Tectonic plate boundaries. Artwork showing two types of boundary associated with the formation and destruction of an oceanic section of a tectonic plate. At mid-ocean ridges,molten magma (red) welling up from the mantle below forms new seabed. The seabed either side of the ridge moves away (arrows) in a process called seafloor spreading. The denser seabed is pushed downwards (right) when it reaches the less dense continental portion of the tectonic plates. This area is known as a subduction zone,and ocean water gets trapped helping to form types of magma that erupt as coastal volcanoes (far right) | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Lunau, Claus |
Bildgröße: | 5202 px × 3381 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |