6th grade PASS Review
... What is the difference between the focus and the epicenter of an Earthquake? A. The focus is the amount of energy released, and the epicenter is the location where the most damage occurs. B. The focus is the location where the most damage occurs, and the epicenter is the amount of energy released. ...
... What is the difference between the focus and the epicenter of an Earthquake? A. The focus is the amount of energy released, and the epicenter is the location where the most damage occurs. B. The focus is the location where the most damage occurs, and the epicenter is the amount of energy released. ...
Minerals and Rocks
... Its basaltic composition is described more fully in the next section. Compared to continental crust, oceanic crust is quite thin because its density (3.0 g/cm3) is greater than that of continental crust (2.7 g/cm3). Forming the vast, deep ocean floors as well as lava flows on all of the continents, ...
... Its basaltic composition is described more fully in the next section. Compared to continental crust, oceanic crust is quite thin because its density (3.0 g/cm3) is greater than that of continental crust (2.7 g/cm3). Forming the vast, deep ocean floors as well as lava flows on all of the continents, ...
Rocks and the Rock Cycle - Johnston County Schools
... • Basalt and Gabbro differ not in composition, but in crystallinity; likewise Rhyolite and Granite. • Basalt and Gabbro differ in relative composition, of the five major constituents above, from Rhyolite and Granite. • Basalt and Rhyolite have small crystals because they are erupted by volcanoes and ...
... • Basalt and Gabbro differ not in composition, but in crystallinity; likewise Rhyolite and Granite. • Basalt and Gabbro differ in relative composition, of the five major constituents above, from Rhyolite and Granite. • Basalt and Rhyolite have small crystals because they are erupted by volcanoes and ...
Section 2: Igneous Rock
... When magma cools slowly at first, but then cools more rapidly as it nears Earth’s surface, the igneous rock that forms may have large crystals embedded within a mass of smaller crystals. This texture is called porphyritic texture. When highly viscous magma cools very rapidly, few crystals will g ...
... When magma cools slowly at first, but then cools more rapidly as it nears Earth’s surface, the igneous rock that forms may have large crystals embedded within a mass of smaller crystals. This texture is called porphyritic texture. When highly viscous magma cools very rapidly, few crystals will g ...
the Scanned PDF
... tated phenocrystsat an early stage from the alkali basalts, were estimated from optical properties to range from An75to Anss.Thus the cores of the plagioclase phenocryst have essentially the same composition as the plagioclasein wehrlite and gabbro inclusions. The Iki plagioclasehas up to 0.9 percen ...
... tated phenocrystsat an early stage from the alkali basalts, were estimated from optical properties to range from An75to Anss.Thus the cores of the plagioclase phenocryst have essentially the same composition as the plagioclasein wehrlite and gabbro inclusions. The Iki plagioclasehas up to 0.9 percen ...
Do Now
... another plate, water from the subducted plate causes the overlying mantel to melt. • Plutons often form when the melted material rises but does not erupt at the ...
... another plate, water from the subducted plate causes the overlying mantel to melt. • Plutons often form when the melted material rises but does not erupt at the ...
pdf for preview - sciencepowerpoint.com
... Please case study a volcanic eruption and one earthquake in the spaces below. When and where did these natural disasters occur? What damage / destruction did they cause? Please provide some additional specifics. Yes, you will need to do some research. Impress ...
... Please case study a volcanic eruption and one earthquake in the spaces below. When and where did these natural disasters occur? What damage / destruction did they cause? Please provide some additional specifics. Yes, you will need to do some research. Impress ...
Plate Tectonics - Purdue University
... Prior to 1900s, sea floor was thought to be flat. WWI and WWII: sonar used to map the ocean floor. Linear underwater mountain ranges in every ocean = Mid-Ocean Ridges 1947: the sediment layer on the ocean floor is very thin. If oceans were the same age as the continents (billions of years), where wa ...
... Prior to 1900s, sea floor was thought to be flat. WWI and WWII: sonar used to map the ocean floor. Linear underwater mountain ranges in every ocean = Mid-Ocean Ridges 1947: the sediment layer on the ocean floor is very thin. If oceans were the same age as the continents (billions of years), where wa ...
Vocabulary Quiz #26 4/4/11- 4/8/11
... Vocabulary Quiz #26 4/4/11- 4/8/11 1. continental drift- the hypothesis that the continents slowly move across Earth’s surface. 2. convection currents- the movement of a fluid, caused by differences in temperature, that transfers thermal energy from one place to another. 3. mid-ocean ridge- the unde ...
... Vocabulary Quiz #26 4/4/11- 4/8/11 1. continental drift- the hypothesis that the continents slowly move across Earth’s surface. 2. convection currents- the movement of a fluid, caused by differences in temperature, that transfers thermal energy from one place to another. 3. mid-ocean ridge- the unde ...
Igneous Rocks - Northside Middle School
... Dikes are small igneous intrusions that cut across rocks into which the magma intrudes. They are commonly sheet-like, only a few meters wide, but possibly laterally extensive. Think of magma invading a vertical or near-vertical fracture in rock. Igneous rock would fill the crack due to crystallizati ...
... Dikes are small igneous intrusions that cut across rocks into which the magma intrudes. They are commonly sheet-like, only a few meters wide, but possibly laterally extensive. Think of magma invading a vertical or near-vertical fracture in rock. Igneous rock would fill the crack due to crystallizati ...
Oceanic crust
... Continental crust • The first continental rocks were the result of repeated melting, cooling, and remixing of oceanic crust, driven by volcanic activity above mantle convection cells, which were much more numerous and vigorous than today’s. • Geologists believe that the major continental cores were ...
... Continental crust • The first continental rocks were the result of repeated melting, cooling, and remixing of oceanic crust, driven by volcanic activity above mantle convection cells, which were much more numerous and vigorous than today’s. • Geologists believe that the major continental cores were ...
슬라이드 1
... not in the mantle but within the continental crust of andesitic composition, gas-rich (continental crust – rich in water vapor and CO2) Andesitic magma – on both the oceanic and continental crusts → formed in the mantle, geographical distribution (Ring of Fire, Andestic Line – parallel to the plat ...
... not in the mantle but within the continental crust of andesitic composition, gas-rich (continental crust – rich in water vapor and CO2) Andesitic magma – on both the oceanic and continental crusts → formed in the mantle, geographical distribution (Ring of Fire, Andestic Line – parallel to the plat ...
Geologic Road Log Cumbres and Toltec Scenic Railroad A
... A Regional Setting Our journey between Chama and Antonito today takes us from the San Juan Basin, across the Tusas Mountains, and into the San Luis Basin (Figure 1). The San Juan Basin on the Colorado Plateau is an important oil-producing basin that formed during compressional deformation 75 to 55 m ...
... A Regional Setting Our journey between Chama and Antonito today takes us from the San Juan Basin, across the Tusas Mountains, and into the San Luis Basin (Figure 1). The San Juan Basin on the Colorado Plateau is an important oil-producing basin that formed during compressional deformation 75 to 55 m ...
New Title - Geneva Area City Schools
... evenly curved surfaces. Some minerals break into pieces with jagged surfaces. Cleavage is a mineral’s tendency to split apart along regular, well-defined planes. For example, mica splits into sheets, and halite splits into cubes. ...
... evenly curved surfaces. Some minerals break into pieces with jagged surfaces. Cleavage is a mineral’s tendency to split apart along regular, well-defined planes. For example, mica splits into sheets, and halite splits into cubes. ...
Inside the Earth Ch. 4 Section 1
... Asthenosphere: upper mantle; layer of weakened rock between crust and mantle; means “weak sphere” • Extremely thick; 2/3 of the Earth’s mass • No one has ever seen this layer; observations made from surface (volcanoes/lava) • Made of almost solid rock (magma), flows slowly like thick tar or fudge ...
... Asthenosphere: upper mantle; layer of weakened rock between crust and mantle; means “weak sphere” • Extremely thick; 2/3 of the Earth’s mass • No one has ever seen this layer; observations made from surface (volcanoes/lava) • Made of almost solid rock (magma), flows slowly like thick tar or fudge ...
Volcanic Activity
... There are three main types of magma: basaltic, andesitic, and rhyolitic. They differ in many ways. The main difference between them is the kind of rock they are composed of. Another difference is in their viscosity. Viscosity is how resistant the material is to flowing. Honey has a higher viscosity ...
... There are three main types of magma: basaltic, andesitic, and rhyolitic. They differ in many ways. The main difference between them is the kind of rock they are composed of. Another difference is in their viscosity. Viscosity is how resistant the material is to flowing. Honey has a higher viscosity ...
APES_Chapter_16_Part_1_Geology_Guided_Power_Point_Notes
... 22. Minerals are an element or inorganic compound that occurs ___________________________ and is a solid (gold, silver, salt, quartz are all minerals found in the Earth). 23. The Three Types of Rocks are : Igneous Rock: formed below or on Earth’s surface when _____________ (molten rock) wells up, co ...
... 22. Minerals are an element or inorganic compound that occurs ___________________________ and is a solid (gold, silver, salt, quartz are all minerals found in the Earth). 23. The Three Types of Rocks are : Igneous Rock: formed below or on Earth’s surface when _____________ (molten rock) wells up, co ...
Chapter 22.1: Earth’s Structure
... 1. Compare how constructive and destructive forces affect Earth’s surface. 2. List the 3 layers of Earth. 3. Which layer has currents of moving rock? 4. Which is the most dense layer? 5. Which layer is made of light rocks like silicates? 6. Which is more dense: Continental or Oceanic ...
... 1. Compare how constructive and destructive forces affect Earth’s surface. 2. List the 3 layers of Earth. 3. Which layer has currents of moving rock? 4. Which is the most dense layer? 5. Which layer is made of light rocks like silicates? 6. Which is more dense: Continental or Oceanic ...
File - Hoblitzell`s Science Spot
... • Molten rock is slightly less dense than solid rock around it so it RISES through fractures or makes its own path as it rises. Rate of magma movement determined by SILICA CONTENT. 2 TYPES of magma/ lava 1. FELSIC/ GRANITIC – high silica content (>65%), thick, slow moving (viscous) 2. MAFIC/ BASALTI ...
... • Molten rock is slightly less dense than solid rock around it so it RISES through fractures or makes its own path as it rises. Rate of magma movement determined by SILICA CONTENT. 2 TYPES of magma/ lava 1. FELSIC/ GRANITIC – high silica content (>65%), thick, slow moving (viscous) 2. MAFIC/ BASALTI ...
Chapter 8 - SchoolRack
... 2) Cinder Cone Volcanoes - are small volcanic cones made entirely of pyroclastic material from moderately explosive eruptions These volcanoes have narrow bases and steeper slopes Cinder cone volcanoes usually erupt for a short period of time and occur in clusters These volcanoes erode quickl ...
... 2) Cinder Cone Volcanoes - are small volcanic cones made entirely of pyroclastic material from moderately explosive eruptions These volcanoes have narrow bases and steeper slopes Cinder cone volcanoes usually erupt for a short period of time and occur in clusters These volcanoes erode quickl ...
Chapter 7 Study Guide for 9 weeks test 1. Volcanic belts form along
... 28. Magma that forces across rock layers hardens into a dike. (221) 29. Dissolved gases that are trapped in magma provide the force that causes magma to erupt to the surface. (210) 30. How easily lava flows depends upon its silica content and temperature. (207) 31. Viscosity decreases with temperatu ...
... 28. Magma that forces across rock layers hardens into a dike. (221) 29. Dissolved gases that are trapped in magma provide the force that causes magma to erupt to the surface. (210) 30. How easily lava flows depends upon its silica content and temperature. (207) 31. Viscosity decreases with temperatu ...
How does a volcano erupt? - Germantown School District
... Earth’s crust when molten material, or magma, reaches the surface. – Magma: Molten mixture of rock-forming substances, gases, and water from the mantle. (beneath the surface) – Lava: Magma that reaches Earth’s surface. (on the surface) ...
... Earth’s crust when molten material, or magma, reaches the surface. – Magma: Molten mixture of rock-forming substances, gases, and water from the mantle. (beneath the surface) – Lava: Magma that reaches Earth’s surface. (on the surface) ...
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.