Lecture 2: Before we get to PLATE TECTONICS…..
... Overwhelming evidence in support of plate tectonics led to its rapid acceptance and elaboration since the early 1970's. ...
... Overwhelming evidence in support of plate tectonics led to its rapid acceptance and elaboration since the early 1970's. ...
Erosion and Deposition Notes Part 2 File
... plate boundaries they may form along. Give examples of each. ...
... plate boundaries they may form along. Give examples of each. ...
Unit Six Notes
... Seafloor Spreading The Seafloor is Spreading Clip—4:01 How Earth’s Structure Affects Plate Tectonics—5:43 ...
... Seafloor Spreading The Seafloor is Spreading Clip—4:01 How Earth’s Structure Affects Plate Tectonics—5:43 ...
PAST EXAM QUESTIONS
... C. the continents seems to fit together like pieces of a jigsaw puzzle D. lines of islands on moving plates formed above hotspots E. scientists could tell that the continents are still moving today 3. Which of the following is NOT one of the lines of evidence initially used to develop the theory of ...
... C. the continents seems to fit together like pieces of a jigsaw puzzle D. lines of islands on moving plates formed above hotspots E. scientists could tell that the continents are still moving today 3. Which of the following is NOT one of the lines of evidence initially used to develop the theory of ...
Word
... Although Pangea’s southern Gondwana continents contain evidence of an ice age during the Carboniferous Period, there are no equivalent aged glacial deposits in the northern Laurasia continents because: A. Gondwana was near the south pole in the Carboniferous, but Laurasia was near the equator B. Lau ...
... Although Pangea’s southern Gondwana continents contain evidence of an ice age during the Carboniferous Period, there are no equivalent aged glacial deposits in the northern Laurasia continents because: A. Gondwana was near the south pole in the Carboniferous, but Laurasia was near the equator B. Lau ...
The History of Continental Drift
... a) Decay of elements within the Earth to Helium which then escapes to the atmosphere. b) Combination of elements within the earth to form denser elements. Neither process is known to take place! ...
... a) Decay of elements within the Earth to Helium which then escapes to the atmosphere. b) Combination of elements within the earth to form denser elements. Neither process is known to take place! ...
Plate Tectonic, Earthquakes, and Volcanoes Test Review
... 11. The (newest/ oldest) crust is farthest away from the mid-ocean ridges. 12. How do oceanic magnetic stripes provide proof of sea floor spreading? When new oceanic crust is still molten, the magnetic grains will align with the magnetic poles (like a compass). Throughout Earth’s history, the poles ...
... 11. The (newest/ oldest) crust is farthest away from the mid-ocean ridges. 12. How do oceanic magnetic stripes provide proof of sea floor spreading? When new oceanic crust is still molten, the magnetic grains will align with the magnetic poles (like a compass). Throughout Earth’s history, the poles ...
Plate Tectonics
... Thought continents had been separated by floods and earthquakes Edward Suess proposed continents had once been joined together as supercontinent known as Gondwanaland. ...
... Thought continents had been separated by floods and earthquakes Edward Suess proposed continents had once been joined together as supercontinent known as Gondwanaland. ...
Quiz 9: Archean Tectonics (Ch. 11) 1. Komatiites are often found in
... 4. What geothermal gradients are characteristic of subduction zones where blueschist - eclogite facies metamorphic rocks are formed? less than 10◦ C per km. “cold” or “low gradient” not sufficient ...
... 4. What geothermal gradients are characteristic of subduction zones where blueschist - eclogite facies metamorphic rocks are formed? less than 10◦ C per km. “cold” or “low gradient” not sufficient ...
Chapter1305.ppt
... Jurassic time period because of subduction of the ocean basin). Comparing fossils found in different global locations can tell scientists whether the locations were adjacent to one another in the past. Recognizing past climates: looking at fossils and rock types that formed at given latitudes. For ...
... Jurassic time period because of subduction of the ocean basin). Comparing fossils found in different global locations can tell scientists whether the locations were adjacent to one another in the past. Recognizing past climates: looking at fossils and rock types that formed at given latitudes. For ...
Handout
... Jurassic time period because of subduction of the ocean basin). Comparing fossils found in different global locations can tell scientists whether the locations were adjacent to one another in the past. Recognizing past climates: looking at fossils and rock types that formed at given latitudes. For ...
... Jurassic time period because of subduction of the ocean basin). Comparing fossils found in different global locations can tell scientists whether the locations were adjacent to one another in the past. Recognizing past climates: looking at fossils and rock types that formed at given latitudes. For ...
answer key - Riverdale Middle School
... c.) What process is shown occurring at C, and why does it occur? Subduction, because the ocean floor is so much heavier (denser) than the land ...
... c.) What process is shown occurring at C, and why does it occur? Subduction, because the ocean floor is so much heavier (denser) than the land ...
Chapter 2 - Plate Tectonics
... • This theory has survived so many attempts to prove it wrong and has been so important in explaining and predicting so many phenomena that geologists treat the theory as fact. • Reasons why proof and acceptance took so long: very cautious approach of many scientists studying this issue; global scal ...
... • This theory has survived so many attempts to prove it wrong and has been so important in explaining and predicting so many phenomena that geologists treat the theory as fact. • Reasons why proof and acceptance took so long: very cautious approach of many scientists studying this issue; global scal ...
Plate Tectonic Notes
... Use the picture below to see the matching mountain ranges on the coastlines of separate continents like S. America & Africa ...
... Use the picture below to see the matching mountain ranges on the coastlines of separate continents like S. America & Africa ...
Plate Tectonics
... What evidence do we have to support this idea? o Ocean floor sediments are thin on the ridges and get thicker as the distance from the ridges increase o Polar reversal magnetism proves that the ocean floor is moving away from the ...
... What evidence do we have to support this idea? o Ocean floor sediments are thin on the ridges and get thicker as the distance from the ridges increase o Polar reversal magnetism proves that the ocean floor is moving away from the ...
plates
... What evidence do we have to support this idea? o Ocean floor sediments are thin on the ridges and get thicker as the distance from the ridges increase o Polar reversal magnetism proves that the ocean floor is moving away from the ...
... What evidence do we have to support this idea? o Ocean floor sediments are thin on the ridges and get thicker as the distance from the ridges increase o Polar reversal magnetism proves that the ocean floor is moving away from the ...
Section 17.3 Theory of Plate Tectonics
... movement of each. (Features include: subduction, trenches, ridges, mountains, islands) 10. Explain the process of convection. 11. Summarize how convection in the mantle is related to the movements of tectonic plates. 12. Compare & contrast the processes of ridge push & slab pull. 13. Miscellaneous: ...
... movement of each. (Features include: subduction, trenches, ridges, mountains, islands) 10. Explain the process of convection. 11. Summarize how convection in the mantle is related to the movements of tectonic plates. 12. Compare & contrast the processes of ridge push & slab pull. 13. Miscellaneous: ...
Plate tectonics/boundaries
... Write the letter of the correct answer on the line at the left. ______ 1. A break in Earth’s crust where rocks have slipped past each other is called a a. plate. b. layer. c. boundary. d. fault. ______ 2. Continental crust consists mainly of the rock a. nickel. b. basalt c. mantle. d. granite. _____ ...
... Write the letter of the correct answer on the line at the left. ______ 1. A break in Earth’s crust where rocks have slipped past each other is called a a. plate. b. layer. c. boundary. d. fault. ______ 2. Continental crust consists mainly of the rock a. nickel. b. basalt c. mantle. d. granite. _____ ...
plate tectonics
... together in a single large land mass he called Pangea (meaning “all land” in Greek). • He proposed that Pangea had split apart and the continents had moved gradually to their present positions - a process that became known as continental drift. ...
... together in a single large land mass he called Pangea (meaning “all land” in Greek). • He proposed that Pangea had split apart and the continents had moved gradually to their present positions - a process that became known as continental drift. ...
plate tectonics
... together in a single large land mass he called Pangea (meaning “all land” in Greek). • He proposed that Pangea had split apart and the continents had moved gradually to their present positions - a process that became known as continental drift. ...
... together in a single large land mass he called Pangea (meaning “all land” in Greek). • He proposed that Pangea had split apart and the continents had moved gradually to their present positions - a process that became known as continental drift. ...
Geologic Time Line - Legacy High School
... System formed by coagulation and gravitational contraction from a large cloud of gas and dust around the sun, called an accretion disc. ...
... System formed by coagulation and gravitational contraction from a large cloud of gas and dust around the sun, called an accretion disc. ...
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.