## Calculate the rate of seafloor spreading

Now calculate the spreading rates of the plates on either side of the Juan de Fuca Ridge. Recall that a rate of motion, or speed, is a distance divided by the amount of time it took to cover that distance. Calculate the rates of plate motion in terms of both kilometers per million years and centimeters per year.

26 Nov 2012 restoration to calculate differences in direction and rate of spreading along the Reykjanes,. Kolbeinsey/Aegir and Mohns Ridges. These patterns of stripes provide the history of seafloor spreading. these patterns from the magnetic anomalies they measure with a magnetometer. Where the magnetic wiggles, or anomalies, are broader, the spreading rate has been faster. convection model to calculate the thermal evolution of the mantle, from which we estimate the seafloor spreading rate and the melt generation depth m the  If this assumption is wrong and a spreading rate acceleration near Chron 21 was missed then this would minimize the increase we calculate for the Pacific as  24 Jan 2018 As basalt is erupted from sea floor spreading centers, the iron in the basalt aligns itself to the magnetic pole orientation. Paleomagnetism is simply  can be dated they can be used to measure the rate of seafloor motions. They provide an explanation of how continents can move: Seafloor Spreading.

## describe how paleomagnetism is used to calculate the rate of seafloor spreading? how paleomagnetism is used to calculate the rate of seafloor spreading? Answer Save. 2 Answers. Relevance. Anonymous. 9 years ago. Favorite Answer. Every 50,000 years or so, the magnetic poles of the Earth reverse. As basalt is erupted from sea floor spreading

South Atlantic. North Pacific. Pacific-Antarctic ridge. Found that the South. Atlantic had the fewest changes in spreading rate  26 Sep 2019 Determining the spreading rate (rate of crust accreted to the plate) from the magnetic anomalies is done in several steps. We assume that the  25 Mar 2014 First, we estimate that since the Triassic (250–200 My) until the present, the last 150 My are based on reconstructions of ocean-floor production (7), As the extent of melted volume depends on the ridge spreading rate (48);  Sea floor spreading is the process by which new oceanic crust is formed by the bounce sound signals off of the ocean floor to measure the seafloor depths.

### Harry Hess: One of the Discoverers of Seafloor Spreading sounding gear ( which bounced sound waves off the sea-floor in order to determine the underwater

13 Jul 2015 • Calculate the rate of seafloor spreading using magnetic clues. 21. VISIT, EXPLORE, ANSWER http://www.montereyinstitute.org/noaa/  Sea-floor spreading — In the early 1960s, Princeton geologist Harry Hess data support the theory of sea-floor spreading, and calculate the rate of spreading of

### can be dated they can be used to measure the rate of seafloor motions. They provide an explanation of how continents can move: Seafloor Spreading.

Sea-floor spreading — In the early 1960s, Princeton geologist Harry Hess data support the theory of sea-floor spreading, and calculate the rate of spreading of  Calculate the average rate of spreading for both sides of the Atlantic. Ocean. You will need to double the answers you obtained for the half rates. 4. Repeat the  ACTIVITY 3.7B Calculating the Rate of Seafloor Spreading When the distance that a seafl n. calculated. ACTIVITY 3.8 Hot Spots and Plate Velocities Use Figure   rate. We calculate the length of preserved 3) by rates of spreading (Fig.

## Keywords: seafloor spreading rate; ridge length; magmatic flux; sea-level; atmospheric CO2; Cretaceous; better estimate of the production at oceanic ridges,.

24 Apr 2017 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. 29 Sep 2008 Creation of Oceanic Lithosphere by Seafloor Spreading. Let's determine the average rate of seafloor spreading since the lithosphere at point A  Rates of Seafloor Spreading at Mid-Ocean Ridges: Aim: to determine and compare rates of seafloor spreading at different divergent margins and assess their  Now calculate the total rate (velocity) that the two plates are moving away from each other. This is considered, the rate of sea floor spreading. 5. (2 X half-rate =

26 Sep 2019 Determining the spreading rate (rate of crust accreted to the plate) from the magnetic anomalies is done in several steps. We assume that the  25 Mar 2014 First, we estimate that since the Triassic (250–200 My) until the present, the last 150 My are based on reconstructions of ocean-floor production (7), As the extent of melted volume depends on the ridge spreading rate (48);  Sea floor spreading is the process by which new oceanic crust is formed by the bounce sound signals off of the ocean floor to measure the seafloor depths.