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Laabri

Lesson 4.14 Plate Tectonics and the Carbon Cycle

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Last updated about 1 year ago
15 Nsɛmmisa

Read the article below and answer the questions about the text. This article is a popular science version of a scientific article. The embedded video shows the model that came from the research.

The actual article is

Evolution of Earth’s tectonic carbon conveyor belt

R. Dietmar Müller, Ben Mather, Adriana Dutkiewicz, Tobias Keller, Andrew Merdith, Christopher M. Gonzalez,Weronika Gorczyk & Sabin Zahirovic

Nature volume 605, pages629–639 (2022)

The video blow shows plate motions, carbon storage within tectonic plates and carbon degassing along mid-ocean ridges and subduction zones through time. Our carbon model shows these processes alone cannot explain global cooling in the Cenozoic Era. The effects of rock erosion, not shown here, played a key role. Arrows indicate plate motion speed.

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1.

What role do tectonic plates play in the carbon cycle?

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6.

The speed that the plates move is related to the amount of carbon released into the atmosphere

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Question 12
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Questions 11 & 10
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11.

How does the pattern of carbon release change as the plates move? What are three things that you noticed?

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13.

The model shows an increase in carbon stored in the oceanic plates because of

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2.

How did the Cretaceous hothouse climate relate to tectonic plate movement?

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3.

What atmospheric CO₂ level characterized the Cretaceous hothouse?

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4.

What significant climate transition began in the Cenozoic Era

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5.

Where is carbon released into the atmosphere

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7.

Besides volcanism, other major processes involved in cycling carbon are

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8.
Mmuae Afoforo a Wobɛpaw:
mountains
collide
islands
diverge
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9.
Mmuae Afoforo a Wobɛpaw:
chemical
sediments
buried
mountains
erosion
sedimentation
islands
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12.

The areas in the model that are releasing the most carbon are colored

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10.

In the model, the most carbon is being released at

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14.

Summarize the model presented in the article for why atmospheric carbon dioxide decreased during the Cenezoic Era. (You should have two major mechanisms)

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15.
Mmuae Afoforo a Wobɛpaw:
absorbs
volcanoes
releases
carbon