MYTUTOR SUBJECT ANSWERS

7586 views

Describe the formation of hotspots and explain their relationship to plate movement.

Radioactive deacay in the Earth's core creates extremely high temperatures which heat the lower mantle. When radioactive decay is concentrated, local thermal currents are generated in the lower mantle. Plumes of magma rise from the lower mantle and burn through the Earth's lithosphere to create volanic activity on the Earth's surface. An example of a hotspot Hawaii.The hotspot remains stationary whilst the overlying plate moves. Using the example of Hawaii, the Pacific Plate is moving North-West at a rate of 5-10cm per year. This leaves a chain of extinct volcanoes which are no longer fed by the source of magma. The extinct volcanoes put pressure on the plate and therefore subside and become seamounts. Bends in the island chain show changes in the direction of plate movement. Hotspots are proof of Wagners theory of plate tectonics and plate movement.

Bethan D. A Level Geography tutor, GCSE Geography tutor, GCSE History...

3 years ago

Answered by Bethan, an A Level Geography tutor with MyTutor


Still stuck? Get one-to-one help from a personally interviewed subject specialist

47 SUBJECT SPECIALISTS

£20 /hr

Molly S.

Degree: Geography (Bachelors) - Oxford, St Edmund Hall University

Subjects offered:Geography, History+ 4 more

Geography
History
English Literature
.TSA. Oxford.
-Personal Statements-
-Oxbridge Preparation-

“I am an enthusiastic, flexible tutor, aiming to encourage all students who I tutor to work to the best of their abilities. ”

Rachael M. 13 Plus  English tutor, 11 Plus English tutor, GCSE Englis...
£22 /hr

Rachael M.

Degree: BSc/BA Geography with study abroad (Bachelors) - Exeter University

Subjects offered:Geography, English+ 1 more

Geography
English
-Personal Statements-

“Geography undergraduate with a passion for travel and deepening her knowledge about the world around her”

MyTutor guarantee

£20 /hr

Melissa F.

Degree: Geography (Bachelors) - Durham University

Subjects offered:Geography, Japanese+ 1 more

Geography
Japanese
-Personal Statements-

“Geography student at Durham University. Here to help you boost your confidence and grades!”

About the author

Bethan D. A Level Geography tutor, GCSE Geography tutor, GCSE History...

Bethan D.

Currently unavailable: no new students

Degree: Geography BSc (Bachelors) - Durham University

Subjects offered:Geography, Science+ 2 more

Geography
Science
History
Biology

“Second year Geography student at Durham University. Passionate about Geography and Economics at GCSE and A-Level.”

MyTutor guarantee

You may also like...

Posts by Bethan

Describe how seismic waves and earthquakes can be measured.

Describe the formation of hotspots and explain their relationship to plate movement.

Outline the features of seismic waves.

Other A Level Geography questions

Explain why it is difficult to measure development. (10 marks)

Explain the formation of a stump

What are the characteristics of the temperate deciduous woodland biome?

What factors affect the demand for a resource?

View A Level Geography tutors

We use cookies to improve your site experience. By continuing to use this website, we'll assume that you're OK with this. Dismiss

mtw:mercury1:status:ok