exists below a depth of about 100 kilometers and in some regions extends as deep as 700 kilometers. The rock within this zone is easily deformed. PART II A. Convergent plate boundaries D. Paleomagnetism B. Transform plate boundaries E. Hot spot volcanism C. Divergent plate boundaries 6. Rocks that formed thousands or millions of years ago and contain a “record” of the direction of the magnetic poles at the time of their formation are said
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Plate Tectonics Ever since the beginning on time‚ Humans believed the ground is solid and immobile. But this is not true whatsoever. The Earth is every-changing and continually in motion. The stability of the Earth is not at all what we think it is. Thinking about the rotational axis of the Earth‚ and possibly of what the Earth may become at a certain point in time‚ has a great influence on understanding all aspects of living things‚ either in the past‚ present‚ or future. The study of Plate
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Plate Boundaries - map of epicenter of significant earthquake‚ M > 3.5 - active boundaries marked by zones of earthquakes and volcanoes - earthquakes closely associated with active plate boundaries Land forms associated with plate boundaries -mountain belts occur along many plate boundaries - N. America: main mountain belts stretch from Alaska to northwest N. America all the way to south along western edge of N. and S. America Oceanic forms associated with plate boundaries - topography
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Standard 8-3.1 What are Tectonic Plates- movement? (slides 7 and 8) Standard 8-3.6 Tectonic Plate boundaries (slides 9-21) 1. Convergent boundary Ocean-continent (slide 10) Continent-continent (slide 11) Oceanic-oceanic (slide 12) Volcanism (slide 13) 2. Divergent boundary Sea-floor spreading (slide 14) The Mid-Atlantic Ridge (slide 15) Sea-floor Exploration and Age Dating (slides 16-19) 3. Transform Boundary (San Andreas Fault‚ J. Tuzo Wilson) (slide 21) Faults (slides 22-24) and Folds (slide 25)
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GENERAL GEOLOGY - GEOL 1113 EXAM I WITH ANSWERS - Spring 2002 Below you will find the questions and answers for Exam I in my General Geology class. The correct answer for each question is highlighted in bold face green type. While you are reviewing the exam‚ pause at the questions you find you missed and try to understand why you missed them. Really understanding this will require not only that you understand why your answer is incorrect‚ but also why you chose it in the first place. Were you confused
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roads to crack. There are three different types of earthquakes Convergent boundary which is where one plate is forced over another plate during movement creating a thrust fault. A Divergent boundary is when the plates are forced apart from each other‚ usually forming a Rift Zone. This is common underneath the water on ocean floors.An example is the Mid Atlantic Ridge. The last one is the Transform fault‚ unlike divergent and convergent‚ the plates here slip by each other. This is also called
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cubed Oceanic Crust: 3.3 g/cm cubed Convergent Boundary: When the arrows are pointed towards the other direction‚ make sure to draw the subduction zone on your cross section towards the other direction as well. Convergent Boundary: When the arrows are pointed towards the other direction‚ make sure to draw the subduction zone on your cross section towards the other direction as well. What are the different types of plate boundaries? Convergent Boundary * ocean to continent collision
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plate boundaries exist because their defined by earthquake data and the depths of earthquakes show what type of boundary they are. 4. Divergent Boundary- places where plates are moving apart. Convergent Boundary- places where plates clash together. Transform Boundary-places where plates slide past each other. 5. At an oceanic divergent boundary you would find older rock away from mid-ocean ridges. 6. On continent-continent boundaries mountains are formed. 7. On ocean-ocean boundaries volcanoes
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Atlantic we can see many small Islands‚ located well away from the tectonic plate boundaries‚ these could be areas where there are hotspots in the tectonic plates much like Hawaii. At a hot spot‚ magma in the mantle can be abnormally hot‚ or the crust could be abnormally thin and weak. In either case magma is able to burn through the tectonic plate and well up through the crust regardless as to whether it is at a plate boundary. Describe the characteristics of‚ and explain the formation of‚ minor forms
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moving side to side or laterally‚ and even smashing into each other. The proof behind plate tectonics lies in mountain ranges and island chains like the Hawaiian Islands‚ both are products of plate tectonics. Earthquakes originate from plate boundaries called faults. The tension and movement between the conflicting faults is what causes the shock waves referred to as an earthquake. When the pressure between two conflicting plates is too much for the rock material to support‚ they can shift or
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