Write a bulleted list for the first topic and narrative for the second, in your own words, on the following topics. Make a bulleted list in chronological order of the main developm... Write a bulleted list for the first topic and narrative for the second, in your own words, on the following topics. Make a bulleted list in chronological order of the main developments in the last century leading up to the theory of modern plate tectonics beginning with Continental Drift. Identify which one of the main developments you think was the most influential in the acceptance of modern plate tectonics. Explain your answer. Cite your sources — include any websites or citations you incorporated in your post.
Understand the Problem
The question is asking to create a bulleted list that outlines the key developments in the theory of modern plate tectonics over the past century and to narrate which development was the most influential in gaining acceptance for this theory. The response must adhere to a word limit of 250 words and require citations from credible sources.
Answer
Key developments include: Wegener's theory (1912), Mid-Atlantic Ridge discovery (1950s), magnetic striping on ocean floors (1960s), sea-floor spreading hypothesis (1960s), modern plate tectonics theory (late 1960s). Sea-floor spreading was most influential.
The main developments leading up to modern plate tectonics include: 1. Alfred Wegener's Continental Drift theory (1912); 2. Discovery of the Mid-Atlantic Ridge and oceanic ridges (1950s); 3. Magnetic striping and symmetry on ocean floors (1960s); 4. Sea-floor spreading hypothesis (1960s); 5. Plate tectonics theory acceptance (late 1960s). The discovery of sea-floor spreading was crucial as it provided a mechanism for Wegener's ideas, making plate tectonics widely accepted. Let's Talk Science
Answer for screen readers
The main developments leading up to modern plate tectonics include: 1. Alfred Wegener's Continental Drift theory (1912); 2. Discovery of the Mid-Atlantic Ridge and oceanic ridges (1950s); 3. Magnetic striping and symmetry on ocean floors (1960s); 4. Sea-floor spreading hypothesis (1960s); 5. Plate tectonics theory acceptance (late 1960s). The discovery of sea-floor spreading was crucial as it provided a mechanism for Wegener's ideas, making plate tectonics widely accepted. Let's Talk Science
More Information
Alfred Wegener's theory was initially dismissed but laid groundwork for modern plate tectonics. Sea-floor spreading, confirmed by symmetrical magnetic stripes on the ocean floor, provided a mechanism that supported Wegener's initial idea of continent movement.
Tips
A common mistake is to think Wegener's theory was quickly accepted; it actually took many years and additional evidence, such as sea-floor spreading, to gain wide acceptance.
Sources
- Continental Drift and Plate Tectonics - Let's Talk Science - letstalkscience.ca
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