12.1 Notes - power point
... Sediments along the ridge became thicker farther away from the ridge. Paleomagnetism shows that iron-based rocks along the ridges are striped with reversing magnetic fields. Volcanoes are frequently found on boundaries between tectonic plates. ...
... Sediments along the ridge became thicker farther away from the ridge. Paleomagnetism shows that iron-based rocks along the ridges are striped with reversing magnetic fields. Volcanoes are frequently found on boundaries between tectonic plates. ...
12.1 Evidence for Continental Drift
... Sediments along the ridge became thicker farther away from the ridge. Paleomagnetism shows that iron-based rocks along the ridges are striped with reversing magnetic fields. Volcanoes are frequently found on boundaries between tectonic plates. ...
... Sediments along the ridge became thicker farther away from the ridge. Paleomagnetism shows that iron-based rocks along the ridges are striped with reversing magnetic fields. Volcanoes are frequently found on boundaries between tectonic plates. ...
12.1 Evidence for Continental Drift How Can Continents Move? Sea
... Sediments along the ridge became thicker farther away from the ridge. Paleomagnetism shows that iron-based rocks along the ridges are striped with reversing magnetic fields. Volcanoes are frequently found on boundaries between tectonic plates. ...
... Sediments along the ridge became thicker farther away from the ridge. Paleomagnetism shows that iron-based rocks along the ridges are striped with reversing magnetic fields. Volcanoes are frequently found on boundaries between tectonic plates. ...
Review
... 13. Where is new oceanic crust formed? 14. Where is oceanic crust destroyed? 15. What are three types of unconformities? 16. What is the basic structure of all silicate minerals? What elements make up this structure? 17. How do silicate mineral groups increase in complexity related to bonding of sil ...
... 13. Where is new oceanic crust formed? 14. Where is oceanic crust destroyed? 15. What are three types of unconformities? 16. What is the basic structure of all silicate minerals? What elements make up this structure? 17. How do silicate mineral groups increase in complexity related to bonding of sil ...
monroe border fault, bucks county
... basin formed in fairly high terrain as Africa began its separation from North America about 250 million years ago. Sediment poured in during the Triassic Period as the basin deepened into what is now the Gettysburg-Newark Lowland physiographic section. Coarse-grained sediments accumulated along the ...
... basin formed in fairly high terrain as Africa began its separation from North America about 250 million years ago. Sediment poured in during the Triassic Period as the basin deepened into what is now the Gettysburg-Newark Lowland physiographic section. Coarse-grained sediments accumulated along the ...
Chapter 12.1 - Evidence for Continental Drift
... New scientific equipment allowed scientists to measure the slow, but steady, drift of Earth’s tectonic plates. It was noted that earthquakes and volcanoes appear in certain patterns, which happen to be along the edges of tectonic plates. Mapping of the ocean floor revealed the Mid Atlantic Rid ...
... New scientific equipment allowed scientists to measure the slow, but steady, drift of Earth’s tectonic plates. It was noted that earthquakes and volcanoes appear in certain patterns, which happen to be along the edges of tectonic plates. Mapping of the ocean floor revealed the Mid Atlantic Rid ...
Physical Geology
... of the North American plate • transform plate motions result in the strongest shaking by earthquakes at the Earth's surface ...
... of the North American plate • transform plate motions result in the strongest shaking by earthquakes at the Earth's surface ...
PLATE TECTONICS MAPPING LAB
... 1. Does the location of earthquakes and volcanoes show a pattern? If so, what tectonic process may be responsible? 2. Generally speaking, where are the oceanic ridges located with respect to the landmasses? 3. Where do you find the mountain ranges with respect to the oceanic ridges? Use examples. 4. ...
... 1. Does the location of earthquakes and volcanoes show a pattern? If so, what tectonic process may be responsible? 2. Generally speaking, where are the oceanic ridges located with respect to the landmasses? 3. Where do you find the mountain ranges with respect to the oceanic ridges? Use examples. 4. ...
The Geologic History of Kittitas County
... its unique rock type. These terranes were covered later by volcanic materials and complicated their interpretation. ...
... its unique rock type. These terranes were covered later by volcanic materials and complicated their interpretation. ...
GY111 Introductory Geology - University of South Alabama
... • In New Mexico the Rio Grande river flows within the central rift valley. • The continental lithosphere is anomalously thin – only 15 km thick. This produces a large positive gravity anomaly. • The continental rift zone is marked by bi-modal volcanic activity including the Jemez super volcano. • Mo ...
... • In New Mexico the Rio Grande river flows within the central rift valley. • The continental lithosphere is anomalously thin – only 15 km thick. This produces a large positive gravity anomaly. • The continental rift zone is marked by bi-modal volcanic activity including the Jemez super volcano. • Mo ...
Plate Tectonic Theory Picture Vocabulary
... The boundary between two plates that slide past one another—sudden shifts that result in major geological events such as earthquakes and the release of stored ...
... The boundary between two plates that slide past one another—sudden shifts that result in major geological events such as earthquakes and the release of stored ...
Plate Boundaries - Valhalla High School
... How do oceanic and continental crust compare with regard to thickness and density? continental Density (ESRTs pg 10) thickness ...
... How do oceanic and continental crust compare with regard to thickness and density? continental Density (ESRTs pg 10) thickness ...
Paleoproterozoic Metamorphism in the Northern Wyoming Province
... event has important implications for the assembly of southern Laurentia. Assembly of Southern Laurentia. Based on the number of terranes assembled to form Laurentia, the time required to assemble these terranes (∼150 m.yr.; Hoffman 1988), and the fact that Phanerozoic episodes of plate convergence c ...
... event has important implications for the assembly of southern Laurentia. Assembly of Southern Laurentia. Based on the number of terranes assembled to form Laurentia, the time required to assemble these terranes (∼150 m.yr.; Hoffman 1988), and the fact that Phanerozoic episodes of plate convergence c ...
8th Grade Earth Science
... • When a tectonic plate with continental crust crashes into a tectonic plate with oceanic crust, the oceanic plate slides under the continental plate. • The region where oceanic lithosphere sinks into Asthenosphere is called a subduction zone. ...
... • When a tectonic plate with continental crust crashes into a tectonic plate with oceanic crust, the oceanic plate slides under the continental plate. • The region where oceanic lithosphere sinks into Asthenosphere is called a subduction zone. ...
Chapter 12.1 Notes
... Sediments along the ridge became thicker farther away from the ridge. Paleomagnetism shows that iron-based rocks along the ridges are striped with reversing magnetic fields. Volcanoes are frequently found on boundaries between tectonic plates. ...
... Sediments along the ridge became thicker farther away from the ridge. Paleomagnetism shows that iron-based rocks along the ridges are striped with reversing magnetic fields. Volcanoes are frequently found on boundaries between tectonic plates. ...
Notes_-_Earths_Layers
... Common rock types: granite and rhyolite Rocks are less dense, lighter in color than oceanic crust Oceanic Crust Exists under oceans Average thickness is 7 Km Chemical composition: rocks rich in iron and magnesium silicates Common rock types: basalt, obsidian, gabbro Rocks are more dens ...
... Common rock types: granite and rhyolite Rocks are less dense, lighter in color than oceanic crust Oceanic Crust Exists under oceans Average thickness is 7 Km Chemical composition: rocks rich in iron and magnesium silicates Common rock types: basalt, obsidian, gabbro Rocks are more dens ...
Ophiolite_ppt_presentation
... interior asthenosphere. Rocks are felsic & intermediate igneous rocks like granite & diorite or their equivalents schist & gneiss ...
... interior asthenosphere. Rocks are felsic & intermediate igneous rocks like granite & diorite or their equivalents schist & gneiss ...
The Cache Creek Melange
... At first glance this road cut looks a light color block of rock that is like pretty typical rocks, there are about 2 meters high and a meter some layers and the rock is more across. It stands out considerably or less....well...grey. But to trained from the darker rock that contains eyes these rocks ...
... At first glance this road cut looks a light color block of rock that is like pretty typical rocks, there are about 2 meters high and a meter some layers and the rock is more across. It stands out considerably or less....well...grey. But to trained from the darker rock that contains eyes these rocks ...
Plate Tectonic Notes Layer of Earth 1. inner core
... Wegener used the similar rocks and similar fossils found on different continents ! 5. Early studies of the ocean floor helped develop the theory of plate tectonics because the age of oceanic crust increases with distance from the mid-ocean ridge.! 6. Plate movement is caused by convection in the ast ...
... Wegener used the similar rocks and similar fossils found on different continents ! 5. Early studies of the ocean floor helped develop the theory of plate tectonics because the age of oceanic crust increases with distance from the mid-ocean ridge.! 6. Plate movement is caused by convection in the ast ...
Review sheet for Exam 1, Locations and Maps
... 5. Know the general characteristics of different plate tectonic features; e.g.: Occurrence of earthquakes, their general size, and pattern (deeper in one direction?) Occurrence of volcanic activity (runny, explosive?) Crust types involved (i.e., oceanic and continental) Relative motion (pulling apar ...
... 5. Know the general characteristics of different plate tectonic features; e.g.: Occurrence of earthquakes, their general size, and pattern (deeper in one direction?) Occurrence of volcanic activity (runny, explosive?) Crust types involved (i.e., oceanic and continental) Relative motion (pulling apar ...
True or False 1. Divergent boundaries can only be found in the
... 2. The Grand Tetons of Wyoming is an example of tilted-fault block mountain systems. (a) true (b) false 3. During El Niño years, Columbia River Basin’s streamflows tend to be low. (a) true (b) false 4. The Appalachians are older than the Rockies. (a) true (b) false Multiple choice 1. Terranes refer ...
... 2. The Grand Tetons of Wyoming is an example of tilted-fault block mountain systems. (a) true (b) false 3. During El Niño years, Columbia River Basin’s streamflows tend to be low. (a) true (b) false 4. The Appalachians are older than the Rockies. (a) true (b) false Multiple choice 1. Terranes refer ...
Geologic History of NC
... were also rifted microcontinents of Grenville crust. The Carolina and Avalonia Terranes separated from Gondwana to begin crossing the Iapetus, opening the Rheic Ocean along their trailing edges. Iapetus Ocean seafloor spreading reached the Carolinas from the north and completed the separation of Lau ...
... were also rifted microcontinents of Grenville crust. The Carolina and Avalonia Terranes separated from Gondwana to begin crossing the Iapetus, opening the Rheic Ocean along their trailing edges. Iapetus Ocean seafloor spreading reached the Carolinas from the north and completed the separation of Lau ...
A Brief Geologic History of the Hudson Valley
... Proto-North America, called Laurentia, was much smaller than the present-day continent and located deep in the Southern Hemisphere. The continental crust which today underlies New York State did not exist prior to this time. The area was a shallow sea where sands, clays, and occasional volcanic ash ...
... Proto-North America, called Laurentia, was much smaller than the present-day continent and located deep in the Southern Hemisphere. The continental crust which today underlies New York State did not exist prior to this time. The area was a shallow sea where sands, clays, and occasional volcanic ash ...
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.