Where Are We Going?
... Drifting??? Wegener believed that these plates were once part of one giant supercontinent, Pangaea, which broke apart and allowed the continents to “drift.” Since then it has been determined that the continents are not just “drifting” but rather moving apart due to plate tectonics. Wegener’s theory ...
... Drifting??? Wegener believed that these plates were once part of one giant supercontinent, Pangaea, which broke apart and allowed the continents to “drift.” Since then it has been determined that the continents are not just “drifting” but rather moving apart due to plate tectonics. Wegener’s theory ...
ASTR1010_HW07
... By observing that s-waves are shadowed by a core region, we deduce that the outer part of that core region must be liquid (since p-waves can’t pass through liquid). ...
... By observing that s-waves are shadowed by a core region, we deduce that the outer part of that core region must be liquid (since p-waves can’t pass through liquid). ...
Earth: An Ever changing planet
... • Achaean: Earth with only bacteria like cells 3.5 to 2.5 Billion years ago (28% of Earth’s history) • Proterozoic: Multicellular life forms 2.5 BYA to 540 MYA (48% of Earth’s history) • Phanerozoic: Dinosaurs to now • 540 MYA – present day (11% of Earth’s history) ...
... • Achaean: Earth with only bacteria like cells 3.5 to 2.5 Billion years ago (28% of Earth’s history) • Proterozoic: Multicellular life forms 2.5 BYA to 540 MYA (48% of Earth’s history) • Phanerozoic: Dinosaurs to now • 540 MYA – present day (11% of Earth’s history) ...
Plate Tectonics
... Molten Density of pure iron or nickel/iron; ~2x density of mantle Convection … Earth’s magnetic field ...
... Molten Density of pure iron or nickel/iron; ~2x density of mantle Convection … Earth’s magnetic field ...
HERE
... • Can travel through the entire Earth. Through liquids (outer core) and solids (inner core). • The type of wave is called compression. It compresses (squeezes) the matter it’s moving through. (*** your chem teacher might call it longitudinal) • Click HERE for P-waves animation ...
... • Can travel through the entire Earth. Through liquids (outer core) and solids (inner core). • The type of wave is called compression. It compresses (squeezes) the matter it’s moving through. (*** your chem teacher might call it longitudinal) • Click HERE for P-waves animation ...
Science Chapter Two Landforms and Constructive/Destructive
... Ocean waves change and wear down cliffs Ocean waves change beaches Rain that freezes in small cracks can expand and break down rock Flowing water makes rocks tumble together, which smoothes their edges ...
... Ocean waves change and wear down cliffs Ocean waves change beaches Rain that freezes in small cracks can expand and break down rock Flowing water makes rocks tumble together, which smoothes their edges ...
Chap 01 Earth Structure
... Average density of Earth = 5.5 g / cm3 Density of crust: continents = 2.7 g / cm3 ocean floor = 3.3 g / cm3 this difference reflects mostly a change in composition, some effect from pressure What does it imply that oceanic and continental crust are MUCH lower density than the average? ...
... Average density of Earth = 5.5 g / cm3 Density of crust: continents = 2.7 g / cm3 ocean floor = 3.3 g / cm3 this difference reflects mostly a change in composition, some effect from pressure What does it imply that oceanic and continental crust are MUCH lower density than the average? ...
Section 1
... d. Drop down; take cover under a desk or table and hold on. Stay indoors until the shaking stops and you're sure it's safe to exit. Stay away from bookcases or furniture that can fall on you. Stay away from windows. In a high-rise building, expect the fire alarms and sprinklers to go off during a qu ...
... d. Drop down; take cover under a desk or table and hold on. Stay indoors until the shaking stops and you're sure it's safe to exit. Stay away from bookcases or furniture that can fall on you. Stay away from windows. In a high-rise building, expect the fire alarms and sprinklers to go off during a qu ...
Fourth lecture - 16 September, 2015
... The leading physicists of his day, however, were able to show that this was physically not possible. The proposed mechanism was thus discredited, so the entire hypothesis was set aside (by most!) as yet more wishful thinking. ...
... The leading physicists of his day, however, were able to show that this was physically not possible. The proposed mechanism was thus discredited, so the entire hypothesis was set aside (by most!) as yet more wishful thinking. ...
report - University of Dayton
... 7. Locate convergent, divergent, and transverse boundaries on Earth map. 8. Draw arrows showing the direction the major plates are moving based on the corresponding plate boundaries. 9. Quiz on plates, plate boundaries, surface features, and relative plate movement. 10. Reading assignment on Earth’s ...
... 7. Locate convergent, divergent, and transverse boundaries on Earth map. 8. Draw arrows showing the direction the major plates are moving based on the corresponding plate boundaries. 9. Quiz on plates, plate boundaries, surface features, and relative plate movement. 10. Reading assignment on Earth’s ...
Bundle 1 - Humble ISD
... Volcanoes are randomly located across the earth’s surface. Fact: The majority of volcanoes are located along tectonic plate boundaries. “Ring of Fire” is the name given to an area along the border of the Pacific Plate with a high concentration of volcanoes. Earthquakes happen randomly across the ...
... Volcanoes are randomly located across the earth’s surface. Fact: The majority of volcanoes are located along tectonic plate boundaries. “Ring of Fire” is the name given to an area along the border of the Pacific Plate with a high concentration of volcanoes. Earthquakes happen randomly across the ...
Describe the composition and structure of Earth.
... Chapter 3 Section 1 A Objective: Describe the structure and composition of Earth. SWBAT: Apply knowledge of the composition and structure of Earth’s layers. ...
... Chapter 3 Section 1 A Objective: Describe the structure and composition of Earth. SWBAT: Apply knowledge of the composition and structure of Earth’s layers. ...
Earth & Layers
... • Since we live on this layer, we would know more about it than the others. • Oxygen and silicon are two of the most abundant elements found in the Earth’s crust. ...
... • Since we live on this layer, we would know more about it than the others. • Oxygen and silicon are two of the most abundant elements found in the Earth’s crust. ...
Lecture Notes – Chapter 9
... Wegener’s theory ____________ the mid-_______’s, when structures on the ________________________ of a mechanism for the _________ of continents. Convection Current: Movement of ______________ (a fluid) caused by changes in ___________________ or temperature. Draw a convection current Earth’s Major ...
... Wegener’s theory ____________ the mid-_______’s, when structures on the ________________________ of a mechanism for the _________ of continents. Convection Current: Movement of ______________ (a fluid) caused by changes in ___________________ or temperature. Draw a convection current Earth’s Major ...
Mountains - SharpSchool
... • During an earthquake vibrations travel through the crust. The farther away people are from the earthquake, the harder it is for them to feel the vibrations. • The vibrations that move through the Earth’s layers are called seismic waves. • These vibrations are measured on a machine called a seismog ...
... • During an earthquake vibrations travel through the crust. The farther away people are from the earthquake, the harder it is for them to feel the vibrations. • The vibrations that move through the Earth’s layers are called seismic waves. • These vibrations are measured on a machine called a seismog ...
Internal Structure of the Earth
... which it travels. Velocities can vary sharply (easy to detect, usually at a compositional interface) or gradually (hard to detect, often due to phase changes or a gradual changes in composition). –Gravity: by using very sensitive measuring scales, geophysicists measure the strength of gravity, usual ...
... which it travels. Velocities can vary sharply (easy to detect, usually at a compositional interface) or gradually (hard to detect, often due to phase changes or a gradual changes in composition). –Gravity: by using very sensitive measuring scales, geophysicists measure the strength of gravity, usual ...
Name:______ Period________ Date: Earth`s Crust WebQuest
... 2. In what direction does the inner core rotate and at what rate of speed? What is the temperate of the inner ...
... 2. In what direction does the inner core rotate and at what rate of speed? What is the temperate of the inner ...
GEOSPHERE The geosphere is the Earth itself, the rocks, minerals
... The geosphere is the Earth itself, the rocks, minerals, and landforms of the surface as well as its interior. Below the crust, which varies from about 5 km beneath the ocean floor to up to 70 km below the land surface, temperatures are high enough for deformation and a paste-like flow. At one time, ...
... The geosphere is the Earth itself, the rocks, minerals, and landforms of the surface as well as its interior. Below the crust, which varies from about 5 km beneath the ocean floor to up to 70 km below the land surface, temperatures are high enough for deformation and a paste-like flow. At one time, ...
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.