how to calculate sea floor spreading

How To Calculate Sea Floor Spreading?

To calculate the rate of the spreading, you need to use the following formula: the distance the sea floor moved divided by the length of time. This is an important concept for people in the earth sciences field. To complete these calculations, you will need maps showing the Earth’s crust.Apr 24, 2017

What is the average rate of sea floor spreading According to your calculations?

spreading ridge axis we can estimate the spreading rate. Spreading Rate = 1 cm/yr Typical spreading rates range from 1 – 10 cm/yr Distance of the 7th normal stripe (green) is about 40 km from the ridge crest. The age is about 4 million years.

How do you calculate relative spread rate?

How do you calculate km to Ma?

Divide the distance from peak 4 (measured in km) by the age (in Ma) to get the average rate of plate motion away from the ridge. In the case of magnetic anomalies at peaks 4 and 4′, age is 7.0 Ma. The units of plate motion will be kilometers per million years (km/Ma).

How is age of seafloor calculated?

Scientists can determine the age of the seafloor by examining the changing magnetic field of our planet. Every once in a while, the currents in the liquid core, which create the Earth’s magnetic field, reverse themselves: it is called a geomagnetic reversal. This has happened many times throughout Earth’s history.

How do you calculate spreading rate?

It is possible to calculate the spreading rate of one side of a mid-ocean ridge by dividing distance by time (Distance/Time = Rate). This is called a half-spreading rate. Multiply it by 2 to get the full spreading rate for both sides of the ridge.

What is the average rate of sea floor spreading a year?

It spreads about 6-16 centimeters (3-6 inches) every year. There is not an ocean trench at the East Pacific Rise, because the seafloor spreading is too rapid for one to develop! The newest, thinnest crust on Earth is located near the center of mid-ocean ridge—the actual site of seafloor spreading.

How do we calculate distance?

To solve for distance use the formula for distance d = st, or distance equals speed times time. Rate and speed are similar since they both represent some distance per unit time like miles per hour or kilometers per hour. If rate r is the same as speed s, r = s = d/t.

How do you convert kmh to MS?

Tips and Tricks on Convert km/h to m/s

1(kilometer/hour) = 1000(meters) / 3600(seconds) can also be expressed as 1(kilometer/hour) = 5/18 (meters/second), which is its simplified form.
To convert km/h to m/s, directly multiply the given value of speed by the fraction 5/18.

How do you calculate volume?

Whereas the basic formula for the area of a rectangular shape is length × width, the basic formula for volume is length × width × height.

What formula do you use to calculate the rate of movement in this lab?

The equation for speed is simple: distance divided by time. You take the distance traveled (for example 3 meters), and divide it by the time (three seconds) to get the speed (one meter per second). But what practical considerations do you have to make to measure an object’s speed in real life?

What does the rate of spreading dictate?

9: What does the rate of spreading dictate? ~ The rate of spreading indicates by influences/persuades the topography of the ridge.

What is the approximate rate of sea floor spreading in the South Atlantic?

Because of seafloor spreading and the movement of the ocean floor and of the continents outward from the ridge, the Atlantic Basin is widening at an estimated rate of 1 to 10 cm (0.5 to 4 inches) a year.

What is the average spreading rate of the Atlantic Ocean in cm yr?

around 2 cm/yr

(18km/My) * (0.621mi/km) * (5280ft/mi) * (12in/ft) * (1 My/1,000,000yr) = 0.7in/yr Note: The average spreading rate in the Atlantic is around 2 cm/yr. Student answers however may vary here somewhat depending on the sea floor strip they use.

How does the rate of seafloor spreading affect sea level?

The increased rate of seafloor spreading caused sea level to rise. Increasing the rate of seafloor spreading inflates the ridge. Hot, young lithosphere is forming and moving away from the ridge at a faster rate and moves a greater distance from the ridge before it cools and contracts. … So sea level rises.

How do you calculate movement in centimeters per year?

Use the formula (island distance from hotspot ÷ island age) to calculate the rate of movement for 1. each island in the chart, then multiply by . 1 to convert from kilometers per million years to centimeters per year.

What is the spreading rate of oceanic ridges per year?

Global spreading rates range from 10 mm (0.4 inch) per year or less up to 160 mm (6.3 inches) per year. Oceanic ridges can be classified as slow (up to 50 mm [about 2 inches] per year, intermediate (up to 90 mm (about 3.5 inches) per year, and fast (up to 160 mm per year).

Where is the seafloor spreading the fastest?

East Pacific Rise

Some of our recent research involves hydrothermal and structural investigations along Earth’s fastest seafloor spreading center, the 28°S–32°S East Pacific Rise. The fastest present-day seafloor spreading, ~150 km/Myr, occurs along the Pacific-Nazca boundary between the Easter and Juan Fernandez microplates.

What is distance formula Class 10?

The distance between the points P (x₁, y₁)and Q (x₂, y₂) is PQ = √(x₂ − x₁) ² + (y₂ − y₁)² , which is called the distance formula.

How do you calculate distance in kilometers?

How do you find distance in geometry?

1. Distance between two points P(x1,y1) and Q(x2,y2) is given by: d(P, Q) = √ (x2 − x1)2 + (y2 − y1)2 {Distance formula} 2. Distance of a point P(x, y) from the origin is given by d(0,P) = √ x2 + y2.

Which speed is greater 30m s or 30km h?

the correct answer is 30m/s because if you convert it to km/h by multiplying with 18/5 you will get 108 km/h which is greater than 30km/h.

How do you calculate speed in km h?

How do you change km/h to MS 2?

To convert km/hr into m/sec, multiply the number by 5 and then divide it by 18.

How do you calculate volume science?

Measuring volume

To calculate density , the volume of the material must be known.
If the object is a regular shape, the volume can be found by measuring length, breadth and height and using the equation:
Volume = length x breadth x height.

What are 3 ways to calculate volume?

How do you calculate volume of water?

Calculating water volume depends on the shape of the vessel containing the water. Volume calculations for a square or rectangular vessel require you know its length, width and depth for entry into the volume equation, V=L_W_D, where L stands for length, W is the width and D represents depth.

How do you calculate distance and time?

To work out speed, divide the distance of the journey by the time it took to travel, so speed = distance divided by time. To calculate time, divide distance by speed. To get the distance, multiply speed by time. You may see these equations simplified as s=d/t, where s is speed, d is distance, and t is time.

How do we measure motion in terms of distance and time?

Speed is the measure of motion. You can find it by dividing the distance covered by the time it takes to travel that distance.

What is the formula of distance for Class 7?

The formula for calculating distance is d = speed × time.

Distance is the measurement of length between the objects or points.

What is the rate of plate movement from 0 to 7 million years?

The majority of the research shows that the plates move at the average rate of between approximately 0.60 cm/yr to 10 cm/yr.

How many kilometers has the left side of the Pacific Basin spread?

approximately 37 km 3. Pacific: approximately 160 km; North Atlantic: approximately 74 km; South Atlantic: approximately 78 km 4. The South Atlantic Ocean basin’s spreading rate is 3.9 cm/yr.

What is the average rate that the plates are pushing apart at the spreading center in centimeters per year?

The rate of spreading along the Mid-Atlantic Ridge averages about 2.5 centimeters per year (cm/yr), or 25 km in a million years. This rate may seem slow by human standards, but because this process has been going on for millions of years, it has resulted in plate movement of thousands of kilometers.