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  2. Igneous textures - Wikipedia

    en.wikipedia.org/wiki/Igneous_textures

    E.J. Tarbuck and F.K. Lutgens, Earth An introduction to physical geology. seventh edition, Prentice Hall, 2002. Kevin Hefferan and John O'Brien, Earth Materials ...

  3. Retrogressive thaw slump - Wikipedia

    en.wikipedia.org/wiki/Retrogressive_thaw_slump

    This flows downslope as it "collapses to the base of the exposure". [12] The floor or base of the retrogressive thaw slump is covered in then sediment—mudflows and braided hills. [9] As the headscarp progressively retreats, the slump floor extends. [9] As the slopes thaw, the ice-rich permafrost is exposed and turns into a mud slurry. [12]

  4. Tonto Group - Wikipedia

    en.wikipedia.org/wiki/Tonto_Group

    Figure 1. A geologic cross section of the Grand Canyon. [5]The Tonto Group is a name for an assemblage of related sedimentary strata, collectively known by geologists as a Group, that comprises the basal sequence Paleozoic strata exposed in the sides of the Grand Canyon.

  5. 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 ).

  6. Portal:Earth sciences - Wikipedia

    en.wikipedia.org/wiki/Portal:Earth_sciences

    Earth science or geoscience includes all fields of natural science related to the planet Earth. 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 ).

  7. Category:Earth sciences - Wikipedia

    en.wikipedia.org/wiki/Category:Earth_sciences

    Science portal; Earth science (also known as geoscience, the geosciences, or the Earth sciences) includes all the sciences related to the planet Earth. It is arguably a special case in planetary science, Earth being the only known life-bearing planet known to Homo sapiens. There are both reductionist and holistic approaches to Earth science.

  8. List of unsolved problems in geoscience - Wikipedia

    en.wikipedia.org/wiki/List_of_unsolved_problems...

    Was there ever a collision of the Earth with another planet Theia, giving birth to the Moon? [1] There is compelling evidence, such as measures of a shorter duration of the Earth's rotation and lunar month in the past, pointing to a Moon much closer to Earth during the early stages of the Solar System.

  9. List of preprint repositories - Wikipedia

    en.wikipedia.org/wiki/List_of_preprint_repositories

    Earth science: All subdomains of Earth Science and related domains of planetary science 3,817 2017 California Digital Library: EcoEvoRxiv: Ecology: A free preprint service for ecology, evolution and conservation 366 2018 Center for Open Science: EconStor: Economics and Business Studies A subject based repository with a high share of working ...

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