- Google Sites
... • SEISMIC WAVES produced by the release of energy – move out in circles from the point of rupture (focus) 2 types of Seismic Waves: surface & body (travel inside & through earth’s layers) ...
... • SEISMIC WAVES produced by the release of energy – move out in circles from the point of rupture (focus) 2 types of Seismic Waves: surface & body (travel inside & through earth’s layers) ...
Growth of Archean continental crust in oceanic
... oceanic crust. Hydration of modern oceanic crust occurs mostly at divergent plate boundaries, where upwelling magmas provide a heat source for the circulation of seawater through oceanic crust via extensional faults and fractures. Recent studies on the Mesoarchean (ca. 2.97 Ga) Fiskenæsset layered i ...
... oceanic crust. Hydration of modern oceanic crust occurs mostly at divergent plate boundaries, where upwelling magmas provide a heat source for the circulation of seawater through oceanic crust via extensional faults and fractures. Recent studies on the Mesoarchean (ca. 2.97 Ga) Fiskenæsset layered i ...
Lecture 10 Stratigraphy and Geologic Time
... sequence of layers of different ages containing different fossils by correlating outcrops found in southern England about 200 years ago. In this example, Formation II was exposed at both outcrops A and B, thus Formation I and II were younger than Formation III. (Press and Siever). ...
... sequence of layers of different ages containing different fossils by correlating outcrops found in southern England about 200 years ago. In this example, Formation II was exposed at both outcrops A and B, thus Formation I and II were younger than Formation III. (Press and Siever). ...
Silurian-Early Devonian mafic rocks of the Piscataquis volcanic belt
... though some isolated occurrences of Early Devonian vol canic rocks occur in western New Hampshire and central Vermont. The volcanic rocks are mainly of Late Silurian and Early Devonian age with a few ranging down to Early Silurian. They are interbedded with and grade laterally into sedimen tary ro ...
... though some isolated occurrences of Early Devonian vol canic rocks occur in western New Hampshire and central Vermont. The volcanic rocks are mainly of Late Silurian and Early Devonian age with a few ranging down to Early Silurian. They are interbedded with and grade laterally into sedimen tary ro ...
Volcanoes and Igneous Activity Earth
... -20% of sedimentary rocks are sandstone; second only to mudrocks in abundance -Composed of sand-sized particles -Forms in a variety of environments and transported by wind and water -Sorting, shape, and composition of the grains can be used to interpret the rock’s history -Quartz is the predominant ...
... -20% of sedimentary rocks are sandstone; second only to mudrocks in abundance -Composed of sand-sized particles -Forms in a variety of environments and transported by wind and water -Sorting, shape, and composition of the grains can be used to interpret the rock’s history -Quartz is the predominant ...
Chapter 1 Introduction – Review of Rocks and
... heat from the interior to the exterior of our planet, while in the context of the latter hot moist air at the equator flows toward the poles as it attempts to spread out radiant heat derived from the Sun across the surface of the planet. The surface of the Earth is underlain by a wide variety o ...
... heat from the interior to the exterior of our planet, while in the context of the latter hot moist air at the equator flows toward the poles as it attempts to spread out radiant heat derived from the Sun across the surface of the planet. The surface of the Earth is underlain by a wide variety o ...
Quiz Bowl Rock Terms
... midocean ridge - a long chain of undersea mountains that forms along the ocean bed where tectonic plates are moving apart. mineral - a naturally occurring solid with certain regular characteristics, such as chemical composition and crystal shapes. Earth’s rocks are made up of minerals. native elemen ...
... midocean ridge - a long chain of undersea mountains that forms along the ocean bed where tectonic plates are moving apart. mineral - a naturally occurring solid with certain regular characteristics, such as chemical composition and crystal shapes. Earth’s rocks are made up of minerals. native elemen ...
GEOLOGIC TIME basic principles
... (foot wall). The layers were con8nuous (correla8on is not immediate but note the kinked bed edges along the fault) but have been cut by the fault. Hence, the fault is younger than the layers (it occurred aker the layers had formed) House Rock Junc8on, Arizona ©Alessandro Grippo ...
... (foot wall). The layers were con8nuous (correla8on is not immediate but note the kinked bed edges along the fault) but have been cut by the fault. Hence, the fault is younger than the layers (it occurred aker the layers had formed) House Rock Junc8on, Arizona ©Alessandro Grippo ...
07 Chapter 7_Metamorphism and Metamorphic Rocks
... During mountain building, rocks subjected to differential stress are shortened in the direction that pressure is applied and lengthened in the direction perpendicular to that force. ...
... During mountain building, rocks subjected to differential stress are shortened in the direction that pressure is applied and lengthened in the direction perpendicular to that force. ...
Nascent continental crust in oceanic island arcs: insights from the
... Nascent continental crust in oceanic island arcs: insights from the Virgin Islands batholith, British Virgin Islands Kevin L. Schrecengost, Allen F. Glazner, and Drew S. Coleman University of North Carolina at Chapel Hill, North Carolina, USA Mid-crustal exposures of oceanic island arcs have been fo ...
... Nascent continental crust in oceanic island arcs: insights from the Virgin Islands batholith, British Virgin Islands Kevin L. Schrecengost, Allen F. Glazner, and Drew S. Coleman University of North Carolina at Chapel Hill, North Carolina, USA Mid-crustal exposures of oceanic island arcs have been fo ...
Plate Tectonics - MsPetersensScienceScholars
... 2. Click on the assignment that says “Tectonic Forces” 3. Click “Start Here” at the bottom of the screen and listen to the information. Then, close out that window. 4. Click a boundary from the box that says “Choose a type of boundary” at the top of the screen. 5. Click the white circles to see what ...
... 2. Click on the assignment that says “Tectonic Forces” 3. Click “Start Here” at the bottom of the screen and listen to the information. Then, close out that window. 4. Click a boundary from the box that says “Choose a type of boundary” at the top of the screen. 5. Click the white circles to see what ...
Document
... Distribution of sediment types over time records tectonic activity Older sedimentary layers have higher dips than younger layers ...
... Distribution of sediment types over time records tectonic activity Older sedimentary layers have higher dips than younger layers ...
Local Earthquakes in Sabah
... – The Lahad Datu Faults, strikes (after Felix Tongkul) or Tabin Fault (after Tjia) – The Mensaban Faults, strikes WNWESE (Kundasang-Ranau Area) (after Tjia) – Crocker Fault Zone, strike NNE (after Tjia) ...
... – The Lahad Datu Faults, strikes (after Felix Tongkul) or Tabin Fault (after Tjia) – The Mensaban Faults, strikes WNWESE (Kundasang-Ranau Area) (after Tjia) – Crocker Fault Zone, strike NNE (after Tjia) ...
Instructor`s Manual to accompany
... 1. Geology is the scientific study of the earth. Physical geology is that division of geology concerned with earth materials, changes in the surface and interior of the earth, and the dynamic forces that cause those changes. 2. Earthquakes, like Northridge, reflect the sudden release of energy along ...
... 1. Geology is the scientific study of the earth. Physical geology is that division of geology concerned with earth materials, changes in the surface and interior of the earth, and the dynamic forces that cause those changes. 2. Earthquakes, like Northridge, reflect the sudden release of energy along ...
The Bassett Lake mafic intrusion is situated on and immediately
... anhedral, except where individual crystals are enclosed by magnetite and where subhedral crystal development occurs. Very highly magnetic ultramafic rocks (Fig. l), typically exhibit a surface magnetic intensity in excess of 10,000 gauss (Great Plains Development Co. of Canada Ltd., surface EM surve ...
... anhedral, except where individual crystals are enclosed by magnetite and where subhedral crystal development occurs. Very highly magnetic ultramafic rocks (Fig. l), typically exhibit a surface magnetic intensity in excess of 10,000 gauss (Great Plains Development Co. of Canada Ltd., surface EM surve ...
Rodinia supercontinent break-up: Not a result of Superplume tectonics
... The formation of the Earth’s crust is a complex process, evolved over a long period. Upper mantle convection dynamics caused separation of low-density silicate minerals from the initial cooling melt. This resulted in the granitic continental part. These landmasses gradually accreted in the form of a ...
... The formation of the Earth’s crust is a complex process, evolved over a long period. Upper mantle convection dynamics caused separation of low-density silicate minerals from the initial cooling melt. This resulted in the granitic continental part. These landmasses gradually accreted in the form of a ...
Brief overview of North American Cordilleran geology by Cin
... Brief overview of North American Cordilleran geology by Cin‐Ty Lee Note: make sure to take notes as I will talk or sketch on the board many things that are not presented ...
... Brief overview of North American Cordilleran geology by Cin‐Ty Lee Note: make sure to take notes as I will talk or sketch on the board many things that are not presented ...
Relative and Absolute Dating 2013
... two rules for dating rocks: 2. If a fault or another rock cuts through a layer it happened after (and is younger than) the layer ...
... two rules for dating rocks: 2. If a fault or another rock cuts through a layer it happened after (and is younger than) the layer ...
Coosa County
... Gneiss – a coarse-textured complex metamorphic rock. Gneiss is a type of rock with a great variety of large mineral grains arranged in wide bands which originally may have been of either igneous or sedimentary origin. Common and widely distributed, it makes up the largest part of the earth's lower ...
... Gneiss – a coarse-textured complex metamorphic rock. Gneiss is a type of rock with a great variety of large mineral grains arranged in wide bands which originally may have been of either igneous or sedimentary origin. Common and widely distributed, it makes up the largest part of the earth's lower ...
ESCI110,FinalPract,Ex,F07
... A) andesite B) diorite C) basalt D) granite 53) Igneous rock is formed A) at great depth within Earth. B) by changes in mineral composition. C) by crystallization of molten rock. D) by the weathering of preexisting rocks. 54) The texture of an igneous rock ________. A) is caused by leaching B) deter ...
... A) andesite B) diorite C) basalt D) granite 53) Igneous rock is formed A) at great depth within Earth. B) by changes in mineral composition. C) by crystallization of molten rock. D) by the weathering of preexisting rocks. 54) The texture of an igneous rock ________. A) is caused by leaching B) deter ...
Earthquakes
... Large earthquakes can occur at depths of 650 to 700 km • Prentice Hall defines earthquakes as the shaking and trembling that results from the movement of rock beneath Earth’s surface. • Most earthquakes are too small to notice, but a large earthquake can cause changes in the Earth’s surface. ...
... Large earthquakes can occur at depths of 650 to 700 km • Prentice Hall defines earthquakes as the shaking and trembling that results from the movement of rock beneath Earth’s surface. • Most earthquakes are too small to notice, but a large earthquake can cause changes in the Earth’s surface. ...
Lithological Processes, Hazards and Management (1)
... from vent easily vs. granitic magma of which gases collect as bubbles that increase in size and pressure till they explosively eject the semi-molten rock o Viscous magma more likely to solidify within and clog up vent inhibits further rise of magma below and builds up pressure Features of Extrusiv ...
... from vent easily vs. granitic magma of which gases collect as bubbles that increase in size and pressure till they explosively eject the semi-molten rock o Viscous magma more likely to solidify within and clog up vent inhibits further rise of magma below and builds up pressure Features of Extrusiv ...
Algoman orogeny
The Algoman orogeny, known as the Kenoran orogeny in Canada, was an episode of mountain-building (orogeny) during the Late Archean Eon that involved repeated episodes of continental collisions, compressions and subductions. The Superior province and the Minnesota River Valley terrane collided about 2,700 to 2,500 million years ago. The collision folded the Earth's crust and produced enough heat and pressure to metamorphose the rock. Blocks were added to the Superior province along a 1,200 km (750 mi) boundary that stretches from present-day eastern South Dakota into the Lake Huron area. The Algoman orogeny brought the Archaen Eon to a close, about 2,500 million years ago; it lasted less than 100 million years and marks a major change in the development of the earth’s crust.The Canadian shield contains belts of metavolcanic and metasedimentary rocks formed by the action of metamorphism on volcanic and sedimentary rock. The areas between individual belts consist of granites or granitic gneisses that form fault zones. These two types of belts can be seen in the Wabigoon, Quetico and Wawa subprovinces; the Wabigoon and Wawa are of volcanic origin and the Quetico is of sedimentary origin. These three subprovinces lie linearly in southwestern- to northeastern-oriented belts about 140 km (90 mi) wide on the southern portion of the Superior Province.The Slave province and portions of the Nain province were also affected. Between about 2,000 and 1,700 million years ago these combined with the Sask and Wyoming cratons to form the first supercontinent, the Kenorland supercontinent.