The geological features that enable geologists to recognize ancient continental rifting and ancient subduction zones.
Answer to Problem 1RQ
Block faults, mafic and felsic igneous rocks, and thick sedimentary sequences within fault block basins are some geologic features that enable the geologists to recognize ancient continental rifting. The Andes of South America are associated with the Pacific ring of fire. These mountain ranges consist of volcanoes that cover most of the Pacific Ocean and can be used by geologists to recognize ancient subduction zones.
Explanation of Solution
The geologic features that enable the geologists to recognize ancient continental rifting are as follows:
(i) The margins of Red Sea show geologic features that can be used to recognize the early stages of continental rifting. Much of the topography is the result of block faults and the uplifts created by the high rates of heat flow from mantle.
(ii) Thick sedimentary sequences within fault block basins consist of lake deposits, coarse terrestrial deposits, and evaporates followed by oceanic sediments.
(iii) Continental rifting is also characterized by mafic dikes, sills and flood basalts.
The features that enable the geologists to recognize ancient subduction zones are as follows:
(i) The Andes of South America are associated with the Pacific ring of fire composed of deep-sea trench volcanoes. These volcanoes encircle most of the Pacific Ocean.
(ii) Deep-sea trenches are the site, where the slabs of lithosphere descend into asthenosphere. These trenches are associated with two geologic features namely volcanoes and deep-focus earthquakes. Both shallow and deep-sea earthquakes are common, near trenches.
Want to see more full solutions like this?
Chapter 9 Solutions
EBK EARTH SYSTEM HISTORY
- Between World Wars I and II, The United States ________. Was a member of the League of Nations, and played a major role Was not a member of the League of Nations, and played a major role Was a member of the League of Nations, and did not play a major role Was not a member of the League of Nations, and did not play a major rolearrow_forwardDuring which of the following periods did Canada and the U.S have the most restrictive immigration laws.arrow_forwardThe view that ethnic distinctions would disappear as the children and grandchildren of immigrants became integrated into American society is called what?arrow_forward
- Between 1890 and 1924, most immigrants to North America came from what part of the world? Northern and Western Europe Southern and Eastern Europe East Asia and Africa South Asiaarrow_forwardIs this true? The first recorded use of the phrase "when pigs fly" in print is in a 1616 play by Ben Jonson called "The Devil is an Ass," in which a character says, "When pigs fly, good-night!!"arrow_forwardThe author Mary Wollstonecraft Shelley composed her novel Frankenstein, or the Modern Prometheus to tell the story of a scientist who creates a monster that eventually turns against humans as a result of his loneliness and desire for acceptance. Which statement below expresses how this summary of Shelley's story connects to the Enlightenment period? People must explore the furthest reaches of science and technology. Science and modern technology must be used to improve the lives of all creatures, not just to further scientific advancements. The dangers of science and modern inquiry are greater than the benefits that can result from advances and inventions. Fame and wealth can be earned by those who use rational thought and investigation to improve society.arrow_forward
- Read these sentences. Victims of identity theft often file their personal logins in a safe location.I still need to wordsmith my social studies report.I’m going to send my brother an e-mail as soon as I get home.We tried to text our friends from the school parking lot. Which underlined word is an example of how language has changed over time? e-mail wordsmith text loginsarrow_forwardCriminological theory in drunk driving public policies consider how the theory explains the previously identified influence of the trends or court cases on the development of the policies.arrow_forwardA primary source is an original document or artifact that comes from the period of time being studied. Someone from that time period actually wrote, created, or used it. Examples of primary sources include diaries, letters, oral histories, eyewitness accounts, and artifacts such as tools, clothes, and laws. Laws that protect intellectual property are critical to the economy. Find and read a law (a primary source) that protects intellectual property, such as patents, trademarks, or copyright laws. Upload your work in the space below: Identify the law you chose. Explain what parts specifically protect such property. Use specific quotes from the law to prove your points. Consider how the language of the law is structured to be clear and concise. Explain how the language used in the law protects intellectual property. Cite your source.arrow_forward
- The author Mary Wollstonecraft Shelley composed her novel Frankenstein, or the Modern Prometheus to tell the story of a scientist who creates a monster that eventually turns against humans as a result of his loneliness and desire for acceptance. Which statement below expresses how this summary of Shelley's story connects to the Enlightenment period? People must explore the furthest reaches of science and technology. Science and modern technology must be used to improve the lives of all creatures, not just to further scientific advancements. The dangers of science and modern inquiry are greater than the benefits that can result from advances and inventions. Fame and wealth can be earned by those who use rational thought and investigation to improve society.arrow_forwardIs it true that the first use of the phrase "when pigs fly" in print is in a 1616 play by Ben Jonson called "The Devil is an Assassin," in which a character says "when pigs fly, good-night!"arrow_forwardExplore the concept of rationalism in philosophy and how it differs from empiricism. How do rationalists believe we acquire knowledge, and what are some examples of innate ideas?arrow_forward