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CLASS SET - Plate tectonics reading packet
... they have, in fact, been connected? During the 19th and early 20th centuries, several geologists explored the idea of moving continents by observing the possible “fit” between Africa and South America. In 1912 Alfred Wegener, a lecturer in astronomy and meteorology, hypothesized that the earth’s con ...
... they have, in fact, been connected? During the 19th and early 20th centuries, several geologists explored the idea of moving continents by observing the possible “fit” between Africa and South America. In 1912 Alfred Wegener, a lecturer in astronomy and meteorology, hypothesized that the earth’s con ...
Earth Structure and Plates
... – Age of seafloor – Paleomagnetism – Heat flow • Theory combining continental drift and seafloor spreading termed “Plate Tectonics” ...
... – Age of seafloor – Paleomagnetism – Heat flow • Theory combining continental drift and seafloor spreading termed “Plate Tectonics” ...
Earth Structure
... – Age of seafloor – Paleomagnetism – Heat flow • Theory combining continental drift and seafloor spreading termed “Plate Tectonics” ...
... – Age of seafloor – Paleomagnetism – Heat flow • Theory combining continental drift and seafloor spreading termed “Plate Tectonics” ...
Tectonic implications of Mars crustal magnetism
... provinces in the southern highlands, particularly Syrtis Major west of the Isidis basin and Hesperia Planum to the northeast of Hellas. A diminution of the field near the summit of Hesperia (20.5°S and 104.5°E) suggests that these f lows have only partially demagnetized the underlying crust. These l ...
... provinces in the southern highlands, particularly Syrtis Major west of the Isidis basin and Hesperia Planum to the northeast of Hellas. A diminution of the field near the summit of Hesperia (20.5°S and 104.5°E) suggests that these f lows have only partially demagnetized the underlying crust. These l ...
Dynamic Ocean Floor
... matching geological trends between the eastern coast of South America and the western coast of Africa. • The continuity of mountain chains also provide evidence for Pangea. • One example of this is the Appalachian Mountains chain which extends from the United States to Ireland, Britain, Greenland, a ...
... matching geological trends between the eastern coast of South America and the western coast of Africa. • The continuity of mountain chains also provide evidence for Pangea. • One example of this is the Appalachian Mountains chain which extends from the United States to Ireland, Britain, Greenland, a ...
Evidence of continental drift
... rocks break and form a crack between the plates. • Earthquakes occur along the plate boundary. • Magma rises through the cracks and seeps out onto the ocean floor like a long, thin, undersea volcano or magma slowly come up and cools forming NEW OCEAN FLOOR! ...
... rocks break and form a crack between the plates. • Earthquakes occur along the plate boundary. • Magma rises through the cracks and seeps out onto the ocean floor like a long, thin, undersea volcano or magma slowly come up and cools forming NEW OCEAN FLOOR! ...
plates - pribaudo
... of seafloor spreading? o Midocean ridges are warmer than surrounding ocean floors o Active volcanoes on ridges, earthquakes on ridges o Midocean ridge rocks are younger than surrounding ocean floor rocks o Midocean ridge volcanoes are younger ...
... of seafloor spreading? o Midocean ridges are warmer than surrounding ocean floors o Active volcanoes on ridges, earthquakes on ridges o Midocean ridge rocks are younger than surrounding ocean floor rocks o Midocean ridge volcanoes are younger ...
PLATE TECTONICS STUDY GUIDE
... crust. solid, pieces, basalt, more dense, float 4. Asthenosphere - the partially melted part of the mantle that contains convection currents that move the crustal plates. 5. circular arrows = convection currents, left 2 surface arrows = moving apart, right 2 surface arrows = moving toward, circular ...
... crust. solid, pieces, basalt, more dense, float 4. Asthenosphere - the partially melted part of the mantle that contains convection currents that move the crustal plates. 5. circular arrows = convection currents, left 2 surface arrows = moving apart, right 2 surface arrows = moving toward, circular ...
Plate tectonics.notebook
... b. Continental Oceanic Oceanic plate sinks into the lithosphere Subduction Zone c. Oceanic Oceanic One plate will sink under the other 3. Transform Boundary plates slide past one another horizontally strike slip fault causes earthquakes What is behind all this? Convection current cycle of ...
... b. Continental Oceanic Oceanic plate sinks into the lithosphere Subduction Zone c. Oceanic Oceanic One plate will sink under the other 3. Transform Boundary plates slide past one another horizontally strike slip fault causes earthquakes What is behind all this? Convection current cycle of ...
Geomorphology
... Sites of lateral movement Crust is neither created nor destroyed The rigid and brittle lithospheric plates overlie the molten and plastic asthenosphere. Currents in the mantle move and form convection currents. When the current moves to the surface, it diverges. As it moves up it pushes the plat ...
... Sites of lateral movement Crust is neither created nor destroyed The rigid and brittle lithospheric plates overlie the molten and plastic asthenosphere. Currents in the mantle move and form convection currents. When the current moves to the surface, it diverges. As it moves up it pushes the plat ...
Plate tectonics “Quest”: Tuesday January 15, 2011
... Know the evidence that supported the hypothesis of continental drift: matching coastlines from continents, similar land features, evidence from fossils, and evidence from climate. Sea-Floor Spreading Vocabulary- will be either in a multiple choice or fill-in. o Mid-ocean ridge, sonar, sea-floor ...
... Know the evidence that supported the hypothesis of continental drift: matching coastlines from continents, similar land features, evidence from fossils, and evidence from climate. Sea-Floor Spreading Vocabulary- will be either in a multiple choice or fill-in. o Mid-ocean ridge, sonar, sea-floor ...
Study Guide 9 -
... Rates of plate motions can be calculated from several data sources. a. For rocks of known ages, rates of motion can be calculated with reference to distance from spreading ridges. (see p.190) b. The locations and ages of hot spot volcanoes also can be used to derive plate motion rates. (see p.190-19 ...
... Rates of plate motions can be calculated from several data sources. a. For rocks of known ages, rates of motion can be calculated with reference to distance from spreading ridges. (see p.190) b. The locations and ages of hot spot volcanoes also can be used to derive plate motion rates. (see p.190-19 ...
Chapter 10 * Plate Tectonics
... According to Wegener, this supercontinent began breaking up into smaller continents during the Mesozoic Era (250 million years ago). It has taken millions of years for these continents to drift to their present locations. Some mountains may be the result of two plates colliding. ...
... According to Wegener, this supercontinent began breaking up into smaller continents during the Mesozoic Era (250 million years ago). It has taken millions of years for these continents to drift to their present locations. Some mountains may be the result of two plates colliding. ...
i-vi_MCD-SCI-EA-B-FM.indd - Middletown Public Schools
... a. an egg’s shell b. an egg yolk c. a peach pit d. an orange slice ____ 3. A tectonic plate is a slab of Earth’s a. asthenosphere b. lithosphere c. outer core d. inner core ____ 4. Which of these did Wegener use to support continental drift? a. similar rocks on different continents b. spreading on t ...
... a. an egg’s shell b. an egg yolk c. a peach pit d. an orange slice ____ 3. A tectonic plate is a slab of Earth’s a. asthenosphere b. lithosphere c. outer core d. inner core ____ 4. Which of these did Wegener use to support continental drift? a. similar rocks on different continents b. spreading on t ...
Section 4 Sea-Floor Spreading
... gathered samples from the sea floor in pipes. The scientist determined the age of the rocks and found that the farther away from the ridge the samples were taken, the older the rocks were. ...
... gathered samples from the sea floor in pipes. The scientist determined the age of the rocks and found that the farther away from the ridge the samples were taken, the older the rocks were. ...
PDF only
... area in response to decompression-driven volume expansion. Basalt extruded at mid-ocean ridges becomes seafloor, spreading and eventually subducting, i.e., falling into secondary decompression cracks, seismically imaged as “down-plunging slabs”, but without engaging in the process of mantle convecti ...
... area in response to decompression-driven volume expansion. Basalt extruded at mid-ocean ridges becomes seafloor, spreading and eventually subducting, i.e., falling into secondary decompression cracks, seismically imaged as “down-plunging slabs”, but without engaging in the process of mantle convecti ...
sea-floor spreading
... magma bubbles up through a midocean ridge and hardens on the ocean floor. • New crust is closer to the ridge. • Old crust farther away, indicating plates are moving apart. ...
... magma bubbles up through a midocean ridge and hardens on the ocean floor. • New crust is closer to the ridge. • Old crust farther away, indicating plates are moving apart. ...
Continental Drift and Plate Tectonics
... He could not find the force that was causing the continents to drift. Because of this, he could not convince anyone that continents could move. He died in Greenland on an expedition. At the time of his death, no one believed his hypothesis! Technology developed during the 1940’s changed all that! ...
... He could not find the force that was causing the continents to drift. Because of this, he could not convince anyone that continents could move. He died in Greenland on an expedition. At the time of his death, no one believed his hypothesis! Technology developed during the 1940’s changed all that! ...
CD vs. PT
... He could not find the force that was causing the continents to drift. Because of this, he could not convince anyone that continents could move. He died in Greenland on an expedition. At the time of his death, no one believed his hypothesis! Technology developed during the 1940’s changed all that! ...
... He could not find the force that was causing the continents to drift. Because of this, he could not convince anyone that continents could move. He died in Greenland on an expedition. At the time of his death, no one believed his hypothesis! Technology developed during the 1940’s changed all that! ...
Operating Principles of the Superconducting Gravity Meter
... surface of the superconducting sphere. The figure below shows a schematic of the sphere, coils, capacitance bridge, and magnetic flux lines induced on the surface of the superconducting sphere. The current in the coils can be precisely adjusted to balance the force of gravity on the sphere at the ce ...
... surface of the superconducting sphere. The figure below shows a schematic of the sphere, coils, capacitance bridge, and magnetic flux lines induced on the surface of the superconducting sphere. The current in the coils can be precisely adjusted to balance the force of gravity on the sphere at the ce ...
Inside Planet Earth!
... 1. Due to the iron, there are also electrical currents in the core. 2. Without heat & rotation, the core wouldn’t generate a magnetic field. 3. Over the past century, the strength of Earth’s magnetic field has decreased by 10 percent. 4. What is the South Atlantic Anomaly? A weak area in our magneti ...
... 1. Due to the iron, there are also electrical currents in the core. 2. Without heat & rotation, the core wouldn’t generate a magnetic field. 3. Over the past century, the strength of Earth’s magnetic field has decreased by 10 percent. 4. What is the South Atlantic Anomaly? A weak area in our magneti ...
1 ES106 Lab Quiz 1 Study Guide (Lab 1 Properties of Water, Lab 2
... Do you know the difference between mass, volume, length, time, velocity, density? Can you re-arrange an equation to solve for the unknown variable? Can you calculate concentrations in mass percent, ppt Can you explain all of the processes involved with the phase change of water from solid to liquid ...
... Do you know the difference between mass, volume, length, time, velocity, density? Can you re-arrange an equation to solve for the unknown variable? Can you calculate concentrations in mass percent, ppt Can you explain all of the processes involved with the phase change of water from solid to liquid ...
Earth*s Interior - Mr. Cramer
... Magnetic field affects the whole Earth A compass needle aligns with the line of force in Earth’s magnetic field ...
... Magnetic field affects the whole Earth A compass needle aligns with the line of force in Earth’s magnetic field ...
Small-scale Magnetic Field Diagnostics outside Sunspots
... Abstract. We analyse different observational data related to the problem of intrinsic magnetic field strength in small-scale fluxtubes outside sunspots. We conclude that the kG range of fluxtube fields follows from not only classical line ratio method, but also from other old and new techniques. For ...
... Abstract. We analyse different observational data related to the problem of intrinsic magnetic field strength in small-scale fluxtubes outside sunspots. We conclude that the kG range of fluxtube fields follows from not only classical line ratio method, but also from other old and new techniques. For ...
PLATE TECTONICS
... relative to Continents (up to 4.5 b.y.) • Discovery of 40,000 km long Mid Ocean Ridges (MOR) • Age of seafloor increases symmetrically away from MOR crest ...
... relative to Continents (up to 4.5 b.y.) • Discovery of 40,000 km long Mid Ocean Ridges (MOR) • Age of seafloor increases symmetrically away from MOR crest ...
Geomagnetic reversal
A geomagnetic reversal is a change in a planet's magnetic field such that the positions of magnetic north and magnetic south are interchanged. The Earth's field has alternated between periods of normal polarity, in which the direction of the field was the same as the present direction, and reverse polarity, in which the field was the opposite. These periods are called chrons. The time spans of chrons are randomly distributed with most being between 0.1 and 1 million years with an average of 450,000 years. Most reversals are estimated to take between 1,000 and 10,000 years.The latest one, the Brunhes–Matuyama reversal, occurred 780,000 years ago;and may have happened very quickly, within a human lifetime. A brief complete reversal, known as the Laschamp event, occurred only 41,000 years ago during the last glacial period. That reversal lasted only about 440 years with the actual change of polarity lasting around 250 years. During this change the strength of the magnetic field dropped to 5% of its present strength. Brief disruptions that do not result in reversal are called geomagnetic excursions.