Curiosity captures stunning views of a changing Mars landscape

For the past year, NASA's Curiosity Mars rover has been traveling through a transition zone from a clay-rich region to one filled with a salty mineral called sulfate. While the science team targeted the clay-rich region and ...

New study analyzes causes of 2010 landslide in Saint-Jude, Quebec

In May 2010, a landslide devastated the municipality of Saint-Jude, Quebec, and was responsible for four fatalities when a house was destroyed by sediment movement. Building on investigations that took place immediately after ...

Are calcareous sediments weak points in seismogenic zones?

Where a tectonic plate dives under another, in the so-called subduction zones at ocean margins, many strong earthquakes occur. Especially the earthquakes at shallow depths often cause tsunamis. How exactly are such earthquakes ...

Scientists find new arsenic threat in deep water wells

"Dig deep" to avoid naturally occurring arsenic contamination has been promoted as an answer to obtaining safe water in South Asia, which has experienced mass poisoning. But arsenic has been found in numerous deep wells drilled ...

Slow earthquakes: It's all in the rock mechanics

(Phys.org) —Earthquakes that last minutes rather than seconds are a relatively recent discovery, according to an international team of seismologists. Researchers have been aware of these slow earthquakes, only for the past ...

Clays can expand under pressure

It was always believed that water is "squeezed" out of the clay structure under pressure but physicists at Umea University in Sweden together with German colleagues show that this appear to be not always true if excess of ...

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