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1 sty 2023 · Mid-ocean ridges are divergent plate boundaries where new oceanic crust and lithosphere form through a complex interplay of magmatic, hydrothermal, and tectonic processes. Magma is generated tens of km below the ridge by adiabatic decompression of upwelling asthenosphere.
Bathymetry of the ocean floor showing the continental shelves and oceanic plateaus (red), the mid-ocean ridges (yellow-green) and the abyssal plains (blue to purple). Like land terrain, the ocean floor has mountains including volcanoes, ridges, valleys, and plains.
Bathed by ocean water, the lava cools, and you have new seafloor. The material that erupts at mid-ocean ridges cools into bulbous “pillow lavas.” These are located at the Galápagos Rift, where the Cocos Plate and the Nazca Plate move away from each other.
1 lut 2009 · The deep basins under the oceans are carpeted with lava that spewed from submarine volcanoes and solidified. Scientists have solved the mystery of how, precisely, all that lava reaches the...
10 gru 2020 · The stratosphere, the layer of the atmosphere at heights between 10-50 km, is an important source of variability for the weather and climate at the Earth’s surface on timescales of weeks to...
The ocean surface is vast and hides an entire world underneath it. The ocean floor is sometimes called the final frontier of the modern era. Though people have traveled on the ocean for millennia, people have explored only a tiny fraction of the ocean floor.
The ocean surface is vast and hides an entire world underneath it. The ocean floor is sometimes called the final frontier of the modern era. Though people have traveled on the ocean for millennia, people have explored only a tiny fraction of the ocean floor.
