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Chapter 9: Problem 46

Search the World Wide Web for information about Rodinia, the supercontinent that predated Pangaea. When did this supercontinent form? When did it break apart? Do we have any evidence of supercontinents that predated Rodinia? Why or why not?

Short Answer

Expert verified
Rodinia likely formed between 1.3 billion and 900 million years ago and started to break apart approximately 750 million years ago. While there is some evidence for older supercontinents such as Columbia/Nuna and Kenorland, the evidence is not as robust, primarily due to geological activities like plate tectonics and erosion that may have modified or erased evidence over time.

Step by step solution

01

Research Rodinia

Use reliable resources, such as academic journals, scholarly databases, or reputable online media sources focusing on the subject, to find information about Rodinia, its formation, and when it started to break apart.
02

Investigate the timeline

Make note of the time period when Rodinia was formed and when it started to break apart based on the evidence gathered from the research.
03

Explore evidence for older supercontinents

Now, search for information about any supercontinents that might have existed before Rodinia. Write down any evidence or arguments found on the topic.
04

Reason for evidence or lack thereof

Reflect on and analyze why there is or isn't evidence of supercontinents older than Rodinia. Consider limitations in technology, research methods, or geologic processes that may impact the availability of such evidence.

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