Metadata: Identification_Information: Citation: Citation_Information: Originator: R.W. Tabor Originator: R.B. Waitt Originator: V.A. Frizzell, Jr. Originator: D.A. Swanson Originator: G.R. Byerly Originator: G.R. Bently Publication_Date: 1982 (paper copy); 2005 (digital database) Title: Geologic map of the Wenatchee 1:100,000 Quadrangle, Central Washington: A Digital Database Edition: 1.0 Geospatial_Data_Presentation_Form: vector digital data Series_Information: Series_Name: U.S. Geological Data Series Issue_Identification: 137 Publication_Information: Publication_Place: Menlo Park, CA Publisher: U.S. Geological Survey Online_Linkage: http://pubs.usgs.gov/ds/137/ Description: Abstract: This digital map database has been prepared by R.W. Tabor from the published Geologic map of the Wenatchee 1:100,000 Quadrangle, Central Washington. Together with the accompanying text files as PDF, it provides information on the geologic structure and stratigraphy of the area covered. The database delineates map units that are identified by general age and lithology following the stratigraphic nomenclature of the U.S. Geological Survey. The authors mapped most of the bedrock geology at 1:100,000 scale, but compiled Quaternary units at 1:24,000 scale. The Quaternary contacts and structural data have been much simplified for the 1:100,000-scale map and database. The spatial resolution (scale) of the database is 1:100,000 or smaller. Purpose: This database depicts the distribution of geologic materials and structures at a regional (1:100,000) 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 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- The United States Forest Service, Wenatchee Washington and/or their contractors scanned and vectorized the geologic map information from photographic reproduction of the printing negative, originally drafted from a stable ink-on-mylar author compilation at 1:100,000 scale. ARC/INFO vectorized coverage of the geology was later edited by R.W. Tabor to produce an coverage complete with faults etc. R.W. Tabor hand-digitized structural and additional coverage data from scanned and georeferenced paper copy of the published map. The digital compilation was done in versions 7.1.1 through 8.2 of ARC/INFO with version 3.0 of the menu interface ALACARTE (Fitzgibbon and Wentworth, 1991, Fitzgibbon, 1991, Wentworth and Fitzgibbon, 1991). BASE MAP-The geology of this dataset was mapped on dimensionally stable chronflex prints of the Wenatchee 1:100,000 scale topographic quadrangle. Although no base map material is included in this dataset, a vectorized version of the base can be downloaded from http://edcftp.cr.usgs.gov/pub/data/DLG/100K/W/. Registration of the DLG and some coverages in this dataset may not be a good as on the original published map due to instability of scanned paper copy. 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 for a scale of 1:100,000 means that higher resolution information is not present in the dataset. Plotting at scales larger than 1:100,000 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: 1982 (paper); 2005 (digital database) Currentness_Reference: 1982 Status: Progress: Complete Maintenance_and_Update_Frequency: As needed Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -121.018729 East_Bounding_Coordinate: -119.971650 North_Bounding_Coordinate: 47.521801 South_Bounding_Coordinate: 46.978186 Keywords: Theme: Theme_Keyword_Thesaurus: none Theme_Keyword: alpine glaciation Theme_Keyword: bedrock geology Theme_Keyword: Bullfrog subdrift Theme_Keyword: Camus Land Diabase of Southwick (1966) Theme_Keyword: Catastrophic flood deposits Theme_Keyword: Chumstick Formation Theme_Keyword: Columbia River Basalt Group Theme_Keyword: Darrington Phyllite Theme_Keyword: Domerie subdrift Theme_Keyword: Easton Schist of Smith (1904) Theme_Keyword: Ellensburg Formation Theme_Keyword: fault offset Theme_Keyword: geologic history Theme_Keyword: geologic structures Theme_Keyword: geology Theme_Keyword: Grande Ronde Basalt Theme_Keyword: Hornblende andesite porphyry complex of Horse Lake Mountsain Theme_Keyword: Hyak subdrift Theme_Keyword: Indian John subdrift Theme_Keyword: Ingalls Tectonic Complex Theme_Keyword: invasive flows Theme_Keyword: Kittitas Drift Theme_Keyword: Lakedale Drift Theme_Keyword: landslide deposits Theme_Keyword: Lookout Mountain Ranch Drift Theme_Keyword: Manastash Formation Theme_Keyword: metamorphism Theme_Keyword: Mount Stuart batholith Theme_Keyword: North Cascades Theme_Keyword: rock samples Theme_Keyword: Ronald subdrift Theme_Keyword: Roslyn Formation Theme_Keyword: Shuksan Greenschist Theme_Keyword: Shuksan Metamorphic Suite Theme_Keyword: Silver Pass Volcanic Rocks of Foster (1960) Theme_Keyword: surficial geology Theme_Keyword: Swauk Formation Theme_Keyword: Swauk Prarie subdrift Theme_Keyword: Taneum Andesite Theme_Keyword: Basalt of Frost Mountain Theme_Keyword: Teanaway Basalt Theme_Keyword: Thorp Gravel Theme_Keyword: Thorp Gravel Theme_Keyword: Wanapum Basalt Theme_Keyword: Wenatchee Formation Place: Place_Keyword_Thesaurus: none Place_Keyword: Pacific Northwest Place_Keyword: North Cascade Mountains Place_Keyword: Wenatchee Place_Keyword: Washington Place: Place_Keyword_Thesaurus: Augmented FIPS 10-4 and FIPS 6-4, version 1.0 Place_Keyword: Chelan County Place_Keyword: Kittitas County Place_Keyword: Douglas County Place_Keyword: Grant County Access_Constraints: none Native_Data_Set_Environment: UNIX Sun Solaris; ESRI ArcInfo 8.1 Spatial_Data_Organization_Information: wengeology is contact, fault, and polygon coverage; wenlinfeature is morainal crests, fold axes, cross section line coverage, mapped Basalt of Rocky Point (Tgrp, too thin to show actual thickness), and ironstone formation (Tsir, too thin to show actual thickness); wenpoints is locations of age samples and Columbia River Basalt Group flow direction: wenpattern is area of dike swarm of andesite of Horse Lake Mountain, area of hornblende feldspar dacite and granodiorite dike complex (Kmsd), areas of sheared serpentinite, areas of sheared sandstone; wenteanaway is estimated areal percentages of Teantaway dikes. Original data from field observations was presented on published map as dots at different densities. For this: coverage, percentages were estimated from dot pattern: wenstructure is bedding, foliation, and lineation: wenrocksamp2 is point coverage of rock samples archived at North Cascades National Park, Marblemount. For more information about the rock samples contact the curator at Marblemount, telephone 360 873 4500 Spatial_Data_Organization_Information: wengeology Direct_Spatial_Reference_Method: Vector Point_and_Vector_Object_Information: SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: Complete chain Point_and_Vector_Object_Count: 5930 SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: Label point Point_and_Vector_Object_Count: 2307 SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains Point_and_Vector_Object_Count: 2306 SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: Point Point_and_Vector_Object_Count: 45 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Map_Projection: Map_Projection_Name: Transverse Mercator 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: 0.000128 Ordinate_Resolution: 0.000128 Planar_Distance_Units: meters Geodetic_Model: Horizontal_Datum_Name: D_Clarke_1866 Ellipsoid_Name: Clarke 1866 Semi-major_Axis: 6378206.400000 Denominator_of_Flattening_Ratio: 294.978698 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: wengeology.aat Attribute: Attribute_Label: FID 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_Definition: Internal node number for the beginning of an arc (from-node). Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Whole numbers that are automatically generated. Attribute: Attribute_Label: TNODE# Attribute_Definition: Internal node number for the end of an arc (to-node). Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Whole numbers that are automatically generated. Attribute: Attribute_Label: LPOLY# Attribute_Definition: Internal node number for the left polygon. Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Whole numbers that are automatically generated. Attribute: Attribute_Label: RPOLY# Attribute_Definition: Internal node number for the right polygon. Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Whole numbers that are automatically generated. Attribute: Attribute_Label: 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: WENGEOLOGY# 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: WENGEOLOGY-ID Attribute_Definition: User-defined feature number. Attribute_Definition_Source: ESRI 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 established in reconnaissance mapping by authors or compiled from other workers Enumerated_Domain: Enumerated_Domain_Value: contact, concealed Enumerated_Domain_Value_Definition: Boundary between geologic units that is concealed by a younger unit or indicating contact of coherent unit in landslide Enumerated_Domain: Enumerated_Domain_Value: contact, inferred Enumerated_Domain_Value_Definition: Boundary of uncertain location between geologic units; contact exists but location inferred from indirect evidence Enumerated_Domain: Enumerated_Domain_Value: contact, scratch Enumerated_Domain_Value_Definition: Boundary between geologic units that is indefinate or gradational Enumerated_Domain: Enumerated_Domain_Value: normal fault, certain Enumerated_Domain_Value_Definition: Trace of fault established in reconnaissance mapping by authors or compiled from other workers Enumerated_Domain: Enumerated_Domain_Value: normal fault, inferred Enumerated_Domain_Value_Definition Uncertain location of fault; positional accuracy uncertain but but general location inferred from indirect evidence Enumerated_Domain: Enumerated_Domain_Value: normal fault, concealed Enumerated_Domain_Value_Definition: Trace of fault concealed by younger unit positional accuracy uncertain Enumerated_Domain: Enumerated_Domain_Value: thrust fault, certain Enumerated_Domain_Value_Definition: Trace of fault established in reconnaissance mapping by authors or compiled from other workers Enumerated_Domain: Enumerated_Domain_Value: thrust fault, concealed Enumerated_Domain_Value_Definition: Trace of thrust fault concealed by younger unit; positional accuracy uncertain Enumerated_Domain: Enumerated_Domain_Value: map boundary Enumerated_Domain_Value_Definition: map boundary of this 1:100,000 study Enumerated_Domain: Enumerated_Domain_Value: glacier boundary Enumerated_Domain_Value_Definition: Boundary of glacier derived from Wenatchee 1:100,000 scale topographic map Enumerated_Domain: Enumerated_Domain_Value: water boundary Enumerated_Domain_Value_Definition: Boundary of open water derived from Wenatchee 1:100,000 scale topographic map Enumerated_Domain: Enumerated_Domain_Value: vol. ash, Tcte Enumerated_Domain_Value_Definition: Eastern sequence (Chiwaukum graben). CHUMSTICK FORMATION. Tuff of Eagle CreekÑ Coarse-grained light-greenish-gray tuff with pumice clasts and flakes of carbonized wood; equals Tt1 of Whetten and Laravie (1976). Tuff in upper East Fork of Mission Creek correlated on basis of lithology Enumerated_Domain: Enumerated_Domain_Value: vol. ash, Tctcb Enumerated_Domain_Value_Definition: Eastern sequence (Chiwaukum graben). CHUMSTICK FORMATION. Tuff of Cashmere (b)Ñ Coarse-grained dense pumiceous vitric tuff. Thickness variable to 3 m. Continuous with tuff (Tt2) in Cashmere quadrangle (Whetten and Waitt, 1978) Enumerated_Domain: Enumerated_Domain_Value: vol. ash, Tctca Enumerated_Domain_Value_Definition: Eastern sequence (Chiwaukum graben). CHUMSTICK FORMATION. Tuff of Cashmere (a)Ñ Dense fine-grained, crystal vitric tuff, 2-4 m thick. Continuous with tuff (Tt1) in Cashmere quadrangle (Whetten and Waitt, 1978) Entity_Type: Entity_Type_Label: wengeology.pat Attribute: Attribute_Label: FID 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_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: PERIMETER Attribute_Definition: Perimeter of feature in internal units. Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Positive real numbers that are automatically generated. Attribute: Attribute_Label: WENGEOLOGY# 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: WENGEOLOGY-ID Attribute_Definition: User-defined feature number. Attribute_Definition_Source: ESRI Attribute: Attribute_Label: PTYPE Attribute_Definition: symbol of geologic unit Attribute_Definition_Source: Author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Qls Enumerated_Domain_Value_Definition: All drainage basins. LANDSLIDE DEPOSITS, UNDIFFERENTIATEDÑPoorly sorted deposits ranging from muddy boulder gravel to bouldery mud; clasts are angular and of only one or two local rock types; most slides have hummocky surfaces, bulbous toes, and moats at the head and margins; smaller slides generally head at theater-shaped scars; some large slides merge headward with block slides (Qlsb). Small slides designated by arrows only, showing direction of movement Enumerated_Domain: Enumerated_Domain_Value: Qlsb Enumerated_Domain_Value_Definition: All drainage basins . LANDSLIDE OF LARGE BLOCKSÑMainly large intact blocks whose original internal stratigraphy is partly to wholly preserved (where mapped, internal stratigraphy designated in parentheses); slides occur mainly as the headward parts of large landslides derived from regional escarpment of the Yakima Basalt Subgroup; large incipient slide near Mission Peak includes nonrotated blocks, of which the largest, essentially in place, measures 2000 x 1000 x 150 m. Elsewhere blockslides are of older rock units Enumerated_Domain: Enumerated_Domain_Value: mf Enumerated_Domain_Value_Definition: All drainage basins. MANMADE FILL AND MODIFIED LAND Enumerated_Domain: Enumerated_Domain_Value: Qs Enumerated_Domain_Value_Definition: All drainage basins. SIDESTREAM ALLUVIUMÑModerately sorted boulder-to-pebble gravel of the few rock types that crop out in relatively small drainage basins Enumerated_Domain: Enumerated_Domain_Value: Qf Enumerated_Domain_Value_Definition: All drainage basins. ALLUVIUM OF FANSÑPoorly sorted boulder gravel to gravelly sand; subangular gravel clasts are generally of one or two rock types; forms fans of distinctly steeper gradient than floor of sidestream or trunk-stream valleys but in many places merging gradationally with deposits mapped as Qs, Qy, Qp, Qc, and Qw Enumerated_Domain: Enumerated_Domain_Value: Qy Enumerated_Domain_Value_Definition: Yakima and Peshastin drainage basins. ALLUVIUM OF YAKIMA RIVERÑBoulder to pebble gravel containing rounded stones: largely of volcanic and dike rocks, moderately of metamorphic and sedimentary rocks, and sparsely of intrusive rocks. No weathering or soil Enumerated_Domain: Enumerated_Domain_Value: Qp Enumerated_Domain_Value_Definition: Yakima and Peshastin drainage basins. ALLUVIUM OF PESHASTIN CREEKÑSubrounded cobble to boulder gravel of many rock types but dominantly amphibolite (KJia) and quartz diorite (Kmsq). No soil Enumerated_Domain: Enumerated_Domain_Value: Qlht Enumerated_Domain_Value_Definition: Yakima and Peshastin drainage basins. LAKEDALE DRIFT. Hyak subdrift, tillÑDiamicton of angular to subrounded clasts in muddy sand matrix forming moraines and drift blanket near heads of valleys; clasts consist of several rock types; A-C soil about 0.75 m thick Enumerated_Domain: Enumerated_Domain_Value: Qldm Enumerated_Domain_Value_Definition: Yakima and Peshastin drainage basins. LAKEDALE DRIFT. Domerie subdrift, mainstream outwashÑGravel lithologically like Qy but forming terrace about 5 m above Yakima River near Cle Elum that grades upstream to moraines 9 to 30 km beyond western map boundary. A-C soil about 1 m thick Enumerated_Domain: Enumerated_Domain_Value: Qlrm Enumerated_Domain_Value_Definition: Yakima and Peshastin drainage basins. LAKEDALE DRIFT. Ronald subdrift, mainstream outwashÑCobble gravel lithologically similar to Qy but forming terrace near western map boundary lower than Bullfrog outwash surface (Qtbm) and roughly 12 m above modern Yakima flood plain. Grades upvalley to moraine 5 km beyond western boundary of map Enumerated_Domain: Enumerated_Domain_Value: Qlbt Enumerated_Domain_Value_Definition: Yakima and Peshastin drainage basins. LAKEDALE DRIFT. Bullfrog subdrift. TillÑPoorly sorted muddy boulder diamicton forming moraine atop Lakedale terrace in Yakima River valley at western boundary of map; in Peshastin Creek valley, forms flat-topped mass at mouth of Ingalls Creek and crested moraines immediately downvalley; lithology of clasts similar to Qy or Qp; weak A-C soil. In upper Naneum Canyon, consists of angular clasts of Grande Ronde Basalt, a few of them vaguely striated; forms paired nested moraines in headwaters of Naneum Creek Enumerated_Domain: Enumerated_Domain_Value: Qlbm Enumerated_Domain_Value_Definition: Yakima and Peshastin drainage basins. LAKEDALE DRIFT. Bullfrog subdrift. Mainstream alluviumÑMixed-lithology cobble gravel forming distinct terrace 50 m above Yakima River at upstream (western) map boundary, grading downvalley to 18 m above the river at southern map boundary; material identical to Qy but includes discontinuous mantle of loess as thick as 0.5 m and supports soil no thicker than 130 cm, no redder than 7.5 YR, and lacking an argillic B-horizon; grades from moraines (Qlbt) at western boundary of map. In Peshastin drainage, forms moraine lithologically like Qp and graded to QJbt Enumerated_Domain: Enumerated_Domain_Value: Qlbs Enumerated_Domain_Value_Definition: Yakima and Peshastin drainage basins. LAKEDALE DRIFT. Bullfrog subdrift. Sidestream alluviumÑLithologically and texturally similar to Qs but supports a weak soil; forms terraces 10 to 20 m above Holocene surfaces in Kittitas Valley along Yakima River and 4 to 7 m above floor of Dry Creek valley Enumerated_Domain: Enumerated_Domain_Value: Qlbg Enumerated_Domain_Value_Definition: Yakima and Peshastin drainage basins. LAKEDALE DRIFT. Bullfrog subdrift. Undifferentiated gravelÑLakedale terrace near Ellensburg containing both mainstream and sidestream gravel Enumerated_Domain: Enumerated_Domain_Value: Qkit Enumerated_Domain_Value_Definition: Yakima and Peshastin drainage basins. KITTITAS DRIFT. Indian John subdrift. TillÑ Boulder diamicton lithologically similar to Qlbt forming ill-defined moraine at Indian John Hill on southern side of Yakima Valley and distinct left-lateral moraine on the southern slope of Cle Elum Ridge Enumerated_Domain: Enumerated_Domain_Value: Qkim Enumerated_Domain_Value_Definition: Yakima and Peshastin drainage basins. KITTITAS DRIFT. Indian John subdrift. Mainstream outwashÑBoulder-to-cobble gravel forming prominent 85-m-high terrace heading at Indian John moraine; occurs discontinuously in Yakima canyon south of Lookout Mountain and as nearly continuous terrace 50 to 25 m above the modern flood plain along southern side of Kittitas Valley; lithologically similar to Qy but contains distinctly weathered stones and locally is mantled with loess as thick as 1.5 m soil contains a textural B-horizon as thick as 2.5 m and as red as 5 YR Enumerated_Domain: Enumerated_Domain_Value: Qkis Enumerated_Domain_Value_Definition: Yakima and Peshastin drainage basins. KITTITAS DRIFT. Indian John subdrift. Sidestream alluviumÑIn Kittitas Valley basaltic gravel similar to Qs, forming distinct terrace on northern side of Yakima River paired to mainstream outwash (Qkim) south of river. Continuously traceable up Dry Creek and Green Canyon Creek valleys; terrace is best topographic reference for correlation of sidestream terraces in northern Kittitas Valley; apparently correlative terraces in upper Teanaway River valley are 10 to 12 m above modern flood plain Enumerated_Domain: Enumerated_Domain_Value: Qkil Enumerated_Domain_Value_Definition: Yakima and Peshastin drainage basins. KITTITAS DRIFT. Indian John subdrift. Lacustrine depositsÑAlong irrigation ditch in lower Teanaway valley, thin-bedded silt and clay containing faceted ice-rafted stones as large as 20 cm; in Yakima River valley near Teanaway River confluence, an almost horizontal terrace of sand and gravel at altitude 640 m; graded to conspicuous outwash terrace (Qkim) immediately downstream. As mapped, includes sidestream alluvial and deltaic debris similar to Qkis Enumerated_Domain: Enumerated_Domain_Value: Qksly Enumerated_Domain_Value_Definition: Yakima and Peshastin drainage basins. KITTITAS DRIFT. Swauk Prairie subdrift. Younger lacustrine depositÑPoorly exposed deposit 85 m above Teanaway River on eastern end of Cle Elum Ridge of thin-bedded sand, silt, and clay containing dropstones as large as 4 cm Enumerated_Domain: Enumerated_Domain_Value: Qkst Enumerated_Domain_Value_Definition: Yakima and Peshastin drainage basins. KITTITAS DRIFT. Swauk Prairie subdrift. TillÑ Boulder diamicton of same diverse rock types as Qy; forms massive morainal embankments at Thorp and Swauk Prairies and distinct nested moraines in saddle on Lookout Mountain; at Swauk Prairie is capped by as much as 3m of loess that includes a buried paleosol having a 2.8-m-thick textural B-horizon as red as 5 YR; at Thorp Prairie is only thinly and discontinuously capped by loess. Roadcuts briefly exposed in 1977 on eastern slope of Swauk Prairie revealed two layers of till separated by nonglacial sand and mud Enumerated_Domain: Enumerated_Domain_Value: Qksm Enumerated_Domain_Value_Definition: Yakima and Peshastin drainage basins. KITTITAS DRIFT. Swauk Prairie subdrift. Mainstream outwashÑGravel similar to Qy forming distinct terrace along southern side of Yakima River; terrace grades downvalley from 100 m above river at Thorp Prairie moraine to 40 m above river at southern boundary of map Enumerated_Domain: Enumerated_Domain_Value: Qkss Enumerated_Domain_Value_Definition: Yakima and Peshastin drainage basins. KITTITAS DRIFT. Swauk Prairie subdrift. Sidestream alluviumÑIn northern Kittitas Valley, basaltic gravel forming terraces intermediate in height between Indian John (Qkis) and Thorp (Tts) sidestream terraces; sand, gravelly sand, and sandy gravel form broad terraces about 35 m above floor of each fork of the Teanaway River Enumerated_Domain: Enumerated_Domain_Value: Qkslo Enumerated_Domain_Value_Definition: Yakima and Peshastin drainage basins. KITTITAS DRIFT. Swauk Prairie subdrift. Older lacustrine faciesÑ2-m bed of thin-bedded, light-gray to grayish-blue clay and interbedded silt; clay contains rare dropstones of coarse sand and granules; overlies older till; underlies 3-m bed grading upward from very fine sand to coarse sand that in turn underlies till (Qkst) forming Swauk Prairie. Causes landsliding in new roadcuts on outer slope of the Swauk Prairie moraine Enumerated_Domain: Enumerated_Domain_Value: Qkt Enumerated_Domain_Value_Definition: Yakima and Peshastin drainage basins. KITTITAS DRIFT, UNDIFFERENTIATED. TillÑTill forming lateral moraines in upper Naneum Canyon outside Qlbt moraines; composed of unsorted angular to subrounded clasts of Grande Ronde Basalt inconspicuously striated and faceted; surface soil in places shows an argillic B-horizon.Similar deposits lithologically like Qp form moraines on both sides of Peshastin Creek valley and in lower Hansel Creek Enumerated_Domain: Enumerated_Domain_Value: Qks Enumerated_Domain_Value_Definition: Yakima and Peshastin drainage basins. KITTITAS DRIFT, UNDIFFERENTIATED. Sidestream gravelÑIn Kittitas Valley, terrace gravel of clasts of Grande Ronde Basalt; forms terrace above Lakedale and Holocene sidestream surfaces but below level of Thorp sidestream surfaces. In Peshastin valley similar terrace deposits lithologically reflect the local crystalline bedrock Enumerated_Domain: Enumerated_Domain_Value: Qlm Enumerated_Domain_Value_Definition: Yakima and Peshastin drainage basins. LOOKOUT MOUNTAIN RANCH DRIFTÑDiamicton containing rounded to subangular,faceted, striated stones of diverse rock types similar to Qy; forms subdued moraines 0 to 85m above the outer Kittitas moraine (Qkst) on Lookout Mountain; Soil contains 7 YR to 5YR argillic B-horizon at least 45 cm thick; correlative moraine along western side of Horse Canyon Enumerated_Domain: Enumerated_Domain_Value: Ttm Enumerated_Domain_Value_Definition: Yakima and Peshastin drainage basins. THORP GRAVEL. Mainstream alluvium-Weakly cemented moderately sorted cobble to pebble gravel with thin interbeds of sand, silt, and tephra; gravel clasts subangular to rounded; diverse rock types dominated by durable silicic volcanic rocks evidently derived from the underlying Ellensburg Formation; forms conspicuous terrace along both sides of Yakima River in Kittitas Valley 220 to 70 m above the river, distinctly above the Qksm terrace. Soil locally has reddish argillic B-horizon as thick as 50 cm Enumerated_Domain: Enumerated_Domain_Value: Tts Enumerated_Domain_Value_Definition: Yakima and Peshastin drainage basins. THORP GRAVEL. Sidestream alluviumÑWeakly cemented, moderately sorted boulder to cobble gravel of angular to subrounded clasts of Grande Ronde Basalt; forms high terrace that slopes from northern mountain front of Kittitas Valley to the mainstream terrace (Ttm); contains minor chert, opal, vein quartz, quartzite, and durable felsites, none of which occur within modern drainage basins incised in the Thorp; surface clasts have thick rinds and deep cracks Enumerated_Domain: Enumerated_Domain_Value: Qc Enumerated_Domain_Value_Definition: Wenatchee and Columbia drainage basins. ALLUVIUM OF COLUMBIA RIVERÑGravel containing rounded clasts as large as 30 cm; widely diverse rock types, including many medium-grained granitic to gneissic rock types with color indices (CI) below 20 but only a few more mafic varieties; includes stones of Swakane Biotite Gneiss, Yakima Basalt Subgroup, many varieties of porphyritic dike rocks, quartzite, and chert-pebble conglomerate; below Rock Island greatly enhanced in clasts of basalt Enumerated_Domain: Enumerated_Domain_Value: Qw Enumerated_Domain_Value_Definition: Wenatchee and Columbia drainage basins. ALLUVIUM OF WENATCHEE RIVERÑ Cobble-to-boulder gravel containing rounded clasts of coarse medium-grained quartz diorite, grandiorite, and weakly foliated gneiss with CI>20, derived from quartz diorite of Mount Stuart batholith but contains only a few granitic rocks with CI<20; includes muscovite and biotite gneiss, dark-colored fine-grained schist, green amphibolite, hornfels, several other metamorphic rock types, and various dike rocks. In map area contains small but conspicuous component of pyroxene-and amphibole-bearing porphyry derived from Eagle Rock (north of map boundary) and small component of the Yakima Basalt Subgroup derived from landslide and debris-flow deposits upvalley (north) of map boundary Enumerated_Domain: Enumerated_Domain_Value: Qb Enumerated_Domain_Value_Definition: Wenatchee and Columbia drainage basins. BOG DEPOSITSÑMud and peat Enumerated_Domain: Enumerated_Domain_Value: Qt Enumerated_Domain_Value_Definition: Wenatchee and Columbia drainage basins. TALUS DEPOSITSÑLoose angular locally derived boulders forming steep slopes Enumerated_Domain: Enumerated_Domain_Value: Qrg Enumerated_Domain_Value_Definition: Wenatchee and Columbia drainage basins. ROCK-GLACIER DEPOSITSÑAngular locally derived boulders forming bulbous tongue Enumerated_Domain: Enumerated_Domain_Value: Qe Enumerated_Domain_Value_Definition: Wenatchee and Columbia drainage basins. EOLIAN DEPOSITSÑLoose well sorted medium sand deflated from Quaternary deposits along the Columbia River Enumerated_Domain: Enumerated_Domain_Value: Ql Enumerated_Domain_Value_Definition: Wenatchee and Columbia drainage basins. LOESSÑDeposits of wind deposited silt Enumerated_Domain: Enumerated_Domain_Value: Qlfy Enumerated_Domain_Value_Definition: Wenatchee and Columbia drainage basins. GRAVEL OF LATE FLOODS. Younger-phase depositsÑSurfaces of gravel generally less than 30 m above river, at West Bar and Malaga separated from QIfo by steep erosional scarp that truncates giant current dunes of QIfo; some bars form broad whaleback having shallow moat at inner margin; surfaces generally not ornamented with giant current dunes but densely studded with boulders to 3 m in intermediate diameter, rarely as large as 10 m; riverward slopes of several bars of Qcgl and Qlfo as high as 90 m above the river similarly boulder-studded. Not everywhere distinguishable from unit Qlfo Enumerated_Domain: Enumerated_Domain_Value: Qlfo Enumerated_Domain_Value_Definition: Wenatchee and Columbia drainage basins. GRAVEL OF LATE FLOODS. Older-phase depositsÑSurfaces marked by giant current dunes 50 to 60 m above the natural surface grade of Columbia River but below tops of sidestream delta terraces (Qsdt) unmodified by floodwater; giant current dunes spaced 100 m or less; composed of gravel similar to Qc except for rare boulders as large as 3 m; not overlain by lacustrine sediment. Not everywhere distinguished from Qcgl Enumerated_Domain: Enumerated_Domain_Value:Qlf Enumerated_Domain_Value_Definition: Wenatchee and Columbia drainage basins. GRAVEL OF LATE FLOODS. Gravel, undividedÑSurfaces geomorphically similar to those of Qlfy but altitude similar to both QIfo and QIfy Enumerated_Domain: Enumerated_Domain_Value: Qsa Enumerated_Domain_Value_Definition: Wenatchee and Columbia drainage basins. GRAVEL OF LATE FLOODS. SandÑLoose, medium to very coarse sand above level of Qlfo; probably suspended load of late flood(s) Enumerated_Domain: Enumerated_Domain_Value: Qsi Enumerated_Domain_Value_Definition: Wenatchee and Columbia drainage basins. GRAVEL OF LATE FLOODS. SiltÑThinly and evenly to rhythmically bedded silt and very fine sand, evidently polygenetic and in various stratigraphic positions: (1) overlies Qcgu and Qcgl in the Columbia River valley, (2) forms distinct terrace at altitude 275 m in canyon west of Birch Flat, (3) occurs as discontinuous patches at altitudes below 275 m in lower Wenatchee valley, and (4) overlies Qwtu near Monitor, where beds 0.3 m thick fine upward from medium sand to clay Enumerated_Domain: Enumerated_Domain_Value: Qcgl Enumerated_Domain_Value_Definition: Wenatchee and Columbia drainage basins. COLUMBIA RIVER FLOODS DEPOSITS. Gravel of lower-level barsÑSimilar to Qcgu except that surfaces of bars are only 60 to 90 m above the river and embellished with giant current dunes spaced 100 m; surficial layer of bar at mouth of Moses Coulee is redeposited Qmc; great bar north side of Columbia near Crescent Bar contains rock types derived from upvalley, but long sweeping foresets dip upvalley and material is sandy pebble gravel fining upvalley to medium sand. Loess cap thinner than 0.5 m or is absent entirely. Not exclusively distinguished from Qcgu or Qcg Enumerated_Domain: Enumerated_Domain_Value: Qcg Enumerated_Domain_Value_Definition: Wenatchee and Columbia drainage basins. COLUMBIA RIVER FLOODS DEPOSITS. Miscellaneous gravelÑSmall patches at intermediate to low altitudes, probably mostly contemporaneous with QcgI Enumerated_Domain: Enumerated_Domain_Value: Qcus Enumerated_Domain_Value_Definition: Wenatchee and Columbia drainage basins. COLUMBIA RIVER FLOODS DEPOSITS. Gravel of Moses Coulee floodsÑAlong riverwise railroad near mouth of Moses Coulee, a poorly sorted boulder gravel almost entirely of basalt and displaying foreset bedding that dips up Columbia River valley; between southern abutment of Rock Island Dam and southern abutment of railroad bridge is moderately sorted pebble to basaltic granule gravel displaying long foresets dipping gently upvalley; at Rock Island Dam, top of deposit interbedded with and overlain by silt disconformably overlain by Qcgl Enumerated_Domain: Enumerated_Domain_Value: Qmc Enumerated_Domain_Value_Definition: Wenatchee and Columbia drainage basins. COLUMBIA RIVER FLOODS DEPOSITS. Gravel of Moses Coulee floodsÑAlong riverwise railroad near mouth of Moses Coulee, a poorly sorted boulder gravel almost entirely of basalt and displaying foreset bedding that dips up Columbia River valley; between southern abutment of Rock Island Dam and southern abutment of railroad bridge is moderately sorted pebble to basaltic granule gravel displaying long foresets dipping gently upvalley; at Rock Island Dam, top of deposit interbedded with and overlain by silt disconformably overlain by Qcgl Enumerated_Domain: Enumerated_Domain_Value: Qcgu Enumerated_Domain_Value_Definition: Wenatchee and Columbia drainage basins. COLUMBIA RIVER FLOODS DEPOSITS. Gravel of upper barÑModerately sorted mixed-lithology cobble-to-boulder gravel containing rare angular boulders as large as 2 m of Swakane Biotite Gneiss and quartz diorite; internal structure is long downvalley-dipping foresets as tall as 15 m; shallow moat at valley-side margin; surface near Pangborn airfield 180 m above river level displays giant current dunes spaced 215 m and whose lee slopes face downvalley; maximum thickness of deposit 150 m or more. Mantled with 0.5 to 1.5 m of loess. Soil contains neither textural B-horizon nor K-horizon, calcification being restricted to overgrowths less than 1 mm thick on the undersides of stones Enumerated_Domain: Enumerated_Domain_Value: Qfg Enumerated_Domain_Value_Definition: Wenatchee and Columbia drainage basins. GRAVEL OF FANCHER FIELDÑ Cobble-to-granule gravel of rounded stones of diverse rock types of Columbia River provenance; generally is moderately to well sorted, lacks huge boulders characteristic of younger flood deposits but has thick crossbeds dipping downvalley; to southeast contains much sand and granule gravel; capped by 0.5 to 2 m of caliche that locally divides into multiple layers; caliche overlain by ito 3 m of loess; forms extensive terrace at altitudes 410 to 435 m, 30 to 50 m above the altitude of uncalichified gravel forming upper bars of Columbia River flood deposits (Qcgu) farther downvalley Enumerated_Domain: Enumerated_Domain_Value: Qlsy Enumerated_Domain_Value_Definition: Wenatchee and Columbia drainage basins. YOUNGER LANDSLIDE DEPOSITSÑAngular debris from Yakima Basalt Subgroup; overlies QcgI but is partly eroded by younger floods Enumerated_Domain: Enumerated_Domain_Value: Qlso Enumerated_Domain_Value_Definition: Wenatchee and Columbia drainage basins. OLDER LANDSLIDE DEPOSITSÑHummocky diamicton underlying Qlfo, Qlfy, Qsa, Qcgu, Qcgl and Qmc; upper surface of toe of slide along and in Columbia River near Malaga and Rock Island has high erosional relief; huge slide complexes on both sides of Columbia River valley between Wenatchee and Rock Island Dam are sparsely strewn up to altitude 325 m with very angular light-colored granodiorite boulders ice-rafted by great floods. Landslide complex northeast of East Wenatchee consists near mountain front of huge rotated, somewhat deformed blocks (Qlsb) of the Grande Ronde Basalt and Ellensburg Formation; to southwest is highly fractured deformed blocks and divided debris of the Grande Ronde Basalt deposited in valleys cut into Wenatchee Formation (Tw); east of river is thickly mantled with loess and eolian sand Enumerated_Domain: Enumerated_Domain_Value: Qwtl Enumerated_Domain_Value_Definition: Wenatchee and Columbia drainage basins. LOWER TERRACE GRAVEL OF WENATCHEE RIVERÑ Gravel similar to Qw but forming terrace 10 m above modern flood plain; weathering and soil development very weak Enumerated_Domain: Enumerated_Domain_Value: Qtd Enumerated_Domain_Value_Definition: Wenatchee and Columbia drainage basins. GRAVEL OF "d" TERRACEÑGravel similar to Qc but forming terrace 20 to 30 m above Columbia River; unlike flood bars, terrace is flat and lacks giant current ripples, whaleback form, and inner-margin moat; locally contains rare boulders as large as 0.8 m and grades northward into surface clearly swept by floodwater; soil lacks B-horizon Enumerated_Domain: Enumerated_Domain_Value: Qtcl Enumerated_Domain_Value_Definition: Wenatchee and Columbia drainage basins. GRAVEL OF"c" TERRACEÑSimilar to Qtd except forms two discrete terraces 45 m (QtcI) and 60 m (Qtcu) above Columbia River; in railroad cuts along southern side of Wenatchee River overlies flood gravel containing angular boulders as large as 1.4 m and displays crude foreset beds dipping up Wenatchee valley; altitudinally related to Columbia-floods bars Qcgl and Qcgu. Soil lacks B-horizon Enumerated_Domain: Enumerated_Domain_Value: Qtcu Enumerated_Domain_Value_Definition: Wenatchee and Columbia drainage basins. GRAVEL OF"c" TERRACEÑSimilar to Qtd except forms two discrete terraces 45 m (QtcI) and 60 m (Qtcu) above Columbia River; in railroad cuts along southern side of Wenatchee River overlies flood gravel containing angular boulders as large as 1.4 m and displays crude foreset beds dipping up Wenatchee valley; altitudinally related to Columbia-floods bars Qcgl and Qcgu. Soil lacks B-horizon Enumerated_Domain: Enumerated_Domain_Value: Qtb Enumerated_Domain_Value_Definition: Wenatchee and Columbia drainage basins. GRAVEL OF "b" TERRACEÑSmall patch in Columbia River valley immediately upslope from Qtc and lithologically like Qc; broader surface in lower Wenatchee valley is lithologically like Qw; Wenatchee valley terrace 70 to 80 m above rivers and separated from "c" terrace by abrupt scarp; includes 5- to 15Ñm mantle of very coarse to fine sand, apparently backwash from floods along Columbia valley. Nowhere on surface of gravel or on capping loess is soil redder than 10 YR or has textural B-horizon, nor does deposit contain a buried paleosol Enumerated_Domain: Enumerated_Domain_Value: Qsdt Enumerated_Domain_Value_Definition: Wenatchee and Columbia drainage basins. SIDESTREAM DELTA-TERRACEÑAngular to subrounded, poorly sorted gravel of clasts of Yakima Basalt Subgroup and interbedded arkosic sand; forms terraces at mouths of Rock Island, Stemilt, and Squilchuck Creeks; internal structure in Stemilt Creek body is tall foreset bedding dipping steeply toward the Columbia River; at Rock Island Creek, directly overlies Qsi Enumerated_Domain: Enumerated_Domain_Value: Qst Enumerated_Domain_Value_Definition: Wenatchee and Columbia drainage basins. SIDESTREAM TERRACE ALLUVIUMÑTerrace of basaltic gravel, sand, and mud 5 to 7 m above floors of Squilchuck Creek and lower Moses Coulee Enumerated_Domain: Enumerated_Domain_Value: Qwtu Enumerated_Domain_Value_Definition: Wenatchee and Columbia drainage basins. UPPER TERRACE-GRAVEL OF WENATCHEE RIVERÑ Gravel identical to Qw but forms prominent terrace more than 40 m above Wenatchee River; soil on terrace lacks textural B-horizon, and granodiorite stones are mostly fresh; unlike lower terrace (Qwtl), upper terrace is extensively overlain by thin-bedded silt (Qsi) Enumerated_Domain: Enumerated_Domain_Value: Qwtus Enumerated_Domain_Value_Definition: Wenatchee and Columbia drainage basins. UPPER SIDESTREAM TERRACE-ALLUVIUMÑ Alluvium of incised sidestream terrace that is graded to incised Qwtu mainstream terrace Enumerated_Domain: Enumerated_Domain_Value: Qta Enumerated_Domain_Value_Definition: Wenatchee and Columbia drainage basins. GRAVELLY SAND OF "a" TERRACEÑPoorly exposed fine to coarse sand, pebbly sand, and sandy small-pebble gravel; pebbles are of locally derived Swakane Biotite Gneiss, although deep cuts reveal a few clasts of granite of Columbia River provenance; forms terrace in lower Wenatchee valley at altitude of about 320 m, separated from Qtb by 50-m-high scarp; capped by 1 to 3 m of massive silt containing rare angular pebbles of leucocratic plutonic rocks and of Yakima Basalt Subgroup Enumerated_Domain: Enumerated_Domain_Value: Qsi Enumerated_Domain_Value_Definition: Wenatchee and Columbia drainage basins. SAND, LOCALLY DERIVEDÑLoose very coarse to very fine sand arkose capping divide between tributaries north of Wenatchee River; crossbeds and crosslaminations dip southward; content of angular feldspar grains derived from tributary heads to the north; deposit is as high as 60 m above gravelly sand terrace (Qta), which Qsl grades downslope into or abuts Enumerated_Domain: Enumerated_Domain_Value: Qdy Enumerated_Domain_Value_Definition: Wenatchee and Columbia drainage basins. DIAMICTONÑDiamicton mainly of angular basalt clasts similar to units Tdyy and Tdyo, albeit matrix is uncemented; only rarely contains very large entablature boulders; deposited variously on minor divides and along modern stream valleys. Evidently formed by debris flows guided by existing topography; mostly derived from Tdyy and Tdyo, but near Mission Peak derived directly from bedrock and is associated with large-block landslides (Qlsb). Distinguished geomorphically from Tdyy and Tdyo but otherwise indistinct from Qis and Qiso in area Enumerated_Domain: Enumerated_Domain_Value: Twh Enumerated_Domain_Value_Definition: Wenatchee and Columbia drainage basins. HIGH GRAVEL OF WENATCHEE RIVERÑGravel identical to Qw except that unstable and nondurable rocks (arkose, quartz diorite) are impoverished with respect to hard, resistant rock types (quartz, amphibolite, dike rocks); caps knoll 130 m above Wenatchee River; similar isolated deposits upvalley beyond map boundary occur on divides as high as 525 m above valley floor Enumerated_Domain: Enumerated_Domain_Value: Tdyy Enumerated_Domain_Value_Definition: Wenatchee and Columbia drainage basins. YOUNGER DIAMICTITEÑSimilar to Tdyo except that deposits occupy secondary divides descending toward, but as much as 180 m above, modern drainages; rarely contains very large entablature boulders; evidently derived from Tdyo. At and near Beehive Mountain, a lateral ridge and moat separate unit from mounds of eroded Tdyo that protrude through Tdyy as "islands" Enumerated_Domain: Enumerated_Domain_Value: Tdyo Enumerated_Domain_Value_Definition: Wenatchee and Columbia drainage basins. OLDER DIAMICTITEÑDiamictite of angular granule- to boulder-sized clasts of basalt; largest unjointed clasts are unmodified prisms of colonade as much as 1 m in diameter, and largest jointed clasts are of entablature to 20 m in intermediate diameter; the very large clasts occur as isolated blocks or are clustered in irregular lenses to at least 300 m in diameter and 80 m thick; rare angular deformed tabular blocks of the Ellensburg Formation. Occupies divides descending toward the Columbia River valley parallel to tributaries like Squilchuck and Stemilt Creeks, which have incised as deeply as 300 m into bedrock, inverting the ancient topography; debris derived from Mission Peak area Enumerated_Domain: Enumerated_Domain_Value: Twp Enumerated_Domain_Value_Definition: YAKIMA BASALT SUBGROUP OF THE COLUMBIA RIVER BASALT GROUP. Priest Rapids MemberÑ Fine- to medium-grained basalt flow with sparse plagioclase and olivine phenocrysts less than 8 mm long. lntergranular to intersertal groundmass texture. Reversed magnetic polarity. Occurs only in Kittitas Valley along Caribou Creek Enumerated_Domain: Enumerated_Domain_Value: Twf Enumerated_Domain_Value_Definition: YAKIMA BASALT SUBGROUP OF THE COLUMBIA RIVER BASALT GROUP. Frenchman Springs MemberÑTwo or more flows of fine- to medium-grained basalt. Contains abundant to sparse plagioclase phenocrysts and glomerocrysts commonly 1 to 2 cm across, irregularly distributed throughout the flow. Lowest flow is generally more highly porphyritic than overlying one and commonly has pillowed base. Normal magnetic polarity. Includes the Ginkgo flow of Mackin (1961), which contains many large plagioclase phenocrysts and glomeroporphyritic clots and the Sand Hollow flow of Mackin (1961), which has few such phenocrysts and clots. West of long 120¡07'30", a flow apparently more porphyritic than the Sand Hollow and less porphyritic than Ginkgo forms lower flow in the member; may be one of the Kelly Hollow flows of Bentley (1977) or an unusual facies of the Sand Hollow or Ginkgo flows. Flows north of West Bar sparsely porphyritic except for a highly porphyritic flow on Badger Mountain west of Rock Island Creek. Member is sparsely porphyritic where exposed in fault blocks near Parke and Caribou Creek along east side of Kittitas Valley. Locally includes the Vantage Member of Ellensburg Formation where Vantage is too thin to show separately Enumerated_Domain: Enumerated_Domain_Value: Tgn2 Enumerated_Domain_Value_Definition: YAKIMA BASALT SUBGROUP OF THE COLUMBIA RIVER BASALT GROUP. Grande Ronde BasaltÑ Fine- to medium-grained basalt flows. Nonporphyritic to very sparsely plagioclase porphyritic except unit Tgrp. Groundmass textures dominantly intersertal with small clots of plagioclase and clinopyroxene. Complexly jointed. Pillows, hyaloclastites, and invasive flows common. Locally includes thin sedimentary deposits of Ellensburg Formation. Many flows in southeastern part of quadrangle display typical jointing patterns including basal colonnade, central entablature, and, in some flows, upper colonnade, all thoroughly described in nearby areas by Mackin (1961, p. 9-12), Swanson (1967, p. 1083-1086), and Diery and McKee (1969, p. 52-54). Cliffs just east of Crescent Bar (studied by McDougall, 1976, p. 780, and Waters, 1961, p. 598) and along most tributary canyons west of Columbia River show these features well. Jointing patterns in much of area are considerably affected by interaction of flows with water and sediment. Subdivided on basis of magnetic polarity and locally distinctive outcrop characteristics. Upper flows of normal magnetic polarity. Enumerated_Domain: Enumerated_Domain_Value: Tgb Enumerated_Domain_Value_Definition: YAKIMA BASALT SUBGROUP OF THE COLUMBIA RIVER BASALT GROUP. Grande Ronde BasaltÑ Fine- to medium-grained basalt flows. Nonporphyritic to very sparsely plagioclase porphyritic except unit Tgrp. Groundmass textures dominantly intersertal with small clots of plagioclase and clinopyroxene. Complexly jointed. Pillows, hyaloclastites, and invasive flows common. Locally includes thin sedimentary deposits of Ellensburg Formation. Many flows in southeastern part of quadrangle display typical jointing patterns including basal colonnade, central entablature, and, in some flows, upper colonnade, all thoroughly described in nearby areas by Mackin (1961, p. 9-12), Swanson (1967, p. 1083-1086), and Diery and McKee (1969, p. 52-54). Cliffs just east of Crescent Bar (studied by McDougall, 1976, p. 780, and Waters, 1961, p. 598) and along most tributary canyons west of Columbia River show these features well. Jointing patterns in much of area are considerably affected by interaction of flows with water and sediment. Subdivided on basis of magnetic polarity and locally distinctive outcrop characteristics. Upper flows of normal magnetic polarity. Basalt of Beaver CreekÑYoungest flow in unit in northeastern part of mapped area. Well-developed colonnade; pillowed base in places Enumerated_Domain: Enumerated_Domain_Value: Tgk Enumerated_Domain_Value_Definition: YAKIMA BASALT SUBGROUP OF THE COLUMBIA RIVER BASALT GROUP. Grande Ronde BasaltÑ Fine- to medium-grained basalt flows. Nonporphyritic to very sparsely plagioclase porphyritic except unit Tgrp. Groundmass textures dominantly intersertal with small clots of plagioclase and clinopyroxene. Complexly jointed. Pillows, hyaloclastites, and invasive flows common. Locally includes thin sedimentary deposits of Ellensburg Formation. Many flows in southeastern part of quadrangle display typical jointing patterns including basal colonnade, central entablature, and, in some flows, upper colonnade, all thoroughly described in nearby areas by Mackin (1961, p. 9-12), Swanson (1967, p. 1083-1086), and Diery and McKee (1969, p. 52-54). Cliffs just east of Crescent Bar (studied by McDougall, 1976, p. 780, and Waters, 1961, p. 598) and along most tributary canyons west of Columbia River show these features well. Jointing patterns in much of area are considerably affected by interaction of flows with water and sediment. Subdivided on basis of magnetic polarity and locally distinctive outcrop characteristics. Upper flows of normal magnetic polarity. Basalt of Keane RanchÑSeveral invasive flows and associated hyaloclastite and peperite. Includes flows of at least three different chemical compositions Enumerated_Domain: Enumerated_Domain_Value: Tgd Enumerated_Domain_Value_Definition: YAKIMA BASALT SUBGROUP OF THE COLUMBIA RIVER BASALT GROUP. Grande Ronde BasaltÑ Fine- to medium-grained basalt flows. Nonporphyritic to very sparsely plagioclase porphyritic except unit Tgrp. Groundmass textures dominantly intersertal with small clots of plagioclase and clinopyroxene. Complexly jointed. Pillows, hyaloclastites, and invasive flows common. Locally includes thin sedimentary deposits of Ellensburg Formation. Many flows in southeastern part of quadrangle display typical jointing patterns including basal colonnade, central entablature, and, in some flows, upper colonnade, all thoroughly described in nearby areas by Mackin (1961, p. 9-12), Swanson (1967, p. 1083-1086), and Diery and McKee (1969, p. 52-54). Cliffs just east of Crescent Bar (studied by McDougall, 1976, p. 780, and Waters, 1961, p. 598) and along most tributary canyons west of Columbia River show these features well. Jointing patterns in much of area are considerably affected by interaction of flows with water and sediment. Subdivided on basis of magnetic polarity and locally distinctive outcrop characteristics. Upper flows of normal magnetic polarity. Invasive flow of Duffy CreekÑShown only in extreme northeast corner of mapped area Enumerated_Domain: Enumerated_Domain_Value: Tgr2 Enumerated_Domain_Value_Definition: YAKIMA BASALT SUBGROUP OF THE COLUMBIA RIVER BASALT GROUP. Grande Ronde BasaltÑ Fine- to medium-grained basalt flows. Nonporphyritic to very sparsely plagioclase porphyritic except unit Tgrp. Groundmass textures dominantly intersertal with small clots of plagioclase and clinopyroxene. Complexly jointed. Pillows, hyaloclastites, and invasive flows common. Locally includes thin sedimentary deposits of Ellensburg Formation. Many flows in southeastern part of quadrangle display typical jointing patterns including basal colonnade, central entablature, and, in some flows, upper colonnade, all thoroughly described in nearby areas by Mackin (1961, p. 9-12), Swanson (1967, p. 1083-1086), and Diery and McKee (1969, p. 52-54). Cliffs just east of Crescent Bar (studied by McDougall, 1976, p. 780, and Waters, 1961, p. 598) and along most tributary canyons west of Columbia River show these features well. Jointing patterns in much of area are considerably affected by interaction of flows with water and sediment. Subdivided on basis of magnetic polarity and locally distinctive outcrop characteristics. Flows of reversed magnetic polarity Enumerated_Domain: Enumerated_Domain_Value: Tghc Enumerated_Domain_Value_Definition: YAKIMA BASALT SUBGROUP OF THE COLUMBIA RIVER BASALT GROUP. Grande Ronde BasaltÑ Fine- to medium-grained basalt flows. Nonporphyritic to very sparsely plagioclase porphyritic except unit Tgrp. Groundmass textures dominantly intersertal with small clots of plagioclase and clinopyroxene. Complexly jointed. Pillows, hyaloclastites, and invasive flows common. Locally includes thin sedimentary deposits of Ellensburg Formation. Many flows in southeastern part of quadrangle display typical jointing patterns including basal colonnade, central entablature, and, in some flows, upper colonnade, all thoroughly described in nearby areas by Mackin (1961, p. 9-12), Swanson (1967, p. 1083-1086), and Diery and McKee (1969, p. 52-54). Cliffs just east of Crescent Bar (studied by McDougall, 1976, p. 780, and Waters, 1961, p. 598) and along most tributary canyons west of Columbia River show these features well. Jointing patterns in much of area are considerably affected by interaction of flows with water and sediment. Subdivided on basis of magnetic polarity and locally distinctive outcrop characteristics. Flows of reversed magnetic polarity. Invasive flow of Howard Creek (Howard Creek Member of Rosenmeir, 1968, p. 22-25)ÑUpper contact is more complex than that of other invasive flows, consisting largely of a thick hyaloclastite and, locally, peperite. Well exposed 500 m southeast of Grouse Spring in upper part of Naneum basin and along the west side of Diamond Head. Chilled sill-like contact against sedimentary rocks is exposed locally, as along the road to Grouse Spring at elevation 1510 m Enumerated_Domain: Enumerated_Domain_Value: Tgh Enumerated_Domain_Value_Definition: YAKIMA BASALT SUBGROUP OF THE COLUMBIA RIVER BASALT GROUP. Grande Ronde BasaltÑ Fine- to medium-grained basalt flows. Nonporphyritic to very sparsely plagioclase porphyritic except unit Tgrp. Groundmass textures dominantly intersertal with small clots of plagioclase and clinopyroxene. Complexly jointed. Pillows, hyaloclastites, and invasive flows common. Locally includes thin sedimentary deposits of Ellensburg Formation. Many flows in southeastern part of quadrangle display typical jointing patterns including basal colonnade, central entablature, and, in some flows, upper colonnade, all thoroughly described in nearby areas by Mackin (1961, p. 9-12), Swanson (1967, p. 1083-1086), and Diery and McKee (1969, p. 52-54). Cliffs just east of Crescent Bar (studied by McDougall, 1976, p. 780, and Waters, 1961, p. 598) and along most tributary canyons west of Columbia River show these features well. Jointing patterns in much of area are considerably affected by interaction of flows with water and sediment. Subdivided on basis of magnetic polarity and locally distinctive outcrop characteristics. Flows of reversed magnetic polarity. Invasive flow of HammondÑSame as Hammond sill of Hoyt (1961) Enumerated_Domain: Enumerated_Domain_Value: Tgn1 Enumerated_Domain_Value_Definition: YAKIMA BASALT SUBGROUP OF THE COLUMBIA RIVER BASALT GROUP. Grande Ronde BasaltÑ Fine- to medium-grained basalt flows. Nonporphyritic to very sparsely plagioclase porphyritic except unit Tgrp. Groundmass textures dominantly intersertal with small clots of plagioclase and clinopyroxene. Complexly jointed. Pillows, hyaloclastites, and invasive flows common. Locally includes thin sedimentary deposits of Ellensburg Formation. Many flows in southeastern part of quadrangle display typical jointing patterns including basal colonnade, central entablature, and, in some flows, upper colonnade, all thoroughly described in nearby areas by Mackin (1961, p. 9-12), Swanson (1967, p. 1083-1086), and Diery and McKee (1969, p. 52-54). Cliffs just east of Crescent Bar (studied by McDougall, 1976, p. 780, and Waters, 1961, p. 598) and along most tributary canyons west of Columbia River show these features well. Jointing patterns in much of area are considerably affected by interaction of flows with water and sediment. Subdivided on basis of magnetic polarity and locally distinctive outcrop characteristics. Lower flows of normal magnetic polarityÑOccurs only along Naneum Creek and contains at least two invasive flows Enumerated_Domain: Enumerated_Domain_Value: Tev Enumerated_Domain_Value_Definition: ELLENSBURG FORMATION. Volcaniclastic rocksÑMostly sandstone and siltstone but includes conglomerate, diamictite of probable laharic origin, and very minor amounts of micaceous feldspathic siltstone. Weakly lithified. Volcaniclastic detritus mostly andesitic and dacitic. Clasts commonly pumiceous. Volcanic debris probably freshly erupted from volcanoes in Cascade Range. Interbedded with and overlies Grande Ronde Basalt Enumerated_Domain: Enumerated_Domain_Value: Tes Enumerated_Domain_Value_Definition: ELLENSBURG FORMATION. Sandstone, siltstone, and conglomerateÑMicaceous feldspathic sandstone, siltstone, and very minor amount of pebble conglomerate and dark mudstone. Weakly indurated. Interbedded with Grande Ronde and, locally, Wanapum Basalt Enumerated_Domain: Enumerated_Domain_Value: Tesv Enumerated_Domain_Value_Definition: ELLENSBURG FORMATION. Sandstone, siltstone, and conglomerateÑMicaceous feldspathic sandstone, siltstone, and very minor amount of pebble conglomerate and dark mudstone. Weakly indurated. Interbedded with Grande Ronde and, locally, Wanapum Basalt. Vantage MemberÑOccurs between Grande Ronde and Wanapum Basalts. Maximum thickness about 30 m, average thickness 5 to 10 m. Pinches out toward Naneum Ridge anticline Enumerated_Domain: Enumerated_Domain_Value: Tda Enumerated_Domain_Value_Definition: DIAMICTITE OF ANDESITEÑCliff-forming massive diamictite north of East Wenatchee, mostly angular porphyritic andesite to dacite clasts as large as 0.75 m set in a volcaniclastic matrix. About 2 percent of gravel fraction is roundedÑabout 1 percent porphyritic andesite and dacite and 1 percent vein quartz and various intrusive and metamorphic rock types Enumerated_Domain: Enumerated_Domain_Value: Thp Enumerated_Domain_Value_Definition: HORNBLENDE ANDESITE PORPHYRY COMPLEX OF HORSE LAKE MOUNTAIN. Hornblende andesite porphyryÑGray, commonly with black shiny hornblede prisms to several centimeters long; euhedral plagioclase and stubby pyroxene crystals in a dense gray matrix which in some rock is crowded with microphenocrysts of plagioclase, hypersthene, opaque minerals, and rare quartz and K-feldspar. Matrix is commonly pilotaxitic to intersertal. Some rocks pervasively altered to chlorite, clays, zeolite, and calcite. Includes masses of fine-grained slightly porphyritic to xenomorphic granular pyroxene gabbro altered to actinolite, clays, and calcite and rare muscovite. Sills commonly about 10 cm to 15 m thick and with good columnar jointing (Bay!ey, 1965, p. 12-23) Enumerated_Domain: Enumerated_Domain_Value: Thbd Enumerated_Domain_Value_Definition: HORNBLENDE ANDESITE PORPHYRY COMPLEX OF HORSE LAKE MOUNTAIN. Breccia dikeÑAngular fragments less than one millimeter to several meters across of sandstone, argillite, cumulative homblende gabbro, quartz diorite, and quartz gabbro in a chioritic mesostasis with small plagioclase laths. Also contains abundant euhedral hornblende phenocrysts to 6 cm long with abundant groundmass inclusions. Pilotaxitic marginal phase similar to hornblende andesite porphyry (Thp) with only a few inclusions Enumerated_Domain: Enumerated_Domain_Value: Tbf Enumerated_Domain_Value_Definition: Southwestern sequence BASALT OF FROST MOUNTAIN ÑDense black microporphyritic olivine basalt; microphenocrysts of plagioclase, clinopyroxene, and olivine in interseraI matrix of plagioclase, clinopyroxene, opaque ore, and brown glass. Locally altered to siliceous white rock. Locally columnar jointed Enumerated_Domain: Enumerated_Domain_Value: Tap Enumerated_Domain_Value_Definition: Southwestern sequence ANDESITE OF PEOH POINTÑGray to black hornblende-hypersthene dacite porphyry; holocrystalline- glomeroporphyritic fine-grained granular. Local crude columnar jointing Enumerated_Domain: Enumerated_Domain_Value: Tta Enumerated_Domain_Value_Definition: Southwestern sequence. TANEUM ANDESITEÑMostly gray to green and brown, generally highly altered porphyritic to nonporphyritic andesite, dacite, and rhyolite flows, tuffs, and breccia; greenish-blue, purple, and white altered ash-flow tuffs, commonly welded, with relict quartz and plagioclase phenocrysts Enumerated_Domain: Enumerated_Domain_Value: Tm Enumerated_Domain_Value_Definition: Southwestern sequence. MANASTASH FORMATIONÑSandstone, shale, and conglomerate. Light-greenish-gray or tan, massive, medium- to coarse-grained feldspathic sandstone averaging 55 to 60 percent quartz and 5 to 10 percent lithic clasts. Minor seams of bituminous coal; leaf fossils locally Enumerated_Domain: Enumerated_Domain_Value: Tru Enumerated_Domain_Value_Definition: Western sequence. ROSLYN FORMATION. Upper memberÑMedium- to fine-grained, white-weathering to yellow, micaceous, lithofeldspathic sandstone, some with calcite cement. Dark olive-gray to greenish-yellow siltstone, predominantly quartz and feldspar; thin-bedded to laminated. Subordinate 0.6- to 6-m thick seams of well-jointed, banded bituminous coal. See "Coal Measures" of Bressler (1951, p. 31) Enumerated_Domain: Enumerated_Domain_Value: Trm Enumerated_Domain_Value_Definition: Western sequence. ROSLYN FORMATION. Middle memberÑSimilar to upper member (Tru) but only very minor stringers of coal Enumerated_Domain: Enumerated_Domain_Value: Trl Enumerated_Domain_Value_Definition: Western sequence. ROSLYN FORMATION. Lower memberÑMostly white, weathering to yellowish and pale orange, medium- to coarse-grained, micaceous, in part zeolitic, lithic, feldspathic, and lithofeldspathic sandstone with crossbedding, pebble stringers, and cut-and-fill structures in beds to 15 cm thick. Abundant conglomerate and pebbly sandstone with rounded pebbles of granitic and aphanitic extrusive or hypabyssal rock. Includes Bressler's (1951, p. 35) basal beds of red to red-brown fine-grained sandstone with minor angular clasts of quartz, metamorphic rock fragments, some feldspar, and other rocks. Some sandstone with abundant calcite Enumerated_Domain: Enumerated_Domain_Value: Trhf Enumerated_Domain_Value_Definition: Western sequence. RHYOLITE. Rhyolite flows, tuff, and tuffaceous shales; some interbedded sandstoneÑFlows are white rhyolite weathering irregularly to brown and yellow. Commonly poorly expsed. Earthy or finely granular by spherulitic devitrification. Microphenocrysts of quartz and plagioclase in mesostasis of very fine-grained quartz, plagioclase, K-feldspar, sericite, hematite, and chlorite; rare plagioclase microlites. Clayton (1973, p. 29) reports sanidine phenocrysts and a Si02 content greater than 80 percent. Light-brown interbedded tuff and shales with volcanic clasts of rhyolite or altered rhyolite as above Enumerated_Domain: Enumerated_Domain_Value: Trhi Enumerated_Domain_Value_Definition: Western sequence. RHYOLITE. Rhyolite dikes and plugsÑSimilar to extrusive rhyolite but appears to crosscut structure and lacks sedimentary interbeds Enumerated_Domain: Enumerated_Domain_Value: Ttb Enumerated_Domain_Value_Definition: Western sequence. TEANAWAY BASALT ÑBasalt, basaltic tuff, and breccia with minor andesite, dacite, and rhyolite. Black, generally dense to glassy nonporphyritic pyroxene and rare divine basalt, weathering red brown to yellow. Commonly fine-grained intersertal with plagioclase laths and clinopyroxene; interstices of brown glass or alteration products (Clayton, 1973, p. 18-19). Blocky to columnar-jointed flows characterized by large chalcedony and calcite amygdules. Tuff and breccia commonly altered to clays. Siliceous varietes including welded tuff are white, purple, and highly altered but contain relict phenocrysts of quartz, plagioclase, and rare K-feldspar Enumerated_Domain: Enumerated_Domain_Value: Ts Enumerated_Domain_Value_Definition: Western sequence. SWAUK FORMATIONÑRelatively dark gray weathering to tan, zeolitic, and locally calcic micaceous feldspathic to lithofeldspathic sandstone averaging about 35 to 40 percent quartz and 15 to 20 percent lithic clasts, 65 percent volcanic rock. Thin to very thick bedded, poorly sorted, locally crossbedded with lesser amounts of carbonaceous siltstone and shale, pebbly sandstone, light-colored micaceous sandstone, and conglomerate Enumerated_Domain: Enumerated_Domain_Value: Tsa Enumerated_Domain_Value_Definition: Western sequence. SWAUK FORMATION. Arkosic sandstone fades-White feldspathic sandstone, similar in appearence to sandstone of Chumstick Formation (Tc), poorly sorted, thick-bedded, and crossbedded. Interbedded with shale (Tssh) Enumerated_Domain: Enumerated_Domain_Value: Tssh Enumerated_Domain_Value_Definition: Western sequence. SWAUK FORMATION. Shale facies of Tronsen RidgeÑEvenly and thinly bedded, locally crossbedded, relatively dark grayish or tannish micaceous lithofeldspathic sandstone, alternating with evenly bedded dark carbonaceous siltstone and shale. Light-colored, finely laminated, fine-grained sandstone and siltstone without crossbedding and lesser amounts of thick-bedded and crossbedded sandstone and pebble conglomerate Enumerated_Domain: Enumerated_Domain_Value: Tsc Enumerated_Domain_Value_Definition: Western sequence. SWAUK FORMATION. Conglomerate facies-20 to 50 percent conglomerate and conglomeratic sandstone in feldspathic and lithofeldspathic sandstone, siltstone, and shale. In vicinity of Scotty and Ruby Creeks, boulders to pebbles of chert, argillite, granitic and metamorphic rock in matrix of micaceous lithofeldspathic to feldspathic sandstone, crossbedded with cut-and-fill structures. In the vicinity of Mission Peak and Mount Lillian, pebbles are predominantly light-colored volcanic rocks Enumerated_Domain: Enumerated_Domain_Value: Tsf Enumerated_Domain_Value_Definition: Western sequence. SWAUK FORMATION. Monolithologic fanglomerate faciesÑNorth of Shaser Creek, mostly rounded clasts of serpentinized peridotite in serpentinite sand matrix; contains beds of ironstone (see Lamey, 1950). In the Leavenworth fault zone north of Tronsen Creek and north of Red Hill fanglomerate is made of subangular to rounded granodiorite in angular granodiorite sand. Locally strongly sheared Enumerated_Domain: Enumerated_Domain_Value: Tsp Enumerated_Domain_Value_Definition: SILVER PASS VOLCANIC ROCKS OF FOSTER (1960)ÑMostly discontinuous beds of mafic tuff and breccia interbedded in Swauk Formation, dark-yellowish-green and containing altered mafic microporphyry-bearing plagioclase, hornblende, and pyroxene. Alteration minerals are calcite, smectite, chlorite, epidote, and zeolite. Major outcrop area west of Swauk Pass is interbedded altered tuffs and arkosic sandstone. Probable Silver Pass shown on north side of South Cle Elum Ridge is poorly exposed, altered, sheared, and locally recrystallized silicic tuff and breccia Enumerated_Domain: Enumerated_Domain_Value: Tw Enumerated_Domain_Value_Definition: Eastern sequence (Chiwaukum graben). WENATCHEE FORMATIONÑLower half predominantly bluish-gray, muscovite-bearing and, in places, tuffaceous shale and siltstone with interbed of friable limonitic quartz sandstone. Red oxidized zones in upper part of lower shale. Overlain by crossbedded quartz sandstone, beds 5 to 15 m thick, in turn overlain by thinly laminated light-gray-weathering to yellowish-brown shale, grading upward into similarly colored sandstone with little muscovite but otherwise similar to lowermost sandstone interbeds. Quartz clasts in sandstone are typically angular to subangular. Uppermost part is conglomerate, made of rounded to subrounded clasts of felsic volcanic rocks and some vein quartz and chert in a friable feldspathic sandstone matrix with appearance of an arkose in which feldspar has altered to clay. Soils developed on shales are clay-rich and characteristically expand to a popcornlike texture. South of Malaga, similar to quartz-rich sandstone and red and green shales of type Wenatchee. Near Lion Rock is green and yellow to white dacitic to rhyolitic lapilli tuff and breccia composed of altered glass shards; locally strongly eutaxitic with microphenocrysts of plagioclase and quartz. Similar tuff exposed on old State Highway 97 east of Swauk Prairie is interbedded with coarse-grained tuffaceous arkose. Locally contains carbonized wood. Where exposed along highway 970 unit is red, green, and brown shale, and orange clayey feldspathic sandstone and may be part of large Lookout Mountain landslide Enumerated_Domain: Enumerated_Domain_Value: Tc Enumerated_Domain_Value_Definition: Eastern sequence (Chiwaukum graben). CHUMSTICK FORMATION. Sandstone, shale, and conglomerateÑWhite, locally gray, medium- to coarse-grained, micaceous feldspathic sandstone averaging 35 to 40 percent quartz and 10 to 15 percent lithic clasts, 90 percent volcanic rock. Crossbedded and channeled, interbedded with lesser amounts of thin pebbly sandstone and green to bluish shale Enumerated_Domain: Enumerated_Domain_Value: Tcn Enumerated_Domain_Value_Definition: Eastern sequence (Chiwaukum graben). CHUMSTICK FORMATION. Shaly unit of Nahahum CanyonÑShaly sandstone and shale with thin bedding accented by thin laminae of biotite and organic matter. Some thin turbidite beds. Grades laterally into unit Tc Enumerated_Domain: Enumerated_Domain_Value: Tcr Enumerated_Domain_Value_Definition: Eastern sequence (Chiwaukum graben). CHUMSTICK FORMATION. Red conglomerate-Massive red to purple and green conglomerate in beds 6 m thick with 1- to 2-m thick dark-colored sandstone interbeds. Clasts are quartz diorite, phyllite and chert, as in other conglomerate, and amygdaloidal basalt and rhyotite Enumerated_Domain: Enumerated_Domain_Value: Tcf Enumerated_Domain_Value_Definition: Eastern sequence (Chiwaukum graben). CHUMSTICK FORMATION. Fanglomerate and monolithologic fanglomerateÑIn vicinity of Peshastin Creek, monolithologic fanglomerate made of well-rounded cobble- to small-boulder-size clasts of serpentinized peridotite in green to rusty brown matrix (Cashman, 1974, p. 12) interbedded with angular to subangular clasts of quartz diorite to 1 m in size in angular unsorted matrix of quartz diorite to granodiorite sand. In Mission Ridge area, quartz diorite to granodiorite material only Enumerated_Domain: Enumerated_Domain_Value: Tcb Enumerated_Domain_Value_Definition: Eastern sequence (Chiwaukum graben). CHUMSTICK FORMATION. Basalt, basaltic breccia, and tuffÑBlack to dark-brown and gray to green dense basalt and amygdaloidal basalt; flows(?) and clasts in basaltic sand matrix. Some clasts of indurated feldspathic sandstone. Crudely bedded and locally interbedded in feldspathic sandstone of unit Tc Enumerated_Domain: Enumerated_Domain_Value: Tmd Enumerated_Domain_Value_Definition: Small Tertiary intrusive bodies. MISCELLANEOUS DIKES, SILLS, AND PLUGSÑIndividual intrusive masses and areas intruded by numerous dikes and sills, generally more than 50 percent of terrain. Mostly andesite but ranges in composition from diabase to dacite and rhyolite (Gresens, 1976), generally considerably altered. An intrusive dacite dome on the south side of Dry Gulch has a partial shell of perlite and breccia. Core is porphyritic xenomorphic with broken quartz phenocrysts or xenoclasts (Coombs, 1952, p. 198-199) Enumerated_Domain: Enumerated_Domain_Value: Tcl Enumerated_Domain_Value_Definition: Small Tertiary intrusive bodies. CAMAS LAND DIABASE OF SOUTHWICK (1966)Ñ Dark-brown to black diabase and gabbro weathering to pale gray. According to Southwick (1966, p. 5-8), most of the rock is coarse-grained ophitic diabase with normally zoned labradorite to andesine, subcalcic augite, and pigeonite. Marginal phases contain olivine and have intergranular and intersertal groundmass. Alteration is slight Enumerated_Domain: Enumerated_Domain_Value: Tdg Enumerated_Domain_Value_Definition: Small Tertiary intrusive bodies. DIABASE, GABBRO, AND BASALTÑFine- to medium-grained black diabase and gabbro weathering to brown and reddish brown. Contains labradorite, clinopyroxene, rare olivine, and opaque ores. Subophitic to ophitic texture; variously altered to smectites, calcite, and chlorite (Stout, 1961, p. 350) Enumerated_Domain: Enumerated_Domain_Value: Thg Enumerated_Domain_Value_Definition: Small Tertiary intrusive bodies. HYPERSTHENE GABBROÑHeterogeneous, fine- to medium-grained gabbro with hypersthene and clinopyroxene commonly altered to pale-green amphibolite and clays. Calcic plagioclase is rimmed with graphic intergrowths of albite(?) and K-feldspar and feldspar and quartz. Locally brecciated and mylonitized Enumerated_Domain: Enumerated_Domain_Value: Kmsq Enumerated_Domain_Value_Definition: Pre-Tertiary basement. ROCKS OF THE MOUNT STUART BATHOLITH. Biotite-hornblende-quartz dioriteÑMedium-grained hypidiomorphic granular; massive to strongly gneissic near margins of pluton. Includes some granodiorite Enumerated_Domain: Enumerated_Domain_Value: Kmsg Enumerated_Domain_Value_Definition: Pre-Tertiary basement. ROCKS OF THE MOUNT STUART BATHOLITH. Biotite-hornblende granodioriteÑMedium-grained hypidiomorphic granular. Massive to weakly gneissic in area of Enchantment Lakes, rich in mafic inclusions. Near summit of Mount Stuart cut by aplite and pegmatite dikes and contains vuggy feldspar clots and radial bursts of tourmaline Enumerated_Domain: Enumerated_Domain_Value: Kmsm Enumerated_Domain_Value_Definition: Pre-Tertiary basement. ROCKS OF THE MOUNT STUART BATHOLITH. Granodiorite metaporphyry and metaquartz dioriteÑSimilar to metaporphyry in contact complex, but nonschistose Enumerated_Domain: Enumerated_Domain_Value: Kmsc Enumerated_Domain_Value_Definition: Pre-Tertiary basement. ROCKS OF THE MOUNT STUART BATHOLITH. Contact complexÑ Mostly hornblende and biotite schist, gneissic leucoquartz diorite, schistose hornblende-biotite granodiorite metaporphyry with minor serpentinite, altered; as much as 10 m thick, trending mostly northwest. Some rocks thermally metamorphosed. Probably related to metaporphyry in unit Kmsm Enumerated_Domain: Enumerated_Domain_Value: sg Enumerated_Domain_Value_Definition: Pre-Tertiary basement. SWAKANE BIOTITE GNEISSÑFine- to medium-grained biotite-plagioclase-quartz gneiss; commonly granoblastic and locally strongly cataclastic to mylonitic, with varying amounts of muscovite and garnet and small amounts of sphene, zircon, apatite, and magnetite (Waters, 1932, p. 615). Amphibolite, hornblende schist, and calc silicate schist locally. Alaskite and pegmatite dikes and sills Enumerated_Domain: Enumerated_Domain_Value: KJisc Enumerated_Domain_Value_Definition: Pre-Tertiary basement. INGALLS TECTONIC COMPLEX. Silicate carbonate rockÑBright orange craggy masses of silica, calcite, and magnesium(?) carbonate derived from alteration of serpentinite along faults. Locally, small patches of garnierite, hence called nickel dikes (Pratt, 1958, p. 164-165; Miller, 1975, p. 32-33) Enumerated_Domain: Enumerated_Domain_Value: KJia Enumerated_Domain_Value_Definition: Pre-Tertiary basement. INGALLS TECTONIC COMPLEX. Amphibolite and schistose amphibolite-Very fine grained massive to weakly foliate amphibolite; minor epidote minerals, biotite, opaque ores, and sphene. Probably metamorphosed Hawkins Formation (Smith, 1904, p. 4) or sheared and recrystallized gabbro or diabase Enumerated_Domain: Enumerated_Domain_Value: KJihs Enumerated_Domain_Value_Definition: Pre-Tertiary basement. INGALLS TECTONIC COMPLEX. Hornblende schist, schistose amphibolite, and lesser amounts of mica schistÑMostly very fine grained actinolitic hornblende and hornblende plagioclase schist; locally, cordierite biotite schist, garnet biotite schist, and small pods of serpentinized peridotite. Probably more thoroughly metamorphosed greenstone and associated sedimentary rocks of the Hawkins Formation. Probably includes metamorphosed Peshastin Formation Enumerated_Domain: Enumerated_Domain_Value: KJid Enumerated_Domain_Value_Definition: Pre-Tertiary basement. INGALLS TECTONIC COMPLEX. Diabase and gabbroÑMostly highly heterogeneous uralitized pyroxene gabbro and diabase ranging from hypidiomorphic granular to ophitic or diabasic. Southwick (1974, p. 398) reports anorthite in the least-altered anorthositic varieties. Shearing and brecciation is common with recrystallization to weakly foliate amphibolite. Layered structure is uncommon; cumulate textures are lacking in eastern part (Southwick, 1974, p. 98) but present in the western part (Miller, 1975, p. 42). Esmeralda Peaks and Hawkins Mountain are mostly diabase Enumerated_Domain: Enumerated_Domain_Value: KJisp Enumerated_Domain_Value_Definition: Pre-Tertiary basement. INGALLS TECTONIC COMPLEX. Foliated and massive serpentinite, serpentinized peridotite, and metaserpentinite and metaperidotiteÑPrior to serpentinization, ultramafic rocks were mostly harzburgite, with minor wehrlite and dunite (Southwick, 1974, p. 397). South of the Stuart Range, harzburgite (shown without shearing symbol) is characterized by spinel foliation and some compositional layering including chromite pods and layers. A relatively unserpentinized block of hornblende-bearing lherzolite (shown without shearing symbols) lies west of Mount Stuart (Miller and Frost, l977,p. 284, Cowan and Miller, 1980, p. 2). In an irregular aureole around Mount Stuart batholith, ultramafic rocks are commonly thermally metamorphosed to talc-tremolite and anthophyllite rocks, all bearing newly formed forsterite and characteristically orange weathering and blocky jointed (Miller, 1975, p. 33; Frost, 1973b). West and southeast of Mount Stuart areas of strongly sheared serpertinite (shearing symbols) from Cowan and Miller (1980, p. 2) Enumerated_Domain: Enumerated_Domain_Value: KJim Enumerated_Domain_Value_Definition: Pre-Tertiary basement. INGALLS TECTONIC COMPLEX. Metabasalt (greenstone), tuff, and brecciaÑPredominantly massive greenstone with lesser amounts of metabreccia and tuff, mostly in greenschist facies: Hawkins Formation of Smith (1904, p. 4) Breccias contain metamorphosed andesite or keratophyre (Southwick, 1974, p. 395-396). Locally includes fine-grained amphibolite and metadiabase Enumerated_Domain: Enumerated_Domain_Value: KJiar Enumerated_Domain_Value_Definition: Pre-Tertiary basement. INGALLS TECTONIC COMPLEX. Argillite, phyllite, sandstone, metasandstone and conglomerate, metamorphosed flows and breccias, and minor chert and marbleÑPredominantly black hackly argillite to slaty argillite with subordinate very fine grained, angular, poorly sorted dark lithic subquartzose sandstone with graded beds, local rhythmite. Subordinate volcanic-lithic microbreccia and small pebble conglomerate. Red, gray, and black radiolarian chert and metachert. Dacitic to andesitic tuffs, breccias, and flows, mostly metamorphosed, minor on east (Southwk k, 1974, p. 395), more abundant in De Roux Creek area (Miller, 1975, p. 6). Locally includes very fine grained amphibolite, cordierite-biotite schist, and calc-silicate granulite. Includes most of Peshastin Formation of Smith (1904, p. 3-4) Enumerated_Domain: Enumerated_Domain_Value: pJmg Enumerated_Domain_Value_Definition: Pre-Tertiary basement. LOW-GRADE METAMORPHIC SUITE. GreenschistÑVery fine gained epidote-chlorite-quartz schist with varying amounts of crossite. Relict pillow structure in greenschist northwest of Keenan Meadows . Includes pegmatitic biotite gneiss, hornblende gabbro, and quartz plagioclase gneiss west of Buck Meadows Enumerated_Domain: Enumerated_Domain_Value: pJmp Enumerated_Domain_Value_Definition: Pre-Tertiary basement. LOW-GRADE METAMORPHIC SUITE. Phyllite-Dark graphitic albite-muscovite -quartz phyllite grades into fine-grained mica schist. Includes minor geenschist and blue amphibole schist and pods of metagabbro. Well-developed cleavage, crinkled, and isoclinally folded Enumerated_Domain: Enumerated_Domain_Value: wa Enumerated_Domain_Value_Definition: water Enumerated_Domain: Enumerated_Domain_Value: gl Enumerated_Domain_Value_Definition: glacier Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: wenlinfeature.aat Attribute: Attribute_Label: FID 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_Definition: Internal node number for the beginning of an arc (from-node). Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Whole numbers that are automatically generated. Attribute: Attribute_Label: TNODE# Attribute_Definition: Internal node number for the end of an arc (to-node). Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Whole numbers that are automatically generated. Attribute: Attribute_Label: LPOLY# Attribute_Definition: Internal node number for the left polygon. Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Whole numbers that are automatically generated. Attribute: Attribute_Label: RPOLY# Attribute_Definition: Internal node number for the right polygon. Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Whole numbers that are automatically generated. Attribute: Attribute_Label: 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: WENLINFEATURE# 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: WENLINFEATURE-ID Attribute_Definition: User-defined feature number. Attribute_Definition_Source: ESRI Attribute: Attribute_Label: LTYPE Attribute_Definition: symbol of structure, geologic or morphologic unit Attribute_Definition_Source: Author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Qsy Enumerated_Domain_Value_Definition: Wenatchee and Columbia drainage basins. HOLOCENE DRIFT. Younger subdriftÑInner cluster of Neoglacial moraines (informally Brynhild) of angular to subangular quartz-diorite boulders in upper basin of Enchantment Lakes area; average lichen cover less than 5 percent; Rhizocaron thallus to 12 mm; maximum depth of weathering pits 6 cm; depth of soil oxidation 2 cm; devoid of trees and overlying tephra. Only moraine crests shown on map Enumerated_Domain: Enumerated_Domain_Value: Qso Enumerated_Domain_Value_Definition: Wenatchee and Columbia drainage basins. HOLOCENE DRIFT. Older subdriftÑOuter moraine (informally Brisingamen) of quartz-diorite boulders in Enchantment Lakes area beyond limits of Brynhild moraines; average lichen cover 20 to 80 percent; maximum diameter of thallus of Rhizocaron 210 mm; weathering pits as deep as 13 cm; depth of soil oxidation 23 cm or more; in places supports stands of western larch; overlain by Mazama tephra. Only moraine crests shown on map Enumerated_Domain: Enumerated_Domain_Value: Tgrp Enumerated_Domain_Value_Definition: YAKIMA BASALT SUBGROUP OF THE COLUMBIA RIVER BASALT GROUP. Grande Ronde BasaltÑ Fine- to medium-grained basalt flows. Nonporphyritic to very sparsely plagioclase porphyritic except unit Tgrp. Groundmass textures dominantly intersertal with small clots of plagioclase and clinopyroxene. Complexly jointed. Pillows, hyaloclastites, and invasive flows common. Locally includes thin sedimentary deposits of Ellensburg Formation. Many flows in southeastern part of quadrangle display typical jointing patterns including basal colonnade, central entablature, and, in some flows, upper colonnade, all thoroughly described in nearby areas by Mackin (1961, p. 9-12), Swanson (1967, p. 1083-1086), and Diery and McKee (1969, p. 52-54). Cliffs just east of Crescent Bar (studied by McDougall, 1976, p. 780, and Waters, 1961, p. 598) and along most tributary canyons west of Columbia River show these features well. Jointing patterns in much of area are considerably affected by interaction of flows with water and sediment. Subdivided on basis of magnetic polarity and locally distinctive outcrop characteristics. Upper flows of normal magnetic polarity. Basalt of Rocky PointÑFlow, possibly two flows in places, containing 2 to 5 percent plagioclase phenocrysts less than 5 mm long. Lowermost flow in unit Tgn2, along North Fork of Manastash Creek, consists largely of unsorted hyalociastite with sand- to boulder-size fragments of broken pillows with or without glassy rinds. Deposit is 10 to 15 m thick, unbedded, and locally contains intermixed sand. Vertical dewatering conduits occur in places Enumerated_Domain: Enumerated_Domain_Value: cross-section line Enumerated_Domain_Value_Definition: Location of cross- sections on printed map. Enumerated_Domain: Enumerated_Domain_Value: f.a., anticline certain Enumerated_Domain_Value_Definition: Axial trace of fold based on strike and dip of bedding. Enumerated_Domain: Enumerated_Domain_Value: f.a., anticline, concealed Enumerated_Domain_Value_Definition: Axial trace of fold based on strike and dip of bedding, where beds defining fold are hidden beneath younger unfolded materials Enumerated_Domain: Enumerated_Domain_Value: f.a., monocline, certain Enumerated_Domain_Value_Definition: Axial trace of fold based on strike and dip of bedding. Enumerated_Domain: Enumerated_Domain_Value: f.a., monocline, concealed Enumerated_Domain_Value_Definition: Axial trace of fold based on strike and dip of bedding, where beds defining fold are hidden beneath younger unfolded materials. Enumerated_Domain: Enumerated_Domain_Value: f.a., syncline, certain Enumerated_Domain_Value_Definition: Axial trace of fold based on strike and dip of bedding. Enumerated_Domain: Enumerated_Domain_Value: f.a., syncline, concealed Enumerated_Domain_Value_Definition: Axial trace of fold based on strike and dip of bedding, where beds defining fold are hidden beneath younger unfolded materials. Enumerated_Domain: Enumerated_Domain_Value: ironstone Enumerated_Domain_Value_Definition: Western sequence. SWAUK FORMATION. Tsir, IronstoneÑIron-rich sandstone, shale, and conglomerate, locally well bedded. Iron minerals are limonite, hematite, and magnetite. Conglomerate composed of peridotite and serpentinized peridotite in iron-rich matrix. Most deposits are rich in nickel (Broughton, 1944; Lamey, 1950) Enumerated_Domain: Enumerated_Domain_Value: morainal crest Enumerated_Domain_Value_Definition: Generalized crest of morain. Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: wenpoints.pat Attribute: Attribute_Label: FID 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_Definition: Area of feature in internal units squared. Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Area is always zero for point coverages. Values are automatically generated. Attribute: Attribute_Label: PERIMETER Attribute_Definition: Perimeter of feature in internal units. Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Perimeter is always zero for point coverages. Values are automatically generated. Attribute: Attribute_Label: WENPOINTS# 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: WENPOINTS-ID Attribute_Definition: User-defined feature number. Attribute_Definition_Source: ESRI Attribute Attribute_Label: PTTYPE Attribute_Definition: Location of age sample or determination of basalt flow direction Attribute_Definition_Source: Author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: age sample Enumerated_Domain_Value_Definition: radiometric or fission-track age Enumerated_Domain: Enumerated_Domain_Value: bs flow direction Enumerated_Domain_Value_Definition: Direction of flow of lava of Columbia River Basalt Group based mostly on forset bedded lava deltas. Attribute: Attribute_Label: SAMPNO Attribute_Definition: Field number of rock sample analysed for age determination Attribute_Definition_Source: Author Attribute: Attribute_Label: DESCRIPTION Attribute_Definition: comments on stratigraphy, lithology, age, etc. Attribute_Definition_Source: Author Attribute_Label: AGE Attribute_Definition: radiometric age in m.yl, mineral, method Attribute_Definition_Source: Author Attribute_Label: REFERENCE Attribute_Definition: source of age information; this map or other source Attribute_Definition_Source: Author Attribute_Label: MAPNO Attribute_Definition: number on printed map keyed to Table 1 (see http://pubs.usgs.gov/imap/i1311/) Attribute_Definition_Source: Author Attribute: Attribute_Label: UNIT Attribute_Definition: unit symbol; see http://pubs.usgs.gov/imap/i1311/ Attribute_Definition_Source: Author Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: wenpattern.aat Attribute: Attribute_Label: FID 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_Definition: Internal node number for the beginning of an arc (from-node). Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Whole numbers that are automatically generated. Attribute: Attribute_Label: TNODE# Attribute_Definition: Internal node number for the end of an arc (to-node). Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Whole numbers that are automatically generated. Attribute: Attribute_Label: LPOLY# Attribute_Definition: Internal node number for the left polygon. Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Whole numbers that are automatically generated. Attribute: Attribute_Label: RPOLY# Attribute_Definition: Internal node number for the right polygon. Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Whole numbers that are automatically generated. Attribute: Attribute_Label: 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: WENPATTERN# 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: WENPATTERN-ID Attribute_Definition: User-defined feature number. Attribute_Definition_Source: ESRI Attribute: Attribute_Label: LTYPE Attribute_Definition: arc symbol Attribute_Definition_Source: Author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: scratch boundary, certain Enumerated_Domain_Value_Definition: polygon boundary which will not plot or print Detailed_Description: Entity_Type: Entity_Type_Label: wenpattern.pat Attribute: Attribute_Label: FID 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_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: PERIMETER Attribute_Definition: Perimeter of feature in internal units. Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Positive real numbers that are automatically generated. Attribute: Attribute_Label: WENPATTERN# 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: WENPATTERN-ID Attribute_Definition: User-defined feature number. Attribute_Definition_Source: ESRI Attribute: Attribute_Label: PTYPE Attribute_Definition: special overlays to show extent of dike swarms and shearing in ultramafic rocks and Swauk Formation Attribute_Definition_Source: Author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: blank Enumerated_Domain_Value_Definition: areas without special overlay Enumerated_Domain: Enumerated_Domain_Value: dikeswarm Enumerated_Domain_Value_Definition: HORNBLENDE ANDESITE PORPHYRY COMPLEX OF HORSE LAKE MOUNTAIN. ThdÑArea of numerous hornblende porphyry andesite dikes and sills (on paper copy shown as overprint over country rock). In Horse Lake Mountain summit area, dikes and sills make up more than 60 percent of terrain Enumerated_Domain: Enumerated_Domain_Value: Kmsd Enumerated_Domain_Value_Definition: Pre-Tertiary basement. ROCKS OF THE MOUNT STUART BATHOLITH. Hornblende feldspar dacite and granodiorite dike complex (on paper copy diagonal line overprint on other units) ÑFine-and medium-grained hornblende feldspar dacite porphyry and medium-grained hornblende biotite granodiorite dikes, commonly altered; as much as 10 m thick, trending mostly northwest. Some rocks thermally metamorphosed. Probably related to metaporphyry in unit Kmsm Enumerated_Domain: Enumerated_Domain_Value: sserp Enumerated_Domain_Value_Definition: areas of sheared serpentinite Enumerated_Domain: Enumerated_Domain_Value: sss Enumerated_Domain_Value_Definition: areas of sheared sandstone Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: wenteanaway.aat Attribute: Attribute_Label: FID 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_Definition: Internal node number for the beginning of an arc (from-node). Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Whole numbers that are automatically generated. Attribute: Attribute_Label: TNODE# Attribute_Definition: Internal node number for the end of an arc (to-node). Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Whole numbers that are automatically generated. Attribute: Attribute_Label: LPOLY# Attribute_Definition: Internal node number for the left polygon. Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Whole numbers that are automatically generated. Attribute: Attribute_Label: RPOLY# Attribute_Definition: Internal node number for the right polygon. Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Whole numbers that are automatically generated. Attribute: Attribute_Label: 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: WENTEANAWAY# 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: WENTEANAWAY-ID Attribute_Definition: User-defined feature number. Attribute_Definition_Source: ESRI Detailed_Description: Entity_Type: Entity_Type_Label: wenteanaway.pat Attribute: Attribute_Label: FID 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_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: PERIMETER Attribute_Definition: Perimeter of feature in internal units. Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Positive real numbers that are automatically generated. Attribute: Attribute_Label: WENTEANAWAY# 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: WENTEANAWAY-ID Attribute_Definition: User-defined feature number. Attribute_Definition_Source: ESRI Attribute: Attribute_Label: PTYPE Attribute_Definition: symbol representing density of dikes in TEANAWAY DIKE SWARMÑIn the area of the Teanaway dike swarm, density of dots (on published verson of map) represents proportion of terrain underlain by dikes. Dikes are mostly dark green and brown to black basalt and diabase weathering reddish brown. Includes pale, dull holocrystalline dikes with plagioclase laths and granular clinopyroxene in intergranular texture. Interstices are filled with quartz, plagioclase, zeolite, and clays (Southwick, 1966, p. 9). Waxy, partly glassy dikes with andesine, clinopyroxene, and minor olivine; altered to chlorophaeite and devitrified glass (Southwick, 1966, p. 10-11) Attribute_Definition_Source: Author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: blank Enumerated_Domain_Value_Definition: area with less than 1% dikes Enumerated_Domain: Enumerated_Domain_Value: Ds1 Enumerated_Domain_Value_Definition: area with 1-10% dikes Enumerated_Domain: Enumerated_Domain_Value: Ds2 Enumerated_Domain_Value_Definition: area with 11-50% dikes Enumerated_Domain: Enumerated_Domain_Value: Ds3 Enumerated_Domain_Value_Definition: areas with 51-80% dikes Spatial_Data_Organization_Information: wenstructure Direct_Spatial_Reference_Method: Vector Point_and_Vector_Object_Information: SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: Entity point Point_and_Vector_Object_Count: 1277 SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: Complete chain Point_and_Vector_Object_Count: 10 SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: Point Point_and_Vector_Object_Count: 45 SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: Label point Point_and_Vector_Object_Count: 1219 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: wenstructure.pat Attribute: Attribute_Label: FID 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_Definition: Area of feature in internal units squared. Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Area is always zero for point coverages. Values are automatically generated. Attribute: Attribute_Label: PERIMETER Attribute_Definition: Perimeter of feature in internal units. Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Perimeter is always zero for point coverages. Values are automatically generated. Attribute: Attribute_Label: WENSTRUCTURE# 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: WENSTRUCTURE-ID Attribute_Definition: User-defined feature number. Attribute_Definition_Source: ESRI Attribute: Attribute_Label: PTTYPE Attribute_Definition: strike and dip of planar structures and bearing and plunge of linear structures Attribute_Definition_Source: Author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: :_l_lineation_h_ Enumerated_Domain_Value_Definition: horizontal lineation Enumerated_Domain: Enumerated_Domain_Value: _l_lineation_I_ Enumerated_Domain_Value_Definition: inclined lineation Enumerated_Domain: Enumerated_Domain_Value: approx. bedding Enumerated_Domain_Value_Definition: rough approximation of strike and dip of variable beds Enumerated_Domain: Enumerated_Domain_Value: bedding Enumerated_Domain_Value_Definition: strike and dip of bedding; top direction unknown Enumerated_Domain: Enumerated_Domain_Value: bedding w/tops Enumerated_Domain_Value_Definition: strike and dip of bedding; top direction known Enumerated_Domain: Enumerated_Domain_Value: flat bedding Enumerated_Domain_Value_Definition: horizontal bedding Enumerated_Domain: Enumerated_Domain_Value: foliation Enumerated_Domain_Value_Definition: strike and dip of aligned planar minerals in metamorphic rocks Enumerated_Domain: Enumerated_Domain_Value: ot bedding w/tops Enumerated_Domain_Value_Definition: strike and dip of overturned beds where original top of bed known; top in direction of dip number Enumerated_Domain: Enumerated_Domain_Value: vert bedding Enumerated_Domain_Value_Definition: strike of vertical bedding; top direction unknown Enumerated_Domain: Enumerated_Domain_Value: vert bedding w/tops Enumerated_Domain_Value_Definition: strike of vertical bedding; top direction known Enumerated_Domain: Enumerated_Domain_Value: vert foliation and bedding Enumerated_Domain_Value_Definition: strike of vertical foliation and parallel bedding: top direction unknown Enumerated_Domain: Enumerated_Domain_Value Enumerated_Domain_Value_Definition Enumerated_Domain: Enumerated_Domain_Value Enumerated_Domain_Value_Definition Attribute: Attribute_Label: DIP Attribute_Definition: Dip of planar structure (angle of plane to horizontal) or plunge of lineation (angle of lineation to horizontal) Attribute_Definition_Source: Author Attribute_Domain_Values: Attribute: Attribute_Label: STRIKE Attribute_Definition: Strike of planar structure (azimuth of horizontal line on plane) or azimuth of linear structure Attribute_Definition_Source: Author Attribute_Domain_Values: Detailed_Description: Entity_Type: Entity_Type_Label: wenstructure.aat Attribute: Attribute_Label: FID 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_Definition: Internal node number for the beginning of an arc (from-node). Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Whole numbers that are automatically generated. Attribute: Attribute_Label: TNODE# Attribute_Definition: Internal node number for the end of an arc (to-node). Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Whole numbers that are automatically generated. Attribute: Attribute_Label: LPOLY# Attribute_Definition: Internal node number for the left polygon. Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Whole numbers that are automatically generated. Attribute: Attribute_Label: RPOLY# Attribute_Definition: Internal node number for the right polygon. Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Whole numbers that are automatically generated. Attribute: Attribute_Label: 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: WENSTRUCTURE# 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: WENSTRUCTURE-ID Attribute_Definition: User-defined feature number. Attribute_Definition_Source: ESRI Attribute: Attribute_Label: LTYPE Attribute_Definition: type of arc Attribute_Definition_Source: Author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: map boundary Enumerated_Domain_Value_Definition: graphical boundary of map area Spatial_Data_Organization_Information: wenrocksamp2 Direct_Spatial_Reference_Method: Vector Point_and_Vector_Object_Information: SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: Entity point Point_and_Vector_Object_Count: 81 SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: Point Point_and_Vector_Object_Count: 49 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: wenrocksamp.pat Attribute: Attribute_Label: FID 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_Definition: Area of feature in internal units squared. Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Area is always zero for point coverages. Values are automatically generated. Attribute: Attribute_Label: PERIMETER Attribute_Definition: Perimeter of feature in internal units. Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Perimeter is always zero for point coverages. Values are automatically generated. Attribute: Attribute_Label: WENROCKSAMP# 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: WENROCKSAMP-ID Attribute_Definition: User-defined feature number. Attribute_Definition_Source: ESRI Attribute: Attribute_Label: PTTYPE Attribute_Definition: archival category Attribute_Definition_Source: Author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: archival Enumerated_Domain_Value_Definition: most representative sample or unusual specimen in easily retrieved archive, North Cascades National Park, Marblemount, WA Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: store Enumerated_Domain_Value_Definition: sample in boxed storage, North Cascades National Park, Marblemount, WA Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: combine Enumerated_Domain_Value_Definition: samples from same collection site both in archive and store catagories Attribute Attribute_Label: SAMPNO Attribute_Definition: Field number of sample Attribute_Definition_Source: Author Attribute: Attribute_Label: SEL Attribute_Definition: number indicating category (archival or store, etc.) and existence of thin section for sample Attribute_Definition_Source: Author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 1 Enumerated_Domain_Value_Definition: archival sample, no thin section Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 2 Enumerated_Domain_Value_Definition: archival sample with thin section Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 3 Enumerated_Domain_Value_Definition: stored sample without thin section Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 4 Enumerated_Domain_Value_Definition: stored sample with thin section Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 6 Enumerated_Domain_Value_Definition: multiple samples at collection site. Some may have thin sections (see description field below) Attribute: Attribute_Label: DESCRIPTION Attribute_Definition: additional information about sample, includes, comments on lithology, age, references, etc. For "combine" samples, identifies those with thin sections Attribute_Definition_Source: Author Attribute: Attribute_Label: UNIT Attribute_Definition: Source unit of sample Attribute_Definition_Source: Author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Camus Land sill Enumerated_Domain_Value_Definition: CAMAS LAND DIABASE OF SOUTHWICK (1966); number of samples of this unit = 1; for description see downloadable pdf of Description of Map Units: http://pubs.usgs.gov/imap/i1311/ Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Andesite of Peoh Point Enumerated_Domain_Value_Definition: ANDESITE OF PEOH POINT; number of samples of this unit = 1; for description see downloadable pdf of Description of Map Units: http://pubs.usgs.gov/imap/i1311/ Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Chumstick Formation Enumerated_Domain_Value_Definition: CHUMSTICK FORMATION; number of samples of this unit = 9; for description see downloadable pdf of Description of Map Units: http://pubs.usgs.gov/imap/i1311/ Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Ingalls Tectonic Complex Enumerated_Domain_Value_Definition: INGALLS TECTONIC COMPLEX; number of samples of this unit = 19; for description see downloadable pdf of Description of Map Units: http://pubs.usgs.gov/imap/i1311/ Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Intrusive dacite dome Enumerated_Domain_Value_Definition: MISCELLANEOUS DIKES, SILLS, AND PLUGS; number of samples of this unit = 1; for description see downloadable pdf of Description of Map Units: http://pubs.usgs.gov/imap/i1311/ Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Mount Stuart batholith Enumerated_Domain_Value_Definition: ROCKS OF THE MOUNT STUART BATHOLITH; number of samples of this unit = 3; for description see downloadable pdf of Description of Map Units: http://pubs.usgs.gov/imap/i1311/ Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Roslyn Formation Enumerated_Domain_Value_Definition: ROSLYN FORMATION; number of samples of this unit = 6; for description see downloadable pdf of Description of Map Units: http://pubs.usgs.gov/imap/i1311/ Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Swakane Biotite Gneiss Enumerated_Domain_Value_Definition: SWAKANE BIOTITE GNEISS; number of samples of this unit = 1; for description see downloadable pdf of Description of Map Units: http://pubs.usgs.gov/imap/i1311/ Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Swauk Formation Enumerated_Domain_Value_Definition: SWAUK FORMATION; number of samples of this unit = 17; for description see downloadable pdf of Description of Map Units: http://pubs.usgs.gov/imap/i1311/ Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Swauk: Manastash Formation Enumerated_Domain_Value_Definition: MANASTASH FORMATION; number of samples of this unit = 5; for description see downloadable pdf of Description of Map Units: http://pubs.usgs.gov/imap/i1311/ Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Swauk: Silver Pass (Taneum) Enumerated_Domain_Value_Definition: TANEUM ANDESITE; number of samples of this unit = 3; for description see downloadable pdf of Description of Map Units: http://pubs.usgs.gov/imap/i1311/ Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Swauk: Silver Pass Vol. Member Enumerated_Domain_Value_Definition: SILVER PASS VOLCANIC ROCKS OF FOSTER (1960); number of samples of this unit = 1; for description see downloadable pdf of Description of Map Units: http://pubs.usgs.gov/imap/i1311/ Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Teanaway Formation Enumerated_Domain_Value_Definition: TEANAWAY BASALT; number of samples of this unit = 11; for description see downloadable pdf of Description of Map Units: http://pubs.usgs.gov/imap/i1311/ Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Wenatchee Formation Enumerated_Domain_Value_Definition: WENATCHEE FORMATION; number of samples of this unit = 3; for description see downloadable pdf of Description of Map Units: http://pubs.usgs.gov/imap/i1311/ Attribute: Attribute_Label: BASEMAP Attribute_Definition: 1:100,000 scale topographic map of collection Attribute_Definition_Source: Author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: wen Enumerated_Domain_Value_Definition: Wenatchee 1:100,000 topographic map Attribute_Label: COUNTY2 Attribute_Definition: County in Washington State where sample collected Attribute_Definition_Source: Author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Chel Enumerated_Domain_Value_Definition: Chelan County Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Kitt Enumerated_Domain_Value_Definition: Kittitas County Distribution_Information: Resource_Description: Downloadable Data Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Transfer_Size: 0.038 Metadata_Reference_Information: Metadata_Date: 20050718 Distribution_Information: Distributor: Contact_Information: Contact_Person_Primary: Contact_Person: Database Coordinator Contact_Organization: U.S. Geological Survey Contact_Address: Address_Type: mailing address Address: 345 Middlefield Rd., M/S 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 Contact_Instructions: Resource_Description: USGS Miscellaneous Investigations Series I-1311 and USGS Data Series 137 consist of both traditional geologic map products and ARC/INFO format geospatial databases. Furthermore, the traditional geologic map products (map sheets and pamphlets) can be obtained either as paper or as PDF files. 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: Format_Name: Wenatchee geologic map as a PDF file Format_Specification:Adobe Acrobat Document Format_Information_Content: PDF of geologic map, correlation chart and description of map units Transfer_Size: 9.7 KB Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://pubs.usgs.gov/imap/i1311/ Digital_Form: Digital_Transfer_Information: Format_Name:accompanying pamphlet as a PDF file Format_Specification:Adobe Acrobat Document Format_Information_Content: Introduction, Acknowledgements, Summary of Geologic History, expanded description of rock units, figures including location, generalized geologic map, sources of data, and reference list Transfer_Size: 1 MB Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name http://pubs.usgs.gov/imap/i1311/ Offline_Option: Offline_Media: CD Recording_Capacity: 80 MB Recording_Format: Compatibility_Information: Digital_Form: Digital_Transfer_Information: Format_Name: wencovers.tar.gz Format_Version_Number: Format_Version_Date: 2005 Format_Specification: ARC/INFO v. 7.1.1 Format_Information_Content: 4 ARC/INFO export (.e00) files. File_Decompression_Technique: TAR and gzip (see the readme for more information about TAR and gzip). Transfer_Size: 5 MB Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://pubs.usgs.gov/imap/i1311/ Fees: No fees for digital forms of the report. Ordering_Instructions: Digital files (both PDFs and database files) can be obtained on-line as described above at the publication web-site, or by sending a request to the Database Coordinator at the address shown above. Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: USGS Information Services Contact_Address: Address_Type: mailing address Address: Box 25286, Denver Federal Center City: Denver State_or_Province: CO Postal_Code: 80225-0046 Country: USA Contact_Voice_Telephone: (303) 202-4200 Contact_Voice_Telephone: 1-888-ASK-USGS Contact_Facsimile_Telephone: (303) 202-4695 Contact_Electronic_Mail_Address: infoservices@usgs.gov Hours_of_Service: Contact_Instructions: Resource_Description: USGS Miscellaneous Investigations I-1311 and USGS Data Series 137 consist of both traditional geologic map products and ARC/INFO format geospatial databases. Furthermore, the traditional geologic map products (map sheets and pamphlets) can be obtained either as paper or as digital files. 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: Non-digital_Form: Paper copies of the map sheets and pamphlet can be obtained by contacting USGS Information Services via the contact information listed above. Metadata_Reference_Information: Metadata_Date: 20050809 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: United States Geological Survey Contact_Person: Karen L. Wheeler Contact_Address: Address_Type: 345 Middlefield Rd. MS 973 City: Menlo Park State_or_Province: California Postal_Code: 94025 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