What Is Associated With Mid Ocean Ridges

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What Is Associated With Mid Ocean Ridges?

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 is associated with mid-ocean ridges quizlet?

A mid-ocean ridge or mid-oceanic ridge is an underwater mountain range formed by plate tectonics. This uplifting of the ocean floor occurs when convection currents rise in the mantle beneath the oceanic crust and create magma where two tectonic plates meet at a divergent boundary.

What type of stresses are associated with a mid-ocean ridge?

Compressive Stress between Two Mid-Ocean Ridges.

Which is characteristic of mid-oceanic ridges?

A mid-ocean ridge (or mid-oceanic ridge) is an underwater mountain range typically having a valley known as a rift running along its axis formed by plate tectonics. This type of oceanic ridge is characteristic of what is known as an oceanic spreading center.

What is an example of a mid-ocean ridge?

Mid-ocean ridges form where two tectonic plates are pulling apart also called seafloor spreading. … The Mid-Atlantic Ridge which is spreading one to two inches a year along with the East Pacific Rise which is spreading two to six inches a year are two examples of very long mid-ocean ridges.

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Which of the following is associated with ocean ridges?

Chapters 9-16

Question	Answer
Which of the following is associated with ocean ridges?	all of these
An isolated remnant of wave erosion is a ________.	sea stack
Which one of the following would you NOT associate with turbidity currents?	formation of seamounts
Which of the following is a tidal current?	both flood and ebb tide

What are two processes that occur at mid-ocean ridges?

There are two processes ridge-push and slab-pull thought to be responsible for the spreading seen at mid-ocean ridges and there is some uncertainty as to which is dominant. Ridge-push occurs when the weight of the ridge pushes the rest of the tectonic plate away from the ridge often towards a subduction zone.

Which type of stress is associated with the convergent plate boundary?

Compression

Compression is the most common stress at convergent plate boundaries. Rocks that are pulled apart are under tension. Rocks under tension lengthen or break apart.

Which type of stress produces landforms like mountains ranges and volcanoes?

In vertical compression stress the crust can thin out or break off. The force of compression can push rocks together or cause the edges of each plate colliding to rise. Mountains are a result of high-impact compression stress caused when two plates collided.

What are the types of stress in plate boundaries?

Stress is the force applied to a rock and may cause deformation. The three main types of stress are typical of the three types of plate boundaries: compression at convergent boundaries tension at divergent boundaries and shear at transform boundaries.

Which of the following are not features associated with mid-ocean ridges?

(a)Mid-ocean ridge is not associated with a convergent plate boundary. Explanation: Mid-ocean ridges form near divergent plate boundaries where the new ocean bottom is formed when tectonic plates separate. The Molten rock rises to the seafloor as the plates separate resulting in massive basalt volcanic eruptions.

What is the function of the Mid Oceanic Ridge?

Mid-ocean ridges are the longest largest and most voluminous magmatic environment on Earth. Ridges are the site of new lithospheric and crustal production that may be subsequently subducted into the mantle and recycled or involved in magma-producing dehydration reactions that slowly build up continental crust (Fig.

What led to the discovery of mid-ocean ridges?

Kinda like submarines that mapped the ocean floor and provided data on the topographic features of the ocean basin. This led to the discovery of mid-ocean ridges. … Hess developed the idea that oceanic crust forms along mid-ocean ridges and spreads out laterally away from the ridges.

What are the 3 types of mid ocean ridges?

Mid-Ocean Ridges: Types of Ridges

Axial Ridge.
Magnetics & Polarity.
Fast/Slow Spreading.

Where is the Mid Oceanic ridge?

Atlantic Ocean

The Mid-Atlantic Ridge is a mid-ocean ridge (a divergent or constructive plate boundary) located along the floor of the Atlantic Ocean and part of the longest mountain range in the world.

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What is a mid-ocean ridge simple definition?

Definition of mid-ocean ridge

: an elevated region with a central valley on an ocean floor at the boundary between two diverging tectonic plates where new crust forms from upwelling magma.

Why are oceanic ridges elevated quizlet?

Where in the oceans are biological communities thriving without sunlight? … Why are mid ocean ridges elevated compared to the surrounding ocean floor? Because newly formed lithosphere is hotter and therefore less dense than the surrounding rocks. Which of the following is not part of an ophiolite complex?

Which of the following is a Biogenous sediment?

Biogenous sediments (bio = life generare = to produce) are sediments made from the skeletal remains of once-living organisms. These hard parts include a wide variety of particles such as shells of microscopic organisms (called tests) coral fragments sea urchin spines and pieces of mollusc shells.

Which one of the following salts is most abundant in seawater?

Sodium chloride is the most abundant salt in sea water.

Which of the following increases with distance from the Mid oceanic ridge?

The age density and thickness of oceanic crust increases with distance from the mid-ocean ridge.

Why are mid-ocean ridges elevated?

At the ridge new crust forms by igneous intrusion and extrusion. … Since hot rocks are in a more expanded state and then contract as they cool (as they spread away from the ridge) the midocean ridges stand up high above the surrounding seafloor. The seafloor depth increases with distance away from the midocean ridges.

Which type of boundary does ridge push occur?

divergent boundary
The ridge-push force is created by tectonic plates moving away from a divergent boundary due to their higher elevation than the surrounding ocean floor. These forces are influenced by the high rates of volcanism occurring beneath mid-ocean ridges.

What type of convergent boundary causes mountains?

When two continental plates converge they smash together and create mountains. The amazing Himalaya Mountains are the result of this type of convergent plate boundary. The Appalachian Mountains resulted from ancient convergence when Pangaea came together.

What type of stress is placed on folds?

When rocks deform in a ductile manner instead of fracturing to form faults or joints they may bend or fold and the resulting structures are called folds. Folds result from compressional stresses or shear stresses acting over considerable time.

What landforms are created in oceanic continental convergence?

The subducting plate causes melting in the mantle above the plate. The magma rises and erupts creating volcanoes. These coastal volcanic mountains are found in a line above the subducting plate (Figure below). The volcanoes are known as a continental arc.

What is the principal type of stress is applied to crustal rocks at the Mid Ocean Ridge?

What is the principal type of stress is applied to crustal rocks at the mid-ocean ridge? … Lengthening and thinning of the rock. If you snap a “green” stick (freshly removed from a tree) into two pieces it will first undergo __________ deformation then __________ deformation.

What are the three types of folds?

There are three basic types of folds (1) anticlines (2) synclines and (3) monoclines.

How folds and faults are formed?

When the Earth’s crust is pushed together via compression forces it can experience geological processes called folding and faulting. Folding occurs when the Earth’s crust bends away from a flat surface. … Faulting happens when the Earth’s crust completely breaks and slides past each other.

Do folds create mountains?

Fold mountains are created where two or more of Earth’s tectonic plates are pushed together. At these colliding compressing boundaries rocks and debris are warped and folded into rocky outcrops hills mountains and entire mountain ranges. Fold mountains are created through a process called orogeny.

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What is rock faulting?

A fault is a fracture or zone of fractures between two blocks of rock. Faults allow the blocks to move relative to each other. … Earth scientists use the angle of the fault with respect to the surface (known as the dip) and the direction of slip along the fault to classify faults.

Are plates associated with plate tectonics?

Plate tectonics is the theory that Earth’s outer shell is divided into large slabs of solid rock called “plates ” that glide over Earth’s mantle the rocky inner layer above Earth’s core.

Is a defining feature of an oceanic plate?

Oceanic plates are mafic in nature composed of basalt rock and its coarse-grained equivalent gabbro both rich in iron magnesium and calcium. In contrast continental plates are felsic in nature dominated by granitic rock with its abundant silica aluminum sodium and potassium.

Which of the following features are associated with convergent plate boundaries?

Explanation: Deep ocean trenches volcanoes island arcs submarine mountain ranges and fault lines are examples of features that can form along plate tectonic boundaries. Volcanoes are one kind of feature that forms along convergent plate boundaries where two tectonic plates collide and one moves beneath the other.

Which of the following features is associated with a convergent plate boundary?

Deep ocean trenches volcanoes island arcs submarine mountain ranges and fault lines are examples of features that can form along plate tectonic boundaries. Volcanoes are one kind of feature that forms along convergent plate boundaries where two tectonic plates collide and one moves beneath the other.