Land

Cosma / Communication / Knowledge / Realm / Terrestrial / Sphere / Land

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Introduction1

Dictionary

land : the surface of the earth and all its natural resources — Webster

OneLook, Free Dictionary, Wiktionary

lithosphere : the outer part of the solid earth composed of rock essentially like that exposed at the surface, consisting of the crust and outermost layer of the mantle, and usually considered to be about 60 miles (100 kilometers) in thickness — Webster

OneLook, Free Dictionary, Wiktionary

Encyclopedia

Lithosphere is the rigid, outermost shell of a terrestrial-type planet, or natural satellite, that is defined by its rigid mechanical properties. On Earth, it is composed of the crust and the portion of the upper mantle that behaves elastically on time scales of thousands of years or greater. The outermost shell of a rocky planet, the crust, is defined on the basis of its chemistry and mineralogy. — Wikipedia

Encyclopædia Britannica

Search

http://www.wolframalpha.com/input/?i=Lithosphere (WolframAlpha)

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Inspiration

Wonder

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Innovation

Science

Geology is an science concerned with the solid Earth, the rocks of which it is composed, and the processes by which they change over time. Geology can also refer to the study of the solid features of any terrestrial planet or natural satellite such as Mars or the Moon. Modern geology significantly overlaps all other earth sciences, including hydrology and the atmospheric sciences, and so is treated as one major aspect of integrated earth system science and planetary science.

Geology describes the structure of the Earth beneath its surface, and the processes that have shaped that structure. It also provides tools to determine the relative and absolute ages of rocks found in a given location, and also to describe the histories of those rocks. By combining these tools, geologists are able to chronicle the geological history of the Earth as a whole, and also to demonstrate the age of the Earth. Geology provides the primary evidence for plate tectonics, the evolutionary history of life, and the Earth’s past climates. — Wikipedia

Encyclopædia Britannica

Geology Resources (Library of Congress)
Geology (Wolfram Alpha)

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Preservation

History

Project Mohole (National Academies of Sciences)
Project Mohole (Wikipedia)

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Participation

Education

Earth’s Structure: About the Earth (Geography4Kids)
Geology for Kids

Course

OER Commons: Open Educational Resources

News

Science Daily, Phys.org, NPR Archives

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Expression

Future

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More News …

Phys.org - latest science and technology news stories Phys.org internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine.

  • New model will help find Earth-like exoplanets
    on November 10, 2021 at 4:29 pm

    A new category of planet, known as eggshell planets, which orbit distant stars, have ultra-thin crusts too thin to sustain tectonics and will be hostile to life, according to a new international study involving the University of St Andrews.

  • Support for a 'jelly sandwich' model of the...
    on November 1, 2021 at 2:10 pm

    With an area of 2.5 million square kilometers and an altitude that can exceed 4,500 meters, the Tibetan Plateau is the largest and highest plateau on Earth. Although its formation over the past 65 million years is broadly attributed to a collision between the tectonic plates of India and Asia, the details of its genesis and ongoing evolution remain hotly debated.

  • Geophysicist sprints to monitor quake aftershocks...
    on August 27, 2021 at 5:10 pm

    When an 8.2-magnitude earthquake struck off the coast of Chignik, Alaska, on July 29, geophysicist Geoffrey Abers did the logical—if not simple—thing.

  • Measuring the sound velocity of Majorite under...
    on August 25, 2021 at 12:00 pm

    Researchers at Ehime University have reported the sound velocity of MgSiO3 Majorite garnet up to the pressure of 18 gigapascals and temperature up to 2,000 Kelvins. Their results lead to understanding of the mineral composition of the Earth's mantle transition zone (MTZ), which has not been fully elucidated yet. This study suggests that a mechanical mixture of slab and mantle rocks, rather than equilibrated rocks, is more likely to explain seismological observations throughout the MTZ.

  • New evidence of geologically-recent Venusian...
    on August 10, 2021 at 6:29 pm

    New data analysis techniques allow evidence of recent volcanism to be found in old Magellan spacecraft data. It is unclear if this activity is occurring today, or if it occurred within tens of million years, but geologically speaking, either case is recent. This adds to the growing body of evidence that volcanoes on Venus didn't go extinct as long ago as many had thought. This work was conducted by Planetary Science Institute (PSI) researchers Megan Russell and Catherine Johnson.


Geology News -- ScienceDaily Geology news. From the discovery of new properties of deep earth and finds in fossil magma chambers to fossil fuels and more.

  • Exploring carbon storage deep beneath the seabed
    on December 2, 2021 at 7:15 pm

    A new study sheds light on the way salty water acts in deep-sea aquifers, paving the way for further research into carbon storage deep beneath the seabed.

  • When variations in Earth's orbit drive biological...
    on December 1, 2021 at 4:19 pm

    Coccolithophores are microscopic algae that form tiny limestone plates, called coccoliths, around their single cells. They are responsible for half of the limestone produced in the oceans and therefore play a major role in the carbon cycle and in determining ocean chemistry. A team of scientists show that certain variations in Earth's orbit have influenced the evolution of coccolithophores.

  • Researchers unlock biogeographical secrets of...
    on December 1, 2021 at 4:19 pm

    Researchers have decoded for the first time the demographic history, genetic structure, and population connectivity of a deep-sea limpet widely distributed in vent and seep ecosystems in the Northwest Pacific. This study not only enhances our knowledge of the historical population divergence and contemporary gene flow of deep-sea organisms under the intricate interactions amongst local habitats, seafloor topography, and ocean currents, but also serves as a scientific basis for better […]

  • Strong winds power electric fields in the upper...
    on November 29, 2021 at 10:27 pm

    Using observations from NASA's ICON mission, scientists presented the first direct measurements of Earth's long-theorized dynamo on the edge of space: a wind-driven electrical generator that spans the globe 60-plus miles above our heads. The dynamo churns in the ionosphere, the electrically charged boundary between Earth and space. It's powered by tidal winds in the upper atmosphere that are faster than most hurricanes and rise from the lower atmosphere, creating an electrical environment that […]

  • Sun is likely an unaccounted source of the...
    on November 29, 2021 at 5:27 pm

    Curtin University researchers have helped unravel the enduring mystery of the origins of the Earth's water, finding the Sun to be a surprising likely source.

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Related

Here are links to pages about closely related subjects.

Knowledge Realm

Terrestrial

Sphere Land, Ice, Water (Ocean), Air
Ecosystem Forest, Grassland, Desert, Arctic, Aquatic

Life Cell, Gene, Tree of Life
Microorganism
Plant Flower, Tree
Animal
Invertebrate Cuttlefish, Octopus, Ant, Bee, Butterfly, Spider, Lobster
Vertebrate Fish, Seahorse, Ray, Shark, Frog, Turtle, Tortoise, Dinosaur
Bird, Ostrich, Owl, Crow, Parrot
Mammal Bat, Rabbit, Giraffe, Camel, Horse, Elephant, Mammoth
Whale, Dolphin, Walrus, Seal, Polar Bear, Bear, Cat, Tiger, Lion, Dog, Wolf
Monkey, Chimpanzee, Human

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Notes

1.   The resources on this page are are organized by a classification scheme developed exclusively for Cosma.