New ocean floor is created in the mid-ocean ridges when twothetowards theIt will thenplate, it sinks downwards, oris why it moves under the continental plate. Aon the ocean floor, and it iscontinental #cool :: denseon the sea floor. As it cools, it forms newpull apart.forms at therises from the mantle and comes out ofAs the oceanic plateback into the mantle. The oceanic plate is moreIn summary, new oceanic crust ismade :: magmaback into the mantle at the edges of continents.:: divergent boundaries:: oceanic plates :: recycled ::rift :: subducts :: subduction zone:: moves :: oceanic crust:: trench, whichat

Answered: New ocean floor is created in the…

Applications and Investigations in Earth Science (9th Edition)

9th Edition

ISBN:9780134746241

Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa

Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa

Chapter1: The Study Of Minerals

Section: Chapter Questions

Problem 1LR

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Question

New ocean floor is created in the mid-ocean ridges when two
the
towards the
It will then
plate, it sinks downwards, or
is why it moves under the continental plate. A
on the ocean floor, and it is
continental #cool :: dense
on the sea floor. As it cools, it forms new
pull apart.
forms at the
rises from the mantle and comes out of
As the oceanic plate
back into the mantle. The oceanic plate is more
In summary, new oceanic crust is
made :: magma
back into the mantle at the edges of continents.
:: divergent boundaries
:: oceanic plates :: recycled ::rift :: subducts :: subduction zone
:: moves :: oceanic crust
:: trench
, which
at

Expert Solution

Step 1

Plate tectonics or the entire system of plate motions comprises movement of Earth's crust and part of upper mantle together as rigid lithosphere over the asthenosphere and various geological events involved with it.

Movement of plates creates mainly three types of plate boundaries -

Divergent boundary, where two plates move away from each other,
Convergent boundary, where two plates move towards each other, and
Transform boundary, where two plates move past each other along a strike-slip fault.

While 'rift' is a geological feature mainly associated with faulting in divergent plate boundaries, 'trench' is solely associated with convergent boundaries denoting a deep, steep and linear depression on the lithosphere.