Case studies include both rifting on land, in east Africa and Iceland, and at the mid-ocean ridges that divide the oceanic crust. The mid-ocean ridges mark the lines along which the Earth is ...

The Earth's interior is composed of four layers ... colliding to build mountains or rifting apart to form new seafloor. Continents are composed of relatively light blocks that float high on ...

Tom Gernon, professor of earth science at the University of Southampton ... “Meanwhile, the rifting event also sets about a ‘deep mantle wave’ that travels along the continent’s base ...

Outcrop examination revealed different stages of rifting and fluvial sedimentation deposited in successions at Rainy Cove (early stage rifting) and McCaul Island (early to middle stage rifting).

"This rifting has thinned the crust and brought hot material from deep down in the Earth - from hundreds of ... One of the great advances in polar science in the past decade is the recognition ...