skip to content
THE EROSION ON THE LUNAR SURFACE. Preview this item
ClosePreview this item
Checking...

THE EROSION ON THE LUNAR SURFACE.

Author: Zdenek Kopal; BOEING SCIENTIFIC RESEARCH LABS SEATTLE WASH MATHEMATICS RESEARCH LAB.
Publisher: Ft. Belvoir Defense Technical Information Center JUL 1968.
Edition/Format:   Print book : EnglishView all editions and formats
Summary:
High-resolution photographs of the lunar surface obtained by the U.S. Lunar Orbiter Satellites in 1966-1967 have revealed the concentration, in many regions, of boulders between 1-20 m. in size, with a fairly sharp frequency cutoff above this limit (due probably to finite rock strength). Such boulder fields are found, in particular, to abound on the tops of small domes (well evidenced, for instance, on the floor of  Read more...
Rating:

(not yet rated) 0 with reviews - Be the first.

Subjects
More like this

 

Find a copy in the library

&AllPage.SpinnerRetrieving; Finding libraries that hold this item...

Details

Document Type: Book
All Authors / Contributors: Zdenek Kopal; BOEING SCIENTIFIC RESEARCH LABS SEATTLE WASH MATHEMATICS RESEARCH LAB.
OCLC Number: 227510257
Description: 46 pages

Abstract:

High-resolution photographs of the lunar surface obtained by the U.S. Lunar Orbiter Satellites in 1966-1967 have revealed the concentration, in many regions, of boulders between 1-20 m. in size, with a fairly sharp frequency cutoff above this limit (due probably to finite rock strength). Such boulder fields are found, in particular, to abound on the tops of small domes (well evidenced, for instance, on the floor of the crater Copernicus), but occur also in flatlands. This new evidence--combined with out present knowledge of the bearing strength of the lunar surface disclosed by the soft-landers--shows that such boulders could not have been deposited in their present exposed positions by any kind of impacts (including the secondary or tertiary ones); for any boulders impacting with a velocity of the order of 100 m/sec or greater would have penetrated under the surface to a depth equal to many times the actual dimensions of the impacta. It appears, therefore, almost inevitable that the boulders we see now (particularly in lunar flatlands) must have been gradually exhumed from their original underground locations by mechanical erosion processes (principally moonquakes triggered by primary impacts). (Author).

Reviews

User-contributed reviews
Retrieving GoodReads reviews...
Retrieving DOGObooks reviews...

Tags

Be the first.
Confirm this request

You may have already requested this item. Please select Ok if you would like to proceed with this request anyway.

Linked Data


Primary Entity

<http://www.worldcat.org/oclc/227510257> # THE EROSION ON THE LUNAR SURFACE.
    a schema:CreativeWork, schema:Book ;
   library:oclcnum "227510257" ;
   library:placeOfPublication <http://experiment.worldcat.org/entity/work/data/15925477#Place/ft_belvoir> ; # Ft. Belvoir
   library:placeOfPublication <http://id.loc.gov/vocabulary/countries/vau> ;
   schema:about <http://experiment.worldcat.org/entity/work/data/15925477#Topic/moon> ; # (Moon
   schema:about <http://experiment.worldcat.org/entity/work/data/15925477#Topic/high_speed_photography> ; # High speed photography
   schema:about <http://experiment.worldcat.org/entity/work/data/15925477#Topic/theory> ; # Theory
   schema:about <http://experiment.worldcat.org/entity/work/data/15925477#Topic/photointerpretation> ; # Photointerpretation
   schema:about <http://experiment.worldcat.org/entity/work/data/15925477#Topic/erosion> ; # Erosion)
   schema:about <http://experiment.worldcat.org/entity/work/data/15925477#Topic/lunar_probes> ; # Lunar probes
   schema:about <http://experiment.worldcat.org/entity/work/data/15925477#Topic/scientific_satellites> ; # Scientific satellites
   schema:about <http://experiment.worldcat.org/entity/work/data/15925477#Topic/astrophysics> ; # Astrophysics
   schema:about <http://experiment.worldcat.org/entity/work/data/15925477#Topic/rock> ; # Rock
   schema:about <http://experiment.worldcat.org/entity/work/data/15925477#Topic/soft_landings> ; # Soft landings
   schema:about <http://experiment.worldcat.org/entity/work/data/15925477#Topic/resolution> ; # Resolution
   schema:about <http://experiment.worldcat.org/entity/work/data/15925477#Topic/velocity> ; # Velocity
   schema:about <http://experiment.worldcat.org/entity/work/data/15925477#Topic/lunar_trajectories> ; # Lunar trajectories
   schema:bookFormat bgn:PrintBook ;
   schema:contributor <http://experiment.worldcat.org/entity/work/data/15925477#Person/kopal_zdenek> ; # Zdenek Kopal
   schema:contributor <http://experiment.worldcat.org/entity/work/data/15925477#Organization/boeing_scientific_research_labs_seattle_wash_mathematics_research_lab> ; # BOEING SCIENTIFIC RESEARCH LABS SEATTLE WASH MATHEMATICS RESEARCH LAB.
   schema:datePublished "1968" ;
   schema:datePublished "JUL 1968" ;
   schema:description "High-resolution photographs of the lunar surface obtained by the U.S. Lunar Orbiter Satellites in 1966-1967 have revealed the concentration, in many regions, of boulders between 1-20 m. in size, with a fairly sharp frequency cutoff above this limit (due probably to finite rock strength). Such boulder fields are found, in particular, to abound on the tops of small domes (well evidenced, for instance, on the floor of the crater Copernicus), but occur also in flatlands. This new evidence--combined with out present knowledge of the bearing strength of the lunar surface disclosed by the soft-landers--shows that such boulders could not have been deposited in their present exposed positions by any kind of impacts (including the secondary or tertiary ones); for any boulders impacting with a velocity of the order of 100 m/sec or greater would have penetrated under the surface to a depth equal to many times the actual dimensions of the impacta. It appears, therefore, almost inevitable that the boulders we see now (particularly in lunar flatlands) must have been gradually exhumed from their original underground locations by mechanical erosion processes (principally moonquakes triggered by primary impacts). (Author)."@en ;
   schema:exampleOfWork <http://worldcat.org/entity/work/id/15925477> ;
   schema:inLanguage "en" ;
   schema:name "THE EROSION ON THE LUNAR SURFACE."@en ;
   schema:productID "227510257" ;
   schema:publication <http://www.worldcat.org/title/-/oclc/227510257#PublicationEvent/ft_belvoirdefense_technical_information_centerjul_1968> ;
   schema:publisher <http://experiment.worldcat.org/entity/work/data/15925477#Agent/defense_technical_information_center> ; # Defense Technical Information Center
   wdrs:describedby <http://www.worldcat.org/title/-/oclc/227510257> ;
    .


Related Entities

<http://experiment.worldcat.org/entity/work/data/15925477#Agent/defense_technical_information_center> # Defense Technical Information Center
    a bgn:Agent ;
   schema:name "Defense Technical Information Center" ;
    .

<http://experiment.worldcat.org/entity/work/data/15925477#Organization/boeing_scientific_research_labs_seattle_wash_mathematics_research_lab> # BOEING SCIENTIFIC RESEARCH LABS SEATTLE WASH MATHEMATICS RESEARCH LAB.
    a schema:Organization ;
   schema:name "BOEING SCIENTIFIC RESEARCH LABS SEATTLE WASH MATHEMATICS RESEARCH LAB." ;
    .

<http://experiment.worldcat.org/entity/work/data/15925477#Person/kopal_zdenek> # Zdenek Kopal
    a schema:Person ;
   schema:familyName "Kopal" ;
   schema:givenName "Zdenek" ;
   schema:name "Zdenek Kopal" ;
    .

<http://experiment.worldcat.org/entity/work/data/15925477#Topic/high_speed_photography> # High speed photography
    a schema:Intangible ;
   schema:name "High speed photography"@en ;
    .

<http://experiment.worldcat.org/entity/work/data/15925477#Topic/lunar_trajectories> # Lunar trajectories
    a schema:Intangible ;
   schema:name "Lunar trajectories"@en ;
    .

<http://experiment.worldcat.org/entity/work/data/15925477#Topic/photointerpretation> # Photointerpretation
    a schema:Intangible ;
   schema:name "Photointerpretation"@en ;
    .

<http://experiment.worldcat.org/entity/work/data/15925477#Topic/scientific_satellites> # Scientific satellites
    a schema:Intangible ;
   schema:name "Scientific satellites"@en ;
    .


Content-negotiable representations

Close Window

Please sign in to WorldCat 

Don't have an account? You can easily create a free account.