
Igneous Intrusive Powerpoint Notes
... • Texture refers to the size, shape and arrangement of grains or other constituents within a rock • Texture of igneous rocks is primarily controlled by cooling rate • Extrusive igneous rocks cool quickly at or near Earth’s surface and are typically finegrained or Aphanitic (most crystals <1 mm) • In ...
... • Texture refers to the size, shape and arrangement of grains or other constituents within a rock • Texture of igneous rocks is primarily controlled by cooling rate • Extrusive igneous rocks cool quickly at or near Earth’s surface and are typically finegrained or Aphanitic (most crystals <1 mm) • In ...
File
... What do the plates have to do with volcanoes? Most volcanoes are formed by the movement of tectonic plates on the surface of the earth. The tectonic plates are in constant motion, albeit very slow motion. They sometimes move toward each other, other times they’ll move apart, and still other times o ...
... What do the plates have to do with volcanoes? Most volcanoes are formed by the movement of tectonic plates on the surface of the earth. The tectonic plates are in constant motion, albeit very slow motion. They sometimes move toward each other, other times they’ll move apart, and still other times o ...
Plate Tectonics Review Sheet
... Geologist have used two main types of evidence to learn about Earth’s interior: Rock samples and Seismic waves Seismic waves – When earthquakes occur, they produce seismic waves. Geologists used the data from these waves to learn that the earth interior is made up of several layers Crust – a layer o ...
... Geologist have used two main types of evidence to learn about Earth’s interior: Rock samples and Seismic waves Seismic waves – When earthquakes occur, they produce seismic waves. Geologists used the data from these waves to learn that the earth interior is made up of several layers Crust – a layer o ...
Plate Tectonics Review Sheet
... Geologist have used two main types of evidence to learn about Earth’s interior: Rock samples and Seismic waves Seismic waves – When earthquakes occur, they produce seismic waves. Geologists used the data from these waves to learn that the earth interior is made up of several layers Crust – a layer o ...
... Geologist have used two main types of evidence to learn about Earth’s interior: Rock samples and Seismic waves Seismic waves – When earthquakes occur, they produce seismic waves. Geologists used the data from these waves to learn that the earth interior is made up of several layers Crust – a layer o ...
Names: ESS 315 Lab # 3 Volcanic Hazards along the
... origin stopped transmitting 77 seconds after the eruption, when they were overridden by a dense pyroclastic blast cloud. Based on this information, how fast (in miles per hour) was the blast cloud moving? Show your math. ...
... origin stopped transmitting 77 seconds after the eruption, when they were overridden by a dense pyroclastic blast cloud. Based on this information, how fast (in miles per hour) was the blast cloud moving? Show your math. ...
Plate Tectonics Inside Earth Chapter 1 Study
... 1. Scientists that went to the ocean floor in a submersible found that there was new material erupting along the mid-ocean ridge. a. The crew found strange rocks shaped like pillows b. These rocks could only have formed like this when molten material hardens quickly after erupting under water. Evi ...
... 1. Scientists that went to the ocean floor in a submersible found that there was new material erupting along the mid-ocean ridge. a. The crew found strange rocks shaped like pillows b. These rocks could only have formed like this when molten material hardens quickly after erupting under water. Evi ...
Ch.6, Sec.3 * Causes of Volcanic Eruptions
... - deep cracks, or rift zones, often will form at divergent plate boundaries ...
... - deep cracks, or rift zones, often will form at divergent plate boundaries ...
Differentiation 2: mantle, crust OUTLINE
... Formation of our moon Highland anorthosites (white), explained by low density feldspar floating to surface of magma ocean =hot! Crust formed by time of oldest lunar rocks ~4.47 Ga. Heavy impact bombardment continued until ~3.9 Ga. 3.8-3.1 Ga: Basalts fill some of the large craters (Mare) => Use this ...
... Formation of our moon Highland anorthosites (white), explained by low density feldspar floating to surface of magma ocean =hot! Crust formed by time of oldest lunar rocks ~4.47 Ga. Heavy impact bombardment continued until ~3.9 Ga. 3.8-3.1 Ga: Basalts fill some of the large craters (Mare) => Use this ...
Terms/Concepts/People/Case Hist
... volcanoes, craters form by outward explosion, are commonly less than 2 km in diameter, and occur at the summit of a volcanic cone. Similar rimmed basins form by impacts with meteorites, asteroids and comets. 7. (6)-crystallization: The growth of minerals in a fluid such as magma. 8. (6)-decompressio ...
... volcanoes, craters form by outward explosion, are commonly less than 2 km in diameter, and occur at the summit of a volcanic cone. Similar rimmed basins form by impacts with meteorites, asteroids and comets. 7. (6)-crystallization: The growth of minerals in a fluid such as magma. 8. (6)-decompressio ...
GW_Rpt_41_Appendix_07_stratigraphic_units
... Locally includes interbedded, poorly exposed, poorly indurated sedimentary and pyroclastic volcanic rocks Tb2 lithologically indistinquishable from Tb1, separated by geomorphology and structure K-Ar age date of 6.88 to 3.61 Ma ...
... Locally includes interbedded, poorly exposed, poorly indurated sedimentary and pyroclastic volcanic rocks Tb2 lithologically indistinquishable from Tb1, separated by geomorphology and structure K-Ar age date of 6.88 to 3.61 Ma ...
Review and Study Sheet BRING TO EXAM
... Know the classification chart for the 6 intrusive igneous rocks (basalt, granite, gabbro....) Textures (grain size) of intrusive rocks Textures of extrusive rocks Melting sequence of minerals (Bowen's reaction series) Felsic versus mafic magmas – where you find them... Historical volcanic eruptions ...
... Know the classification chart for the 6 intrusive igneous rocks (basalt, granite, gabbro....) Textures (grain size) of intrusive rocks Textures of extrusive rocks Melting sequence of minerals (Bowen's reaction series) Felsic versus mafic magmas – where you find them... Historical volcanic eruptions ...
Homework Assignment #3: Igneous Processes and
... information relates to magma. You know that when you swim to the bottom of a pool or go scuba diving in the ocean, you feel more pressure (usually in your ears) on you as you go down. The same is true in rock (only even more so because rock is denser than water). So, as long as magma is deep within ...
... information relates to magma. You know that when you swim to the bottom of a pool or go scuba diving in the ocean, you feel more pressure (usually in your ears) on you as you go down. The same is true in rock (only even more so because rock is denser than water). So, as long as magma is deep within ...
Chapter 10-2 - Seafloor Spreading
... the left. This shows further evidence of seafloor spreading. ...
... the left. This shows further evidence of seafloor spreading. ...
Volcanoes - Lockland Schools
... – Tall, cone-shaped mountain with layers that lava and ash alternate with _______________ – Can be more than 4,800 meters tall ___________________________ ...
... – Tall, cone-shaped mountain with layers that lava and ash alternate with _______________ – Can be more than 4,800 meters tall ___________________________ ...
Lecture 7: Rock and Minerals
... Magma: mixture of molten rock, gases and mineral phases, produced by mantle melting Mantle melts between ~800-1250ºC due to: 1) Increase in temperature 2) Decrease in pressure 3) Addition of volatile phases (e.g., water) ...
... Magma: mixture of molten rock, gases and mineral phases, produced by mantle melting Mantle melts between ~800-1250ºC due to: 1) Increase in temperature 2) Decrease in pressure 3) Addition of volatile phases (e.g., water) ...
Unit 2 Vocabulary – Plate Tectonics
... continental drift hypothesis – the continents once formed a giant landmass (Pangaea), broke apart, and then drifted to their current locations mid-ocean ridge – a continuous mountain chain on the floor of all major ocean basins seafloor spreading – process where the sea floor spreads apart along bot ...
... continental drift hypothesis – the continents once formed a giant landmass (Pangaea), broke apart, and then drifted to their current locations mid-ocean ridge – a continuous mountain chain on the floor of all major ocean basins seafloor spreading – process where the sea floor spreads apart along bot ...
volcanoes - Middletown High School
... Divergent Plate Boundaries – Plates move apart as magma comes up forming a volcano Convergent Plate Boundaries – Oceanic Plates subduct under Continental Plates and melt into magma that will sometime rise to form a volcano ...
... Divergent Plate Boundaries – Plates move apart as magma comes up forming a volcano Convergent Plate Boundaries – Oceanic Plates subduct under Continental Plates and melt into magma that will sometime rise to form a volcano ...
Plate motion, earthquakes, and volcanoes
... When things flow slow, they have low viscosity and the lava moves as slowly as in inches per hour Ash and other aerosols can block out the Sun, making ...
... When things flow slow, they have low viscosity and the lava moves as slowly as in inches per hour Ash and other aerosols can block out the Sun, making ...
Volcano Notes
... 2. Composite Volcanoes – these are formed by a combination of both types of lava. These volcanoes give off pyroclastic material and have extremely explosive eruptions. Composite cones are the most common kind of volcano. Example: Mount St. Helens 3. Shield Volcanoes – these look like an ancient shi ...
... 2. Composite Volcanoes – these are formed by a combination of both types of lava. These volcanoes give off pyroclastic material and have extremely explosive eruptions. Composite cones are the most common kind of volcano. Example: Mount St. Helens 3. Shield Volcanoes – these look like an ancient shi ...
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.