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A map of the tectonic plates of the earth showing the different boundary types in different colors. Locations where plates collide (convergent boundaries) are shown in red.
Key principles. The outer layers of Earth are divided into the lithosphere and asthenosphere. The division is based on differences in mechanical properties and in the method for the transfer of heat. The lithosphere is cooler and more rigid, while the asthenosphere is hotter and flows more easily.
14 cze 2004 · These images show the locations of the plates and their boundaries in the Earth's crust. Convergent boundaries are areas where two plates are pushing against each other and one plate may be subducting under another.
22 sie 2024 · Plate motions can be tracked using Global Positioning System (GPS) data from different locations on Earth’s surface. Rates of motions of the major plates range from less than 1 cm/y to more than 10 cm/y.
7 mar 2024 · When Earth’s tectonic plates grind past one another, enormous amounts of energy can be released in the form of earthquakes. Volcanoes are also often found near plate boundaries because molten rock from deep within Earth—called magma—can travel upward at these intersections between plates.
19 paź 2023 · Colliding tectonic plates created mountain ranges, and a shift in global climate allowed glaciers to spread as far as the Equator. A new supercontinent named Pannotia formed in the south polar region.
18 cze 2024 · This StoryMap dives into the physics of tectonic plates, and describes how the motions of these plates have shaped Earth's physical geography in ways we might take for granted.
