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Metadata Identifier: gov.noaa.ngdc.mgg.geophysics:G01408

Aggregation Info | Bands | Citations | Constraints | Coverage Descriptions | Dimensions | Extents | Formats | Geographic Bounding Box
Georectified Information | Georeferenceable Information | Identifiers | Instruments | Mediums | OnlineResources | Operations
Platforms | Process Steps | Range Elements | Reference Systems | Responsible Parties | Series | Sources | Spatial Grids | Temporal Extents

MD_DataIdentification

Count Component Title Abstract
1 Nevada Isostatic Residual Gravity Over Basement This study of gravity data from Nevada is part of a statewide analysis of mineral resources. The main objective of the gravity study were: 1) to infer the structure and composition of the basement; 2) to determine the thickness of Cenozoic deposits. An iterative procedure based on the gravity data, a knowledge of the surface geology, and an estimate of the density of Cenozoic deposits was used to separate the isostatic residual gravity field into two component parts, a "basement" component and a "cover thickness" component. The former component contains information about the basement whereas the latter yields an estimate of the thickness of Cenozoic deposits. All computations were performed with a rectangular grid having intersections spaced at 2 km. The results are presented as contours on two maps at a scale of 1:1,000,000. Sheet 1 represents the basement gravity and sheet 2 represents the inferred thickness of Cenozoic cover. For complete details see Open File Report 90-404.
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SV_Identification

none found
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CI_Citation

Count Component Title Date Citation Identifier
1 GCMD Data Center Keywords NASA/GCMD Data Center Keywords
    1 GCMD Location Keywords NASA/GCMD Location Keywords
      1 NASA/GCMD Science Keywords NASA/Global Change Master Directory (GCMD) Earth Science Keywords
      • 2007-04
      2 Nevada Isostatic Residual Gravity Over Basement
      • 1999-01-01
      1 Uncontrolled Keywords
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        CI_Series

        none found
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        CI_ResponsibleParty

        Count Component Individual Organization Position Email Role Linkage
        2 GCMD Valids custodian http://gcmd.nasa.gov/learn/keyword_list.html
        2 Brian Meyer Brian Meyer DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce Brian.Meyer@noaa.gov pointOfContact
        1 User Services (publisher) DOC/NOAA/NESDIS/NGDC - National Geophysical Data Center User Services ngdc.info@noaa.gov publisher
        2 User Services (orginator) DOC/NOAA/NESDIS/NGDC - National Geophysical Data Center User Services ngdc.info@noaa.gov distributor
        1 DOI/USGS DOI/USGS>U.S. Geological Survey, U.S. Department of the Interior originator http://www.usgs.gov/ask/index.php
        2 GCMD User Support Office NASA GCMD User Support Office gcmduso@gcmd.gsfc.nasa.gov custodian http://gcmd.nasa.gov/MailComments/MailComments.jsf?rcpt=gcmduso
        1 NASA/GSFC/SED/ESD/GCDC/GCMD > Global Change Master Directory, Global Change Data Center, Earth Sciences Division, Science and Exploration Directorate, Goddard Space Flight Center, NASA resourceProvider http://gcmd.gsfc.nasa.gov/Resources/valids/archives/keyword_list.html
        1 Susan Mclean Susan McLean DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce Susan.McLean@noaa.gov pointOfContact
        1 Susan Mclean (processor) Susan McLean DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce Susan.McLean@noaa.gov processor
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        CI_OnlineResource

        Count Component Linkage Name Description Function
        1 http://gcmd.gsfc.nasa.gov/Resources/valids/archives/keyword_list.html GCMD Keywords, Version 6.0.0.0.0 Thesuarus for earth science keywords and associated directories hosted and maintained by NASA. information
        2 http://gcmd.nasa.gov/MailComments/MailComments.jsf?rcpt=gcmduso GCMD Feedback Form Have a Comment for the GCMD? information
        2 GCMD Keyword Page http://gcmd.nasa.gov/learn/keyword_list.html GCMD Keywords Page This page describes the NASA GCMD Keywords, how to reference those keywords and provides download instructions. information
        1 http://www.ngdc.noaa.gov/mgg/fliers/se-0703.html
        1 http://www.ngdc.noaa.gov/mgg/gravity/1999/document/html/tablegri.html
        1 http://www.ngdc.noaa.gov/mgg/gravity/1999cd.html
        1 http://www.usgs.gov/ask/index.php
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        MD_Identifier or RS_Identifier

        none found
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        EX_Extent

        Bounding Box Temporal Extent
        Count Component Description West East North South Start End
        1 -119.88589 -113.68784 42.02947 34.92191
        1
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        EX_GeographicBoundingBox

        Count Component West East North South
        1 -119.88589 -113.68784 42.02947 34.92191
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        EX_TemporalExtent

        Count Component Start End
        2
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        MD_Format

        Count Component Name Version specification
        1 Binary
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        MD_Medium

        Count Component Name mediumFormat mediumNote
        1 cdRom iso9660 iso9660
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        MD_Constraints

        Count Component Use Limitation
        1 NOAA Disclaimer While every effort has been made to ensure that these data are accurate and reliable within the limits of the current state of the art, NOAA cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty.
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        MD_ReferenceSystem

        none found
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        MD_GridSpatialRepresentation

        Count Component Number of Dimensions Cell Geometry Code
        1 2 area
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        MD_Georeferenceable or MI_Georeferenceable

        none found
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        MD_Georectified or MI_Georectified

        none found
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        MD_Dimension

        Count Component Name Code Size
        1 row 394
        1 column 269
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        MD_CoverageDescription or MI_CoverageDescription

        Count Component Attribute Description Content Type
        1
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        MD_Band or MI_Band

        Count Component Identifier Descriptor
        1 Gravity grid value Value, in milligals of an observed gravity station value, after various corrections have been applied to the value.
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        MI_RangeElementDescription

        none found
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        MD_AggregateInformation

        none found
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        LE_Source or LI_Source

        Count Component Title Date Description
        1 Nevada Isostatic Residual Gravity Over Basement Source Contribution: Gridded gravity data Source Type: varies
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        LE_ProcessStep or LI_ProcessStep

        Count Component DateTime Description
        1 All data were processed by the source before being forwarded to the National Geophysical Data Center
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        MI_Operation

        none found
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        MI_Platform

        none found
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        MI_Instrument

        none found
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