Geologic Map of the Des Moines 7.5' quadrangle, King County, Washington

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: Derek B. Booth

Originator: Howard H. Waldron

Publication_Date: 2004

Title:

Geologic Map of the Des Moines 7.5' quadrangle, King County, Washington

Geospatial_Data_Presentation_Form: vector digital data

Other_Citation_Details:

Digital database and cartography by R.A. Haugerud, E.A. Barnett, and M.D. Anders

Online_Linkage: <http://pubs.usgs.gov/sim/2004/2855/>

Description:

Abstract:

The Des Moines quadrangle lies at the center of the Puget Lowland region's intensively developing urban core. Only a few km north lies the city of Seattle, about 20 km south is the city of Tacoma, and Seattle-Tacoma International Airport lies near the center of the quadrangle, perched high in the center of the upland plain. The map area expresses much of the tremendous range of Quaternary environments and deposits found throughout the central Puget Lowland. Much of the ground surface is mantled by a rolling surface of glacial till deposited during the last occupation of the Puget Lowland by a great continental ice sheet about 14,000 years ago. A complex sequence of older unconsolidated sediments extends far below sea level across most of the quadrangle, with bedrock exposed only in the extreme northeast corner of the quadrangle.

This geologic map database is compiled from previously published data and new mapping, that represents the general distribution of bedrock and surficial deposits in the Des Moines, WA 7.5-minute quadrangle. The map delineates units that are identified by general age and lithology following the stratigraphic nomenclature of the U.S. Geological Survey. The scale of the source map limits the spatial resolution (scale) of the database to 1:24,000 or smaller.

Purpose:

General-purpose geologic map at 1:24,000 scale. Provides geologic information for the regional study of materials properties, earth history, water resources, earthquake shaking hazards, landslide hazards, and mineral resources.

Supplemental_Information:

DIGITAL COMPILATION-Several different feature classes were generated within a geodatabase during the construction of the Des Moines quadrangle geologic map. The topographic base map remains as a digital raster graphic (DRG) and is overlain on the geology feature class in ArcMap at a 60% transparency level. Some custom menus were used to project, transform, edit, tag, and build points in the map. A digital layout or map collar was made with Adobe Illustrator. The map was exported from the layout view in ArcMap as an Adobe Illustrator file and added to a single Adobe Illustrator file that also contained the description of map units, correlation of map units, cross sections, and an index map. Differences between the maps as they appear in the final map sheet and as they appear in the either the .mxd or .pmf files represent changes made in the Adobe Illustrator file to the symbology only and do not reflect any changes in the actual source data. The map is in UTM projection, zone 10, meters, and 1:24,000 scale. The explanatory pamphlet was saved to PDF from Microsoft Word.

BASE MAP-The base map for the digital compilation is a Digital Raster Graphic (DRG) of the U.S. Geological Survey, 1:24,000-scale topographic map of the Des Moines 7.5' quadrangle (1995), which has a 25-foot contour interval. The image inside the map neatline is georeferenced to the Universal Transverse Mercator projection. The horizontal positional accuracy and datum of the DRG matches the accuracy and datum of the source map. The base map layer is a digital image, but no information other than location is attached to the lines. The base map is provided for reference only.

Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 2004

Currentness_Reference: publication date

Status:

Progress: Complete

Maintenance_and_Update_Frequency: As needed

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -122.375

East_Bounding_Coordinate: -122.250

North_Bounding_Coordinate: 47.500

South_Bounding_Coordinate: 47.375

Keywords:

Theme:

Theme_Keyword_Thesaurus: None

Theme_Keyword: geology

Theme_Keyword: surficial geology

Theme_Keyword: bedrock geology

Theme_Keyword: geologic history

Place:

Place_Keyword: Des Moines

Place_Keyword: King County

Place_Keyword: Washington

Place_Keyword: Pacific Northwest

Place_Keyword: Puget Lowland

Temporal:

Temporal_Keyword: Quaternary

Temporal_Keyword: Tertiary

Access_Constraints: None

Use_Constraints:

SPATIAL RESOLUTION-Uses of this digital geologic map should not violate the spatial resolution of the data. Although the digital form of the data removes the constraint imposed by the scale of a paper map, the detail and accuracy inherent in map scale are also present in the digital data. The fact that this database was edited at a scale of 1:24,000 means that higher resolution information is not present in the dataset. Plotting at scales larger than 1:24,000 will not yield greater real detail, although it may reveal fine-scale irregularities below the intended resolution of the database. Similarly, where this database is used in combination with other data of higher resolution, the resolution of the combined output will be limited by the lower resolution of these data.

Point_of_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: United States Geological Survey

Contact_Person: Database Coordinator

Contact_Address:

Address_Type: mailing address

Address: 345 Middlefield Rd

Address: MS 973

City: Menlo Park

State_or_Province: CA

Postal_Code: 94025

Country: USA

Contact_Voice_Telephone: (650) 329-4935

Contact_Facsimile_Telephone: (650) 329-4936

Contact_Electronic_Mail_Address: kwheeler@usgs.gov

Data_Set_Credit:

Geology by Derek B. Booth, Howard H. Waldron. Digital database by Ralph A. Haugerud, Elizabeth A. Barnett, and Matt D. Anders

Native_Data_Set_Environment:

Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.0.0.535

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

The accuracy with which earth materials are classified by this map is unquantified. We believe it to be relatively good; better than (for example) that of Waldron (1962, Geologic map of the Des Moines quadrangle, Washington: U.S. Geological Survey Map GQ-159, scale 1:24,000). Sophisticated readers will note that map units are chosen to minimize potential misclassification of the age of materials. In the upland regions of the quadrangle, poor outcrop limits our ability to separate recessional outwash (Qvr, Qvrl) from advance outwash (Qva). We suspect that confusion between these units is more common than other misclassifications.

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:

Rarely is the locational accuracy of features on geologic maps precisely defined and this map is no exception. The circa 10 meters spatial precision of the digitization process provides a lower bound on the error with which features are located by this map. Many geologists understand that well-located (continuous line) contacts and faults should be within a millimeter or so on the map from their correct location. At 1:24,000 scale, the nominal scale of these data, one millimeter of locational error on the map corresponds to 24 meters on the ground. This may approximate the accuracy with which many features are located.

We note that on the steep bluffs of the Des Moines quadrangle, map features have commonly been located by elevation. They are thus shown here with a positional accuracy that corresponds to the circa +/- 20 meter (vertical) reproducibility of routine elevation determinations with a pocket barometer. In the upland regions of the quadrangle, contacts between till (Qvt) and recessional and advance outwash (Qvr, Qvrl, Qva) are commonly quite difficult to observe, due to limited outcrop and extensive regrading and paving. These contacts are in many places located with a horizontal precision no better than 100-200 meters.

Lineage:

Process_Step:

Process_Description:

Derek Booth plotted geologic contacts and registration tics on mylar film. This film was scanned at 400 dpi and vectorized automatically. The resulting files were then edited extensively on screen, largely by Elizabeth Barnett, using as a backdrop (1) a scan of Booth and Waldron's draft paper map, registered to the published DRG (digital raster graphic) of the 1:24,000-scale Des Moines 7.5-minute quadrangle, 1995 edition and (2) the DRG of the Des Moines quadrangle itself. Proof plots were inspected and revised by Booth; Barnett and Ralph Haugerud then digitized the revisions. The intrinsic locational error (digitized lines relative to map base) of this process is potentially as small as 3 meters, though in practice it is commonly as large as 10 meters. These data were transferred to Ray Wells, Project Chief of the Pacific Northwest Urban Corridor Geologic Mapping Project at the USGS, and imported into an ArcGIS 8.3 geodatabase. The geodatabase was upgraded to ArcGIS 9.0 prior to publication.

Process_Step:

Process_Description: Dataset copied.

Source_Used_Citation_Abbreviation: Q:\wa\tacoma\desmoines\des_moines.mdb

Spatial_Data_Organization_Information:

Point_and_Vector_Object_Information:

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Planar:

Grid_Coordinate_System:

Grid_Coordinate_System_Name: Universal Transverse Mercator

Universal_Transverse_Mercator:

UTM_Zone_Number: 10

Transverse_Mercator:

Scale_Factor_at_Central_Meridian: 0.999600

Longitude_of_Central_Meridian: -123.000000

Latitude_of_Projection_Origin: 0.000000

False_Easting: 500000.000000

False_Northing: 0.000000

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method: coordinate pair

Coordinate_Representation:

Abscissa_Resolution: 0.003328

Ordinate_Resolution: 0.003328

Planar_Distance_Units: meters

Geodetic_Model:

Horizontal_Datum_Name: North American Datum of 1927

Ellipsoid_Name: Clarke 1866

Semi-major_Axis: 6378206.400000

Denominator_of_Flattening_Ratio: 294.978698

Vertical_Coordinate_System_Definition:

Altitude_System_Definition:

Altitude_Resolution: 0.000010

Altitude_Encoding_Method:

Explicit elevation coordinate included with horizontal coordinates

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: Anno_81_86

Entity_Type_Definition:

Feature-linked annotation file linking dmn_geo_poly_Anno to dmn_geo_poly

Detailed_Description:

Entity_Type:

Entity_Type_Label: arc_poly_Topology

Entity_Type_Definition: Topology that includes dmn_geo_poly and dmn_geo_arc.

Detailed_Description:

Entity_Type:

Entity_Type_Label: dmn_geo_arc

Entity_Type_Definition: Contact and fault arc features.

Attribute:

Attribute_Label: OBJECTID

Attribute_Definition: Internal feature number.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain:

Sequential unique whole numbers that are automatically generated.

Attribute:

Attribute_Label: Shape

Attribute_Definition: Feature geometry.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain: Coordinates defining the features.

Attribute:

Attribute_Label: ID

Attribute_Definition: Internal feature number.

Attribute_Domain_Values:

Unrepresentable_Domain: Sequential whole numbers that are automatically generated.

Attribute:

Attribute_Label: FROMNODE

Attribute_Definition: Internal node number for the beginning of an arc (from-node).

Attribute_Domain_Values:

Unrepresentable_Domain: Whole numbers that are automatically generated.

Attribute:

Attribute_Label: TONODE

Attribute_Definition: Internal node number for the end of an arc (to-node).

Attribute_Domain_Values:

Unrepresentable_Domain: Whole numbers that are automatically generated.

Attribute:

Attribute_Label: LEFTPOLYGON

Attribute_Definition: Internal node number for the polygon to the left of the arc.

Attribute_Domain_Values:

Unrepresentable_Domain: Whole numbers that are automatically generated.

Attribute:

Attribute_Label: RIGHTPOLYGON

Attribute_Definition: Internal node number for the polygon to the right of the arc.

Attribute_Domain_Values:

Unrepresentable_Domain: Whole numbers that are automatically generated.

Attribute:

Attribute_Label: Shape_Length

Attribute_Definition: Length of feature in internal units.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain: Positive real numbers that are automatically generated.

Attribute:

Attribute_Label: LTYPE

Attribute_Definition: Geologic contact, fault, and other line description.

Attribute_Definition_Source: Author

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: contact

Enumerated_Domain_Value_Definition:

Boundary between geologic units, positional accuracy generally within 2 mm at 1:24,000 (48 m on the ground). Also see the Horizontal_Positional Accuracy_Report in the Data_Quality_Information section above.

Enumerated_Domain_Value_Definition_Source: Author

Enumerated_Domain:

Enumerated_Domain_Value: fault

Enumerated_Domain_Value_Definition:

Trace of fault, positional accuracy generally within 2 mm at 1:24,000 (48 m on the ground).

Enumerated_Domain_Value_Definition_Source: Author

Enumerated_Domain:

Enumerated_Domain_Value: fault dotted

Enumerated_Domain_Value_Definition:

Trace of fault concealed by younger unit, positional accuracy uncertain but probably generally within 5 mm at 1:24,000 (120 m on the ground).

Enumerated_Domain_Value_Definition_Source: Author

Enumerated_Domain:

Enumerated_Domain_Value: map boundary

Enumerated_Domain_Value_Definition: Boundary of this 1:24000-scale map.

Enumerated_Domain_Value_Definition_Source: Author

Enumerated_Domain:

Enumerated_Domain_Value: shoreline

Enumerated_Domain_Value_Definition:

Outline of a body of open water, positional accuracy within 1:24,000 National Map Accuracy Standards.

Enumerated_Domain_Value_Definition_Source: Author

Detailed_Description:

Entity_Type:

Entity_Type_Label: dmn_geo_poly

Entity_Type_Definition: Geologic unit polygons.

Attribute:

Attribute_Label: OID

Attribute_Definition: Internal feature number.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain:

Sequential unique whole numbers that are automatically generated.

Attribute:

Attribute_Label: Shape

Attribute_Definition: Feature geometry.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain: Coordinates defining the features.

Attribute:

Attribute_Label: Shape_Length

Attribute_Definition: Length of feature in internal units.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain: Positive real numbers that are automatically generated.

Attribute:

Attribute_Label: Shape_Area

Attribute_Definition: Area of feature in internal units squared.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain: Positive real numbers that are automatically generated.

Attribute:

Attribute_Label: UNIT

Attribute_Definition: Geologic unit name.

Attribute_Definition_Source: Author

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: m

Enumerated_Domain_Value_Definition:

Modified land (Holocene)-Sand and gravel as fill, as well as extensively graded natural deposits. Where topographic base map (ca. 1949) does not reflect subsequent human modification, original (unmodified) geologic deposit has been mapped where information is available.

Enumerated_Domain_Value_Definition_Source: Author

Enumerated_Domain:

Enumerated_Domain_Value: Qw

Enumerated_Domain_Value_Definition:

Wetland deposits (Holocene)-Peat and alluvium, poorly drained and intermittently wet. Grades into unit Qal. Compiled from King County (1983); however, mapped areas are not complete inventory of such deposits.

Enumerated_Domain_Value_Definition_Source: Author

Enumerated_Domain:

Enumerated_Domain_Value: Qb

Enumerated_Domain_Value_Definition:

Beach deposits (Holocene)-Well-sorted sand, pebbles, silt, and shells deposited or reworked by wave action. Includes upper-beach deposits above mean high-water line, extensive tideflats below mean high-water line, and local thin veneer of modern beach sediment that overlies older deposits. At stream mouths, grades into unit Qal.

Enumerated_Domain_Value_Definition_Source: Author

Enumerated_Domain:

Enumerated_Domain_Value: Qls

Enumerated_Domain_Value_Definition:

Landslide deposits (Holocene)-Diamict of broken to internally coherent surficial deposits that have been transported downslope en masse by gravity. Numerous unmapped areas of both landslide and related mass-wastage deposits are present along coastal bluffs of Puget Sound, as well as in ravines that drain east to Green River, particularly where coarse deposits (units Qva and Qpogc) overlie fine deposits (particularly unit Qpff).

Enumerated_Domain_Value_Definition_Source: Author

Enumerated_Domain:

Enumerated_Domain_Value: Qmw

Enumerated_Domain_Value_Definition:

Mass-wastage deposits (Holocene)-Undifferentiated colluvium, soil, and landslide debris having indistinct morphology. Mapped along coast 2 km south of north map boundary as fan-shaped deposit where landslide debris intermingles with stream-channel alluvium. Numerous unmapped areas of mass-wastage deposits are present elsewhere in quadrangle along coastal bluffs of Puget Sound and in ravines draining eastward to Green River and Duwamish River valleys. Deposits, both mapped and unmapped, include abundant discrete landslides that are meters to tens of meters in lateral extent.

Enumerated_Domain_Value_Definition_Source: Author

Enumerated_Domain:

Enumerated_Domain_Value: Qal

Enumerated_Domain_Value_Definition:

Alluvium (Holocene)-Moderately well sorted deposits of cobble gravel, pebbly sand, and sandy silt along flood plain of Green River and Duwamish River, and alluvial fans at mouths of small streams along Puget Sound, where they are gradational with sediments of unit Qb.

Enumerated_Domain_Value_Definition_Source: Author

Enumerated_Domain:

Enumerated_Domain_Value: Qvr

Enumerated_Domain_Value_Definition:

Recessional outwash deposits-Stratified sand and gravel, moderately well sorted to well sorted; less common silty sand and silt. Deposited in broad anastomosing outwash channels that carried south-draining glacial meltwater away from ice margin during ice retreat. Typically slightly oxidized. Deposits that are less than about 1 m thick not shown on map. Locally subdivided into:.

Enumerated_Domain_Value_Definition_Source: Author

Enumerated_Domain:

Enumerated_Domain_Value: Qvrl

Enumerated_Domain_Value_Definition:

Recessional lacustrine deposits-Very fine-grained sand, silt, and clay deposited in small lakes during ice recession.

Enumerated_Domain_Value_Definition_Source: Author

Enumerated_Domain:

Enumerated_Domain_Value: Qvi

Enumerated_Domain_Value_Definition:

Ice-contact deposits-Deposits that are similar in texture to unit Qvr but commonly are less well sorted and have silt-rich matrix. Contains lenses and pods of till. Deposits occur along Duwamish River and Green River valleys. From Tukwila south to edge of quadrangle, they form a kame terrace that was built against late-recessional ice tongue in Green River valley.

Enumerated_Domain_Value_Definition_Source: Author

Enumerated_Domain:

Enumerated_Domain_Value: Qvt

Enumerated_Domain_Value_Definition:

Till-Compact diamict containing subrounded to well-rounded clasts in massive, silt- or sand-rich matrix. Glacially transported and deposited. Generally a few meters to a few tens of meters thick, forming an undulatory surface. Also found sporadically within areas mapped as unit Qvi.

Enumerated_Domain_Value_Definition_Source: Author

Enumerated_Domain:

Enumerated_Domain_Value: Qva

Enumerated_Domain_Value_Definition:

Advance outwash deposits-Well-bedded sand and gravel deposited subaqueously or by streams and rivers in front of advancing ice sheet. Almost devoid of silt or clay, except near base of unit. Generally unoxidized.

Enumerated_Domain_Value_Definition_Source: Author

Enumerated_Domain:

Enumerated_Domain_Value: Qpf

Enumerated_Domain_Value_Definition:

Deposits of pre-Fraser glaciation age (Pleistocene)-Weakly to moderately oxidized sand and gravel, lacustrine sediments containing local peat layers, and moderately to strongly oxidized diamict composed of silty matrix and rounded gravel clasts. Includes deposits of both glacial and nonglacial origin. Locally mapped as:.

Enumerated_Domain_Value_Definition_Source: Author

Enumerated_Domain:

Enumerated_Domain_Value: Qpfc

Enumerated_Domain_Value_Definition: Coarse-grained deposits-Predominantly gravel and sand.

Enumerated_Domain_Value_Definition_Source: Author

Enumerated_Domain:

Enumerated_Domain_Value: Qpff

Enumerated_Domain_Value_Definition: Fine-grained deposits-Predominantly silt and clay.

Enumerated_Domain_Value_Definition_Source: Author

Enumerated_Domain:

Enumerated_Domain_Value: Qpfnc

Enumerated_Domain_Value_Definition:

Coarse-grained nonglacial deposits-Pre-dominantly gravel and sand.

Enumerated_Domain_Value_Definition_Source: Author

Enumerated_Domain:

Enumerated_Domain_Value: Qpfnf

Enumerated_Domain_Value_Definition: Fine-grained nonglacial deposits-Predominantly silt and clay.

Enumerated_Domain_Value_Definition_Source: Author

Enumerated_Domain:

Enumerated_Domain_Value: Qpof

Enumerated_Domain_Value_Definition:

Fine-grained deposits-Silt at north and south edges of map of indeterminate glacial or nonglacial origin; underlies glacial deposits of pre-Olympia age (Qpogc).

Enumerated_Domain_Value_Definition_Source: Author

Enumerated_Domain:

Enumerated_Domain_Value: Qpogc

Enumerated_Domain_Value_Definition: Coarse-grained deposits-Predominantly gravel and sand.

Enumerated_Domain_Value_Definition_Source: Author

Enumerated_Domain:

Enumerated_Domain_Value: Qrgf

Enumerated_Domain_Value_Definition:

Fine-grained deposits-Fine-grained silt con-taining dropstones or interstratified with pebbly diamict and so of presumed glacial origin. Reversely magnetized and thus presumably more than 774,000 years old.

Enumerated_Domain_Value_Definition_Source: Author

Enumerated_Domain:

Enumerated_Domain_Value: Qrn

Enumerated_Domain_Value_Definition:

Nonglacial deposits-Silt, fine- to medium-grained sand, clay, ash, peat, and mudflow deposits. Abundant wood and volcanic debris demonstrate nonglacial origin. Underlies silt of unit Qrg in bluffs near Zenith.

Enumerated_Domain_Value_Definition_Source: Author

Enumerated_Domain:

Enumerated_Domain_Value: Ti

Enumerated_Domain_Value_Definition:

Intrusive rocks (Eocene)-Irregular masses of porphyritic basalt and andesite.

Enumerated_Domain_Value_Definition_Source: Author

Enumerated_Domain:

Enumerated_Domain_Value: Tpr

Enumerated_Domain_Value_Definition:

Renton Formation-Nonmarine arkosic and feldspathic micaceous sandstone; also siltstone and claystone containing locally abundant coal beds.

Enumerated_Domain_Value_Definition_Source: Author

Enumerated_Domain:

Enumerated_Domain_Value: Tpt

Enumerated_Domain_Value_Definition:

Tukwila Formation-Andesitic sandstone, tuff, mudflow breccia, and minor lava flows or sills. Locally subdivided into:.

Enumerated_Domain_Value_Definition_Source: Author

Enumerated_Domain:

Enumerated_Domain_Value: Tpta

Enumerated_Domain_Value_Definition: Arkosic sandstone-Similar to Renton Formation.

Enumerated_Domain_Value_Definition_Source: Author

Enumerated_Domain:

Enumerated_Domain_Value: Tptm

Enumerated_Domain_Value_Definition:

Marine and nonmarine sedimentary rocks-Volcanic conglomerate and marine sandstone; some siltstone and shale. Mostly composed of volcanic rock fragments and minor arkose. Deposits at north edge of quadrangle contain marine shells.

Enumerated_Domain_Value_Definition_Source: Author

Enumerated_Domain:

Enumerated_Domain_Value: Water

Enumerated_Domain_Value_Definition: Open water.

Enumerated_Domain_Value_Definition_Source: Author.

Attribute:

Attribute_Label: SUB

Attribute_Definition: Identifier for unit names with a subscript.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Null

Enumerated_Domain_Value_Definition: No subscript in unit name.

Enumerated_Domain_Value_Definition_Source: Author

Enumerated_Domain:

Enumerated_Domain_Value: 1

Enumerated_Domain_Value_Definition: Last letter of the unit name is subscript.

Enumerated_Domain_Value_Definition_Source: Author

Attribute:

Attribute_Label: UNIT_PRNT

Attribute_Definition:

Identifier for units with patterns that overprint the unit color.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Null

Enumerated_Domain_Value_Definition: No overprint pattern.

Enumerated_Domain_Value_Definition_Source: Author

Enumerated_Domain:

Enumerated_Domain_Value: Qb_prnt

Enumerated_Domain_Value_Definition: Overprint pattern for Qb.

Enumerated_Domain_Value_Definition_Source: Author

Enumerated_Domain:

Enumerated_Domain_Value: Qmw_prnt

Enumerated_Domain_Value_Definition: Overprint pattern for Qmw.

Enumerated_Domain_Value_Definition_Source: Author

Enumerated_Domain:

Enumerated_Domain_Value: Qvi_prnt

Enumerated_Domain_Value_Definition: Overprint pattern for Qvi.

Enumerated_Domain_Value_Definition_Source: Author

Enumerated_Domain:

Enumerated_Domain_Value: Qvrl_prnt

Enumerated_Domain_Value_Definition: Overprint pattern for Qvrl.

Enumerated_Domain_Value_Definition_Source: Author

Enumerated_Domain:

Enumerated_Domain_Value: Qw_prnt

Enumerated_Domain_Value_Definition: Overprint pattern for Qw.

Enumerated_Domain_Value_Definition_Source: Author

Enumerated_Domain:

Enumerated_Domain_Value: Ti_prnt

Enumerated_Domain_Value_Definition: Overprint pattern for Ti.

Enumerated_Domain_Value_Definition_Source: Author

Enumerated_Domain:

Enumerated_Domain_Value: Tpt_prnt

Enumerated_Domain_Value_Definition: Overprint pattern for Tpt.

Enumerated_Domain_Value_Definition_Source: Author

Detailed_Description:

Entity_Type:

Entity_Type_Label: dmn_geo_poly_Anno

Entity_Type_Definition:

Feature-linked annotation for geologic unit polygons (dmn_geo_poly).

Attribute:

Attribute_Label: OBJECTID

Attribute_Definition: Internal feature number.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain:

Sequential unique whole numbers that are automatically generated.

Attribute:

Attribute_Label: SHAPE

Attribute_Definition: Feature geometry.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain: Coordinates defining the features.

Attribute:

Attribute_Label: FeatureID

Attribute:

Attribute_Label: ZOrder

Attribute:

Attribute_Label: AnnotationClassID

Attribute:

Attribute_Label: Element

Attribute:

Attribute_Label: SHAPE_Length

Attribute_Definition: Length of feature in internal units.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain: Positive real numbers that are automatically generated.

Attribute:

Attribute_Label: SHAPE_Area

Attribute_Definition: Area of feature in internal units squared.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain: Positive real numbers that are automatically generated.

Detailed_Description:

Entity_Type:

Entity_Type_Label: dmn_geo_traces_arc

Entity_Type_Definition: Bedding traces of geologic units.

Attribute:

Attribute_Label: OBJECTID

Attribute_Definition: Internal feature number.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain:

Sequential unique whole numbers that are automatically generated.

Attribute:

Attribute_Label: Shape

Attribute_Definition: Feature geometry.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain: Coordinates defining the features.

Attribute:

Attribute_Label: FNODE_

Attribute:

Attribute_Label: TNODE_

Attribute:

Attribute_Label: LPOLY_

Attribute:

Attribute_Label: RPOLY_

Attribute:

Attribute_Label: LENGTH

Attribute:

Attribute_Label: DMNL_

Attribute:

Attribute_Label: DMNL_ID

Attribute:

Attribute_Label: LTYPE

Attribute_Definition: Bedding trace description.

Attribute_Definition_Source: Author

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: till bed

Enumerated_Domain_Value_Definition: Pre-Vashon till.

Enumerated_Domain:

Enumerated_Domain_Value: peat bed

Enumerated_Domain_Value_Definition: Peat bed or other organic-rich layer.

Attribute:

Attribute_Label: Shape_Length

Attribute_Definition: Length of feature in internal units.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain: Positive real numbers that are automatically generated.

Detailed_Description:

Entity_Type:

Entity_Type_Label: dmn_ocean_poly

Entity_Type_Definition: Polygon masking ocean.

Attribute:

Attribute_Label: OBJECTID

Attribute_Definition: Internal feature number.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain:

Sequential unique whole numbers that are automatically generated.

Attribute:

Attribute_Label: Shape

Attribute_Definition: Feature geometry.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain: Coordinates defining the features.

Attribute:

Attribute_Label: AREA

Attribute:

Attribute_Label: PERIMETER

Attribute:

Attribute_Label: DMNG_

Attribute:

Attribute_Label: DMNG_ID

Attribute:

Attribute_Label: UNIT

Attribute_Definition: Geologic unit.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: water

Enumerated_Domain_Value_Definition: Open water.

Attribute:

Attribute_Label: SUB

Attribute_Definition: Identifier for unit names with a subscript.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Null

Enumerated_Domain_Value_Definition: No subscript in unit name.

Attribute:

Attribute_Label: Shape_Length

Attribute_Definition: Length of feature in internal units.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain: Positive real numbers that are automatically generated.

Attribute:

Attribute_Label: Shape_Area

Attribute_Definition: Area of feature in internal units squared.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain: Positive real numbers that are automatically generated.

Detailed_Description:

Entity_Type:

Entity_Type_Label: Anno_3_10

Entity_Type_Definition:

Feature-linked annotation file linking dmn_sam_pt_Anno to dmn_sam_pt.

Detailed_Description:

Entity_Type:

Entity_Type_Label: dmn_sam_pt

Entity_Type_Definition: Locations of geologic samples.

Attribute:

Attribute_Label: OBJECTID

Attribute_Definition: Internal feature number.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain:

Sequential unique whole numbers that are automatically generated.

Attribute:

Attribute_Label: Shape

Attribute_Definition: Feature geometry.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain: Coordinates defining the features.

Attribute:

Attribute_Label: AREA

Attribute:

Attribute_Label: PERIMETER

Attribute:

Attribute_Label: DMNA_

Attribute:

Attribute_Label: DMNA_ID

Attribute:

Attribute_Label: STATION

Attribute_Definition: Sample location identifier.

Attribute:

Attribute_Label: REMANENCE

Attribute_Definition: Magnetization of sample.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: T

Enumerated_Domain_Value_Definition: Transitional magnetization.

Enumerated_Domain_Value_Definition_Source: Author

Enumerated_Domain:

Enumerated_Domain_Value: R

Enumerated_Domain_Value_Definition: Reversed magnetization.

Enumerated_Domain_Value_Definition_Source: Author

Enumerated_Domain:

Enumerated_Domain_Value: Null

Enumerated_Domain_Value_Definition: Not a magnetization sample.

Enumerated_Domain_Value_Definition_Source: Author

Attribute:

Attribute_Label: C14

Attribute_Definition: Identifier for radiocarbon sample.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: X

Enumerated_Domain_Value_Definition: Denotes a radiocarbon sample.

Enumerated_Domain_Value_Definition_Source: Author

Enumerated_Domain:

Enumerated_Domain_Value: Null

Enumerated_Domain_Value_Definition: Not a radiocarbon sample.

Enumerated_Domain_Value_Definition_Source: Author

Attribute:

Attribute_Label: DIGSCALE

Attribute:

Attribute_Label: POLYGONID

Attribute:

Attribute_Label: SCALE

Attribute:

Attribute_Label: ANGLE

Attribute:

Attribute_Label: SYMBOL

Attribute_Definition: Description of symbol to be used on map.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: paleomag, trans

Enumerated_Domain_Value_Definition: Paleomagnetization sample with transitional polarity.

Enumerated_Domain_Value_Definition_Source: Author

Enumerated_Domain:

Enumerated_Domain_Value: paleomag, reversed

Enumerated_Domain_Value_Definition: Paleomagnetization sample with reversed polarity.

Enumerated_Domain_Value_Definition_Source: Author

Enumerated_Domain:

Enumerated_Domain_Value: C14

Enumerated_Domain_Value_Definition: Radiocarbon sample location.

Enumerated_Domain_Value_Definition_Source: Author

Detailed_Description:

Entity_Type:

Entity_Type_Label: dmn_sam_pt_Anno

Entity_Type_Definition: Feature-linked annotation for sample locations (dmn_sam_pt).

Attribute:

Attribute_Label: OBJECTID

Attribute_Definition: Internal feature number.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain:

Sequential unique whole numbers that are automatically generated.

Attribute:

Attribute_Label: SHAPE

Attribute_Definition: Feature geometry.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain: Coordinates defining the features.

Attribute:

Attribute_Label: FeatureID

Attribute:

Attribute_Label: ZOrder

Attribute:

Attribute_Label: AnnotationClassID

Attribute:

Attribute_Label: Element

Attribute:

Attribute_Label: SHAPE_Length

Attribute_Definition: Length of feature in internal units.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain: Positive real numbers that are automatically generated.

Attribute:

Attribute_Label: SHAPE_Area

Attribute_Definition: Area of feature in internal units squared.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain: Positive real numbers that are automatically generated.

Detailed_Description:

Entity_Type:

Entity_Type_Label: Anno_4_9

Entity_Type_Definition:

Feature-linked annotation file linking dmn_stx_pt_Anno to dmn_stx_pt.

Detailed_Description:

Entity_Type:

Entity_Type_Label: dmn_stx_pt

Entity_Type_Definition: Geologic structure point features.

Attribute:

Attribute_Label: OBJECTID

Attribute_Definition: Internal feature number.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain:

Sequential unique whole numbers that are automatically generated.

Attribute:

Attribute_Label: Shape

Attribute_Definition: Feature geometry.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain: Coordinates defining the features.

Attribute:

Attribute_Label: AREA

Attribute:

Attribute_Label: PERIMETER

Attribute:

Attribute_Label: DMNS_

Attribute:

Attribute_Label: DMNS_ID

Attribute:

Attribute_Label: STYPE

Attribute_Definition: Symbol to be used on map.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: bedding

Enumerated_Domain_Value_Definition: Inclined bedding.

Enumerated_Domain_Value_Definition_Source: Author

Enumerated_Domain:

Enumerated_Domain_Value: horizontal bedding

Enumerated_Domain_Value_Definition: Horizontal bedding.

Enumerated_Domain_Value_Definition_Source: Author

Attribute:

Attribute_Label: AZI

Attribute_Definition: Azimuth of the strike of dipping beds (degrees).

Attribute:

Attribute_Label: INC

Attribute_Definition: Inclination of dipping beds (degrees).

Attribute:

Attribute_Label: NOPLOT

Attribute:

Attribute_Label: POLYGONID

Attribute:

Attribute_Label: SCALE

Attribute:

Attribute_Label: ANGLE

Attribute_Definition: The result of 360 - AZI value.

Detailed_Description:

Entity_Type:

Entity_Type_Label: dmn_stx_pt_Anno

Entity_Type_Definition: feature linked annotation for dmn_stx_pt

Attribute:

Attribute_Label: OBJECTID

Attribute_Definition: Internal feature number.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain:

Sequential unique whole numbers that are automatically generated.

Attribute:

Attribute_Label: SHAPE

Attribute_Definition: Feature geometry.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain: Coordinates defining the features.

Attribute:

Attribute_Label: FeatureID

Attribute:

Attribute_Label: ZOrder

Attribute:

Attribute_Label: AnnotationClassID

Attribute:

Attribute_Label: Element

Attribute:

Attribute_Label: SHAPE_Length

Attribute_Definition: Length of feature in internal units.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain: Positive real numbers that are automatically generated.

Attribute:

Attribute_Label: SHAPE_Area

Attribute_Definition: Area of feature in internal units squared.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain: Positive real numbers that are automatically generated.

Distribution_Information:

Resource_Description: USGS Scientific Investigations Map 2855

Distribution_Liability:

Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Although this publication has been subjected to rigorous review and is substantially complete, the USGS reserves the right to revise the data pursuant to further analysis and review. Furthermore, it is released on condition that neither the USGS nor the United States Government may be held liable for any damages resulting from its authorized or unauthorized use.

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Transfer_Size: 0.216

Fees:

Plotting fees are set by USGS Information Services, and may be obtained by contacting them via the contact information given above.

Metadata_Reference_Information:

Metadata_Date: 20041111

Metadata_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization:

United States Geological Survey, Pacific Northwest Urban Corridor Geologic Mapping Project

Contact_Person: Karen Wheeler

Contact_Address:

Address_Type: mailing address

Address: U.S. Geological Survey

Address: Western Region Earth Surface Processes Team

Address: 345 Middlefield Road MS-973

City: Menlo Park

State_or_Province: California

Postal_Code: 94025

Country: USA

Contact_Voice_Telephone: (650) 329-4935

Contact_Electronic_Mail_Address: kwheeler@usgs.gov

Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata

Metadata_Standard_Version: FGDC-STD-001-1998

Metadata_Time_Convention: local time

Metadata_Extensions:

Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>

Profile_Name: ESRI Metadata Profile