earthquake - SPS186.org
... 8.2 Measuring Earthquakes Earthquake Waves Body Waves • Identified as P waves or S waves • P waves - Are push-pull waves that push (compress) and pull (expand) in the direction that the waves travel - Travel through solids, liquids, and gases - Have the greatest velocity of all earthquake waves ...
... 8.2 Measuring Earthquakes Earthquake Waves Body Waves • Identified as P waves or S waves • P waves - Are push-pull waves that push (compress) and pull (expand) in the direction that the waves travel - Travel through solids, liquids, and gases - Have the greatest velocity of all earthquake waves ...
Midterm Exam
... Because they float on the oceans Because they float on Earth’s liquid mantle Because of “trench-pull” and “ridge-push forces” ...
... Because they float on the oceans Because they float on Earth’s liquid mantle Because of “trench-pull” and “ridge-push forces” ...
Plate Worksheet - Scarsdale Schools
... 1. Rift boundaries occur where two plates are pulling apart as new crust is created. The mid-ocean ridge$ and continental rift valleys, like the Dead Sea valley in the holy land, and the Great Rift Valley of Africa, are examples of rift zones.The island nation of Iceland is now being pulled apart by ...
... 1. Rift boundaries occur where two plates are pulling apart as new crust is created. The mid-ocean ridge$ and continental rift valleys, like the Dead Sea valley in the holy land, and the Great Rift Valley of Africa, are examples of rift zones.The island nation of Iceland is now being pulled apart by ...
Ocean - cloudfront.net
... Wegener states that Earth’s continents were once joined to form a single supercontinent. Wegener called the supercontinent Pangaea and hypothesized that it began breaking apart around 200 mya during the Mesozoic Era. Wegener and others who advocated the continental drift hypothesis had substantial e ...
... Wegener states that Earth’s continents were once joined to form a single supercontinent. Wegener called the supercontinent Pangaea and hypothesized that it began breaking apart around 200 mya during the Mesozoic Era. Wegener and others who advocated the continental drift hypothesis had substantial e ...
Word
... C. the epicenter D. the opposite side of the earth to the earthquake E. no such region exists 23. In the P-wave shadow zone: A. most seismic waves from earthquakes never get recorded by seismometers B. S-waves predominate C. earthquakes are impossible D. the days are darker than usual E. geophysicis ...
... C. the epicenter D. the opposite side of the earth to the earthquake E. no such region exists 23. In the P-wave shadow zone: A. most seismic waves from earthquakes never get recorded by seismometers B. S-waves predominate C. earthquakes are impossible D. the days are darker than usual E. geophysicis ...
Seafloor Spreading Lab with Makeup
... Elsewhere, one plate slides under another, or subducts, and deep ocean trenches are formed. Rock on the subducting plate becomes part of the asthenosphere. Oceanic crust is denser and thinner than continental crust, so all seafloor rock is eventually destroyed in this way. Thus, the oldest seafloor ...
... Elsewhere, one plate slides under another, or subducts, and deep ocean trenches are formed. Rock on the subducting plate becomes part of the asthenosphere. Oceanic crust is denser and thinner than continental crust, so all seafloor rock is eventually destroyed in this way. Thus, the oldest seafloor ...
Dynamic Earth Assessment Test Results
... www.learner.org/interactives/assessment/testskills_print.html ...
... www.learner.org/interactives/assessment/testskills_print.html ...
Wiring a Plug
... The live wire is connected to the high voltage. The switch and the fuse are used to disconnect the appliance from the high voltage when it’s not in use or if a fault occurs. Therefore both the switch and the fuse must be connected in the live wire (brown) between the high voltage and the appliance. ...
... The live wire is connected to the high voltage. The switch and the fuse are used to disconnect the appliance from the high voltage when it’s not in use or if a fault occurs. Therefore both the switch and the fuse must be connected in the live wire (brown) between the high voltage and the appliance. ...
Chapter 18- Volcanic Activity
... Earth’s surface as a result of uplift and erosion are classified based on their size, shape and relationship to surrounding rocks. ...
... Earth’s surface as a result of uplift and erosion are classified based on their size, shape and relationship to surrounding rocks. ...
Chapter 18- Volcanic Activity
... Earth’s surface as a result of uplift and erosion are classified based on their size, shape and relationship to surrounding rocks. ...
... Earth’s surface as a result of uplift and erosion are classified based on their size, shape and relationship to surrounding rocks. ...
EARTH`S INTERIOR 23. The average density of the Earth is 5.5 g/cm3
... C. the epicenter D. the opposite side of the earth to the earthquake E. no such region exists 23. In the P-wave shadow zone: A. most seismic waves from earthquakes never get recorded by seismometers B. S-waves predominate C. earthquakes are impossible D. the days are darker than usual E. geophysicis ...
... C. the epicenter D. the opposite side of the earth to the earthquake E. no such region exists 23. In the P-wave shadow zone: A. most seismic waves from earthquakes never get recorded by seismometers B. S-waves predominate C. earthquakes are impossible D. the days are darker than usual E. geophysicis ...
Chapter 18 – The Ocean Floor Outline (NOTE NEW CHAPTER TITLE)
... b. Twenty-three percent of Earth’s surface c. Winds through all major oceans 3. Along the axis of some segments are deep downfaulted structures called rift valleys 4. Consist of layer upon layer of basaltic rocks that have been faulted and uplifted 5. Mid-Atlantic Ridge has been studied more thoroug ...
... b. Twenty-three percent of Earth’s surface c. Winds through all major oceans 3. Along the axis of some segments are deep downfaulted structures called rift valleys 4. Consist of layer upon layer of basaltic rocks that have been faulted and uplifted 5. Mid-Atlantic Ridge has been studied more thoroug ...
Volcanoes and Igneous Activity Earth
... • Geomagnetic reversals are recorded in the ocean crust • In 1963 Fred Vine and D. Matthews tied the discovery of magnetic stripes in the ocean crust near ridges to Hess’s concept of seafloor ...
... • Geomagnetic reversals are recorded in the ocean crust • In 1963 Fred Vine and D. Matthews tied the discovery of magnetic stripes in the ocean crust near ridges to Hess’s concept of seafloor ...
Mesozoic Plate Tectonics
... Why would a supercontinent break up? Remember that Earth’s interior is hot. Heat builds up beneath the supercontinent. This causes the continent to buoy upward. Continental rifting begins. Basalt lava fills in the rift. This could lead to seafloor spreading and the formation of a new ocean basin. Th ...
... Why would a supercontinent break up? Remember that Earth’s interior is hot. Heat builds up beneath the supercontinent. This causes the continent to buoy upward. Continental rifting begins. Basalt lava fills in the rift. This could lead to seafloor spreading and the formation of a new ocean basin. Th ...
Caribbean plate animation:
... Earth Model Assignment Directions: Make a cut away, 3-D, scale model showing the earth’s interior structure. Make you model to scale (eg., the crust is thin, some of the other layers are thick….). Section 6.2 in your text will help, as will the handouts, notes and discussion from class. See details ...
... Earth Model Assignment Directions: Make a cut away, 3-D, scale model showing the earth’s interior structure. Make you model to scale (eg., the crust is thin, some of the other layers are thick….). Section 6.2 in your text will help, as will the handouts, notes and discussion from class. See details ...
Chapter 2
... Faced with puzzling data, scientist developed hypotheses to explain them. Alfred Wegener proposed the most comprehensive early hypothesis for “Continental Drift” in 1912. ...
... Faced with puzzling data, scientist developed hypotheses to explain them. Alfred Wegener proposed the most comprehensive early hypothesis for “Continental Drift” in 1912. ...
See Figure 2 by Brasier et al. Nature, Vol. 416 (2002): 76-81.
... •BIFs formed early in Earth’s history, supposedly by chemical precipitation and settling out of particles from seawater. •Critical indicators of early life b/c they establish existence of liquid hydrosphere in a habitable T range. ...
... •BIFs formed early in Earth’s history, supposedly by chemical precipitation and settling out of particles from seawater. •Critical indicators of early life b/c they establish existence of liquid hydrosphere in a habitable T range. ...
Three early arguments for deep time— part 3
... Of the three primary original arguments advanced for deep time in the 18th century, only one—the time needed to form the sedimentary rock record—is still advanced, even though it is a weaker argument than most think. It initially focused on the volume of the ‘Secondary’ sedimentary rocks, but grew t ...
... Of the three primary original arguments advanced for deep time in the 18th century, only one—the time needed to form the sedimentary rock record—is still advanced, even though it is a weaker argument than most think. It initially focused on the volume of the ‘Secondary’ sedimentary rocks, but grew t ...
Deeply buried continental crust under Iceland
... Deeply buried continental crust under Iceland T.H. Torsvik, Centre for Earth Evolution and Dynamics and Dept. of Geosciences, Univ. of Oslo R.G. Trønnes, Centre for Earth Evolution and Dynamics and Natural History Museum, Univ. of Oslo http://forskning.no/blogg/forskningsetikken/deeply-buried-contin ...
... Deeply buried continental crust under Iceland T.H. Torsvik, Centre for Earth Evolution and Dynamics and Dept. of Geosciences, Univ. of Oslo R.G. Trønnes, Centre for Earth Evolution and Dynamics and Natural History Museum, Univ. of Oslo http://forskning.no/blogg/forskningsetikken/deeply-buried-contin ...
Lecture #6 Causes of Ice Ages & Glacial
... Stream and north Atlantic thermo-haline circulation ,as well as major mountain building in the northern hemisphere. How do you think these events are related? Cenozoic surface water temperature reconstruction (using planktonic foraminifera) of the Antarctic Ocean. The relative rapid adjustment of ci ...
... Stream and north Atlantic thermo-haline circulation ,as well as major mountain building in the northern hemisphere. How do you think these events are related? Cenozoic surface water temperature reconstruction (using planktonic foraminifera) of the Antarctic Ocean. The relative rapid adjustment of ci ...
Tracing rays through the Earth
... - focal depth of earthquake not zero - local velocity-depth distribution under a particular network - spherical symmetry not perfectly valid due to Earth’s ellipticity Travel times can be classified as “early” or “late” depending on whether the wave passes through a “slow” or “fast” region On global ...
... - focal depth of earthquake not zero - local velocity-depth distribution under a particular network - spherical symmetry not perfectly valid due to Earth’s ellipticity Travel times can be classified as “early” or “late” depending on whether the wave passes through a “slow” or “fast” region On global ...
1. What evidence did Alfred Wagner use to support his theory of
... 1. What evidence did Alfred Wagner use to support his theory of Continental drift? He thought that continents were an only piece of land but then they were separated. 2. Why do you think people didn't believe continental drift theory when Wagner first explained it? Because he didn’t prove why contin ...
... 1. What evidence did Alfred Wagner use to support his theory of Continental drift? He thought that continents were an only piece of land but then they were separated. 2. Why do you think people didn't believe continental drift theory when Wagner first explained it? Because he didn’t prove why contin ...
History of geology
The history of geology is concerned with the development of the natural science of geology. Geology is the scientific study of the origin, history, and structure of the Earth. Throughout the ages geology provides essential theories and data that shape how society conceptualizes the Earth.