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.[2] 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;
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What is Earth’s mantle? The Earth’s mantle is a roughly 1‚800 mile (2‚900 km) thick shell of compressed and heated rock‚ beginning below the Earth’s crust (lithosphere)‚ which extends 3.1 miles (5 km) below the ocean floor and 19 to 31 miles (30 to 50 km) below the continents. What elements make up the Earth’s mantle? magnesium‚ silicon‚ iron‚ and oxygen Describe the “big splash” theory of the Moon’s origin? The currently accepted hypothesis for the Moon’s origin--which is supported by chemical
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1) What type of plate boundary is depicted? a) b) c) d) e) convergent subduction transform divergent volcanic 2) What component of the plate boundary is represented here? a) b) c) d) e) continental crust melting oceanic crust trench volcanic arc 3) What component of the plate boundary is represented here? a) b) c) d) e) continental crust melting oceanic crust trench volcanic arc 4) Magmatism (melting) at this plate boundary is associated with __________
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Jaesung Lee Geography 1 Professor Thomas Orf Chapter 14 Questions 1) The first evidence Wegner was able to find was the remarkable number of close affinities of geologic features on both sides of the Atlantic Ocean. He found the continental margins of the subequatorial portions of Africa and South America fit together with jigsaw-on-like precision. He also determined that the petrologic records on both sides of the Atlantic show many distributions- such as ancient coal deposits-that would
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erosion or nondeposition is a UNCONFORMITY. 9. Earth formed 4.6 billion years ago. 10. Where divergent plate boundaries form beneath continental masses‚ low areas known as RIFT VALLEYS form. 11. An interval of geologic time not represented by strata in a particular are is a HIATUS. 12. The two basic types of luster are METALLIC and NONMETALLIC 13. The three types of convergent boundaries are OCEANIC-OCEANIC‚ OCEANIC-CONTINENTAL‚ CONTINENTAL- CONTINENTAL. 14. At a mid-ocean ridge spreading center
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of plate tectonics shows there are moving plates which make up the crust of the Earth. There are only two types of plates that compose the earth’s crust which are oceanic and continental‚ and among these plates there are three sorts of plate boundaries. The first is transformal‚ which means two plates are sliding past one another side by side such as the San Andreas Fault in California. The second type is divergent‚ meaning
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3D Gradient Vector Flow Matlab Implementation Gradient Vector Flow (to the right) calculated on the volume to the left. Gradient Vector Flow (GVF) is a feature-preserving diffusion of gradient information. It was originally introduced by Xu and Prince to drive snakes‚ or active contours‚ towards edges of interest in image segmentation. But GVF is also used for detection of tubular structures and skeletonization. In this post I present a simple Matlab implementation of GVF for 3D images which
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One of the types of rocks that can be found on the Earth are sedimentary rocks. There are two other kinds which are igneous and metamorphic rock. Sedimentary rocks cover about 75 to 85 % of the land on Earth. When pieces of rock or parts of once- living organisms or minerals from precipitation deposit and solidify on Earth’s surface they for sedimentary rocks. (Murck‚ et al.‚ 2008) In addition‚ the way the plate tectonics move‚ can significantly affect sedimentation and the formation of sedimentary
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Would the world be the same if there weren’t plate tectonics? The answer is no‚ because that is how the oceans‚ land‚ and many more things were created. There would be no rocks or plate boundaries. Every living thing on earth would have to adapt to these types of things‚ if there even was living things on earth. The different types of rocks like igneous‚ sedimentary‚ and metamorphic have to go through a process to become that type of rock. Igneous is formed when magma is cooled and
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Associate Program Material History of Rock Worksheet Write a 500- to 750-word explanation regarding the role of plate tectonics in the origin of igneous rocks. | Plate tectonics play a major role in the origin of igneous rocks. Igneous rocks are called fire rocks and are formed either| |underground or above ground. Underground‚ they are formed when the melted rock‚ called magma‚ deep within the earth becomes trapped| |in small pockets. As these pockets of magma cool slowly underground
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