Plate Techtonics

Plate Techtonics

PLATE TECHTONICS TEXT CH. 3..PG. 80 How do geologists study inside earth? Look at rock samples Can determine conditions deep in the earth by looking at rocks formed there Get rocks by drilling and blasting

Seismic waves: Waves produced by earthquakes Speed & Path of the waves are used to look at structure Earths Interior 3 layers: Crust, Mantle, Core

Vary in size, composition, temperature, and pressure Temperature increases as you go deeper Pressure (force pushing on an area) increases as you go deeper Why do you think these things increase? Crust

Outermost layer of the earth Solid rock, dry land, ocean floor Very thin5-40 km thick

Thickest crust is under mountains (up to 70 km). Thinnest under ocean floor (oceanic crust) Oceanic Crust made of basalt Continental crust mainly granite Mantle Approximately 40 km beneath the surface of

earth Solid, hot layer of rock Divided into 3 layers: Lithosphere Astenosphere Lower Mantle Lithosphere

Uppermost Mantle & lower part of the crust Rigid layer Approximately 100 km thick Asthenosphere

Hotter and more pressure Less rigidmore soft like plastic or plahdoh Bendable Thickest part of the mantle Asthenes means Weak in Latin

Lower Mantle Solid Extends to earths core Core Made mostly of iron and nickle 2 parts: Liquid outer & Solid Inner

3,486 km thick Tons of pressure hereinner core has so much pressure, it has to stay solid Creates magnetic field of the earth---Acts as a bar magnet Heat Transfer in the Mantle Section 2pg. 88

Radiation Heat transfer through Space No direct Contact Travels in waves.no particles Examples: Sunlight, Fire Conduction

Heat transfer by direct contact (touching it) Example: Spoon in soup, Touching a hot stove Particles in the bottom get hotmove faster bump into particles further up, and so on Convection Heat transferred using current action Liquids & Gases

Heat flows From one area to antoher Happens because of differences in density and pressureheat flows from high to low Convection Currents Currents caused by the movement of particles in convection Flow of heat transfer

Stops when heat source stops Examples: Weather, Ocean Currents Earths Convection Currents Liquid in the core transfers heat through convection Mantle flows very slowly causing the rock to cycle up and down

Work: Complete pg. 91 #2b & 3c ----on your notes WB pg. 56-57

Recently Viewed Presentations

  • Lucio Fontana (Argentine-Italian, 1899-1968) creating a spatial painting.

    Lucio Fontana (Argentine-Italian, 1899-1968) creating a spatial painting.

    Whitney MAA Cover of the influential anthology of writings by Dada artists and writers edited by Abstract Expressionist Robert Motherwell, 1951 In 1951 "painter" was a synonym for "artist." (left) Italian Futurist Music event, 1913, The music of chance and...
  • Diapositiva 1

    Diapositiva 1

    A cargo de inspeccionar 144 estaciones de servicio de combustibles empresa Gasco a lo largo del país. Visitar y asesorar 51 clínicas de salud dental empresa Red Uno Salud, a lo largo del país.
  • Volumes of Revolution: Disk Method

    Volumes of Revolution: Disk Method

    The Disk Method. To find the volume of a solid of revolution with the disk method, use one of the following: example. ... The Washer Method. Use the washer method for solids of revolution with holes. ?=?????2−??2 ?? ...
  • Presentación de PowerPoint

    Presentación de PowerPoint

    Aquesta documentació cal entregar-la a la Secretaria del Club entre el 19 d'Agost i el 6 de setembre o es pot enviar al mail. [email protected] Categories Mini, Premini i pre infantil inscripció on line. www.sallebasquet.cat >> INFORMACIÓ >> Inscripcions Temporada...
  • Performance Improvement Strategy Chief Performance Improvement Officer June

    Performance Improvement Strategy Chief Performance Improvement Officer June

    Performance Improvement Strategy Chief Performance Improvement Officer June 2009 Responsibilities The Chief Performance Improvement Officer (PIO) is the principal advisor to the Under Secretary and Deputy Under Secretary for leading/facilitating the USPTO in: Implementing performance improvement strategies/tools such as adopting...
  • Education Reform Act 1988

    Education Reform Act 1988

    Education Reform Act 1988 The most important piece of education legislation since 1944 There are 6 main features A National Curriculum National Tests at 7, 11 and 14 Local Management of school budgets (LMS) Opting Out (Grant Maintained schools) City...
  • Bidding Procedures for The Procurement of Goods and ...

    Bidding Procedures for The Procurement of Goods and ...

    award of contracts for the construction and repair of national public works and improvements. ... In case of projects involving mixed procurements, the nature of the procurement, shall be determined based on the primary purpose of the contract. ... BIDDING...
  • Memory - appohigh.enschool.org

    Memory - appohigh.enschool.org

    Encoding - Effortful Processing. Semantic Encoding - its easier to remember things that have meaning . Acoustic Encoding - its easier to remember things with sound/rhyme. Visual Encoding - its easier to remember things we visualize