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Passive margin
Passive margin

...  Any closer-too hot, water evaporates  Any further-too cold, all water freezes  Any smaller (~30%) then not enough gravitational pull ...
Chapter 21.1 PPT - Madison County Schools
Chapter 21.1 PPT - Madison County Schools

... – The crust and upper portion of the mantle are divided into about seven large pieces called tectonic plates. • lithosphere: the solid outer layer of Earth that consists of the crust and the rigid upper part of the mantle • plate tectonics: the theory that explains how large pieces of the lithospher ...
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Name

... curves. Scientists determine which reflectance curves show plants, water, soil, and other materials on earth. Together, satellite images and spectral analysis allow scientists to gather information on the Earth from a distance. Ground truthing is when scientists directly observe the areas they are a ...
Climate Test
Climate Test

... A. because it is located in mid-latitude region B. because of the species diversity C. because it is close to the desert D. because it is located where the sun’s rays most directly strike the earth 9. Temperate zones receive _____ solar energy than polar zones. A. less B. more C. the same amount of ...
Final Plate Tectonics Review
Final Plate Tectonics Review

... over 250 million years ago the continents were one big landmass that eventually drifted over time to the positions they are today ? Continental drift theory ...
August 2008
August 2008

... Instructions: Complete all items in this section. Your responses should be clearly presented in a well-organized manner. ...
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practice exam

... 35) Wave height is defined as the vertical distance separating the _________ from the _________. 36) A substantial rise in sea level along a coast during a severe storm is called a storm a) tide b) surge c) surf d) swell e) tsunami 37) Water particles in waves move: a) only up and down b) only back ...
Density of Earth Materials Lab - Mercer Island School District
Density of Earth Materials Lab - Mercer Island School District

... its average composition is similar to the rock granite. Granite is a felsic rock (which means it has a high feldspar and silica content), composed of quartz, potassium-rich feldspar, and mica. Mafic rocks contain denser minerals and therefore, oceanic crust is denser than continental crust (the aver ...
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DATASHEETforHANDOUTBWITHANSWERS

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Name - www .alexandria .k12 .mn .us
Name - www .alexandria .k12 .mn .us

... 8. Plate Tectonics Theory has been widely accepted since the ___________’s. It states that Earth’s outer layer or _________________ is broken up into ________________. These plates hold ______________________ and _____________________. They are constantly __________________________. 9. Continents ov ...
Study guide: exam #1
Study guide: exam #1

... Chapter 8:~18% of exam o Plate tectonic setting of volcanoes (covered in previous section)  Extension  Divergent  Subduction zones  Hot spots under oceanic crust and continental crust o Magma sources depends on location o Geothermal gradient o Pressure gradient within the Earth o Chemical and m ...
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Bill Nye Earthquake Video Notes

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Ms. Harris 10/01/2013 Igneous Rock and

... Material that exist below the earth’s surface. A molten materials cool under the earth’s surface is called Magma. Because it is below the surface, magma cools and hardens slowly. The slower it cools, the larger the material grains can become= rock with coarse texture such as granite. Tends to rise u ...
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Geoscience Day Starters
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... What two things most influence the density of seawater? Salinity and gravity c. Temperature and lattitude Salinity and temperature d. Temperature and current values ...
MEMO TO: Lisa A. Sarvestaney, M.A., Instructor FROM: Charles
MEMO TO: Lisa A. Sarvestaney, M.A., Instructor FROM: Charles

... defined as a naturally occurring, inorganic solid element or compound with crystalline structure” (442). In plain English, a rock is a jumble of elements and minerals formed under high temperature, pressure, and time. A mineral can be a rock; however, a rock is not a mineral. The key qualifier is th ...
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... 30. Precipitation is water droplets fall from the atmosphere in the form of rain, sleet, snow, or hail. 31. Gravity impacts the water cycle through precipitation and runoff. 32. Runoff is rainfall that is not absorbed by soil and travels to the ocean via rivers, streams, and groundwater. 33. The sun ...
Final Exam Study Guide 2016
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... 1. If you are trying to explain to someone how to identify where the youngest and oldest rocks on the ocean floor are located, how would you explain it? 2. List and describe the layers of the Earth. 3. The Earth’s plates have a specific layer of the Earth that enables the plates to move. What is thi ...
Lecture notes 100805
Lecture notes 100805

... Above the ionosphere about 700 km in height is the lower border for the Magnetosphere, which besides the Earth’s outer magnetic field also has electrons and protons trapped by that field. The “individual” particles move as such over very large distances. Some physicists want to incorporate the magne ...
Chapter 3 The Dynamic Earth Section 1, The Geosphere Day 1
Chapter 3 The Dynamic Earth Section 1, The Geosphere Day 1

... • The ___________________________________ is the part of Earth where life exists, extending about 11 km into the ocean and about 9 km into the atmosphere. • The materials that organisms require must be continually recycled. • _______________________________________ allows a planet to maintain an atm ...
Magnetic Reversal LAB 2017
Magnetic Reversal LAB 2017

... In 1962 the US Navy published their surveys of the oceans, and areas on either side of the mid-ocean ridges showing patterns of magnetic changes that were repeated identically (mirrored) on either side of the spreading ridge. Two British geologists, Frederick Vine and Drummond Matthews, read the inf ...
chapter 1 answer key - Novella
chapter 1 answer key - Novella

... 3. The planets of the solar system differ in their compositions as a function of their distance from the sun. The composition of the earth is quite different from the composition of most of the planets, and so far it is the only planet known to contain life. 4. The early earth, which lacked oceans a ...
Lab 8
Lab 8

... 1. The declination of a lava is 8 degrees. Give at least 2 possible explanations why it is not zero. 2. The Earth’s magnetic field is similar to the field that would be produced by a huge bar magnet at its center. Give 2 reasons why it cannot be a magnet. 3. Two rocks have the same iron content, yet ...
chapter 1 answer key - Novella
chapter 1 answer key - Novella

... 3. The planets of the solar system differ in their compositions as a function of their distance from the sun. The composition of the earth is quite different from the composition of most of the planets, and so far it is the only planet known to contain life. 4. The early earth, which lacked oceans a ...
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Geophysics



Geophysics /dʒiːoʊfɪzɪks/ is a subject of natural science concerned with the physical processes and physical properties of the Earth and its surrounding space environment, and the use of quantitative methods for their analysis. The term geophysics sometimes refers only to the geological applications: Earth's shape; its gravitational and magnetic fields; its internal structure and composition; its dynamics and their surface expression in plate tectonics, the generation of magmas, volcanism and rock formation. However, modern geophysics organizations use a broader definition that includes the water cycle including snow and ice; fluid dynamics of the oceans and the atmosphere; electricity and magnetism in the ionosphere and magnetosphere and solar-terrestrial relations; and analogous problems associated with the Moon and other planets.Although geophysics was only recognized as a separate discipline in the 19th century, its origins go back to ancient times. The first magnetic compasses were made from lodestones, while more modern magnetic compasses played an important role in the history of navigation. The first seismic instrument was built in 132 BC. Isaac Newton applied his theory of mechanics to the tides and the precession of the equinox; and instruments were developed to measure the Earth's shape, density and gravity field, as well as the components of the water cycle. In the 20th century, geophysical methods were developed for remote exploration of the solid Earth and the ocean, and geophysics played an essential role in the development of the theory of plate tectonics.Geophysics is applied to societal needs, such as mineral resources, mitigation of natural hazards and environmental protection. Geophysical survey data are used to analyze potential petroleum reservoirs and mineral deposits, locate groundwater, find archaeological relics, determine the thickness of glaciers and soils, and assess sites for environmental remediation.
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