d3 - e-Geowords
... familiar rocks do not extend to great depth. He had just finished equipping a seismic observatory in Zagreb when at some remove an earthquake occurred that his station and others could record.4 Note: seismic wave velocity increases with rock rigidity (which is a proxy for rock density). The arrival ...
... familiar rocks do not extend to great depth. He had just finished equipping a seismic observatory in Zagreb when at some remove an earthquake occurred that his station and others could record.4 Note: seismic wave velocity increases with rock rigidity (which is a proxy for rock density). The arrival ...
Molten rock that comes to the surface of the earth is called:
... a. the cementation of rock fragments b. the carrying away of sediment c. the development of mineral crystals d. the decomposition of organisms 24. Fossils are generally found in what type of rocks? a. rocks from volcanoes b. sedimentary rocks c. metamorphic rocks d. rocks containing quartz 25. Which ...
... a. the cementation of rock fragments b. the carrying away of sediment c. the development of mineral crystals d. the decomposition of organisms 24. Fossils are generally found in what type of rocks? a. rocks from volcanoes b. sedimentary rocks c. metamorphic rocks d. rocks containing quartz 25. Which ...
Metamorphic Rock WS - Science with Mr. Grimes
... Fill in the blanks in the flowchart below. Collisions between Earth’s plates push rock down toward the heat of Earth’s (1) ____________________. As the rock is buried deeper in the crust, (2) _________________ increases in the rock. The rock is squeezed so tightly that the (3) _____________________ ...
... Fill in the blanks in the flowchart below. Collisions between Earth’s plates push rock down toward the heat of Earth’s (1) ____________________. As the rock is buried deeper in the crust, (2) _________________ increases in the rock. The rock is squeezed so tightly that the (3) _____________________ ...
Review and Study Sheet BRING TO EXAM
... Define sedimentary rock, How/where do sedimentary rocks form? How sedimentary grains are effected by transportation, deposition, lithification What is lithification ? Sorting, rounding, Types of sedimentary rocks Formation and sources of oil, gas Sedimentary structures and interpretation of depositi ...
... Define sedimentary rock, How/where do sedimentary rocks form? How sedimentary grains are effected by transportation, deposition, lithification What is lithification ? Sorting, rounding, Types of sedimentary rocks Formation and sources of oil, gas Sedimentary structures and interpretation of depositi ...
which is integral in the stabilization of new continental crust, or by
... The most abundant constituents of the upper continental crust have granitic rocks, their volcanic equivalents, and metamorphic and sedimentary rocks of granitic composition. (Wedepohl, 1991) Lower crust, where dry, magnesium- rich cumulates and eclogite are expected to predominate. (Saunders et al., ...
... The most abundant constituents of the upper continental crust have granitic rocks, their volcanic equivalents, and metamorphic and sedimentary rocks of granitic composition. (Wedepohl, 1991) Lower crust, where dry, magnesium- rich cumulates and eclogite are expected to predominate. (Saunders et al., ...
Virginia Physical Geography
... The Blue Ridge province experienced mountain building during the Paleozoic era (750-700Ma). In central and northern Virginia, the 570 million year old basalts are over sedimentary rock. Some metamorphism of these rocks occurred during the formation of the Appalachian Mountains. ...
... The Blue Ridge province experienced mountain building during the Paleozoic era (750-700Ma). In central and northern Virginia, the 570 million year old basalts are over sedimentary rock. Some metamorphism of these rocks occurred during the formation of the Appalachian Mountains. ...
Igneous Rocks
... • The pseudometamorphism bordering on witchcraft • The absolute lowest grade of metamorphism • Caused by weight (pressure) of overlying rocks • Creates non-foliated rocks – Ex. Bituminous coal ...
... • The pseudometamorphism bordering on witchcraft • The absolute lowest grade of metamorphism • Caused by weight (pressure) of overlying rocks • Creates non-foliated rocks – Ex. Bituminous coal ...
Geology of Planet Earth
... Minearl #15.________________________________________________________________________ 13. Why do intrusive igneous rocks tend to be course-grained and extrusive rocks fine-grained ? ...
... Minearl #15.________________________________________________________________________ 13. Why do intrusive igneous rocks tend to be course-grained and extrusive rocks fine-grained ? ...
Study Questions for Exam #2
... 4. What two lines of paleomagnetic data support the idea of seafloor spreading? a. Polar wander and the electromagnetic field of the Earth b. Polar wander and the symmetric pattern of magnetic reversals on the ocean floor c. The dynamo generated by the spinning, liquid Outer Core and pattern of magn ...
... 4. What two lines of paleomagnetic data support the idea of seafloor spreading? a. Polar wander and the electromagnetic field of the Earth b. Polar wander and the symmetric pattern of magnetic reversals on the ocean floor c. The dynamo generated by the spinning, liquid Outer Core and pattern of magn ...
ROCKS AND MINERALS
... EACH LAYER OF ROCK IS OLDER THAN THE LAYER ABOVE IT AND YOUNGER THAN THE LAYER BELOW IT ...
... EACH LAYER OF ROCK IS OLDER THAN THE LAYER ABOVE IT AND YOUNGER THAN THE LAYER BELOW IT ...
Rocks PowerPoint
... Compaction – The layering of sediments in horizontal ‘bedding’ with gravity to produce sedimentary rock layers Cementation – the joining with cement of the individual sediments in the newly formed rock layers. Lithification – Combination of both compaction and cementation Burial – sediments are buri ...
... Compaction – The layering of sediments in horizontal ‘bedding’ with gravity to produce sedimentary rock layers Cementation – the joining with cement of the individual sediments in the newly formed rock layers. Lithification – Combination of both compaction and cementation Burial – sediments are buri ...
Metamorphic Rocks!
... • During metamorphism, rocks are usually subjected to 3 agents (at the same time): ...
... • During metamorphism, rocks are usually subjected to 3 agents (at the same time): ...
Ancient rocks yield clues about Earth`s earliest crust
... samples from the Acasta Gneiss Complex, which was discovered in the 1980s and found to contain some of the Earth’s oldest rocks, between 3.6 and four billion years old. Due to their extreme age, the rocks have undergone multiple metamorphic events, making it difficult to understand their geoche ...
... samples from the Acasta Gneiss Complex, which was discovered in the 1980s and found to contain some of the Earth’s oldest rocks, between 3.6 and four billion years old. Due to their extreme age, the rocks have undergone multiple metamorphic events, making it difficult to understand their geoche ...
III. SEDIMENTARY ROCK
... FORMATION OF SEDIMENTARY ROCKS SEDIMENTARY ROCKS ARE EITHER CLASTIC, CHEMICAL or ...
... FORMATION OF SEDIMENTARY ROCKS SEDIMENTARY ROCKS ARE EITHER CLASTIC, CHEMICAL or ...
micro-analysis of inclusion-bearing albite and garnet porphyroblasts
... howie@student.umass.edu The Appalachian mountains began forming as early as 480 Ma by collisions of one or more continents with ancient eastern North America. Multiple collisional events resulted in the complex geology that is now exposed. Broad understanding of this mountain building process is lim ...
... howie@student.umass.edu The Appalachian mountains began forming as early as 480 Ma by collisions of one or more continents with ancient eastern North America. Multiple collisional events resulted in the complex geology that is now exposed. Broad understanding of this mountain building process is lim ...
Volcanoes Magma and Igneous Rocks Earthquakes notes sheet
... __________________ Texture, had two-stage cooling—first slow underground, then fast on the surface ...
... __________________ Texture, had two-stage cooling—first slow underground, then fast on the surface ...
What are rocks?
... have things in common is called classification. •Rocks are classified by the way they form. •Petrologists classify rocks and minerals. ...
... have things in common is called classification. •Rocks are classified by the way they form. •Petrologists classify rocks and minerals. ...
Lecture 6 Structural Geology, Gettysburg NMP, Chickamauga and Chattanooga NMP
... stress is removed; plastic (or ductile) means that it does not ...
... stress is removed; plastic (or ductile) means that it does not ...
Rocks
... Metamorphic Rocks: Classification • Foliated – layered looking. These layers have different densities EX. Shale • Non-foliated – no layers or bands. Usually have only one mineral EX. Marble ...
... Metamorphic Rocks: Classification • Foliated – layered looking. These layers have different densities EX. Shale • Non-foliated – no layers or bands. Usually have only one mineral EX. Marble ...
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.