Tectonic Plates Quiz
... 1. Match the appropriate pair of words to the blanks in the sentence that follows. The _________ lithosphere is approximately _____ thick. a) rigid; 200 kilometers c) plastic; 200 kilometers b) rigid; 2900 kilometers d) plastic; 2900 kilometers 2. The lithosphere is composed of which combination of ...
... 1. Match the appropriate pair of words to the blanks in the sentence that follows. The _________ lithosphere is approximately _____ thick. a) rigid; 200 kilometers c) plastic; 200 kilometers b) rigid; 2900 kilometers d) plastic; 2900 kilometers 2. The lithosphere is composed of which combination of ...
File
... 2. What is the main idea of this theory? 3. What causes the plates of the earth to move? 4. What causes magma to move in the mantle? 5. What is sea floor spreading? Who proposed ...
... 2. What is the main idea of this theory? 3. What causes the plates of the earth to move? 4. What causes magma to move in the mantle? 5. What is sea floor spreading? Who proposed ...
The Theory of Continental Drift
... Formation of continental crust • Buoyant Material rises to the surface of a molten Earth, • Continental (Felsic) material is less dense, more buoyant, therefore rises and “floats Higher” ...
... Formation of continental crust • Buoyant Material rises to the surface of a molten Earth, • Continental (Felsic) material is less dense, more buoyant, therefore rises and “floats Higher” ...
Chapter Two Geography of the Ocean Basins Figure 02_02
... • He suggested that all continents had been joined in a single supercontinent which he named Pangaea. • He proposed that Pangaea began breaking up 180 million years ago. • At the time, his proposal was not widely accepted; he could not explain HOW this occurred. ...
... • He suggested that all continents had been joined in a single supercontinent which he named Pangaea. • He proposed that Pangaea began breaking up 180 million years ago. • At the time, his proposal was not widely accepted; he could not explain HOW this occurred. ...
Section 1: Continental Drift
... Reshaping Earth’s Crust • rifting the process by which Earth’s crust breaks apart; can occur within continental crust or oceanic crust • Slow movements of tectonic plates change the size and shape of the continents over millions of years. • All of the continents that exist today contain large areas ...
... Reshaping Earth’s Crust • rifting the process by which Earth’s crust breaks apart; can occur within continental crust or oceanic crust • Slow movements of tectonic plates change the size and shape of the continents over millions of years. • All of the continents that exist today contain large areas ...
The Theory of Plate Tectonics
... 4. Describe what happens when (a) two plates carrying oceanic crust collide, (b) two plates carrying continental crust collide, and (c) a plate carrying oceanic crust collides with a plate carrying continental crust. 5. Explain what force caused the movement of the continents from one supercontinent ...
... 4. Describe what happens when (a) two plates carrying oceanic crust collide, (b) two plates carrying continental crust collide, and (c) a plate carrying oceanic crust collides with a plate carrying continental crust. 5. Explain what force caused the movement of the continents from one supercontinent ...
ES Ch 3 Test
... True or False If the statement is true, write true. If it is false, change the underlined word or words to make the statement true. ____________ ...
... True or False If the statement is true, write true. If it is false, change the underlined word or words to make the statement true. ____________ ...
Plate Tectonics
... Plate Boundaries ____________________________________________ are the place where two plates move __________. __________________________ boundaries form where two plates move ________________________. __________________________ fault boundaries are where two plates ____________ past each other ...
... Plate Boundaries ____________________________________________ are the place where two plates move __________. __________________________ boundaries form where two plates move ________________________. __________________________ fault boundaries are where two plates ____________ past each other ...
Class 9 - Earth and Atmospheric Sciences
... elevated atmospheric O2 levels, and may perhaps have made possible dinosaurs’ large size; if so, a drop in atmospheric O2 to modern levels near the end of the Cretaceous could have promoted dinosaurs’ extinction (an interesting, plausible, but quite inconclusively supported 1993 theory). STUDY QUEST ...
... elevated atmospheric O2 levels, and may perhaps have made possible dinosaurs’ large size; if so, a drop in atmospheric O2 to modern levels near the end of the Cretaceous could have promoted dinosaurs’ extinction (an interesting, plausible, but quite inconclusively supported 1993 theory). STUDY QUEST ...
Plate Tectonic Vocabulary Chapter 10 Pages 239-260
... ______ 22. Supercontinents are a. large landmasses formed in the past from smaller continents. b. the large continents that exist today. c. pieces of large landmasses that broke apart. d. large oceans that covered Earth in the past. ...
... ______ 22. Supercontinents are a. large landmasses formed in the past from smaller continents. b. the large continents that exist today. c. pieces of large landmasses that broke apart. d. large oceans that covered Earth in the past. ...
8.1 Earth has several layers
... Pangaea and Continental Drift • Supercontinent of all continents together was called Pangaea—“all lands” • Pangaea—a supercontinent that included all of the landmasses on Earth. • Wegener could not explain how it moved, so people rejected his hypothesis ...
... Pangaea and Continental Drift • Supercontinent of all continents together was called Pangaea—“all lands” • Pangaea—a supercontinent that included all of the landmasses on Earth. • Wegener could not explain how it moved, so people rejected his hypothesis ...
Pangaea - macmillanlanguagearts
... the continents were all formed together in one land mass that he called Pangaea. • Alfred couldn’t explain what force had the power to move the continents, but his ...
... the continents were all formed together in one land mass that he called Pangaea. • Alfred couldn’t explain what force had the power to move the continents, but his ...
Continental Drift and Plate Tectonics
... all from: http://www.geo.lsa.umich.edu/~crlb/COURSES/270 ...
... all from: http://www.geo.lsa.umich.edu/~crlb/COURSES/270 ...
Introduction to Plate Tectonics California Geology 20
... and has gained acceptance within the scientific community but has not yet been decisively proven. Or…… ...
... and has gained acceptance within the scientific community but has not yet been decisively proven. Or…… ...
Essentials of Geology Plate Tectonics: A Unifying Theory
... • Striations and glacial deposits of the same age in the five southern continents suggest this reconstruction of Gondwana ...
... • Striations and glacial deposits of the same age in the five southern continents suggest this reconstruction of Gondwana ...
Chapter 10: Plate Tectonics
... 1.Climate Change: changes based on locations & geologic features – mountains affect air flow, wind patterns, precipitation 2.Biological Change: populations are separated when continents drift – can lead to natural selection & evolution! ...
... 1.Climate Change: changes based on locations & geologic features – mountains affect air flow, wind patterns, precipitation 2.Biological Change: populations are separated when continents drift – can lead to natural selection & evolution! ...
Building a Theory
... New facts don’t fit existing paradigm A major change in understanding Occurs at decade to century time scale Tremendous economic opportunity ...
... New facts don’t fit existing paradigm A major change in understanding Occurs at decade to century time scale Tremendous economic opportunity ...
Richard Bailey “How Did Continents Begin?” COLLOQUIUM
... The plate tectonic revolution which began a half century ago solved some of the major puzzles of geology: why most mountains exist, why the ocean floor is so young, why the continents drift. But there are problems which plate tectonics sensu strictu does not solve. Why did a continental collision ma ...
... The plate tectonic revolution which began a half century ago solved some of the major puzzles of geology: why most mountains exist, why the ocean floor is so young, why the continents drift. But there are problems which plate tectonics sensu strictu does not solve. Why did a continental collision ma ...
Inside the Earth
... Alfred Wegener’s hypothesis that all continents were once connected in a single large landmass that broke apart about 200 million years ago and drifted slowly to their current positions ...
... Alfred Wegener’s hypothesis that all continents were once connected in a single large landmass that broke apart about 200 million years ago and drifted slowly to their current positions ...
Plate Tectonics
... evidence = the same fossils were found on different continents that would have been joined during Pangaea. Example = Mesosaurus (S. America and W. Africa) • Climate ...
... evidence = the same fossils were found on different continents that would have been joined during Pangaea. Example = Mesosaurus (S. America and W. Africa) • Climate ...
Continental growth spurts were all before 1 Ga
... Continental growth spurts were all before 1 Ga This plus ophiolites, kimberlites, komatiites, TTG,UHPT…suggest that modern plate tectonics was not occurring before Late Precambrian Today, delamination equals arc and plateau addition ...
... Continental growth spurts were all before 1 Ga This plus ophiolites, kimberlites, komatiites, TTG,UHPT…suggest that modern plate tectonics was not occurring before Late Precambrian Today, delamination equals arc and plateau addition ...
7 Grade: Ch. 10 STUDY GUIDE KEY
... 1. What was Wegener’s hypothesis of continental drift? The continents were once joined together in a single landmass 2. What is Pangaea? Pangaea is the name of the supercontinent that existed millions of years ago 3. What is a fossil? Any trace of an ancient organism that has been preserved in rock ...
... 1. What was Wegener’s hypothesis of continental drift? The continents were once joined together in a single landmass 2. What is Pangaea? Pangaea is the name of the supercontinent that existed millions of years ago 3. What is a fossil? Any trace of an ancient organism that has been preserved in rock ...
Supercontinent
In geology, a supercontinent is the assembly of most or all of the Earth's continental blocks or cratons to form a single large landmass. However, the definition of a supercontinent can be ambiguous. Many tectonicists such as P.F. Hoffman (1999) use the term ""supercontinent"" to mean ""a clustering of nearly all continents"". This definition leaves room for interpretation when labeling a continental body and is easier to apply to Precambrian times. Using the first definition provided here, Gondwana (aka Gondwanaland) is not considered a supercontinent, because the landmasses of Baltica, Laurentia and Siberia also existed at the same time but physically separate from each other. The landmass of Pangaea is the collective name describing all of these continental masses when they were in a close proximity to one another. This would classify Pangaea as a supercontinent. According to the definition by Rogers and Santosh (2004), a supercontinent does not exist today. Supercontinents have assembled and dispersed multiple times in the geologic past (see table). The positions of continents have been accurately determined back to the early Jurassic. However, beyond 200 Ma, continental positions are much less certain.