ppt
... As the Earth cooled the heavier, denser materials sank to the center and the lighter materials rose to the top. Because of this, the crust is made of the lightest materials (rock- basalts and granites) and the core consists of heavy metals (nickel and iron). ...
... As the Earth cooled the heavier, denser materials sank to the center and the lighter materials rose to the top. Because of this, the crust is made of the lightest materials (rock- basalts and granites) and the core consists of heavy metals (nickel and iron). ...
Introduction to Plate Tectonics California Geology 20
... scientific community but has not yet been decisively proven. Or…… ...
... scientific community but has not yet been decisively proven. Or…… ...
Foundations* - Chapter 9, 10, and 11 Exam
... 5. Earth’s rigid outer layer, consisting of the crust and uppermost mantle, is called the ____________________. 6. The theory of plate tectonics states that Earth’s rigid outer shell is divided into several individual segments called ____________________. 7. The type of plate boundary where plates m ...
... 5. Earth’s rigid outer layer, consisting of the crust and uppermost mantle, is called the ____________________. 6. The theory of plate tectonics states that Earth’s rigid outer shell is divided into several individual segments called ____________________. 7. The type of plate boundary where plates m ...
processes that shape the earth
... builds up. This energy can be stored in the Earth for years. Once the energy is released, it causes the land to shake and break up. Some faults in Earth’s surface are near the edges of plates. Scientist think earthquakes occur because of the movements of these plates. Earthquakes begin below the ...
... builds up. This energy can be stored in the Earth for years. Once the energy is released, it causes the land to shake and break up. Some faults in Earth’s surface are near the edges of plates. Scientist think earthquakes occur because of the movements of these plates. Earthquakes begin below the ...
GEO 10 Assignment on The Earth`s Internal Structure
... extends upwards almost 1200 km to the much narrower upper mantle. As you move towards the surface, the temperature of the mantle gradually cools. Until recently, the discontinuity, or boundary, that separates the lower mantle from the outer core was believed to be a smooth one. Recent seismic studie ...
... extends upwards almost 1200 km to the much narrower upper mantle. As you move towards the surface, the temperature of the mantle gradually cools. Until recently, the discontinuity, or boundary, that separates the lower mantle from the outer core was believed to be a smooth one. Recent seismic studie ...
PS review Earth
... about 1800 mi. thick. Makes up 80% of Earth’s volume. Outer mantle is solid, but inner mantle is hot and pliable. • Core- Composed mainly of iron and nickel. Inner core is solid metal, outer core is liquid metal. • Earth’s interior gets warmer with depth. Contains radioactive isotopes. ...
... about 1800 mi. thick. Makes up 80% of Earth’s volume. Outer mantle is solid, but inner mantle is hot and pliable. • Core- Composed mainly of iron and nickel. Inner core is solid metal, outer core is liquid metal. • Earth’s interior gets warmer with depth. Contains radioactive isotopes. ...
Interior Crust Hydrosphere Atmosphere Magnetosphere Tides
... The outer core is liquid; the inner core is solid, because of pressure Some volcanic lava comes from the mantle allowing us to analyze the composition of the mantle nearest to the surface (the upper mantle) ...
... The outer core is liquid; the inner core is solid, because of pressure Some volcanic lava comes from the mantle allowing us to analyze the composition of the mantle nearest to the surface (the upper mantle) ...
Study Guide: Plate tectonics TEST 2/soil Rocks/Weathering and
... 11. What is an earthquake? The shaking of the earth’s surface caused by the release of tension and stress from within the earth. 12. What is the epicenter and focus of an earthquake? Focus is the point underground where the earthquake originates, epicenter is the point at the surface of the earth di ...
... 11. What is an earthquake? The shaking of the earth’s surface caused by the release of tension and stress from within the earth. 12. What is the epicenter and focus of an earthquake? Focus is the point underground where the earthquake originates, epicenter is the point at the surface of the earth di ...
Week 27 CCA Review
... The lithosphere is a layer that contains all of the crust and a little of the upper mantle. The asthenosphere is the outer portion of the mantle and lies directly below the lithosphere. When constructing a model of the layers of Earth, state of matter, thickness, temperature, pressure, and elements ...
... The lithosphere is a layer that contains all of the crust and a little of the upper mantle. The asthenosphere is the outer portion of the mantle and lies directly below the lithosphere. When constructing a model of the layers of Earth, state of matter, thickness, temperature, pressure, and elements ...
Meteorite - Otterbein University
... • Oldest surface rocks on Earth (Greenland, Labrador) about 3.9 billion years old ...
... • Oldest surface rocks on Earth (Greenland, Labrador) about 3.9 billion years old ...
Subduction history of the Farallon plate under North America
... •Computational seismology works on improving imaging methods. Other geoscientists care mainly about the images themselves. •Hopefully, tomography results make sense in light of surface studies (geology, tectonics) and mantle convection simulations (geodynamics). •Solutions are non-unique -- but how ...
... •Computational seismology works on improving imaging methods. Other geoscientists care mainly about the images themselves. •Hopefully, tomography results make sense in light of surface studies (geology, tectonics) and mantle convection simulations (geodynamics). •Solutions are non-unique -- but how ...
EARTHQUAKES
... • Carry waves of energy from an earthquake away from the focus through Earth’s interior and across the surface Different types of seismic waves travel through the Earth’s layers at different speeds. ...
... • Carry waves of energy from an earthquake away from the focus through Earth’s interior and across the surface Different types of seismic waves travel through the Earth’s layers at different speeds. ...
Exam Study Guide
... E5.3f Explain why C-14 can be used to date a 40,000 year old tree but U-Pb cannot. E5.3g Identify a sequence of geologic events using relative-age dating principles. E3.3A Explain how plate tectonics accounts for the features and processes (sea floor spreading, mid-ocean ridges, subduction zon ...
... E5.3f Explain why C-14 can be used to date a 40,000 year old tree but U-Pb cannot. E5.3g Identify a sequence of geologic events using relative-age dating principles. E3.3A Explain how plate tectonics accounts for the features and processes (sea floor spreading, mid-ocean ridges, subduction zon ...
Continental Drift and Plate Tectonics
... magnetic field when they form. How do we measure the ‘magnetism’ of a rock? ...
... magnetic field when they form. How do we measure the ‘magnetism’ of a rock? ...
Earth`s Layers Notes Printable
... Outermost, Solid Layer 2: continental and oceanic Composed of; oxygen, silicon and aluminum Oceanic must denser (due to 2x the iron, calcium and magnesium) 30 km MANTLE Hot, slow-flowing rock Convection takes place here Cooler rock sinks, warmer rock rises Denser than crust 2,900 ...
... Outermost, Solid Layer 2: continental and oceanic Composed of; oxygen, silicon and aluminum Oceanic must denser (due to 2x the iron, calcium and magnesium) 30 km MANTLE Hot, slow-flowing rock Convection takes place here Cooler rock sinks, warmer rock rises Denser than crust 2,900 ...
The Dynamic Earth
... the air we breath. •Nearly all found in the first 30km above the Earth’s surface. ...
... the air we breath. •Nearly all found in the first 30km above the Earth’s surface. ...
Inner Structure of the Earth 3. Mantle
... were joined into one landmass called Pangaea. As time went on, the continents separated and moved to their current locations. ...
... were joined into one landmass called Pangaea. As time went on, the continents separated and moved to their current locations. ...
Impact on Climate - Effingham County Schools
... would cause higher ocean levels and global freezing would cause lower ocean levels. ...
... would cause higher ocean levels and global freezing would cause lower ocean levels. ...
Plate Tectonics
... Provides evidence of sea-floor spreading Molten rock contains tiny grains of magnetic minerals (act like compasses) ...
... Provides evidence of sea-floor spreading Molten rock contains tiny grains of magnetic minerals (act like compasses) ...
Geophysics
Geophysics /dʒiːoʊfɪzɪks/ is a subject of natural science concerned with the physical processes and physical properties of the Earth and its surrounding space environment, and the use of quantitative methods for their analysis. The term geophysics sometimes refers only to the geological applications: Earth's shape; its gravitational and magnetic fields; its internal structure and composition; its dynamics and their surface expression in plate tectonics, the generation of magmas, volcanism and rock formation. However, modern geophysics organizations use a broader definition that includes the water cycle including snow and ice; fluid dynamics of the oceans and the atmosphere; electricity and magnetism in the ionosphere and magnetosphere and solar-terrestrial relations; and analogous problems associated with the Moon and other planets.Although geophysics was only recognized as a separate discipline in the 19th century, its origins go back to ancient times. The first magnetic compasses were made from lodestones, while more modern magnetic compasses played an important role in the history of navigation. The first seismic instrument was built in 132 BC. Isaac Newton applied his theory of mechanics to the tides and the precession of the equinox; and instruments were developed to measure the Earth's shape, density and gravity field, as well as the components of the water cycle. In the 20th century, geophysical methods were developed for remote exploration of the solid Earth and the ocean, and geophysics played an essential role in the development of the theory of plate tectonics.Geophysics is applied to societal needs, such as mineral resources, mitigation of natural hazards and environmental protection. Geophysical survey data are used to analyze potential petroleum reservoirs and mineral deposits, locate groundwater, find archaeological relics, determine the thickness of glaciers and soils, and assess sites for environmental remediation.