Sea Floor Spreading Is Driven By Volcanic Activity

Rate of seafloor spreading.

Sea floor spreading is driven by volcanic activity.

Seafloor spreading theory that oceanic crust forms along submarine mountain zones and spreads out laterally away from them. Seafloor spreading is driven by volcanic activity. The motivating force for seafloor spreading ridges is tectonic plate slab pull at subduction zones rather than magma pressure although there is typically significant magma activity at spreading ridges. Marine magnetic anomalies result from seafloor spreading in conjunction with.

Plates that are not subducting are driven by gravity sliding off the elevated mid ocean ridges a process called ridge push. Question 2 1 5 1 5 points. Hydrothermal structures such as pipes and pockmarks mainly occur in the proximity of volcanoes or accompany volcanic groups. Rates of seafloor spreading in the atlantic ocean are compatible with what is known about the breakup of pangaea.

Marine magnetic anomalies can be used to estimate the. In the middle of abyssal plains b. And pressure both increasing. Sea floor spreading is driven by volcanic activity.

Rock eroded away and deposited in ocean basin volcano erupts through ocean floor. Recycles old oceanic crust. Convection currents carry heat from the lower mantle and core to the lithosphere. In the middle of abyssal plains along mid ocean ridges at the edges of continental shelves along fracture zones.

Along mid ocean ridges. At a spreading. Seafloor spreading is driven by volcanic activity. Seafloor spreading is driven by volcanic activity equal to summed over the entire surface of earth the rate of spreading at divergent boundaries is lithospheric consumption at subduction zones.

Seafloor spreading is driven by volcanic activity that occurs. This idea played a pivotal role in the development of the theory of plate tectonics which revolutionized geologic thought during the last quarter of the 20th century. Pipes pockmarks and localized amplitude anomalies mainly constitute the magmatic hydrothermal systems which are probably driven by post seafloor spreading volcanoes plutons. Convection currents also recycle lithospheric materials back to the mantle.