Ch 5 S 4 Sea-Floor Spreading
... 1. While studying the ocean floors, scientists found that the Earth’s magnetic poles have reversed themselves many times. a. The last reversal happened 780,000 years ago 2. The rock that makes up the ocean floor lies in a pattern of magnetized “stripes” 3. The rock contains iron a. As the rock coole ...
... 1. While studying the ocean floors, scientists found that the Earth’s magnetic poles have reversed themselves many times. a. The last reversal happened 780,000 years ago 2. The rock that makes up the ocean floor lies in a pattern of magnetized “stripes” 3. The rock contains iron a. As the rock coole ...
Word format
... Where does the fastest plate motion occur on Earth? ___________________________ How fast is the spreading rate at this ridge? ________ cm/year How many tectonic plates are there? _______________ These plates consist of brittle crust and upper mantle, (called the ____________________) floating around ...
... Where does the fastest plate motion occur on Earth? ___________________________ How fast is the spreading rate at this ridge? ________ cm/year How many tectonic plates are there? _______________ These plates consist of brittle crust and upper mantle, (called the ____________________) floating around ...
4. Plate Tectonics II (p. 46-67)
... Where does the fastest plate motion occur on Earth? ___________________________ How fast is the spreading rate at this ridge? ________ cm/year How many tectonic plates are there? _______________ These plates consist of brittle crust and upper mantle, (called the ____________________) floating around ...
... Where does the fastest plate motion occur on Earth? ___________________________ How fast is the spreading rate at this ridge? ________ cm/year How many tectonic plates are there? _______________ These plates consist of brittle crust and upper mantle, (called the ____________________) floating around ...
GE 2000 Review Sheet- Exam 1 Minerals
... - Know the characteristics that fulfill the definition of a mineral - Know the definitions of the common physical properties used for identifying minerals - Know the relative abundance of major elements in Earth’s crust and how it relates to minerals - Know the composition of the major mineral group ...
... - Know the characteristics that fulfill the definition of a mineral - Know the definitions of the common physical properties used for identifying minerals - Know the relative abundance of major elements in Earth’s crust and how it relates to minerals - Know the composition of the major mineral group ...
Volcano Notes
... Forms when layers of volcanic fragments alternate with lava. The magma that forms composite volcanoes commonly contains large amounts of silica, water, and gases. They are larger than cinder-cone volcanoes, and, because of their violently explosive nature, they are potentially dangerous to humans an ...
... Forms when layers of volcanic fragments alternate with lava. The magma that forms composite volcanoes commonly contains large amounts of silica, water, and gases. They are larger than cinder-cone volcanoes, and, because of their violently explosive nature, they are potentially dangerous to humans an ...
Unit 2 Test
... How oceanic crust compares to continental crust Theory that continents were once joined together & broke apart Submerged part of the continent Feature at the base of a continent composed of sediments eroded from the continent Shallowest part of the continental margin Steepest part of the continental ...
... How oceanic crust compares to continental crust Theory that continents were once joined together & broke apart Submerged part of the continent Feature at the base of a continent composed of sediments eroded from the continent Shallowest part of the continental margin Steepest part of the continental ...
Cross-section of East African Rift Valley
... Generally, core is only 15% of the total volume of the earth, but it is 32% of the total mass of the earth. The core with a diameter of about 3475 km, is very hot (about 3700oC), dense and under tremendous pressure. It has been divided into two parts: an exterior "Outer Core" (Liquid); and an "Inner ...
... Generally, core is only 15% of the total volume of the earth, but it is 32% of the total mass of the earth. The core with a diameter of about 3475 km, is very hot (about 3700oC), dense and under tremendous pressure. It has been divided into two parts: an exterior "Outer Core" (Liquid); and an "Inner ...
Sea-Floor Spreading - Madison County Schools
... • Using a submarine named Alvin, scientists were able to look into a rift valley and examine something called pillow lava, which is a special type of solid rock that only forms on the ocean floor when magma cools very rapidly. This proved that new molten material was being added to the ocean floor a ...
... • Using a submarine named Alvin, scientists were able to look into a rift valley and examine something called pillow lava, which is a special type of solid rock that only forms on the ocean floor when magma cools very rapidly. This proved that new molten material was being added to the ocean floor a ...
The Sea Floor
... plate boundaries. As new ocean floor is created by the cooling basaltic magma the plates move away (diverge) from the mid-oceanic ridge. 2. The abyssal Plain is the deep ocean floor, characterized by thick sediments, particularly red clays and oozes, covering the basalt substrate. Underwater volcano ...
... plate boundaries. As new ocean floor is created by the cooling basaltic magma the plates move away (diverge) from the mid-oceanic ridge. 2. The abyssal Plain is the deep ocean floor, characterized by thick sediments, particularly red clays and oozes, covering the basalt substrate. Underwater volcano ...
File - GEOLOGY ROCKS!
... province quartzite limestone = marble shale = slate sandstone + shale = schist = gneiss** ** most common metamorphic rocks rocks of the Blue Ridge Mountains ...
... province quartzite limestone = marble shale = slate sandstone + shale = schist = gneiss** ** most common metamorphic rocks rocks of the Blue Ridge Mountains ...
ESChap18Volcanoes
... because it would be fueled by rhyolitic magma, which has a very high viscosity and gas content. ...
... because it would be fueled by rhyolitic magma, which has a very high viscosity and gas content. ...
8_Plate_Tectonics_n_Layers_of_the_Earth
... • Using Observations made from Earth’s surface: • Data from Earthquakes and Volcanic Eruptions • S Waves & P Waves • Studying Magma • Studying the Ocean Floor • Lava – Molten rock(magma) that reaches Earth’s surface ...
... • Using Observations made from Earth’s surface: • Data from Earthquakes and Volcanic Eruptions • S Waves & P Waves • Studying Magma • Studying the Ocean Floor • Lava – Molten rock(magma) that reaches Earth’s surface ...
Sea-Floor Spreading - Madison County Schools
... • Using a submarine named Alvin, scientists were able to look into a rift valley and examine something called pillow lava, which is a special type of solid rock that only forms on the ocean floor when magma cools very rapidly. This proved that new molten material was being added to the ocean floor a ...
... • Using a submarine named Alvin, scientists were able to look into a rift valley and examine something called pillow lava, which is a special type of solid rock that only forms on the ocean floor when magma cools very rapidly. This proved that new molten material was being added to the ocean floor a ...
Plate Tectonics
... The lithosphere is a hard shell of strong rock about 100 km thick that floats on the hot, plastic asthenosphere. The lithosphere is broken into several large plates (and several smaller ones) that glide slowly (1-16 cm/yr), and move continents and oceans with them. Fig. 6-8, p.131 ...
... The lithosphere is a hard shell of strong rock about 100 km thick that floats on the hot, plastic asthenosphere. The lithosphere is broken into several large plates (and several smaller ones) that glide slowly (1-16 cm/yr), and move continents and oceans with them. Fig. 6-8, p.131 ...
Geologic Time and the Fossil Record
... Global climate change-the carbon dioxide released from volcanoes can insulate the earth and cause its temperature to rise (constant process) -the ash shot into the atmosphere can block the sunlight from reaching the earth in the first place and cause temperatures to fall (only after an eruption) Bef ...
... Global climate change-the carbon dioxide released from volcanoes can insulate the earth and cause its temperature to rise (constant process) -the ash shot into the atmosphere can block the sunlight from reaching the earth in the first place and cause temperatures to fall (only after an eruption) Bef ...
Plate Boundaries, evidence to support Plate Tectonics, Mechanisms
... Ridge is a relative term a. 2000-3000 m higher than surrounding sea floor b. 1000-4000 km wide c. often contain central ‘rift valley’ ...
... Ridge is a relative term a. 2000-3000 m higher than surrounding sea floor b. 1000-4000 km wide c. often contain central ‘rift valley’ ...
Science 3360 - Kennesaw State University | College of Science and
... slide and the fact that the ocean floor is basaltic which differs from continental rocks which are granitic What is the main difference between basaltic rocks and granitic rocks? The theory of sea floor spreading says: •Magma comes to the ocean floor at mid-ocean ridges •The magma erupts at sub-sea ...
... slide and the fact that the ocean floor is basaltic which differs from continental rocks which are granitic What is the main difference between basaltic rocks and granitic rocks? The theory of sea floor spreading says: •Magma comes to the ocean floor at mid-ocean ridges •The magma erupts at sub-sea ...
1 01:29:27:18 01:29:31:00 Annenberg Media 2 01:29:31:02 01:30
... IN RESPONSE TO THE IDEA OF WHAT WAS THE ORIGIN-01:41:10:25 WHAT IS THE ORIGIN OF GRANITE? ...
... IN RESPONSE TO THE IDEA OF WHAT WAS THE ORIGIN-01:41:10:25 WHAT IS THE ORIGIN OF GRANITE? ...
Using Igneous Rocks to Probe the Evolution of the Lithosphere Terry
... across the country. There are no real impediments to dating and analyzing every exposed igneous rock at the surface of the continent, other than labor, cost, and organization. The geological community as a whole could also benefit from the type of systematic data collection and archiving that is mor ...
... across the country. There are no real impediments to dating and analyzing every exposed igneous rock at the surface of the continent, other than labor, cost, and organization. The geological community as a whole could also benefit from the type of systematic data collection and archiving that is mor ...
Regional metamorphism
... them to become metamorphosed. Because magmas often rise to very shallow levels in the crust (and of course often erupt), they carry their heat into low pressure environments. This heat is conducted into the rocks the magmas intrude. Consequently, contact metamorphic rocks are found adjacent to plu ...
... them to become metamorphosed. Because magmas often rise to very shallow levels in the crust (and of course often erupt), they carry their heat into low pressure environments. This heat is conducted into the rocks the magmas intrude. Consequently, contact metamorphic rocks are found adjacent to plu ...
Igneous Rocks Metamorphic Rocks Sedimentary Rocks Igneous
... The texture of such rocks is termed glassy and the rocks ...
... The texture of such rocks is termed glassy and the rocks ...
oceanic crust - Duluth High School
... • Mountains, earthquakes and volcanoes occur at plate boundaries • Divergent- ridges in ocean/rifts on land • Convergent- subduction/trenches in oceans and mountains (orogonic belt) on ...
... • Mountains, earthquakes and volcanoes occur at plate boundaries • Divergent- ridges in ocean/rifts on land • Convergent- subduction/trenches in oceans and mountains (orogonic belt) on ...
Layers of the Earth - Atlanta Public Schools
... crust and core. • The mantle is the layer under the crust. • It is up to 2,897 kilometers(1,800 miles -from here to Arizona) thick. • The mantle is made up of rocks such as silicon, aluminum, iron, and magnesium. • Top layer - hot solid rock 1590 degrees Fahrenheit • Bottom layer - hot liquid rock 3 ...
... crust and core. • The mantle is the layer under the crust. • It is up to 2,897 kilometers(1,800 miles -from here to Arizona) thick. • The mantle is made up of rocks such as silicon, aluminum, iron, and magnesium. • Top layer - hot solid rock 1590 degrees Fahrenheit • Bottom layer - hot liquid rock 3 ...
Basalt
Basalt (pronounced /bəˈsɔːlt/, /ˈbæsɒlt/, /ˈbæsɔːlt/, or /ˈbeɪsɔːlt/)is a common extrusive igneous (volcanic) rock formed from the rapid cooling of basaltic lava exposed at or very near the surface of a planet or moon. Flood basalt describes the formation in a series of lava basalt flows.