convergent boundaries
... plates pull apart from each other, & the rising magma burns through the lithosphere creating a rift valley. Ex: East African Rift Valley, Red Sea ...
... plates pull apart from each other, & the rising magma burns through the lithosphere creating a rift valley. Ex: East African Rift Valley, Red Sea ...
CONVERGENT BOUNDARIES
... plates pull apart from each other, & the rising magma burns through the lithosphere creating a rift valley. Ex: East African Rift Valley, Red Sea ...
... plates pull apart from each other, & the rising magma burns through the lithosphere creating a rift valley. Ex: East African Rift Valley, Red Sea ...
Directed Reading A
... ______ 2. The place where tectonic plates touch is known as the a. continental plate. c. magma zone. b. tectonic boundary. d. tectonic ridge. ______ 3. Which of the following is NOT a type of tectonic plate boundary? a. convergent boundary c. divergent boundary b. fault-block boundary d. transform b ...
... ______ 2. The place where tectonic plates touch is known as the a. continental plate. c. magma zone. b. tectonic boundary. d. tectonic ridge. ______ 3. Which of the following is NOT a type of tectonic plate boundary? a. convergent boundary c. divergent boundary b. fault-block boundary d. transform b ...
File
... magma pushing up from the mantle. Picture two giant conveyor belts, facing each other, but slowly moving in opposite directions as they transport newly formed oceanic crust away from the ridge crest (center). Perhaps the best known of the divergent boundaries is the Mid-Atlantic Ridge. This is a sub ...
... magma pushing up from the mantle. Picture two giant conveyor belts, facing each other, but slowly moving in opposite directions as they transport newly formed oceanic crust away from the ridge crest (center). Perhaps the best known of the divergent boundaries is the Mid-Atlantic Ridge. This is a sub ...
GRAĐA ZEMLJE
... Pangaea, until it broke apart about 208 million years ago into Laurasia and Gondwanaland. You can now find the remains of Ur in parts of Africa, Australia, India, and Madagascar. ...
... Pangaea, until it broke apart about 208 million years ago into Laurasia and Gondwanaland. You can now find the remains of Ur in parts of Africa, Australia, India, and Madagascar. ...
PLATE TECTONICS AND SEA-FLOOR SPREADING REVIEW
... CREATING MOUNTAINS (EX: HIMALAYAS CREATED BY INDIA COLLING WITH ASIA) 9. ___SUBDUCTION___ occurs when old oceanic crust is forced back into the mantle. 10. Where is new oceanic crust being formed? __AT MID OCEAN RIDGES (SEA- FLOOR SPREADING)_____ ...
... CREATING MOUNTAINS (EX: HIMALAYAS CREATED BY INDIA COLLING WITH ASIA) 9. ___SUBDUCTION___ occurs when old oceanic crust is forced back into the mantle. 10. Where is new oceanic crust being formed? __AT MID OCEAN RIDGES (SEA- FLOOR SPREADING)_____ ...
Plate Tec Review Sheet 2016 Answers
... CREATING MOUNTAINS (EX: HIMALAYAS CREATED BY INDIA COLLING WITH ASIA) 9. ___SUBDUCTION___ occurs when old oceanic crust is forced back into the mantle. 10. Where is new oceanic crust being formed? __AT MID OCEAN RIDGES (SEA- FLOOR SPREADING)_____ ...
... CREATING MOUNTAINS (EX: HIMALAYAS CREATED BY INDIA COLLING WITH ASIA) 9. ___SUBDUCTION___ occurs when old oceanic crust is forced back into the mantle. 10. Where is new oceanic crust being formed? __AT MID OCEAN RIDGES (SEA- FLOOR SPREADING)_____ ...
Rift Valleys (1)
... from the rift in a conveyor belt fashion. Because of this process, we find that the age of oceanic crust increases as we move away from the rift zone. As the plates move apart, giant fractures appear through which the magma is able to reach the surface as lava, building a ridge on the ocean floor. T ...
... from the rift in a conveyor belt fashion. Because of this process, we find that the age of oceanic crust increases as we move away from the rift zone. As the plates move apart, giant fractures appear through which the magma is able to reach the surface as lava, building a ridge on the ocean floor. T ...
teachnm6
... When does the North Atlantic rift open? When does the South Atlantic rift open? When does India collide with Eurasia? When does Arabia rift away from Africa? ...
... When does the North Atlantic rift open? When does the South Atlantic rift open? When does India collide with Eurasia? When does Arabia rift away from Africa? ...
Words to know
... Plate Tectonics—the theory supported by a wide range of evidence that considers the earth’s crust and upper mantle to be composed of several large, thin, relatively rigid plates that move relative to one another. Slip on faults that define the plate boundaries commonly results in earthquakes. Sever ...
... Plate Tectonics—the theory supported by a wide range of evidence that considers the earth’s crust and upper mantle to be composed of several large, thin, relatively rigid plates that move relative to one another. Slip on faults that define the plate boundaries commonly results in earthquakes. Sever ...
Mountain Building
... V. Continental accretion of small crustal fragments A. Small crustal fragments collide with and accrete to continental margins 1.Accreted crustal blocks are called terranes 2.Occurred on western margin of North America B. Likely crustal fragments to accrete 1.Island arcs a. Appalachian Piedmont ter ...
... V. Continental accretion of small crustal fragments A. Small crustal fragments collide with and accrete to continental margins 1.Accreted crustal blocks are called terranes 2.Occurred on western margin of North America B. Likely crustal fragments to accrete 1.Island arcs a. Appalachian Piedmont ter ...
Lesson 5 - Igneous Rocks .key
... Intrusive igneous rocks crystallize below Earth's surface and the slow cooling that occurs there allows large crystals to form. An example of an intrusive igneous rocks is granite. Extrusive igneous rocks erupt onto the surface where they cool quickly to form small crystals. Some cool so quickly tha ...
... Intrusive igneous rocks crystallize below Earth's surface and the slow cooling that occurs there allows large crystals to form. An example of an intrusive igneous rocks is granite. Extrusive igneous rocks erupt onto the surface where they cool quickly to form small crystals. Some cool so quickly tha ...
Abundances and isotopic compositions of rare gases in granites
... argon, krypton and xenon released from four specimens of granites in stepwise-heating experiments. These rocks contained appreciable amounts of 40Ar from the decay of 40K and 131-136Xe from the 238U spontaneous fission. The contents of neon, argon (excluding 40Ar), krypton and xenon in these granite ...
... argon, krypton and xenon released from four specimens of granites in stepwise-heating experiments. These rocks contained appreciable amounts of 40Ar from the decay of 40K and 131-136Xe from the 238U spontaneous fission. The contents of neon, argon (excluding 40Ar), krypton and xenon in these granite ...
how mountains form
... D. Fault-Block Mountains • Formed by Compression or Tension • Blocks of crust are dropped (tension) or ...
... D. Fault-Block Mountains • Formed by Compression or Tension • Blocks of crust are dropped (tension) or ...
Plate Tectonics Study Guide – Key
... Why is there a high risk of earthquakes along the Pacific Coast of the United States? What landform is formed on top of a mantle plume hot spot? Which is more dense: old oceanic crust or young oceanic crust? Why? What are the two types of crust? What is an island arc and how is it related to plate t ...
... Why is there a high risk of earthquakes along the Pacific Coast of the United States? What landform is formed on top of a mantle plume hot spot? Which is more dense: old oceanic crust or young oceanic crust? Why? What are the two types of crust? What is an island arc and how is it related to plate t ...
Compared to the desolate surface of the Moon, Earth must
... I. Igneous Textures—refers to the size and shape of the minerals in the rock A. Phaneritic: contain crystals large enough to see with unaided eye. When magma cools slowly over hundreds to thousands of years the minerals crystallize slowly and have ample time to grow large. Intrusive Rocks (Plutonic ...
... I. Igneous Textures—refers to the size and shape of the minerals in the rock A. Phaneritic: contain crystals large enough to see with unaided eye. When magma cools slowly over hundreds to thousands of years the minerals crystallize slowly and have ample time to grow large. Intrusive Rocks (Plutonic ...
Slide 1
... • Crustal thickening • Lateral extrusion of rigid blocks • Possibly via lithospheric buckling • “Intra-collision zone subduction” 5) Intracontinental deformation is generally localized along crustal weakness ...
... • Crustal thickening • Lateral extrusion of rigid blocks • Possibly via lithospheric buckling • “Intra-collision zone subduction” 5) Intracontinental deformation is generally localized along crustal weakness ...
TYPES OF CRUSTAL MATERIAL
... TYPES OF CRUSTAL MATERIAL It is important to keep in mind when discussing plate tectonics that the crust of the Earth is composed of two basic types of crustal material. We refer to these as continental crust and oceanic crust. These types of crust differ in several ways. While both are made mostly ...
... TYPES OF CRUSTAL MATERIAL It is important to keep in mind when discussing plate tectonics that the crust of the Earth is composed of two basic types of crustal material. We refer to these as continental crust and oceanic crust. These types of crust differ in several ways. While both are made mostly ...
17.3 Theory of plate Tectonics
... and a series of volcanoes along the edge of the continental plate. – Two continental plates collide when an ocean basin between converging oceanic and continental plates is entirely subducted. ...
... and a series of volcanoes along the edge of the continental plate. – Two continental plates collide when an ocean basin between converging oceanic and continental plates is entirely subducted. ...
Convergent Plate Boundaries
... Boundaries • Oceanic – Oceanic lithospheric plates – Features include trench and volcanic islands ...
... Boundaries • Oceanic – Oceanic lithospheric plates – Features include trench and volcanic islands ...
Evolution of the Precambrian Rocks of Yellowstone National Park
... The Cooke City area contains key evidence about the metamorphic, structural and magmatic processes that have contributed to Archean crustal evolution in this area. ...
... The Cooke City area contains key evidence about the metamorphic, structural and magmatic processes that have contributed to Archean crustal evolution in this area. ...
Regents Earth Science
... Regents Earth Science - Chapter 5 Notes I. Igneous Rocks A. James Hutton (1795) began concept of uniformitarianism, which states that: 1. The same geologic processes have always been at work. 2. These processes formed the Earth as it is today over a long period of time. B. Rock (def'n) - a group of ...
... Regents Earth Science - Chapter 5 Notes I. Igneous Rocks A. James Hutton (1795) began concept of uniformitarianism, which states that: 1. The same geologic processes have always been at work. 2. These processes formed the Earth as it is today over a long period of time. B. Rock (def'n) - a group of ...
Powerpoint
... San Andreas into Gulf of California? Related to heating and thermal weakening of the crust? Timing, T structure of crust. 3. How does/did the system propagate? From south to north, but mechanics are unknown. 4. How does locus of faulting change through time? Not clear if it follows the western bound ...
... San Andreas into Gulf of California? Related to heating and thermal weakening of the crust? Timing, T structure of crust. 3. How does/did the system propagate? From south to north, but mechanics are unknown. 4. How does locus of faulting change through time? Not clear if it follows the western bound ...
Great Lakes tectonic zone
The Great Lakes tectonic zone is bounded by South Dakota at its tip and heads northeast to south of Duluth, Minnesota, then heads east through northern Wisconsin, Marquette, Michigan, and then trends more northeasterly to skim the northern-most shores of lakes Michigan and Huron before ending in the Sudbury, Ontario, Canada, area.During the Late Archean Era the Algoman orogeny added landmass to the Superior province by volcanic activity and continental collision along a boundary that stretches from present-day South Dakota, U.S., into the Lake Huron region near Sudbury, Ontario, Canada.This crustal boundary is the Great Lakes tectonic zone. It is 1,400 km (870 mi) long, and separates the older Archean gneissic terrane to the south from younger Late Archean greenstone-granite terrane to the north.The zone is characterized by active compression during the Algoman orogeny (about 2,700 million years ago), a pulling-apart (extensional) tectonics (2,450 to 2,100 million years ago), a second compression during the Penokean orogeny (1,900 to 1,850 million years ago), a second extension during Middle Proterozoic time (1,600 million years ago) and minor reactivation during Phanerozoic time (the past 500 million years).Collision began along the Great Lakes tectonic zone (GLTZ) with the Algoman mountain-building event and continued for tens of millions of years. During the formation of the GLTZ, the gneissic Minnesota River Valley subprovince was thrust up onto the Superior province's edge as it consumed the Superior province's oceanic crust. Fragmentation of the Kenorland supercontinent began 2,450 million years ago and was completed by 2,100 million years ago. The Wyoming province is the continental landmass that is hypothesized to have rifted away from the southern Superior province portion of Kenorland, before moving rapidly west and docking with the Laurentia supercontinent 1,850 to 1,715 million years ago. Sedimentation from the GLTZ-rifting environment continued into the Penokean orogeny, which is the next major tectonic event in the Great Lakes region. Several earthquakes have been documented in Minnesota, Michigan's Upper Peninsula and Sudbury in the last 120 years along the GLTZ.