Chapter 3: Marine Provinces
... Shape of curve supports plate tectonics Earth shaped actively by plate tectonics ...
... Shape of curve supports plate tectonics Earth shaped actively by plate tectonics ...
mantle convection worksheet
... 5. What happens to the temperature and density of the material between points B and C? 6. What force causes the convection cell to turn down at point C? 7. What happens to the temperature and density of the material between points D and A? 8. What causes the convection cell to turn up at point A? 9. ...
... 5. What happens to the temperature and density of the material between points B and C? 6. What force causes the convection cell to turn down at point C? 7. What happens to the temperature and density of the material between points D and A? 8. What causes the convection cell to turn up at point A? 9. ...
What`s Happening During Convection?
... 5. What happens to the temperature and density of the material between points B and C? 6. What force causes the convection cell to turn down at point C? 7. What happens to the temperature and density of the material between points D and A? 8. What causes the convection cell to turn up at point A? 9. ...
... 5. What happens to the temperature and density of the material between points B and C? 6. What force causes the convection cell to turn down at point C? 7. What happens to the temperature and density of the material between points D and A? 8. What causes the convection cell to turn up at point A? 9. ...
Seafloor Spreading Hypothesis
... After the war, Harry Hess put together the ideas and evidence he needed. Hess resurrected Wegener's continental drift hypothesis. He reviewed the mantle convection idea. He thought about the bathymetric features and the patterns of magnetic polarity on the seafloor. In 1962, Hess published a new id ...
... After the war, Harry Hess put together the ideas and evidence he needed. Hess resurrected Wegener's continental drift hypothesis. He reviewed the mantle convection idea. He thought about the bathymetric features and the patterns of magnetic polarity on the seafloor. In 1962, Hess published a new id ...
Mountain Building ws File
... Two Tectonic Plates meet along the Southern Alps. This is called a fault line. The Southern Alps are constantly changing because the Pacific Plate is being pushed down under the Australian Plate and that causes the Alps to rise up. Volcanic activity. Volcanic mountains are formed when molten rock (m ...
... Two Tectonic Plates meet along the Southern Alps. This is called a fault line. The Southern Alps are constantly changing because the Pacific Plate is being pushed down under the Australian Plate and that causes the Alps to rise up. Volcanic activity. Volcanic mountains are formed when molten rock (m ...
Plate tectonics: why only on Earth?
... Water drastically reduces the melting point of silicates. At 1 bar, dry basalt would melt around 1200˚C. However, in the presence of 10 % water, and if the confining pressure is high enough to prevent the water from escaping from the system, the melting point drops to 800˚C or less. Traces of water ...
... Water drastically reduces the melting point of silicates. At 1 bar, dry basalt would melt around 1200˚C. However, in the presence of 10 % water, and if the confining pressure is high enough to prevent the water from escaping from the system, the melting point drops to 800˚C or less. Traces of water ...
Density of Earth Materials Lab - Mercer Island School District
... olivine and pyroxene, has similar physical properties to account for observed speeds of seismic waves that travel through Earth’s upper mantle. Peridotite and Dunite are more dense than crustal rocks (with average densities between 3.2 - 3.4 g/cm3). Additional observations come from the field which ...
... olivine and pyroxene, has similar physical properties to account for observed speeds of seismic waves that travel through Earth’s upper mantle. Peridotite and Dunite are more dense than crustal rocks (with average densities between 3.2 - 3.4 g/cm3). Additional observations come from the field which ...
8-3.6 - S2TEM Centers SC
... To make a divergent plate boundary. Place the two squares of fruit roll up (oceanic plates) onto the frosting right next to each other. Press down slowly on the fruit roll ups (because they are dense and will sink a bit into the asthenosphere) as you slowly push them apart about half a cm. Observe w ...
... To make a divergent plate boundary. Place the two squares of fruit roll up (oceanic plates) onto the frosting right next to each other. Press down slowly on the fruit roll ups (because they are dense and will sink a bit into the asthenosphere) as you slowly push them apart about half a cm. Observe w ...
Outline
... – Island arc – Continental arc The mid-ocean ridge • Circles the globe like the seam of a baseball • Mostly traverses the middle of ocean basins • A topographically high mountain range • Entirely volcanic in origin • Associated with plate divergence • In the Pacific Ocean, called the East Pacific Ri ...
... – Island arc – Continental arc The mid-ocean ridge • Circles the globe like the seam of a baseball • Mostly traverses the middle of ocean basins • A topographically high mountain range • Entirely volcanic in origin • Associated with plate divergence • In the Pacific Ocean, called the East Pacific Ri ...
T2 Precambrian Geology Homework KEY
... 14) The largest belt of folded rocks indicating Proterozoic continental collisions is called the: a) Grenville Orogen. b) Trans-Hudson Orogen.. c) Mazatal Orogen. d) Wopmay Orogen 15) The last major Proterozoic collision before assembly of Rodinia is recorded by rocks in the: a) Grenville Orogen.. ...
... 14) The largest belt of folded rocks indicating Proterozoic continental collisions is called the: a) Grenville Orogen. b) Trans-Hudson Orogen.. c) Mazatal Orogen. d) Wopmay Orogen 15) The last major Proterozoic collision before assembly of Rodinia is recorded by rocks in the: a) Grenville Orogen.. ...
Earth*s Interior - Mr. Cramer
... How are seismic waves used to provide evidence about Earth’s interior? List Earth’s three main layers. What is the difference between the lithosphere and the asthenosphere? In which layer is each located? Classify each of the following layers as liquid, solid, or solid but able to flow slowly: litho ...
... How are seismic waves used to provide evidence about Earth’s interior? List Earth’s three main layers. What is the difference between the lithosphere and the asthenosphere? In which layer is each located? Classify each of the following layers as liquid, solid, or solid but able to flow slowly: litho ...
Earth,Notes,RevQs,Ch13
... regions dominated by basaltic volcanism associated with hotspots. However, neither area is characterized by rifting or fragmentation of a continent. Thus, hotspot volcanism does not necessarily always lead to the breakup of a continent. 20. When initially formed, oceanic crust is warm and buoyant, w ...
... regions dominated by basaltic volcanism associated with hotspots. However, neither area is characterized by rifting or fragmentation of a continent. Thus, hotspot volcanism does not necessarily always lead to the breakup of a continent. 20. When initially formed, oceanic crust is warm and buoyant, w ...
13-1
... b. buckles and folds to form a line of mountains along the edge of the continent. c. creates a line of earthquakes along the edge of the continent. d. creates a line of denser oceanic lithosphere. _____ 24. As an oceanic plate sinks into the asthenosphere, water can combine with crust and mantle mat ...
... b. buckles and folds to form a line of mountains along the edge of the continent. c. creates a line of earthquakes along the edge of the continent. d. creates a line of denser oceanic lithosphere. _____ 24. As an oceanic plate sinks into the asthenosphere, water can combine with crust and mantle mat ...
Quick Review
... An opening in Earth’s crust resulting from the movement of tectonic plates Occur at __________________ plate boundaries surrounding the Pacific Ocean (Ring of Fire) Occur at divergent plate boundaries as well: ________________ sits on the _______________________ _______________ Occur at hot ...
... An opening in Earth’s crust resulting from the movement of tectonic plates Occur at __________________ plate boundaries surrounding the Pacific Ocean (Ring of Fire) Occur at divergent plate boundaries as well: ________________ sits on the _______________________ _______________ Occur at hot ...
PLATE KINEMATICS
... in spreading direction. F1 - pressure of asthenosphere at ridge and F2 - pressure of water at ridge. At the other end are subduction zones. Sometimes spreading occurs behind the arc. Earthquakes go down to 600 km - define the Benioff Zone, show where plate is going down. The largest earthquakes in t ...
... in spreading direction. F1 - pressure of asthenosphere at ridge and F2 - pressure of water at ridge. At the other end are subduction zones. Sometimes spreading occurs behind the arc. Earthquakes go down to 600 km - define the Benioff Zone, show where plate is going down. The largest earthquakes in t ...
YOUR Journey to the Center of the Earth
... You must include the following: • Description of how you will get to the center and back. Invent a machine, no magic allowed! • The Crust – Types – Thickness of each kind and what each kind is made of • The Mantle – How thick it is – What are the temps? • The Asthenosphere – What it is, where it is ...
... You must include the following: • Description of how you will get to the center and back. Invent a machine, no magic allowed! • The Crust – Types – Thickness of each kind and what each kind is made of • The Mantle – How thick it is – What are the temps? • The Asthenosphere – What it is, where it is ...
File - 6th Grade Earth Science
... 1. A collision between two pieces of continental crust at a converging boundary produces what type of geological feature? MOUNTAIN RANGES 2. What was Alfred Wegener's hypothesis of continental drift? EARTH’S CONTINENTS WERE ONCE A SOLID ...
... 1. A collision between two pieces of continental crust at a converging boundary produces what type of geological feature? MOUNTAIN RANGES 2. What was Alfred Wegener's hypothesis of continental drift? EARTH’S CONTINENTS WERE ONCE A SOLID ...
A new Norwegian Centre of Excellence at the Department of
... Late PaleozoicEarly Triassic Late JurassicCretaceous Late CretaceousPaleocene ...
... Late PaleozoicEarly Triassic Late JurassicCretaceous Late CretaceousPaleocene ...
MiSP Plate Tectonics Worksheet #1 L1
... Introduction You have already learned about Continental Drift, divergent, convergent, and transform plate boundaries, mid-ocean ridges, subduction, and the role that convection currents in the earth’s mantle play in causing these phenomena. It seems that the different parts of our planet are moving. ...
... Introduction You have already learned about Continental Drift, divergent, convergent, and transform plate boundaries, mid-ocean ridges, subduction, and the role that convection currents in the earth’s mantle play in causing these phenomena. It seems that the different parts of our planet are moving. ...
Summer term - Restless Earth SOL
... Explain how volcanic eruptions can often be predicted but earthquakes ...
... Explain how volcanic eruptions can often be predicted but earthquakes ...
Types of Plate Boundaries
... it is said to be sub-ducting beneath the overriding plate. This boundary between the two plates is a subduction boundary. These boundaries can occur between two ocean plates or and ocean and continental plate. ...
... it is said to be sub-ducting beneath the overriding plate. This boundary between the two plates is a subduction boundary. These boundaries can occur between two ocean plates or and ocean and continental plate. ...
The Diversity of Life MODIFIED
... •continuous shell of solid rock around Earth •contains Earth’s solid crust and a flexible part of the mantle •crust is somewhat cracked •pushed in different directions by currents in the mantle caused by heat (convection currents). ...
... •continuous shell of solid rock around Earth •contains Earth’s solid crust and a flexible part of the mantle •crust is somewhat cracked •pushed in different directions by currents in the mantle caused by heat (convection currents). ...
APES Review: Earth Systems and Global Changes
... subduction; plates will buckle – forms tall, folded mountains ...
... subduction; plates will buckle – forms tall, folded mountains ...
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.