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  2. Geology of solar terrestrial planets - Wikipedia

    en.wikipedia.org/wiki/Geology_of_solar...

    [7] [9] [10] Individual massifs are typically 30 kilometres (19 mi) to 50 kilometres (31 mi) long; the inner edge of the unit is marked by basin-facing scarps. [10] Lineated terrain extends for about 1,000 kilometres (621 mi) out from the foot of a weak discontinuous scarp on the outer edge of the Caloris mountains; this terrain is similar to ...

  3. Earth system science - Wikipedia

    en.wikipedia.org/wiki/Earth_system_science

    Geosphere – Collective name for the lithosphere, the hydrosphere, the cryosphere, and the atmosphere; Global change – planetary-scale changes in the Earth system; Planetary boundaries – Limits not to be exceeded if humanity wants to survive in a safe ecosystem

  4. Earth science - Wikipedia

    en.wikipedia.org/wiki/Earth_science

    Earth science or geoscience includes all fields of natural science related to the planet Earth. [1] This is a branch of science dealing with the physical, chemical, and biological complex constitutions and synergistic linkages of Earth's four spheres: the biosphere , hydrosphere / cryosphere , atmosphere , and geosphere (or lithosphere ).

  5. Laurentia - Wikipedia

    en.wikipedia.org/wiki/Laurentia

    Laurentia basement rocks. Laurentia or the North American Craton is a large continental craton that forms the ancient geological core of North America.Many times in its past, Laurentia has been a separate continent, as it is now in the form of North America, although originally it also included the cratonic areas of Greenland and the Hebridean terrane in northwest Scotland.

  6. Geosphere - Wikipedia

    en.wikipedia.org/wiki/Geosphere

    There are several conflicting usages of geosphere, variously defined. It may be taken as the collective name for the lithosphere, the hydrosphere, the cryosphere, and the atmosphere. [1] The different collectives of the geosphere are able to exchange different mass and/or energy fluxes (the measurable amount of change). The exchange of these ...

  7. Ecosphere (planetary) - Wikipedia

    en.wikipedia.org/wiki/Ecosphere_(planetary)

    It's possible for the hydrosphere to be highly distributed throughout other component spheres such as the geosphere and atmosphere. There are about 1.4 billion km of water on Earth. That includes liquid water in the ocean, lakes, and rivers. It includes frozen water in snow, ice, and glaciers, and water that’s underground in soils and rocks.

  8. Biogeochemical cycle - Wikipedia

    en.wikipedia.org/wiki/Biogeochemical_cycle

    In sediments, the time scale available for degradation increases by orders of magnitude with the result that 90% of the organic carbon delivered is degraded and only 0.2 Pg C yr −1 is eventually buried and transferred from the biosphere to the geosphere. [26] More complex model with many interacting boxes.

  9. United Nations geoscheme - Wikipedia

    en.wikipedia.org/wiki/United_Nations_geoscheme

    The United Nations geoscheme is a system which divides 248 countries and territories in the world into six continental regions, 22 geographical subregions, and two intermediary regions. [1] It was devised by the United Nations Statistics Division (UNSD) based on the M49 coding classification . [ 2 ]

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