Student Exploration Sheet: Growing Plants
... Vocabulary: collisional boundary, convergent boundary, crust, divergent boundary, earthquake, lithosphere, mantle, plate, plate tectonics, subduction zone, transform boundary, volcano Prior Knowledge Questions (Do these BEFORE using the Gizmo.) 1. Explain how convection currents allow the tectonic p ...
... Vocabulary: collisional boundary, convergent boundary, crust, divergent boundary, earthquake, lithosphere, mantle, plate, plate tectonics, subduction zone, transform boundary, volcano Prior Knowledge Questions (Do these BEFORE using the Gizmo.) 1. Explain how convection currents allow the tectonic p ...
Plate tectonics
... Plate Tectonics - evidence for theory of continental drift by Hess, Heezen and Tharp (1960’s) found lithospheres plate boundaries that can be 3 types: ...
... Plate Tectonics - evidence for theory of continental drift by Hess, Heezen and Tharp (1960’s) found lithospheres plate boundaries that can be 3 types: ...
Seismic structures of the 154–160 Ma oceanic crust and uppermost... in the Northwest Pacific Basin
... (Received October 2, 2009; Revised February 21, 2010; Accepted February 25, 2010; Online published April 12, 2010) ...
... (Received October 2, 2009; Revised February 21, 2010; Accepted February 25, 2010; Online published April 12, 2010) ...
Spreading Continents Kick-Started Plate Tectonics Plate tectonics
... Plate tectonics characterises the present-day geodynamics of the Earth. Stresses acting on cold, ...
... Plate tectonics characterises the present-day geodynamics of the Earth. Stresses acting on cold, ...
HazardsModuleoutline 86.50KB 2017-03-29 12
... To be able to describe the physical and chemical properties of the different layers of the earth. THEORY OF PLATE TECTONICS To understand what is meant by the theory of plate tectonics. To be able to describe the characteristics of the 2 types of plates (oceanic and continental plates) involved in p ...
... To be able to describe the physical and chemical properties of the different layers of the earth. THEORY OF PLATE TECTONICS To understand what is meant by the theory of plate tectonics. To be able to describe the characteristics of the 2 types of plates (oceanic and continental plates) involved in p ...
GEOL 109 - Continuing Education
... a) The geologic time scale is a way of breaking Earth's history into segments. The beginning and ends of the segments are usually related to an important event in Earth history, such as the date of a major extinction. If we want to know were a particular rock layer fits within the geologic time scal ...
... a) The geologic time scale is a way of breaking Earth's history into segments. The beginning and ends of the segments are usually related to an important event in Earth history, such as the date of a major extinction. If we want to know were a particular rock layer fits within the geologic time scal ...
I. Evolution - This Old Earth
... 2. Be able to describe how plate tectonics affected earth’s atmosphere. What is outgassing? 3. Be able to describe the composition of Earth’s first, true, atmosphere and how it evolved to our current atmosphere 4. Be able to describe the evidence behind our understanding of Earth’s early atmosphere ...
... 2. Be able to describe how plate tectonics affected earth’s atmosphere. What is outgassing? 3. Be able to describe the composition of Earth’s first, true, atmosphere and how it evolved to our current atmosphere 4. Be able to describe the evidence behind our understanding of Earth’s early atmosphere ...
Fluid Sources – solubility sensitivity
... S levels are elevated in arc-related magmas • S isotope data shows ‘extra’ sulphur to be derived from subducted material Cl is also sourced from slab-derived fluids in arc settings • Additional (lower crustal) sources may also exist ...
... S levels are elevated in arc-related magmas • S isotope data shows ‘extra’ sulphur to be derived from subducted material Cl is also sourced from slab-derived fluids in arc settings • Additional (lower crustal) sources may also exist ...
EAST PACIFIC RISE VOLCANOES FINALLY LINE UP
... rock from which the pillars were made. They found that ground motion during the last major earthquake — thought to have been a magnitude-‐‑7.4 event that occurred within the last 550 years — probably did not exceed about one-‐‑third the acc ...
... rock from which the pillars were made. They found that ground motion during the last major earthquake — thought to have been a magnitude-‐‑7.4 event that occurred within the last 550 years — probably did not exceed about one-‐‑third the acc ...
ROCKS and how to identify them
... METAMORPHIC ROCKS METAMORPHIC ROCKS have changed (meta) their form (morphic). Under the influence of heat, pressure and fluids, preexisting rocks are modified in form and even in internal atomic structure to produce new rocks stable at the new conditions. This is done within the solid state, i.e. w ...
... METAMORPHIC ROCKS METAMORPHIC ROCKS have changed (meta) their form (morphic). Under the influence of heat, pressure and fluids, preexisting rocks are modified in form and even in internal atomic structure to produce new rocks stable at the new conditions. This is done within the solid state, i.e. w ...
Activity—World Map of Plate Boundaries
... 13. Some people have referred to the process in the above question as a cycle. Why would it be considered a cycle? (Rock is formed at the spreading ridge; gets destroyed at subduction zones. The subducted rock eventually gets absorbed into the mantle and gets caught in the very slow circulation of r ...
... 13. Some people have referred to the process in the above question as a cycle. Why would it be considered a cycle? (Rock is formed at the spreading ridge; gets destroyed at subduction zones. The subducted rock eventually gets absorbed into the mantle and gets caught in the very slow circulation of r ...
Circum-Arctic mantle structure and long
... to be used as a guide in conjunction with Figure S12. Note that shorter wavelength subsidence or uplift or changes in rates may occur ...
... to be used as a guide in conjunction with Figure S12. Note that shorter wavelength subsidence or uplift or changes in rates may occur ...
Distribution of earthquakes and volcanoes
... Two (continental) plates moving apart as a result of convection current in the Earth’s crust that determine the direction of movement. Some plates like the North American and Eurasian plates, are moving in opposite directions, away from each other. This type of movement mostly happens under the ocea ...
... Two (continental) plates moving apart as a result of convection current in the Earth’s crust that determine the direction of movement. Some plates like the North American and Eurasian plates, are moving in opposite directions, away from each other. This type of movement mostly happens under the ocea ...
seismic waves - Gordon State College
... Seismic Waves: Surface Waves • Surface waves are the slowest seismic waves and the last to register on a seismograph. • Rayleigh waves have a rolling-type of motion: — They roll over and over in a tumbling motion, similar to ocean wave movement. — Tumbling motion occurs backward compared to wave’s ...
... Seismic Waves: Surface Waves • Surface waves are the slowest seismic waves and the last to register on a seismograph. • Rayleigh waves have a rolling-type of motion: — They roll over and over in a tumbling motion, similar to ocean wave movement. — Tumbling motion occurs backward compared to wave’s ...
File - Mr. McCabe
... the lag time to be? 3. If an earthquake was 100 kilometers away and had an amplitude of 20mm, what would its estimated magnitude be? 4. If a seismogram had an S wave amplitude of 100mm and was a magnitude 5.0, estimate about how far it was away from that seismograph station. 5. An earthquake lag tim ...
... the lag time to be? 3. If an earthquake was 100 kilometers away and had an amplitude of 20mm, what would its estimated magnitude be? 4. If a seismogram had an S wave amplitude of 100mm and was a magnitude 5.0, estimate about how far it was away from that seismograph station. 5. An earthquake lag tim ...
What drives the plates
... Recent evidence has shown that the traditional view of mantle convection being the main driving force in lithospheric plate movement is probably incorrect. If it were the main driving force, then plates with the largest surface area would move fastest because they would have the largest area on whic ...
... Recent evidence has shown that the traditional view of mantle convection being the main driving force in lithospheric plate movement is probably incorrect. If it were the main driving force, then plates with the largest surface area would move fastest because they would have the largest area on whic ...
The 2.69 GA Paringa basalts: Crustal recycling into the
... REE and primitive mantle normalized diagrams they are characterised by: (1) near-flat REE patterns with a small range of LREE depletion (La/Smn 1.01-0.76); (2) no Ce nor Eu anomalies; (3) Nb/Th ratios of 8.7-12, variably greater than the primitive mantle value of 8; and (4) no negative primitive-man ...
... REE and primitive mantle normalized diagrams they are characterised by: (1) near-flat REE patterns with a small range of LREE depletion (La/Smn 1.01-0.76); (2) no Ce nor Eu anomalies; (3) Nb/Th ratios of 8.7-12, variably greater than the primitive mantle value of 8; and (4) no negative primitive-man ...
Ch._5_IGNEOUS_ROCKS
... earth’s original formation 4.6 billion years ago. Earth is still cooling. • Heat produced from the decay of radioactive elements inside the earth’s mantle and crust. (radioactive elements like. uranium and thorium release heat) • Frictional heat caused by the gravitational pull of the moon on the ea ...
... earth’s original formation 4.6 billion years ago. Earth is still cooling. • Heat produced from the decay of radioactive elements inside the earth’s mantle and crust. (radioactive elements like. uranium and thorium release heat) • Frictional heat caused by the gravitational pull of the moon on the ea ...
CHAPTER SEVEN EARTH PARTURITION AND MOON BIRTH
... and Depth of the Earth's surface (Following Jordan and Defant). Figure on the right: Frequency distribution of altitudes (Following Jordan, Wegener and Bucher). The Moon material, largely molten but beginning to cool, was reshaped hydrostatically (reinforced electrically) into a sphere. It was drawn ...
... and Depth of the Earth's surface (Following Jordan and Defant). Figure on the right: Frequency distribution of altitudes (Following Jordan, Wegener and Bucher). The Moon material, largely molten but beginning to cool, was reshaped hydrostatically (reinforced electrically) into a sphere. It was drawn ...
Plate Tectonics - Sunset Ridge Middle School Earth Science
... • There are convection currents in mantle. • Heat from the core drives these convection currents. • These currents drag the plates above them. ...
... • There are convection currents in mantle. • Heat from the core drives these convection currents. • These currents drag the plates above them. ...
Graham Cracker Plate Tectonics Lab
... Just a little info… The Theory of Plate Tectonics states that the crust of the Earth is composed of seven major plates and numerous smaller plates. These plates “ride” on the hot plastic upper mantle called the asthenosphere. This theory also says that most of these plates are in motion, creating a ...
... Just a little info… The Theory of Plate Tectonics states that the crust of the Earth is composed of seven major plates and numerous smaller plates. These plates “ride” on the hot plastic upper mantle called the asthenosphere. This theory also says that most of these plates are in motion, creating a ...
EGU 2005 NJK abstract
... ˜1). For volcanic margins (where initially Vz/Vx is large due to buoyancy assisted flow) the predicted ocean-continent transition is sharper with little or no exhumation of continental lithospheric mantle. Depth-dependent stretching of continental margin lithosphere is predicted to occur before cont ...
... ˜1). For volcanic margins (where initially Vz/Vx is large due to buoyancy assisted flow) the predicted ocean-continent transition is sharper with little or no exhumation of continental lithospheric mantle. Depth-dependent stretching of continental margin lithosphere is predicted to occur before cont ...
PLATE TECTONICS
... Oldest age of any ocean floor dates only to approximately 180 million years ago Moving from mid-ocean ridges on sea floor, the magnetism of specific rocks making up the deep ocean floor, indicate reversals of normal magnetism (i.e, north and south magnetic poles ‘flip’ positions) ...
... Oldest age of any ocean floor dates only to approximately 180 million years ago Moving from mid-ocean ridges on sea floor, the magnetism of specific rocks making up the deep ocean floor, indicate reversals of normal magnetism (i.e, north and south magnetic poles ‘flip’ positions) ...
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.