Explain how the study of oxygen isotopes in the skeletons of marine organisms provides a record of past ocean temperatures, salinities, and volumes of glacial ice

Answer the following questions with at least 3-5 complete sentences

Discuss the evidence Wegener used to support his idea of continental drift

What a passive margin is and how it differs from an active margin?

Name and describe three types of plate boundaries

Define the terms strike and dip

Describe three ways that an anticline can be identified on a geologic map

What are positive and negative feedback mechanisms? Give an example of each kind of feedback

Explain how the study of oxygen isotopes in the skeletons of marine organisms provides a record of past ocean temperatures, salinities, and volumes of glacial ice

Explain how the early Earth was accreted in the early solar system and then differentiated into core, mantle, and crust

What is the “Snowball Earth” hypothesis? Cite one argument for and one argument against this hypothesis?

Explain how periodic reversals in Earth’s magnetic field led to conclusive evidence for seafloor spreading

What controls the ratio of magnesium to calcium in the ocean?

Describe the photosynthesis-respiration cycle

What is the significance of the late Precambrian “soft-bodied” Ediacara fauna of Australia?

Describe the formation of the two major rock associations known as granulites and greenstones What are the implications of these associations for the early Earth?

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