Plate collision and mounting building separated by long periods of
... Myr after the end of collision. In the Northern Tien Shan collision with intrusion of large granitic plutons occurred in the Late Ordovician-Middle Devonian. In the Southern Tien Shan these phenomena refer to the Late Carboniferous and Late Jurassic. In both regions collision was not accompanied by ...
... Myr after the end of collision. In the Northern Tien Shan collision with intrusion of large granitic plutons occurred in the Late Ordovician-Middle Devonian. In the Southern Tien Shan these phenomena refer to the Late Carboniferous and Late Jurassic. In both regions collision was not accompanied by ...
Geology (Chernicoff) - GEO
... A) The youngest seamount will be the farthest from the hot spot, and an arrow from the seamount to the hot spot indicates the direction of plate movement. B) The oldest seamount will be the farthest from the hot spot, and an arrow from the seamount to the hot spot indicates the direction of plate mo ...
... A) The youngest seamount will be the farthest from the hot spot, and an arrow from the seamount to the hot spot indicates the direction of plate movement. B) The oldest seamount will be the farthest from the hot spot, and an arrow from the seamount to the hot spot indicates the direction of plate mo ...
Ch 10 ppt
... • Evidence for the Taconic orogeny • The remnants of the mountains The remains of a large clastic wedge, • detrital sediments adjacent to an uplifted area • thinner and finer grained away from the source area, • eventually grading into the carbonate cratonic facies • The clastic wedge resulting from ...
... • Evidence for the Taconic orogeny • The remnants of the mountains The remains of a large clastic wedge, • detrital sediments adjacent to an uplifted area • thinner and finer grained away from the source area, • eventually grading into the carbonate cratonic facies • The clastic wedge resulting from ...
File
... 9. Compared to rocks in the Earth’s crust, rocks in the mantle are more what? a. Mineral-rich b. Light c. Dense 10. What are tectonic plates? a. Pieces of the lithosphere that move on top of the asthenosphere b. Broken pieces of rocks that have been weathered away over time c. Small mineral fragment ...
... 9. Compared to rocks in the Earth’s crust, rocks in the mantle are more what? a. Mineral-rich b. Light c. Dense 10. What are tectonic plates? a. Pieces of the lithosphere that move on top of the asthenosphere b. Broken pieces of rocks that have been weathered away over time c. Small mineral fragment ...
The Layers of Earth
... filled with planet forming material that revolved around This is known as the Accretion Disk ...
... filled with planet forming material that revolved around This is known as the Accretion Disk ...
Lec 5
... meeting of these two plates before and after their collision. The reference points (small squares) show the amount of uplift of an imaginary point in the Earth's crust during this mountain-building process. ...
... meeting of these two plates before and after their collision. The reference points (small squares) show the amount of uplift of an imaginary point in the Earth's crust during this mountain-building process. ...
Presentation
... and the Americas, are Jurassic in age, showing the time of formation of the Atlantic Ocean. ...
... and the Americas, are Jurassic in age, showing the time of formation of the Atlantic Ocean. ...
Chapter 7 Section 2 Pages 198-201
... and the Americas, are Jurassic in age, showing the time of formation of the Atlantic Ocean. ...
... and the Americas, are Jurassic in age, showing the time of formation of the Atlantic Ocean. ...
4/21/2012- Sedimentary Rocks, Metamorphic Rocks, and The Rock
... • Mechanical weathering processes break down rocks into smaller clasts. • When clasts are transported to new locations, they often become rounded before being deposited. • When clasts are loose on Earth’s surface, they don’t fit together perfectly. The empty space in between the grains is called por ...
... • Mechanical weathering processes break down rocks into smaller clasts. • When clasts are transported to new locations, they often become rounded before being deposited. • When clasts are loose on Earth’s surface, they don’t fit together perfectly. The empty space in between the grains is called por ...
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 ...
South Carolina Electric & Gas COL Application Part 3 – Environmental Report 2.6
... granodiorite, which yielded Rb-Sr and K-Ar ages of about 300 million years from unweathered samples obtained from the excavation for Unit 1 (Dames & Moore 1974). Borehole data from the area of proposed Units 2 and 3 indicates that the Winnsboro plutonic complex at the site includes a range of igneou ...
... granodiorite, which yielded Rb-Sr and K-Ar ages of about 300 million years from unweathered samples obtained from the excavation for Unit 1 (Dames & Moore 1974). Borehole data from the area of proposed Units 2 and 3 indicates that the Winnsboro plutonic complex at the site includes a range of igneou ...
The Theory of Plate Tectonics Homework
... 4. Describe what happens when (a) two plates carrying oceanic crust collide, (b) two plates carrying continental crust collide, and (c) a plate carrying oceanic crust collides with a plate carrying continental crust. 5. Explain what force caused the movement of the continents from one supercontinent ...
... 4. Describe what happens when (a) two plates carrying oceanic crust collide, (b) two plates carrying continental crust collide, and (c) a plate carrying oceanic crust collides with a plate carrying continental crust. 5. Explain what force caused the movement of the continents from one supercontinent ...
study guide – unit 9 – plate tectonics
... Continental “fit” : coastlines match up Rocks, minerals and fossils: similar age and composition ...
... Continental “fit” : coastlines match up Rocks, minerals and fossils: similar age and composition ...
Chapter 6 Study Guide
... 22) What is the process by which the shape of a rock changes in response to stress? ...
... 22) What is the process by which the shape of a rock changes in response to stress? ...
No Slide Title - physicalallen
... • Continent cores that are the oldest and most deformed rocks on cont. • North American craton where exposed is called the Canadian Shield, rest is below surface • The N.A. craton shows the shape of continent approximately 2.5 bya • Continent has grown since ...
... • Continent cores that are the oldest and most deformed rocks on cont. • North American craton where exposed is called the Canadian Shield, rest is below surface • The N.A. craton shows the shape of continent approximately 2.5 bya • Continent has grown since ...
mountain belt
... • Fold and thrust belts (composed of many folds and reverse faults) indicate crustal shortening (and thickening) produced by compression – Common at convergent boundaries – Typically contain large amounts of metamorphic rock ...
... • Fold and thrust belts (composed of many folds and reverse faults) indicate crustal shortening (and thickening) produced by compression – Common at convergent boundaries – Typically contain large amounts of metamorphic rock ...
How do we know if a rock is intrusive or extrusive?
... – Intrusive Rocks – are typically coarse grained – Extrusive Rocks – are typically fine grained • Pyroclastic Rocks – are typically made of volcanic glass and/or pieces of pre-existing rocks ...
... – Intrusive Rocks – are typically coarse grained – Extrusive Rocks – are typically fine grained • Pyroclastic Rocks – are typically made of volcanic glass and/or pieces of pre-existing rocks ...
What Happens to Create the Lode?
... the original igneous rock. Differences among successive layers of sedimentary rock indicate changes to the environment which have occurred over time. Sedimentary rocks can contain fossils because, unlike most igneous and metamorphic rocks, they form at temperatures and pressures that do not destroy ...
... the original igneous rock. Differences among successive layers of sedimentary rock indicate changes to the environment which have occurred over time. Sedimentary rocks can contain fossils because, unlike most igneous and metamorphic rocks, they form at temperatures and pressures that do not destroy ...
Obj - davis.k12.ut.us
... 2. Divergent boundary – are the boundaries that move away from each other. The plate edges are pulled apart which causes: 1. rift valley – the crust reaches elastic limit and breaks creating two new edges which move away, causing the middle portion to fall, 2. depression – the crust stretches but do ...
... 2. Divergent boundary – are the boundaries that move away from each other. The plate edges are pulled apart which causes: 1. rift valley – the crust reaches elastic limit and breaks creating two new edges which move away, causing the middle portion to fall, 2. depression – the crust stretches but do ...
Metamorphic Rock
... One way rock can undergo metamorphism is by being heated by nearby magma. When magma moves through the crust, the magma heats the surrounding rock and changes it. Some minerals in the surrounding rock are changed into other minerals by this increase in temperature. The greatest change takes place wh ...
... One way rock can undergo metamorphism is by being heated by nearby magma. When magma moves through the crust, the magma heats the surrounding rock and changes it. Some minerals in the surrounding rock are changed into other minerals by this increase in temperature. The greatest change takes place wh ...
GE1632013UFINALEXAM
... Rocks in this region of the Earth deform by brittle fracture lithosphere asthenosphere mantle low-velocity zone ...
... Rocks in this region of the Earth deform by brittle fracture lithosphere asthenosphere mantle low-velocity zone ...
Geology Bridge course - University of Mumbai
... The University of Mumbai has Geology as a full Six units course i.e. a graduate student from the Mumbai university does 4 geology courses in FY, 6 geology courses in SY and 8 geology courses in TY. As students from other universities may not have the requisite exposure to the subject, they find it d ...
... The University of Mumbai has Geology as a full Six units course i.e. a graduate student from the Mumbai university does 4 geology courses in FY, 6 geology courses in SY and 8 geology courses in TY. As students from other universities may not have the requisite exposure to the subject, they find it d ...
Stone Walls: Stories from Minnesota`s Geologic Past
... rock with a mineralogy suggesting it was originally a granite that slowly crystallized from a silica-rich magma tens of kilometers beneath the Earth’s surface. (Although the age is not disputed, there is some debate about some of the specifics regarding the “parentage” of the Morton Gneiss. This sho ...
... rock with a mineralogy suggesting it was originally a granite that slowly crystallized from a silica-rich magma tens of kilometers beneath the Earth’s surface. (Although the age is not disputed, there is some debate about some of the specifics regarding the “parentage” of the Morton Gneiss. This sho ...
Algoman orogeny
The Algoman orogeny, known as the Kenoran orogeny in Canada, was an episode of mountain-building (orogeny) during the Late Archean Eon that involved repeated episodes of continental collisions, compressions and subductions. The Superior province and the Minnesota River Valley terrane collided about 2,700 to 2,500 million years ago. The collision folded the Earth's crust and produced enough heat and pressure to metamorphose the rock. Blocks were added to the Superior province along a 1,200 km (750 mi) boundary that stretches from present-day eastern South Dakota into the Lake Huron area. The Algoman orogeny brought the Archaen Eon to a close, about 2,500 million years ago; it lasted less than 100 million years and marks a major change in the development of the earth’s crust.The Canadian shield contains belts of metavolcanic and metasedimentary rocks formed by the action of metamorphism on volcanic and sedimentary rock. The areas between individual belts consist of granites or granitic gneisses that form fault zones. These two types of belts can be seen in the Wabigoon, Quetico and Wawa subprovinces; the Wabigoon and Wawa are of volcanic origin and the Quetico is of sedimentary origin. These three subprovinces lie linearly in southwestern- to northeastern-oriented belts about 140 km (90 mi) wide on the southern portion of the Superior Province.The Slave province and portions of the Nain province were also affected. Between about 2,000 and 1,700 million years ago these combined with the Sask and Wyoming cratons to form the first supercontinent, the Kenorland supercontinent.