PPT-Chapter 8 - Plate Tectonics

httpsosnoaagovdatasetsLandpaleohtml Animations On the move Plate Tectonics the rocky history of an idea Ever notice that the shore lines of South America and Africa seem to fit together. And 57375en 57375ere Were None meets the standard for Range of Reading and Level of Text Complexity for grade 8 Its structure pacing and universal appeal make it an appropriate reading choice for reluctant readers 57375e book also o57373ers students The word tectonics derives from the Greek tektonikos, meaning "pertaining to construction." Imagine the Earth as a hardboiled egg…………………….. The thin brittle shell is the crust that humans live on.. The thick jelly like white is the deep hot magma beneath the surface.. The yellow yolk is the core of the earth.. Earth habitable. ? . Earth is the only planet in the Solar System with plate tectonics. The outer crust of the Earth is broken up into regions known as tectonic plates. These are floating on top of the magma interior of the Earth and can move against one another. When two plates collide, one plate can go underneath another.. as a random outcome of . time-dependent convection. Teresa Wong. Slava. . Solomatov. Theory of Earth II. AGU . Fall Meeting . 19 December . 2014. 1. Major questions on initiation of plate tectonics. Chapter 12.2 BC Science 10. A Cross-Section of Earth. The Layers of Earth. Earth is over 1200 km thick and has four distinct layers:. Crust. – outer solid rock layer (granite on land, basalt in oceans). One moves oil, while the other builds mountains. Which can do more work?. Supertanker . Tectonic Plate . Mass - 2 x 10. 8. kg. Velocity - 8 m/s. Mass - 3 x 10. 20. kg. Velocity - 1 x 10. -9. m/s. Zachary Gallegos. University of New Mexico / Mars One. Mars Orbiter Laser Altimeter Map. Plate Tectonics. Lithospheric plates sliding on the asthenosphere, above the mantle. Exists on Earth. Theory proposed in the early 1900’s. Volcanism is mostly focused at plate margins. Pacific Ring of Fire. This map shows the margins of the Pacific tectonic plate and surrounding region. The red dots show the location of active volcanism. Notice how the majority of the volcanism is focused in lines along the plate boundaries? For this region is the area known as the “Pacific Ring of Fire”.. Composition of the Earth: . Layers of the Earth: . Crust: . 5-100km thick. . Oceanic crust: thin and more dense, mostly basalt . Continental crust: thicker and less dense, made up of more granite than oceanic crust . Volcanism is mostly focused at plate margins. Pacific Ring of Fire. This map shows the margins of the Pacific tectonic plate and surrounding region. The red dots show the location of active volcanism. Notice how the majority of the volcanism is focused in lines along the plate boundaries? For this region is the area known as the “Pacific Ring of Fire”.. Plate Tectonics. Became a theory in the 1960’s. Describes plate movements AND explains why they move. Plate Tectonics. Two types of crust: Oceanic and Continental. Plates are usually made of both. Richard Palin, University of Oxford, UK;. M. Santosh, China University of Geosciences, Beijing (CUGB). University of Adelaide, Australia. Ortelius World Map . Typvs. Orbis . Terrarvm. , 1570.. Culmination of centuries of research. p. otential hotspot. p. otential hotspot. Based on illustration by . Lidunka. . Vočadlo. , University College London. We propose this scenario: . Layered Mantle Convection. Location of the boundary can be adjusted to suit different needs..