Tsunamis and Jamaica
... The earthquake must have a magnitude of 6.5 or higher which is an indication of the large quantity of movement or slip on the causative fault that is required. In addition, the earthquake must displace the sea floor vertically, either up or down. Large destructive earthquakes result from sudden move ...
... The earthquake must have a magnitude of 6.5 or higher which is an indication of the large quantity of movement or slip on the causative fault that is required. In addition, the earthquake must displace the sea floor vertically, either up or down. Large destructive earthquakes result from sudden move ...
Comparing Two Descriptions of Earth Interior Structure Inside the
... magnesium, and calcium than the crust, is hotter and denser because temperature and pressure inside the Earth increase with depth. As a comparison, the mantle might be thought of as the white of a boiled egg. At the center of the Earth lies the core, which is nearly twice as dense as the mantle beca ...
... magnesium, and calcium than the crust, is hotter and denser because temperature and pressure inside the Earth increase with depth. As a comparison, the mantle might be thought of as the white of a boiled egg. At the center of the Earth lies the core, which is nearly twice as dense as the mantle beca ...
name period ____ date
... NAME ______________________________________ PERIOD ______ DATE _______________ INVESTIGATING THE EARTH’S CRUSTAL PLATES BY STUDYING EARTHQUAKES AND VOLCANOES. I. ...
... NAME ______________________________________ PERIOD ______ DATE _______________ INVESTIGATING THE EARTH’S CRUSTAL PLATES BY STUDYING EARTHQUAKES AND VOLCANOES. I. ...
1 Lecture 24: Convergent boundaries November 22, 2006
... understood. Old, cool oceanic crust sinks into the mantle, undergoing extension in the trench and increasing amounts of compression as it sinks past the major phase transitions at 670-700 km depth. Dewatering of sediments and surficial basalts occurs early below the overlying accretionary wedge, whi ...
... understood. Old, cool oceanic crust sinks into the mantle, undergoing extension in the trench and increasing amounts of compression as it sinks past the major phase transitions at 670-700 km depth. Dewatering of sediments and surficial basalts occurs early below the overlying accretionary wedge, whi ...
Glencoe Chapter 9
... 2. Find the distance from the seismic station and the epicenter. For 3 stations. 3. Plot the distances as radii on three circles. Where they meet is where the epicenter is located. ...
... 2. Find the distance from the seismic station and the epicenter. For 3 stations. 3. Plot the distances as radii on three circles. Where they meet is where the epicenter is located. ...
Supercycles in subduction zones
... continued movement of the plates builds up new NASA Earth Observatory stresses, which are then released by new earthquakes - and an earthquake cycle is born. In a supercycle, the initial quakes rupture only parts of a subduction zone segment, whereas the final When tectonic plates collide, they prod ...
... continued movement of the plates builds up new NASA Earth Observatory stresses, which are then released by new earthquakes - and an earthquake cycle is born. In a supercycle, the initial quakes rupture only parts of a subduction zone segment, whereas the final When tectonic plates collide, they prod ...
Tectonic jigsaw puzzles File
... The surface of the Earth is made up of large separate plates or areas that fit together rather like a huge jigsaw. The plates – which are the outermost layer of the Earth – are more rigid than the layer below. These plates ride on the hotter and more fluid layer underneath (the upper part of the man ...
... The surface of the Earth is made up of large separate plates or areas that fit together rather like a huge jigsaw. The plates – which are the outermost layer of the Earth – are more rigid than the layer below. These plates ride on the hotter and more fluid layer underneath (the upper part of the man ...
Why the Philippine Sea Plate Moves as It Does
... where they are and why they are): San Andreas fault, Anatolian fault, Semangko (sp?) ...
... where they are and why they are): San Andreas fault, Anatolian fault, Semangko (sp?) ...
Here - ScienceA2Z.com
... NSTA/FEMA, Tremor Troop - Earthquakes: A teacher’s package for K-6 grades, NSTA Publications, Washington, DC, 169 pp., 1990. (This book contains a reasonably complete curriculum for teaching earthquake and ...
... NSTA/FEMA, Tremor Troop - Earthquakes: A teacher’s package for K-6 grades, NSTA Publications, Washington, DC, 169 pp., 1990. (This book contains a reasonably complete curriculum for teaching earthquake and ...
Exam 1 Study Guide - Napa Valley College
... Know a lot about major plate boundaries – transform, divergent, and convergent. Of the convergent, know all about the oceanic-oceanic, continental-oceanic, and continental-continental types of convergent boundaries. This is important. ...
... Know a lot about major plate boundaries – transform, divergent, and convergent. Of the convergent, know all about the oceanic-oceanic, continental-oceanic, and continental-continental types of convergent boundaries. This is important. ...
Chapter 11: The Archean Eon of Precambrian Time
... BIFs - interlayered chert and iron interpretation: old ocean crust caught between colliding continents ...
... BIFs - interlayered chert and iron interpretation: old ocean crust caught between colliding continents ...
GEOL 106 Mid Term I KEY
... 7. Moving progressively away from the ridges, the ocean water depths increase systematically with seafloor age due to all but which of the following? A. B. C. D. ...
... 7. Moving progressively away from the ridges, the ocean water depths increase systematically with seafloor age due to all but which of the following? A. B. C. D. ...
지구 내부구조
... – Deep-ocean trenches – Deepest part of seafloor (can be 11,000 meters deep). • Narrow features. Often found adjacent to young mountain ranges or parallel to volcanic island arcs. ...
... – Deep-ocean trenches – Deepest part of seafloor (can be 11,000 meters deep). • Narrow features. Often found adjacent to young mountain ranges or parallel to volcanic island arcs. ...
Layers of the Earth PPT with notes for foldable
... Then you can tell me, • Can we dig to China? • Why or why not? ...
... Then you can tell me, • Can we dig to China? • Why or why not? ...
Layers of the Earth PPT with notes for foldable
... Then you can tell me, • Can we dig to China? • Why or why not? ...
... Then you can tell me, • Can we dig to China? • Why or why not? ...
ch 3 PowerPoint
... because the molecules are so far apart, nitrogen and oxygen absorb x-rays and gamma rays, the lower thermosphere is called the ionosphere, this is where the aurora borealis and australialis are. ...
... because the molecules are so far apart, nitrogen and oxygen absorb x-rays and gamma rays, the lower thermosphere is called the ionosphere, this is where the aurora borealis and australialis are. ...
The Rocky Mountain Region
... 25 million years ago is called the Crescent Terrane located in the areas of the Puget Lowlands, Olympic Peninsula and the Willapa Hills • The Crescent Terrane is believed to be a portion of ocean crust that was stranded between an extinct trench and the present day trench. Some how more buoyant rock ...
... 25 million years ago is called the Crescent Terrane located in the areas of the Puget Lowlands, Olympic Peninsula and the Willapa Hills • The Crescent Terrane is believed to be a portion of ocean crust that was stranded between an extinct trench and the present day trench. Some how more buoyant rock ...
PDF File - Tulane University
... Surface Waves - Surface waves differ from body waves in that they do not travel through the Earth, but instead travel along paths nearly parallel to the surface of the Earth. Surface waves behave like S-waves in that they cause up and down and side to side movement as they pass, but they travel slow ...
... Surface Waves - Surface waves differ from body waves in that they do not travel through the Earth, but instead travel along paths nearly parallel to the surface of the Earth. Surface waves behave like S-waves in that they cause up and down and side to side movement as they pass, but they travel slow ...
Define and discuss on Geothermal Gradients Submitted by WWW
... surface, the average geothermal gradient is about 25 degrees centigrade (77 degrees Fahrenheit) for every kilometer of depth. Some areas have much higher heat flows because of deep fault zones, rifting, magmatic intrusions, or active tectonic forces. The geothermal gradient can make conditions in de ...
... surface, the average geothermal gradient is about 25 degrees centigrade (77 degrees Fahrenheit) for every kilometer of depth. Some areas have much higher heat flows because of deep fault zones, rifting, magmatic intrusions, or active tectonic forces. The geothermal gradient can make conditions in de ...
UNIT C - apel slice
... surface looks. In dry areas and along sandy coasts, soil is dry and loose. There aren't many plants. Wind lifts particles and carries them. Wind slams sand into rocky surfaces. The wind-blown sand makes pits and grooves in rock. Wind also carries sand and deposits it in dunes, as you learned in Less ...
... surface looks. In dry areas and along sandy coasts, soil is dry and loose. There aren't many plants. Wind lifts particles and carries them. Wind slams sand into rocky surfaces. The wind-blown sand makes pits and grooves in rock. Wind also carries sand and deposits it in dunes, as you learned in Less ...
Plate Tectonics
... • Plate tectonics – theory that pieces of Earth’s lithosphere are in constant motion, driven by convection currents in the mantle. – As the plates move, they collide, pull apart, or grind past each other, producing spectacular changes in Earth’s surface. – Changes include volcanoes, mountain ranges, ...
... • Plate tectonics – theory that pieces of Earth’s lithosphere are in constant motion, driven by convection currents in the mantle. – As the plates move, they collide, pull apart, or grind past each other, producing spectacular changes in Earth’s surface. – Changes include volcanoes, mountain ranges, ...
Crust and Upper Mantle Structure in Northeast of Tibet from
... Continental rifting and the subsequent development of new oceanic crust involve the complex interaction of tectonic, magmatic and geodynamic processes that results in a variety of passive margin styles. Based upon the amount of volcanism that occurs, passive margins may be classified as volcanic or ...
... Continental rifting and the subsequent development of new oceanic crust involve the complex interaction of tectonic, magmatic and geodynamic processes that results in a variety of passive margin styles. Based upon the amount of volcanism that occurs, passive margins may be classified as volcanic or ...
Earth`s Layers
... The layer of rock that forms Earth’s outer skin is call the Earth’s crust. The crust is a layer of solid rock that included both dry land, continental crust, and the ocean floor, oceanic crust. The continental crust is mainly composed of granite while the oceanic crust has basalt. The main elements ...
... The layer of rock that forms Earth’s outer skin is call the Earth’s crust. The crust is a layer of solid rock that included both dry land, continental crust, and the ocean floor, oceanic crust. The continental crust is mainly composed of granite while the oceanic crust has basalt. The main elements ...
The Layer`s Of The Earth!
... wave can move through solid rock and fluids, like water or the liquid layers of the earth. It pushes and pulls the rock it moves through just like sound waves push and pull the air. ...
... wave can move through solid rock and fluids, like water or the liquid layers of the earth. It pushes and pulls the rock it moves through just like sound waves push and pull the air. ...
Plate tectonics
Plate tectonics (from the Late Latin tectonicus, from the Greek: τεκτονικός ""pertaining to building"") is a scientific theory that describes the large-scale motion of Earth's lithosphere. This theoretical model builds on the concept of continental drift which was developed during the first few decades of the 20th century. The geoscientific community accepted the theory after the concepts of seafloor spreading were later developed in the late 1950s and early 1960s.The lithosphere, which is the rigid outermost shell of a planet (on Earth, the crust and upper mantle), is broken up into tectonic plates. On Earth, there are seven or eight major plates (depending on how they are defined) and many minor plates. Where plates meet, their relative motion determines the type of boundary; convergent, divergent, or transform. Earthquakes, volcanic activity, mountain-building, and oceanic trench formation occur along these plate boundaries. The lateral relative movement of the plates typically varies from zero to 100 mm annually.Tectonic plates are composed of oceanic lithosphere and thicker continental lithosphere, each topped by its own kind of crust. Along convergent boundaries, subduction carries plates into the mantle; the material lost is roughly balanced by the formation of new (oceanic) crust along divergent margins by seafloor spreading. In this way, the total surface of the globe remains the same. This prediction of plate tectonics is also referred to as the conveyor belt principle. Earlier theories (that still have some supporters) propose gradual shrinking (contraction) or gradual expansion of the globe.Tectonic plates are able to move because the Earth's lithosphere has greater strength than the underlying asthenosphere. Lateral density variations in the mantle result in convection. Plate movement is thought to be driven by a combination of the motion of the seafloor away from the spreading ridge (due to variations in topography and density of the crust, which result in differences in gravitational forces) and drag, with downward suction, at the subduction zones. Another explanation lies in the different forces generated by the rotation of the globe and the tidal forces of the Sun and Moon. The relative importance of each of these factors and their relationship to each other is unclear, and still the subject of much debate.