Plate and Pangaea Powerpoint
... Why do Plates move? • Must investigate the interior of the earth. • 4.6 billion years ago, scientist believe that a huge explosion of gas and matter occurred in space. • Over time the gas and matter cooled to formed planets. • A layer of solid matter or crust formed around the outside of a a ball. ...
... Why do Plates move? • Must investigate the interior of the earth. • 4.6 billion years ago, scientist believe that a huge explosion of gas and matter occurred in space. • Over time the gas and matter cooled to formed planets. • A layer of solid matter or crust formed around the outside of a a ball. ...
Rock Cycle Roundabout - California Academy of Sciences
... of the other rock types. A rock can even re-form as the same type of rock. Below is an explanation of the different alterations that each rock type can undergo. Igneous rocks form from hot molten rock produced by volcanic activity on Earth. Geologists classify igneous rocks according to the types of ...
... of the other rock types. A rock can even re-form as the same type of rock. Below is an explanation of the different alterations that each rock type can undergo. Igneous rocks form from hot molten rock produced by volcanic activity on Earth. Geologists classify igneous rocks according to the types of ...
Origins Of The Himalayan Treasure Chest
... the crust of the Tethys Ocean (situated between India and Eurasia), under the southern edge of Eurasia. There the Tethys oceanic crust partially melted. By about 60 million years ago, the oceanic crust of the Tethys had been pushed entirely beneath Eurasia. No longer separated by an ocean, India and ...
... the crust of the Tethys Ocean (situated between India and Eurasia), under the southern edge of Eurasia. There the Tethys oceanic crust partially melted. By about 60 million years ago, the oceanic crust of the Tethys had been pushed entirely beneath Eurasia. No longer separated by an ocean, India and ...
Slide 1
... • LT: I can set reasonable goals for my grade in this class. • I can describe continental drift • BR: How do you think you did on the test yesterday? ...
... • LT: I can set reasonable goals for my grade in this class. • I can describe continental drift • BR: How do you think you did on the test yesterday? ...
Rocks & The Rock Cycle
... Extrusive & intrusive igneous rocks differ mainly in their sized of crystalline grain and is known as texture ...
... Extrusive & intrusive igneous rocks differ mainly in their sized of crystalline grain and is known as texture ...
Foam Faults
... Identify common features for each fault type on a topographic map For other earthquake-related activities, see RAFT Idea Sheets Shake Table and Your Room in an Earthquake ...
... Identify common features for each fault type on a topographic map For other earthquake-related activities, see RAFT Idea Sheets Shake Table and Your Room in an Earthquake ...
Dynamic Earth Assessment Test Results
... The correct answer is c) One plate is being pulled under another. Review: Chapter 5: Slip, Slide, & Collide 18. Mountain formation can result when which of the following occurs? a. Two oceanic plates collide. b. Two continental plates collide. c. Two oceanic plates spread apart. d. None of the above ...
... The correct answer is c) One plate is being pulled under another. Review: Chapter 5: Slip, Slide, & Collide 18. Mountain formation can result when which of the following occurs? a. Two oceanic plates collide. b. Two continental plates collide. c. Two oceanic plates spread apart. d. None of the above ...
Earthquakes and Seismic Waves An earthquake is
... the surface directly above the focus is called the epicenter. During an earthquake, vibrations called seismic waves move out from the focus in all directions. Seismic waves carry the energy of an earthquake away from the focus, through E a r t h ’ s interior, and across the surface. There are three ...
... the surface directly above the focus is called the epicenter. During an earthquake, vibrations called seismic waves move out from the focus in all directions. Seismic waves carry the energy of an earthquake away from the focus, through E a r t h ’ s interior, and across the surface. There are three ...
L10
... Magma rises to surface and forms new oceanic crust. Occur in oceanic crust (oceanic ridges) and in continental crust (rift valleys). Continental rift valleys may eventually flood to form a new ocean basin. ...
... Magma rises to surface and forms new oceanic crust. Occur in oceanic crust (oceanic ridges) and in continental crust (rift valleys). Continental rift valleys may eventually flood to form a new ocean basin. ...
When the Earth Moves: Sea Floor Spreading and Plate Tectonics
... of researchers had studied the behavior of seismic waves to infer a planetary structure composed of concentric layers: an inner core (although there was disagreement as to whether it was solid or fluid) covered by an intermediate layer of dense rock, the mantle, that began about 30 miles beneath the ...
... of researchers had studied the behavior of seismic waves to infer a planetary structure composed of concentric layers: an inner core (although there was disagreement as to whether it was solid or fluid) covered by an intermediate layer of dense rock, the mantle, that began about 30 miles beneath the ...
Dating the Growth of Oceanic Crust at a Slow
... these zoning patterns is that the cores are relict grains that were resorbed during infiltration of new melt. This interpretation is consistent with the inheritance recognized in this sample. The Pb/U zircon ages reported here, together with the age reported in (17), allow us to place absolute const ...
... these zoning patterns is that the cores are relict grains that were resorbed during infiltration of new melt. This interpretation is consistent with the inheritance recognized in this sample. The Pb/U zircon ages reported here, together with the age reported in (17), allow us to place absolute const ...
Earthquakes, Volcanoes, and Plate Tectonics
... Convergent Plate Boundaries A common location for volcanoes to form is along convergent plate boundaries. More dense oceanic plates sink beneath less dense plates that they collide with. This sets up conditions that form volcanoes. When one plate sinks beneath another, basalt and sediment on an ocea ...
... Convergent Plate Boundaries A common location for volcanoes to form is along convergent plate boundaries. More dense oceanic plates sink beneath less dense plates that they collide with. This sets up conditions that form volcanoes. When one plate sinks beneath another, basalt and sediment on an ocea ...
Activity 5
... migrate and spread without crossing an ocean. Although other geologists proposed different models to explain mountains, oceans, and fossils, all generally agreed that the Earth’s crust moved up and down, but not very far sideways. Land bridges were often cited as allowing various kinds of organisms ...
... migrate and spread without crossing an ocean. Although other geologists proposed different models to explain mountains, oceans, and fossils, all generally agreed that the Earth’s crust moved up and down, but not very far sideways. Land bridges were often cited as allowing various kinds of organisms ...
Background Information
... overcome the friction between the two slabs of lithosphere. As the plates “snap back” or rebound, energy is released in the form of waves, which are felt as an earthquake. ...
... overcome the friction between the two slabs of lithosphere. As the plates “snap back” or rebound, energy is released in the form of waves, which are felt as an earthquake. ...
Inner Core - Net Start Class
... Circulation of molten metal within Earth’s core helps to create a magnetic field. As a result, Earth has an immense magnetic field surrounding it, just as there is a magnetic field around a bar magnet. ...
... Circulation of molten metal within Earth’s core helps to create a magnetic field. As a result, Earth has an immense magnetic field surrounding it, just as there is a magnetic field around a bar magnet. ...
Prologue - Royal Society
... look. The best we can do is to search the world for ancient rocks and fossils and probe them for their secrets. We spin theories that fit the evidence and rework them when new data find them wanting. These days, new ways of interrogating the past are developed with breathtaking speed, so the picture ...
... look. The best we can do is to search the world for ancient rocks and fossils and probe them for their secrets. We spin theories that fit the evidence and rework them when new data find them wanting. These days, new ways of interrogating the past are developed with breathtaking speed, so the picture ...
9.4 Testing Plate Tectonics 9.5 Mechanisms of Plate Motions
... • Scientists found a close link between deep-focus earthquakes and ocean trenches. • The absence of deep-focus earthquakes along the oceanic ridge system was shown to be consistent with the new theory. ...
... • Scientists found a close link between deep-focus earthquakes and ocean trenches. • The absence of deep-focus earthquakes along the oceanic ridge system was shown to be consistent with the new theory. ...
Types of Rocks - Sikkimsprings
... Sedimentary rocks: Rocks formed from the weathering, erosion and deposition & compaction of rock material through agents like wind, water, ice and chemical precipitation. ...
... Sedimentary rocks: Rocks formed from the weathering, erosion and deposition & compaction of rock material through agents like wind, water, ice and chemical precipitation. ...
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.