Earthquakes and Volanoes

-Amrita Volcanoes and earthquakes are seemingly very different geological events, insofar they are actually closely re latishd two go forth from promptments of Earths crust. Earths crust the lithosphere is composed of several major(ip) plates and many an mated(prenominal) minor plates that change shape and position. Over time, these architectonic plates move, act with each different, and are responsible for the formation of sea basins, portion ranges, islands, volcanoes, and earthquakes. The theory of plate tectonics is relatively new. In the advance(prenominal) 1900s, Alfred Wegener first developed a theory of continental puke based on a collection of evidence that showed butt against similarities in rocks and fossils found on continents separated by massive distances. Sometime later, Arthur Holmes proposed a mechanism to explain how the continents could have move across Earths surface. He proposed that circular convection currents of molten material of lat e within Earth could provide ample force to break and move continents. By the late 1960s, evidence of seafloor spreading helped to tell the now well-accepted theory of plate tectonics. Three main types of boundaries follow between tectonic plates. The first, called a divergent boundary, occurs most much(prenominal) at mid-oceanic ridges.

Here, two plates move away from each other, forming a break, or rift, in Earths crust. Magma from the mantle rises to fill the gap, creating new crust. The dissipate type, called a convergent boundary, occurs where two plates moving toward each other meet. If at least one of the plates is made up of relatively d! ense oceanic crust, the denser of the two plates subducts, or lantern slides beneath the other. If two plates are made up of continental crust, very micro subduction occurs. Instead, the plates buckle and fold to create valleys, ridges, and high mountain ranges. The ending type of boundary is called a transform boundary. At these locations, plates slide roughly alongside each other in opposite word directions. The plates often get stuck as...If you want to get a heighten essay, order it on our website: OrderCustomPaper.com

If you want to get a full essay, visit our page: write my paper