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Lecture 2: Dynamic Earth: Plate Tectonics
Lecture 2: Dynamic Earth: Plate Tectonics

... Seafloor spreading. Molten material of the mantle rises at mid-ocean ridges and spreads laterally; and the deep-ocean trenches are the sites where the ocean crust is drawn back to the mantle. ...
Plate Tectonics
Plate Tectonics

...  Believed continents were once all combined into one landmass he called Pangaea meaning “All Earth”  Continents seemed to fit together like a jigsaw puzzle  Explained why fossils of the same plants and animals are found on the coast of Africa and South America ...
Earth Cores Script: Inner core The inner core is the
Earth Cores Script: Inner core The inner core is the

... between 7miles (10 km) and 190 miles (300 km) beneath the Earth’s crust. The upper mantle is made of liquid rock, while the lower mantle is more solid, due to the greater pressure. The liquid material, of the upper mantle, continuously rises and falls, due to the heat that is radiated from the Earth ...
Practice Questions: Earth`s Interior
Practice Questions: Earth`s Interior

... 14. Base your answer to the following question on cross section below, which shows an underwater mountain range in the Atlantic Ocean. The oceanic bedrock is composed mainly of basalt. Points X and Y are locations in the bedrock that have been diverging at the same rate. The movement of the North A ...
Notes: Plate Tectonics
Notes: Plate Tectonics

... ex: deep sea trench, volcanic island chain 3.) two continental plates collide ex: mountains, earthquakes common c. Transform Fault Boundary two plates slide past each other; they can move in opposite directions or in the same direction ...
Aboriginal people: people who have been living in a land
Aboriginal people: people who have been living in a land

... by a law-making body, such as Parliament ...
Homework01h - Kean University
Homework01h - Kean University

... 1. Why is the interior of the Earth hotter than the surface? 2. What happens to the volume and density of any substance when it is heated? 3. If a low density ("light") substance is surrounded by high density ("heavy") materials, which moves to the lower level? 4. What happens to the volume and dens ...
Plate Tectonics
Plate Tectonics

... -its broken into more than a dozen great slabs called plates that rest- or actually float- on a partially melted layer in the upper mantle ...
The Seven Earths DOC
The Seven Earths DOC

... “Whoever takes a piece of land of others unjustly, he will sink down the seven earths on the Day of Resurrection.” (Saheeh Al-Bukhari, ‘Book of Oppression.’) The aforementioned hadith prohibits oppression in general, especially the taking of a piece of land belonging to others unjustly. What might t ...
Chapter 1: Meet Planet Earth
Chapter 1: Meet Planet Earth

... the new observations).  Formulate a theory (a generalization about natural phenomena).  Formulate a law or principle (statements that some natural phenomenon is invariably observed to happen in the same way, and no deviations have ever been observed).  Continually reexamine the law or principle i ...
The Seven Earths PDF
The Seven Earths PDF

... “Whoever takes a piece of land of others unjustly, he will sink down the seven earths on the Day of Resurrection.” (Saheeh Al-Bukhari, ‘Book of Oppression.’) The aforementioned hadith prohibits oppression in general, especially the taking of a piece of land belonging to others unjustly. What might t ...
Earth - WordPress.com
Earth - WordPress.com

... Earth was flat. They believed if they sailed a boat far out into the ocean, the boat would fall off the Earth! Now people know that this is not true. We know the Earth is not flat. It is shaped like a ball. The Earth only looks flat to us because it is so large. We can only see a small part of the E ...
Chapter12 EarthsInterior
Chapter12 EarthsInterior

... Asthenosphere where the rocks are in plastic state. ...
PRESENTSS
PRESENTSS

... energy of these particles colliding produced some heat. Second- As the material built up, the compression of the interior by gravity increased heat. Third- radioactive decay of some natural elements also added heat just as it does today (see igneous rocks). This heat may have even been great enough ...
Homework #6 Chapter 5: Earth and Moon Due
Homework #6 Chapter 5: Earth and Moon Due

... Certain types of seismic waves, S-waves, cannot travel through liquid rock. Another type, P-waves, can travel through liquid but are refracted. The “shadow zones” for both types of waves, or areas on Earth’s surface where the different waves cannot be detected after an earthquake, indicate that part ...
9_Origin_earth
9_Origin_earth

... Ideas for Projects • Big Bang/ creation of Universe. • Supernovae, neutron stars, and or black holes. • Impacts of comets and asteroids. – Death of dinosaurs (See for example, “T.Rex and the crater of doom” by L. Alvarez). – Impact of Shoemaker Levy 9 with Jupiter (See for ...
Chapter 6 Study Guide
Chapter 6 Study Guide

... 1. The rock most commonly found on oceanic crust is 2. The rock most commonly found on continental crust is 3. Which layer of the earth is partially made of magma? 4. Which physical layer of the earth is made up of tectonic plates? 5. Another name for crust is 6. What appears to cause the Earth’s pl ...
Geodesy, Map Projections and Coordinate Systems GIS in Water
Geodesy, Map Projections and Coordinate Systems GIS in Water

... Elevation along the coast is defined using tidal heights, which are elevations measured using water surface elevation gages in coastal waters relative to a statistical average tidal level calculated through time. The best known reference tidal height is mean sea level, and land surface elevations ar ...
Geography 12
Geography 12

... ____MAGMA____ is molten rock under the earth’s crust, from which igneous rocks are formed. __LAVA__________ is molten rock that reaches the earth’s surface from volcanic activity. _IGNEOUS_________ rock formed from the solidification (cooling) of magma below and above the earth’s surface. This type ...
Deadly quakes help renew the planet
Deadly quakes help renew the planet

... an essential characteristic of the Earth. As far as we know, it doesn't occur on any other planetary body and has something very directly to do with the fact that the Earth is a habitable planet." Many biologists believe that eons ago, the process may have even given birth to life itself. ...
8.4 Earth`s Layers
8.4 Earth`s Layers

... Lithosphere – Earth’s outermost layer that consists of the crust and uppermost mantle. It forms a relatively cool, rigid shell Asthenosphere – located below the lithosphere. Relatively soft, and weaker layer. Warmer than the lithosphere ...
Chapter 1 - HCC Learning Web
Chapter 1 - HCC Learning Web

... Testing (challenging) and experimentation to eliminate hypotheses or revise them Scientific theory – a coherent set of hypotheses that explains some aspect of nature Scientific model – based on many hypotheses and theories ...
Plate Tectonics Picture Study Guide File
Plate Tectonics Picture Study Guide File

... List evidence of Continental Drift: Fossils: Same kind found in two different locations. ...
Due: Tuesday February 1
Due: Tuesday February 1

... 9. Fill in the chart about the types of boundaries and stress Type of Boundary ...
Inside Earth WebQuest
Inside Earth WebQuest

... would find that it contains three main layers; the crust, mantle and core. To learn more about the layers of Earth, click the following links and answer the questions that follow. Go to: http://www.kidsgeo.com/geology-for-kids/0020-crust-mantel-core.php How is Earth's interior like an apple? ...
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Spherical Earth



The concept of a spherical Earth dates back to around the 6th century BC, when it was mentioned in ancient Greek philosophy, but remained a matter of philosophical speculation until the 3rd century BC, when Hellenistic astronomy established the spherical shape of the earth as a physical given. The paradigm was gradually adopted throughout the Old World during Late Antiquity and the Middle Ages. A practical demonstration of Earth's sphericity was achieved by Ferdinand Magellan and Juan Sebastián Elcano's expedition's circumnavigation (1519−1522).The concept of a spherical Earth displaced earlier beliefs in a flat Earth: In early Mesopotamian mythology, the world was portrayed as a flat disk floating in the ocean and surrounded by a spherical sky, and this forms the premise for early world maps like those of Anaximander and Hecataeus of Miletus. Other speculations on the shape of Earth include a seven-layered ziggurat or cosmic mountain, alluded to in the Avesta and ancient Persian writings (see seven climes).The realization that the figure of the Earth is more accurately described as an ellipsoid dates to the 18th century (Maupertuis).In the early 19th century, the flattening of the earth ellipsoid was determined to be of the order of 1/300 (Delambre, Everest). The modern value as determined by the US DoD World Geodetic System since the 1960s is close to 1/298.25.
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