Section: Geology

A new record of past temperature change in the tropical Atlantic Ocean’s subsurface provides clues as to why the Earth’s climate is so sensitive to ocean circulation patterns.


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Scientists have discovered that variations in the long-term reversal rate of the Earth’s magnetic field may be caused by changes in heat flow from the Earth’s core into the base of the overlying mantle.


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Scientists have long believed that comets and, or a type of very primitive meteorite were the sources of early Earth’s volatile elements. Understanding where these volatiles came from is crucial for determining the origins of both water and life. New r…


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Scientists have discovered melt-glass material in a thin layer of sedimentary rock in Pennsylvania, South Carolina, and Syria. According to the researchers, the material — which dates back nearly 13,000 years — was formed at temperatures of 1,700 to …


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USGS Science Career Day

Posted

Video from a project that eSTEM co-sponsored with the USGS.


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Carbon nanotubes (CNTs) have potential uses in everything from medicine to electronics to construction. However, CNTs are not without risks. A new study found that they can be toxic to aquatic animals. The researchers urge that care be taken to prevent…


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According to a new Berkeley Earth study released July 29, the average temperature of Earth’s land has risen by 1.5 °C over the past 250 years. The good match between the new temperature record and historical carbon dioxide records suggests that the mo…


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A volcanic eruption around 579 million years ago buried a ‘nursery’ of the earliest-known animals under a Pompeii-like deluge of ash, preserving them as fossils in rocks in Newfoundland, new research suggests.


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A team of scientists that last year created waves by correctly forecasting the 2011 eruption of Axial Seamount years in advance now says that the undersea volcano located some 250 miles off the Oregon coast gave off clear signals hours before its impen…


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A recent study adds a new dimension to our understanding of Antarctic Peninsula climate change and the likely causes of the break-up of its ice shelves.


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On a time scale of tens to hundreds of millions of years, the geomagnetic field may be influenced by currents in the mantle. The frequent polarity reversals of Earth’s magnetic field can also be connected with processes in the mantle. New results show …


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