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earth science
10/09/2020
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By Virgilio Marin
Crystal gems found in extreme igneous rocks could form within hours, study suggests
Researchers from Rice University in Texas and the University of California, Riverside have found that gems can grow within hours inside extreme igneous rocks called pegmatites, instead of the thousands of years they usually take to form. In a study published in the journal Nature, the researchers described how they examined sample crystals from a pegmatite mine in Southern California. Using […]
10/01/2020
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By Virgilio Marin
Amazing Earth: The planet’s magnetic poles can flip more frequently than originally thought
Earth is wrapped by a magnetic field powered by the churning of hot molten metals in the outer core. Thanks to this invisible field, the planet is protected from the solar wind and cosmic particles, permitting just enough radiation to tide humans by. This magnetic field, however, can flip and does so many times every million years or so, […]
08/17/2020
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By Virgilio Marin
Scientists extract new-found mineral from a South African diamond
An unusual mineral was discovered embedded within a diamond from a South African volcanic site. The mineral called goldschmidtite represents a new supergroup of minerals, according to a study published in the journal American Mineralogist, and it could hint at the chemical processes that occur deep within the Earth’s mantle. Named in honor of the geochemist Victor Moritz […]
03/12/2020
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By Franz Walker
Study: New radioactivity model indicates lost continents of early Earth, challenging current models
Current geological models of Earth’s past tend to assume that the seven continents as we know them have been consistent throughout out planet’s history. A recent study, however, has called that into doubt, hinting at the possibility that other continents may have come and gone in our planet’s prehistoric past. Scientists at the University of Adelaide in Australia have published […]
11/08/2019
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By Edsel Cook
Researchers find that the Earth’s mantle is “more dynamic” than previously believed
The medial zone of the Earth’s three-layered interior, the mantle is itself divided into upper and lower parts. Most experts believe that the lower mantle is dormant, but a recent European study found greater signs of dynamic activity in the region. The lower mantle starts 410 miles (660 km) beneath the crust of the planet. […]
10/30/2019
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By Edsel Cook
Mesmerized by the ocean? To understand why the moon is where it is, start with Earth’s tides
As far as the human race remembers, the moon has always been there. But how did it get up there in the first place – and what keeps it revolving around Earth? By firing lasers at artificial mirrors deployed on the moon, researchers have learned that Earth’s satellite is drifting away at the rate of […]
10/14/2019
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By Cassie B.
More evidence found of devastating asteroid strike 13,000 years ago
Could a huge asteroid hit our planet and cause mass devastation? As much as we’d like to think this type of occurrence is confined to science fiction, new evidence has been found pointing to a giant asteroid hit 12,800 years ago – and if it happened before, it could happen again. In South Africa, scientists […]
08/25/2019
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By Edsel Cook
“Tree kill zone” in Yellowstone National Park hints at new magma activity below the surface
The massive amounts of magma slumbering beneath Yellowstone National Park stir anew. Researchers reported the appearance of a new thermal area in the park that killed off the plants in its vicinity. The area measured eight acres (3.2 hectares), enough to fit four soccer fields. It first appeared on infrared images taken by Landsat satellites […]
07/29/2019
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By Stephanie Diaz
Mantle mystery: Geologists don’t know what to make of two continent-sized mountains found beneath the Earth’s crust
Did you know that there are enormous “blobs of masses” between your feet and the core of the Earth? While scientists know for certain that they exist, the purpose they serve continues to baffle them. These blobs are as wide as continents and are as high as Mount Everest. They are found at the bottom […]
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