Identification_Information: Citation: Citation_Information: Originator: Philip A. Dinterman and Alison R. Duvall Publication_Date: 2009 Title: Preliminary Geologic Map of the Buxton 7.5” Quadrangle, Washington County, Oregon Geospatial_Data_Presentation_Form: vector digital data Series_Information: Series_Name: Open-File Report Issue_Identification: OFR 2009-1186 Online_Linkage: http://pubs.usgs.gov/of/2009/1186 Description: Abstract: This digital map database, compiled from previously published and unpublished data, and new mapping by the authors, represents the general distribution of bedrock and surficial deposits of the Buxton 7.5-minute quadrangle. The database delineates map units that are identified by general age and lithology following the stratigraphic nomenclature of the U.S. Geological Survey. The scale of the source maps limits the spatial resolution (scale) of the database to 1:24,000 or smaller. Purpose: This database and accompanying plot files depict the distribution of geologic materials and structures at a regional (1:24,000) scale. The report is intended to provide geologic information for the regional study of materials properties, earthquake shaking, landslide potential, mineral hazards, seismic velocity, and earthquake faults. In addition, the report contains new information and interpretations about the regional geologic history and framework. However, the regional scale of this report does not provide sufficient detail for site development purposes. Supplemental_Information: DIGITAL COMPILATION-Several ESRI ArcGIS feature classes were generated within an ArcGIS personal geodatabase during the construction of the Buxton 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 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, NAD83, meters, and 1:24,000 scale. 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 Buxton 7.5' quadrangle (1992), which has a 40-foot contour interval. The image inside the map neatline is georeferenced to the Universal Transverse Mercator projection, zone 10, NAD27. 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. 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. Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2009 Currentness_Reference: publication date Status: Progress: Complete Maintenance_and_Update_Frequency: As needed Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -123.251785 East_Bounding_Coordinate: -123.120681 North_Bounding_Coordinate: 45.750047 South_Bounding_Coordinate: 45.624629 Keywords: Theme: Theme_Keyword: Geology Place: Place_Keyword: Pacific Northwest Place_Keyword: Oregon Place_Keyword: Washington County Place_Keyword: Buxton Place_Keyword: Manning Place_Keyword: Wildcat Mountain Place_Keyword: Green Mountain Place_Keyword: Sunset Tunnel Stratum: Stratum_Keyword: Keasey Formation Stratum_Keyword: Scappoose Formation Stratum_Keyword: Pittsburg Bluff Formation Stratum_Keyword: Grande Ronde Basalt Access_Constraints: None Use_Constraints: 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 for 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. Native_Data_Set_Environment: Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcCatalog 9.2.6.1500 Data_Quality_Information: Lineage: Process_Step: Process_Description: Dataset copied. Source_Used_Citation_Abbreviation: \\typhoon.wr.usgs.gov\esp2\wells12\data\or\nehalem\buxton\Buxton.mdb Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Vector Point_and_Vector_Object_Information: SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: String Point_and_Vector_Object_Count: 139 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: 0.010000 Ordinate_Resolution: 0.010000 Planar_Distance_Units: meters Geodetic_Model: Horizontal_Datum_Name: North American Datum of 1983 Ellipsoid_Name: Geodetic Reference System 80 Semi-major_Axis: 6378137.000000 Denominator_of_Flattening_Ratio: 298.257222 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: BuxtonContacts 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: LTYPE Attribute_Definition: Geologic contact description Attribute_Definition_Source: Author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: contact, certain Enumerated_Domain_Value_Definition: Boundary between geologic units that has positional accuracy generally within 2 mm at 1:24,000 (48 m on the ground) Enumerated_Domain: Enumerated_Domain_Value: contact, approx. located Enumerated_Domain_Value_Definition: Approximately located boundary between geologic units; positional accuracy generally within 5 mm at 1:24,000 (120 m on the ground) Enumerated_Domain: Enumerated_Domain_Value: contact, concealed Enumerated_Domain_Value_Definition: Boundary between geologic units that is concealed by a younger unit; positional accuracy uncertain but probably generally within 5 mm at 1:24,000 (120 m on the ground) Enumerated_Domain: Enumerated_Domain_Value: contact, inferred Enumerated_Domain_Value_Definition: Boundary between geologic units that is of uncertain location; positional accuracy uncertain; contact exists but location inferred from indirect evidence. Enumerated_Domain: Enumerated_Domain_Value: fault, certain Enumerated_Domain_Value_Definition: Trace of fault, positional accuracy generally within 2 mm at 1:24,000 (48 m on the ground) Enumerated_Domain: Enumerated_Domain_Value: fault, concealed 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: Enumerated_Domain_Value: fault, inferred Enumerated_Domain_Value_Definition: Trace of fault of uncertain location; positional accuracy uncertain; fault exists but location inferred from indirect evidence. Enumerated_Domain: Enumerated_Domain_Value: map boundary Enumerated_Domain_Value_Definition: map boundary of this 1:24000 study Enumerated_Domain: Enumerated_Domain_Value: fault, approx. located Enumerated_Domain_Value_Definition: Approximately located fault trace; positional accuracy generally within 5 mm at 1:24,000 (120 m on the ground) Enumerated_Domain: Enumerated_Domain_Value: fault, approx. located, queried Enumerated_Domain_Value_Definition: Approximately located fault trace; positional accuracy generally within 5 mm at 1:24,000 (120 m on the ground) identity or existance questionable; positional accuracy uncertain; fault exists but location inferred from indirect evidence. Enumerated_Domain: Enumerated_Domain_Value: normal fault, approx. located_mS Enumerated_Domain_Value_Definition: Trace of normal fault, approximately located; positional accuracy generally within 5 mm at 1:24,000 (120 m on the ground); mS indicates fault line segment used for cartographic marker Enumerated_Domain: Enumerated_Domain_Value: normal fault, concealed_mS Enumerated_Domain_Value_Definition: Trace of normal fault concealed by younger unit positional accuracy uncertain but probably generally within 5 mm at 1:24,000 (120 m on the ground); mS indicates fault line segment used for cartographic marker 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. Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: BuxtonGeologyPolys 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: Ptype Attribute_Definition: Geologic Unit Abbreviation Attribute_Definition_Source: Authors Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Qal Enumerated_Domain_Value_Definition: Alluvial deposits (Holocene)—Unconsolidated clay, silt, sand, and gravel deposited in floodplains and channels of rivers and streams. Locally includes colluvium and terrace deposits along valley margin Enumerated_Domain: Enumerated_Domain_Value: Qls Enumerated_Domain_Value_Definition: Landslide deposits (Holocene and Pleistocene)— Unconsolidated chaotic mixture of weathered angular to subrounded clasts of sandstone, mudstone, and basaltic bedrock, commonly in a yellowish-brown mud-dominated matrix derived from upslope. Forms hummocky topography and may include thick colluvial deposits, and older accumulations with subdued physiographic expression are also included in this unit. Some landslides contain coherent blocks of units indicating large slump and slide blocks Enumerated_Domain: Enumerated_Domain_Value: Qc Enumerated_Domain_Value_Definition: Colluvium Deposits (upper Pleistocene)—Gently southeast-dipping surface with paleosoils and large-scale blocks of consolidated material including Tgwr and Tpd bedrock. Remnant erosional surface described as "Scofield Surface" by Van Atta (1971) with in-place feeder dikes of basalt flows that have subsequently been removed Enumerated_Domain: Enumerated_Domain_Value: Qoal Enumerated_Domain_Value_Definition: Older Alluvial Deposits (upper Pleistocene)—Unconsolidated clay, silt, sand, and gravel deposited in floodplains and channels of rivers and streams Enumerated_Domain: Enumerated_Domain_Value: Tgsb Enumerated_Domain_Value_Definition: Grande Ronde Basalt (lower to middle Miocene)—Light to dark gray on fresh surface; dark gray to black weathered surface with common thick weathering rinds. Aphyric, microphyric, and sparsely plagioclase-phyric lava flows of tholeiitic basaltic andesite with low TiO2 (<2.4%) contents (Mangan and others, 1986; Beeson and others, 1989; Reidel and others, 1989). 40Ar/39Ar ages from the Columbia Plateau indicate emplacement between 16.5 to 15.6 Ma (Reidel and others, 1989). Flows in this quadrangle are assigned on the basis of field, chemical, and paleomagnetic data to informal members recognized on Columbia Plateau (Reidel and others, 1989; Reidel, 1998). Sentinel Bluffs Member (middle Miocene)—One flow of blocky to columnar-jointed, light- to dark-gray basalt. Fine to medium crystalline, commonly diktytaxitic, sparsely plagioclase microphyric, and rarely plagioclase phyric with small (<0.5 cm in size) tabular plagioclase phenocrysts. The Sentinel Bluffs flow is distinguished from both the younger Frenchman Springs flows and older Grande Ronde units on the combined basis of stratigraphic position, geochemical composition, lithology, and paleomagnetic polarity (see Reidel and others, 1989; Beeson and others, 1989). TiO2 <2%, MgO > 4.5% (table 1). Unit thickness is variable, ranging to 30 m in thickness Enumerated_Domain: Enumerated_Domain_Value: Tgww Enumerated_Domain_Value_Definition: Winter Water Member (middle Miocene)—One or two flows of entablature-jointed, dark-gray to black, commonly porphyritic basalt. Flows are typically microphyric and phyric to abundantly phyric with uncommon small (<0.3 cm) stellate plagioclase glomerocrysts; some contain acicular microphenocryts. Distribution of plagioclase glomerocrysts is uneven. Winter Water flows are distinguished from other Grande Ronde units on the combined basis of stratigraphic position, lithology, geochemical composition (see table 1), and paleomagnetic polarity (see Reidel and others, 1989; Beeson and others, 1989). Unit thickness within the map area is variable, ranging from 0 to > 40 m-thick Enumerated_Domain: Enumerated_Domain_Value: Tgo Enumerated_Domain_Value_Definition: Ortley Member (lower Miocene)—At least two flows of entablature-jointed dark-gray basalt. Fresh exposures are dark gray to black; weathered surfaces are greenish gray to dark gray. Ortley flows are commonly glassy to very finely crystalline and aphyric but are commonly microphyric in map area. This unit is distinguished from other Grande Ronde units on the combined basis of stratigraphic position, lithology, geochemical composition (see table 1). Unit thickness is variable, ranging from 0 to >90 m thick Enumerated_Domain: Enumerated_Domain_Value: TgN2 Enumerated_Domain_Value_Definition: N2 flows undifferentiated (lower to middle Miocene)—One to three flows of normal polarity entablature-jointed, light-gray, commonly microphyric basalt. This unit contains basalt flows from normal polarity (N2) flows in the upper part of the Grande Ronde sequence as described by Reidel and others (1989). This unit includes probable Winter Water and Ortley flows. These flows cannot be differentiated due to extensively weathered outcrops and are, therefore, grouped in this unit Enumerated_Domain: Enumerated_Domain_Value: Tgwr Enumerated_Domain_Value_Definition: Wapshilla Ridge Member (lower Miocene)—One or two flows that typically display entablature jointing. Fresh exposures are dark gray to black; weathered surfaces are greenish gray to dark gray, commonly glassy to very fine grained with distinctive abundant acicular microphenocrysts of plagioclase. The unit shows an increase in TiO2 upsection with two distinct chemical signatures; an underlying unit with lower TiO2 values and an overlying sequence of flows with higher TiO2 values (table 1). It is likely that Tgwr deposits in this area have filled in remnant topography as intracanyon flows, because basal basalt conglomerates are observed. This unit is distinguished from other Grande Ronde units on the combined basis of stratigraphic position, appearance, and reversed paleomagnetic polarity. Unit thickness is variable, ranging up to 100 m thick. Deeply weathered to deep-dark- red, crumbly altered basalt with spheroidal to ellipsoidal corestones Enumerated_Domain: Enumerated_Domain_Value: Tgdg Enumerated_Domain_Value_Definition: Downey Gulch Member (lower Miocene)—At least three flows of entablature-colonnade-jointed basalt. Exposures are dark gray to black, very fine-grained with acicular microphenocryts of plagioclase. Three normal polarity flows underlie reversed polarity Tgwr flows on Wildcat Mountain. It is likely that Tgdg deposits in this area have filled in remnant topography as intracanyon flows. This unit is distinguished from other Grande Ronde units on the combined basis of stratigraphic position and normal paleomagnetic polarity. Unit thickness within the map area is up to 75m thick Enumerated_Domain: Enumerated_Domain_Value: Tsd Enumerated_Domain_Value_Definition: Scappoose Formation of Warren and others (1945, 1946) (Oligocene)—Massive to parallel-laminated, light-gray to yellow tuffaceous fine-grained sandstone, siltstone, claystone and some tuffs interbedded with medium- to coarse-grained, micaceous, arkosic-tuffaceous sandstone. Cliff-forming unit. Some tuff beds observed, 1-2 m thick. Tuffaceous siltstone is commonly micaceous, heavily bioturbated (small hook-shaped helminthoidia), with burrows filled with coarser, darker grains of fecal pellets and carbonized wood fragments. Tuffaceous-arkosic sandstone is commonly orange to buff colored, pumiceous, quartz-rich. Dominantly shallow marine environment. A diverse assemblage of molds and casts of shallow marine mollusks has been correlated to the Blakely Stage (late Oligocene to early Miocene) (Warren and others, 1945; Warren and Norbisrath, 1946) Enumerated_Domain: Enumerated_Domain_Value: Tpd Enumerated_Domain_Value_Definition: Pittsburg Bluff Formation, Divide member of Niem and others (1992) (lower to middle Oligocene)—Fine- to coarse-grained, yellow to orange-brown arkosic sandstone, commonly trough to planar crossbedded, contains some mudstone rip-up clasts, channelized deposits. Sandstone is micaceous, quartz and feldspar rich, and rarely pebbly Enumerated_Domain: Enumerated_Domain_Value: Tpe Enumerated_Domain_Value_Definition: Pittsburg Bluff Formation, East Fork member of Niem and others (1992) lower Oligocene and upper Eocene)—Massive to rarely laminated, light-gray tuffaceous siltstone and very fine-grained sandstone with minor fine grained arkosic sandstone, thin burrowed, white to very light gray tuff beds and calcareous concretions. Thick, cliff-forming unit. Some asymmetrical rippled horizons indicating wave action. Commonly thoroughly bioturbated, including large Thalassinoides and rinconela burrows. Contains wood fragments and disseminated organic matter, carbonaceous and pumiceous. Locally fossiliferous beds include mollusks and gastropods. Fossils indicate shallow marine environment (Moore, 1976). Unit is up to 200 m thick Enumerated_Domain: Enumerated_Domain_Value: Tpp Enumerated_Domain_Value_Definition: Pittsburg Bluff Formation, Pebble Creek member of Niem and others (1992) (upper Eocene)—Fine- to coarse-grained, yellow to orange-brown, micaceous, arkosic sandstone, commonly trough to planar crossbedded, contains common mud rip-up clasts, channelized deposits. Sandstone is micaceous, quartz and feldspar rich, and locally pebbly. Unit is 0 to 40 m thick Enumerated_Domain: Enumerated_Domain_Value: Tk Enumerated_Domain_Value_Definition: Keasey Formation (upper Eocene)—Massive to rarely laminated, bioturbated, light gray to white tuffaceous siltstone, claystone, and fine-grained sandstone with minor thin (<10cm) arkosic beds and white tuff beds, commonly bioturbated with some burrows filled with coarser-grained sandstone, common spheroidal calcareous concretions. Locally fossliferous containing dominantly mollusks (usually in the form of casts & molds), gastropods, scaphopods. Dominantly deep marine environment based on fossils (McDougal, 1975) Enumerated_Domain: Enumerated_Domain_Value: Tidb Enumerated_Domain_Value_Definition: Diabase (middle Eocene)—Aphyric to plagioclase-phyric, amygdaloidal diabase with smectite clays and zeolite vesicle fillings; locally pillowform with radial columnar joints, more commonly tabular bodies with well-developed columnar joints and a layered appearance. Sills are cut by the regional dike swarm that fed overlying Tillamook Volcanics but intrude strata as young as Yamhill Formation, suggesting a minimum age of about 43 Ma; unit may include some basalt and diabase correlative with the Tillamook Volcanics (unit description from Wells and others, 1995). Inferred from adjacent mapping Attribute: Attribute_Label: Style 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_55_99 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: BuxtonStrucPoints 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: Stype Attribute_Definition: Geologic Bedding Description Attribute_Definition_Source: Authors Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: bedding Enumerated_Domain_Value_Definition: Strike and dip of beds Attribute: Attribute_Label: Strike Attribute_Definition: Strike of beds Attribute: Attribute_Label: Dip Attribute_Definition: Dip of beds Attribute: Attribute_Label: Dip_Direction Attribute_Definition: Direction of dip of beds Attribute: Attribute_Label: SAMPID Attribute_Definition: Sample Identification Attribute: Attribute_Label: STAID Attribute_Definition: Station Identification Detailed_Description: Entity_Type: Entity_Type_Label: Anno_45_48 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: BuxtonCrossSectionLines 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: Linetype Attribute_Definition: cross section Attribute: Attribute_Label: XSecName Attribute_Definition: Label for cross section, A or B value 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. Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: BuxtonChemistryPoints 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: SampleID Attribute_Definition: Sample number used in field collection Attribute_Definition_Source: Author Attribute: Attribute_Label: Collector Attribute_Definition: Geologist name who collected chemistry sample Attribute_Definition_Source: Author Attribute: Attribute_Label: Quad24K Attribute_Definition: USGS Topographic Quadrangle name (Buxton) Attribute_Definition_Source: Author Attribute: Attribute_Label: UnitGroup Attribute_Definition: Geologic unit group sample is located within Attribute_Definition_Source: Author Attribute: Attribute_Label: Formation Attribute_Definition: Geologic formation (unit) sample is located within Attribute_Definition_Source: Author Attribute: Attribute_Label: FlowUnit Attribute_Definition: Geologic basaltic flow unit sample is located within Attribute_Definition_Source: Author Attribute: Attribute_Label: SampleYear Attribute_Definition: Year sample was collected Attribute_Definition_Source: Author Attribute: Attribute_Label: SiO2_Un Attribute_Definition: Silicon concentration expressed as weight percent oxide, unnormalized Attribute_Definition_Source: Author Attribute: Attribute_Label: TiO2_Un Attribute_Definition: Titanium concentration expressed as weight percent oxide, unnormalized Attribute_Definition_Source: Author Attribute: Attribute_Label: Al2O3_Un Attribute_Definition: Aluminum concentration expressed as weight percent oxide, unnormalized Attribute_Definition_Source: Author Attribute: Attribute_Label: FeO_Un Attribute_Definition: Ferrous iron concentration expressed as weight percent oxide, unnormalized Attribute_Definition_Source: Author Attribute: Attribute_Label: MnO_Un Attribute_Definition: Manganese concentration expressed as weight percent oxide, unnormalized Attribute_Definition_Source: Author Attribute: Attribute_Label: MgO_Un Attribute_Definition: Magnesium concentration expressed as weight percent oxide, unnormalized Attribute_Definition_Source: Author Attribute: Attribute_Label: CaO_Un Attribute_Definition: Calcium concentration expressed as weight percent oxide, unnormalized Attribute_Definition_Source: Author Attribute: Attribute_Label: Na2O_Un Attribute_Definition: Sodium concentration expressed as weight percent oxide, unnormalized Attribute_Definition_Source: Author Attribute: Attribute_Label: K2O_Un Attribute_Definition: Potassium concentration expressed as weight percent oxide, unnormalized Attribute_Definition_Source: Author Attribute: Attribute_Label: P2O5_Un Attribute_Definition: Phosphorus concentration expressed as weight percent oxide, unnormalized Attribute_Definition_Source: Author Attribute: Attribute_Label: Total_Un Attribute_Definition: Total of weight percent, unnormalized Attribute_Definition_Source: Author Attribute: Attribute_Label: SiO2_N Attribute_Definition: Silicon expressed as weight percent oxide from analysis recalculated volatile-free Attribute_Definition_Source: Author Attribute: Attribute_Label: TiO2_N Attribute_Definition: Titanium expressed as weight percent oxide from analysis recalculated volatile-free Attribute_Definition_Source: Author Attribute: Attribute_Label: Al2O3_N Attribute_Definition: Aluminum expressed as weight percent oxide from analysis recalculated volatile-free Attribute_Definition_Source: Author Attribute: Attribute_Label: FeO_N Attribute_Definition: Ferrous Iron expressed as weight percent oxide from analysis recalculated volatile-free Attribute_Definition_Source: Author Attribute: Attribute_Label: MnO_N Attribute_Definition: Manganese expressed as weight percent oxide from analysis recalculated volatile-free Attribute_Definition_Source: Author Attribute: Attribute_Label: MgO_N Attribute_Definition: Magnesium expressed as weight percent oxide from analysis recalculated volatile-free Attribute_Definition_Source: Author Attribute: Attribute_Label: CaO_N Attribute_Definition: Calcium expressed as weight percent oxide from analysis recalculated volatile-free Attribute_Definition_Source: Author Attribute: Attribute_Label: Na2O_N Attribute_Definition: Sodium expressed as weight percent oxide from analysis recalculated volatile-free Attribute_Definition_Source: Author Attribute: Attribute_Label: K2O_N Attribute_Definition: Potassium expressed as weight percent oxide from analysis recalculated volatile-free Attribute_Definition_Source: Author Attribute: Attribute_Label: P2O5_N Attribute_Definition: Phosphorus expressed as weight percent oxide from analysis recalculated volatile-free Attribute_Definition_Source: Author Attribute: Attribute_Label: Ni Attribute_Definition: Nickel concentration in parts per million Attribute_Definition_Source: Author Attribute: Attribute_Label: Cr Attribute_Definition: Chromium concentration in parts per million Attribute_Definition_Source: Author Attribute: Attribute_Label: Sc Attribute_Definition: Scandium concentration in parts per million Attribute_Definition_Source: Author Attribute: Attribute_Label: V Attribute_Definition: Vanadium concentration in parts per million Attribute_Definition_Source: Author Attribute: Attribute_Label: Ba Attribute_Definition: Barium concentration in parts per million Attribute_Definition_Source: Author Attribute: Attribute_Label: Rb Attribute_Definition: Rubidium concentration in parts per million Attribute_Definition_Source: Author Attribute: Attribute_Label: Sr Attribute_Definition: Strontium concentration in parts per million Attribute_Definition_Source: Author Attribute: Attribute_Label: Zr Attribute_Definition: Zirconium concentration in parts per million Attribute_Definition_Source: Author Attribute: Attribute_Label: Y Attribute_Definition: Yttrium concentration in parts per million Attribute_Definition_Source: Author Attribute: Attribute_Label: Nb Attribute_Definition: Niobium concentration in parts per million Attribute_Definition_Source: Author Attribute: Attribute_Label: Ga Attribute_Definition: Gallium concentration in parts per million Attribute_Definition_Source: Author Attribute: Attribute_Label: Cu Attribute_Definition: Copper concentration in parts per million Attribute_Definition_Source: Author Attribute: Attribute_Label: Zn Attribute_Definition: Zinc concentration in parts per million Attribute_Definition_Source: Author Attribute: Attribute_Label: Pb Attribute_Definition: Lead concentration in parts per million Attribute_Definition_Source: Author Attribute: Attribute_Label: La Attribute_Definition: Lanthanum concentration in parts per million Attribute_Definition_Source: Author Attribute: Attribute_Label: Ce Attribute_Definition: Cerium concentration in parts per million Attribute_Definition_Source: Author Attribute: Attribute_Label: Th Attribute_Definition: Thorium concentration in parts per million Attribute_Definition_Source: Author Attribute: Attribute_Label: PaleomagID Attribute_Definition: Paleomagnetic station number Attribute_Definition_Source: Author Attribute: Attribute_Label: AnalysisType Attribute_Definition: Type of Analysis Attribute_Definition_Source: Author Attribute: Attribute_Label: StationID Attribute_Definition: Station number Attribute_Definition_Source: Author Attribute: Attribute_Label: MapNumber Attribute_Definition: Number for map labelling Attribute_Definition_Source: Author Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: BuxtonStrucPointsAnno 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: SymbolID Attribute: Attribute_Label: Status Attribute: Attribute_Label: TextString Attribute: Attribute_Label: FontName Attribute: Attribute_Label: FontSize Attribute: Attribute_Label: Bold Attribute: Attribute_Label: Italic Attribute: Attribute_Label: Underline Attribute: Attribute_Label: VerticalAlignment Attribute: Attribute_Label: HorizontalAlignment Attribute: Attribute_Label: XOffset Attribute: Attribute_Label: YOffset Attribute: Attribute_Label: Angle Attribute: Attribute_Label: FontLeading Attribute: Attribute_Label: WordSpacing Attribute: Attribute_Label: CharacterWidth Attribute: Attribute_Label: CharacterSpacing Attribute: Attribute_Label: FlipAngle Attribute: Attribute_Label: Override 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_45_48 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: BuxtonGeologyPolysAnno 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: SymbolID Attribute: Attribute_Label: Status Attribute: Attribute_Label: TextString Attribute: Attribute_Label: FontName Attribute: Attribute_Label: FontSize Attribute: Attribute_Label: Bold Attribute: Attribute_Label: Italic Attribute: Attribute_Label: Underline Attribute: Attribute_Label: VerticalAlignment Attribute: Attribute_Label: HorizontalAlignment Attribute: Attribute_Label: XOffset Attribute: Attribute_Label: YOffset Attribute: Attribute_Label: Angle Attribute: Attribute_Label: FontLeading Attribute: Attribute_Label: WordSpacing Attribute: Attribute_Label: CharacterWidth Attribute: Attribute_Label: CharacterSpacing Attribute: Attribute_Label: FlipAngle Attribute: Attribute_Label: Override 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_55_99 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: BuxtonChemistryPointsAnno 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: SymbolID Attribute: Attribute_Label: Status Attribute: Attribute_Label: TextString Attribute: Attribute_Label: FontName Attribute: Attribute_Label: FontSize Attribute: Attribute_Label: Bold Attribute: Attribute_Label: Italic Attribute: Attribute_Label: Underline Attribute: Attribute_Label: VerticalAlignment Attribute: Attribute_Label: HorizontalAlignment Attribute: Attribute_Label: XOffset Attribute: Attribute_Label: YOffset Attribute: Attribute_Label: Angle Attribute: Attribute_Label: FontLeading Attribute: Attribute_Label: WordSpacing Attribute: Attribute_Label: CharacterWidth Attribute: Attribute_Label: CharacterSpacing Attribute: Attribute_Label: FlipAngle Attribute: Attribute_Label: Override 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_107_108 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: Anno_55_99 Detailed_Description: Entity_Type: Entity_Type_Label: BuxtonGeologyPolys Detailed_Description: Entity_Type: Entity_Type_Label: BuxtonGeologyPolysAnno Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: Anno_45_48 Detailed_Description: Entity_Type: Entity_Type_Label: BuxtonStrucPoints Detailed_Description: Entity_Type: Entity_Type_Label: BuxtonStrucPointsAnno Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: Anno_107_108 Detailed_Description: Entity_Type: Entity_Type_Label: BuxtonChemistryPoints Detailed_Description: Entity_Type: Entity_Type_Label: BuxtonChemistryPointsAnno Entity_and_Attribute_Information: Detailed_Description: Title: Buxton Topographic Map.tif Geospatial_Data_Presentation_Form: remote-sensing image Online_Linkage: Buxton Topographic Map.tif Description: Abstract: 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 Buxton 7.5' quadrangle (1992), which has a 40-foot contour interval. The image inside the map neatline is georeferenced to the Universal Transverse Mercator projection, zone 10, NAD 27. 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. Purpose: Base material for geology map Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2009 Currentness_Reference: publication date Status: Progress: Complete Maintenance_and_Update_Frequency: As needed Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -123.251785 East_Bounding_Coordinate: -123.120681 North_Bounding_Coordinate: 45.750047 South_Bounding_Coordinate: 45.624629 Keywords: Theme: Theme_Keyword_Thesaurus: DRG Theme_Keyword: DRG Access_Constraints: none Use_Constraints: none Native_Data_Set_Environment: Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcCatalog 9.2.6.1500 Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Raster Raster_Object_Information: Raster_Object_Type: Pixel Row_Count: 4032 Column_Count: 6709 Vertical_Count: 1 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: row and column Coordinate_Representation: Abscissa_Resolution: 2.438400 Ordinate_Resolution: 2.438400 Distribution_Information: Distributor: World Wide Web – U.S. Geological Survey (USGS) Contact_Information: Contact_Organization_Primary: Contact_Organization: USGS online publications Contact_Address: Address_Type: Address: City: State_or_Province: Postal_Code: Country: Contact_Voice_Telephone: Contact_Voice_Telephone: Contact_Facsimile_Telephone: Contact_Electronic_Mail_Address: Resource_Description: Downloadable Data USGS Scientific Open-File Report 2009-1186 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_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://pubs.usgs.gov/of/2009/1186 Fees: free Metadata_Reference_Information: Metadata_Date: 20090730 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Pacific Northwest Urban Corridor Mapping Project Contact_Person: Karen Wheeler Contact_Address: Address_Type: mailing and physical 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 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=