Tag Archives: Geology

Sonar tool poised to map sea floor in fine detail

Researchers see promise in “synthetic aperture” devices that mimic giant acoustic cameras. Continue reading

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After abuse, Inuit group closes off ancient rock belt

The nearly 4-billion-year-old rocks offer a look into Earth’s earliest years. Read more in Science magazine…

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Scientists predict an undersea volcano eruption near Oregon in 2025

Real-time data from Axial Seamount provides a good test case for eruption forecasting. Continue reading

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Seeking Supernovae in Seafloor Sediments

Minerals exposed during an ancient Mediterranean Sea desiccation should reveal damage caused by muons, providing evidence of enhanced cosmic-ray fluxes. Continue reading

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Drones Could Spot Crime Scenes from Afar

A system could aid forensic searches and crime-scene mapping by detecting reflections from human materials. Continue reading

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Measurements of elusive mineral could explain mantle discontinuity

A predicted phase transition shows up in high-pressure experiments. Continue reading

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How to build megaripples out of sand

Sorting of grains by steady winds produces rare formations larger than ripples but smaller than dunes. Continue reading

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A Kilauea eruption like no other

The famously active Hawaiian volcano typically erupts at existing fissures and triggers minor earthquakes. This latest event has no such limitations. Continue reading

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Watching How Rare, Meteoric Diamonds Form

A shock collision experiment maps hexagonal diamond’s transition from graphite in real time.   Continue reading

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Decoding an asteroid’s magnetic history

Meteorite samples show that metal asteroids exhibited dynamo activity while they solidified from the outside in. Continue reading

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