What do you expect to find at a mid ocean?
Mid-ocean ridges occur along divergent plate boundaries, where new ocean floor is created as the Earth’s tectonic plates spread apart. As the plates separate, molten rock rises to the seafloor, producing enormous volcanic eruptions of basalt.
Which discovery did they make about rocks in relation to a mid-ocean ridge?
When scientists analyzed drilling samples from the Glomar Challenger study, which discovery did they make about rocks in relation to a mid-ocean ridge? Rocks closer to the ridge are newer. Rocks closer to the ridge contain more iron.
What technology did scientists use in the mid 1900s to map the mid-ocean ridge?
sonar
What led to the discovery of mid-ocean ridges quizlet?
Terms in this set (134) a process that occurs at mid-ocean ridges, where new oceanic crust is formed through volcanic activity and then gradually moves away from the ridge. This led to the discovery of mid-ocean ridges. These underwater mountain ranges encircling the planet form as Earth’s plates separate.
What is responsible for mid ocean ridges quizlet?
How do mid-ocean ridges form? Underneath the ocean, deep in the earth convection currents bring molten material up to the upper mantle. This material rises through faults (cracks) between oceanic plates that are moving away from one another. This material fills the cracks, hardens, and forms new crust.
How do tectonic plates move at mid ocean ridges quizlet?
Magma is pushed up through the crust along the mid ocean ridge. As the magma is the thrust up and hardens it forms new crust and the ocean floor on both sides of the mid- ocean ridge move outward. When new crust is formed along the mid-ocean ridge, the old rock/crust is pushed out way from the ridge.
What happens to the plates at a mid ocean ridge quizlet?
Magma is pushed up through cracks in the crust along the mid-ocean ridge. As the magma is pushed up and hardens it forms new crust and the ocean floor on both sides of the mid-ocean ridge move outward.