WebJan 2, 2024 · Seafloor Spreading Theory Evidence. 1. Evidence from Magma. Molten material frequently erupted from fissures along the mid-ocean ridge before rapidly cooling, according to evidence found ... 2. … WebSea-floor spreading — In the early 1960s, Princeton geologist Harry Hessproposed the hypothesis of sea-floor spreading, in which basaltic magma from the mantle rises to create newocean floor at mid-ocean ridges. 27. who were the two scientists who proposed the theory of seafloor spreading in the early 1960 Harry Hess and Robert Dietz :) 28.

Seafloor Spreading Animation - Earthguide Online Classroom

WebSea Floor Spreading:A map of the ocean floor shows a variety of topographic features: flat plains, long mountain chains, and deep trenches. ... For example, if it is known that a … WebIt is a place of earthquakes and volcanos. Seafloor spreading helps explain continental drift in plate tectonics. At oceanic trenches, seafloor crust slides down and under continental crust. Earlier theories (e.g. by Alfred Wegener) of continental drift were that continents ' plowed ' through the ocean. The modern idea is that the ocean floor ... mammalian meat allergy blood test

Continental Drift and Seafloor Spreading - Dive

WebThe Mid-Atlantic Ridge runs down the center of the Atlantic Ocean, slowly spreading at a rate of 2 to 5 centimeters (0.8 to 2 inches) per year and forming a rift valley that is about the depth and width of the Grand … WebThis seafloor spreading hypothesis had been proposed a few years earlier by Harry Hess, a petrologist at Princeton University, and Robert Dietz, an oceanographer in the US Coast and Geodetic Survey (the federal … WebMay 20, 2024 · Seafloor spreading caused the Arabian and African plates to rift apart. The Indian Ocean flooded the rift valley between the continents, creating the Red Sea. Today, Africa and Asia are connected … mammalian meat allergy symptoms