C1b 6.2 The Restless Earth
... about 2cm/year. However 2cm multiplied by a million is a long way! Scientists think the continents were originally all together in a supercontinent called Pangaea. Over millions of years they have drifted to their present positions on the floating tectonic plates. ...
... about 2cm/year. However 2cm multiplied by a million is a long way! Scientists think the continents were originally all together in a supercontinent called Pangaea. Over millions of years they have drifted to their present positions on the floating tectonic plates. ...
A brief introduction to minerals, rocks and the rock cycle
... at the surface from lava, rapidly cooling, small crystals, finegrained texture. ...
... at the surface from lava, rapidly cooling, small crystals, finegrained texture. ...
Ch. 11 Mountain Building
... boundaries (where plates are actively moving) – This is where mountain building takes place!! – Ex.) Nazca Plate (oceanic crust) subducting beneath South American Plate (causing mountains to form, earthquake and volcanic activity. (Andes Mountains) ...
... boundaries (where plates are actively moving) – This is where mountain building takes place!! – Ex.) Nazca Plate (oceanic crust) subducting beneath South American Plate (causing mountains to form, earthquake and volcanic activity. (Andes Mountains) ...
Chapter 10 STUDY GUIDE: Volcanoes
... ___6. when magma from a large magma chamber invades fractures in the surrounding rocks a. sill ___7. when a large intrusive igneous body of greater than 100 km2 accumulates and becomes exposed b. lacolith ___8. when magma is injected between sedimentary layers close to Earth’s surface and collects a ...
... ___6. when magma from a large magma chamber invades fractures in the surrounding rocks a. sill ___7. when a large intrusive igneous body of greater than 100 km2 accumulates and becomes exposed b. lacolith ___8. when magma is injected between sedimentary layers close to Earth’s surface and collects a ...
Chapter 11 - ILM.COM.PK
... These mountains are usually formed on the ocean floor Example: Mid-ocean ridges that extend 65,000 kilometers. The mountains that form along ocean ridges at divergent plate boundaries are fault-block type mountains. ...
... These mountains are usually formed on the ocean floor Example: Mid-ocean ridges that extend 65,000 kilometers. The mountains that form along ocean ridges at divergent plate boundaries are fault-block type mountains. ...
Forces in Earth`s Crust
... Key Concept: Over millions of years, the forces of plate movement can change a flat plain into landforms such as anticlines and synclines, folded mountains, fault-block mountains, and plateaus. • Stresses in Earth’s crust cause the surface to change. Different stresses cause different changes. • Com ...
... Key Concept: Over millions of years, the forces of plate movement can change a flat plain into landforms such as anticlines and synclines, folded mountains, fault-block mountains, and plateaus. • Stresses in Earth’s crust cause the surface to change. Different stresses cause different changes. • Com ...
Name date
... 1. The decay of radioactive isotopes is used by geologist as a “_______________” 2. _______________ dating is a procedure used to calculate the ages of rocks and minerals a. _______________ rocks are most commonly used for radiometric dating b. Determining the age of _______________ rocks is difficu ...
... 1. The decay of radioactive isotopes is used by geologist as a “_______________” 2. _______________ dating is a procedure used to calculate the ages of rocks and minerals a. _______________ rocks are most commonly used for radiometric dating b. Determining the age of _______________ rocks is difficu ...
changes of rocks
... The Earth has three major layers. All known life exists on the solid outer layer, called the crust. Beneath the crust is the mantle, a gooey, hot layer of magma and other semi-solid rocks and minerals. Movement in the mantle leads to tectonic activity, such as volcanic eruptions and earthquakes, on ...
... The Earth has three major layers. All known life exists on the solid outer layer, called the crust. Beneath the crust is the mantle, a gooey, hot layer of magma and other semi-solid rocks and minerals. Movement in the mantle leads to tectonic activity, such as volcanic eruptions and earthquakes, on ...
Granite
... Igneous rocks are sometimes called ‘the mother of all rocks’ because they are the first type of rock formed after a volcanic eruption. Igneous rocks are formed when magma breaks through the crust and pours lava over the surface. When this cools it forms hard rock known as igneous rock. Granite is an ...
... Igneous rocks are sometimes called ‘the mother of all rocks’ because they are the first type of rock formed after a volcanic eruption. Igneous rocks are formed when magma breaks through the crust and pours lava over the surface. When this cools it forms hard rock known as igneous rock. Granite is an ...
Physical Geography - Brogranoni-GEO1
... poles like a fossil. Scientists discovered that the rocks not only showed bands of north and south magnetic fields, but that the patterns on either side of the mountains were almost identical. This was a very important discovery because it showed that the rocks had been flowing out from either side ...
... poles like a fossil. Scientists discovered that the rocks not only showed bands of north and south magnetic fields, but that the patterns on either side of the mountains were almost identical. This was a very important discovery because it showed that the rocks had been flowing out from either side ...
SCIENCE NOTES
... - Earthquakes are related to cracks in the crust called faults. - A seismograph records the motion of an earthquake. - Most of the time the crust layer is moving very slowly. - Plate Tectonics – When the crust breaks into pieces from the movement of the hot mantle, it creates plates. What Forces Act ...
... - Earthquakes are related to cracks in the crust called faults. - A seismograph records the motion of an earthquake. - Most of the time the crust layer is moving very slowly. - Plate Tectonics – When the crust breaks into pieces from the movement of the hot mantle, it creates plates. What Forces Act ...
Earth`s Layers Notes Printable
... Outermost, Solid Layer 2: continental and oceanic Composed of; oxygen, silicon and aluminum Oceanic must denser (due to 2x the iron, calcium and magnesium) 30 km MANTLE Hot, slow-flowing rock Convection takes place here Cooler rock sinks, warmer rock rises Denser than crust 2,900 ...
... Outermost, Solid Layer 2: continental and oceanic Composed of; oxygen, silicon and aluminum Oceanic must denser (due to 2x the iron, calcium and magnesium) 30 km MANTLE Hot, slow-flowing rock Convection takes place here Cooler rock sinks, warmer rock rises Denser than crust 2,900 ...
Year 9 - Bedford Free School
... Sedimentary rocks are formed when debris and sediments sink to the bottom of the sea bed. after layers of these sediments build up, the weight of the upper layers squeezes out the water from the sediments, and compacts the layers. Fossils can also survive this proces and be found in sedimentary rock ...
... Sedimentary rocks are formed when debris and sediments sink to the bottom of the sea bed. after layers of these sediments build up, the weight of the upper layers squeezes out the water from the sediments, and compacts the layers. Fossils can also survive this proces and be found in sedimentary rock ...
6th Grade Science 1st Semester Final Exam / Common Assessment
... 42. (S6E5e) What was Alfred Wegener’s theory? a. The continents have always been where they are now b. Today’s continents were once part of a single land mass that split apart. c. The continents are made of rock. d. The continents will one day join to form a single continent. 43. (S6E5g) What can fo ...
... 42. (S6E5e) What was Alfred Wegener’s theory? a. The continents have always been where they are now b. Today’s continents were once part of a single land mass that split apart. c. The continents are made of rock. d. The continents will one day join to form a single continent. 43. (S6E5g) What can fo ...
ROCKS and how to identify them
... surface allows crystals to This group of igneous rocks is called EXTRUSIVE grow to large size. These crystals are easily visible Igneous Rocks and are typically volcanic in origin. and distinguish this group of Cooling may be so rapid igneous rocks as that crystals do not have a INTRUSIVE Igneous Ro ...
... surface allows crystals to This group of igneous rocks is called EXTRUSIVE grow to large size. These crystals are easily visible Igneous Rocks and are typically volcanic in origin. and distinguish this group of Cooling may be so rapid igneous rocks as that crystals do not have a INTRUSIVE Igneous Ro ...
Study Guide - Del Mar College
... considerably larger - Later, we will learn of life on Earth at 3.85 BY at Isua, Greenland and at Pilbara, Australia at 3.6 BY - All of the present day continents have cratons with various provinces that have been sutured together - It was only recently that we have learned about these provinces - Be ...
... considerably larger - Later, we will learn of life on Earth at 3.85 BY at Isua, Greenland and at Pilbara, Australia at 3.6 BY - All of the present day continents have cratons with various provinces that have been sutured together - It was only recently that we have learned about these provinces - Be ...
The evolution of Middle America and the Gulf of l\tfexico
... Mexican volcanic zone near the end of the Middle Jurassic. Subsequently, probably about 160 m.y. ago, displacements that total - 800 km began along the MojaveSonora megashear. Contemporaneously, Yucatan and fragments of pre-Cretaceous rocks that compose parts of central and western Cuba migrated nor ...
... Mexican volcanic zone near the end of the Middle Jurassic. Subsequently, probably about 160 m.y. ago, displacements that total - 800 km began along the MojaveSonora megashear. Contemporaneously, Yucatan and fragments of pre-Cretaceous rocks that compose parts of central and western Cuba migrated nor ...
JBES-Vol5No6-p338-344 - International network for natural
... a relatively depleted of HREEs [(Gd/Yb)N= )1/02-3/32)] with Eu Negative anomalies [Eu/Eu*= (9.55-9.57)]. Felsic magma are generated partial melting of crustal protoliths and mantle-derived basaltic magmas emplaced into the lower crust. These felsic intrusions rocks have mineralogical field and geoch ...
... a relatively depleted of HREEs [(Gd/Yb)N= )1/02-3/32)] with Eu Negative anomalies [Eu/Eu*= (9.55-9.57)]. Felsic magma are generated partial melting of crustal protoliths and mantle-derived basaltic magmas emplaced into the lower crust. These felsic intrusions rocks have mineralogical field and geoch ...
13. Earth Structure, Rocks, Minerals and the Rock Cycle
... The debris thus created often transported by erosional processes via streams, glaciers, wind, and gravity When this debris is deposited as permanent sediment, the processes of burial, compression, and chemical alteration over long periods of time produce sedimentary rocks ...
... The debris thus created often transported by erosional processes via streams, glaciers, wind, and gravity When this debris is deposited as permanent sediment, the processes of burial, compression, and chemical alteration over long periods of time produce sedimentary rocks ...
The Fossil Record and Evolution
... Also dealing with very small amounts of daughter isotopes. May be lost due to erosion. ...
... Also dealing with very small amounts of daughter isotopes. May be lost due to erosion. ...
Metamorphic Rocks
... by temperatures and/or pressures unlike those in which it formed Metamorphic rocks are produced from • Igneous rocks • Sedimentary rocks • Other metamorphic rocks ...
... by temperatures and/or pressures unlike those in which it formed Metamorphic rocks are produced from • Igneous rocks • Sedimentary rocks • Other metamorphic rocks ...
VOLCANOES AND IGNEOUS ROCKS
... • Identify three properties that distinguish one lava from another. • Distinguish between and identify volcanic and plutonic rocks. • Describe the most common plutonic formations. ...
... • Identify three properties that distinguish one lava from another. • Distinguish between and identify volcanic and plutonic rocks. • Describe the most common plutonic formations. ...
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.