Ocean review chapter 2

What is the age of the oldest ocean floor?

180 million years

The flipping of earths magnetic field takes an average of about ______ years

5,000

The San Andreas Fault is an example of _______ plate boundary

A Continental transform

The east Africa Riff valleys are an example of ______plate boundary

A continental Continental divergent

The Himalaya mountains are an example of _____ plate boundary

A continental continental convergent

The first person to advance the idea of mobile, continents, or continental drift was _____

Alfred Wegener

The Peru Chile trench is an example of ______plate boundary

And oceanic continental convergent

The Aleutian islands are an example of ______ plate boundary

And oceanic oceanic convergent

Which of the following is a characteristic of ocean continental convergent plate boundaries

Andesitic volcanoes

The largest resist in the world is the great barrier reef. Where is it located?

Australia

What is the motion of a declining stage of the Wilson cycle?

Convergence subduction

The Pacific Ocean is an example of the ________stage of the Wilson cycle

Declining

What is the motion of a juvenile stage of the Wilson cycle?

Divergence

The mid Atlantic Ridge is an example of a _____

Divergent plate boundary

Which of the following Wilson cycle stages with the east African Rift valleys be considered

Embryonic

Underwater volcanic peaks that resemble volcanoes on land, except that they are flat on top or called ______

Guyots

Which word doesn't fit? Sea floor spreading Ice age Age of the ocean floor Distribution of earthquakes Paleomagnetism

Ice Age

Which group of rocks is affected by earths magnetic field

Igneous

Moving from an oceanic ridge to an oceanic trench, the thickness of the lithosphere ________

Increases in proportion to the distance

Which of the following Wilson cycle stages would the Red Sea be considered?

Juvenile

Tectonic plates are pieces of the ____ that float on the more fluid ______ below

Lithosphere, asthenosphere

Which of the following Wilson cycle stages with the Atlantic and arctic oceans be considered

Mature

In the ocean, where are the youngest rocks found?

Mid Ocean ridges

The Hawaiian islands are located, where the Pacific plate is _______

Moving over a hotspot or mantle plume

Chains of extinct volcanoes that are progressively older as one travels away from a hotspot or called _____

Nemataths

Most large earthquakes occur along, which of the following

Ocean trenches

Which is the largest tectonic plate?

Pacific

The study of historical changes of continental shapes and positions is called _______

Paleogeography

What was the name for the supercontinent about 200 million years ago?

Pangaea

Large volcanoes on the seafloor that are cone shaped on top because they never reached sea level are called _______

Seamounts

______ is generated by the pull of the weight of a plate as it sinks underneath an overlying plate

Slap PULL

In 50 million years, the Pacific Ocean will become______ in the Atlantic ocean will become __________

Smaller, larger

The fossil remains of mesosaurus were found only on which two landmasses

South America and Africa

Which word doesn't fit? Vine Wegner Miller Matthew's Hess

Stanley Miller

Deep ocean trenches are associated with _____

Subduction zones

Volcanoes on the seafloor that are flat topped because of wave erosion are called______

Tablemounts

Which of the following statements is true of the lithosphere?

The lithosphere is composed of the crust and the uppermost portion of the mantle

Frederick Vine and Drummond Matthews determined the new ocean floor was being produced at ocean ridges by examining____

The magnetic pattern of rocks on the seafloor

What was the one line of evidence that Alfred Wegner could not explain with continental drift

The mechanism for the movement of the plates

Alfred Wegner's continental drift hypothesis, received much hostile and criticism and ridicule from the scientific community because which of the following

The mechanism he proposed for the movement of the continents

Harry hess suggested which of the following

The volcanic mid ocean ridges were formed due to the seafloor spreading

Which of the following is a characteristic of continental continental convergent plate boundaries?

Uplifted mountain ranges

Which of the following is a characteristic of oceanic oceanic convergent plate boundaries?

Volcanic island arcs

Tectonic plates move about as fast as

Your fingernails grow

Plate convergence begins during which stage of the Wilson cycle

declining