Plate Tectonics - My Teacher Pages
... composed of plates that move on a liquid molten layer (similar to icebergs floating on water) Alfred Wegener a German meteorologist developed the theory of continental drift in ...
... composed of plates that move on a liquid molten layer (similar to icebergs floating on water) Alfred Wegener a German meteorologist developed the theory of continental drift in ...
Matching Continental Margins
... New rock is formed at mid-ocean ridges as magma pours out from beneath the surface. In areas called subduction zones, the oceanic crust is pushed below the continental crust. The worlds volcanoes and earthquakes are found where these regions of subduction and collision occur. As new rock forms at mi ...
... New rock is formed at mid-ocean ridges as magma pours out from beneath the surface. In areas called subduction zones, the oceanic crust is pushed below the continental crust. The worlds volcanoes and earthquakes are found where these regions of subduction and collision occur. As new rock forms at mi ...
Alfred Wegener`s Theory of Continental Drift B M d Pl t T t i Became
... fC i l Drift” originated by Alfred Wegener. The development of the theory is an excellent example of the application of the scientific method. Plate Tectonics represents a total shift of scientific paradigm. Plate Tectonics represents a total shift of scientific paradigm The prevailing view wa ...
... fC i l Drift” originated by Alfred Wegener. The development of the theory is an excellent example of the application of the scientific method. Plate Tectonics represents a total shift of scientific paradigm. Plate Tectonics represents a total shift of scientific paradigm The prevailing view wa ...
Platemovementrecapquiz 5.08MB 2017-03-29 12
... Which type of crust does each abbreviation apply to? SIMA = silicon, magnesium, oxygen (oceanic) SIAL = silicon, aluminium, oxygen (continental) ...
... Which type of crust does each abbreviation apply to? SIMA = silicon, magnesium, oxygen (oceanic) SIAL = silicon, aluminium, oxygen (continental) ...
Inside Earth – Chapter 1
... About 265 million years ago, a reptile called Mesosaurus lived in just a few places on Earth. This fairly small, lizardlike reptile measured 71 centimeters from its nose to the tip of its tail—or about two thirds of a meter. Its body was long and flexible, perfect for swimming swiftly through the wa ...
... About 265 million years ago, a reptile called Mesosaurus lived in just a few places on Earth. This fairly small, lizardlike reptile measured 71 centimeters from its nose to the tip of its tail—or about two thirds of a meter. Its body was long and flexible, perfect for swimming swiftly through the wa ...
Continental Drift
... boundaries are also present under continents during the early stages of continental breakup when magma wells up the crust is initially elevated, stretched and thinned ...
... boundaries are also present under continents during the early stages of continental breakup when magma wells up the crust is initially elevated, stretched and thinned ...
restless continents text
... When Wegener put forth his hypothesis of continental drift, many scientists would not accept his hypothesis. From the calculated strength of the rocks, it did not seem possible for the crust to move in this way. During Wegener’s life, no one knew the answer. It wasn’t until many years later that evi ...
... When Wegener put forth his hypothesis of continental drift, many scientists would not accept his hypothesis. From the calculated strength of the rocks, it did not seem possible for the crust to move in this way. During Wegener’s life, no one knew the answer. It wasn’t until many years later that evi ...
Module E: Unit 2, Lesson 4 - The Geologic Time Scale
... • The era ended about 250 million years ago with a huge mass extinction event. • During the Cambrian Explosion, new species evolved rapidly in Earth’s shallow seas. What were some defining events of the Mesozoic Era? • During the Mesozoic Era, which began about 250 million years ago, Pangaea began b ...
... • The era ended about 250 million years ago with a huge mass extinction event. • During the Cambrian Explosion, new species evolved rapidly in Earth’s shallow seas. What were some defining events of the Mesozoic Era? • During the Mesozoic Era, which began about 250 million years ago, Pangaea began b ...
Continental Drift Theory of Alfred Wegener
... Continental drift is the movement of the Earth's continents relative to each other by appearing to drift across the ocean bed. The speculation that continents might have 'drifted' was first put forward by Abraham Ortelius in 1596. The concept was independently and more fully developed by Alfred Wege ...
... Continental drift is the movement of the Earth's continents relative to each other by appearing to drift across the ocean bed. The speculation that continents might have 'drifted' was first put forward by Abraham Ortelius in 1596. The concept was independently and more fully developed by Alfred Wege ...
Lecture Slides
... 2. Initial Pb must be known/modeled or you must chose minerals that have essentially no initial Pb (zircon, apatite, monazite). 3. 235U/238U known today (1/137.88) and invariant across most of planet. 4. Still a problem, the equation: ...
... 2. Initial Pb must be known/modeled or you must chose minerals that have essentially no initial Pb (zircon, apatite, monazite). 3. 235U/238U known today (1/137.88) and invariant across most of planet. 4. Still a problem, the equation: ...
1. Evidence for the rearrangement of crustal plates and continental
... south where it is beginning to split apart; it will take many millions of years to separate completely. It is possible to “jigsaw puzzle” most of the southern continents back together to form Gondwana as it probably was 100mya. There is considerable evidence that the climates have not always been th ...
... south where it is beginning to split apart; it will take many millions of years to separate completely. It is possible to “jigsaw puzzle” most of the southern continents back together to form Gondwana as it probably was 100mya. There is considerable evidence that the climates have not always been th ...
mantle
... Accretionary wedge—Sediments, the top layer of material on a tectonic plate, that accumulate and deform where oceanic and continental plates collide. These sediments are scraped off the top of the down-going oceanic crustal plate and are appended to the edge of the continental plate. Asthenosphere—t ...
... Accretionary wedge—Sediments, the top layer of material on a tectonic plate, that accumulate and deform where oceanic and continental plates collide. These sediments are scraped off the top of the down-going oceanic crustal plate and are appended to the edge of the continental plate. Asthenosphere—t ...
Historical Geology and the history of the continents
... diversification of organisms and the dinosaurs became the dominant group. ...
... diversification of organisms and the dinosaurs became the dominant group. ...
31. From Continental Drift to Plate Tectonics
... some of the southern landmasses. During the Permian Period there existed a small freshwater reptile called Mesosaurus whose fossils are found in similar rocks in South Africa and in Brazil. A bit later, during the early Triassic Period, a medium-sized reptile called Lystrosaurus left its remains in ...
... some of the southern landmasses. During the Permian Period there existed a small freshwater reptile called Mesosaurus whose fossils are found in similar rocks in South Africa and in Brazil. A bit later, during the early Triassic Period, a medium-sized reptile called Lystrosaurus left its remains in ...
Outcome 7.4 Assessment Flash Cards Answers in this font
... Outcome 7.4 Assessment Flash Cards Questions in this font ...
... Outcome 7.4 Assessment Flash Cards Questions in this font ...
Notes for the Test Word Definition Pangaea Pangaea is the name
... Notes for the Test Word Pangaea ...
... Notes for the Test Word Pangaea ...
Planet Earth - MSU Billings
... • 8. Earth is a differentiated planet, with its materials segregated and concentrated into layers according to density. The internal layers based on composition are (a) crust, (b) mantle, and (c) core. The major internal layers based on physical properties are (a)lithosphere, (b) asthenosphere, (c) ...
... • 8. Earth is a differentiated planet, with its materials segregated and concentrated into layers according to density. The internal layers based on composition are (a) crust, (b) mantle, and (c) core. The major internal layers based on physical properties are (a)lithosphere, (b) asthenosphere, (c) ...
File
... • A gentle slope with a generally smooth surface, built up by the shedding of sediments from the continental block, and located between the continental slope and the abyssal plain. ...
... • A gentle slope with a generally smooth surface, built up by the shedding of sediments from the continental block, and located between the continental slope and the abyssal plain. ...
Layers of the Earth
... • Crust-Like the shell of an egg is very thin (roughly 5km thick). Mostly Silica and Oxygen. Very brittle. • Continental crust is thick. Made of granite. • Oceanic crust is thin. Made of basalt. ...
... • Crust-Like the shell of an egg is very thin (roughly 5km thick). Mostly Silica and Oxygen. Very brittle. • Continental crust is thick. Made of granite. • Oceanic crust is thin. Made of basalt. ...
Partial melting
... that, compared to continental crust, is relatively enriched in iron and magnesium and depleted in silica (SiO2) (because it reflects the chemistry of the mantle). As two plates continue to move apart, the rock in the seafloor grows older as its distance from the rift zone increases, and as it ages, ...
... that, compared to continental crust, is relatively enriched in iron and magnesium and depleted in silica (SiO2) (because it reflects the chemistry of the mantle). As two plates continue to move apart, the rock in the seafloor grows older as its distance from the rift zone increases, and as it ages, ...
Activity #8 slide presentation pdf
... "Scientists still do not appear to understand sufficiently that all earth sciences must contribute evidence toward unveiling the state of 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 furnishe ...
... "Scientists still do not appear to understand sufficiently that all earth sciences must contribute evidence toward unveiling the state of 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 furnishe ...
Plate Tectonic Theory
... http://www.cnn.com/2012/10/01/tech/mantle-earth-drillmission/index.html ...
... http://www.cnn.com/2012/10/01/tech/mantle-earth-drillmission/index.html ...
Mountain Building
... e. Example of inactive Andean-type orogenic belt--Sierra Nevada Range and California's Coast Ranges IV. Continental collisions is third mechanism of mountain building at convergent plate margins A. Where two plates with continental crust converge 1. India and Eurasian plate collision 2.Himalayan Mou ...
... e. Example of inactive Andean-type orogenic belt--Sierra Nevada Range and California's Coast Ranges IV. Continental collisions is third mechanism of mountain building at convergent plate margins A. Where two plates with continental crust converge 1. India and Eurasian plate collision 2.Himalayan Mou ...
Task 1 Plates Are Moving Beneath You
... moves down into the asthenosphere it begins to melt. The place where they meet has a crack or a trench. Some of the deepest parts of the oceans are these trenches. ...
... moves down into the asthenosphere it begins to melt. The place where they meet has a crack or a trench. Some of the deepest parts of the oceans are these trenches. ...
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.