the time of origin of an earthquake based on seismic data Materials Needed: • 3 component seismograms‚ • Travel time curve‚ • Globe or map for locating epicenter‚ • String (with globe) or compass (with map) • Map with Tectonic Plates illustrated. Jeffrey Barker‚ Binghamton University Questions or comments: barker@geol.binghamton.edu Time Management: Teacher Background: A tremendous number of earthquakes occur every year around the world. The vast majority of these
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Lithosphere. | | |03-Oct-11 |Oceanic Lithosphere: seismic structure + layers. | | | |Plate tectonic origins + Ophiolites. | | |10-Oct-11 | | | |17-Oct-11
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Austronesian Migration Theory propounds on the expansion of a group of people called the Austronesians from Asia into the Pacific by means of Taiwan 6‚000 years ago. It was a theory proposed by Peter Bellwood a professor of Archeology. The theory largely explains the similarities in culture‚ language and physical attributes in different countries in the most Asian countries. The Austronesian migrations began from the Chinese mainland‚ reaching Taiwan first in 3500 BC then the Philippines by 3000
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theory of plate tectonics began to take credence because of the modification and refinement of the concept of continental drift. Lesson 13.7 LANDFORMS AND BODIES OF WATER LANDFORMS Landforms are natural features that appear on the surface of the Earth. They are formed either by the movement of tectonic plates or the action of water or ice. The Earth’s surface is the result of both constructive processes. Destructive Processes -Weathering -Erosion Constructive Processes -Plate Tectonic processes
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tsunamis are abrupt movements on the ocean floor that can result from an earthquake. Tsunamis are most often caused when an earthquake causes the seafloor to rise or fall. Earthquakes happen when two tectonic plates collide into each other at a plate boundary. The denser plate is subducted under the other plate‚ which leads to a rise or fall of the sea floor. This movement of the seafloor will cause a rapid vertical displacement of water‚ and waves of a tsunami would form. As the wave approaches the coastline
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Fault is a place where two massive tectonic plates‚ specifically the North American and Pacific plates. The small split in the ground extends more than 800 miles and is roughly ten miles deep. The SAF is located in Northern California‚ and extends to Cajon Pass in the San Bernardino Mountains. The SAF was formed around fifteen to twenty million years ago. the fault‚ classified as a Right Lateral Strike-Slip fault‚ was formed when the North American and Pacific plates came into contact with each other
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Associate Level Material Sedimentary Rock Worksheet Use the following table to describe and distinguish between the effects of weathering and erosion. Each response must be at least 200 words. |Effects of Weathering |Effects of Erosion |What are the Differences? | |Weathering is a multifaceted contact of |Soils that are removed naturally by living |As stated before‚ weathering is based on | |biological‚ physical‚ and chemical
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System and Plate Tectonic system? Which one makes up the tectonic plates? Which zones are strong and which ones are weak or ductile? Crust (Crust is the least dense‚ makes up the tectonic plates) Continental Oceanic Mantle (Ductile) Upper Mantle Lower Mantle Core (Core is the most dense) Liquid outer core Solid inner core How old is the Earth? The earth is 4.53 billion years old What is the theory of plate tectonics? What is the driving force behind plate tectonics? Earths crust
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when volcanic islands collided in the south west of America‚ where the North American plate is now. Mountain building occurred about 75 million years ago when the uplift of almost 2 miles in the region‚ (called a Laramide orogeny event) started and created the Colorado Plateau. The rocks in the Grand Canyon were igneous or sedimentary rocks before the collision of tectonic plates. The collision pushed the plates under the earths crusts. The rocks recrystallized under high temperature and pressure
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reference; physical geology includes the study of how rocks form and of how erosion shapes the land surface | | | physical geology involves the study of rock strata‚ fossils‚ and deposition in relation to plate movements in the geologic past; historical geology charts how and where the plates were moving in the past | | | None of thesephysical geology and historical geology are essentially the same. | 2 points Question 3 1. The relatively stable interior portion of a continent
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