yr9-end of year exams-revision-flash cards-evt
... Convergent (destructive) plate boundary where an oceanic (e.g. Nazca) and continental (e.g. South American) plate move towards each other due to convection currents. - Denser (heavier) oceanic crust is subducted below the continental plate, forming a deep ocean trench - Heat from the mantle & fricti ...
... Convergent (destructive) plate boundary where an oceanic (e.g. Nazca) and continental (e.g. South American) plate move towards each other due to convection currents. - Denser (heavier) oceanic crust is subducted below the continental plate, forming a deep ocean trench - Heat from the mantle & fricti ...
BOWEN`S REACTION SERIES
... plutonic rocks, those that crystallize entirely underground. Its hightemperature (1000°C melting point) volcanic equivalent - with the same formula but a different crystal structure - is the mineral sanidine, which is common in high-silica volcanic rocks. Minerals near the bottom of the series also ...
... plutonic rocks, those that crystallize entirely underground. Its hightemperature (1000°C melting point) volcanic equivalent - with the same formula but a different crystal structure - is the mineral sanidine, which is common in high-silica volcanic rocks. Minerals near the bottom of the series also ...
- Catalyst
... 17. How can one best explain the seismic wave properties shown in the above diagram. a. refraction of seismic waves due to density changes b. absorption of seismic waves due to phase change from solid to liquid c. refraction of seismic waves due to wave amplitude d. all of the above answers are corr ...
... 17. How can one best explain the seismic wave properties shown in the above diagram. a. refraction of seismic waves due to density changes b. absorption of seismic waves due to phase change from solid to liquid c. refraction of seismic waves due to wave amplitude d. all of the above answers are corr ...
Chapter 22 Notes
... by the solidification of magma. They are classified according to their size and shape and their orientation with respect to the surrounding rock. Discordant means the pluton cuts across the grain of the surrounding rock and concordant means it lies in the same direction as the grain of the surroundi ...
... by the solidification of magma. They are classified according to their size and shape and their orientation with respect to the surrounding rock. Discordant means the pluton cuts across the grain of the surrounding rock and concordant means it lies in the same direction as the grain of the surroundi ...
Earthquakes
... • A type of seismic body wave that compresses and expands the ground • The first wave to arrive at an earthquake • When they reach the surface, they cause rock to move back and forth. http://daphne.meccahosting.com/~a0000e89/insideearth2.htm ...
... • A type of seismic body wave that compresses and expands the ground • The first wave to arrive at an earthquake • When they reach the surface, they cause rock to move back and forth. http://daphne.meccahosting.com/~a0000e89/insideearth2.htm ...
Life its not easy
... stream is flowing swiftly and/or flowing down a steep slope. Metamorphism: is the process by which rocks in the Earth’s crust are changed by the effects of heat and pressure. Melting: back to magma. To go from a solid state to a liquid state. Denudation: the total effect of all actions (wxg mass was ...
... stream is flowing swiftly and/or flowing down a steep slope. Metamorphism: is the process by which rocks in the Earth’s crust are changed by the effects of heat and pressure. Melting: back to magma. To go from a solid state to a liquid state. Denudation: the total effect of all actions (wxg mass was ...
Application cases of the offer Magnetic inversion
... The value for density layers (in g/cm3), the following: water (1.03), sediment (2.1), the oceanic crust (2.8-3.0) and mantle (3.1-3.3). Isostatic principle is applied in the first stage of modeling. It is characterized the uniform pressure geological unit at the depth of 65 km for different combinat ...
... The value for density layers (in g/cm3), the following: water (1.03), sediment (2.1), the oceanic crust (2.8-3.0) and mantle (3.1-3.3). Isostatic principle is applied in the first stage of modeling. It is characterized the uniform pressure geological unit at the depth of 65 km for different combinat ...
Goldschmidt2007
... For a better understanding of eruption mechanisms it is important to investigate the rheological behaviour of the magma during its ascent in the conduit. We can reveal this information by measuring the physico-chemical properties of volcanic ejecta. Between 16th and 18th of August 2006 a large erupt ...
... For a better understanding of eruption mechanisms it is important to investigate the rheological behaviour of the magma during its ascent in the conduit. We can reveal this information by measuring the physico-chemical properties of volcanic ejecta. Between 16th and 18th of August 2006 a large erupt ...
Volcanoes - National Geographic Society
... About 90 percent of the world's volcanoes can be found in the Ring of Fire, where tectonic plates meet around the rim of the Pacific Ocean. Worldwide there are 1,900 active volcanoes that could erupt at any time. Other volcanoes are dormant; they are quiet for ...
... About 90 percent of the world's volcanoes can be found in the Ring of Fire, where tectonic plates meet around the rim of the Pacific Ocean. Worldwide there are 1,900 active volcanoes that could erupt at any time. Other volcanoes are dormant; they are quiet for ...
Explain briefly what is Geology, it`s branches and it`s importance and
... Origin and formation Classification Texture and composition ...
... Origin and formation Classification Texture and composition ...
Students will become familiar with the definitions of igneous
... Closure: The teacher asks students to identify which rock type – igneous, metamorphic, or sedimentary – is most likely to be the same composition as glass. Students should answer igneous. The teacher then lets the students know that igneous rock was one type of rock used by early man to create arro ...
... Closure: The teacher asks students to identify which rock type – igneous, metamorphic, or sedimentary – is most likely to be the same composition as glass. Students should answer igneous. The teacher then lets the students know that igneous rock was one type of rock used by early man to create arro ...
Chapter 9
... This is the outer most layer. It is lowest-density rocky material such as granite and basalt ( a common form of volcanic rock) The interior of the planets are layered because the material was melted. The heavier material sank towards the interior. Gravity was the force that drag the heavy material a ...
... This is the outer most layer. It is lowest-density rocky material such as granite and basalt ( a common form of volcanic rock) The interior of the planets are layered because the material was melted. The heavier material sank towards the interior. Gravity was the force that drag the heavy material a ...
Orogenesis.
... this fashion can be small continental masses MICROCONTINENTS or oceanic features such as volcanic arcs and seamounts (submarine volcanoes). The Seychelles Bank in the Indian Ocean is an example of a microcontinent, which has apparently become detached from Africa. These larger masses of rock are scr ...
... this fashion can be small continental masses MICROCONTINENTS or oceanic features such as volcanic arcs and seamounts (submarine volcanoes). The Seychelles Bank in the Indian Ocean is an example of a microcontinent, which has apparently become detached from Africa. These larger masses of rock are scr ...
Powerpoint Presentation Physical Geology, 10/e
... – Lacks continental rise and abyssal plain. – Associated with convergent plate boundaries. ...
... – Lacks continental rise and abyssal plain. – Associated with convergent plate boundaries. ...
7th Grade Science Chapter 9 Answers
... 29. A rift forms between tectonic plates at divergent boundaries. 30. The magma rises at divergent boundaries, cools, but still rises because the pressure on it decreases. This causes the magma to be less dense then the surrounding rock. 31. Mid-Ocean ridges are the long mountain chains that form on ...
... 29. A rift forms between tectonic plates at divergent boundaries. 30. The magma rises at divergent boundaries, cools, but still rises because the pressure on it decreases. This causes the magma to be less dense then the surrounding rock. 31. Mid-Ocean ridges are the long mountain chains that form on ...
IOSR Journal Of Environmental Science, Toxicology And Food Technology (IOSR-JESTFT)
... Some of the gamma rays produced during fission are absorbed by the reactor, their energy being converted to heat. Heat is produced by the radioactive decay of fission products and materials that have been activated by neutron absorption. This decay heat source will remain for some time even after th ...
... Some of the gamma rays produced during fission are absorbed by the reactor, their energy being converted to heat. Heat is produced by the radioactive decay of fission products and materials that have been activated by neutron absorption. This decay heat source will remain for some time even after th ...
Volcanoes A volcano is a landform (usually a mountain) where
... down. Magma is squeezed up between two plates. When magma erupts through the earth's surface it is called lava. Over half of the world’s volcanoes arise in a belt around the Pacific Ocean called the Ring of Fire. ...
... down. Magma is squeezed up between two plates. When magma erupts through the earth's surface it is called lava. Over half of the world’s volcanoes arise in a belt around the Pacific Ocean called the Ring of Fire. ...
Carboniferous and Permian igneous rocks of Great Britain
... Even after the magmatic origin of igneous rocks had become generally accepted, doubts still existed over the mode of emplacement of sheets of basaltic rock. Most were thought to be extrusive lavas, until people began to recognize contact relationships at their upper margins, which showed that they w ...
... Even after the magmatic origin of igneous rocks had become generally accepted, doubts still existed over the mode of emplacement of sheets of basaltic rock. Most were thought to be extrusive lavas, until people began to recognize contact relationships at their upper margins, which showed that they w ...
Mafic to Intermediate Plutons
... •Samples can be split into 2 distinct geochemical groups: Mafic and Intermediate •Petrography shows evidence of variable retrograde and prograde metamorphism in the epidote-amphibolite and amphibolite facies •Variable amounts of metamorphic fabric •Generally characterized by calc-alkaline geochemist ...
... •Samples can be split into 2 distinct geochemical groups: Mafic and Intermediate •Petrography shows evidence of variable retrograde and prograde metamorphism in the epidote-amphibolite and amphibolite facies •Variable amounts of metamorphic fabric •Generally characterized by calc-alkaline geochemist ...
Earthquake and Earthquake Hazards
... small and large pieces with some pieces large enough to contain continents. These pieces of lithosphere are called TECTONIC PLATES or, simply, PLATES. Immediately beneath the lithosphere is another thin shell called ASTHENOSPHERE. Which can be made to flow by slowly applied deforming forces but beha ...
... small and large pieces with some pieces large enough to contain continents. These pieces of lithosphere are called TECTONIC PLATES or, simply, PLATES. Immediately beneath the lithosphere is another thin shell called ASTHENOSPHERE. Which can be made to flow by slowly applied deforming forces but beha ...
Subduction-zone metamorphism, calc-alkaline - U
... continental salient that is an integral part of descending, largely oceanic lithosphere, disengagement of a crustal slice may be delayed to depths of 90–125 km or more. Insertion of increasing amounts of low-density material into the subduction zone gradually reduces the overall negative buoyancy of ...
... continental salient that is an integral part of descending, largely oceanic lithosphere, disengagement of a crustal slice may be delayed to depths of 90–125 km or more. Insertion of increasing amounts of low-density material into the subduction zone gradually reduces the overall negative buoyancy of ...
8th Grade Science Test 3 – Earth Science Study Guide
... rise slowly through the asthenosphere. At the top of the asthenosphere, the hot material spreads out and pushes the cooler material out of the way. The cooler material sinks back towards the core and the cycle continues. LT 10. Recall the causes of earthquakes and volcanoes and how they change the s ...
... rise slowly through the asthenosphere. At the top of the asthenosphere, the hot material spreads out and pushes the cooler material out of the way. The cooler material sinks back towards the core and the cycle continues. LT 10. Recall the causes of earthquakes and volcanoes and how they change the s ...
ferrari answers
... a detached slab initially produce more or less seismicity as it continued to descend into the mantle, and are there any other proposed active detachments where this might be studied? Not only the detached part of the slab is aseismic (and hence only seen by seismic tomography) but also the leading e ...
... a detached slab initially produce more or less seismicity as it continued to descend into the mantle, and are there any other proposed active detachments where this might be studied? Not only the detached part of the slab is aseismic (and hence only seen by seismic tomography) but also the leading e ...
Tracking the link between epidosites and volcanogenic massive
... dikes that fed the supra-subduction-zone pillow basalts higher up in the extrusive sequence (Alley unit). The fact that the earliest Alley dikes are epidotized whereas the later Alley dikes are not demonstrates that the alteration occurred during Alley volcanism — long after the VMS deposit had been ...
... dikes that fed the supra-subduction-zone pillow basalts higher up in the extrusive sequence (Alley unit). The fact that the earliest Alley dikes are epidotized whereas the later Alley dikes are not demonstrates that the alteration occurred during Alley volcanism — long after the VMS deposit had been ...
Large igneous province
A large igneous province (LIP) is an extremely large accumulation of igneous rocks, including liquid rock (intrusive) or volcanic rock formations (extrusive), when hot magma extrudes from inside the Earth and flows out. The source of many or all LIPs is variously attributed to mantle plumes or to processes associated with plate tectonics. Types of LIPs can include large volcanic provinces (LVP), created through flood basalt and large plutonic provinces (LPP). Eleven distinct flood basalt episodes occurred in the past 250 million years, creating volcanic provinces, which coincided with mass extinctions in prehistoric times. Formation depends on a range of factors, such as continental configuration, latitude, volume, rate, duration of eruption, style and setting (continental vs. oceanic), the preexisting climate state, and the biota resilience to change.