Scientists discovered Earth's first crust had continental chemical signatures. This challenges beliefs about when these ...

This area, called the Cascadia Subduction Zone, hosts a megathrust fault ... the rigid edge of the overriding North American continental plate is composed of many different kinds of rocks ...

Geologists have made certain assumptions about how the crust making up our planet's earliest surface formed, but a new study ...

Earth’s earliest crust, formed over 4.5 billion years ago, has long been thought to have lacked the complex chemical features ...

New research suggests that Earth's first crust, formed over 4.5 billion years ago, already carried the chemical traits we ...

The Cascadia subduction zone, where the oceanic Juan de Fuca plate descends ... West of Vancouver Island, seismic reflection surveys show that beneath the continental shelf the top of the subducting ...

A subduction zone, composed of the deep Aleutian Trench ... the denser Pacific oceanic plate subducts beneath the less dense continental North American plate. As the subducted plate descends ...

In the modern world, there are many foreland basin systems, including the interior of South America, east of the Andes, a subduction boundary; and the depositional basins bordering the Himalayas and ...

A new study has changed what scientists thought they knew about Earth’s early history. Researchers have discovered that the ...

The Farallon plate and the North American plate once formed a subduction zone along the continent's west coast ... which are ...

More specifically, subduction zones — where tectonic plates slip over and under each other — can push land to open or close oceans. Researchers found that an inactive subduction zone under the ...