Identification_Information: Citation: Citation_Information: Originator: Janet Slate Originator: Margaret Berry Originator: Chris Menges Publication_Date: 2008 Title: Surficial Geologic Map of the Death Valley Junction 30 x 60-minute Quadrangle, California and Nevada Edition: 1.0 Geospatial_Data_Presentation_Form: map Series_Information: Series_Name: Scientific Investigations Map Issue_Identification: SIM 3013 Publication_Information: Publication_Place: Denver, Colorado Publisher: U.S. Geological Survey Online_Linkage: http://pubs.usgs.gov/sim/3013 Description: Abstract: This surficial geologic map of the Death Valley Junction 30 x 60-minute quadrangle is compiled digitally at 1:100,000 scale. The map area covers the central part of Death Valley and adjacent mountain ranges: the Panamint Range on the west and the Funeral Mountains on the east, as well as some of the Amargosa Desert, the Spring Mountains and Pahrump Valley. The map compilation presents new polygon (geologic map unit contacts) and line (fault and fold axis) data for Death Valley and vicinity, Inyo County, California, and Nye County, Nevada. The bedrock of the mountain ranges is depicted as a single but unmapped unit. This geologic map augments and extends previous regional surficial geologic mapping of parts of the same area (Hunt and Mabey, 1966; Wright and Troxel, 1993; Workman and others, 2002) by providing updated and(or) more detailed Quaternary geology, and improved GIS datasets. Purpose: The primary purpose of this updated geologic framework is to aid interpretation of ground-water flow through Death Valley. The Nevada Test Site (NTS), north of the mapped quadrangle, is centrally located within the area of the Death Valley regional groundwater-flow system of southwestern Nevada and adjacent California. Supplemental_Information: DATASETS INCLUDED IN THIS GEOSPATIAL DATABASE: DVJ100KQ.MDB dvjQ_poly - geologic unit polygons dvjQ_arc - geologic unit contacts dvjQ_faults - geologic faults dvjQ_folds - geologic folds Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2008 Currentness_Reference: publication date Status: Progress: complete Maintenance_and_Update_Frequency: none Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -117.0 East_Bounding_Coordinate: -116.0 North_Bounding_Coordinate: 36.50 South_Bounding_Coordinate: 36.0 Keywords: Theme: Theme_Keyword_Thesaurus: AGI Glossary of Geology Theme_Keyword: Geologic map Theme_Keyword: surficial Theme_Keyword: Quaternary Theme_Keyword: alluvial fan Theme_Keyword: Death Valley-Furnace Creek fault Theme_Keyword: terrestrial cosmogenic-nuclide (TCN) 36Cl depth-profile dating Place: Place_Keyword_Thesaurus: none Place_Keyword: USA Place_Keyword: California Place_Keyword: Nevada Place_Keyword: Inyo County Place_Keyword: Nye County Place_Keyword: Death Valley Place_Keyword: Panamint Range Place_Keyword: Funeral Mountains Place_Keyword: Black Mountains Place_Keyword: Amargosa Desert Place_Keyword: Amargosa Valley Place_Keyword: Spring Mountains Place_Keyword: Pahrump Valley Place_Keyword: Stewart Valley Place_Keyword: Devils Hole Place_Keyword: Nevada Test Site Place_Keyword: Yucca Mountain Place_Keyword: Hanaupah Canyon Place_Keyword: Chuckwalla Canyon Place_Keyword: Tule Spring Place_Keyword: Mormon Point Place_Keyword: Pahrump Place_Keyword: Death Valley Junction Place_Keyword: Death Valley National Park Stratum: Stratum_Keyword_Thesaurus: none Stratum_Keyword: alluvium Stratum_Keyword: alluvial Stratum_Keyword: playa Stratum_Keyword: colluvium Stratum_Keyword: eolian Stratum_Keyword: lacustrine Stratum_Keyword: marl Access_Constraints: none Use_Constraints: 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 1:100,000. Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Janet Slate Contact_Organization: U.S. Geological Survey Contact_Address: Address_Type: mailing Address: P.O. Box 25046, MS 980 Denver Federal Center City: Denver State_or_Province: CO Postal_Code: 80225-0046 Country: USA Contact_Voice_Telephone: 303-236-1284 Contact_Facsimile_Telephone: 303-236-5349 Contact_Electronic_Mail_Address: jslate@usgs.gov Native_Data_Set_Environment: Windows_NT, 5.1, Intel ArcInfo version 9.2 Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: Data were entered and checked by the geologist that made the field observations. 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 attribute accuracy, a color check plot was visually compared to the geologist's original compilation. Discrepancies between the digital geospatial dataset and the original analog or digital 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 lead author and by the GIS technician(s) that 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 at least one other geologist 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 the compilation scale of 1:24,000 were eliminated or generalized. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: Contacts of surficial units were mapped using 1:80,000-scale diapositive-film air photos. Digital files of the contacts were made using a computerized photogrammetric mapping system that consists of Carl Zeiss Inc. VrOneŽ software and a digital Kern model PG-2 stereoplotter, at a horizontal accuracy of 3 meters. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: Hunt, C.B. Originator: Mabey, D.R. Title: Stratigraphy and structure, Death Valley, California Publication_Date: 1966 Series_Information: Series_Name: U.S. Geological Survey Professional Paper Issue_Identification: 494-A Source_Scale_Denominator: 96000 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1966 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Hunt and Mabey (1966) Source_Contribution: geologic compilation Source_Information: Source_Citation: Citation_Information: Originator: Workman, J.B. Originator: Menges, C.M. Originator: Page, W.R. Originator: Taylor, E.M. Originator: Ekren, E.B. Originator: Rowley, P.D. Originator: Dixon, G.L. Originator: Thompson, R.A. Originator: Wright, L.A. Title: Geologic map of the Death Valley ground-water model area, Nevada and California Publication_Date: 2002 Series_Information: Series_Name: U.S. Geological Survey Miscellaneous Field Studies Map Issue_Identification: MF-2381-A Source_Scale_Denominator: 250000 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2002 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Workman and others (2002) Source_Contribution: geologic compilation Source_Information: Source_Citation: Citation_Information: Originator: Wright, L.A. Originator: Troxel, B.W. Title: Geologic map of the central and northern Funeral Mountains and adjacent areas, Death Valley region, southern California Publication_Date: 1993 Series_Information: Series_Name: U.S. Geological Survey Miscellaneous Investigations Series Map Issue_Identification: I-2305 Source_Scale_Denominator: 48000 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1993 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Wright and Troxel (1993) Source_Contribution: geologic compilation Process_Step: Process_Date: 2007 Process_Description: Contacts of surficial units were mapped using 1:80,000-scale diapositive-film air photos, which have significantly better resolution than paper prints at the same scale. Digital files of the contacts were made using a computerized photogrammetric mapping system that consists of Carl Zeiss Inc. VrOneŽ software and a digital Kern model PG-2 stereoplotter. A stereo pair of air photos was mounted on the PG-2 and scaled to the map base. The 1:24,000 digital topographic base came from DOQ (digital orthophoto quad) files. Process_Step: Process_Date: 2008 Process_Description: Merged and dissolved desired unit polygons for Quaternary geology, and added supplemental faults to database. Quality checked feature attributes and topology. Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Grid_Coordinate_System: Grid_Coordinate_System_Name: Universal Transverse Mercator Universal_Transverse_Mercator: UTM_Zone_Number: 11 Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.9996 Longitude_of_Central_Meridian: -117.0 Latitude_of_Projection_Origin: 0.0 False_Easting: 500000 False_Northing: 0 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 0.0020401094628 Ordinate_Resolution: 0.0020401094628 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: FEATURE CLASSES: dvjQ_poly dvjQ_arc dvjQ_faults dvjQ_folds UNIT-abbreviated map unit symbol DESCRIPTION-brief geologic explanation of rock unit AGE-geologic age of rock unit UNIT DESCRIPTION AGE QTa Oldest alluvial deposits middle Pleistocene to Pliocene? QTc Colluvium Holocene to Pliocene QTm Marl deposits Pleistocene and Pliocene Qai Younger intermediate alluvial deposits late and late-middle Pleistocene Qao Older deposits late? to early Pleistocene Qay Young alluvial deposits Holocene Qayo Young alluvial deposits, older part middle and early Holocene Qayy Young alluvial deposits, younger part late Holocene Qe Eolian sand deposits Holocene Qlb Lacustrine beach deposits late and late-middle Pleistocene Qp Playa deposits Holocene Qps Saline playa deposits Holocene Qpx Inactive playa deposits Holocene DESCRIPTION-description of line features, using digital cartographic standards DESCRIPTION Contact - Certain Map boundary DESCRIPTION-description of line features, using digital cartographic standards DESCRIPTION Fault - Certain Fault - Approximately located DESCRIPTION-description of line features, using digital cartographic standards DESCRIPTION Anticline - Certain Entity_and_Attribute_Detail_Citation: none Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Address: Address_Type: mailing address Address: Denver Publishing Service Network Address: U.S. Geological Survey Address: MS 902, Box 25046 DFC City: Denver State_or_Province: CO Postal_Code: 80225-0046 Contact_Voice_Telephone: 303-236-5486 Distribution_Liability: This database, identified as SIM 3013, 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 materials 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. Government. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: File_Decompression_Technique: GZIP compressed TAR file (Unix), ZIP archive (Windows) Format_Name: ArcGIS Geodatabase, Shapefile Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://pubs.usgs.gov/sim/3013 Fees: none 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: 303-236-5589 Distribution_Liability: This database, identified as SIM 3013, 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 materials 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. Government. Standard_Order_Process: Non-digital_Form: Available as one printed sheet and text pamphlet. Order from USGS at the address listed above or see http://store.usgs.gov/public/mod/order.html for more ordering information. Fees: for current charges please see http://store.usgs.gov/public/mod/order.html Metadata_Reference_Information: Metadata_Date: 2008 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: Paco VanSistine Contact_Address: Address_Type: mailing and physical address Address: Denver Federal Center MS-980 City: Denver State_or_Province: CO Postal_Code: 80225 Country: USA Contact_Voice_Telephone: 303-236-5452 Contact_Electronic_Mail_Address: dsistine@usgs.gov Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata ("CSDGM version 2") Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Access_Constraints: none Metadata_Use_Constraints: none