Search Results for: Geology

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7,844 results

7,844 results for: Geology

  1. Paleontology

    China was an ancient-ape paradise

    Fossil dig uncovers the oldest known remains of ancestral gibbons

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  2. Climate

    IPCC Lite

    A new primer on climate change is slim and trim.

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  3. Earth

    Ancient Chasm: Parts of Grand Canyon may be 17 million years old

    The chemical composition of mineral formations in caves along the Grand Canyon may provide fresh insight into the chasm's history, including its age and the rate at which it was carved.

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  4. Animals

    Polar bears listed

    Polar bear declared "threatened," but Secretary limits decision's impact.

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  5. Planetary Science

    Portrait of a Martian crater

    An ultrasharp image of part of Mars' Gale crater shows waterborne sediments and volcanic ash.

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  6. Earth

    Groundwater use adds CO2 to the air

    Pumping out groundwater for crop irrigation or industrial purposes releases planet-warming carbon dioxide into the atmosphere.

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  7. Paleontology

    Rodents tell a geologic tale

    The sudden appearance of many new species of rodents in Chile about 18 million years ago may have marked the rise of the southern Andes.

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  8. Earth

    Erosion accelerates along Alaskan coast

    Alaska's northern coast is falling into the sea at an accelerating rate.

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  9. Earth

    Hued Afterglow: Fingerprinting diamonds via phosphorescence

    The eerie phosphorescence displayed by a rare form of blue diamond can be used as an easy, cheap, and nondestructive way to identify individual gemstones and to distinguish natural blue diamonds from synthetic ones.

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  10. Earth

    Finding Fault: Trace of old subduction zone found in Italy

    A thick layer of rocks now lying high in the mountains of Italy is the remains of a quake-generating subduction zone active under the sea millions of years ago, a discovery that provides clues about ancient seismic activity along this interface between tectonic plates and insights into what may be happening along many such subduction zones today.

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  11. Humans

    From the February 12, 1938, issue

    Radio tower reaches for the sky, making a canyon the hard way, and forecasting the next big drought.

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  12. Earth

    Oxygen Rocks: Volcanoes spurred early atmospheric change

    Earth owes its oxygen-rich atmosphere to a change in volcanic activity about 2.5 billion years ago.

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