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- Martian_soil abstract "Martian soil is the fine regolith found on the surface of Mars. Its properties can differ significantly from those of terrestrial soil. The term Martian soil typically refers to the finer fraction of regolith. On Earth, the term "soil" usually includes organic content. In contrast, planetary scientists adopt a functional definition of soil to distinguish it from rocks. Rocks generally refer to 10 cm scale and larger materials (e.g., fragments, breccia, and exposed outcrops) with high thermal inertia, with areal fractions consistent with the Viking Infrared Thermal Mapper (IRTM) data, and immobile under current eolian conditions. Consequently, rocks classify as grains exceeding the size of cobbles on the Wentworth scale. This approach enables agreement across Martian remote sensing methods that span the electromagnetic spectrum from gamma to radio waves. ‘‘Soil’’ refers to all other, typically unconsolidated, material including those sufficiently fine-grained to be mobilized by wind. Soil consequently encompasses a variety of regolith components identified at landing sites. Typical examples include: bedform armor, clasts, concretions, drift, dust, rocky fragments, and sand. The functional definition reinforces a recently proposed genetic definition of soil on terrestrial bodies (including asteroids and satellites) as an unconsolidated and chemically weathered surficial layer of fine-grained mineral or organic material exceeding centimeter scale thickness, with or without coarse elements and cemented portions.Martian dust generally connotes even finer materials than Martian soil, the fraction which is less than 30 micrometres in diameter. Disagreement over the significance of soil's definition arises due to the lack of an integrated concept of soil in the literature. The pragmatic definition "medium for plant growth" has been commonly adopted in the planetary science community but a more complex definition describes soil as "(bio)geochemically/physically altered material at the surface of a planetary body that encompasses surficial extraterrestrial telluric deposits." This definition emphasizes that soil is a body that retains information about its environmental history and that does not need the presence of life to form.".
- Martian_soil thumbnail PIA17944-MarsCuriosityRover-AfterCrossingDingoGapSanddune-20140209.jpg?width=300.
- Martian_soil wikiPageExternalLink pia16223-stereoHattah-Mastcam-br2.jpg.
- Martian_soil wikiPageExternalLink ?ImageID=6012.
- Martian_soil wikiPageExternalLink PIA16156_fig1.jpg.
- Martian_soil wikiPageExternalLink pia15116.html.
- Martian_soil wikiPageExternalLink watch?v=0t0LWFHB8Qo.
- Martian_soil wikiPageExternalLink watch?v=Jr1Xu2i-Uc0.
- Martian_soil wikiPageID "21025499".
- Martian_soil wikiPageRevisionID "606275224".
- Martian_soil align "left".
- Martian_soil caption "2012-11-18".
- Martian_soil caption "2012-11-25".
- Martian_soil direction "vertical".
- Martian_soil footer "First use of the Curiosity rover scooper as it sifts a load of sand at "Rocknest" .".
- Martian_soil footer "Locations of Opportunity and Curiosity rovers are noted .".
- Martian_soil hasPhotoCollection Martian_soil.
- Martian_soil header "Dust Storm on Mars.".
- Martian_soil image "PIA16225-MarsCuriosityRover-ScooperTest-20121008.jpg".
- Martian_soil image "PIA16226-MarsCuriosityRover-FirstScoopOfSoil-20121007.jpg".
- Martian_soil image "PIA16450-MarsDustStorm-20121118.jpg".
- Martian_soil image "PIA16454-MarsDustStorm-20121125.jpg".
- Martian_soil width "200".
- Martian_soil subject Category:Mars.
- Martian_soil subject Category:Missions_to_Mars.
- Martian_soil subject Category:Rocks_on_Mars.
- Martian_soil subject Category:Surface_features_of_Mars.
- Martian_soil subject Category:Water_and_Mars.
- Martian_soil type Abstraction100002137.
- Martian_soil type Group100031264.
- Martian_soil type Mission108403225.
- Martian_soil type MissionsToMars.
- Martian_soil type NongovernmentalOrganization108009834.
- Martian_soil type Organization108008335.
- Martian_soil type SocialGroup107950920.
- Martian_soil type YagoLegalActor.
- Martian_soil type YagoLegalActorGeo.
- Martian_soil type YagoPermanentlyLocatedEntity.
- Martian_soil comment "Martian soil is the fine regolith found on the surface of Mars. Its properties can differ significantly from those of terrestrial soil. The term Martian soil typically refers to the finer fraction of regolith. On Earth, the term "soil" usually includes organic content. In contrast, planetary scientists adopt a functional definition of soil to distinguish it from rocks.".
- Martian_soil label "Martian soil".
- Martian_soil sameAs m.05b514p.
- Martian_soil sameAs Q6774744.
- Martian_soil sameAs Q6774744.
- Martian_soil sameAs Martian_soil.
- Martian_soil wasDerivedFrom Martian_soil?oldid=606275224.
- Martian_soil depiction PIA17944-MarsCuriosityRover-AfterCrossingDingoGapSanddune-20140209.jpg.
- Martian_soil isPrimaryTopicOf Martian_soil.