Presenting
... scored higher on an identical test question Q: Heat source for movement of lithospheric plates? Why domove the plates move? Plates because of convection caused by heat from decay of radioactive elements in the mantle ...
... scored higher on an identical test question Q: Heat source for movement of lithospheric plates? Why domove the plates move? Plates because of convection caused by heat from decay of radioactive elements in the mantle ...
Activity #8 slide presentation pdf
... our planet in earlier times, and that the truth of the matter can only be reached by combing all this evidence. . . It is only by combing the information furnished by all the earth sciences that we can hope to determine 'truth' here, that is to say, to find the picture that sets out all the known fa ...
... our planet in earlier times, and that the truth of the matter can only be reached by combing all this evidence. . . It is only by combing the information furnished by all the earth sciences that we can hope to determine 'truth' here, that is to say, to find the picture that sets out all the known fa ...
Indicate the answer choice that best completes the statement or
... Indicate the answer choice that best completes the statement or answers the question. 1. Seafloor spreading occurs because _____. a. new material is being added to the asthenosphere b. earthquakes break apart the ocean floor c. sediments accumulate at the area of spreading d. molten material ...
... Indicate the answer choice that best completes the statement or answers the question. 1. Seafloor spreading occurs because _____. a. new material is being added to the asthenosphere b. earthquakes break apart the ocean floor c. sediments accumulate at the area of spreading d. molten material ...
Announcements
... Geologic Features-mountain ranges, ages and kinds of rocks match along edges of continents. (Diamonds) Ancient climates- glacier markings match on separate continents, some in areas that are now tropical. ...
... Geologic Features-mountain ranges, ages and kinds of rocks match along edges of continents. (Diamonds) Ancient climates- glacier markings match on separate continents, some in areas that are now tropical. ...
Chapter 15 Geology and Nonrenewables
... Three types of boundaries between plates Divergent plates –plates move apart Magma – flows up through the resulting cracks Oceanic ridge – some of which have higher peaks and deeper canyons than earth’s continents Convergent plates – oceanic plate collides with a continental plate, Subduct ...
... Three types of boundaries between plates Divergent plates –plates move apart Magma – flows up through the resulting cracks Oceanic ridge – some of which have higher peaks and deeper canyons than earth’s continents Convergent plates – oceanic plate collides with a continental plate, Subduct ...
Chapter 18- Volcanic Activity
... 7. Some volcanoes are located far from plate boundaries, these volcanoes form as the result of hot spots, which are unusually hot regions of earth’s mantle where hightemperature plumes of mantle material rise toward the surface. ...
... 7. Some volcanoes are located far from plate boundaries, these volcanoes form as the result of hot spots, which are unusually hot regions of earth’s mantle where hightemperature plumes of mantle material rise toward the surface. ...
Volcanoes and Igneous Activity Earth - Chapter 4
... Earth’s Internal Heat Engine • Major processes that have contributed to Earth’s internal heat • Heat emitted by radioactive decay of isotopes of uranium (U), thorium (Th), and potassium (K) • Heat released as iron crystallized to form the solid inner core • Heat released by colliding particles duri ...
... Earth’s Internal Heat Engine • Major processes that have contributed to Earth’s internal heat • Heat emitted by radioactive decay of isotopes of uranium (U), thorium (Th), and potassium (K) • Heat released as iron crystallized to form the solid inner core • Heat released by colliding particles duri ...
Chapter 18- Volcanic Activity
... 7. Some volcanoes are located far from plate boundaries, these volcanoes form as the result of hot spots, which are unusually hot regions of earth’s mantle where hightemperature plumes of mantle material rise toward the surface. ...
... 7. Some volcanoes are located far from plate boundaries, these volcanoes form as the result of hot spots, which are unusually hot regions of earth’s mantle where hightemperature plumes of mantle material rise toward the surface. ...
rocks guided reading
... Below ground = from ________________ (intrusive igneous rock) Usually have ___________________ crystal grains (they cooled ____________________) Extrusive Igneous Rocks: Above ground = from _____________________ (extrusive igneous rock) Usually have _____________ or _______ crystals (they cooled ___ ...
... Below ground = from ________________ (intrusive igneous rock) Usually have ___________________ crystal grains (they cooled ____________________) Extrusive Igneous Rocks: Above ground = from _____________________ (extrusive igneous rock) Usually have _____________ or _______ crystals (they cooled ___ ...
Meg Anderson Earth Unit Test SOL: 5.7 Read each question
... c. currents, or slow plastic movements in the mantle d. the temperature of the crust 17. If you wanted to live where there were few earthquakes and volcanoes, you should live a. far from plate boundaries b. near a plate boundary c. close to the ocean d. on an island B ...
... c. currents, or slow plastic movements in the mantle d. the temperature of the crust 17. If you wanted to live where there were few earthquakes and volcanoes, you should live a. far from plate boundaries b. near a plate boundary c. close to the ocean d. on an island B ...
Pearson Prentice Hall Physical Science: Concepts in Action
... Patterns of parallel magnetic stripes in the rocks were identical and found on both sides of the ridge The stripes exist because Earth has reversed its magnetic field several times in the past The stripes indicate that new ocean floor was added to both sides of the ridge about roughly the same ...
... Patterns of parallel magnetic stripes in the rocks were identical and found on both sides of the ridge The stripes exist because Earth has reversed its magnetic field several times in the past The stripes indicate that new ocean floor was added to both sides of the ridge about roughly the same ...
Lab 3&4 PowerPoint
... The outermost layer of the Earth is the crust. The Earth’s crust (lithosphere) is like a puzzle. It is made up of a series of plates (Lithospheric plates) that move around the earth slowly due to convection in the mantle (more specifically the asthenosphere) ...
... The outermost layer of the Earth is the crust. The Earth’s crust (lithosphere) is like a puzzle. It is made up of a series of plates (Lithospheric plates) that move around the earth slowly due to convection in the mantle (more specifically the asthenosphere) ...
Earth`s magnetic field
... It is believed that the outer core is in convective motion (because it is liquid and in a temperature gradient). A "stray" magnetic field (probably from the Sun) interacts with the moving iron in the core to produce an electric current that is moving about the Earth's spin axis yielding a magnetic f ...
... It is believed that the outer core is in convective motion (because it is liquid and in a temperature gradient). A "stray" magnetic field (probably from the Sun) interacts with the moving iron in the core to produce an electric current that is moving about the Earth's spin axis yielding a magnetic f ...
GEOL1010
... e) 14C can only be used to date organic C taken from the atmosphere by plants. 17. A conglomerate formation contains cobbles of andesite (intermediate volcanic rock). The andesite was dated radiometrically at 78 million years. Based on this date, we can infer the conglomerate layer to be: a) more th ...
... e) 14C can only be used to date organic C taken from the atmosphere by plants. 17. A conglomerate formation contains cobbles of andesite (intermediate volcanic rock). The andesite was dated radiometrically at 78 million years. Based on this date, we can infer the conglomerate layer to be: a) more th ...
Document
... EXAMPLE: A student in Language Arts can demonstrate the ability to apply and comprehend critical language through the following statement: “Mark Twain exposes the hypocrisy of slavery through the use of satire.” A student in ______________ can demonstrate the ability to apply and comprehend critical ...
... EXAMPLE: A student in Language Arts can demonstrate the ability to apply and comprehend critical language through the following statement: “Mark Twain exposes the hypocrisy of slavery through the use of satire.” A student in ______________ can demonstrate the ability to apply and comprehend critical ...
Plate Tectonics
... move down when compared with rock layers below the fault Reverse fault = the rock layers above the fault surface move up relative to the rock layers below the fault Strike-slip fault = rocks on opposite sides of the fault move in opposite directions, or in the same direction at different rates ...
... move down when compared with rock layers below the fault Reverse fault = the rock layers above the fault surface move up relative to the rock layers below the fault Strike-slip fault = rocks on opposite sides of the fault move in opposite directions, or in the same direction at different rates ...
Plate Tectonics - ByrneScience 2010
... 4. Fossils provide a record of how organisms have changed over time. 5. The fossil record can be aligned to the major environmental changes that have occurred on Earth. 6. The fossil record illustrates how organisms responded to environmental change. 7. Some fossils provide a continuous record of en ...
... 4. Fossils provide a record of how organisms have changed over time. 5. The fossil record can be aligned to the major environmental changes that have occurred on Earth. 6. The fossil record illustrates how organisms responded to environmental change. 7. Some fossils provide a continuous record of en ...
Inside the Restless Earth
... 7. Why did some people not accept this theory at first? Even though Wegener had a lot of evidence that that continents were once together, he couldn’t explain how or why the continents are moving, so people doubted him. 8. What other discovery made years later supported the theory of Continental Dri ...
... 7. Why did some people not accept this theory at first? Even though Wegener had a lot of evidence that that continents were once together, he couldn’t explain how or why the continents are moving, so people doubted him. 8. What other discovery made years later supported the theory of Continental Dri ...
PLATE TECTONICS
... • Harry Hess, 1950’s (proposed a new hypothesis) • The valley at the center of the ridge was a crack or rift, in the Earth’s crust. • At the rift, magma rises and moves away from the rift, cools and solidifies, and forms new rock that replaces the rock of the ocean floor (Sea-floor spreading). • It ...
... • Harry Hess, 1950’s (proposed a new hypothesis) • The valley at the center of the ridge was a crack or rift, in the Earth’s crust. • At the rift, magma rises and moves away from the rift, cools and solidifies, and forms new rock that replaces the rock of the ocean floor (Sea-floor spreading). • It ...
RECOLLECTION The discovery of the Earth`s oldest rocks Stephen
... The most important observation is that there is no direct evidence within the Greenland rocks for any exposed primordial crust significantly older than ca. 3.8 Gyr. All rocks in the Isua region are of secondary origin in that they were produced from varied source rocks by identifiable uniformitarian ...
... The most important observation is that there is no direct evidence within the Greenland rocks for any exposed primordial crust significantly older than ca. 3.8 Gyr. All rocks in the Isua region are of secondary origin in that they were produced from varied source rocks by identifiable uniformitarian ...
Age of the Earth
The age of the Earth is 4.54 ± 0.05 billion years (4.54 × 109 years ± 1%). This age is based on evidence from radiometric age dating of meteorite material and is consistent with the radiometric ages of the oldest-known terrestrial and lunar samples.Following the development of radiometric age dating in the early 20th century, measurements of lead in uranium-rich minerals showed that some were in excess of a billion years old.The oldest such minerals analyzed to date—small crystals of zircon from the Jack Hills of Western Australia—are at least 4.404 billion years old. Comparing the mass and luminosity of the Sun to those of other stars, it appears that the Solar System cannot be much older than those rocks. Calcium-aluminium-rich inclusions – the oldest known solid constituents within meteorites that are formed within the Solar System – are 4.567 billion years old, giving an age for the solar system and an upper limit for the age of Earth.It is hypothesised that the accretion of Earth began soon after the formation of the calcium-aluminium-rich inclusions and the meteorites. Because the exact amount of time this accretion process took is not yet known, and the predictions from different accretion models range from a few millions up to about 100 million years, the exact age of Earth is difficult to determine. It is also difficult to determine the exact age of the oldest rocks on Earth, exposed at the surface, as they are aggregates of minerals of possibly different ages.