Metamorphic Rocks
... What are metamorphic textures? • Texture refers to the size, shape, and arrangement of mineral grains within a rock • Foliation – planar arrangement of mineral grains within a rock ...
... What are metamorphic textures? • Texture refers to the size, shape, and arrangement of mineral grains within a rock • Foliation – planar arrangement of mineral grains within a rock ...
G2S15Lesson1 Introd
... Igneous rocks form from a cooling magma. The composition (mineral makeup) of igneous rocks can be divided into two main groups: 1. Felsic (silicic) rocks: These are lighter colored rocks and include abundant quartz, potassium feldspar – this includes Granite and Rhyolite 2. Mafic Rocks: These are da ...
... Igneous rocks form from a cooling magma. The composition (mineral makeup) of igneous rocks can be divided into two main groups: 1. Felsic (silicic) rocks: These are lighter colored rocks and include abundant quartz, potassium feldspar – this includes Granite and Rhyolite 2. Mafic Rocks: These are da ...
Sedimentary rocks are formed when pieces of pre
... Sedimentary rocks are formed when pieces of pre-existing rock or parts of once-living organisms accumulate in deposits on the Earth's surface. There are three main types of sedimentary rocks. They are clastics, biological, and chemical sedimentary rocks. Each category of sedimentary rock has distinc ...
... Sedimentary rocks are formed when pieces of pre-existing rock or parts of once-living organisms accumulate in deposits on the Earth's surface. There are three main types of sedimentary rocks. They are clastics, biological, and chemical sedimentary rocks. Each category of sedimentary rock has distinc ...
Summary of the Glenn Creek Quadrangle
... is also folded. This event preceeded the large amount of thrust faulting in the region. The land was likely folded as a precursor to the forces of the Laramide Orogeny or part of the Sevier Orogeny. A large, upright, north-south trending anticline is noted on the western half of the map and visible ...
... is also folded. This event preceeded the large amount of thrust faulting in the region. The land was likely folded as a precursor to the forces of the Laramide Orogeny or part of the Sevier Orogeny. A large, upright, north-south trending anticline is noted on the western half of the map and visible ...
Introduction to Metamorphic Rock Forms
... Metamorphic rocks are formed from sedimentary or igneous rocks with physical or chemical alterations caused by heat, pressure, or the infiltration of other materials. Metamorphic rocks can be classified as either foliated or nonfoliated; foliation refers to the rock flaking or splitting into thin sl ...
... Metamorphic rocks are formed from sedimentary or igneous rocks with physical or chemical alterations caused by heat, pressure, or the infiltration of other materials. Metamorphic rocks can be classified as either foliated or nonfoliated; foliation refers to the rock flaking or splitting into thin sl ...
Rock Types - Perils of Classification
... from Tholey, western Germany. Rocks show stronger Fe/Mg enrichment than CA trend. Tholeiites are commonly found island arcs, while CA rocks are more commonly found in continental arcs. ...
... from Tholey, western Germany. Rocks show stronger Fe/Mg enrichment than CA trend. Tholeiites are commonly found island arcs, while CA rocks are more commonly found in continental arcs. ...
Civics – Unit 1 Jeopardy
... Earth’s geological time, and during this period, Earth’s atmosphere began to convert from carbon dioxide and methane to ...
... Earth’s geological time, and during this period, Earth’s atmosphere began to convert from carbon dioxide and methane to ...
Fault rocks of the Jelešňa fault zone (Central Carpathian Paleogene
... offset probably corresponds to an oblique/transverse fault cutting the Orava–Nowy Targ Basin basement. It is described by Pomianowski (2003) as a dextral fault, although assessment of the character and magnitude of fault displacement requires further studies. The mesoscopic fault zones have been inv ...
... offset probably corresponds to an oblique/transverse fault cutting the Orava–Nowy Targ Basin basement. It is described by Pomianowski (2003) as a dextral fault, although assessment of the character and magnitude of fault displacement requires further studies. The mesoscopic fault zones have been inv ...
Geology and Hydrology of Khwisero District, Kenya
... Slate - This is metamorphosed shale know has slate, from the side one can see fine layers. It is likely from the Mudaa Formation. ...
... Slate - This is metamorphosed shale know has slate, from the side one can see fine layers. It is likely from the Mudaa Formation. ...
The Disadvantages of Volcanoes
... In volcanic areas water can be pumped into the hot rocks and heated to provide energy. In Iceland nearly 90% of homes are heated by this method. Tourism A volcano is an interesting tourist attraction: Sell cooled lava as souvenirs Sell rock as souvenirs Guided tour of the volcano Volcano merchandise ...
... In volcanic areas water can be pumped into the hot rocks and heated to provide energy. In Iceland nearly 90% of homes are heated by this method. Tourism A volcano is an interesting tourist attraction: Sell cooled lava as souvenirs Sell rock as souvenirs Guided tour of the volcano Volcano merchandise ...
Layers of the Earth - study notes
... Most of the earthquakes and volcanoes in the world occur where two plates meet. The most active area of volcanoes and earthquakes is called the Ring of Fire. It circles around the Pacific Ocean. The Atlantic Ocean is growing because the Mid Atlantic Ridge continues to separate. Magma seeps up ...
... Most of the earthquakes and volcanoes in the world occur where two plates meet. The most active area of volcanoes and earthquakes is called the Ring of Fire. It circles around the Pacific Ocean. The Atlantic Ocean is growing because the Mid Atlantic Ridge continues to separate. Magma seeps up ...
An Introduction to Geology - e
... 13. Into how many concentric compositional layers is Earth divided? a. 1; b. 2; c. 3; d. 4; e. 5 14. Earth's core is inferred to be: a. hollow; b. composed of rock with a high silica content; c. completely molten; d. composed mostly of iron and nickel; e. completely solid. 15. The asthenosphere: a. ...
... 13. Into how many concentric compositional layers is Earth divided? a. 1; b. 2; c. 3; d. 4; e. 5 14. Earth's core is inferred to be: a. hollow; b. composed of rock with a high silica content; c. completely molten; d. composed mostly of iron and nickel; e. completely solid. 15. The asthenosphere: a. ...
Igneous and Metamorphic Rocks
... The order of crystallization for the discontinuous series from olivine to pyroxene to amphibole to biotite to quartz and K-feldspar follows a sequence of increasingly complex arrangements of silicon-oxygen tetraheda. These arrangements progress from single tetrahedra, to single chains, to double cha ...
... The order of crystallization for the discontinuous series from olivine to pyroxene to amphibole to biotite to quartz and K-feldspar follows a sequence of increasingly complex arrangements of silicon-oxygen tetraheda. These arrangements progress from single tetrahedra, to single chains, to double cha ...
rock cycle_pangea - Northside Middle School
... Rocks take different forms at different times. A long time ago our earth was very volcanic. As these volcanoes cooled and vast oceans swept over the earth, the cooled lava was broken or crushed into small pieces. These small pieces were cemented together to become sedimentary rocks. These rocks wer ...
... Rocks take different forms at different times. A long time ago our earth was very volcanic. As these volcanoes cooled and vast oceans swept over the earth, the cooled lava was broken or crushed into small pieces. These small pieces were cemented together to become sedimentary rocks. These rocks wer ...
Supplementary data Appendix 1: country rock lithological data Hjort
... basalt pillows. These are the oldest igneous rocks seen in the study area and are ellipsoidal in section. They are 15–45 cm long with 2–5 cm chilled margins with a vesicular zone ~5 cm wide. The basaltic cores of the pillows are garnetiferous, with large (2–5 cm) xenocrysts of garnet. ...
... basalt pillows. These are the oldest igneous rocks seen in the study area and are ellipsoidal in section. They are 15–45 cm long with 2–5 cm chilled margins with a vesicular zone ~5 cm wide. The basaltic cores of the pillows are garnetiferous, with large (2–5 cm) xenocrysts of garnet. ...
`Rockery 1` - rock game Model different characteristics of rocks
... • Sedimentary rocks are made of grains which have been cemented and compacted together. • Rocks which have been subjected to the heat and/or pressure from plate tectonic movement become metamorphosed and are composed of interlocking crystals. • Some metamorphic rocks show crystal alignment, e.g. sla ...
... • Sedimentary rocks are made of grains which have been cemented and compacted together. • Rocks which have been subjected to the heat and/or pressure from plate tectonic movement become metamorphosed and are composed of interlocking crystals. • Some metamorphic rocks show crystal alignment, e.g. sla ...
Faults
... 3.What’s the difference between faulting and folding? -Cooler temperatures causes rocks to fault rather than _________ 4. What’s the difference between a fracture and a fault? -fracture- ____________ along either side of a break -fault- when rocks do move 5. What is a hanging wall and a footwall? -_ ...
... 3.What’s the difference between faulting and folding? -Cooler temperatures causes rocks to fault rather than _________ 4. What’s the difference between a fracture and a fault? -fracture- ____________ along either side of a break -fault- when rocks do move 5. What is a hanging wall and a footwall? -_ ...
Ch7_Metamorphism
... A) The physical composition of his face is unchanged (in metam. rock, bulk composition remains constant) B) The physical appearance of his face has changed (in metam. rock, mineral assemblages change) C) He will continue to change with new external conditions (increased heat and pressure will cause ...
... A) The physical composition of his face is unchanged (in metam. rock, bulk composition remains constant) B) The physical appearance of his face has changed (in metam. rock, mineral assemblages change) C) He will continue to change with new external conditions (increased heat and pressure will cause ...
Faults
... Types of faults • Strike-slip faults • Dominant displacement is horizontal and parallel to the trend, or strike • Transform fault • Large strike-slip fault that cuts through the lithosphere • Often associated with plate boundaries ...
... Types of faults • Strike-slip faults • Dominant displacement is horizontal and parallel to the trend, or strike • Transform fault • Large strike-slip fault that cuts through the lithosphere • Often associated with plate boundaries ...
Henry6SCI3 (H6SCIGEOLOGY)
... B. Everyplace on Earth's crust has a probability of earthquakes and the San Andreas Fault has never had one. C. The San Andreas is a known major fault where pressure for lateral movement has been building for many years. D. The San Andreas Fault is the line that divides the part of California that i ...
... B. Everyplace on Earth's crust has a probability of earthquakes and the San Andreas Fault has never had one. C. The San Andreas is a known major fault where pressure for lateral movement has been building for many years. D. The San Andreas Fault is the line that divides the part of California that i ...
GY 111 Lecture Note Series Intrusive Igneous Rocks
... pegmatite (remember plutons cool very slowly which means that they will have either phaneritic or pegmatitic textures) or diorite. Mafic and ultramafic rocks also form very large intrusions, but not to the extent that we observe in granites. Granites form within continents at the edge of convergent ...
... pegmatite (remember plutons cool very slowly which means that they will have either phaneritic or pegmatitic textures) or diorite. Mafic and ultramafic rocks also form very large intrusions, but not to the extent that we observe in granites. Granites form within continents at the edge of convergent ...
No Slide Title
... are present in cratons and show evidence of episodes of deformation accompanied by metamorphism, igneous activity and mountain building ...
... are present in cratons and show evidence of episodes of deformation accompanied by metamorphism, igneous activity and mountain building ...
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.