Mineralogy, Geochemistry, and Chronology of the Caballo and
... K2O. The secondary feldspars are significantly less fractured than primary igneous feldspar, display no perthititic textures, and contain micron size hematite inclusions. The most reddened episyenites are composed largely of interlocked K-feldspar crystals which display no igneous texture. Investiga ...
... K2O. The secondary feldspars are significantly less fractured than primary igneous feldspar, display no perthititic textures, and contain micron size hematite inclusions. The most reddened episyenites are composed largely of interlocked K-feldspar crystals which display no igneous texture. Investiga ...
Weathering and Erosion Study Guide
... 14. Which statement best explains how water mechanically breaks down rocks? A. Water expands when it freezes (Ice Wedging) B. Water does not break down rocks C. Acids in water react with chemicals in the rock D. All of the above 15. Which of the following things will most likely experience oxidation ...
... 14. Which statement best explains how water mechanically breaks down rocks? A. Water expands when it freezes (Ice Wedging) B. Water does not break down rocks C. Acids in water react with chemicals in the rock D. All of the above 15. Which of the following things will most likely experience oxidation ...
Crust
... thin boundary layer between the mantle and the crust z 32-64 km z Discovered by Andrija Mohorvičić z Found seismic waves changed speed at this level z Either different composition or density. ...
... thin boundary layer between the mantle and the crust z 32-64 km z Discovered by Andrija Mohorvičić z Found seismic waves changed speed at this level z Either different composition or density. ...
Modeling Faults - wbm-earth
... As molten rock material moves through the Earth a great deal of pressure is created. The pressure builds up in the rocks until the rocks reach a breaking point and can no longer bend or stretch. As the rocks break, they move along surfaces or cracks called faults. When a fault is created, the rocks ...
... As molten rock material moves through the Earth a great deal of pressure is created. The pressure builds up in the rocks until the rocks reach a breaking point and can no longer bend or stretch. As the rocks break, they move along surfaces or cracks called faults. When a fault is created, the rocks ...
File
... a. Where are the direct rays of the Sun hitting? b. How much sunlight and darkness is there? c. What is the season in the Northern hemisphere and the Southern hemisphere? ...
... a. Where are the direct rays of the Sun hitting? b. How much sunlight and darkness is there? c. What is the season in the Northern hemisphere and the Southern hemisphere? ...
Continental Drift and Sea-Floor Spreading 7.2
... Evidence that Pangaea existed 1. Continents fit together like puzzle pieces (mountain ranges lined up) 2. Mesosaurus – Reptile fossil found on South America and Africa – It couldn’t swim! 3. Glossopteris – Tropical plant fossil that was found in Antarctica! ...
... Evidence that Pangaea existed 1. Continents fit together like puzzle pieces (mountain ranges lined up) 2. Mesosaurus – Reptile fossil found on South America and Africa – It couldn’t swim! 3. Glossopteris – Tropical plant fossil that was found in Antarctica! ...
Rocks that are formed by
... rocks? Rocks that are formed by... Click here to return to the Board A200 ...
... rocks? Rocks that are formed by... Click here to return to the Board A200 ...
Name_________________________ Date_______ Period
... 14. The __________________ is a never ending process that all rocks are always in. 15. The three types of rock in the rock cycle are; _____________________________ _____________________________ _____________________________ 16. When rock is in a liquefied state, and below the earth’s surface it is c ...
... 14. The __________________ is a never ending process that all rocks are always in. 15. The three types of rock in the rock cycle are; _____________________________ _____________________________ _____________________________ 16. When rock is in a liquefied state, and below the earth’s surface it is c ...
GRANITOID ROCKS
... extensional “anorogenic” terranes (e.g., Basin and Range Province, St. Francois Mountains). ...
... extensional “anorogenic” terranes (e.g., Basin and Range Province, St. Francois Mountains). ...
Key Plate Tectonics Terminology (earthquakes and volcanoes)
... P-wave: The primary or fastest wave traveling away from a seismic event through the solid rock, and consisting of a train of compressions and dilations of the material. Richter Scale This measures the strength of the earthquake Sea-floor spreading: The mechanism by which new sea floor crust is creat ...
... P-wave: The primary or fastest wave traveling away from a seismic event through the solid rock, and consisting of a train of compressions and dilations of the material. Richter Scale This measures the strength of the earthquake Sea-floor spreading: The mechanism by which new sea floor crust is creat ...
Chapter 9
... • Proterozoic accretion at craton margins probably took place more rapidly than today – because Earth still possessed more internal heat – but the process continues even now ...
... • Proterozoic accretion at craton margins probably took place more rapidly than today – because Earth still possessed more internal heat – but the process continues even now ...
Background Info SBTaylor
... 1) compaction - as sediments accumulate and become buried with time, the weight of overburden compress the deeper sediments and squeeze out fluids and compact the sediment, compressing clays together, clays act as binding agents. 2) cementation - solutions carry ions into pours between sediments, wi ...
... 1) compaction - as sediments accumulate and become buried with time, the weight of overburden compress the deeper sediments and squeeze out fluids and compact the sediment, compressing clays together, clays act as binding agents. 2) cementation - solutions carry ions into pours between sediments, wi ...
Name
... mid-ocean ridges suggested a relationship. In 1961, scientists began to theorise that mid-ocean ridges mark structurally weak zones where the ocean floor was being ripped in two lengthwise along the ridge crest. New magma from deep within the Earth rises easily through these weak zones and eventuall ...
... mid-ocean ridges suggested a relationship. In 1961, scientists began to theorise that mid-ocean ridges mark structurally weak zones where the ocean floor was being ripped in two lengthwise along the ridge crest. New magma from deep within the Earth rises easily through these weak zones and eventuall ...
Rocks - The Science Queen
... “Sediment” is particles formed at the earth’s surface. Sediment can form in several ways, giving us three main classes of sedimentary rocks: 1. Detrital (or clastic) sedimentary rocks form from fragments of older rocks. These pieces may be transported some distance by water, wind, or glacial ice, th ...
... “Sediment” is particles formed at the earth’s surface. Sediment can form in several ways, giving us three main classes of sedimentary rocks: 1. Detrital (or clastic) sedimentary rocks form from fragments of older rocks. These pieces may be transported some distance by water, wind, or glacial ice, th ...
How Does Earth Work?
... How do we classify igneous rocks into groups? • Composition – primary classification method • As magma cools, minerals will solidify at various temperatures. • Minerals that form depend on the chemical composition of the magma. • Most magma is largely silica (45 to 80%) with oxides of Al, Mg, Fe, C ...
... How do we classify igneous rocks into groups? • Composition – primary classification method • As magma cools, minerals will solidify at various temperatures. • Minerals that form depend on the chemical composition of the magma. • Most magma is largely silica (45 to 80%) with oxides of Al, Mg, Fe, C ...
Chapter 8
... • Not all rocks can be dated by radiometric methods – Grains comprising detrital sedimentary rocks are not the same age as the rock in which they formed – The age of a particular mineral in a metamorphic rock may not necessarily represent the time when the rock formed ...
... • Not all rocks can be dated by radiometric methods – Grains comprising detrital sedimentary rocks are not the same age as the rock in which they formed – The age of a particular mineral in a metamorphic rock may not necessarily represent the time when the rock formed ...
Jeopardy Template
... changing due to heat and pressure within the Earth and weathering and erosion at the surface. These processes constantly change rock from one type to another in a cycle. ...
... changing due to heat and pressure within the Earth and weathering and erosion at the surface. These processes constantly change rock from one type to another in a cycle. ...
Ch 8 lecture notes
... compared to the ages of other rocks. You have probably used the idea of relative age when comparing your age with someone elseís age, such as the age of an older brother or younger sister. The relative age of a rock does not give the exact number in years since the rock was ...
... compared to the ages of other rocks. You have probably used the idea of relative age when comparing your age with someone elseís age, such as the age of an older brother or younger sister. The relative age of a rock does not give the exact number in years since the rock was ...
How mountains are made
... and give information about, forces within the Earth – Produced as rocks change shape and orientation in response to applied stress – Structural geology is the study of the shapes, arrangement, and interrelationships of rock units and the forces that cause them ...
... and give information about, forces within the Earth – Produced as rocks change shape and orientation in response to applied stress – Structural geology is the study of the shapes, arrangement, and interrelationships of rock units and the forces that cause them ...
Geologic Trips, Sierra Nevada
... There are two main types of sedimentary rocks: clastic and chemical precipitate. Clastic sedimentary rocks are composed of particles of preexisting rocks. Typical clastic sedimentary rocks include sandstone, conglomerate, gravel, shale, and limestone. These rocks contain clastic fragments of various ...
... There are two main types of sedimentary rocks: clastic and chemical precipitate. Clastic sedimentary rocks are composed of particles of preexisting rocks. Typical clastic sedimentary rocks include sandstone, conglomerate, gravel, shale, and limestone. These rocks contain clastic fragments of various ...
Provinces of Virginia Presentation
... More resistant outcrops are seen nearer the Blue Ridge Scattered old volcanic arcs, faults & intrusions ...
... More resistant outcrops are seen nearer the Blue Ridge Scattered old volcanic arcs, faults & intrusions ...
File
... Tension - pulls on the crust, stretching rock so it becomes thinner in the middle; examples include continental rifts and mid-ocean ridges Shearing - pushes a mass of rock in two opposite directions; examples include faults and fault zones Compression - squeezes rock until it folds or breaks; exampl ...
... Tension - pulls on the crust, stretching rock so it becomes thinner in the middle; examples include continental rifts and mid-ocean ridges Shearing - pushes a mass of rock in two opposite directions; examples include faults and fault zones Compression - squeezes rock until it folds or breaks; exampl ...
Plutonic or Intrusive Igneous Rocks
... circular at all. It is “cylindrical” because the horizontal width of it in any direction is about the same, and it is quite long. The top has been eroded somewhat (you can see the talus at its base) and it also extends to some depth inside the ground, so that vertical dimension is the long one. Ther ...
... circular at all. It is “cylindrical” because the horizontal width of it in any direction is about the same, and it is quite long. The top has been eroded somewhat (you can see the talus at its base) and it also extends to some depth inside the ground, so that vertical dimension is the long one. Ther ...
Powerpoint 1
... Relative dating uses the Law of Superposition to estimate the age of an artifact or fossil. Absolute dating uses the amount of radioactive substances in an artifact or fossil to determines its age more precisely. Discussion? ...
... Relative dating uses the Law of Superposition to estimate the age of an artifact or fossil. Absolute dating uses the amount of radioactive substances in an artifact or fossil to determines its age more precisely. Discussion? ...
gloersen_kim_mgcpp
... 30 Ma. , subductive tectonic movements occurred between the Farallon, North American, and Pacific plates. 20 Ma. the relative movements of the North American and the Pacific Plate changed from a head on head contact with the Farallon Plate to a lateral slipping against each other. ...
... 30 Ma. , subductive tectonic movements occurred between the Farallon, North American, and Pacific plates. 20 Ma. the relative movements of the North American and the Pacific Plate changed from a head on head contact with the Farallon Plate to a lateral slipping against each other. ...
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.