Rocks - Dallastown
... Drill: You find an igneous rock with both coarse and fine grains. Describe how this rock could have formed. Objective: SWBAT review basic concepts of the Rock Cycle in order to prepare for the test. ...
... Drill: You find an igneous rock with both coarse and fine grains. Describe how this rock could have formed. Objective: SWBAT review basic concepts of the Rock Cycle in order to prepare for the test. ...
1.Identify this rock.
... Obsidian Butte Obsidian Butte is a single dome of rhyolite. At the coordinates, the dome is made up of gray to black rhyolite pumice and obsidian. Pumice is a light air-filled volcanic glass. It can be described as a rock sponge because of the rock is filled with frozen gas bubbles. Pumice forms du ...
... Obsidian Butte Obsidian Butte is a single dome of rhyolite. At the coordinates, the dome is made up of gray to black rhyolite pumice and obsidian. Pumice is a light air-filled volcanic glass. It can be described as a rock sponge because of the rock is filled with frozen gas bubbles. Pumice forms du ...
Inside Earth 3-2 Worksheets 2013
... Match the type of rock with its description: _____ rhyolite A. has the same composition as granite _____ obsidian B. forms from low-silica lava _____ pumice C. Forms when high-silica lava cools very quickly _____ basalt D. Forms when gas bubbles are trapped in cooling lava ∆Types of Volcanic Erupti ...
... Match the type of rock with its description: _____ rhyolite A. has the same composition as granite _____ obsidian B. forms from low-silica lava _____ pumice C. Forms when high-silica lava cools very quickly _____ basalt D. Forms when gas bubbles are trapped in cooling lava ∆Types of Volcanic Erupti ...
Volcanic Landforms
... Some volcanic landforms are formed when lava flows build up mountains and plateaus on Earth’s surface. Volcanic eruptions create landforms made of lava, ash, and other materials. These landforms include shield volcanoes, cinder cone volcanoes, composite volcanoes, and lava plateaus. At some places o ...
... Some volcanic landforms are formed when lava flows build up mountains and plateaus on Earth’s surface. Volcanic eruptions create landforms made of lava, ash, and other materials. These landforms include shield volcanoes, cinder cone volcanoes, composite volcanoes, and lava plateaus. At some places o ...
What mainly controls eruptive style? Viscosity in magma 2. Eruptive
... Tom Sisson of USGS estimates its age at ~100 ka ...
... Tom Sisson of USGS estimates its age at ~100 ka ...
Chapter 18 - Volcanoes
... 1. Temperature increases with depth 2. Increased pressure increases melting point 3. Increased water content decreases melting point ...
... 1. Temperature increases with depth 2. Increased pressure increases melting point 3. Increased water content decreases melting point ...
Volcanoes: eruptive style and associated landforms
... 1.Volcanic eruption 2. Large volume of material extruded 3. Magma chamber empties 4. Volcano collapses into the empty magma chamber ...
... 1.Volcanic eruption 2. Large volume of material extruded 3. Magma chamber empties 4. Volcano collapses into the empty magma chamber ...
File
... • Vent is escape route. Main is largest side are lateral vents • Pipe is neck to chamber • Crater is top of vent • Magma is liquid rocks and hot gasses Draw pg 95 ...
... • Vent is escape route. Main is largest side are lateral vents • Pipe is neck to chamber • Crater is top of vent • Magma is liquid rocks and hot gasses Draw pg 95 ...
chapter 9 vocabulary terms
... Composite Cone (p. 260) – A volcano composed of both lava flows and pyroclastic materials. ...
... Composite Cone (p. 260) – A volcano composed of both lava flows and pyroclastic materials. ...
6th Grade Honors Final Exam Review 2013
... Dome mountain – landform which is caused when magma forces the layers of rock to bend upward ...
... Dome mountain – landform which is caused when magma forces the layers of rock to bend upward ...
- ILM.COM.PK
... Figures 5.7 a and b Flood basalts (A) A real extent of Columbia River flood basalts. (B) Multiple lava flows, one atop another, can be seen in an outcrop of these flows in Washington state. ...
... Figures 5.7 a and b Flood basalts (A) A real extent of Columbia River flood basalts. (B) Multiple lava flows, one atop another, can be seen in an outcrop of these flows in Washington state. ...
Introduction to volcanoes, volcanic eruptions, and volcanic
... Lower viscosity basaltic lava (mafic) is ~45% to 54% silica ...
... Lower viscosity basaltic lava (mafic) is ~45% to 54% silica ...
Additional notes on management of volcanic hazards
... Water supply contaminated with ash and acid rain ...
... Water supply contaminated with ash and acid rain ...
Mount Kilauea, HI
... Ring of Fire that borders the Pacific Ocean. The 1991 eruption came some 450 – 500 years after the last known eruptive activity. This is the largest eruption that has occurred that anyone can remember and the second largest land eruption in the 20th century. Mount Pinatubo is a large, nearly symmetr ...
... Ring of Fire that borders the Pacific Ocean. The 1991 eruption came some 450 – 500 years after the last known eruptive activity. This is the largest eruption that has occurred that anyone can remember and the second largest land eruption in the 20th century. Mount Pinatubo is a large, nearly symmetr ...
forms of intrusive igneous rocks
... • Vertical to steeply inclined and sheetlike body (extensive in lateral dimension) • Thickness vary widely from an inch upto hundred of feet • Injected through fractures, joints, and weak planes ...
... • Vertical to steeply inclined and sheetlike body (extensive in lateral dimension) • Thickness vary widely from an inch upto hundred of feet • Injected through fractures, joints, and weak planes ...
Assignment #21 - hrsbstaff.ednet.ns.ca
... texture = size, shape, arrangement of crystals that comprise the rock - in most cases extrusive rocks are fine grained - obsidian not comprised of minerals = glass, due to instantaneous cooling - porphyritic texture = does not have a uniform fine grained texure (in text describe porphyrtic rocks com ...
... texture = size, shape, arrangement of crystals that comprise the rock - in most cases extrusive rocks are fine grained - obsidian not comprised of minerals = glass, due to instantaneous cooling - porphyritic texture = does not have a uniform fine grained texure (in text describe porphyrtic rocks com ...
Igneous Intrusions
... and volcanic necks are sometimes called plutons. However, some scientists identify only the largest, thickest intrusions as plutons. A pluton reaches Earth’s surface only after uplift, weathering, or both take place. As the diagram above indicates, dikes and sills are sheets of magma intruded into p ...
... and volcanic necks are sometimes called plutons. However, some scientists identify only the largest, thickest intrusions as plutons. A pluton reaches Earth’s surface only after uplift, weathering, or both take place. As the diagram above indicates, dikes and sills are sheets of magma intruded into p ...
Popular classification of volcanoes
... Super-volcano: the great devastator A super-volcano is a large volcano that usually has a large caldera and can potentially produce devastation on an enormous, sometimes continental, scale. Such eruptions would be able to cause severe cooling of global temperatures for many years afterwards because ...
... Super-volcano: the great devastator A super-volcano is a large volcano that usually has a large caldera and can potentially produce devastation on an enormous, sometimes continental, scale. Such eruptions would be able to cause severe cooling of global temperatures for many years afterwards because ...
GEOLOGY 1313 EARTHQUAKES AND VOLCANOES
... Plinian - (High: VEI=3-8) (rhyolite-andesite, rarely basalt) ash columns injected <10-50 km into the atmosphere; construct Stratovolcanoes & Calderas Caldera – (High: VEI=6-8) (rhyolite-andesite) most explosive-largest volume; magma chamber roof collapses & partially empties into huge ash columns; f ...
... Plinian - (High: VEI=3-8) (rhyolite-andesite, rarely basalt) ash columns injected <10-50 km into the atmosphere; construct Stratovolcanoes & Calderas Caldera – (High: VEI=6-8) (rhyolite-andesite) most explosive-largest volume; magma chamber roof collapses & partially empties into huge ash columns; f ...
Volcanoes BELL WORK March 18 through march 28th
... Monday, March 18th • What is a magma chamber, and what are two ways the magma gets from magma chamber to the surface of the Earth? • What are two types of volcanic fields? • How is a caldera formed? • What is an igneous rock? ...
... Monday, March 18th • What is a magma chamber, and what are two ways the magma gets from magma chamber to the surface of the Earth? • What are two types of volcanic fields? • How is a caldera formed? • What is an igneous rock? ...
Chapter 6 Study Guide
... The molten mixture of rock – forming substance, gases, and water deep in Earth’s mantle is called ______________________. The belt around the rim of the Pacific Ocean is called ___________. Thicker magma contains more ______________________. What is a wide gently sloping mountain made of hardened la ...
... The molten mixture of rock – forming substance, gases, and water deep in Earth’s mantle is called ______________________. The belt around the rim of the Pacific Ocean is called ___________. Thicker magma contains more ______________________. What is a wide gently sloping mountain made of hardened la ...
Mount Pleasant Caldera
The Mount Pleasant Caldera is a large eroded Late Devonian volcanic caldera complex, located in the northern Appalachian Mountains of southwestern New Brunswick, Canada. It is one of few noticeable pre-Cenozoic calderas, and its formation is associated to a period of crustal thinning that followed the Acadian orogeny in the northern Appalachian Mountains.It sits relatively near to the coastline.