modern Appalachians expose zones of low to high grade dynamothermally

Modern appalachians expose zones of low to high grade

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modern Appalachians expose zones of low to high-gradedynamothermally-metamorphosed rock for distances that may be thousands of kmin length and hundreds of km in width False 28.Dissolved ions freed during the process of metasomatism can precipitate to formmineral-?lled cracks called veins. —hydrothermal 틃uids dissolve the ions, which are then free to relocate eitherin veins in the earth or on its surface 29.Contact metamorphism occurs when: 30.Which process would you most expect during hydrothermal metamorphism near amid-ocean ridge? Foliation Pressure solution Dynamothermal metamorphism Metasomatism —metasomatism is the alteration of a rock’s composition due to the interaction with very hot aqueous (water) solution., i.e. hydrothermal solution Dynamic metamorphism CHAPTER 8 QUIZ    (1) A m w magnitude earthquake would be so large that a quake this size would occur only once a century would produce surface waves 10,000 times the amplitude of a 4.2 quake would release approximately 33,000 times the energy of a 4.2 quake is one of the largest possible and is classed as a great quake would produce a reading of about XII on the Mercalli intensity scale There’s a three-step di뮎erence between a 4.2 and 7.2 quake. The di뮎erence in ground shaking (amplitude) for this would be 10 x 10 x 10 = 1,000. The energy di뮎erence would be approximately 32 x 32 x 32, which is almost 33,000. (2)A tsunami Is dangerous near its source but dies out within about 200 miles Can get big but never larger than 30 feet high May be just a low and very broad wave at sea but both slows in speed and grows in height as it approaches a shallowing shore
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Is a special kind of tidal wave caused by gravitational attraction of the Sun, not theMoon.Feedback/Reference: Tsunamis are caused by volcanic or seismic activity or by undersealandslides, can get tens of meters high, and can cross entire ocean basins.
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  • Fall '09
  • ALFONSOMUCCI
  • Plate Tectonics, Igneous rocks, Volcano, false statement

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