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Northeast c. South d. Northwest e. Southwest f. North Prior to . Along it, the Pacific Plate has been grinding horizontally past the North American Plate for 10 million years, at an average rate of about 5 cm/yr. In what compass direction is the Pacific Plate moving? The islands appear in this pattern for a specific reason: They were formed one after the other as a tectonic plate, the Pacific Plate, slid over a plume of magma—molten rock—puncturing Earth's crust. Red line shows separation between moving hot spots in the Doubrovine et al. c. How fast is the plate moving in centimeters per year (cm/yr)? The headings indicate the direction the Pacific Plate is moving over the hot spot. the largest plate, the Pacific Plate is moving north west relative to the plate that holds North America. Land on the west side of the fault zone (on the Pacific Plate) is moving in a northwesterly direction relative to the land on the east side of the fault zone (on the North American Plate). Thus the line of the youngest islands is oriented west-northwest as they move towards Japan) 8. (see previous question) 9. Make sure to read ALL sections of Chapter 4 in the lab manual. The largest one, the Pacific Plate is moving north west relative to the plate that holds North America, and relative to hot spots coming up through the mantle from below the plates (they generate islands like Hawaii). As part of the supercontinent cycle, India drifted apart moving northwards. In what direction is the North American Plate moving relative to the Pacific Plate along the San Andreas Fault? Question. What general direction has the Pacific plate been moving for the past 5 million years? Each plate is moving in a different direction, but the exact direction depends on the "reference frame," or viewpoint, in which you are looking at the motion. Australia is not quite where you think it is. first suggested it, the HEB has been explained by a dramatic ~ 60° change in direction of Pacific Plate motion over a stationary hot spot in the mantle (Morgan, 1971). Plate tectonics are odd because they often consist of oceanic and continental crust.For example, the Pacific Plate underlies the Pacific Ocean with the Hawaiian Islands positioned smack dab in the middle. 3) Draw on the map where you would expect the next Hawaiian Island to form, in the future, when Hawaii moves . Maps are plan or bird's eye views of the earth's surface. The fault is 1300 km long, extends to at least 25 km in depth, and has a north west-south east trend. Describe how Fred Vine and D.H. Mathews related the seafloor-spreading hypothesis to magnetic reversals. The continent has shifted by 4.9 feet since the last adjustment was made to GPS coordinates in 1994, reports the New York Times. Note that the motion of the plate and the rate of movement of the plate is not uniform across the entire area of the plate. What general direction has the Pacific plate been moving for the past 5 million years? 3. fifth plate, the Nazca, lies west of the South American continent. . The North American plate is moving to the west-southwest at about 2.3 cm (~1 inch) per year driven by the spreading center that created the Atlantic Ocean, the Mid Atlantic Ridge. The evidence is the chain of volcanic islands and seamounts on the Pacific Ocean floor form a feature with a distinct bend indicating a change in the direction of the Pacific plate. The major plates are Eurasia, Pacific, India, Australia, North America, South America, Africa, and Antarctic. When magma forms, it preserves current magnetic polarity (normal or reverse). While the hot spot itself is fixed, the plate is moving. Email. _____ Explain your answer. [7] The North American plate is moving to the west-southwest at about 2.3 cm (~1 inch) per year driven by the spreading center that created the Atlantic Ocean, the Mid Atlantic Ridge. The six largest Hawaiian Islands—the Big Island, Maui, Lanai, Molokai, Oahu, and Kauai—form a chain of islands running to the northwest. Label this island Loihi. So, as the plate moved over the hot spot, the string of islands that make up the Hawaiian Island chain were formed. off the hot spot. It is classified as a right lateral (dextral) strike-slip fault. I assume that the data in your assumes it would take 2.1 x 10^6 years for the Pacific Plate to move the 181 km distance from Kauai to Oahu. At about 58,900,000 km 2, the Indo-Australia plate is the sixth largest plate tectonic boundary. Land on the west side of the fault zone (on the Pacific Plate) is moving in a northwesterly direction relative to the land on the east side of the fault zone (on the North American Plate). Explain your answer. Disney's Polynesian Village Resort, Orlando dès 707€ sur Tripadvisor: Consultez les 3 95 The Pacific Plate is moving to the northwest at a speed of between 7 and 11 centimeters (cm) or ~3-4 inches a year. In which compass direction is the Pacific plate moving? A better fit to the radiometric ages of the Emperor seamounts can be achieved by allowing the Pacific plate to move at a slower velocity in the same direction before the formation of the bend at . This leaves a residual motion of 4.3 ± 0.8 mm yr −1 between Baja California and the Pacific Plate. Informations d'accès. In what direction is the North American Plate moving relative to the Pacific Plate along the San Andreas Fault? Loihi Seamount, an active submarine volcano, is forming about 35 km off the southern coast of Hawaii. a. shows no change _____ Explain your answer. Notice what happens as you move your left hand away and slide your right hand toward you. The model builds on the concept of continental drift, an idea developed . The Hawaiian Islands were formed by such a hot spot occurring in the middle of the Pacific Plate. . It is moving to the west. The Pacific plate is currently moving northwest and prior to that it was moving north (N) to north-northwest (NNW). The arrow shows the approximate direction of plate movement. The continent has shifted by 4.9 feet since the last adjustment was made to GPS coordinates in 1994, reports the New York Times. C. the rifting of the Pacific Plate, starting at the northwest end of . 'pertaining to building') is the generally accepted scientific theory that considers the Earth's lithosphere to comprise a number of large tectonic plates which have been slowly moving since about 3.4 billion years ago. In fact, this process may be under way. Pacific Plate X Photo: NOAA Tracking the Hawaiian Islands: How Fast Does the Pacific Plate Move? Approximately 43 million years ago, the plate changed its relative direction of motion — it had previously been moving in a more northerly direction greater than 43 million years ago. Question. A. Southeast B. C. Northwest D. Southwest North American plate Aendocino Fault San Francisco San Andreas Pacific plate LOS Angeles Gulf of . The arrows along the plate boundaries point in opposite directions, indicating that the Pacific Plate and the Antarctic Plate are moving away . The oceanic floor at the mid-ocean . Deformation along the transform plate boundary in California can be visualized by placing a deck of cards between your hands in a praying position. The motion is either westward or northwestward. There are four types of plate boundaries: (1) Divergent boundaries, where new crust is generated as the plates pull away from each . As is the north American plate which will make the Atlantic Ocean bigger and the Pacific ocean smaller. The Hawaiian Islands formed as the Pacific Plate moved above the Hawaiian Hot Spot. Les tarifs (aller-retour) : 6€/adulte, 3€/enfant (3-11 ans). speed) = b. Rate of movement of Pacific Plate (i.e. north. This is occurring as North and South America are moving westwards, widening the Atlantic . Plate Tectonics Lab (Taken from Laboratory Manual for Physical Geology by Deline, Harris, and Tefend, 2015) The following questions have been selected from the lab manual for you to answer. The San Andreas Fault marks the junction between the North American and Pacific Plates. . . A. Southeast B. One explanation is an abrupt change in the motion of the Pacific tectonic plate, the opposite model states southward drift of the mantle plume that has sourced the chain since its beginning 80 . The North American Plate is moving to the southwest direction away from the Mid-Atlantic Ridge. The overall motional trend of the plate is approximately 1.5cm/year in the WSW direction, considerably slower than the Pacific plate to its west, which is moving at ~9cm/year. The background to this question is the fact that there are 14 major tectonic plates on Earth: the Pacific, North America, South America, Eurasia, India, Australia, Africa, Antarctica . the largest plate, the Pacific Plate is moving north west relative to the plate that holds North America. On the surface of the earth, nothing can move along a straight line, instead the plates rotate around a point on the surface. The direction of plate movement in the last $1.1$ million years _____. Here, the top of the figure is north, and the bottom of the figure is south. One explanation is an abrupt change in the motion of the Pacific tectonic plate, the opposite model states southward drift of the mantle plume that has sourced the chain since its beginning 80 . Continental drift and sea-floor spreading became widely accepted around 1965 as more and more geologists started thinking in these terms. The Hawaiian Islands form an archipelago that extends over a vast area of . i also did this recently<3. Select one: a. Southeast b. The rate at which the Pacific plate is moving over the Hawaiian hot spot can be easily estimated from the geographic and age data. As the Pacific and North American plates diverge slightly, the remnants of the . The rate at which the Pacific plate is moving over the Hawaiian hot spot can be easily estimated from the geographic and age data. close. Likewise, what type of boundary is the North American plate? Note that the hotspot is not at a plate boundary. The Cocos plate lies in the Pacific Ocean off the west coast of Central America. Although both plates are moving in a north westerly direction, the Pacific Plate is moving . Refer to the figure to the right. Are the Pacific Plate and the Antarctic Plate moving toward each other, away from each other, or past each other? Two plates move towards one another and one is dragged down (or "subducted") beneath the other. The negligible difference in azimuth, which is also indicated by the proximity of the two Euler poles, shows that Baja California is moving in approximately the same direction as the Pacific Plate with respect to North America. in the chain about 2,200 miles northwest of the Island of Hawai'i was previously interpreted as a major change in the direction of plate motion around 43-45 . Name the biggest and longest mountain range in the world. Email. The average rate of movement of the plate in the Yellowstone area for the last 16.5 million years has been about 4.6 centimeters (1.8 inches) per year. July 28, 2012 - 70 Million Years of Pacific Plate Movement: The map above shows significant volcanoes over the last 3,500 years, in and around the Pacific Ocean. In what direction is the Pacific Plate moving? Assuming that hot spots remain fixed, in what direction was the Pacific plate moving When Suiko Seamount was forming? The Hawaiian Islands formed as the Pacific Plate moved above the Hawaiian Hot Spot. The result of this interaction is that the fast moving Pacific plate is diverging slightly from the North American plate. Today, the Pacific Plate, along with the Pacific Ocean Basin, is shrinking. From a Late Cretaceous convergence rate of ∼120-140 mm/yr, the rate declined substantially during early Tertiary time and reached a minimum in Eocene time of ∼30-40 mm/yr. State the relative compass direction that the Pacific plate is moving 1 See answer The Pacific Plate is moving roughly to the northwest. i also did this recently<3. South C. Northwest D. Southwest plate zone 9. B. a hot spot currently sitting under Hawaii and the Pacific Plate moving across it in a northwesterly direction. CSZ, Cascadia Subduction Zone; . Arrows indicate direction each plate is moving relative to the hotspot reference frame of Wang et al. All of the . The North American plate is moving to the west-southwest at about 2.3 cm (~1 inch) per year driven by the spreading center that created the . By the end of 1967 the Earth's surface had been mapped into a series of plates (Figure 10.4.1). The island of Lanai in the Hawaiian Island chain is 1.28 million years. The Pacific Plate is moving to the northwest at a speed of between 7 and 11 centimeters (cm) or ~3-4 inches a year. Actually, the source of the hotspot is more or less stationary at depth within the Earth, and the North America plate moves southwest across it. You can see the motion of the plate in the Hawaiian Islands. As the tectonic plates move, they slide over a fixed 'geologic hot spot.' This hot spot erupts into a volcano as the tectonic plate moves northwest. Answer (1 of 3): "What direction is the North American plate moving?" Because of it's size and being on a curved surface, the motion on the east coast is generally towards the NW, but on the west coast, it is towards the southwest….. this is very apparent when you look at the motion of the Nth A. As the Pacific plate moves across the hotspot, the chain of islands and seamounts has been created. At 103 million km 2 (40 million sq mi), it is the largest tectonic plate.. The Pacific Plate is an oceanic tectonic plate that lies beneath the Pacific Ocean. arrow_forward. This may seem like small and slow motion but over . The headings indicate the direction the Pacific Plate is moving over the hot spot. If so, then: 1 km = 100,000 cm = 10^5 cm An analysis of the motion of the Pacific plate relative to Eurasia suggests that the rate of Pacific-Eurasia convergence varied significantly during the Tertiary Period. It is classified as a right lateral (dextral) strike-slip fault. Click here to get an answer to your question ️ Theory of Plate Tectonics In which direction is the Pacific Plate moving in relation to the North American Pl… shamyrabivins83 shamyrabivins83 04/29/2020 . As a result, the boundary between these two plates is a large subduction zone. Two plates move towards one another and one is dragged down (or "subducted") beneath the other. Overview In the activity, students use information about the average age of the Hawaiian Islands and What direction is the afrian plate moving? Plate tectonic theory explains this as Choose one: A. microplates breaking loose from the Pacific Plate as it moves, leaving this chain of islands in its wake. Introduction. The Australian Plate is moving in a North to Northeastern direction at a speed of approximately 7 cm /year (although the continent of Australia only shifts by approximately 5.6 cm/year) [1][7]. The left side of the figure is west, and the right side is east. 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