Plate Tectonics - Boone County Schools
... ago, Pangaea split into two big pieces, called Laurasia and Gondwana. • 65 million years ago, Laurasia and Gondwana split into the current continents. http://volcano.und.nodak.edu/vwdocs/vwlessons/plate_tectonics/part2.html ...
... ago, Pangaea split into two big pieces, called Laurasia and Gondwana. • 65 million years ago, Laurasia and Gondwana split into the current continents. http://volcano.und.nodak.edu/vwdocs/vwlessons/plate_tectonics/part2.html ...
Plate Tectonics
... A rift valley forms where two continental and continental plate move away from each other. ...
... A rift valley forms where two continental and continental plate move away from each other. ...
ch07 - earthjay science
... continental crust and float each in a tube of molasses, which would float higher? a. Neither, they would float at the same level b. Ocean crust c. Continental crust d. Neither, both would sink e. None of the above ...
... continental crust and float each in a tube of molasses, which would float higher? a. Neither, they would float at the same level b. Ocean crust c. Continental crust d. Neither, both would sink e. None of the above ...
Document
... sediment, that is they are regions where erosion and weathering prevail. Continents are ~4 by old Ocean floors are regions where net sedimentation and volcanism prevail. Oceans are no more that 200 Myr old ...
... sediment, that is they are regions where erosion and weathering prevail. Continents are ~4 by old Ocean floors are regions where net sedimentation and volcanism prevail. Oceans are no more that 200 Myr old ...
ch20_Oceans_online_notes
... sediment, that is they are regions where erosion and weathering prevail. Continents are ~4 by old Ocean floors are regions where net sedimentation and volcanism prevail. Oceans are no more that 200 Myr old ...
... sediment, that is they are regions where erosion and weathering prevail. Continents are ~4 by old Ocean floors are regions where net sedimentation and volcanism prevail. Oceans are no more that 200 Myr old ...
Document
... of a three-way split in the crust allowing massive lava flows. The split was caused by an upwelling of magma that broke the crust in three directions and poured out lava over hundreds of square miles of Africa and South America. The rocks of the triple junction, which today is the west central porti ...
... of a three-way split in the crust allowing massive lava flows. The split was caused by an upwelling of magma that broke the crust in three directions and poured out lava over hundreds of square miles of Africa and South America. The rocks of the triple junction, which today is the west central porti ...
Earth Structure and Plate Tectonics
... plates push together. ◦ They are also called destructive boundaries because movements along these destroy crust. ...
... plates push together. ◦ They are also called destructive boundaries because movements along these destroy crust. ...
Doug - Cal State LA - Instructional Web Server
... 1910 American physicist Taylor proposes concept of continental drift to explain formation of mountain belts. 1912, Wegener names the ancient super-continents "Pangea," based on evidence from geology, climatology and paleontology. Supporting evidence for Continental Drift Hypothesis Geographic fit ...
... 1910 American physicist Taylor proposes concept of continental drift to explain formation of mountain belts. 1912, Wegener names the ancient super-continents "Pangea," based on evidence from geology, climatology and paleontology. Supporting evidence for Continental Drift Hypothesis Geographic fit ...
Dynamic Earth
... Continental Drift Evidence • Researchers noted geographic fit of continents • e.g. Africa and S. America • Atlantic formed by separation of Africa from S. America • Seuss, 1885, proposed super continent by studying fossils, rocks, mountains • Wegener and Taylor, early 1900’s, proposed continental d ...
... Continental Drift Evidence • Researchers noted geographic fit of continents • e.g. Africa and S. America • Atlantic formed by separation of Africa from S. America • Seuss, 1885, proposed super continent by studying fossils, rocks, mountains • Wegener and Taylor, early 1900’s, proposed continental d ...
Chapter One
... 3) Continents were exposed to different climates. (Example: deep scratches in rock showed that glaciers once covered South Africa. South Africa was closer to the South Pole. ...
... 3) Continents were exposed to different climates. (Example: deep scratches in rock showed that glaciers once covered South Africa. South Africa was closer to the South Pole. ...
Lancaster_Gold15 - Portsmouth Research Portal
... processes that include the start of ‘modern’ plate tectonics and the development of supercontinents. However, these same processes can also destroy or rework substantial volumes of crust, and the oldest extant Archaean terrane is only ~3.9 Ga. While bulk isotopic techniques can provide considerable ...
... processes that include the start of ‘modern’ plate tectonics and the development of supercontinents. However, these same processes can also destroy or rework substantial volumes of crust, and the oldest extant Archaean terrane is only ~3.9 Ga. While bulk isotopic techniques can provide considerable ...
Earth`s Interior
... broken into plates that are in motion; moving relative to one another, sliding on the underlying asthenosphere. • There are three types of plate movement: – Divergent boundaries – Convergent boundaries – Transform boundaries ...
... broken into plates that are in motion; moving relative to one another, sliding on the underlying asthenosphere. • There are three types of plate movement: – Divergent boundaries – Convergent boundaries – Transform boundaries ...
Plates on the Move
... together in a single large land mass he called Pangea (meaning “all land” in Greek). • He proposed that Pangea had split apart and the continents had moved gradually to their present positions - a process that became known as continental drift. ...
... together in a single large land mass he called Pangea (meaning “all land” in Greek). • He proposed that Pangea had split apart and the continents had moved gradually to their present positions - a process that became known as continental drift. ...
Splitting continents - Workspace
... critical. It is not simply the stretching rate that matters, but rather the relative timings of the phases of extension and arrival of hot material beneath the thinning lithosphere. In the North Atlantic, we found that earlier extension focused the hot upwelling mantle, allowing it to reach shallow ...
... critical. It is not simply the stretching rate that matters, but rather the relative timings of the phases of extension and arrival of hot material beneath the thinning lithosphere. In the North Atlantic, we found that earlier extension focused the hot upwelling mantle, allowing it to reach shallow ...
deep-ocean trench
... Wegener’s day (early 1900’s) not accept his theory? He could not provide the force that caused the continents to move. They felt it would have been impossible for huge solid chunks of land to have plowed through the ocean floor. ...
... Wegener’s day (early 1900’s) not accept his theory? He could not provide the force that caused the continents to move. They felt it would have been impossible for huge solid chunks of land to have plowed through the ocean floor. ...
Transform Boundary
... • The fossil record supports and gives credence to the theories of continental drift and plate tectonics. • Wegener hypothesized that there was an original, gigantic supercontinent 200 million years ago, which he named Pangaea, meaning "All-earth". Pangaea was a supercontinent consisting of all of E ...
... • The fossil record supports and gives credence to the theories of continental drift and plate tectonics. • Wegener hypothesized that there was an original, gigantic supercontinent 200 million years ago, which he named Pangaea, meaning "All-earth". Pangaea was a supercontinent consisting of all of E ...
PS 2-6-08 - elyceum-beta
... • The oldest ocean rock is farthest away from the ridges • The coldest and most dense rock is farthest away from the ridges ...
... • The oldest ocean rock is farthest away from the ridges • The coldest and most dense rock is farthest away from the ridges ...
Intro to Earth
... a variety of geologic evidence; however, this theory did not adequately explain the forces that caused the plates to move Major breakthrough in the development of a complete theory of the earth’s dynamics occurred in the early 1960’s, when the topography of the ocean floors was mapped and magnetic a ...
... a variety of geologic evidence; however, this theory did not adequately explain the forces that caused the plates to move Major breakthrough in the development of a complete theory of the earth’s dynamics occurred in the early 1960’s, when the topography of the ocean floors was mapped and magnetic a ...
Continental - itslearning
... But the biggest problem was that Wegner couldn’t provide an explanation for how the continents were able to move that made sense. He said the continents moved due to the earth’s rotation… ...
... But the biggest problem was that Wegner couldn’t provide an explanation for how the continents were able to move that made sense. He said the continents moved due to the earth’s rotation… ...
Continental Drift & Seafloor Spreading
... Theory of Continental Drift Maps- “puzzle pieces” could make Super-continent Wegener called it Pangaea Ocean called Panthalassa He thought it might have taken 200 million years for the continents to split and drift apart to today’s position ...
... Theory of Continental Drift Maps- “puzzle pieces” could make Super-continent Wegener called it Pangaea Ocean called Panthalassa He thought it might have taken 200 million years for the continents to split and drift apart to today’s position ...
Unit 2 Test
... Feature at the base of a continent composed of sediments eroded from the continent Shallowest part of the continental margin Steepest part of the continental margin How oceanic crust compares to continental crust What continental crust is made of Large, extinct volcano with a flat top Origin of the ...
... Feature at the base of a continent composed of sediments eroded from the continent Shallowest part of the continental margin Steepest part of the continental margin How oceanic crust compares to continental crust What continental crust is made of Large, extinct volcano with a flat top Origin of the ...
PowerPoint - Cal State LA - Instructional Web Server
... – e.g. Africa and S. America – Atlantic formed by separation of Africa from S. America Seuss, 1885, proposed super continent by studying fossils, rocks, mountains Wegener and Taylor, early 1900’s, proposed continental drift and Pangaea Evidence supporting the idea that the continents had drift ...
... – e.g. Africa and S. America – Atlantic formed by separation of Africa from S. America Seuss, 1885, proposed super continent by studying fossils, rocks, mountains Wegener and Taylor, early 1900’s, proposed continental drift and Pangaea Evidence supporting the idea that the continents had drift ...
continental drift - East Hanover Township School District
... together in a single large land mass he called Pangea (meaning “all land” in Greek). • He proposed that Pangea had split apart and the continents had moved gradually to their present positions - a process that became known as continental drift. ...
... together in a single large land mass he called Pangea (meaning “all land” in Greek). • He proposed that Pangea had split apart and the continents had moved gradually to their present positions - a process that became known as continental drift. ...
Supercontinent
In geology, a supercontinent is the assembly of most or all of the Earth's continental blocks or cratons to form a single large landmass. However, the definition of a supercontinent can be ambiguous. Many tectonicists such as P.F. Hoffman (1999) use the term ""supercontinent"" to mean ""a clustering of nearly all continents"". This definition leaves room for interpretation when labeling a continental body and is easier to apply to Precambrian times. Using the first definition provided here, Gondwana (aka Gondwanaland) is not considered a supercontinent, because the landmasses of Baltica, Laurentia and Siberia also existed at the same time but physically separate from each other. The landmass of Pangaea is the collective name describing all of these continental masses when they were in a close proximity to one another. This would classify Pangaea as a supercontinent. According to the definition by Rogers and Santosh (2004), a supercontinent does not exist today. Supercontinents have assembled and dispersed multiple times in the geologic past (see table). The positions of continents have been accurately determined back to the early Jurassic. However, beyond 200 Ma, continental positions are much less certain.