4th Grade Core Knowledge
... A crack in the Earth’s crust along which the blocks of rock on either side have been pushed together or moved apart; they are created by pressure on Earth’s plates as they move ...
... A crack in the Earth’s crust along which the blocks of rock on either side have been pushed together or moved apart; they are created by pressure on Earth’s plates as they move ...
21.2: Relative Dating of Rocks
... • Today: 4.6 billion years old How did scientist come up with this number? 1) Relative Age Dating 2) Absolute Age Dating ...
... • Today: 4.6 billion years old How did scientist come up with this number? 1) Relative Age Dating 2) Absolute Age Dating ...
Igneous, metamorphic and sedimentary rocks.
... the relative proportions of their minerals. Silicic or Felsic rocks: white, grey or pink in colour; rich in quartz, potassium feldspars and sodium plagioclase feldspars and biotite/muscovite. Intermediate rocks: salt and pepper for coarsegrained rocks, dark grey for fine-grained rocks; rich in amphi ...
... the relative proportions of their minerals. Silicic or Felsic rocks: white, grey or pink in colour; rich in quartz, potassium feldspars and sodium plagioclase feldspars and biotite/muscovite. Intermediate rocks: salt and pepper for coarsegrained rocks, dark grey for fine-grained rocks; rich in amphi ...
Short Course in Basic Geology Gregory A. Miles This short course
... Lithospheric plates diverge at spreading centers; basaltic magma rises, "fills in the gap", and forms new lithosphere. Oceanic spreading centers occur at mid-ocean ridges, which form a nearly continuous chain of submarine mountains approximately 40,000 miles long. Continental spreading centers occur ...
... Lithospheric plates diverge at spreading centers; basaltic magma rises, "fills in the gap", and forms new lithosphere. Oceanic spreading centers occur at mid-ocean ridges, which form a nearly continuous chain of submarine mountains approximately 40,000 miles long. Continental spreading centers occur ...
Rock Cycle - PowerPoint Notes Pages File
... Weathering is a destructive process. Weathering is the breakdown of rock into smaller pieces called CLASTS. These clasts remain with the parent rock. Weathering can be: • Physical by heat/cold, rain & wind. • Chemical by acid groundwater and acid rain. Volcanoes produce most of the carbon dioxide i ...
... Weathering is a destructive process. Weathering is the breakdown of rock into smaller pieces called CLASTS. These clasts remain with the parent rock. Weathering can be: • Physical by heat/cold, rain & wind. • Chemical by acid groundwater and acid rain. Volcanoes produce most of the carbon dioxide i ...
rocks and rock- forming processes
... convergent plate boundaries. At convergent plate boundaries rocks originally at or near the surface are forced down to great depths and are altered by high, near horizontal pressure exerted on them. Additionally, the vertically directed weight of overlying rock and sediments contributes to metamorph ...
... convergent plate boundaries. At convergent plate boundaries rocks originally at or near the surface are forced down to great depths and are altered by high, near horizontal pressure exerted on them. Additionally, the vertically directed weight of overlying rock and sediments contributes to metamorph ...
Which of the following attempts to explain the formation of the Solar
... b. What type of plutonic and volcanic rocks would you expect to be formed from the magma generated at a mid ocean ridge (2) Gabbro / Basalt c. What type of volcano would be most likely be produced above a hot spot on an oceanic plate and would it be more or less dangerous than the volcano in the And ...
... b. What type of plutonic and volcanic rocks would you expect to be formed from the magma generated at a mid ocean ridge (2) Gabbro / Basalt c. What type of volcano would be most likely be produced above a hot spot on an oceanic plate and would it be more or less dangerous than the volcano in the And ...
Fire Up rock
... Rocks driven underground where heat and pressure partially melt and recrystallize form this type of rock. Morph for $100 ...
... Rocks driven underground where heat and pressure partially melt and recrystallize form this type of rock. Morph for $100 ...
Igneous Rock PPT - Effingham County Schools
... Therefore, the magma cools slowly creating larger crystals ...
... Therefore, the magma cools slowly creating larger crystals ...
Mountain Building
... c. Continental volcanic arc forms d. Accretionary wedge forms e. Example of inactive Andean-type orogenic belt--Sierra Nevada Range and California's Coast Ranges IV. Continental collisions is third mechanism of mountain building at convergent plate margins A. Where two plates with continental crust ...
... c. Continental volcanic arc forms d. Accretionary wedge forms e. Example of inactive Andean-type orogenic belt--Sierra Nevada Range and California's Coast Ranges IV. Continental collisions is third mechanism of mountain building at convergent plate margins A. Where two plates with continental crust ...
Noranda
... more than half are Archean in age. The Archean rocks belong to the Canadian Shield (2.9-2.5 g Ga) and are surrotmded by Proterozoic orogenic zones (2.2-1.8 Ga) and the Grenville Province (1.3-1.0 Ga) to the south. The Rouyn-Noranda area is located in the south-central Superior Province, the largest ...
... more than half are Archean in age. The Archean rocks belong to the Canadian Shield (2.9-2.5 g Ga) and are surrotmded by Proterozoic orogenic zones (2.2-1.8 Ga) and the Grenville Province (1.3-1.0 Ga) to the south. The Rouyn-Noranda area is located in the south-central Superior Province, the largest ...
Dunbar Geology Walk - Edinburgh Geological Society
... the Earth’s crust was close to the equator, between 420 and 300 million years ago (the Devonian and Carboniferous Periods). Away back in the mists of time ... The geological foundations of this area date back to a period of mountain building and tectonic plate convergence, known as the Caledonian Or ...
... the Earth’s crust was close to the equator, between 420 and 300 million years ago (the Devonian and Carboniferous Periods). Away back in the mists of time ... The geological foundations of this area date back to a period of mountain building and tectonic plate convergence, known as the Caledonian Or ...
Garnet-Bearing Magmatism in the Palaeozoic Caledonides of
... EARLY DEVONIAN MAGMATISM. The transtensional tectonic regime that existed at times during the early Devonian permitted emplacement of lamprophyre dykes throughout northern England (Soper & Woodcock, 2003). These magmas were large-fraction melts of depleted oceanic lithosphere that had been metasomat ...
... EARLY DEVONIAN MAGMATISM. The transtensional tectonic regime that existed at times during the early Devonian permitted emplacement of lamprophyre dykes throughout northern England (Soper & Woodcock, 2003). These magmas were large-fraction melts of depleted oceanic lithosphere that had been metasomat ...
kinds of metamorphism
... takes place as an after effect of igneous activity. Magmas have lots of water with dissolved minerals, but as the magma crystallizes the mineral laden water is driven off into the surrounding country rock where it seeps into cracks and pores precipitating the minerals. The most spectacular result of ...
... takes place as an after effect of igneous activity. Magmas have lots of water with dissolved minerals, but as the magma crystallizes the mineral laden water is driven off into the surrounding country rock where it seeps into cracks and pores precipitating the minerals. The most spectacular result of ...
Sea Floor Spreading (SFS)
... Think of the mid-ocean ridge as the “birthplace” of rocks and the place where ocean crust and continental crust meet is where rocks “die”. So as they travel along the ocean floor life goes on. 2. Magnetic Reversals The earth has a magnetic field that extends from pole to pole. The North Pole is ...
... Think of the mid-ocean ridge as the “birthplace” of rocks and the place where ocean crust and continental crust meet is where rocks “die”. So as they travel along the ocean floor life goes on. 2. Magnetic Reversals The earth has a magnetic field that extends from pole to pole. The North Pole is ...
Boulder Walk brochure
... that have been transformed by heat and pressure. Metamorphic rocks occur throughout earth’s crust and are formed when rocks of any type are exposed to high heat and pressure either deep under the earth’s surface, at the junction of continental plates, or where magma from the earth’s interior seeps i ...
... that have been transformed by heat and pressure. Metamorphic rocks occur throughout earth’s crust and are formed when rocks of any type are exposed to high heat and pressure either deep under the earth’s surface, at the junction of continental plates, or where magma from the earth’s interior seeps i ...
Petroleum - Research at UVU
... • In mid to late Cretaceous time, about 100 to 70 Ma, evaporate (salt and gypsum) rocks were deposited (on top of the reservoir rocks). • In Early Tertiary time, about 35 Ma, Iraq and the Arabian peninsula collided with Iran and the rest of Europe and Asia. The collision caused the source, reservoir ...
... • In mid to late Cretaceous time, about 100 to 70 Ma, evaporate (salt and gypsum) rocks were deposited (on top of the reservoir rocks). • In Early Tertiary time, about 35 Ma, Iraq and the Arabian peninsula collided with Iran and the rest of Europe and Asia. The collision caused the source, reservoir ...
Name: Date: Block
... 22. What affects the amount of destruction caused by earthquake vibrations? 23. Describe each of the Earth’s layers. 24. What landform develops at plate boundaries where one oceanic plate descends beneath another? 25. How does the age of seafloor sediments change with increasing distance from the oc ...
... 22. What affects the amount of destruction caused by earthquake vibrations? 23. Describe each of the Earth’s layers. 24. What landform develops at plate boundaries where one oceanic plate descends beneath another? 25. How does the age of seafloor sediments change with increasing distance from the oc ...
Earth Processes
... between the inner core and the mantle. Pangaea The name German scientist Alfred Wegener gave to the supercontinent he believed existed before it broke up to form the continents; means “all lands.” plate A section of Earth’s crust and its corresponding section of the upper mantle. prime meridian An i ...
... between the inner core and the mantle. Pangaea The name German scientist Alfred Wegener gave to the supercontinent he believed existed before it broke up to form the continents; means “all lands.” plate A section of Earth’s crust and its corresponding section of the upper mantle. prime meridian An i ...
Shoebox Faulting
... Ask the question “Has anyone ever felt an earthquake?” Discuss the responses focusing on how earthquakes make the earth move. Introduce the idea that earthquakes are like ripples in a pond that radiate out from where a rock is thrown into the water. Explain that earthquakes radiate from a feature ca ...
... Ask the question “Has anyone ever felt an earthquake?” Discuss the responses focusing on how earthquakes make the earth move. Introduce the idea that earthquakes are like ripples in a pond that radiate out from where a rock is thrown into the water. Explain that earthquakes radiate from a feature ca ...
7th Grade Science Midterm Review
... Scientists think that about 245 million years ago the continents were joined in a single large landmass that they call Pangaea. ...
... Scientists think that about 245 million years ago the continents were joined in a single large landmass that they call Pangaea. ...
Relative Dating - Cloudfront.net
... • Sometimes layers of rock are missing • There is a break or gap of geologic time not represented by the layers in an area. The gap represents an unknown length of time • No way of knowing exactly what happened but we do know UPLIFT exposed rocks to weathering and erosion. • Rocks above unconformity ...
... • Sometimes layers of rock are missing • There is a break or gap of geologic time not represented by the layers in an area. The gap represents an unknown length of time • No way of knowing exactly what happened but we do know UPLIFT exposed rocks to weathering and erosion. • Rocks above unconformity ...
Igneous Rocks - Mr. Meyer`s Science Page
... Everything you ever wanted to know about granites from Rob's Granite Page. Igneous Rock Classification A great site dealing with the classification and identification of igneous rocks hosted by James Madison ...
... Everything you ever wanted to know about granites from Rob's Granite Page. Igneous Rock Classification A great site dealing with the classification and identification of igneous rocks hosted by James Madison ...
igneous rocks
... If an igneous rock is extrusive (volcanic) that means it formed on or close to the Earth’s surface where temperatures are cooler than deep within the earth. This would give the igneous rock samples small or possibly no crystal structure at all. ...
... If an igneous rock is extrusive (volcanic) that means it formed on or close to the Earth’s surface where temperatures are cooler than deep within the earth. This would give the igneous rock samples small or possibly no crystal structure at all. ...
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.