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  2. Rock cycle - Wikipedia

    en.wikipedia.org/wiki/Rock_cycle

    The rock cycle is a basic concept in geology that describes transitions through geologic time among the three main rock types: sedimentary, metamorphic, and igneous. Each rock type is altered when it is forced out of its equilibrium conditions.

  3. Geochemistry of carbon - Wikipedia

    en.wikipedia.org/wiki/Geochemistry_of_carbon

    The carbon then becomes part of a sedimentary rock when lithification happens. Human technology or natural processes such as weathering, or underground life or water can return the carbon from sedimentary rocks to the atmosphere. From that point it can be transformed in the rock cycle into metamorphic rocks, or melted into igneous rocks.

  4. Original - The rock cycle is a fundamental concept in geology that describes the dynamic transitions through geologic time among the three main rock types: sedimentary, metamorphic, and igneous. Due to the driving forces of the rock cycle, plate tectonics and the water cycle , rocks do not remain in equilibrium and are forced to change as they ...

  5. List of rock formations - Wikipedia

    en.wikipedia.org/wiki/List_of_rock_formations

    A rock formation is an isolated, scenic, or spectacular surface rock outcrop. Rock formations are usually the result of weathering and erosion sculpting the existing rock. The term rock formation can also refer to specific sedimentary strata or other rock unit in stratigraphic and petrologic studies.

  6. Carbonate–silicate cycle - Wikipedia

    en.wikipedia.org/wiki/Carbonate–silicate_cycle

    The carbonate-silicate cycle is the primary control on carbon dioxide levels over long timescales. [3] It can be seen as a branch of the carbon cycle, which also includes the organic carbon cycle, in which biological processes convert carbon dioxide and water into organic matter and oxygen via photosynthesis. [5]

  7. Underground hard-rock mining - Wikipedia

    en.wikipedia.org/wiki/Underground_hard-rock_mining

    This region is also the location of the harshest conditions for hard rock mining, with air temperatures of up to 45 °C (113 °F). However, massive refrigeration plants are used to bring the temperature down to around 28 °C (82 °F). The deepest inactive hard rock mine in North America is the Empire mine in Grass Valley California. Closed in ...

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  9. Talk:Rock cycle/Archive 1 - Wikipedia

    en.wikipedia.org/wiki/Talk:Rock_cycle/Archive_1

    5 Rock Cycle. 2 comments. 6 Merge. 3 comments. 7 New diagram. 1 comment. 8 Semi-protected edit request on 7 September 2019. 2 comments. 9 External links modified ...