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What keeps the Earth cooking?

What spreads the sea floors and moves the continents? What melts iron in the outer core and enables the Earth's magnetic field? Heat. Geologists have used temperature measurements from more than 20,000 boreholes around the ...

The Amazon River is 11 million years old

The Amazon River originated as a transcontinental river around 11 million years ago and took its present shape approximately 2.4 million years ago. These are the most significant results of a study on two boreholes drilled ...

Earthquake in super slo-mo

A big earthquake occurred south of Istanbul in the summer of 2016, but it was so slow that nobody noticed. The earthquake, which took place at mid-crustal depth, lasted more than 50 days. A novel processing technique applied ...

Deep Alpine Fault borehole primed with instruments

An ambitious project to drill 1.3 kilometres into the Alpine Fault has been halted early by equipment problems, but it has still yielded a large amount of useful information about the inner workings of the fault.

International drilling expedition to probe Japanese fault zone

(PhysOrg.com) -- The scientific drilling ship Chikyu will set sail on April 1 on an ambitious expedition to drill into the fault that caused the devastating Tohoku earthquake and tsunami in March 2011. Emily Brodsky, a professor ...

In Japan, seismic waves slower after rain, large earthquakes

An earthquake is first detected by the abrupt side-to-side jolt of a passing primary wave. Lagging only slightly behind are shear waves, which radiate out from the earthquake's epicenter and are seen at the surface as a rolling ...

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