MSWord file
... state of magmatic cooling at which mafic minerals (producing Gabbro-Basalt) and Felsic minerals (producing Granite-Rhyolite) are crystallized. Mafic rocks (Gabbro-Basalt) predominantly contain ferromagnesian minerals (2) (olivine, pyroxene and Ca plag.), which crystallize at higher magma temperature ...
... state of magmatic cooling at which mafic minerals (producing Gabbro-Basalt) and Felsic minerals (producing Granite-Rhyolite) are crystallized. Mafic rocks (Gabbro-Basalt) predominantly contain ferromagnesian minerals (2) (olivine, pyroxene and Ca plag.), which crystallize at higher magma temperature ...
Earth Sciences 089G MIDTERM EXAMINATION MARKING KEY Part
... (1) and therefore solidify earlier in the magma cooling process (1). Felsic rocks (Granite-Rhyolite) predominantly contain felsic minerals (quartz, K feldspar, micas, Na plag.) (2), which crystallize at lower magma temperatures (1), and therefore, at later phases of magma cooling (1). 3. Describe th ...
... (1) and therefore solidify earlier in the magma cooling process (1). Felsic rocks (Granite-Rhyolite) predominantly contain felsic minerals (quartz, K feldspar, micas, Na plag.) (2), which crystallize at lower magma temperatures (1), and therefore, at later phases of magma cooling (1). 3. Describe th ...
cenozoic1
... Valley and Ridge The deformed and faulted sedimentary rocks of this province were deposited at the same time as the flat lying rocks of the Appalachian Plateau. ...
... Valley and Ridge The deformed and faulted sedimentary rocks of this province were deposited at the same time as the flat lying rocks of the Appalachian Plateau. ...
File
... Result from the VERY RAPID cooling of magma once the volcano erupts. The lava cools instantly through contact with air and water. The minerals do not have time to form, so they are microscopic. Examples : obsidian, basalt ...
... Result from the VERY RAPID cooling of magma once the volcano erupts. The lava cools instantly through contact with air and water. The minerals do not have time to form, so they are microscopic. Examples : obsidian, basalt ...
THE GEOLOGY OF WESTERN CANADA
... After some more tropical limestone deposition, by middle Jurassic this transitional crustal fragment was once more over the top of a subduction zone form the calc-alkaline volcanics (Bonanza, Yakoun) and related plutons (Island Intrusions) present on Vancouver Island and in the Queen Charlottes. Tho ...
... After some more tropical limestone deposition, by middle Jurassic this transitional crustal fragment was once more over the top of a subduction zone form the calc-alkaline volcanics (Bonanza, Yakoun) and related plutons (Island Intrusions) present on Vancouver Island and in the Queen Charlottes. Tho ...
While hiking, you find a rock that is soft, fine grained, dark, and
... 1____________________________________________________________ 2 ___________________________________________________________ 8. List 2 Facts about the Earth’s crust 1____________________________________________________________ 2 ___________________________________________________________ 9. List 2 Fa ...
... 1____________________________________________________________ 2 ___________________________________________________________ 8. List 2 Facts about the Earth’s crust 1____________________________________________________________ 2 ___________________________________________________________ 9. List 2 Fa ...
Minerals, Rocks and Resources Outline
... •Nearly all ___________ are composed of _________ or more _____________ •_________________ classify rocks according to how they were ______________ –_______________ rocks form from _________ when it reaches the surface, ____________ and solidifies –________________________ rocks result from the ____ ...
... •Nearly all ___________ are composed of _________ or more _____________ •_________________ classify rocks according to how they were ______________ –_______________ rocks form from _________ when it reaches the surface, ____________ and solidifies –________________________ rocks result from the ____ ...
Course Outline and General Information
... Lecture Outline: (order of topics may change) Introduction to the course An overview of physical geology: Important concepts and its place among Earth sciences. Earth’s structure. Geologic time. Why is geology important? From atoms to minerals Atoms, elements and isotopes. Crystal structures. Minera ...
... Lecture Outline: (order of topics may change) Introduction to the course An overview of physical geology: Important concepts and its place among Earth sciences. Earth’s structure. Geologic time. Why is geology important? From atoms to minerals Atoms, elements and isotopes. Crystal structures. Minera ...
Chapter 5 Deformation of the Crust
... 7. Describe fault-block mountains and grabens: -Mountains formed by faults where large blocks of Earth’s crust are lifted and tilted -Ex: __________________, form nearly parallel ranges every 80 km -________________- long, narrow valleys that develop when steep faults break the crust into blocks and ...
... 7. Describe fault-block mountains and grabens: -Mountains formed by faults where large blocks of Earth’s crust are lifted and tilted -Ex: __________________, form nearly parallel ranges every 80 km -________________- long, narrow valleys that develop when steep faults break the crust into blocks and ...
Minerals and Rocks
... All rocks contain fossils Rocks are made up of minerals All rocks contain minerals formed by compression and ...
... All rocks contain fossils Rocks are made up of minerals All rocks contain minerals formed by compression and ...
Chapter 9 of Earth
... Interpreting Folds • Determine if center rocks are older or younger than flanks: fossils, right side up clues (graded bedding and mudcracks) • Are limbs parallel or “Nosed”? • Determine limb dips from measurements of Strike and Dip • Use nose rules for anticlines and synclines ...
... Interpreting Folds • Determine if center rocks are older or younger than flanks: fossils, right side up clues (graded bedding and mudcracks) • Are limbs parallel or “Nosed”? • Determine limb dips from measurements of Strike and Dip • Use nose rules for anticlines and synclines ...
Chapter 2, Section 1 – Forces in Earth`s Crust
... thinner in the middle; occurs where two plates move apart ii. Compression: squeezes rock until it folds or breaks; occurs where one plate pushes against another iii. Shearing: pushes masses of rock in opposite directions ...
... thinner in the middle; occurs where two plates move apart ii. Compression: squeezes rock until it folds or breaks; occurs where one plate pushes against another iii. Shearing: pushes masses of rock in opposite directions ...
Earth Systems & Resources
... • Deep-sea drill ships (ODP) collected ocean floor rocks – • Sea floor rocks were volcanic • Sea floor rocks were young in age (oldest 220 Ma) • Sea floor rocks magnetism showed a pattern that was identical to sea floor rock ages ...
... • Deep-sea drill ships (ODP) collected ocean floor rocks – • Sea floor rocks were volcanic • Sea floor rocks were young in age (oldest 220 Ma) • Sea floor rocks magnetism showed a pattern that was identical to sea floor rock ages ...
Chapter 6: Igneous Rocks
... the size, shape and arrangement of its grains. • Extrusive rocks are typically fine-grained (grains smaller than 1mm). The grains are small because the magma cooled rapidly at the surface, and large crystals did not have time to form. Some intrusive rocks are fine grained, but these would have forme ...
... the size, shape and arrangement of its grains. • Extrusive rocks are typically fine-grained (grains smaller than 1mm). The grains are small because the magma cooled rapidly at the surface, and large crystals did not have time to form. Some intrusive rocks are fine grained, but these would have forme ...
Tectoinic Plates and Rock Cycle
... Subduction zones form at convergent boundaries if at least one side has oceanic (denser) material. Modern examples: Andes, Cascades Major features: trench, biggest ...
... Subduction zones form at convergent boundaries if at least one side has oceanic (denser) material. Modern examples: Andes, Cascades Major features: trench, biggest ...
The earth`s layers: http://mediatheek
... Now click on Metamorphic Rock. What did these rocks use to be? ____________________________________________________________________ How are these rocks transformed into a new kind of rock? ____________________________________________________________________ Finally, click on Igneous Rock. Which of t ...
... Now click on Metamorphic Rock. What did these rocks use to be? ____________________________________________________________________ How are these rocks transformed into a new kind of rock? ____________________________________________________________________ Finally, click on Igneous Rock. Which of t ...
File
... Movement of mantle Pushes crust apart Crust plates moving slowly apart at mid-atlantic ridge Molten rock exuded (released) at mid-ocean ridge So new magma rises to the surface and solidifies New rocks formed in opening in crust Newer rocks closer to gap and older rocks further off Ridge moves approx ...
... Movement of mantle Pushes crust apart Crust plates moving slowly apart at mid-atlantic ridge Molten rock exuded (released) at mid-ocean ridge So new magma rises to the surface and solidifies New rocks formed in opening in crust Newer rocks closer to gap and older rocks further off Ridge moves approx ...
Integrated Science One
... • One hypothesis states that plate movement results from convection currents in the asthenosphere • Asthenosphere – the zone of the mantle beneath the lithosphere that consists of slowly flowing solid rock ...
... • One hypothesis states that plate movement results from convection currents in the asthenosphere • Asthenosphere – the zone of the mantle beneath the lithosphere that consists of slowly flowing solid rock ...
Metamorphic Rocks
... The mineral changes that transform a parent rock to into a new metamorphic rock by exposure to heat, stress, and fluids unlike those in which the parent rock formed. granite ...
... The mineral changes that transform a parent rock to into a new metamorphic rock by exposure to heat, stress, and fluids unlike those in which the parent rock formed. granite ...
Unit 1 – Studying the Earth Topics
... normal fault reverse fault thrust fault strike-slip fault mountain range mountain system mountain belt folded mountain plateau fault-block mountain dome mountain volcanic mountain ...
... normal fault reverse fault thrust fault strike-slip fault mountain range mountain system mountain belt folded mountain plateau fault-block mountain dome mountain volcanic mountain ...
Geology Basics - San Diego Mesa College
... floor sediments and some sea water sinks beneath the continental plate. Water lowers the melting point of rock (105), and so as the subducted crust begins to melt it also induces melting in the wedge of mantle above it, and creates magma for volcanic activity. Here is a diagram of the process. This ...
... floor sediments and some sea water sinks beneath the continental plate. Water lowers the melting point of rock (105), and so as the subducted crust begins to melt it also induces melting in the wedge of mantle above it, and creates magma for volcanic activity. Here is a diagram of the process. This ...
directed reading deforming the earth`s crust
... c. convergence. b. re-formation. d. tension. _____ 4. When stress stretches an object it is called a. compression. c. convergence. b. re-formation. d. tension. 5. What can form when compression squeezes rocks at a convergent place boundary? ___________________________________________________________ ...
... c. convergence. b. re-formation. d. tension. _____ 4. When stress stretches an object it is called a. compression. c. convergence. b. re-formation. d. tension. 5. What can form when compression squeezes rocks at a convergent place boundary? ___________________________________________________________ ...
Document
... c. convergence. b. re-formation. d. tension. _____ 4. When stress stretches an object it is called a. compression. c. convergence. b. re-formation. d. tension. 5. What can form when compression squeezes rocks at a convergent place boundary? ___________________________________________________________ ...
... c. convergence. b. re-formation. d. tension. _____ 4. When stress stretches an object it is called a. compression. c. convergence. b. re-formation. d. tension. 5. What can form when compression squeezes rocks at a convergent place boundary? ___________________________________________________________ ...
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.