Continental Drift
... mountains in NW Europe and if they were fitted together would form a single continuous mountain belt. ...
... mountains in NW Europe and if they were fitted together would form a single continuous mountain belt. ...
History of Continental Drift, part 1
... The only explanation is that continents used to be somewhere else ...
... The only explanation is that continents used to be somewhere else ...
Name _________________________________ ... 38. How can volcanoes be destructive?
... were all joined as a single landmass. 41. What caused the jigsaw puzzle effect to occur? ...
... were all joined as a single landmass. 41. What caused the jigsaw puzzle effect to occur? ...
SGES 1302 Lecture4
... continental drift from the first half of the 20th century and the concept of seafloor spreading developed during the 1960s. The outermost part of the Earth's interior is made up of two layers: the lithosphere, & asthenosphere. Although solid, the asthenosphere has relatively low viscosity and shear ...
... continental drift from the first half of the 20th century and the concept of seafloor spreading developed during the 1960s. The outermost part of the Earth's interior is made up of two layers: the lithosphere, & asthenosphere. Although solid, the asthenosphere has relatively low viscosity and shear ...
U4-T1.1-Wegeners Continental Drift Theory
... 1) 225 Million years ago, supercontinent called Pangaea. 2) 200 Million years ago, supercontinent split to form two main land masses. Laurasia in the north and Gondwanaland in the south. 3) Laurasia consisted of; Asia, Europe, and North America. 4) Gondwanaland consisted of; Africa, Australia, Antar ...
... 1) 225 Million years ago, supercontinent called Pangaea. 2) 200 Million years ago, supercontinent split to form two main land masses. Laurasia in the north and Gondwanaland in the south. 3) Laurasia consisted of; Asia, Europe, and North America. 4) Gondwanaland consisted of; Africa, Australia, Antar ...
Unit 5: Plate Tectonics Review Guide Things you need to know for
... Theory of Continental Drift and Pangaea What are layers of earth and what the Lithosphereic plates move on What are the two types of lithospheric plates? Explain the difference between each (at least 3 differences)? What types of rocks make up continental and oceanic crust? What is a mid-ocean ridge ...
... Theory of Continental Drift and Pangaea What are layers of earth and what the Lithosphereic plates move on What are the two types of lithospheric plates? Explain the difference between each (at least 3 differences)? What types of rocks make up continental and oceanic crust? What is a mid-ocean ridge ...
SPQ Module 4 – Very Cold Dinosaurs
... It might help Ray, Richard and Kevin beat the speed record to the South Pole if they were pursued by a 25 foot carnivorous dinosaur. Although this seems like a crazy idea, it is not as crazy as one might think. The story starts in 1912 with a man in Germany named Alfred Wegener (1880 – 1930) who mad ...
... It might help Ray, Richard and Kevin beat the speed record to the South Pole if they were pursued by a 25 foot carnivorous dinosaur. Although this seems like a crazy idea, it is not as crazy as one might think. The story starts in 1912 with a man in Germany named Alfred Wegener (1880 – 1930) who mad ...
Continental drift and plate tectonics
... • At some plate boundaries, the plates are moving apart (diverging). At these boundaries, mantle material is forming new crust, which spreads and forces the plates apart. • At other boundaries, the plates are sliding under each other. At these places, lithosphere material melts into the top of the m ...
... • At some plate boundaries, the plates are moving apart (diverging). At these boundaries, mantle material is forming new crust, which spreads and forces the plates apart. • At other boundaries, the plates are sliding under each other. At these places, lithosphere material melts into the top of the m ...
earth
... – Igneous: cooled magma/lava – Sedimentary: particles deposited by water flow. Organic/inorganic matter (fossils) – Metamorphic: as layers build up, this rock is formed when pressure and heat become great enough to change the rock chemically • The rock cycle is completed through the tectonic process ...
... – Igneous: cooled magma/lava – Sedimentary: particles deposited by water flow. Organic/inorganic matter (fossils) – Metamorphic: as layers build up, this rock is formed when pressure and heat become great enough to change the rock chemically • The rock cycle is completed through the tectonic process ...
Lecture 10 Plate Tectonics i
... Seafloor spreading in detail Harry Hess: Convection currents in mantle Seafloor spreading occurs along relatively narrow zones, called rift zones, located at the crests of ocean ridges As plates pulled apart, low pressure causes mantle mellting,magma moves into fractures and makes new oceanic litho ...
... Seafloor spreading in detail Harry Hess: Convection currents in mantle Seafloor spreading occurs along relatively narrow zones, called rift zones, located at the crests of ocean ridges As plates pulled apart, low pressure causes mantle mellting,magma moves into fractures and makes new oceanic litho ...
Unit 1 Powerpoint
... difference between oceanic & continental crust convection currents seismic waves data as evidence plate tectonics & major plates types of plate boundaries seafloor spreading post-Pangaea plate movement evidence ...
... difference between oceanic & continental crust convection currents seismic waves data as evidence plate tectonics & major plates types of plate boundaries seafloor spreading post-Pangaea plate movement evidence ...
2 & 3- Mountain Building and How Australia has - Fellows
... Gradually Laurasia and Gondwana separated to form what we ...
... Gradually Laurasia and Gondwana separated to form what we ...
Continental Drift and Plate Tectonics
... into one supercontinent and have since drifted to their current positions • Alfred Wegner developed the idea in ...
... into one supercontinent and have since drifted to their current positions • Alfred Wegner developed the idea in ...
2008 EXAM 1 With Answers
... 3) Each question constitutes 4 points each, 100 points total each exam, weighted as above. 4) Only one correct answer to each question. 5) Suggestions: Look for KEY words in any question. Answer all the ones you're sure of, then go back and work on the rest. ...
... 3) Each question constitutes 4 points each, 100 points total each exam, weighted as above. 4) Only one correct answer to each question. 5) Suggestions: Look for KEY words in any question. Answer all the ones you're sure of, then go back and work on the rest. ...
Plate Tectonics - Noadswood Science
... Impossible! continents can’t move the force needed would be so big it would stop the earth rotating. They have the same fossils because there must have once been land bridges that joined them. The land bridges must have been flooded over time. ...
... Impossible! continents can’t move the force needed would be so big it would stop the earth rotating. They have the same fossils because there must have once been land bridges that joined them. The land bridges must have been flooded over time. ...
Activity 2A- Plates and Gates
... Earth's uppermost layer of Earth’s crust is fragmented into about a dozen large and small plates that are moving relative to one another as they float atop molten material below. As people began to see the shape of the continents on the Earth, they believed that the present-day positions were part o ...
... Earth's uppermost layer of Earth’s crust is fragmented into about a dozen large and small plates that are moving relative to one another as they float atop molten material below. As people began to see the shape of the continents on the Earth, they believed that the present-day positions were part o ...
Plate Tectonics
... Earths crust is not a uniform covering, its made of 8 major and minor plates – North American/Pacific/Juan de Fuca plate As these plates move, the continents are rafted along passively (like a piggyback ride on top of Aesthenosphere, which is on top of the mantle 1960’s the Theory of Continental Dri ...
... Earths crust is not a uniform covering, its made of 8 major and minor plates – North American/Pacific/Juan de Fuca plate As these plates move, the continents are rafted along passively (like a piggyback ride on top of Aesthenosphere, which is on top of the mantle 1960’s the Theory of Continental Dri ...
Plate Tectonics
... 3. Rock Clues- Similar rock types of same age found in mountains of England and Eastern U.S. 4. Glacial Clues- Evidence of glaciers exist in areas that are too warm for them now Wegener died in 1930, scientific community made a joke of his work. ...
... 3. Rock Clues- Similar rock types of same age found in mountains of England and Eastern U.S. 4. Glacial Clues- Evidence of glaciers exist in areas that are too warm for them now Wegener died in 1930, scientific community made a joke of his work. ...
plate tectonics post-test
... 4. Similar types of rocks found on different continents 5. Evidence of the same climatic conditions on different continents ...
... 4. Similar types of rocks found on different continents 5. Evidence of the same climatic conditions on different continents ...
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.. ...
Plate Tectonics
... You probably wouldn't recognize the Earth if you could see it 225 million years ago. Back then, all the major continents formed one giant supercontinent, called Pangaea. Perhaps initiated by heat building up underneath the vast continent, Pangaea began to rift, or split apart, around 200 million yea ...
... You probably wouldn't recognize the Earth if you could see it 225 million years ago. Back then, all the major continents formed one giant supercontinent, called Pangaea. Perhaps initiated by heat building up underneath the vast continent, Pangaea began to rift, or split apart, around 200 million yea ...
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.