How The Earth Was Made San Andreas Fault Worksheet Answers

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How was made San Andreas Fault?

The San Andreas Fault was born about 30 million years ago in California when the Pacific Plate and the North America plate first met. … The new configuration meant the two plates slid past one another instead of crashing into each other a boundary called a strike-slip fault.

How did the San Andreas Fault form quizlet?

Birth of the San Andreas Fault. The Pacific Plate came in contact with the North American Plate and formed a strike slip boundary. This contact happened after the subduction of the Farallon plate.

How do plate tectonics explain the creation of the San Andreas Fault?

According to the theory of plate tectonics the San Andreas Fault represents the transform (strike-slip) boundary between two major plates of the Earth’s crust: the Northern Pacific to the south and west and the North American to the north and east.

What is the San Andreas Fault quizlet?

What is the San Andreas Fault? A transform boundary. 810 miles of transform boundary in California. Where the North American Plate and Pacific Plate slide past each other. You just studied 13 terms!

What describes how the San Andreas Fault formed on Earth at a transformed boundary?

The San Andreas Fault is where the Pacific plate collides with the North American plate. this is a convergent boundary. The two plates hit an angle in California. This forms a transverse fault in stead of the subduction zone usually found where an Ocean Plate and a Continatial plate meet.

What is the San Andreas Fault an example of?

strike-slip fault – a fault on which the two blocks slide past one another. The San Andreas Fault is an example of a right lateral fault.

What is California’s San Andreas Fault identified as?

The San Andreas Fault marks the junction between the North American and Pacific Plates. The fault is 1300 km long extends to at least 25 km in depth and has a north west-south east trend. It is classified as a right lateral (dextral) strike-slip fault.

What type of plate boundary includes the San Andreas Fault quizlet?

Terms in this set (8)

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The San Andreas Fault is the boundary between two of Earth’s tectonic plates: the Pacific Plate and the North American Plate. This boundary is a transform boundary. The Pacific Plate is moving to the north and west while the North American Plate is moving to the south and east.

How do earthquakes occur along the San Andreas Fault?

The Pacific Plate (on the west) moves northwestward relative to the North American Plate (on the east) causing earthquakes along the fault. The San Andreas is the “master” fault of an intricate fault network that cuts through rocks of the California coastal region.

What tectonic plate caused the San Andreas Fault?

Pacific Plate

The Pacific Plate (on the west) slides horizontally northwestward relative to the North American Plate (on the east) causing earthquakes along the San Andreas and associated faults.

Where does the San Andreas Fault start?

The San Andreas Fault System which crosses California from the Salton Sea in the south to Cape Mendocino in the north is the boundary between the Pacific Plate (that includes the Pacific Ocean) and North American Plate (that includes North America).

What type of plate interaction produces the San Andreas Fault?

The San Andreas Fault is a continental transform fault that extends roughly 1 200 kilometers (750 mi) through California. It forms the tectonic boundary between the Pacific Plate and the North American Plate and its motion is right-lateral strike-slip (horizontal).

What causes earthquakes along the San Andreas Fault zone in California quizlet?

The San Andreas fault forms the transform plate boundary between the Pacific and North American plates. … Movement along faults causes earthquakes.

Why do earthquakes occur near the San Andreas Fault quizlet?

Why do earthquakes occur along the San Andreas Fault? two plates meet at the San andreas Fault. sideways motion between the plates causes earthquakes to occur there. A mid-ocean ridge is a mountain range on the ocean floor where two plates are separating.

What are uplifted blocks called?

A block that has been relatively uplifted between two normal faults that dip away from each other is called a horst.

How was the San Andreas Fault formed 1 point Brainly?

The San Andreas Fault was born about 30 million years ago in California when the Pacific Plate and the North America plate first met. … The new configuration meant the two plates slid past one another instead of crashing into each other a boundary called a strike-slip fault.

What makes the San Andreas Fault important?

The San Andreas Fault is the most famous fault in the world. Its notoriety comes partly from the disastrous 1906 San Francisco earthquake but rather more importantly because it passes through California a highly-populated state that is frequently in the news. … Some faults are many miles long.

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Is the San Andreas Fault divergent or convergent?

Tectonic setting of the San Andreas Fault (transform plate boundary) in California the subduction zone (convergent plate boundary: oceanic-continental collision) in the Pacific Northwest.

How many earthquakes has the San Andreas Fault caused?

Public domain.) There are only two large known historic earthquakes on the San Andreas Fault in southern CA the most recent in 1857 and before that one in 1812.

What would happen if San Andreas Fault breaks?

Narrator: Parts of the San Andreas Fault intersect with 39 gas and oil pipelines. This could rupture high-pressure gas lines releasing gas into the air and igniting potentially deadly explosions. Stewart: So if you have natural-gas lines that rupture that’s how you can get fire and explosions.

Can you see the San Andreas Fault?

The San Andreas Fault begins near the Salton Sea runs north along the San Bernardino Mountains crosses Cajon Pass and then runs along the San Gabriel Mountains east of Los Angeles. The mud pots near the Salton Sea are a result of its action but your best bet to see the Southern San Andreas Fault is at Palm Springs.

Where are the California fault lines?

The San Andreas Fault is the sliding boundary between the Pacific Plate and the North American Plate. It slices California in two from Cape Mendocino to the Mexican border. San Diego Los Angeles and Big Sur are on the Pacific Plate. San Francisco Sacramento and the Sierra Nevada are on the North American Plate.

How many fault lines are in California?

There are hundreds of identified faults in California about 200 are considered potentially hazardous based on their slip rates in recent geological time (the last 10 000 years).

Was San Andreas real?

No. The San Andreas is actually mostly on land. Big tsunamis are created by faults underwater. The San Andreas fault is also vertical.

What type of stress is most likely to occur at this boundary the San Andreas Fault?

Shear Stress Friction between the plates grinding past one another produces the stress. Shear stress is associated with transform faults which may also be called strike-slip or slip-strike faults. Perhaps the most well-known example of shear stress is the strike-slip fault known as the San Andreas in California.

What type of plate boundary is found in California quizlet?

California sits on the most studied continental transform plate boundary.

What determines the type of fault that forms at a plate boundary?

Fault categories

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The sense of stress determines the type of fault that forms and we usually categorize that sense of stress in three different ways: compression tension and. shear.

What causes tectonic plates to move?

Tectonic shift is the movement of the plates that make up Earth’s crust. … The heat from radioactive processes within the planet’s interior causes the plates to move sometimes toward and sometimes away from each other. This movement is called plate motion or tectonic shift.

How old is the San Andreas fault?

about 28 million years old
The San Andreas fault is about 28 million years old. Back then California didn’t exist at least not recognizably so.

Where is the biggest fault line in the world?

The Ring of Fire is the largest and most active fault line in the world stretching from New Zealand all around the east coast of Asia over to Canada and the USA and all the way down to the southern tip of South America and causes more than 90 percent of the world’s earthquakes.

What natural disaster can the San Andreas fault cause?

Tsunami Science

Local tsunamis might be generated along the California coast if the shaking from an earthquake on the San Andreas fault triggers underwater landslides or if there is slip on a smaller offshore fault.

What type of rock is the San Andreas Fault?

It is rare to have measurements of physical properties and observations of rock properties (core mineralogy alteration phases and deformation textures) within the same fault zone at in situ conditions.

How are fires caused by earthquakes?

Earthquake fires start when electrical and gas lines are dislodged due to the earth’s shaking. Gas is set free as gas lines are broken and a spark will start a firestorm.

What causes most earthquakes in California quizlet?

Earthquakes in California are the result of widening along the San Andreas Fault which will eventually cause western California to sink into the ocean. Earthquakes in California are always above magnitude 7.5 because the San Andreas is such a large fault.

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How the Earth was made.

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