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Collisional Mountain Ranges, Fault-Block Mountains, and Vertical Movements of the Crust

Earth/Space Honors Project
by

M. U.

on 6 June 2013

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Transcript of Collisional Mountain Ranges, Fault-Block Mountains, and Vertical Movements of the Crust

Fault-Block Mountains A mountain formed by the displacement
of rock along a fault. Def.- a fracture in the Earth's crust where movement has occurred. Examples of Fault-Block Mountains: 1.)Sierra Nevada Mountains of California 2.)Grand Tetons Mountains of Wyoming 3.)Wasatch Mountain in Utah This photo was taken in the capital of Salt Lake City, Utah 4.) Harz Mountains in Germany Most fault-block mountains form in response to broad uplifting, which causes it to extend and fault One of Earth's Largest Regions of Fault-Block Mountains is
the Basin and Range Province It extends for 3,000 kilometers (2,000 miles) This region surrounds some portion of the the western states of:
Nevada
California
Arizona
Idaho
Washington
Oregon
Utah Continental collisions result from the formation of mountains that are characterized by shortened & thickened crust. Collisional Mountain Ranges Mountain Belts can develop from either:
the collision and merger of an island arc
small crustal fragment to a continental block
the collision and joining of two of more continents. The North American Cordillera was formed through the accretion (joining together) of crustal fragments to a continental mass. The North American Cordillera The North American Cordillera lays on the entire Pacific margin,
and extends from northern Alaska to Mexico's Baja Peninsula. Terrane- a crustal block bounded by faults, whose geologic history is distant from the histories of adjoining crustal blocks, EXAMPLES OF COLLISION MOUNTAINS: THE HIMALAYAS THE APPALACHIANS The Appalachian Mountain Range extends from Northeastern ALL THE WAY THROUGH Newfoundland, Canada The Himalayan Mountain Range extends across Northeastern Passes through 5 other countries 5. 4. 3. 2. 1. VERTICAL MOVEMENT OF THE CRUST Most vertical movements of the upward-and-downward motions of the continental crust, take place near the plate margins. ISOSTASY WHEN A FLOATING CRUST IS IN GRAVITATIONAL BALANCE UPON THE MATERIAL OF THE MANTLE. ISOS= EQUAL, STASIS= STANDSTILL IS just like wooden blocks being buoyant in water Isostatic adjustment is the process of establishing a new level of gravitational equilibrium. so when you take out the added weight, the crust will bounce back to its original weight. SOURCES www.britannica.com/EBchecked/topic/394808/mountain/49668/The-North-American-Cordillera#ref499702

http://terra.rice.edu/department/faculty/morganj/ESCI536/Lecture.01.20/CordilleranGeologyLecture.pdf
THIS 1 IS THE PICS

http://dictionary.reference.com/

http://www.platetectonics.com/book/page_11.asp

http://www.geosociety.org/gsatoday/archive/17/4/pdf/i1052-5173-17-4-4.pdf

http://factsanddetails.com/world.php?itemid=1316&catid=51

http://www.universetoday.com/29823/fault-block-mountains/

http://geomaps.wr.usgs.gov/sfgeo/quaternary/stories/what_fault.html
the website with the fault definition

http://books.google.com/books?id=HYqZntfg25UC&pg=PA287#v=onepage&q&f=false

http://en.wikipedia.org/wiki/Fault_block

http://geography.geography-dictionary.org/Geography-Dictionary/Fault_Block_Mountain DEF.
FAULT- BLOCK MOUNTAIN

http://www.pbs.org/weta/thewest/places/states/california/ca_sierra.htm

http://www.eosnap.com/lakes/lakes-near-california-nevada-border-usa/

http://www.nps.gov/grte/index.htm

http://www.shannontech.com/ParkVision/GrandTeton/GrandTeton.html

http://mountainstoday.com/tectonic-mountains/

http://world-geography.org/mountain/38-appalachian-mountains.html

http://www.fas.org/irp/imint/docs/rst/Sect2/Sect2_1b.html

http://cosscience1.pbworks.com/w/page/8286031/Lesson%2010-5%20Convergent%20and%20Transform%20Boundaries

http://www.pbs.org/wnet/nature/episodes/the-himalayas/himalayas-facts/6341/ Mountain Belt is a group of extended mountain ranges The crustal thickening is then achieved through folding and faulting. DEFINITION EARTH/SPACE SCIENCE TEXTBOOK FOLD- A BENT ROCK LAYER 30 SECOND VIDEO- iSOSTASY: WOODEN BLOCK BUOYANCY
FROM 2:20-2:50 THE END THANKS 4 WATCHING FAULT-BLOCK MOUNTAINS
COLLISIONAL MOUNTAIN RANGES
VERTICAL MOVEMENT OF THE CRUST
Full transcript