For example, a well-known characteristic of modern island arc basalts is their enrichment in radiogenic strontium relative to basalts formed at mid-ocean ridges, which are spreading apart rather ...

Mid-ocean ridge basalts (MORBs), located far from subduction zones, are typically thought to be unaffected by subduction ...

Macquarie Island (34 km long x 5 km wide) is an oceanic island in the Southern Ocean ... These unique exposures include excellent examples of pillow basalts and other extrusive rocks.

Volcanic eruptions in the middle of tectonic plates, far from any volcanically-active plate boundaries, have created many of the thousands of ocean islands and seamounts that cover Earth's ocean ...

As you read this article, refer as often as you wish to the accompanying animation. The animation, which you control using your mouse, shows the breakup of the ancient supercontinent of Gondwana ...

A schematic image of subducted oceanic crust inferred from this study. Basalt and harzburgite layers of the oceanic crust accumulate beneath and above the 660 km discontinuity, respectively.

Only a large mountain chain (the two islands of New Zealand) and some small oceanic islands are visible ... thanks to the discovery of the basalt pebbles, which are associated with underwater ...