Lecture 19.
... A volcano is generally a conical shaped hill or mountain built by accumulations of lava flows, tephra, and volcanic ash. About 95% of active volcanoes occur at the plate subduction zones and at the mid-oceanic ridges. The other 5% occur in areas associated with lithospheric hot spots. These hot spot ...
... A volcano is generally a conical shaped hill or mountain built by accumulations of lava flows, tephra, and volcanic ash. About 95% of active volcanoes occur at the plate subduction zones and at the mid-oceanic ridges. The other 5% occur in areas associated with lithospheric hot spots. These hot spot ...
Fire Quided _s KEY
... 1. Mt. Saint Helens is the (smallest/largest) of the volcanoes that make up the Cascade Mountain Range. 2. What does it mean if a volcano is described as ‘dormant’? It is inactive and/or it describes the time in between eruptions. 3. What other Washington volcanoes (3) are mentioned in this section? ...
... 1. Mt. Saint Helens is the (smallest/largest) of the volcanoes that make up the Cascade Mountain Range. 2. What does it mean if a volcano is described as ‘dormant’? It is inactive and/or it describes the time in between eruptions. 3. What other Washington volcanoes (3) are mentioned in this section? ...
Plate Tectonics Review Sheet for Final
... The epicenter of an earthquake is the imaginary point on the earth’s surface above the focus. Primary waves (P-waves) are seismic waves that arrive first. They compress and expand the ground. Secondary waves (S-waves) are seismic waves that arrive second. They move the ground up and down or si ...
... The epicenter of an earthquake is the imaginary point on the earth’s surface above the focus. Primary waves (P-waves) are seismic waves that arrive first. They compress and expand the ground. Secondary waves (S-waves) are seismic waves that arrive second. They move the ground up and down or si ...
Rocks - rozyckiphsscience
... Also called basaltic rocks Dark-colored and dense Lower silica content (50%) Contain minerals feldspar, biotite, amphibolite, pyroxene, and olivine • Rich in iron and magnesium • Part of oceanic crust and volcanic islands • Examples: basalt (most common) (read about in ...
... Also called basaltic rocks Dark-colored and dense Lower silica content (50%) Contain minerals feldspar, biotite, amphibolite, pyroxene, and olivine • Rich in iron and magnesium • Part of oceanic crust and volcanic islands • Examples: basalt (most common) (read about in ...
volcano type.sxi - Milan Area Schools
... A. Deep inside Earth, heat & pressure changes cause rock to melt B. Melted rock is less dense than solid rock so it is slowly forced up C. After a long period of time, the magma reaches the surface & flows out of a vent D. When the lava flows out, it cools, forming layers of igneous rock around the ...
... A. Deep inside Earth, heat & pressure changes cause rock to melt B. Melted rock is less dense than solid rock so it is slowly forced up C. After a long period of time, the magma reaches the surface & flows out of a vent D. When the lava flows out, it cools, forming layers of igneous rock around the ...
Name: Date: Earth and Environmental FINAL Study Guide What is a
... 15. What is the Continental Drift Theory and who proposed it? Identify all of the pieces of evidence for the theory. What is Pangaea? ...
... 15. What is the Continental Drift Theory and who proposed it? Identify all of the pieces of evidence for the theory. What is Pangaea? ...
Volcano and volcanic hazards test questions
... tuffs d) volcanic debris flows or mudflows e) associated with shield volcanoes 20. Lava domes are most commonly associated with: a) basaltic lava b) felsic or more silica rich lava c) mafic lava d) divergent tectonic boundaries e) shield volcanoes 21. The great 1980 debris avalanche at Mount St. Hel ...
... tuffs d) volcanic debris flows or mudflows e) associated with shield volcanoes 20. Lava domes are most commonly associated with: a) basaltic lava b) felsic or more silica rich lava c) mafic lava d) divergent tectonic boundaries e) shield volcanoes 21. The great 1980 debris avalanche at Mount St. Hel ...
for true or “F” - University of South Alabama
... 1. Isolated tetrahedra: SiO4 tetrahedra do not share any corners. Each tetrahedron is held in place by bonds with other atoms such as Mg or Fe. A mineral example would be olivine. 2. Single Chain: in the single chain structure each SiO4 tetrahedron shares 2 corners with an adjacent tetrahedron to fo ...
... 1. Isolated tetrahedra: SiO4 tetrahedra do not share any corners. Each tetrahedron is held in place by bonds with other atoms such as Mg or Fe. A mineral example would be olivine. 2. Single Chain: in the single chain structure each SiO4 tetrahedron shares 2 corners with an adjacent tetrahedron to fo ...
The Lithosphere of Earth
... 1. Why study? • Thermal state • Thermal history • Composition of interior • Geothermal / Hazards • Comparative planetology ...
... 1. Why study? • Thermal state • Thermal history • Composition of interior • Geothermal / Hazards • Comparative planetology ...
Lecture Notes: CH 10
... Sills and ______________ Are _________ that form when magma is __________________ to the surface. Sills ________________________________ and may exhibit columnar joints. Laccoliths are _________-shaped masses that arch overlying strata upward. Dikes ______-shaped intrusive igneous features tha ...
... Sills and ______________ Are _________ that form when magma is __________________ to the surface. Sills ________________________________ and may exhibit columnar joints. Laccoliths are _________-shaped masses that arch overlying strata upward. Dikes ______-shaped intrusive igneous features tha ...
Structure of the Earth - Mercer Island School District
... through any matter S waves (Secondary): Transverse waves. Can only travel through solid matter. ...
... through any matter S waves (Secondary): Transverse waves. Can only travel through solid matter. ...
Mineral – Naturally formed solids that are not made from living
... Igneous Rock – Word meaning “from fire.” Rock that formed from magma or lava. “Ignite means to light fire” 2 Types of Igneous Rock 1. Intrusive – Rock formed from inside the Earth from magma. Magma cools slowly = coarse large-grained minerals/crystals. Ex: Gabbro, diorite, granite 2. Extrusive – Mo ...
... Igneous Rock – Word meaning “from fire.” Rock that formed from magma or lava. “Ignite means to light fire” 2 Types of Igneous Rock 1. Intrusive – Rock formed from inside the Earth from magma. Magma cools slowly = coarse large-grained minerals/crystals. Ex: Gabbro, diorite, granite 2. Extrusive – Mo ...
Chapter 10 Notes: Volcanoes and Other Igneous Activity Name: The
... iv. Batholiths 1. Batholiths are large masses of igneous rock that formed when magma intruded at depth, became crystallized, and subsequently was exposed by erosion. 2. An intrusive igneous body must have a surface exposure ____________________ to be considered a batholith ...
... iv. Batholiths 1. Batholiths are large masses of igneous rock that formed when magma intruded at depth, became crystallized, and subsequently was exposed by erosion. 2. An intrusive igneous body must have a surface exposure ____________________ to be considered a batholith ...
Magnetic Reversals
... "records" the prevailing magnetic field. The newly formed basalt sticks to the plates and is also pulled away--some of it towards Europe and Africa, some towards America. Every half million years, on the average, the Earth's magnetic polarity reverses, and so does the magnetization of the ocean floo ...
... "records" the prevailing magnetic field. The newly formed basalt sticks to the plates and is also pulled away--some of it towards Europe and Africa, some towards America. Every half million years, on the average, the Earth's magnetic polarity reverses, and so does the magnetization of the ocean floo ...
Geology 101 Origin of Magma From our discussions of the structure
... A common answer that people give is that increased temperature will cause a rock to melt. Although this is true, there are two other factors that have an important affect in melting: the pressure on the rock and the amount of water present. In general, thermal energy causes the atoms to move more ra ...
... A common answer that people give is that increased temperature will cause a rock to melt. Although this is true, there are two other factors that have an important affect in melting: the pressure on the rock and the amount of water present. In general, thermal energy causes the atoms to move more ra ...
Newark Basin
... Most of the Watchung Mountains throughout central New Jersey are examples of extrusive igneous rocks, displaying characteristic columnar jointing and stacked lava flows. ...
... Most of the Watchung Mountains throughout central New Jersey are examples of extrusive igneous rocks, displaying characteristic columnar jointing and stacked lava flows. ...
Rock cycle, snap! - Teachit Geography
... the process of changing from a solid rock to a liquid rock ...
... the process of changing from a solid rock to a liquid rock ...
CH. 10.2 Intrusive Igneous Activity “What`s a pluton?” Structures that
... Solid rock located in the crust and upper mantle melts. ...
... Solid rock located in the crust and upper mantle melts. ...
8H - UCC Revision
... Creationism says that the Earth was formed in a few days by a divine being. Different religions have different creation stories. Most people do not regard this as a scientific theory any more. Catastrophism says that all rocks were formed by sudden events such as volcanic eruptions. Some rocks are f ...
... Creationism says that the Earth was formed in a few days by a divine being. Different religions have different creation stories. Most people do not regard this as a scientific theory any more. Catastrophism says that all rocks were formed by sudden events such as volcanic eruptions. Some rocks are f ...
Layers of the Earth (Notes 1/5)
... 2. Mantle: hot & solid rock a. Lithosphere: Upper, rigid part of the mantle b. Asthenosphere: Middle, soft layer of the ...
... 2. Mantle: hot & solid rock a. Lithosphere: Upper, rigid part of the mantle b. Asthenosphere: Middle, soft layer of the ...
Poetry Test Study Guide
... Dear Parents & Students, Your signature below indicates that you are aware that there will be a test in Science on Friday, December 16, 2011. Parents, please quiz your child at home using this study guide and additional ...
... Dear Parents & Students, Your signature below indicates that you are aware that there will be a test in Science on Friday, December 16, 2011. Parents, please quiz your child at home using this study guide and additional ...
Volcanoes and Plate Tectonics
... • Hot rock forced toward the crust where it melts partially to form a hot spot. • Pacific Plate is moving over a stationary hot spot. ...
... • Hot rock forced toward the crust where it melts partially to form a hot spot. • Pacific Plate is moving over a stationary hot spot. ...
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.