Sea Floor 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.

Sea floor spreading is driven by volcanic activity.

Marine magnetic anomalies can be used to estimate the. Seafloor spreading and other tectonic activity processes are the result of mantle convection. Convection currents carry heat from the lower mantle and core to the lithosphere. Seafloor spreading is driven by volcanic activity that occurs.

Convection currents also recycle lithospheric materials back to the mantle. In the middle of abyssal plains along mid ocean ridges at the edges of continental shelves along fracture zones. Seafloor spreading is driven by volcanic activity. At a spreading.

Mantle convection is the slow churning motion of earth s mantle. 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. Rock eroded away and deposited in ocean basin volcano erupts through ocean floor. Seafloor spreading theory that oceanic crust forms along submarine mountain zones and spreads out laterally away from them.

Question 2 1 5 1 5 points. 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. And pressure both increasing. Recycles old oceanic crust.

In the middle of abyssal plains b. Along mid ocean ridges. Rates of seafloor spreading in the atlantic ocean are compatible with what is known about the breakup of pangaea. Rate of seafloor spreading.

Hydrothermal structures such as pipes and pockmarks mainly occur in the proximity of volcanoes or accompany volcanic groups. Plates that are not subducting are driven by gravity sliding off the elevated mid ocean ridges a process called ridge push. Sea floor spreading is driven by volcanic activity. Pipes pockmarks and localized amplitude anomalies mainly constitute the magmatic hydrothermal systems which are probably driven by post seafloor spreading volcanoes plutons.