PSRD: Tungsten Isotopes, Formation of the Moon, and Lopsided
... Another interesting complication is that as lunar rocks are exposed to cosmic rays on or near (within a meter of) the surface, a fraction of the small amounts of tantalum-181 ( 181 Ta) in them is converted to 182 W. This secondary process messes up the primary lunar tungsten isotopic composition. To ...
... Another interesting complication is that as lunar rocks are exposed to cosmic rays on or near (within a meter of) the surface, a fraction of the small amounts of tantalum-181 ( 181 Ta) in them is converted to 182 W. This secondary process messes up the primary lunar tungsten isotopic composition. To ...
Earthquakes – Chapter 6
... What are faults • A fault is a crack in the Earth's crust along which movement has occurred. • Occur at plate boundaries or within a plate • Consists of a hanging wall (HW) and a foot wall (FW) ...
... What are faults • A fault is a crack in the Earth's crust along which movement has occurred. • Occur at plate boundaries or within a plate • Consists of a hanging wall (HW) and a foot wall (FW) ...
EARTHQUAKES AND SEISMOLOGY Seismology is the study of
... The Richter magnitude scale was developed in 1935 by Charles F. Richter of the California Institute of Technology as a mathematical device to compare the size of earthquakes. The Richter scale assigns a magnitude number to quantify the energy released by an earthquake. This scale is a base-10 logari ...
... The Richter magnitude scale was developed in 1935 by Charles F. Richter of the California Institute of Technology as a mathematical device to compare the size of earthquakes. The Richter scale assigns a magnitude number to quantify the energy released by an earthquake. This scale is a base-10 logari ...
Background Knowledge – Layers of the Earth 1. List the layers of the
... 4. Describe the trends of the ocean floor age, sediment thickness, and heat flow as you move away from the center of the mid-ocean ridge. As you move away from the center of a mid-ocean ridge, the ocean floor gets older, the sediment on top of the floor gets thicker, and the heat flow decreases or g ...
... 4. Describe the trends of the ocean floor age, sediment thickness, and heat flow as you move away from the center of the mid-ocean ridge. As you move away from the center of a mid-ocean ridge, the ocean floor gets older, the sediment on top of the floor gets thicker, and the heat flow decreases or g ...
Study Questions for Quiz #2
... C) most minerals at Earth's surface are composed of silicon-oxygen tetrahedra D) a mineral species has a specific set of physical properties E) all of the above Answer: E 5) In the study of minerals, X-ray diffraction measure A) chemical composition. B) hardness. C) density. D) cleavage. E) internal ...
... C) most minerals at Earth's surface are composed of silicon-oxygen tetrahedra D) a mineral species has a specific set of physical properties E) all of the above Answer: E 5) In the study of minerals, X-ray diffraction measure A) chemical composition. B) hardness. C) density. D) cleavage. E) internal ...
Tectonic JEOPARDY!
... 1. Magma rises at the Mid-Ocean Ridge 2. Entering the ocean, magma cools into Basalt 3. New magma rises and cools, spreading the rock out 4. Old crust subducts under less dense crust and melts 5. The cycle repeats! ...
... 1. Magma rises at the Mid-Ocean Ridge 2. Entering the ocean, magma cools into Basalt 3. New magma rises and cools, spreading the rock out 4. Old crust subducts under less dense crust and melts 5. The cycle repeats! ...
Chapter 10 Resource: Forces Shaping Earth
... In contrast, hot spot volcanoes form deep within Earth, near the boundary between Earth’s core and mantle. Continuous eruptions to Earth’s surface produce layers of lava that may eventually extend above sea level. This lava is relatively thin and can spread far from the vent. Volcanic mountains form ...
... In contrast, hot spot volcanoes form deep within Earth, near the boundary between Earth’s core and mantle. Continuous eruptions to Earth’s surface produce layers of lava that may eventually extend above sea level. This lava is relatively thin and can spread far from the vent. Volcanic mountains form ...
3.3 Plates Move Apart
... Transform faults occur along divergent oceanic and continental plate boundaries Plates slide past each other building up tension until the tension is released during an earthquake ...
... Transform faults occur along divergent oceanic and continental plate boundaries Plates slide past each other building up tension until the tension is released during an earthquake ...
Why is the oldest ocean crust only ~180 Ma?
... – Subduction zones are not necessarily at margins of continents, they can be in ocean basins (e.g., Marianas ...
... – Subduction zones are not necessarily at margins of continents, they can be in ocean basins (e.g., Marianas ...
Do you understand plate boundaries?
... Why do volcanoes form at constructive plate boundaries? a. Plates are moving ..................... due to rising ..................... currents. b. Magma from the mantle rises through the ................... in the ................ to form a ................ . c. The lava cools to form ............. ...
... Why do volcanoes form at constructive plate boundaries? a. Plates are moving ..................... due to rising ..................... currents. b. Magma from the mantle rises through the ................... in the ................ to form a ................ . c. The lava cools to form ............. ...
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... The Upflow Zone Buoyancy forces cause the hot fluids to rise rapidly toward the seafloor, much as hot air causes a balloon to rise in the atmosphere. Initially, the upflow is focused along a conduit of high permeability, such as a fault surface. As it reaches shallow depths, the flow may continue t ...
... The Upflow Zone Buoyancy forces cause the hot fluids to rise rapidly toward the seafloor, much as hot air causes a balloon to rise in the atmosphere. Initially, the upflow is focused along a conduit of high permeability, such as a fault surface. As it reaches shallow depths, the flow may continue t ...
V: 0
... -What features of Earth’s crust do convergent, divergent, and transform boundaries form? -What land features formed by the movement of tectonic plates can be observed using images from space? ...
... -What features of Earth’s crust do convergent, divergent, and transform boundaries form? -What land features formed by the movement of tectonic plates can be observed using images from space? ...
Plate Tectonics, and the Wilson Cycle
... – Subduction zones are not necessarily at margins of continents, they can be in ocean basins (e.g., Marianas ...
... – Subduction zones are not necessarily at margins of continents, they can be in ocean basins (e.g., Marianas ...
Reference Frames
... For plate tectonic studies, scientists sometimes choose to use a specific plate as a fixed reference frame. Because it is surrounded by ridges and moves slowly relative to the hot spot reference frame, Africa is often used in this capacity. Alternatively, any other plate could be used. ...
... For plate tectonic studies, scientists sometimes choose to use a specific plate as a fixed reference frame. Because it is surrounded by ridges and moves slowly relative to the hot spot reference frame, Africa is often used in this capacity. Alternatively, any other plate could be used. ...
Revision Audit
... plumes of hot magma rise upward and erupt onto the sea floor (at what is called a hotspot). Palaeomagnetism The study of past changes in the Earth’s magnetic field (determined from rocks, sediment or archaeological records). Convection In the mantle convection, heat produced by decay of radioactive ...
... plumes of hot magma rise upward and erupt onto the sea floor (at what is called a hotspot). Palaeomagnetism The study of past changes in the Earth’s magnetic field (determined from rocks, sediment or archaeological records). Convection In the mantle convection, heat produced by decay of radioactive ...
Unit 3 - Dynamic Crust Review Powerpoint
... 3. Compared to the oceanic crust, the continental crust is A. Less dense and more felsic B. Less dense and more mafic C. More dense and more felsic D. More dense and more mafic ...
... 3. Compared to the oceanic crust, the continental crust is A. Less dense and more felsic B. Less dense and more mafic C. More dense and more felsic D. More dense and more mafic ...
“Plate Tectonics Simulation”.
... 9) Describe the relative motion of the plates at ALL convergent plate boundaries. ____________________ ...
... 9) Describe the relative motion of the plates at ALL convergent plate boundaries. ____________________ ...
Sample Lesson 57 - Nancy Larson® Science
... Earthquakes occur where there are large cracks in the Earth’s crust. These large cracks are called faults. Faults are found where the tectonic plates meet. Faults are also found in the middle of the plates where the solid rock is cracked. “Where do earthquakes occur?” rocks in the Earth’s crust ...
... Earthquakes occur where there are large cracks in the Earth’s crust. These large cracks are called faults. Faults are found where the tectonic plates meet. Faults are also found in the middle of the plates where the solid rock is cracked. “Where do earthquakes occur?” rocks in the Earth’s crust ...
Earth Forces Pupil Booklet
... Each point on the Richter Scale is 10 times greater than the one before. On this scale, scale 6 would be 10 times more powerful than scale 5, and scale 7 would be 10 times more powerful than scale 6. ...
... Each point on the Richter Scale is 10 times greater than the one before. On this scale, scale 6 would be 10 times more powerful than scale 5, and scale 7 would be 10 times more powerful than scale 6. ...
Mountain Belts and the Continental Crust
... Period. • The cause of this great period of deformation is a result of the platedocking of a small continental landmass called Avalonia (named after the Avalon Peninsula of Newfoundland). • The docking of Avalonia onto the margin of ancestral North America (referred to as Laurentia) resulted in the ...
... Period. • The cause of this great period of deformation is a result of the platedocking of a small continental landmass called Avalonia (named after the Avalon Peninsula of Newfoundland). • The docking of Avalonia onto the margin of ancestral North America (referred to as Laurentia) resulted in the ...
Volcano Age - Mercer Island School District
... • Convergent Boundaries: plates move towards each other Subduction zones • Transform Boundaries: plates slide past one another (Faults like San Andreas) • Hot Spots: Not usually at plate boundaries: volcanic areas, often in the middle of plates (__________ is an exception) ...
... • Convergent Boundaries: plates move towards each other Subduction zones • Transform Boundaries: plates slide past one another (Faults like San Andreas) • Hot Spots: Not usually at plate boundaries: volcanic areas, often in the middle of plates (__________ is an exception) ...
Plate Tectonics: Earthquake Epicenter
... When you get to the simulator site, select “San Francisco area” at the bottom of the page, and follow the instructions on the succeeding pages. Once you have completed this activity and understand how to use triangulation to find epicenters, you are ready to test out your skills on a real set of dat ...
... When you get to the simulator site, select “San Francisco area” at the bottom of the page, and follow the instructions on the succeeding pages. Once you have completed this activity and understand how to use triangulation to find epicenters, you are ready to test out your skills on a real set of dat ...
Chapter 8 Review Test - Bismarck Public Schools
... 10. One way to forecast earthquakes in a place is to observe their past a. strength and intensity. c. frequency and intensity. b. strength and frequency. d. magnitude. ...
... 10. One way to forecast earthquakes in a place is to observe their past a. strength and intensity. c. frequency and intensity. b. strength and frequency. d. magnitude. ...
Geology
Geology (from the Greek γῆ, gē, i.e. ""earth"" and -λoγία, -logia, i.e. ""study of, discourse"") is an earth science comprising the study of solid Earth, the rocks of which it is composed, and the processes by which they change. Geology can also refer generally to the study of the solid features of any celestial body (such as the geology of the Moon or Mars).Geology gives insight into the history of the Earth by providing the primary evidence for plate tectonics, the evolutionary history of life, and past climates. Geology is important for mineral and hydrocarbon exploration and exploitation, evaluating water resources, understanding of natural hazards, the remediation of environmental problems, and for providing insights into past climate change. Geology also plays a role in geotechnical engineering and is a major academic discipline.