How thick is Continental crust?
... The plates "float" on the soft, plastic mantle which is located below the crust. These plates usually move along smoothly but sometimes they stick and build up pressure. The pressure builds and the rock bends until it snaps. This is what we feel as an Earthquake! ...
... The plates "float" on the soft, plastic mantle which is located below the crust. These plates usually move along smoothly but sometimes they stick and build up pressure. The pressure builds and the rock bends until it snaps. This is what we feel as an Earthquake! ...
Chapter 1 Introduction – Review of Rocks and
... eruption or a tsunami coming ashore both represent sudden events that can create great damage, loss, or destruction to some region of the Earth. Though some in academia argue that such events are not natural disasters unless they affect man or one of his structures or ...
... eruption or a tsunami coming ashore both represent sudden events that can create great damage, loss, or destruction to some region of the Earth. Though some in academia argue that such events are not natural disasters unless they affect man or one of his structures or ...
Stratigraphic Principles
... • A lithostratigraphic unit conforms to the law of superposition, which state that in any succession of strata, not disturbed or overturned since deposition, younger rocks lies above older rocks. The law of horizontal continuity states that a set of bed extends and can be traceable over a large are ...
... • A lithostratigraphic unit conforms to the law of superposition, which state that in any succession of strata, not disturbed or overturned since deposition, younger rocks lies above older rocks. The law of horizontal continuity states that a set of bed extends and can be traceable over a large are ...
Name: Date: Period: ______
... side of the Atlantic Ocean, and he proposed that North America and South America had been separated from Europe and Africa by earthquakes and floods. The first time that the idea of moving continents was proposed as a scientific hypothesis was in 1912 when German scientist Alfred Wegener presented ...
... side of the Atlantic Ocean, and he proposed that North America and South America had been separated from Europe and Africa by earthquakes and floods. The first time that the idea of moving continents was proposed as a scientific hypothesis was in 1912 when German scientist Alfred Wegener presented ...
CRCT Review - Chapter 7 Plate Tectonics.
... _____ 10. What hypothesis by Alfred Wegener explains why continents seem to fit together? a. continental spreading c. Wegener’s puzzle b. plate tectonics d. continental drift _____ 11. What did Wegener hypothesize happened to the continents? a. They broke up and re-formed. b. They drifted together t ...
... _____ 10. What hypothesis by Alfred Wegener explains why continents seem to fit together? a. continental spreading c. Wegener’s puzzle b. plate tectonics d. continental drift _____ 11. What did Wegener hypothesize happened to the continents? a. They broke up and re-formed. b. They drifted together t ...
Chapter 6
... a new rock. 4. the rock does not melt, it is rearranged. _______________________________________ major source of metamorphic rock. Occurs in large areas, often associated with mountain building. ...
... a new rock. 4. the rock does not melt, it is rearranged. _______________________________________ major source of metamorphic rock. Occurs in large areas, often associated with mountain building. ...
Atmosphere Hydrosphere Lithosphere
... All of the water on planet Earth “71% of the earth is covered by water and only 29% is terra firma” (University of Florida). “Blue Planet” – water is not found on any other planets in our solar system. “It is because the Earth has just the right mass, the right chemical composition, the righ ...
... All of the water on planet Earth “71% of the earth is covered by water and only 29% is terra firma” (University of Florida). “Blue Planet” – water is not found on any other planets in our solar system. “It is because the Earth has just the right mass, the right chemical composition, the righ ...
Continental Drift
... Magnetic Reversals Earth’s magnetic field does not always point north Magnetic reversals – orientation is opposite of normal “Normal” rocks and “Reversal” rocks line up by time period Alternating normal and reversed polarity over time Geomagnetic time scale ...
... Magnetic Reversals Earth’s magnetic field does not always point north Magnetic reversals – orientation is opposite of normal “Normal” rocks and “Reversal” rocks line up by time period Alternating normal and reversed polarity over time Geomagnetic time scale ...
Earth and Space Science 2015 Semester 2 Exam Review Part 1 Convection
... Plates slide by each other (adjacent) without creating or consuming lithosphere. ...
... Plates slide by each other (adjacent) without creating or consuming lithosphere. ...
What is the Theory of Plate Tectonics?
... Causes of Plate Motions Convection currents in the mantle are thought to be the driving mechanism of plate movements. Even though the mantle is a solid, part of it, the asthenosphere, can flow like a soft, pliable plastic. The currents in this part of the mantle are set in motion by the transfer ...
... Causes of Plate Motions Convection currents in the mantle are thought to be the driving mechanism of plate movements. Even though the mantle is a solid, part of it, the asthenosphere, can flow like a soft, pliable plastic. The currents in this part of the mantle are set in motion by the transfer ...
Earth: An Ever changing planet
... • Haden: Earth before life evolved 3.5 to 3.9 Billion years ago • Achaean: Earth with only prokaryotic cells – 3.9 to 2.5 Billion years ago ...
... • Haden: Earth before life evolved 3.5 to 3.9 Billion years ago • Achaean: Earth with only prokaryotic cells – 3.9 to 2.5 Billion years ago ...
Earth: An Ever changing planet
... • Haden: Earth before life evolved 3.5 to 3.9 Billion years ago • Achaean: Earth with only prokaryotic cells – 3.9 to 2.5 Billion years ago ...
... • Haden: Earth before life evolved 3.5 to 3.9 Billion years ago • Achaean: Earth with only prokaryotic cells – 3.9 to 2.5 Billion years ago ...
Layers of the Earth Project
... Materials: Be Creative! Recycled materials and other ideas are : cloth, paper mache, plastic bottles, etc…) Common materials: Styrofoam ball, toothpicks, paper, and paint. ...
... Materials: Be Creative! Recycled materials and other ideas are : cloth, paper mache, plastic bottles, etc…) Common materials: Styrofoam ball, toothpicks, paper, and paint. ...
Solutions: Chapter 20 Exercises 1. When the composition is the
... 11. Just as shaving off the top of an iceberg would lighten the iceberg, and cause it to float higher, the erosion and wearing away of mountains lightens them and causes them to buoyantly float higher on the mantle. Whether the elevation of the mountain increases or decreases depends on the rate of ...
... 11. Just as shaving off the top of an iceberg would lighten the iceberg, and cause it to float higher, the erosion and wearing away of mountains lightens them and causes them to buoyantly float higher on the mantle. Whether the elevation of the mountain increases or decreases depends on the rate of ...
Review
... 9. What are the three basic plate boundaries? What features are found at each type of plate boundary? How do plate move with respect to each type of plate boundaries? 10. What are the three patterns to age stripes on the ocean floor? 11. Can you name a specific geographic location where each type of ...
... 9. What are the three basic plate boundaries? What features are found at each type of plate boundary? How do plate move with respect to each type of plate boundaries? 10. What are the three patterns to age stripes on the ocean floor? 11. Can you name a specific geographic location where each type of ...
1-2 Notes: Continental Drift Continents Join Together and Split Apart
... When Wegener developed his hypothesis, he could not explain __________ the continents moved. Because of this, people disregarded his idea at first. The theory of plate ___________________ built on Wegener’s ideas but also explained HOW plates and their continents move. Evidence from the Sea Fl ...
... When Wegener developed his hypothesis, he could not explain __________ the continents moved. Because of this, people disregarded his idea at first. The theory of plate ___________________ built on Wegener’s ideas but also explained HOW plates and their continents move. Evidence from the Sea Fl ...
Earth: An Ever changing planet
... • Different periods of Earth’s history are broken into periods of time – just like a year is broken into months, weeks, days and hours • Earth history is broken into eons, eras, periods, epochs ...
... • Different periods of Earth’s history are broken into periods of time – just like a year is broken into months, weeks, days and hours • Earth history is broken into eons, eras, periods, epochs ...
Geomorphology
... in the mantle move and form convection currents. When the current moves to the surface, it diverges. As it moves up it pushes the plate up a bit, and then moves to either side and drags the plates apart. As it drags them apart, some material spews out onto the surface, creating new plate. This is a ...
... in the mantle move and form convection currents. When the current moves to the surface, it diverges. As it moves up it pushes the plate up a bit, and then moves to either side and drags the plates apart. As it drags them apart, some material spews out onto the surface, creating new plate. This is a ...
Seismix2003
... The iSIMM project is investigating the structure of North Atlantic rifted continental margins using state-of-the art seismic data recorded in summer 2002, integrated with new models of rifted margin formation incorporating heterogeneous stretching, the effects of melt generation and emplacement and ...
... The iSIMM project is investigating the structure of North Atlantic rifted continental margins using state-of-the art seismic data recorded in summer 2002, integrated with new models of rifted margin formation incorporating heterogeneous stretching, the effects of melt generation and emplacement and ...
Semester 1 Study Guide Key
... Which type of rock cannot which destroys fossils have fossils? Why? you found a rock that was black, dull, and had organic matter (plants/ fossils) what kind of rock would it be? Name the rock. ...
... Which type of rock cannot which destroys fossils have fossils? Why? you found a rock that was black, dull, and had organic matter (plants/ fossils) what kind of rock would it be? Name the rock. ...
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.