Identification_Information: Citation: Citation_Information: Originator: Ren A. Thompson Originator: Ralph R. Shroba Originator: Christopher Menges Originator: Dwight L. Schmidt Originator: Stephen F. Personius Originator: Theodore R. Brandt Publication_Date: 2009 Title: Geologic Map of The Volcanoes Quadrangle, Bernalillo and Sandoval Counties, New Mexico Edition: version 1.0 Geospatial_Data_Presentation_Form: map Series_Information: Series_Name: USGS Scientific Investigations Map Issue_Identification: SIM 3083 Publication_Information: Publication_Place: Denver, Colorado, U.S.A. Publisher: United States Geological Survey Online_Linkage: http://pubs.usgs.gov/sim/3083/ Description: Abstract: Geologic mapping, in support of the USGS Middle Rio Grande Basin Geologic Mapping Project, shows the spatial distribution of surficial deposits, lava flows and related sediments of the Albuquerque volcanoes, upper Santa Fe Group sediments, faults, and fault-related structural features. These deposits are on, along, and beneath the Llano de Albuquerque (West Mesa) west of Albuquerque, New Mexico. Some of these deposits are in the western part of Petroglyph National Monument. Artificial fill deposits are mapped chiefly beneath and near the City of Albuquerque Soil Amendment Facility and the Double Eagle II Airport. Alluvial deposits were mapped in and along stream channels, beneath terrace surfaces, on the Llano de Albuquerque and its adjacent hill slopes. Deposits composed of alluvium and colluvium are also mapped on hill slopes. Wedge-shaped deposits composed chiefly of sandy sheetwash deposits, eolian sand, and intercalated calcic soils have formed on the downthrown-sides of faults. Deposits of active and inactive eolian sand and sandy sheetwash deposits mantle the Llano de Albuquerque. Lava flows and related sediments of the Albuquerque volcanoes were mapped near the southeast corner of the map area. They include eleven mapped young lava flows and, where discernable, associated vent and near-vent pyroclastic deposits associated with cinder cones. Upper Santa Fe Group sediments, are chiefly fluvial in origin, and are well exposed near the western boundary of the map area. From youngest to oldest they include a gravel unit, pebbly sand unit, tan sand and mud unit, tan sand unit, tan sand and clay unit, and silty sand unit. Undivided upper Santa Fe Group sediments are mapped in the eastern part of the map area. Faults were identified on the basis of surface expression determined from field mapping and interpretation of aeromagnetic data where concealed beneath surficial deposits. Fault-related structural features are exposed and mapped near the western boundary of the map area. Purpose: To provide a digital geologic map database of the quadrangle area that improves understanding of the regional geologic framework. Supplemental_Information: Arc coverages included in this geospatial database: vrgeop: polygon coverage of geologic units and faults vrpntp: point coverage recording site-specific observations and measurements, such as strike and dip of bedding vrwellp: point coverage recording well locations, names, and total depths vrpnmbp line coverage of Petroglyph National Monument boundaries on the base map Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2009 Currentness_Reference: publication date Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -106.8750000 East_Bounding_Coordinate: -106.7500000 North_Bounding_Coordinate: 35.2500000 South_Bounding_Coordinate: 35.1250000 Keywords: Theme: Theme_Keyword_Thesaurus: American Geological Institute Glossary of Geology Theme_Keyword: Geologic map Theme_Keyword: Surficial deposits Theme_Keyword: Geologic history Theme_Keyword: Santa Fe Group Theme_Keyword: Quaternary deposits Theme_Keyword: Holocene Theme_Keyword: Pleistocene Theme_Keyword: Pliocene Theme_Keyword: Miocene Theme_Keyword: Zia fault Theme_Keyword: County Dump fault Theme_Keyword: Calabacillas fault Theme_Keyword: Albuquerque Volcanoes Theme_Keyword: Rio Grande Rift Theme_Keyword: Rift volcanism Place: Place_Keyword_Thesaurus: U.S. Board of Geographic Names (BGN) Geographic Names Information System (GNIS) Place_Keyword: USA Place_Keyword: United States of America Place_Keyword: Bernalillo County Place_Keyword: Sandoval County Place_Keyword: New Mexico Place_Keyword: Albuquerque Place_Keyword: Petroglyph National Monument Access_Constraints: None Use_Constraints: None. Users of this geospatial database and geologic information derived there from should acknowledge the U.S. Geological Survey as the source of the data. Although software enables a user to display images at various scales, map data in this report should not be used at scales greater than 1:24,000. Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Ren A. Thompson Contact_Organization: U.S. Geological Survey Contact_Address: Address_Type: mailing address Address: MS 980, Box 25046 DFC City: Denver State_or_Province: CO Postal_Code: 80225-0046 Country: USA Contact_Voice_Telephone: 303-236-0929 Contact_Facsimile_Telephone: 303-236-0214 Contact_Electronic_Mail_Address: rathomps@usgs.gov Browse_Graphic: Browse_Graphic_File_Name: http://pubs.usgs.gov/sim/3083/downloads/pdf/SIM3083_508.pdf Browse_Graphic_File_Description: graphic representation of map layout Browse_Graphic_File_Type: PDF Data_Set_Credit: Theodore Brandt, U.S. Geological Survey, served as primary author of the GIS database. Native_Data_Set_Environment: Windows_XP, Intel ArcInfo version 9.3.1 Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: Data were entered and checked by the geologist that made the field observations and compilation. The attributes of this geospatial data set consist of text identifiers and numeric codes that indicate the identity of the geologic unit or type of geologic feature, and determine how each feature is colored or symbolized. To check the attribute accuracy, a color check plot was visually compared to the geologist's original compilation. Discrepancies between the digital geospatial data set and the original analog compilation were corrected as needed. Machine-created listings of unique attribute values were used to identify spelling errors or other inconsistencies, and corrections were made as needed. Logical_Consistency_Report: Map elements were visually checked for overshoots, undershoots, duplicate features, polygon closure, and other errors by the authors and by the GIS technician(s) who created the digital database. Automated (ArcInfo) routines were also used to check the databases for polygon label errors, line or point attribution errors, sliver polygons, dangling arcs, intersection errors, and projection information. Check plots of the map were reviewed by another geologist and cartographer for consistency with basic geologic principles and general conformity to USGS mapping standards. Completeness_Report: Data are complete. No features that could be accurately represented at a scale of 1:24,000 were eliminated or generalized. The smallest area represented is approximately 150 square meters. All geospatial database elements are attributed. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: Most digitized positions on the map that depict distinct contacts between rock formations in the field are estimated to be within 20 m of the actual contact on the land in most instances. Boundaries (lines) between Quaternary units (for example, terrace gravels) that correspond closely to distinct edges of landforms (for example, river terraces) are of comparable accuracy. Boundaries (lines) between some Quaternary units, such as eolian deposits and broad alluvial aprons, are approximately located within an indefinite gradational zone between them. Horizontal positional accuracy is tested by visual comparison of hard copy test plots to source maps or comparing locations of data on a computer monitor to other data layers in the same geographic area. The database contains no elevation data. Accuracy of these digital data indirectly depends on accuracy of the base maps on which the original source geologic maps were compiled. These base maps were made by the U.S. Geological Survey, which routinely checks them for compliance with the National Map Accuracy Standards. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: Lewis, R. S. Originator: Derkey, P. D. Title: Digital geologic map of part of the Thompson Falls 1:100,000 quadrangle, Idaho Publication_Date: 1999 Series_Information: Series_Name: U.S. Geological Survey Open File Report Issue_Identification: OFR 99-438 Source_Scale_Denominator: 100000 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1999 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Lewis and Derkey (1999) Source_Contribution: GIS database structure source Process_Step: Process_Description: The geology for the map was compiled from 1996 to 1999 by Ren Thompson, Ralph Shroba, Christopher Menges, Dwight Schmidt, and Stephen Personius, all of U.S. Geological Survey. Process_Date: 1999 Process_Step: Process_Description: The geologic database was digitized, attributed and revised using ArcInfo. Process_Date: 2001 Process_Step: Process_Description: The geologic database was further attributed and revised using ArcInfo by Theodore Brandt, U.S. Geological Survey. Brandt prepared the scan of the geo-registered base map and served as author of the GIS database. Process_Date: 2009 Process_Step: Process_Description: Checkplots of the coverages were printed and checked against source materials for accuracy and completeness. The database information was checked visually, as well as by using various routines in ArcInfo, for accuracy and consistency. Process_Date: 2009 Process_Step: Process_Description: The metadata for the Geologic Map of the Volcano Ranch Quadrangle, Bernalillo Sandoval Counties, New Mexico mapping project were created by Theodore Brandt, U.S. Geological Survey. Process_Date: 2009 Process_Step: Process_Description: The metadata for the Geologic Map of the Volcano Ranch Quadrangle, Bernalillo Sandoval Counties, New Mexico mapping project were reviewed by Theodore Brandt, U.S. Geological Survey. Process_Date: 2009 Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Vector Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Map_Projection: Map_Projection_Name: Polyconic Polyconic: Latitude_of_Projection_Origin: 35.1250 Longitude_of_Central_Meridian: -106.8125 False_Easting: 0.00000 False_Northing: 0.00000 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 1.386900343593 Ordinate_Resolution: 1.386900343593 Planar_Distance_Units: Meters Geodetic_Model: Horizontal_Datum_Name: North American Datum of 1927 Ellipsoid_Name: Clarke 1866 Semi-major_Axis: 6378206.4 Denominator_of_Flattening_Ratio: 294.98 Entity_and_Attribute_Information: Overview_Description: Entity_and_Attribute_Overview: The data are supplied in ArcInfo export format, ArcView shapefile format, and ArcGIS geodatabase format. DATABASE STRUCTURE - ArcInfo ==================================== This GIS database includes related look-up tables, which store detailed attribute information. This database structure is more fully described in USGS OFR 99-438 (Lewis and Derkey, 1999). The GIS database structure used in the database includes symbol and pattern items in coverage point, polygon (PAT), and arc (AAT) attribute tables for user convenience. ArcInfo relates for each coverage are saved in a file named .rel. Use the RELATE command with the restore argument at the arc prompt to make the relates active. Alternatively, in ArcTools, use the Relate environment: open dialog in the Manage Relates flyout menu under the ArcTools menu to make the relates active. vrgeop coverage: Contains all contact lines and label points for each geologic polygon. In the .pat INFO file the SOURCE item provides a numeric code used to identify the data source for the rock unit. Complete references for the sources listed are listed in the vrgeop.ref file. The LABEL item indicates the rock unit label (abbreviation) used to label unit on map. The DESC item defines formal or informal unit name. The SYMBOL item contains the shadeset symbol number used by ArcInfo to plot a filled/shaded polygon. The symbol numbers in this item refer to the wpgcmykg.shd shadeset included with the dataset. The PATTERN item contains the pattern number used in the published version of the map. Patterns that correspond with the pattern numbers are displayed in USGS OFR 99-430. There is no ArcInfo shadeset that corresponds to these patterns. In the vrgeop.aat INFO file, the LINECODE item provides a numeric code used to identify type of linear feature. Linecodes less than 100 are used for contacts and boundaries that are described in the vrgeop.con file. Linecodes greater than 100 are used for structures that are described in the vrgeop.str file. The NAME item lists the name given to the structural feature. The SOURCE item lists the numeric code used to identify the data source for the linear feature. The SYMBOL item lists the line symbol number used by ArcInfo to plot the line (symbol numbers refer to the geol_sfo.lin lineset). Complete references for the sources are listed in the vrgeop.ref file. Related look-up table files are vrgeop.con, vrgeop.str, and vrgeop.ref. In the vrgeop.con INFO file, the LINECODE item indicates the numeric code (a value less than 100) used to identify type of contact or boundary. The SYMBOL item lists the line symbol number used by ArcInfo to plot the line (symbol numbers refer to the geol_sfo.lin lineset included with the dataset). The TYPE item lists the major type of line (for example, contact, State boundaries, lines of latitude and longitude used for neatlines). The MODIFIER item lists the line type modifier (that is, approximate, concealed, or gradational). No entry implies 'known.' The CERTAINTY item lists the degree of certainty of contact or boundary (that is, inferred or uncertain). No entry implies 'certain.' The DESC item lists the written description or explanation of the contact or boundary. In the vrgeop.str INFO file, the LINECODE item indicates the numeric code (a value greater than 100) used to identify type of structure. The SYMBOL item lists the line symbol number used by ArcInfo to plot the line (symbol numbers refer to the geol_sfo.lin lineset included with the dataset). The TYPE item lists the major type of line (for example, fault or fold-axis). The HORIZONTAL item refers to the type of horizontal fault movement (for example, left-lateral or right-lateral). No entry implies 'unknown' or no strike-slip movement. The VERTICAL item refers to the type of vertical fault movement (for example, normal). No entry implies 'unknown' or no dip-slip movement. The FOLD item refers to the type of fold (for example, anticline or syncline). The PLUNGE item refers to the type of plunge on fold (that is, horizontal, plunging, plunging in, or plunging out). The ACCURACY item refers to the line type modifier indicating degree of accuracy (that is, approximately located, concealed, gradational). No entry implies 'certain.' The CERTAINTY item lists the degree of certainty of structure (that is, inferred, uncertain). No entry implies 'certain.' The DESC item lists the written description or explanation of the structure. The INFO structure of these files is listed below: >VRGEOP.PAT: > >COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC ALTERNATE > 1 AREA 8 18 F 5 > 9 PERIMETER 8 18 F 5 > 17 VRGEOP# 4 5 B - > 21 VRGEOP-ID 4 5 B - > 25 SOURCE 4 4 I - > 29 LABEL 10 10 C - > 39 DESC 150 150 C - > 189 SYMBOL 3 3 I - > 192 PATTERN 4 4 I - >VRGEOP.AAT: > >COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC ALTERNATE NAME > 1 FNODE# 4 5 B - > 5 TNODE# 4 5 B - > 9 LPOLY# 4 5 B - > 13 RPOLY# 4 5 B - > 17 LENGTH 8 18 F 5 > 25 VRGEOP# 4 5 B - > 29 VRGEOP-ID 4 5 B - > 33 LINECODE 3 3 I - > 36 NAME 80 80 C - > 116 SOURCE 4 4 I - > 120 SYMBOL 3 3 I - >VRGEOP.CON: > >COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC ALTERNATE NAME > 1 LINECODE 3 3 I - > 4 SYMBOL 3 3 I - > 7 TYPE 10 10 C - > 17 MODIFIER 20 20 C - > 37 CERTAINTY 15 15 C - > 52 DESC 100 100 C - >VRGEOP.STR: > >COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC ALTERNATE NAME > 1 LINECODE 3 3 I - > 4 SYMBOL 3 3 I - > 7 TYPE 10 10 C - > 17 HORIZONTAL 20 20 C - > 37 VERTICAL 20 20 C - > 57 FOLD 15 15 C - > 72 PLUNGE 15 15 C - > 87 ACCURACY 15 15 C - > 102 CERTAINTY 15 15 C - > 117 DESC 100 100 C - > VRGEOP.REF: > >COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC ALTERNATE NAME > 1 SOURCE 4 4 I - > 5 SCALE 8 8 I - > 13 AUTHORS 200 200 C - > 213 YEAR 4 4 I - > 217 REFERENCE 250 250 C - vrwellp coverage: Contains points recording site-specific measurements at well locations In the vrwellp.pat INFO file, the PTTYPE item labels the points as "Well Drilled for water production and resource evaluation". The SYMBOL item lists the point symbol number used by ArcInfo to plot the point (symbol numbers refer to the geoscamp2.mrk markerset). The WELLNAME item lists the recorded name of the well. The TDFT item lists the total depth in feet of the well. . The SOURCE item lists the numeric code used to identify the data source for the point feature. Complete references for the sources are listed in the vrwellp.ref file. >VRWELLP.PAT: > >COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC ALTERNATE NAME > 1 AREA 8 18 F 5 > 9 PERIMETER 8 18 F 5 > 17 VRWELLP# 4 5 B - > 21 VRWELLP-ID 4 5 B - > 25 PTTYPE 80 80 C - > 105 SYMBOL 3 3 I - > 108 WELLNAME 80 80 C - > 188 TDFT 5 5 I - > 193 SOURCE 4 4 I - >VRWELLP.REF: > >COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC ALTERNATE NAME > 1 SOURCE 4 4 I - > 5 SCALE 8 8 I - > 13 AUTHORS 200 200 C - > 213 YEAR 4 4 I - > 217 REFERENCE 250 250 C - vrpntp coverage: Contains points recording site-specific observations and measurements, such as strike and dip of bedding In the vrpntp.pat INFO file, the PTTYPE item lists the type of point symbol (for example, strike and dip of inclined bedding). The SYMBOL item lists the marker symbol used by ArcInfo to identify the type of structural map symbol(symbol numbers refer to the geoscamp2.mrk markerset). The STRIKE item contains the strike of bedding as well as trend of fold axis, where applicable. Strike is an azimuthal angle. Measured in degrees from 0 to 360 in a clockwise direction from North, the STRIKE value also specifies the dip direction, where the dip direction is 90 degrees clockwise relative to the STRIKE. The DIP item contains the dip of bedding as well as plunge angles, where applicable. This value is an angle measured (in degrees from 0 to 90) down from the horizontal; thus a horizontal dip is 0 degrees and a vertical dip is 90 degrees. The SOURCE item lists the numeric code used to identify the data source. In the vrpntp.ref INFO file, the SOURCE item lists the numeric code used to identify the data source. The SCALE item lists the scale of the source map. (This value is the denominator of the proportional fraction that identifies the scale of the map that was digitized or scanned to produce the digital map.) The AUTHORS item lists the author(s) or compiler(s) of source map entered as last name, first name or initial, and middle initial. The YEAR item lists the source (map) publication date. The REFERENCE item lists the remainder of the reference in USGS reference format. >COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC ALTERNATE NAME > 1 AREA 8 18 F 5 > 9 PERIMETER 8 18 F 5 > 17 VRPNTP# 4 5 B - > 21 VRPNTP-ID 4 5 B - > 25 PTTYPE 80 80 C - > 105 SYMBOL 3 3 I - > 108 STRIKE 3 3 I - > 111 DIP 3 3 I - > 114 SOURCE 4 4 I - > >VRPNTP.REF: > >COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC ALTERNATE NAME > 1 SOURCE 4 4 I - > 5 SCALE 8 8 I - > 13 AUTHORS 200 200 C - > 213 YEAR 4 4 I - > 217 REFERENCE 250 250 C - vrpnmbp coverage: Contains federal reservation boundary lines for the Petroglyph National Monument boundary depicted on the base map. The administrative boundary database is derived from the U.S. Department of the Interior National Park Service administrative boundary database dated October 26, 2004. In the vrpnmbp.aat INFO file, the LINECODE item provides a numeric code used to identify type of linear feature. Linecodes less than 100 are used for contacts and boundaries that are described in the vrpnmbp.con file ). Complete references for the sources are listed in the vrgeop.ref file. In the vrpnmbp.con INFO file, the LINECODE item indicates the numeric code (a value less than 100) used to identify type of contact or boundary. The SYMBOL item lists the line symbol number used by ArcInfo to plot the line (symbol numbers refer to the lineset included with the dataset). The TYPE item lists the major type of line (for example, contact, State boundaries, lines of latitude and longitude used for neatlines). The MODIFIER item lists the line type modifier (that is, approximate, concealed, or gradational). No entry implies 'known.' The CERTAINTY item lists the degree of certainty of contact or boundary (that is, inferred or uncertain). No entry implies 'certain.' The DESC item lists the written description or explanation of the contact or boundary. The INFO structure of these files is listed below: >VRPNMBP.AAT: > >COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC ALTERNATE NAME > 1 FNODE# 4 5 B - > 5 TNODE# 4 5 B - > 9 LPOLY# 4 5 B - > 13 RPOLY# 4 5 B - > 17 LENGTH 8 18 F 5 > 25 VRPNMBP# 4 5 B - > 29 VRPNMBP-ID 4 5 B - > 33 LINECODE 3 3 I - > 36 NAME 80 80 C - > 116 SOURCE 4 4 I - > 120 SYMBOL 3 3 I - >VRPNMBP.CON: > >COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC ALTERNATE NAME > 1 LINECODE 3 3 I - > 4 SYMBOL 3 3 I - > 7 TYPE 10 10 C - > 17 MODIFIER 20 20 C - > 37 CERTAINTY 15 15 C - > 52 DESC 100 100 C - > VRPNMBP.REF: > >COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC ALTERNATE NAME > 1 SOURCE 4 4 I - > 5 SCALE 8 8 I - > 13 AUTHORS 200 200 C - > 213 YEAR 4 4 I - > 217 REFERENCE 250 250 C - vrhlsd grid: Contains hillshade values derived from U.S. Geological Survey National Elevation Dataset (NED) 10 meter resolution elevation data. The grid's projection is the same polyconic NAD27 datum projection used for the geologic database coverages. The illumination angle for the hillshade's shaded relief grid was generated at an azimuth of 315 degrees and horizon angle of 45 degrees. In the integer grid's vrhlsd.vat INFO file, the VALUE item lists integer values that describe the illumination level of a cell or group of cells forming a zone. The COUNT item list the number of cells in a zone. In the grid's vrhlsd.sta INFO file, the MIN item contains the minimum value, the MAX item contains the maximum value, the MEAN item contain the average value, and the STDV item contains the standard deviation. >VRHLSD.VAT > >COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC ALTERNATE NAME > 1 VALUE 4 10 B - > 5 COUNT 4 10 B - >VRHLSD.STA > >COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC ALTERNATE NAME > 1 MIN 8 15 F 3 > 9 MAX 8 15 F 3 > 17 MEAN 8 15 F 3 > 25 STDV 8 15 F 3 >Coding of LABEL and DESC attributes in the vrgeop coverage: >LABEL | DESC >QTa | Old alluvium and calcic soils of the Llano de Albuquerque (early Pleistocene? and Pliocene) >QTs | Old sheetwash deposits, eolian sand, and calcic soils associated with fault scarps (early? Pleistocene and Pliocene?) >Qa | Alluvium in stream channels and low-terrace deposits (Holocene) >Qaa | Alluvium in stream channels, low-terrace deposits, and young alluvial-slope deposits, undivided (Holocene and late Pleistocene) >Qac | Alluvium and colluvium, undivided (Holocene and late Pleistocene) >Qac/Tg | Alluvium and colluvium, undivided (Holocene and late Pleistocene) over gravel unit of the upper Santa Fe Group sediments (Pliocene) >Qac/Ts | Alluvium and colluvium, undivided (Holocene and late Pleistocene) over upper Santa Fe Group sediments, undivided (Pliocene) >Qao | Old alluvial-slope deposits (late and middle? Pleistocene) >Qay | Young alluvial-slope deposits (Holocene and late Pleistocene) >Qby1 | Lava flow unit 1 (middle Pleistocene) >Qby10 | Lava flow unit 10 (middle Pleistocene) >Qby11 | Lava flow unit 11 (middle Pleistocene) >Qby11 | Lava flow unit 11 with interbedded near-vent pyroclastic deposits(middle Pleistocene) >Qby2 | Lava flow unit 2 (middle Pleistocene) >Qby3 | Lava flow unit 3 (middle Pleistocene) >Qby4 | Lava flow unit 4 (middle Pleistocene) >Qby5 | Lava flow unit 5 (middle Pleistocene) >Qby6 | Lava flow unit 6 (middle Pleistocene) >Qby7 | Lava flow unit 7 (middle Pleistocene) >Qby8 | Lava flow unit 8 (middle Pleistocene) >Qby9 | Lava flow unit 9 (middle Pleistocene) >Qe | Active and inactive eolian sand and sheetwash deposits, undivided (Holocene and late Pleistocene?) >Qea | Active eolian sand (Holocene) >Qes | Inactive eolian sand and sheetwash deposits, undivided (Holocene and late Pleistocene) >Qsw | Sheetwash deposits (Holocene and late? Pleistocene) >Qsw/Qao | Sheetwash deposits (late and middle? Pleistocene) over old alluvial-slope deposits >Qsw/Qby1 | Sheetwash deposits (middle Pleistocene) over young lava flow unit 1 >Qt | Terrace alluvium (Holocene and late Pleistocene) >Tg | Gravel unit of the upper Santa Fe Group sediments (Pliocene) >Tps | Pebbly sand unit of the upper Santa Fe Group sediments (Pliocene and Miocene) >Ts | Upper Santa Fe Group sediments, undivided (Pliocene) >Tsa | Tan sand unit of the upper Santa Fe Group sediments (upper Miocene) >Tsc | Tan sand and clay unit of the upper Santa Fe Group sediments (upper and middle Miocene) >Tsm | Tan sand and mud unit of the upper Santa Fe Group sediments (upper Miocene) >Tss | Silty sand unit of the upper Santa Fe Group sediments (upper and middle Miocene) >af | Artificial fill deposits (latest Holocene) >Coding of LINECODE and NAME attributes in the vrgeop coverage: >LINECODE | NAME >1 | Contact - Certain >3 | Contact - Concealed >63 | Key bed - Certain (lower paleosol in unit Tsa) >63 | Key bed - Certain (intermediate paleosol in unit Tsa) >63 | Key bed - Certain (upper paleosol in unit Tsa) >63 | Key bed - Certain (tan sand in unit Tg) >64 | Rim of volcanic crater - Certain >65 | Flow boundary within lava flow unit >81 | Map boundary >111 | Normal fault - Certain >112 | Normal fault - Approximately located >113 | Normal fault - Concealed >401 | Anticline - Certain >402 | Anticline - Approximately located >413 | Syncline - Certain >415 | Syncline - Concealed >425 | Monocline - Certain >426 | Monocline - Approximately located >427 | Monocline - Concealed >506 | Basalt dike associated with lava flow unit 7 >518 | Normal fault - Located by aeromagnetic survey >595 | Flow direction of lava flow unit >Coding of PTTYPE attributes in the vrpntp coverage: >PTTYPE >Dry hole - Unsuccessful hole drilled during hydrocarbon exploration >Fault attitude - Showing strike and dip >Fault attitude - Showing strike and dip >Fluvial transport direction >Horizontal bedding >Inclined bedding - Showing strike and dip Auxiliary files: geoscamp2.mrk: This markerset file defines geologic markers in the geologically themed coverages. geol_sfo.lin: This lineset file defines geologic line types in the geologically themed coverages. wpgcmykg.shd: This shadeset file defines the cmyk values of colors assigned to polygons in the geologically themed coverages. volranr.tif: A geo-registered raster file of the USGS Volcano Ranch, New Mexico 1:24,000 scale base map. SIM3083_508.pdf: A print-optimized file for viewing and printing a graphics version of the map and accessory elements using Adobe Acrobat viewing software (version 9.0). Entity_and_Attribute_Detail_Citation: http://wrgis.wr.usgs.gov/open-file/of99-438/ Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Address: Address_Type: mailing address Address: USGS Information Services Address: Box 25286 Address: Denver Federal Center City: Denver State_or_Province: CO Postal_Code: 80225 Country: USA Contact_Voice_Telephone: 1-(888)-ASK-USGS Contact_Electronic_Mail_Address: http://ask.usgs.gov Resource_Description: Scientific Investigations Map 3083 Distribution_Liability: This database, identified as SIM3083, has been approved for release and publication by the Director of the USGS. Although this database 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. Although these data have been processed successfully on a computer system at the U.S. Geological Survey, no warranty, expressed or implied is made regarding the display or utility of the data on any other system, or for general or scientific purposes, nor shall the act of distribution constitute such warranty. The U.S. Geological Survey shall not be held liable for improper or incorrect use of the data described and/or contained herein. Although this information product, for the most part, is in the public domain, it also contains copyrighted material as noted in the text. Permission to reproduce copyrighted items for other than personal use must be secured from the copyright owner. Any use of trade, product or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Geological Survey. Standard_Order_Process: Non-digital_Form: Available as one printed sheet. Order from USGS at the address listed above or see for more ordering information. Fees: For current prices of USGS information products, please see http:// store.usgs.gov /mod/order.html. Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Address: Address_Type: mailing address Address: USGS Information Services Address: Box 25286 Address: Denver Federal Center City: Denver State_or_Province: CO Postal_Code: 80225-0046 Contact_Voice_Telephone: 1-(888)-ASK-USGS Contact_Electronic_Mail_Address: http://ask.usgs.gov Resource_Description: Scientific Investigations Map 3083 Distribution_Liability: This database, identified as SIM3083, has been approved for release and publication by the Director of the USGS. Although this database 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. Although these data have been processed successfully on a computer system at the U.S. Geological Survey, no warranty, expressed or implied is made regarding the display or utility of the data on any other system, or for general or scientific purposes, nor shall the act of distribution constitute such warranty. The U.S. Geological Survey shall not be held liable for improper or incorrect use of the data described and/or contained herein. Although this information product, for the most part, is in the public domain, it also contains copyrighted material as noted in the text. Permission to reproduce copyrighted items for other than personal use must be secured from the copyright owner. Any use of trade, product or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Geological Survey. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: ARCE,SHP Format_Version_Number: 9.2 Format_Version_Date: 2007 File_Decompression_Technique: In Windows, use WinZip (http://www.winzip.com/) or other programs to extract the file. Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://pubs.usgs.gov/sim/3083/ Fees: none Metadata_Reference_Information: Metadata_Date: 2009 Metadata_Review_Date: 2009 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Theodore Brandt Contact_Organization: U.S. Geological Survey Contact_Address: Address_Type: mailing address Address: U.S. Geological Survey Address: MS 980, Box 25046 Denver Federal Center City: Denver State_or_Province: CO Postal_Code: 80225-0046 Contact_Voice_Telephone: 303-236-1901 Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998