Geología Norteamerica
... In this phase, the continent started to expand basinward (westward) by accretion. All the events are recorded in the rock and structural features of the terranes and by continental arcs. Glimpses of the pre-Cretaceous plate tectonics within the Proto-Pacific Ocean come the tectonostratigraphic recor ...
... In this phase, the continent started to expand basinward (westward) by accretion. All the events are recorded in the rock and structural features of the terranes and by continental arcs. Glimpses of the pre-Cretaceous plate tectonics within the Proto-Pacific Ocean come the tectonostratigraphic recor ...
section 1 - image identification
... Are earthquakes extremely unusual in Central Virginia? The catastrophic earthquake that hit Izmit, Turkey on August 17, 1999 – which claimed the lives of over 18,000 people – was caused by movement of a nearby ________. Does mountain glaciation tend to produce smooth, rounded mountain peaks? ...
... Are earthquakes extremely unusual in Central Virginia? The catastrophic earthquake that hit Izmit, Turkey on August 17, 1999 – which claimed the lives of over 18,000 people – was caused by movement of a nearby ________. Does mountain glaciation tend to produce smooth, rounded mountain peaks? ...
5) Types of Boundaries
... has folded into a huge mountain range The edge of the oceanic plate has bent downward and dug deep into the Earth and melts The melted rock rises up through the continental plate, causing more earthquakes and forming volcanic eruptions where it finally reaches the surface. An oceanic trench is a con ...
... has folded into a huge mountain range The edge of the oceanic plate has bent downward and dug deep into the Earth and melts The melted rock rises up through the continental plate, causing more earthquakes and forming volcanic eruptions where it finally reaches the surface. An oceanic trench is a con ...
Metamorphism and Metamorphic Rocks
... Systematic variations in the mineralogy and textures of metamorphic rocks are related to the variations in the degree of metamorphism Index minerals and metamorphic grade •Changes in mineralogy occur from regions of low-grade metamorphism to regions of high-grade metamorphism Index minerals and m ...
... Systematic variations in the mineralogy and textures of metamorphic rocks are related to the variations in the degree of metamorphism Index minerals and metamorphic grade •Changes in mineralogy occur from regions of low-grade metamorphism to regions of high-grade metamorphism Index minerals and m ...
6.1 himalaya 4
... – Accumulation Phase (passive margin) – Thick deposits of sediment sourced from another mountain building event ...
... – Accumulation Phase (passive margin) – Thick deposits of sediment sourced from another mountain building event ...
Chapter Two Notes
... including structures that indicate ice flow direction are located in ancient rocks as shown on the left. ...
... including structures that indicate ice flow direction are located in ancient rocks as shown on the left. ...
Questions for the fifth quiz
... How did explain that the continents moved? How was this explanation received? What happened to Wegner’s reputation for the next 50 years or so? What did the paleomagnetic data suggest had happened to India? Are plate boundaries only in the middle of oceans? Are the plates ‘thin and rigid’ or ‘fat an ...
... How did explain that the continents moved? How was this explanation received? What happened to Wegner’s reputation for the next 50 years or so? What did the paleomagnetic data suggest had happened to India? Are plate boundaries only in the middle of oceans? Are the plates ‘thin and rigid’ or ‘fat an ...
Geology Power Hour Powerpoint Geology Power Hour
... 4. I can explain how and why plates move, the effects of their movement, and the difference between convergent, divergent, and transform plate boundaries. 5. I can list and describe the three types of volcanoes. 6. I can use evidence such as layers of fossils and sediments, current landforms, and te ...
... 4. I can explain how and why plates move, the effects of their movement, and the difference between convergent, divergent, and transform plate boundaries. 5. I can list and describe the three types of volcanoes. 6. I can use evidence such as layers of fossils and sediments, current landforms, and te ...
What Forces Change & Shape Our Planet?
... magnetic field generated by rocks on the floor of the Pacific Ocean. The volcanic rocks which make up the sea floor have magnetization because, as they cool, magnetic minerals within the rock align to the Earth's magnetic field ...
... magnetic field generated by rocks on the floor of the Pacific Ocean. The volcanic rocks which make up the sea floor have magnetization because, as they cool, magnetic minerals within the rock align to the Earth's magnetic field ...
Chapter 8—Earliest Earth: 2100000000 Years of the
... organelles (230): Bodies capable of performing specific function. outgassing (222): The process by which water vapor and other gases are released from the rocks that held them and then vented to the surface. partial melting (220): The variation in melting that occurs in different minerals in an orig ...
... organelles (230): Bodies capable of performing specific function. outgassing (222): The process by which water vapor and other gases are released from the rocks that held them and then vented to the surface. partial melting (220): The variation in melting that occurs in different minerals in an orig ...
Chapter 4 Exercises 1. Observations and experiments show that rate
... suddenly speeds up (usually due to a change in location from deep underground to near the surface). The most common scenario for this change is some kind of volcanic process. 10. Water, which is abundant in the sedimentary rock and oceanic crust at subduction zones, would affect melting in these su ...
... suddenly speeds up (usually due to a change in location from deep underground to near the surface). The most common scenario for this change is some kind of volcanic process. 10. Water, which is abundant in the sedimentary rock and oceanic crust at subduction zones, would affect melting in these su ...
Shields, Stable Platforms, Young Mt. Belts
... Wilson Cycle: Destruction of Ocean Basin through Subduction, beginning of the Orogeny ...
... Wilson Cycle: Destruction of Ocean Basin through Subduction, beginning of the Orogeny ...
strike and dip
... • Because of their large size and linear nature, many strike-slip faults produce a trace that is visible over a great distance • Crushed and broken rocks produced during faulting are more easily eroded, often producing linear valleys or troughs ...
... • Because of their large size and linear nature, many strike-slip faults produce a trace that is visible over a great distance • Crushed and broken rocks produced during faulting are more easily eroded, often producing linear valleys or troughs ...
1 Eons, Eras, Periods and Epochs Dating by radioactive isotopes
... 4. Disk of matter (many elements) around sun 5. Disk slowly accretes into clumps (planetesimals) that also contain heavier elements 6. planetesimals → planetoids → planets and satellites Hubble Space Telescope view of a new solar system 1500 l-y away in the Orion Nebula ...
... 4. Disk of matter (many elements) around sun 5. Disk slowly accretes into clumps (planetesimals) that also contain heavier elements 6. planetesimals → planetoids → planets and satellites Hubble Space Telescope view of a new solar system 1500 l-y away in the Orion Nebula ...
Landform Regions of Canada
... oldest rocks (3.69 billion yrs old) • Made up of two types of rocks 1) Igneous 2) Metamorphic ...
... oldest rocks (3.69 billion yrs old) • Made up of two types of rocks 1) Igneous 2) Metamorphic ...
The Lithosphere
... – Occurs when the hanging wall block moves down relative to the footwall block ...
... – Occurs when the hanging wall block moves down relative to the footwall block ...
planet earth - Mr. Shack`s Class
... gas are formed The mantle is the thickest section – the upper part is solid the lower is liquid The outer core is hot and liquid The inner core is solid...Why would this be solid while the outer is liquid? The high pressure of the outer layers makes it solid ...
... gas are formed The mantle is the thickest section – the upper part is solid the lower is liquid The outer core is hot and liquid The inner core is solid...Why would this be solid while the outer is liquid? The high pressure of the outer layers makes it solid ...
rocks guided reading
... How are metamorphic rocks classified? __________________—mineral grains are flattened and line up in parallel _________________. Example: _______________formed from rearrangement of minerals in _________________ into bands How are metamorphic rocks classified? Non-Foliated—__________________________ ...
... How are metamorphic rocks classified? __________________—mineral grains are flattened and line up in parallel _________________. Example: _______________formed from rearrangement of minerals in _________________ into bands How are metamorphic rocks classified? Non-Foliated—__________________________ ...
Power Point
... inner core and outer core? 6250° C Outer core and stiffer mantle? 5000° C Stiffer Mantle and athenosphere? 2600° C Asthenosphere and lithosphere? 750° C ...
... inner core and outer core? 6250° C Outer core and stiffer mantle? 5000° C Stiffer Mantle and athenosphere? 2600° C Asthenosphere and lithosphere? 750° C ...
Metamorphism and Metamorphic Rocks Metamorphism is defined
... from the Greek "meta" = change and "morph" = form, so metamorphism means to change form. These changes take place in the solid state (ie. there is no melting involved) but the reactions are often aided by the presence of fluids, typically in the form of a high density vapor phase along grain boundar ...
... from the Greek "meta" = change and "morph" = form, so metamorphism means to change form. These changes take place in the solid state (ie. there is no melting involved) but the reactions are often aided by the presence of fluids, typically in the form of a high density vapor phase along grain boundar ...
Presentation
... Sea-floor spreading is the process by which new oceanic lithosphere forms as magma rises toward the surface and solidifies or hardens. As tectonic plates move away from one another, the sea floor spreads apart and magma fills in the gaps, creating new ocean floor. ...
... Sea-floor spreading is the process by which new oceanic lithosphere forms as magma rises toward the surface and solidifies or hardens. As tectonic plates move away from one another, the sea floor spreads apart and magma fills in the gaps, creating new ocean floor. ...
Document
... SEDIMENTARY, AND IGNEOUS ROCKS. IT CAN DATE OLDER ROCKS BUT MAY ALSO DATE ROCKS AS YOUNG AS 50,000 ...
... SEDIMENTARY, AND IGNEOUS ROCKS. IT CAN DATE OLDER ROCKS BUT MAY ALSO DATE ROCKS AS YOUNG AS 50,000 ...
Faults, Folds, and Landscapes - Cal State LA
... • Introduce basic terminology used in describing rock structure • Distinguish between types of fault movements and the landforms they produce • Discuss the folding of rocks and relate it to the landforms produced • Call attention to occurrence of regional deformation of the crust, in addition to mor ...
... • Introduce basic terminology used in describing rock structure • Distinguish between types of fault movements and the landforms they produce • Discuss the folding of rocks and relate it to the landforms produced • Call attention to occurrence of regional deformation of the crust, in addition to mor ...
Slide 1
... at the Earth's surface. It pours out over the Earth's surface in a volcanic eruption. This process is called extrusion. The rocks that form from extruded magma are called extrusive igneous rocks. Basalt and pumice are extrusive igneous rocks. The type of rock that forms depends on the ...
... at the Earth's surface. It pours out over the Earth's surface in a volcanic eruption. This process is called extrusion. The rocks that form from extruded magma are called extrusive igneous rocks. Basalt and pumice are extrusive igneous rocks. The type of rock that forms depends on the ...
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.