on the project’s importance scale. Contents [hide] 1 Older comments 2 ME AND MY EARTH 3 Moho not mojo 4 2 types of lithosphere 5 Second Figure is not useful and should be replaced or at least deleted 6 Lithosphere part of Tectonic Plate THEORY 7 Formula under oceanic lithosphere 8 Definition of lithosphere asthenosphere boundary Older comments[edit] 168.212.92.5 17:06‚ 21 September 2006 (UTC)well i just wanted to put something on this page so yeah‚ that’s it! LOL! Hi! I never
Premium Earth Plate tectonics
the movements of the continents be explained‚ or how do deep ocean trenches affect us? The three main theories that explain how these things work are sea-floor spreading‚ continental drift‚ and plate tectonics. These are the theories that give us explanation as to why the continents move‚ how plate tectonics work‚ etc. These theories were formed by different scientists and with different forms of evidence‚ some scientists used one of the other two theories to support theirs‚ and one theory is even
Premium Plate tectonics Earth Convergent boundary
The Earth consists of four concentric layers: inner core‚ outer core‚ mantle . mantle: ]. The crust is made up of tectonic plates [tectonic plates: Large areas of the Earth’s crust that move slowly on the upper part of the mantle‚ often colliding and moving away from each other. ]‚ which are in constant motion. Earthquakes and volcanoes are most likely to occur at plate boundaries. 1.1 The structure of the Earth The Earth is made up of four distinct layers: 1. The inner core is in the centre
Premium Plate tectonics Earth
Hot Spots During the 1960’s when plate tectonics were coming together‚ it explained the many new things and exposed many other magnificent ideas. This new scientific theory explained a number of mysteries like the movements of continents‚ form of the ocean floor‚ mountain chains‚ volcanoes‚ earthquakes‚ and how ancient life was sorted over time. Determining the behavior of the Earth’s crust‚ from plate tectonics‚ it made it easier for Geologist to focus more on the strange things that happen below
Premium Plate tectonics Earth Volcano
Plate tectonics help us to explain the process of folding. According to the theory of plate tectonics‚ the earth’s crust is broken up into sections called plates. These plates float on the semi-molten mantle. Thermal convection currents in the mantle drag these plates in different directions resulting in tectonic activity. Folding occurs when rock layers that were originally horizontal are bent into a series of wave-like folds. As a result of this collision of the earth’s tectonic plates‚ the
Premium Plate tectonics
the magnitude of the earthquake? The magnitude of the earthquake was 9.2. 3. This earthquake occurred just as geologists were figuring out plate tectonics. What principle of plate tectonics did the earthquake confirm? It confirmed the major principle of plate tectonics: the Oceanic Pacific Plate dives beneath the North American Continental Plate. 4. How many earthquakes does Alaska have per year? Alaska has on average 24‚000 earthquakes per year. 5. How many magnitude 7 earthquakes
Premium Plate tectonics 2004 Indian Ocean earthquake Tsunami
Earthquakes and Logarithms Earthquakes are responsible for a wast majority of natural hazards on our planet. This natural geological phenomena are almost impossible to predict‚ and they occur usually in zones of the planet that are prone to movement in the uppermost crust of the earth. Certain areas are more likely to experience earthquakes‚ and also the aftermath of the earthquakes can be just as destructive or sometimes even more. Different methods of measuring earthquakes have been implemented
Premium Earthquake Plate tectonics Earth
relief elements on the solid surface of the earth and briefly explain their deposition in relation to the plate tectonics concept. Have you ever wondered where mountains come from‚ why there is a sea floor‚ island arcs or even volcano and what plate tectonic have to do with this? Well worry no more as all your question on the earth’s surfaced topographic relief elements and plate tectonics are about to be answered. The first question that might come to mind is what is a relief? A relief is a land
Premium Plate tectonics
sand‚ gravel minor amount of calcium carbonate. The oldest of the sedimentary rock were formed during the Proterozoic Era about 800-545 million years ago. About 310-245 million years ago‚ the eastern edge of the North American tectonic plat collided with the African plate becoming part of a supercontinent. During one of earlier collisions‚ tremendous heat and pressure were generated. This changed the Smoky sedimentary rocks. For example‚ sandstone became recrystallized into quartzite and shale became
Premium Sediment Appalachian Mountains Atlantic Ocean
Quiz 4 1. The idea proposed by Alfred Wegener to explain the continental shapes and positions is known as _____. A) Pangaea B) plate tectonics C) continental drift D) rift valley E) sea floor spreading 2. In the diagram below‚ which two are the best examples of different continental positions in the past? A) North America – South America B) North America – Africa C) South America – Asia D) Europe – North America E) South America – Africa 3. According to Wegener’s model‚ what evidence
Premium Plate tectonics