Fourth lecture - 16 September, 2015
... The leading physicists of his day, however, were able to show that this was physically not possible. The proposed mechanism was thus discredited, so the entire hypothesis was set aside (by most!) as yet more wishful thinking. ...
... The leading physicists of his day, however, were able to show that this was physically not possible. The proposed mechanism was thus discredited, so the entire hypothesis was set aside (by most!) as yet more wishful thinking. ...
rocks!!
... Contact metamorphism results in metamorphism by primarily heat over small, concentrated areas (generally as a result of contact with magma). Rocks tend to have a lower density due to expansion from heat. ...
... Contact metamorphism results in metamorphism by primarily heat over small, concentrated areas (generally as a result of contact with magma). Rocks tend to have a lower density due to expansion from heat. ...
Reading Science!
... 3 Deep under the Earth’s crust the temperature is so high that it is hot enough to melt rocks. This molten rock called magma will eventually cool and harden forming rock within the crust. Occasionally, magma will find its way through the crust through volcanic action. When this happens the molten ro ...
... 3 Deep under the Earth’s crust the temperature is so high that it is hot enough to melt rocks. This molten rock called magma will eventually cool and harden forming rock within the crust. Occasionally, magma will find its way through the crust through volcanic action. When this happens the molten ro ...
Alabama Physiographic Provinces – Part 1
... important to Alabama’s agricultural economy since the earliest days of settlement. The Fall Line has a special geological significance in that it marks the approximate point where ancient continental rocks are overlapped by much younger sedimentary strata deposited along the northern edge of the Gul ...
... important to Alabama’s agricultural economy since the earliest days of settlement. The Fall Line has a special geological significance in that it marks the approximate point where ancient continental rocks are overlapped by much younger sedimentary strata deposited along the northern edge of the Gul ...
Folding, Thrusting and granitoids along the edge of the Kaapvaal
... series of metasedimentary rocks, with amphibole- biotite gneiss at the base, followed by a calcisilicate rich fine grained quartzite and capped by a coarse cross-bedded feldspathic quartzite. Our investigations have revealed that the area is intensely deformed as a result of NW-SE directed stresses. ...
... series of metasedimentary rocks, with amphibole- biotite gneiss at the base, followed by a calcisilicate rich fine grained quartzite and capped by a coarse cross-bedded feldspathic quartzite. Our investigations have revealed that the area is intensely deformed as a result of NW-SE directed stresses. ...
Paleozoic Plate Tectonics Quiz
... 1) The continents move around on Earth’s surface but they are always centered near the Equator. a) True b) False ...
... 1) The continents move around on Earth’s surface but they are always centered near the Equator. a) True b) False ...
Magma
... 1. Scientists have grouped rocks into three major families they are igneous, sedimentary and metamorphic rocks. Each can be identified by its appearance. *Type I - Igneous rock forms when hot magma or lava cools and solidifies. 2. Magma is melted rock found below the Earth’s crust, where temperature ...
... 1. Scientists have grouped rocks into three major families they are igneous, sedimentary and metamorphic rocks. Each can be identified by its appearance. *Type I - Igneous rock forms when hot magma or lava cools and solidifies. 2. Magma is melted rock found below the Earth’s crust, where temperature ...
Iron Hill Museum Middle School Geology Program Teachers: This
... 3. Why are rocks and minerals not evenly distributed on the Earth? Vocabulary to know: organic, inorganic, mineral, rock, igneous, metamorphic, sedimentary, intrusive, extrusive, luster, cleavage/fracture, convection, process Major understandings: 1. All processes that affect rocks and minerals are ...
... 3. Why are rocks and minerals not evenly distributed on the Earth? Vocabulary to know: organic, inorganic, mineral, rock, igneous, metamorphic, sedimentary, intrusive, extrusive, luster, cleavage/fracture, convection, process Major understandings: 1. All processes that affect rocks and minerals are ...
Earth`s Systems and Resources Quiz 2
... B) sedimentary D) intrusive igneous 3) More than a billion years ago, the continent of Africa hit North America, generating enormous pressure and heat while pushing up the Blue Ridge Mountains to a height of 30,000 feet. Most of these mountains have since been worn away by wind, rain, and the growth ...
... B) sedimentary D) intrusive igneous 3) More than a billion years ago, the continent of Africa hit North America, generating enormous pressure and heat while pushing up the Blue Ridge Mountains to a height of 30,000 feet. Most of these mountains have since been worn away by wind, rain, and the growth ...
Late - to post-orogenic tectonic processes and exhumation
... continental collision zones to rifts The end of a Wilson cycle does not mark the end of the tectonic activity in a mountainbelt. In many orogenic belts high-grade rocks formed by the crustal-thickening during collision get quickly exhumed. In many instances the exhumation processes are too fast to b ...
... continental collision zones to rifts The end of a Wilson cycle does not mark the end of the tectonic activity in a mountainbelt. In many orogenic belts high-grade rocks formed by the crustal-thickening during collision get quickly exhumed. In many instances the exhumation processes are too fast to b ...
new - i. t creative plus
... CONTACT METAMORPHISM • Contact metamorphism • Contact metamorphism occurs locally, at and near the contacts between intrusions and the surrounding country or host rock. The heat introduced by the intrusion controls the metamorphism. • Regional metamorphism • Regional metamorphism is metamorphism tha ...
... CONTACT METAMORPHISM • Contact metamorphism • Contact metamorphism occurs locally, at and near the contacts between intrusions and the surrounding country or host rock. The heat introduced by the intrusion controls the metamorphism. • Regional metamorphism • Regional metamorphism is metamorphism tha ...
• The earth • Musah Saeed Zango • ETS 101
... CONTACT METAMORPHISM • Contact metamorphism • Contact metamorphism occurs locally, at and near the contacts between intrusions and the surrounding country or host rock. The heat introduced by the intrusion controls the metamorphism. • Regional metamorphism • Regional metamorphism is metamorphism tha ...
... CONTACT METAMORPHISM • Contact metamorphism • Contact metamorphism occurs locally, at and near the contacts between intrusions and the surrounding country or host rock. The heat introduced by the intrusion controls the metamorphism. • Regional metamorphism • Regional metamorphism is metamorphism tha ...
Miocene volcanic rocks and conglomerates, SE California: Evidence
... system. Geochemical data indicate that the clasts in the lower member of the conglomerate were derived from the progressive unroofing of the underlying early Miocene volcanics. These observations suggest that the Chocolate Mountains anticlinorium is a long-lived feature that may have been reactivate ...
... system. Geochemical data indicate that the clasts in the lower member of the conglomerate were derived from the progressive unroofing of the underlying early Miocene volcanics. These observations suggest that the Chocolate Mountains anticlinorium is a long-lived feature that may have been reactivate ...
Igneous Rocks
... distinctive composition. Until the advent of the concept of global tectonics, this was a problematic topic. Global tectonics offers an excellent concept how melts are being generated. In a nutshell, at mid-ocean ridges, mafic melt wells up and emerges on the sea floor as the ocean plates are spreadi ...
... distinctive composition. Until the advent of the concept of global tectonics, this was a problematic topic. Global tectonics offers an excellent concept how melts are being generated. In a nutshell, at mid-ocean ridges, mafic melt wells up and emerges on the sea floor as the ocean plates are spreadi ...
Document
... Plate Tectonics- This is a geological theory which says that the surface of Earth is broken into large plates. Transform- Two of Earth’s plates moving horizontally against each other- An example is the San Andreas Fault in California. Extinct volcanoes have not erupted in recorded history and ...
... Plate Tectonics- This is a geological theory which says that the surface of Earth is broken into large plates. Transform- Two of Earth’s plates moving horizontally against each other- An example is the San Andreas Fault in California. Extinct volcanoes have not erupted in recorded history and ...
Partial melting
... move apart, the rock in the seafloor grows older as its distance from the rift zone increases, and as it ages, it cools and becomes denser and is buried under marine sediments that are deposited on the seafloor. ...
... move apart, the rock in the seafloor grows older as its distance from the rift zone increases, and as it ages, it cools and becomes denser and is buried under marine sediments that are deposited on the seafloor. ...
strike-slip fault
... Fault-Block Mountains • mountains formed when normal faults cause large blocks of rocks to slip down due to tension ...
... Fault-Block Mountains • mountains formed when normal faults cause large blocks of rocks to slip down due to tension ...
Deformation of the Crust
... crust into blocks and one block slips downward relative to the surrounding blocks. • Occur with Fault-Block Mountains. – Basin and Range Province, Western U.S. ...
... crust into blocks and one block slips downward relative to the surrounding blocks. • Occur with Fault-Block Mountains. – Basin and Range Province, Western U.S. ...
Mineral – Naturally formed solids that are not made from living
... Rock Cycle – Process by which new rocks formed from old rock material. Driven by heat, pressure, weathering, erosion, & deposition. Three basic types of rock are: sedimentary, igneous, and metamorphic. Magma – Hot liquid (molten) located within Earth’s surface. Tends to rise since less dense than su ...
... Rock Cycle – Process by which new rocks formed from old rock material. Driven by heat, pressure, weathering, erosion, & deposition. Three basic types of rock are: sedimentary, igneous, and metamorphic. Magma – Hot liquid (molten) located within Earth’s surface. Tends to rise since less dense than su ...
Exam review questions 2008 2
... 46. Sedimentary rock is classified based on________________________________________________________ _________________________________________________________________________________________. 47. The three types of sedimentary rock are _______________________________________________________ ...
... 46. Sedimentary rock is classified based on________________________________________________________ _________________________________________________________________________________________. 47. The three types of sedimentary rock are _______________________________________________________ ...
The Hadean Outline •Theories on Formation of Solar System, Universe
... – Big enough to trap gases • Volitles from Magma Lake – Easily escaped to surface – Condensed=form liquid water • Comets • Salt from chemical weathering of rocks: – on land – shoreline Early Continental Crust •Large rock bodies welded along metamorphic zones (“greenstone belts”) •Podlike bodies –Mos ...
... – Big enough to trap gases • Volitles from Magma Lake – Easily escaped to surface – Condensed=form liquid water • Comets • Salt from chemical weathering of rocks: – on land – shoreline Early Continental Crust •Large rock bodies welded along metamorphic zones (“greenstone belts”) •Podlike bodies –Mos ...
DESTRUCTIVE CONVERGENT PLATE MARGINS: SUBDUCTION
... Descending slab heated by conduction from hot mantle ...
... Descending slab heated by conduction from hot mantle ...
Plate Tectonics
... Rock formations and Coal fields in Africa line up with matching formations in South America Folded Mountain chain stretches across South Africa and matches one in Argentina Similar rocks and structures of the Appalachian Mountains can be found in the British Isles and Scandinavia ...
... Rock formations and Coal fields in Africa line up with matching formations in South America Folded Mountain chain stretches across South Africa and matches one in Argentina Similar rocks and structures of the Appalachian Mountains can be found in the British Isles and Scandinavia ...
GG 101 Fall 2010 Exam 1 September 23, 2010
... B) In a tropical rainforest, the forest-floor litter is often burned during the dry season. C) Less humus is produced in the cool, temperate forest but the rate of decay and oxidation is slower than in a tropical rainforest. D) No humus is produced in a tropical rainforest because the B horizon is p ...
... B) In a tropical rainforest, the forest-floor litter is often burned during the dry season. C) Less humus is produced in the cool, temperate forest but the rate of decay and oxidation is slower than in a tropical rainforest. D) No humus is produced in a tropical rainforest because the B horizon is p ...
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.