Convergent Boundaries
... Scientists now have a fairly good understanding of how the plates move and how such movements relate to earthquake activity. •Most movement occurs along narrow zones between plates where the results of plate-tectonic forces are most evident. ...
... Scientists now have a fairly good understanding of how the plates move and how such movements relate to earthquake activity. •Most movement occurs along narrow zones between plates where the results of plate-tectonic forces are most evident. ...
Lab: Exploring Patterns in Regional Seismicity
... Geomorphology - the study of the physical features of the surface of the earth and their relation to its geological structures Background: Plate Tectonics The lithosphere can be divided into many large plates, which are moved around the surface of the planet over time. During this motion, plates int ...
... Geomorphology - the study of the physical features of the surface of the earth and their relation to its geological structures Background: Plate Tectonics The lithosphere can be divided into many large plates, which are moved around the surface of the planet over time. During this motion, plates int ...
1 IDS 102 Plate Tectonics Questions Part I: Observations
... Part I: Observations- Four maps of world are positioned around the room. Answer the questions associated with each map and record your general observations about the maps. World topography- this map portrays the elevation of the Earth’s surface by color. See the scale along the side of the map for t ...
... Part I: Observations- Four maps of world are positioned around the room. Answer the questions associated with each map and record your general observations about the maps. World topography- this map portrays the elevation of the Earth’s surface by color. See the scale along the side of the map for t ...
Answers Plate Tectonics Year 9 Science Chapter 7
... 9 Wegener theorised that the continents were drifting at about 1 m per century. At this speed, how far did Australia move in the last 1 million years? 1 million years of drift = 10 000 centuries at 1 m per century = 10 000 m = 10 km 10 The main problem with Wegener’s continental drift theory was t ...
... 9 Wegener theorised that the continents were drifting at about 1 m per century. At this speed, how far did Australia move in the last 1 million years? 1 million years of drift = 10 000 centuries at 1 m per century = 10 000 m = 10 km 10 The main problem with Wegener’s continental drift theory was t ...
Item 1 - lausd
... Imagine that you are a geologist visiting the city of Pompeii, Italy in 63 A.D., where seismic events have been occurring over hundreds of years. Recently, there was a massive earthquake. 1) Using evidence from the article on the following pages, state two advantages and two disadvantages of living ...
... Imagine that you are a geologist visiting the city of Pompeii, Italy in 63 A.D., where seismic events have been occurring over hundreds of years. Recently, there was a massive earthquake. 1) Using evidence from the article on the following pages, state two advantages and two disadvantages of living ...
magma
... As these plates float, they move in three different ways. Each way that they move has a special name associated with the boundary ...
... As these plates float, they move in three different ways. Each way that they move has a special name associated with the boundary ...
Plate-Tectonics-Web-Quest
... Step 3: Read the information on the top and for each layer of the earth when you roll over it with your ...
... Step 3: Read the information on the top and for each layer of the earth when you roll over it with your ...
OCN100--Study Guide
... Discuss how the following were important in the development of Plate Tectonic theory: o Studies of Earth’s magnetic field and paleomagnetism (Fig. 2.11) o Pattern of the age of the ocean floor (Fig. 2.12) o Distribution of earthquakes (Fig. 2.13) Describe the processes involved at the three types of ...
... Discuss how the following were important in the development of Plate Tectonic theory: o Studies of Earth’s magnetic field and paleomagnetism (Fig. 2.11) o Pattern of the age of the ocean floor (Fig. 2.12) o Distribution of earthquakes (Fig. 2.13) Describe the processes involved at the three types of ...
Plate-Tectonics-Web-Quest
... Step 3: Read the information on the top and for each layer of the earth when you roll over it with your mouse. Step 4: Answer the following questions in complete sentences. ...
... Step 3: Read the information on the top and for each layer of the earth when you roll over it with your mouse. Step 4: Answer the following questions in complete sentences. ...
Topography of the Ocean Floor Notes
... Submarine Canyon – A deep, eroded area in the continental slope carved out by turbidity currents ...
... Submarine Canyon – A deep, eroded area in the continental slope carved out by turbidity currents ...
Earths Layered Structure
... EARTH’S CRUST is made of rocky material got “sorted” by density when Earth was a young molten planet. More dense iron sank to center and less dense basalt and granite are on top. Magma suggests that there is liquid, MANTLE of molten rock under the solid, rocky crust There is a boundary between the s ...
... EARTH’S CRUST is made of rocky material got “sorted” by density when Earth was a young molten planet. More dense iron sank to center and less dense basalt and granite are on top. Magma suggests that there is liquid, MANTLE of molten rock under the solid, rocky crust There is a boundary between the s ...
Lecture Notes
... o YES!!! - this is the current (ha ha) theory for the formation of the Earth’s magnetic field and how it reverses Current Loops create the same magnetic field as a bar magnet - the same magnetic field as the Earth o Reverse current - reverses the magnetic field So - the current theory is that there ...
... o YES!!! - this is the current (ha ha) theory for the formation of the Earth’s magnetic field and how it reverses Current Loops create the same magnetic field as a bar magnet - the same magnetic field as the Earth o Reverse current - reverses the magnetic field So - the current theory is that there ...
Plate Tectonics Overview
... plate tectonics Many scientist felt that the land features were fixed on Earth. Wegener felt that all the Continents were one big land mass (Pangaea)that drifted apart. ...
... plate tectonics Many scientist felt that the land features were fixed on Earth. Wegener felt that all the Continents were one big land mass (Pangaea)that drifted apart. ...
3 - Sea Floor Spreading
... – Why is there so little sediment deposited on the ocean floor? If the oceans have existed for at least 4 billion years, as most geologists believed, shouldn’t there be more? – Why are fossils found on the seafloor no more than 180 million years old? Marine fossils in sedimentary rocks on land -- so ...
... – Why is there so little sediment deposited on the ocean floor? If the oceans have existed for at least 4 billion years, as most geologists believed, shouldn’t there be more? – Why are fossils found on the seafloor no more than 180 million years old? Marine fossils in sedimentary rocks on land -- so ...
Earth Processes vocab and notes
... plates. There are twelve major plates that fit together like a puzzle. These plates float on the soft mantle rock below, causing plates to move a few centimeters every year. The theory of plate tectonics explains how forces deep within the Earth can cause seafloors to spread and continents to move. ...
... plates. There are twelve major plates that fit together like a puzzle. These plates float on the soft mantle rock below, causing plates to move a few centimeters every year. The theory of plate tectonics explains how forces deep within the Earth can cause seafloors to spread and continents to move. ...
Earth Processes
... outer core The layer of Earth located between the inner core and the mantle. Pangaea The name German scientist Alfred Wegener gave to the supercontinent he believed existed before it broke up to form the continents; means “all lands.” plate A section of Earth’s crust and its corresponding section of ...
... outer core The layer of Earth located between the inner core and the mantle. Pangaea The name German scientist Alfred Wegener gave to the supercontinent he believed existed before it broke up to form the continents; means “all lands.” plate A section of Earth’s crust and its corresponding section of ...
Geology 111 - A3 - Global geology at the turn of the century
... continents, including Antarctica, also snails, earthworms and freshwater fish. Permanentists, who held that the oceans and continents have always been fixed, had some trouble explaining these anomalies. They dreamed up features such as land bridges across the oceans, so that these plants and animals ...
... continents, including Antarctica, also snails, earthworms and freshwater fish. Permanentists, who held that the oceans and continents have always been fixed, had some trouble explaining these anomalies. They dreamed up features such as land bridges across the oceans, so that these plants and animals ...
Plate Tectonics Webquest (5)
... and learn about the three types of plate boundaries and answer the questions below. 1. What are the three types of plate boundaries? ...
... and learn about the three types of plate boundaries and answer the questions below. 1. What are the three types of plate boundaries? ...
1/25/2016 WELCOME TO ENVIRONMENTAL SCIENCE 10 (ES 10)
... Typically shallow focus and small earthquakes ...
... Typically shallow focus and small earthquakes ...
Napoleon - Kawameeh Middle School
... What are that the continents fit together like a puzzle, same fossils can be found on 2 different continents, same types of ...
... What are that the continents fit together like a puzzle, same fossils can be found on 2 different continents, same types of ...
Volcanoes - Mr. Cramer
... Ring of Fire:a major volcanic belt formed by many volcanoes at the rim of the Pacific Ocean Most volcanoes occur along diverging plate boundaries, such as the mid-ocean ridge or in subduction zones around the edges of oceans ...
... Ring of Fire:a major volcanic belt formed by many volcanoes at the rim of the Pacific Ocean Most volcanoes occur along diverging plate boundaries, such as the mid-ocean ridge or in subduction zones around the edges of oceans ...
Knowledge Map
... Convection currents transfer heat when warm, less dense objects rise and cool, denser objects sink. ...
... Convection currents transfer heat when warm, less dense objects rise and cool, denser objects sink. ...
Sept 9 - Assignment Answers: Plate Tectonics
... 10. Find a Mantle Hot Spot that is located underneath a large continental plate. 10a. Name the Hot Spot: ___Yellowstone Hot Spot__________________________ 10b. State its approximate latitude and longitude (with units/labels)___45N, 120W___________ 11. Iceland is unique in that it was formed from Hot ...
... 10. Find a Mantle Hot Spot that is located underneath a large continental plate. 10a. Name the Hot Spot: ___Yellowstone Hot Spot__________________________ 10b. State its approximate latitude and longitude (with units/labels)___45N, 120W___________ 11. Iceland is unique in that it was formed from Hot ...
Plate tectonics
Plate tectonics (from the Late Latin tectonicus, from the Greek: τεκτονικός ""pertaining to building"") is a scientific theory that describes the large-scale motion of Earth's lithosphere. This theoretical model builds on the concept of continental drift which was developed during the first few decades of the 20th century. The geoscientific community accepted the theory after the concepts of seafloor spreading were later developed in the late 1950s and early 1960s.The lithosphere, which is the rigid outermost shell of a planet (on Earth, the crust and upper mantle), is broken up into tectonic plates. On Earth, there are seven or eight major plates (depending on how they are defined) and many minor plates. Where plates meet, 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.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; the material lost is roughly balanced by the formation of new (oceanic) crust along divergent margins by seafloor spreading. In this way, the total surface of the globe remains the same. This prediction of plate tectonics is also referred to as the conveyor belt principle. Earlier theories (that still have some supporters) propose gradual shrinking (contraction) or gradual expansion of the globe.Tectonic plates are able to move because the Earth's lithosphere has greater strength than the underlying asthenosphere. Lateral density variations in the mantle result in convection. Plate movement is thought to be driven by a combination of the motion of the seafloor away from the spreading ridge (due to variations in topography and density of the crust, which result in differences in gravitational forces) and drag, with downward suction, at the subduction zones. Another explanation lies in the different forces generated by the rotation of the globe and the tidal forces of the Sun and Moon. The relative importance of each of these factors and their relationship to each other is unclear, and still the subject of much debate.