Geology News

Earth Received Most of Its Water Relatively Early from Chondrite-Like Bodies

October 31, 2014

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Earth's Water Most Likely Accreted at the Same Time as the Rock

New research from Woods Hole Oceanographic Institution shows that Earth’s water most likely accreted at the same time as the rock, suggesting that Earth received most of its water relatively early from chondrite-like bodies. Earth is known as the Blue Planet because of its oceans, which cover more than 70 percent of the planet’s surface […]

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Low Atmospheric Oxygen Levels Delayed Rise of Animals

October 31, 2014

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Low Oxygen Levels Delayed the Appearance of Animals on Earth

A new study reveals that oxygen levels during the “boring billion” period were only 0.1% of what they are today, providing the first evidence that oxygen levels were low enough during this period to potentially prevent the rise of animals. Geologists are letting the air out of a nagging mystery about the development of animal […]

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New Calculations Challenge Assumptions about Rigid Lithosphere

August 27, 2014

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New Calculations Show Pacific Plate Shrinking as it Cools

A newly published study from geophysicists Rice University and the University of Nevada challenge assumptions about a rigid lithosphere, revealing that the Pacific plate is shrinking as it cools. Houston – The tectonic plate that dominates the Pacific “Ring of Fire” is not as rigid as many scientists assume, according to researchers at Rice University […]

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Geophysicists Detect Evidence of Large Amounts of Water in Earth’s Mantle

August 22, 2014

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Scientists Detect Evidence of Water in Earths Mantle

New research reveals large quantities of water bound up in the rock located deep in the Earth’s mantle. Researchers have found evidence of a potential “ocean’s worth” of water deep beneath the United States. Although not present in a familiar form, the building blocks of water are bound up in rock located deep in the […]

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New Questions About the Evolution of Dinosaurs in North America

August 19, 2014

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New Evidence Raises Questions About When Dinosaurs Evolved in North America

Scientists at MIT precisely dated the rocks in which the earliest dinosaur fossils were discovered in the southwestern United States, raising questions about when dinosaurs evolved in North America. The Jurassic and Cretaceous periods were the golden age of dinosaurs, during which the prehistoric giants roamed the Earth for nearly 135 million years. Paleontologists have […]

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Martian Slopes of Arsia Mons May Have Been Home to a Habitable Environment

May 28, 2014

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Slopes of Arsia Mons Volcano May Have Been Home to a Habitable Environment

New research from geologists at Brown University reveals that the slopes of the Martian volcano Arsia Mons may have been home to one of the most recent habitable environments yet discovered on Mars. Providence, Rhode Island – Brown University – The slopes of a giant Martian volcano, once covered in glacial ice, may have been […]

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NASA Study Reveals West Antarctic Glaciers in Irreversible State of Decline

May 14, 2014

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Study Indicates Loss of West Antarctic Glaciers Appears Unstoppable

A new study led by NASA researchers presents multiple lines of evidence – incorporating 40 years of observations – that rapidly melting section of the West Antarctic Ice Sheet appears to be in an irreversible state of decline. A new ScienceCast video lays out the evidence for irreversible decline of the West Antarctic glaciers. Over […]

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Yale Study Reveals Parts of Ancient Antarctica Were as Warm as Today’s California Coast

April 28, 2014

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Study Shows Todays Antarctic Region Once as Hot as California and Florida

New research from Yale University shows that parts of ancient Antarctica were as warm as today’s California coast, and polar regions of the southern Pacific Ocean were similar to seawater temperatures near Florida today. Parts of ancient Antarctica were as warm as today’s California coast, and polar regions of the southern Pacific Ocean registered 21st-century […]

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Martian Meteorites Yield Clues to the Planet’s Early Atmosphere

April 17, 2014

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Meteorites Provide Clues to Early Atmosphere of Mars

Using data from meteorites that fell to Earth from Mars, scientists investigate the chemical composition of the Martian atmosphere throughout history, and learn whether the planet has ever been hospitable to life. Geologists who analyzed 40 meteorites that fell to Earth from Mars unlocked secrets of the Martian atmosphere hidden in the chemical signatures of […]

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ASU Research Shows Gusev Crater on Mars Once Held a Lake

April 10, 2014

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Study Shows Gusev Crater on Mars Had a Lake

New research from Arizona State University shows evidence that the Gusev Crater on Mars once held a lake. If desert mirages occur on Mars, “Lake Gusev” belongs among them. This come-and-go body of ancient water has come and gone more than once, at least in the eyes of Mars scientists. Now, however, it’s finally shifting […]

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Study Reveals Ancient Impact of Massive Asteroid

April 10, 2014

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Researchers Reconstruct Ancient Impact of Massive Asteroid

A newly published study reveals an ancient asteroid impact that left a crater nearly 500 kilometers across: up to two and a half times larger in diameter than the crater formed by the dinosaur-killing asteroid. Washington, D.C. — Picture this: A massive asteroid almost as wide as Rhode Island and about three to five times […]

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Scientists Produce Geologic Map of Jupiter’s Moon Ganymede

February 13, 2014

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New Vview of Jupiters Moon Ganymede

Using data from NASA’s Voyager 1 and 2 spacecraft and Galileo orbiter, scientists have produced the first global geologic map of Jupiter’s moon Ganymede. More than 400 years after its discovery by astronomer Galileo Galilei, the largest moon in the solar system – Jupiter’s moon Ganymede – has finally claimed a spot on the map. […]

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