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  2. Preliminary reference Earth model - Wikipedia

    en.wikipedia.org/wiki/Preliminary_Reference...

    The preliminary reference Earth model ( PREM) plots the average of Earth 's properties by depth. [1] It includes a table of Earth properties, including elastic properties, attenuation, density, pressure, and gravity . PREM has been widely used as the basis for seismic tomography and related global geophysical models. [2]

  3. Earth science - Wikipedia

    en.wikipedia.org/wiki/Earth_science

    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 ).

  4. Encyclopedia of Earth - Wikipedia

    en.wikipedia.org/wiki/Encyclopedia_of_Earth

    Launched. September 2006. Current status. Active. The Encyclopedia of Earth (abbreviated EoE) is an electronic reference about the Earth, its natural environments, and their interaction with society. The Encyclopedia is described as a free, fully searchable collection of articles written by scholars, professionals, educators, and other approved ...

  5. Internal structure of Earth - Wikipedia

    en.wikipedia.org/wiki/Internal_structure_of_Earth

    The internal structure of Earth are the layers of the Earth, excluding its atmosphere and hydrosphere. The structure consists of an outer silicate solid crust, a highly viscous asthenosphere, and solid mantle, a liquid outer core whose flow generates the Earth's magnetic field, and a solid inner core . Scientific understanding of the internal ...

  6. Outline of Earth sciences - Wikipedia

    en.wikipedia.org/wiki/Outline_of_Earth_sciences

    Pedosphere – The outermost layer of the Earth that is composed of soil and subject to soil formation processes. Outer layers. By composition. Crust (geology) – The outermost solid shell of a rocky planet, dwarf planet, or natural satellite. Moho Discontinuity – The line between the crust and the Earth's mantle.

  7. List of tectonic plates - Wikipedia

    en.wikipedia.org/wiki/List_of_tectonic_plates

    Manus Plate – Tiny tectonic plate northeast of New Guinea. North Bismarck Plate – Small tectonic plate in the Bismarck Sea north of New Guinea. North Galápagos Microplate – Tectonic plate off west South America. Solomon Sea Plate – Minor tectonic plate near the Solomon Islands archipelago in the Pacific Ocean.

  8. Earth - Wikipedia

    en.wikipedia.org/wiki/Earth

    Earth is rounded into an ellipsoid with a circumference of about 40,000 km. It is the densest planet in the Solar System. Of the four rocky planets, it is the largest and most massive. Earth is about eight light-minutes away from the Sun and orbits it, taking a year (about 365.25 days) to complete one revolution.

  9. Earth and Planetary Science Letters - Wikipedia

    en.wikipedia.org/wiki/Earth_and_Planetary...

    Lett. Earth and Planetary Science Letters (EPSL) is a bimonthly peer-reviewed scientific journal covering research on physical, chemical and mechanical processes of the Earth and other planets, including extrasolar ones. Topics covered range from deep planetary interiors to atmospheres. The journal was established in 1966 and is published by ...

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