Geologists have long debated whether a stony formation in Canada contains the world’s oldest rocks – new measurements make a ...

Geologists say the origins of the city can be traced back to the lava and ash left behind after a supervolcano erupted 140 years ago in the area.

Thick clay deposits on Mars hint at long-lived lakes that may have sheltered early life - and preserved clues beneath layers of ancient mud. Subscribe. news. videos. images. earthpedia. take action.

Abstract: Under the action of an earthquake, the rammed earth structure will produce shear failure due to insufficient shear strength. This damage is more serious at the weak interface of each rammed ...

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