Continental Drift and Plate Tectonics
... since drifted apart • Wegener did not have a force to provide the movement so it was not accepted until the 1950’s ● Wegener spent much of his life defending his theory ...
... since drifted apart • Wegener did not have a force to provide the movement so it was not accepted until the 1950’s ● Wegener spent much of his life defending his theory ...
3.2 3.3 3.4 Rock Types
... 1. What are the building blocks of rocks? 2. Minerals that form from magma form as the result of _______________________. 3. Why is color not a useful identification property? 4. What is a mineral’s streak? 5. What is the most common mineral group? ...
... 1. What are the building blocks of rocks? 2. Minerals that form from magma form as the result of _______________________. 3. Why is color not a useful identification property? 4. What is a mineral’s streak? 5. What is the most common mineral group? ...
Plate Tectonics - maxwellsciencenfhs
... • No acceptable mechanism - Where did the energy come from? • Proposes that continents move through oceanic crust – but geological features do not support this (the oceanic crust would deform). • Doesn’t account for the erosion of coastlines that must have occurred over 250,000 years. ...
... • No acceptable mechanism - Where did the energy come from? • Proposes that continents move through oceanic crust – but geological features do not support this (the oceanic crust would deform). • Doesn’t account for the erosion of coastlines that must have occurred over 250,000 years. ...
Seafloor Spreading and Plate Tectonics
... systematically moved across face of the Earth • Current evidence indicates magnetic poles have never moved more than about 20o from geographic poles, thus apparent polar wandering is due to some other factor… ...
... systematically moved across face of the Earth • Current evidence indicates magnetic poles have never moved more than about 20o from geographic poles, thus apparent polar wandering is due to some other factor… ...
THE EXAM WILL INCLUDE TH FOLLOWING QUESTIONS PART A
... Section 3: The Formation, Mining, and Use of Minerals VOCABULARY WORDS ...
... Section 3: The Formation, Mining, and Use of Minerals VOCABULARY WORDS ...
How do the Tectonic Plates on the Earth`s crust move ? The crust of
... which is mainly found beneath the oceans is made mostly from heavy basalt rock. Continental crust which is mainly dry land is formed predominantly from a lighter granite rock. Where both of these types of crust meet and push against each other, the heavier oceanic crust sinks underneath the lighter ...
... which is mainly found beneath the oceans is made mostly from heavy basalt rock. Continental crust which is mainly dry land is formed predominantly from a lighter granite rock. Where both of these types of crust meet and push against each other, the heavier oceanic crust sinks underneath the lighter ...
The Precambrian - Ms. Alderson`s Earth and Space Science course
... the left shows the comparative difference in duration of these eras. Thus throughout most of the period the Earth has been in existence, there has been life, but life of a very primitive kind, analogous to modern bacteria. These singlecelled microorganisms are distinguished from more advanced life i ...
... the left shows the comparative difference in duration of these eras. Thus throughout most of the period the Earth has been in existence, there has been life, but life of a very primitive kind, analogous to modern bacteria. These singlecelled microorganisms are distinguished from more advanced life i ...
Earth`s surface consists of a number of rigid, but moving, pieces
... _____________) was first explained when _____________ ____________________, a German scientist, discovered several pieces of evidence. What is some evidence that supports this theory? ...
... _____________) was first explained when _____________ ____________________, a German scientist, discovered several pieces of evidence. What is some evidence that supports this theory? ...
10-2
... _____ 50. What happens to newer, warmer rock at a mid-ocean ridge as it cools? a. It is elevated above nearby rock. b. It slopes downward away from the ridge. c. It slides down the slope between the lithosphere and the asthenosphere. d. It exerts force on the plate. 51. The force on the rest of the ...
... _____ 50. What happens to newer, warmer rock at a mid-ocean ridge as it cools? a. It is elevated above nearby rock. b. It slopes downward away from the ridge. c. It slides down the slope between the lithosphere and the asthenosphere. d. It exerts force on the plate. 51. The force on the rest of the ...
Restless Earth - DesignWorlds for Learning, Inc.
... pressure, crust, basalt, granite, mantle, lithosphere, asthenosphere, outer core, inner core Activating Prior Knowledge If you dig down far enough through the dirt, what does your shovel hit? Other than rock, what else do you think is below the surface of Earth? Explain that over the rest of the sem ...
... pressure, crust, basalt, granite, mantle, lithosphere, asthenosphere, outer core, inner core Activating Prior Knowledge If you dig down far enough through the dirt, what does your shovel hit? Other than rock, what else do you think is below the surface of Earth? Explain that over the rest of the sem ...
CONSTRUCTING A SEA-FLOOR SPREADING MODEL
... The lithosphere is composed of the crust and upper mantle and is broken into large pieces know as plates. The lithospheric plates, carrying both oceanic and continental rock, “float” on the plastic part of the mantle below the lithosphere. Plates move together, separate, and slide past each other cr ...
... The lithosphere is composed of the crust and upper mantle and is broken into large pieces know as plates. The lithospheric plates, carrying both oceanic and continental rock, “float” on the plastic part of the mantle below the lithosphere. Plates move together, separate, and slide past each other cr ...
Power Point File 5 - KFUPM Faculty List
... mantle that behaves as a solid for seismic wave propagation and as a very viscous fluid for long duration geologic processes including convection. ...
... mantle that behaves as a solid for seismic wave propagation and as a very viscous fluid for long duration geologic processes including convection. ...
Index Fossils - Indian Academy of Sciences
... The correct age determination of fossils is necessary. In other respect, it was very difficult to understand their antiquity and importance in establishing earth's history except to say that one fossil was older or younger in respect of others. However, this problem has been solved by applying the ' ...
... The correct age determination of fossils is necessary. In other respect, it was very difficult to understand their antiquity and importance in establishing earth's history except to say that one fossil was older or younger in respect of others. However, this problem has been solved by applying the ' ...
File - Vagabond Geology
... Why are we interested in farming and grazing areas? They along with iron, coal, and oil have shaped human history from the beginning ...
... Why are we interested in farming and grazing areas? They along with iron, coal, and oil have shaped human history from the beginning ...
earthquakes I
... • Earthquakes occur where there are breaks in the crust of the earth. Usually there are large plates of crust that move against each other. When the plates move side by side the rubbing together makes vibrations and these are earthquakes. The sliding plates grind off pieces of rock as they move. If ...
... • Earthquakes occur where there are breaks in the crust of the earth. Usually there are large plates of crust that move against each other. When the plates move side by side the rubbing together makes vibrations and these are earthquakes. The sliding plates grind off pieces of rock as they move. If ...
AT24-05_Precis_130503 - University of California, Santa Cruz
... Seafloor hydrothermal circulation is… …the passage of warm (or hot) water through rock of the oceanic crust; …generally a result of heating from below, although it can also occur immediately adjacent to newly-erupted magma; …partly responsible for making the ocean "salty"; …thought likely to have o ...
... Seafloor hydrothermal circulation is… …the passage of warm (or hot) water through rock of the oceanic crust; …generally a result of heating from below, although it can also occur immediately adjacent to newly-erupted magma; …partly responsible for making the ocean "salty"; …thought likely to have o ...
Sample Unit of Study - New York Science Teacher
... 3. Laboratory activities: A. Identifying Plate boundaries and motions. B. Locating Earthquake Epicenters C. Activities at Plate Boundaries 4. A unit test consisting of 25-30 Regent’s style multiple choice questions and 3-5 extended concept questions. ...
... 3. Laboratory activities: A. Identifying Plate boundaries and motions. B. Locating Earthquake Epicenters C. Activities at Plate Boundaries 4. A unit test consisting of 25-30 Regent’s style multiple choice questions and 3-5 extended concept questions. ...
k11 Subdivisions of Precambrian time < Great Lakes - e
... Rocks older than the Cambrian are not widely exposed in Europe where the geologic column was devised. There, Precambrian rocks either are apparently unfossiliferous sedimentary strata called Eocambrian or, where they underlie fossiliferous strata nonconformably, are schists and gneisses, much fold-c ...
... Rocks older than the Cambrian are not widely exposed in Europe where the geologic column was devised. There, Precambrian rocks either are apparently unfossiliferous sedimentary strata called Eocambrian or, where they underlie fossiliferous strata nonconformably, are schists and gneisses, much fold-c ...
Summary from Previous Class
... P,T, density variation in the earth’s interior Transition Zone, Two-layered vs. whole mantle convection Plate tectonics, Plumes, Wilson Cycle, and recent hypotheses by Anderson and Larson ...
... P,T, density variation in the earth’s interior Transition Zone, Two-layered vs. whole mantle convection Plate tectonics, Plumes, Wilson Cycle, and recent hypotheses by Anderson and Larson ...
Dynamic Ocean Floor
... • Two plates move away from one another. • This is a zone of weakness. • As two plates move apart at the mid-ocean ridges, magma from the mantle up wells through a crack in the oceanic crust and cooled by the sea creating new ocean floor. • Energy is released in the form of earthquakes. • Shallow fo ...
... • Two plates move away from one another. • This is a zone of weakness. • As two plates move apart at the mid-ocean ridges, magma from the mantle up wells through a crack in the oceanic crust and cooled by the sea creating new ocean floor. • Energy is released in the form of earthquakes. • Shallow fo ...
Sea floor spreading and the effects it has on the world In partnership
... New seafloor rock is formed by the ridges under the sea because as the plates spread molten material from the earth’s interior (mantle) rises to the surface and the cool sea water hardens this material into rock. The divergent plates constantly produces new rock from Earth’s mantle. The seafloor clo ...
... New seafloor rock is formed by the ridges under the sea because as the plates spread molten material from the earth’s interior (mantle) rises to the surface and the cool sea water hardens this material into rock. The divergent plates constantly produces new rock from Earth’s mantle. The seafloor clo ...
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.