Introduction to Geology GEOL-101 Midterm 1 Review Based on the textbook: Understanding Earth‚ 6th Edition‚ by Grotzinger and Press CH 1: earth system Summary The human creative process‚ field and lab observations‚ and experiments help geoscientists formulate testable hypotheses (models) for how the Earth works and its history. A hypothesis is a tentative explanation focusing attention on plausible features and relationships of a working model. If a testable hypothesis is confirmed by a large
Premium Earth Management Geology
Continental Drift‚ Plate Tectonics‚ The North American Plate The experts and scientists have theories on how the the world’s plates move and how earthquakes occur. These theories on how the world’s plate move is called continental drift and the theory on how earthquakes occur is called plate tectonics. They also have a lot of information on the North American Plate and in which direction it is moving and information like that. Now let me tell you more about each of these topics. Continental
Premium Plate tectonics
INTRODUCTION Plate tectonics The large scale motions of the earth’s lithosphere are describe by a scientific theory called plate tectonics which explains that Earth’s outer layer is made up of plates‚ which have moved throughout Earth’s history. The theory was developed during first decade of 20th century (by a famous advocate Alfred Wegener) on the older concept of continental drift and was accepted by many geoscientific communities. There are currently seven major and many minor plates are
Premium Plate tectonics
What are conditions like on the seafloor? It is in absolute darkness‚ with temperatures near freezing. The water is 3.5 kilometers high and exerts a pressure hundreds of times greater than atmospheric pressure on Earth. What is the main type of igneous rock found on the seafloor? Basaltic rock is heavy and sinks forming the world’s deep ocean basins. Describe the topography of the seafloor: shelf‚ slope‚ canyons‚ rise‚ and abyss. Continental shelf‚ the most shallow and accessible region‚ they cover
Free Plate tectonics Ocean Oceanography
more erosion literally combined the volcanoes into one mass of rocky land * Step 4: the mass of land is now a hard smooth plate‚ the Canadian Shield * Step 5: the Atlantic plate crashed into the east side of Canada and the area of subduction formed the Appalachian mountains * Step 6: erosion moved sand and dirt into the pacific ocean and the atlantic ocean * Step 7: the Pacific plate collided with the west side of Canada‚ forming the Rocky Mountains * Step 8: the
Premium Plate tectonics Earth Water
form a volcano. Volcanoes can also occur at tectonic plate boundaries because Volcanoes form where the earth’s crust is thin and the magma can flow to the surface easier. This happens mostly at the edge of the plates. Volcanoes lastly can occur at subduction zones because that is where the crust is being forced down into the lower levels and becomes magma also becomes higher pressure as it moves down something must move up to balance out‚ the magma moves up forming a volcano. Volcanoes can occur in
Premium Volcano Lava Plate tectonics
depicting the locations which are prone to both. Volcanism is associated with two of the plate boundary types: divergent and convergent margins‚ so activity is usually found along oceanic ridges where plates are moving apart‚ near rift valleys‚ on subduction zones where the most violent activity takes place and over hot spots which have given rise to the Hawaiian islands. Magma is generated at most plate boundaries‚ and this magma rises to the surface to form volcanoes. The mobility of crust also causes
Premium Volcano Plate tectonics Earthquake
divergent plate boundary). Mid-Atlantic Ridge. 4. What are the three types of convergent plate boundaries? Oceanic-continental convergence‚ Oceanic-oceanic convergence‚ Continental-continental convergence. What two kinds of crust are involved in a subduction zone? Oceanic and continental. 7. What type of convergent boundary is the Himalaya Mountains formed by? Continental-continental. 8. What happens along a transform plate boundary? Result in earthquakes and possibly faults. 9. Name a famous
Premium Plate tectonics
destructive plate boundary on the south- east coast of China‚ generating pressure during the subduction activity and causing vulcanicity. In the destructive plate boundary‚ magma currents beneath earth crust converge‚ dragging two plates together while the heavier plate sinks and being subducted under another plate‚ the subducted zone will then be melt back to magma again. Pressure accumulates while the subduction of the heavier plate is occurring‚ crack will develop on both plates near the boundary allowing
Premium Igneous rock Sedimentary rock Rock
April 1st lecture FINAL EXAM IS WORTH 40% Professor goes by Abhi (Obi) like star wars One required textbook Earthquakes science and society lecture will be on additional material not in book but will be guided by materials in the book. take notes (HE SAID IT ALOT!) his lecture slides will not be posted. CH.1 for this lecture Why Learn Earthquakes? Plate Tectonics they are not static they always move. they are moving in a limited space it will cause friction when it moves
Free Earthquake Plate tectonics