deposits of the map unit. Map units with a question mark, such as (Qus?), indicate an uncertain identification. (Source: Alaska Division of Geological & Geophysical Surveys)

    ValueDefinition
    QTcUndifferentiated Colluvium
    QTcsGelifluction Deposits
    QgdaDrift of Anaktuvuk River Glaciation
    Qgdi1Drift of Itkillik Phase I Glaciation
    QgdsDrift of Sagavanirktok River Glaciation, Undifferentiated
    Qgds1Drift of Sagavanirktok River Glaciation, Early Advance
    Qgds2Drift of Sagavanirktok River Glaciation, Late Advance
    QTcfMixed Colluvium and Alluvium
    QTgfoFrozen Silt and Anaktuvuk River Drift
    QaUndifferentiated Alluvium
    QaaActive-Floodplain Alluvium
    QabAbandoned-Floodplain Alluvium
    QafAlluvial-Fan Deposits
    QaiInactive-Floodplain Alluvium
    QatStream-Terrace Alluvium
    QcdDebris-Flow Deposits
    Qgdi2Drift of Itkillik Phase II Glaciation
    QgfaFrozen Silt and Anaktuvuk River Drift
    QgfiUndifferentiated Outwash of Itkillik Glaciation
    Qgfi1Outwash of Itkillik Phase I Glaciation
    Qgfi2Outwash of Itkillik Phase II Glaciation
    QgfsOutwash of Sagavanirktok Glaciation
    QhfArtificial Fill
    QtThermokarst Lake and Basin Deposits
    WaterWater
    bUndifferentiated Bedrock
    b'Thinly-Covered Bedrock

    IdentityConfidence
    Indicates degree of confidence in the identification and classification of the feature. (Source: Alaska Division of Geological & Geophysical Surveys)

    ValueDefinition
    certainIndicates that the author has sufficient observational and/or other supporting data to be reasonably confident in the scientific credibility of the interpretation of the feature. The level of certainty is specific to the map scale.
    questionableThe interpretation of the feature at the mapped scale fits the overall proposed geologic model but the extent and/or classification is questionable or uncertain due to insufficient observations and/or supporting data.

    Label
    The label values provide text strings to display along with their associated feature. Depending on the context of the feature class, label values will contain applicable FGDCGeoAge font characters, feature labels, dip and plunge values for measured orientations, or other special characters. (Source: Alaska Division of Geological & Geophysical Surveys)

    Formal codeset
    Codeset Name:FGDCGeoAge font
    Codeset Source:Federal Geographic Data Committee [prepared for the Federal Geographic Data Committee by the U.S. Geological Survey], 2006, FGDC Digital Cartographic Standard for Geologic Map Symbolization: Reston, Va., Federal Geographic Data Committee Document Number FGDC-STD-013-2006, 290 p., 2 plates.

    Symbol
    References the CMYK color value that was assigned to the map unit. (Source: Alaska Division of Geological & Geophysical Surveys)

    ValueDefinition
    0330CMYK value - C:0%, M:30%, Y:30%, K:0%
    00X0CMYK value - C:0%, M:0%, Y:100%, K:0%
    0004CMYK value - C:0%, M:0%, Y:0%, K:40%
    0002CMYK value - C:0%, M:0%, Y:0%, K:20%
    5000CMYK value - C:50%, M:0%, Y:0%, K:0%
    0A20CMYK value - C:0%, M:8%, Y:20%, K:0%
    0060CMYK value - C:0%, M:0%, Y:60%, K:0%
    1100CMYK value - C:13%, M:13%, Y:0%, K:0%
    1000CMYK value - C:13%, M:0%, Y:0%, K:0%
    0040CMYK value - C:0%, M:0%, Y:40%, K:0%
    4070CMYK value - C:40%, M:0%, Y:70%, K:0%
    3000CMYK value - C:30%, M:0%, Y:0%, K:0%
    4460CMYK value - C:40%, M:40%, Y:60%, K:0%
    0020CMYK value - C:0%, M:0%, Y:20%, K:0%
    0A70CMYK value - C:0%, M:8%, Y:70%, K:0%
    3300CMYK value - C:30%, M:30%, Y:0%, K:0%
    6080CMYK value - C:60%, M:0%, Y:80%, K:0%
    02X0CMYK value - C:0%, M:20%, Y:100%, K:0%
    2060CMYK value - C:20%, M:0%, Y:60%, K:0%
    3070CMYK value - C:30%, M:0%, Y:70%, K:0%
    A040CMYK value - C:8%, M:0%, Y:40%, K:0%
    0140CMYK value - C:0%, M:13%, Y:40%, K:0%
    0260CMYK value - C:0%, M:20%, Y:60%, K:0%
    0450CMYK value - C:0%, M:40%, Y:50%, K:0%
    1070CMYK value - C:13%, M:0%, Y:70%, K:0%
    5500CMYK value - C:50%, M:50%, Y:0%, K:0%

    RuleID
    References the applicable ESRI cartographic representation rule. (Source: Alaska Division of Geological & Geophysical Surveys)

    Data type = integer

    OtherPolys
    Polygons that record the location and extent of geologic or geographic features other than the geologic units. (Source: Alaska Division of Geological & Geophysical Surveys (DGGS)This table is organized according to the NCGMP09 - Draft Standard Format for Digital Publication of Geologic Maps, Version 1.1 by the USGS National Cooperative Geologic Mapping Program (NCGMP).)

    Type
    Type values specify the kind of features represented by a line, point, or polygon (Source: Alaska Division of Geological & Geophysical Surveys)

    Feature type(s): geologic unit pattern and map area boundary

    IdentityConfidence
    Indicates degree of confidence in the identification and classification of the feature. (Source: Alaska Division of Geological & Geophysical Surveys)

    ValueDefinition
    certainIndicates that the author has sufficient observational and/or other supporting data to be reasonably confident in the scientific credibility of the interpretation of the feature. The level of certainty is specific to the map scale.
    questionableThe interpretation of the feature at the mapped scale fits the overall proposed geologic model but the extent and/or classification is questionable or uncertain due to insufficient observations and/or supporting data.

    Symbol
    References the symbol value that was assigned to the point. (Source: Alaska Division of Geological & Geophysical Surveys)

    Formal codeset
    Codeset Name:FGDC Digital Cartographic Standard for Geologic Map Symbolization; Appendix A. Geologic map symbols, colors, and patterns, "REF NO" field
    Codeset Source:Federal Geographic Data Committee [prepared for the Federal Geographic Data Committee by the U.S. Geological Survey], 2006, FGDC Digital Cartographic Standard for Geologic Map Symbolization: Reston, Va., Federal Geographic Data Committee Document Number FGDC-STD-013-2006, 290 p., 2 plates.

    Label
    The label values provide text strings to display along with their associated feature. Depending on the context of the feature class, label values will contain applicable FGDCGeoAge font characters, feature labels, dip and plunge values for measured orientations, or other special characters. (Source: Alaska Division of Geological & Geophysical Surveys)

    Formal codeset
    Codeset Name:FGDCGeoAge font
    Codeset Source:Federal Geographic Data Committee [prepared for the Federal Geographic Data Committee by the U.S. Geological Survey], 2006, FGDC Digital Cartographic Standard for Geologic Map Symbolization: Reston, Va., Federal Geographic Data Committee Document Number FGDC-STD-013-2006, 290 p., 2 plates.

    RuleID
    References the applicable ESRI cartographic representation rule. (Source: Alaska Division of Geological & Geophysical Surveys)

    Data type = integer

    Stations
    A point file that provides location information, observations, and other data specific to each field observation station. (Source: Alaska Division of Geological & Geophysical Surveys (DGGS).This table is organized according to the NCGMP09 - Draft Standard Format for Digital Publication of Geologic Maps, Version 1.1 by the USGS National Cooperative Geologic Mapping Program (NCGMP).)

    FieldID
    Identifier assigned by person who originally located station (Source: Alaska Division of Geological & Geophysical Surveys)

    Generic example of a sample identifier: YYYYAAA9999X; YY or YYYY= year, AAA=geologist's initials (one to three characters), 9999=unique station number, X= optional alpha character which indicates that multiple samples were collected at a given location or that multiple observations were recorded in the project database.

    MapUnit
    Short ASCII string that indicates the map unit. Note: map units in parentheses, such as (Qcf), indicate combined map units consisting of bedrock overlain by thin or discontinuous deposits of the map unit. Map units with a question mark, such as (Qus?), indicate an uncertain identification. (Source: Alaska Division of Geological & Geophysical Surveys)

    ValueDefinition
    QTcUndifferentiated Colluvium
    QTcsGelifluction Deposits
    QgdaDrift of Anaktuvuk River Glaciation
    Qgds1Drift of Sagavanirktok River Glaciation, Early Advance
    QTcfMixed Colluvium and Alluvium
    QaUndifferentiated Alluvium
    QaaActive-Floodplain Alluvium
    QabAbandoned-Floodplain Alluvium
    QafAlluvial-Fan Deposits
    QaiInactive-Floodplain Alluvium
    Qgdi1Drift of Itkillik Phase I Glaciation
    QgdsDrift of Sagavanirktok River Glaciation, Undifferentiated
    Qgds2Drift of Sagavanirktok River Glaciation, Late Advance
    QgfaFrozen Silt and Anaktuvuk River Drift
    QgfiUndifferentiated Outwash of Itkillik Glaciation
    Qgfi2Outwash of Itkillik Phase II Glaciation
    QgfsOutwash of Sagavanirktok Glaciation
    QtThermokarst Lake and Basin Deposits
    WaterWater
    bUndifferentiated Bedrock
    b'Thinly-Covered Bedrock

    Symbol
    References the symbol value that was assigned to the point. (Source: Alaska Division of Geological & Geophysical Surveys)

    Formal codeset
    Codeset Name:FGDC Digital Cartographic Standard for Geologic Map Symbolization; Appendix A. Geologic map symbols, colors, and patterns, "REF NO" field
    Codeset Source:Federal Geographic Data Committee [prepared for the Federal Geographic Data Committee by the U.S. Geological Survey], 2006, FGDC Digital Cartographic Standard for Geologic Map Symbolization: Reston, Va., Federal Geographic Data Committee Document Number FGDC-STD-013-2006, 290 p., 2 plates.

    PlotAtScale
    The scale at which the observation should be plotted. (Source: Alaska Division of Geological & Geophysical Surveys)

    Range of values
    Minimum:63360
    Maximum:63360

    LocationConfidenceMeters
    Half-width in meters of positional uncertainty envelope; position is relative to other features in the data. A value of -9 indicates that this measure is not available (Source: Alaska Division of Geological & Geophysical Surveys)

    Range of values
    Minimum:10
    Maximum:10
    Units:meters

    LocationMethod
    Term that categorizes technique used to determine station location (Source: Alaska Division of Geological & Geophysical Surveys)

    Location method(s): Recreational GPS

    Observer
    Name of the person who located station (Source: Alaska Division of Geological & Geophysical Surveys)

    Observer(s): Trent Hubbard

    GPSCoordinates
    UTM coordinates imported from the GPS (Source: Alaska Division of Geological & Geophysical Surveys)

    Easting, Northing

    MapCoordinates
    UTM coordinates of each station. Locations reflect any adjustments that were needed better align stations to basemap features. (Source: Alaska Division of Geological & Geophysical Surveys)

    Easting, Northing

    Notes
    Free text for additional information about the polygon. (Source: Alaska Division of Geological & Geophysical Surveys)

    The notes indicate the source of the feature interpretation or provide more information about the feature.

    RuleID
    References the applicable ESRI cartographic representation rule. (Source: Alaska Division of Geological & Geophysical Surveys)

    Data type = integer

Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)

  2. Who also contributed to the data set?

    The author gratefully acknowledges Bob Gillis, Marwan Wartes, and Dave LePain from the Alaska Division of Geological & Geophysical Surveys (DGGS) Energy Section, and Paul Decker from the Alaska Division of Oil and Gas, who provided field support and engaged in useful discussions about North Slope geology. Many thanks to De Anne Stevens and Tom Hamilton for their time in the field helping to educate me about Quaternary geology of the region; Andrea Loveland of the DGGS Energy Section, who provided digital data and answered GIS questions during map preparation; and Dick Reger and Chris Waythomas, who reviewed the map. Completion of the map was made possible by funding from a variety of sources, including operating and capital improvement project funds from the State of Alaska (Division of Geological & Geophysical Surveys and Division of Oil & Gas), and the National Cooperative Geologic Mapping Program's STATEMAP program, administered by the U.S. Geological Survey (award 08HQAG0051).

  3. To whom should users address questions about the data?

    Alaska Division of Geological & Geophysical Surveys
    GIS Manager
    3354 College Rd
    Fairbanks, AK 99709-3707
    USA

    907-451-5020 (voice)
    dggsgis@alaska.gov

    Hours_of_Service: 8 am to 4:30 pm, Monday through Friday, except State holidays

Why was the data set created?

This report provides basic surficial-geologic information useful for determining geologic hazards and locating aggregate material for engineering use.

How was the data set created?

  1. From what previous works were the data drawn?

    Hamilton, T.D., 1978 (source 1 of 3)
    Hamilton, T.D., 1978, Surficial geologic map of the Philip Smith Mountains Quadrangle, Alaska: Miscellaneous Field Studies Map MF 879-A, U.S. Geological Survey, United States.

    Online Links:

    Other_Citation_Details: 1 sheet, scale 1:250,000
    Type_of_Source_Media: paper
    Source_Scale_Denominator: 250000
    Source_Contribution: surficial geologic interpretation

    Pinney, D.S., 2000 (source 2 of 3)
    Pinney, D.S., 2000, Reconnaissance engineering-geologic map of the Sagavanirktok B-1 Quadrangle, eastern North Slope, Alaska: Report of Investigation RI 2000-1D, Alaska Division of Geological & Geophysical Surveys, Fairbanks, Alaska, United States.

    Online Links:

    Other_Citation_Details: 2 p., 1 sheet, scale 1:63,360
    Type_of_Source_Media: paper
    Source_Scale_Denominator: 63360
    Source_Contribution: surficial geologic interpretation

    Stevens, D.S.P. and others, 2003 (source 3 of 3)
    Stevens, D.S.P., Bowman, N.D., Reger, R.D., and Smith, R.L., 2003, Survey of geology, geologic materials, and geologic hazards in proposed access corridors in the Sagavanirktok Quadrangle, Alaska: Miscellaneous Publication MP 106, Alaska Division of Geological & Geophysical Surveys, Fairbanks, Alaska, United States.

    Online Links:

    Other_Citation_Details: 4 sheets, scale 1:250,000
    Type_of_Source_Media: paper
    Source_Scale_Denominator: 250000
    Source_Contribution: surficial geologic interpretation

  2. How were the data generated, processed, and modified?

    Date: 2010 (process 1 of 3)
    Surficial geologic unit interpretation - Surficial-geologic units were mapped by interpretation of stereo pairs of approximately 1:65,000 scale false-color infrared aerial photographs taken in June and August 1978, as well as 2.5 m and 10 m resolution SPOT imagery collected in 2009 and 2010. Fieldwork was completed in 2008.

    Date: 2013 (process 2 of 3)
    GIS analysis and digital cartography - The geologic and geographic features portrayed in this may were derived electronically from the interpreted surficial-geologic mapping using Geographic Information System (GIS) software. Surficial geologic units were grouped based on common properties that are typically significant for engineering applications. All geologic features were attributed according to the NCGMP09 geodatabase standard.

    Date: 2015 (process 3 of 3)
    Technical review - This DGGS Report of Investigations is a final report of scientific research. It has received technical review and editing by several scientists familiar with the subject matter. We incorporated the reviewers' suggestions into the final draft when deemed appropriate.

  3. What similar or related data should the user be aware of?

    Gillis, R.J., Decker, P.L., Wartes, M.A., Loveland, A.M., and Hubbard, T.D., 2014, Geologic map of the south-central Sagavanirktok Quadrangle, North Slope, Alaska: Report of Investigation RI 2014-4, Alaska Division of Geological & Geophysical Surveys, Fairbanks, Alaska, United States.

    Online Links:

    Other_Citation_Details: 24 p., 2 sheets, scale 1:63,360

How reliable are the data; what problems remain in the data set?

  1. How well have the observations been checked?

    Certainty in attribute interpenetration varies throughout the map. Data fields within each table record the author's degree of confidence in the existence or identity of applicable features. This publication is a final report of research and has received two technical reviews as well as technical editing.

  2. How accurate are the geographic locations?

    Certainty in feature boundaries or location varies throughout the map. Data fields within each table record the author's degree of confidence in the location of applicable features.

  3. How accurate are the heights or depths?

  4. Where are the gaps in the data? What is missing?

    This data release is complete.

  5. How consistent are the relationships among the observations, including topology?

    not applicable

How can someone get a copy of the data set?

Are there legal restrictions on access or use of the data?

Access_Constraints:
This report, map, and/or dataset is available directly from the State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys (see contact information below).
Use_Constraints:
Any hard copies or published datasets utilizing these datasets shall clearly indicate their source. If the user has modified the data in any way, the user is obligated to describe the types of modifications the user has made. The user specifically agrees not to misrepresent these datasets, nor to imply that changes made by the user were approved by the State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys. The State of Alaska makes no express or implied warranties (including warranties for merchantability and fitness) with respect to the character, functions, or capabilities of the electronic data or products or their appropriateness for any user's purposes. In no event will the State of Alaska be liable for any incidental, indirect, special, consequential, or other damages suffered by the user or any other person or entity whether from the use of the electronic services or products or any failure thereof or otherwise. In no event will the State of Alaska's liability to the Requestor or anyone else exceed the fee paid for the electronic service or product.

  1. Who distributes the data set? (Distributor 1 of 1)

    Alaska Division of Geological & Geophysical Surveys
    3354 College Road
    Fairbanks, AK 99709-3707
    USA

    (907)451-5020 (voice)
    (907)451-5050 (FAX)
    dggspubs@alaska.gov

    Hours_of_Service: 8 am to 4:30 pm, Monday through Friday, except State holidays
    Contact_Instructions:
    Please view our website (<http://www.dggs.alaska.gov>) for the latest information on available data. Please contact us using the e-mail address provided above when possible.
  2. What's the catalog number I need to order this data set?

    RI 2016-6

  3. What legal disclaimers am I supposed to read?

    The State of Alaska makes no expressed or implied warranties (including warranties for merchantability and fitness) with respect to the character, functions, or capabilities of the electronic data or products or their appropriateness for any user's purposes. In no event will the State of Alaska be liable for any incidental, indirect, special, consequential, or other damages suffered by the user or any other person or entity whether from the use of the electronic services or products or any failure thereof or otherwise. In no event will the State of Alaska's liability to the Requestor or anyone else exceed the fee paid for the electronic service or product.

  4. How can I download or order the data?

Who wrote the metadata?

Dates:
Last modified: 13-Oct-2016
Metadata author:
Alaska Division of Geological & Geophysical Surveys
Metadata Manager
3354 College Road
Fairbanks, AK 99709-3707
USA

(907)451-5020 (voice)

Metadata standard:
FGDC Content Standard for Digital Geospatial Metadata (FGDC-STD-001-1998)
Metadata extensions used:

Generated by mp version 2.9.21 on Thu Oct 13 14:49:52 2016