Instructor`s Notes: Chapter 17 Earth`s Interior Earth`s Interior Indirect
... Crust- Mantle boundary (Moho) is compositional change at 410 kilometers (255 miles), there is a phase change where less dense mineral due to increased pressure collapse to denser formsOlivine- spinel At 660 kilometers (410 miles) phase change where spinel- perovskite (Mg Fe) Sio3 D” layer -lower 200 ...
... Crust- Mantle boundary (Moho) is compositional change at 410 kilometers (255 miles), there is a phase change where less dense mineral due to increased pressure collapse to denser formsOlivine- spinel At 660 kilometers (410 miles) phase change where spinel- perovskite (Mg Fe) Sio3 D” layer -lower 200 ...
3 Types Of Plate Boundaries And What They Create
... Strike-slip fault…. Earthquakes happen here ...
... Strike-slip fault…. Earthquakes happen here ...
Plate Tectonics
... break up about 200 million years ago. • Continents "drifted" to their present positions. ...
... break up about 200 million years ago. • Continents "drifted" to their present positions. ...
Metamorphic Rocks - hrsbstaff.ednet.ns.ca
... separate into distinct bands Page 164 Fig. 7.14 - other factors that influence formation of metamorphic rocks are: 3) effects of tectonic forces 4) effects of fluids i.e. water - water is trapped in sedimentary material - as rock squeezed water squeezes through pores in rock material - water dissolv ...
... separate into distinct bands Page 164 Fig. 7.14 - other factors that influence formation of metamorphic rocks are: 3) effects of tectonic forces 4) effects of fluids i.e. water - water is trapped in sedimentary material - as rock squeezed water squeezes through pores in rock material - water dissolv ...
Plate Tectonics
... Wegener theory, called continental drift, explained why identical animal fossils like that of mesorausaus were found on coastlines separated by vast oceans. The continental drift theory could also explain the matching of large geological features across continents. Sea floor spreading in turn was th ...
... Wegener theory, called continental drift, explained why identical animal fossils like that of mesorausaus were found on coastlines separated by vast oceans. The continental drift theory could also explain the matching of large geological features across continents. Sea floor spreading in turn was th ...
Ocean Basin Profiles Description
... Part II – Analyzing the ocean depth and age adjacent to the Mid-ocean ridge. In Part I of this exercise, we examined the depth of the Atlantic Ocean basin and observed the prominent mid-ocean ridge (MOR) near the center of the ocean basin. The MOR is also known to be an area of shallow earthquake an ...
... Part II – Analyzing the ocean depth and age adjacent to the Mid-ocean ridge. In Part I of this exercise, we examined the depth of the Atlantic Ocean basin and observed the prominent mid-ocean ridge (MOR) near the center of the ocean basin. The MOR is also known to be an area of shallow earthquake an ...
Ocean Basin Profile
... Part II – Analyzing the ocean depth and age adjacent to the Mid-ocean ridge. In Part I of this exercise, we examined the depth of the Atlantic Ocean basin and observed the prominent mid-ocean ridge (MOR) near the center of the ocean basin. The MOR is also known to be an area of shallow earthquake an ...
... Part II – Analyzing the ocean depth and age adjacent to the Mid-ocean ridge. In Part I of this exercise, we examined the depth of the Atlantic Ocean basin and observed the prominent mid-ocean ridge (MOR) near the center of the ocean basin. The MOR is also known to be an area of shallow earthquake an ...
HST_CRF_04_02_03.qxd
... 14. When oceanic crust scrapes under continental crust, the and pressure increase. HOT SPOTS 15. A volcanically active place that is far from any plate boundaries is called a(n) . 16. Some scientists believe that hot spots are places above , which are columns of rising magma. ...
... 14. When oceanic crust scrapes under continental crust, the and pressure increase. HOT SPOTS 15. A volcanically active place that is far from any plate boundaries is called a(n) . 16. Some scientists believe that hot spots are places above , which are columns of rising magma. ...
Plate Tectonics and Newfoundland
... This mountain range now exists throughout central and western Newfoundland and is the northernmost part of the Appalachians in North America. This range, continues through most of the British Isles and in to Norway. ...
... This mountain range now exists throughout central and western Newfoundland and is the northernmost part of the Appalachians in North America. This range, continues through most of the British Isles and in to Norway. ...
3.3 Plates Move Apart
... What is different? In this case, rift valley’s happen on land. Two piece of land are pulled apart, revealing magma. (it will cool and harden) Creating what is called a continental rift valley (it could fill with water, making a lake.) ...
... What is different? In this case, rift valley’s happen on land. Two piece of land are pulled apart, revealing magma. (it will cool and harden) Creating what is called a continental rift valley (it could fill with water, making a lake.) ...
Action at the Edge
... and weak spots in Earth's crust. You'll find those mostly along the boundaries of tectonic plates that are moving apart. Volcanoes are also common where two plates are slowly colliding and one plate is subducting under the other. The Pacific Plate is one of Earth's largest tectonic plates. It lies b ...
... and weak spots in Earth's crust. You'll find those mostly along the boundaries of tectonic plates that are moving apart. Volcanoes are also common where two plates are slowly colliding and one plate is subducting under the other. The Pacific Plate is one of Earth's largest tectonic plates. It lies b ...
Dynamic Earth Interactive Notes Earth`s Structure Plate Tectonics
... Subduction Zone – The area where one plate is being pulled under the edge of another plate at a convergent boundary. Trench – a deep oceanic trench, or valley, that forms at a subduction zone as the oceanic crust sinks under the other tectonic plate. ...
... Subduction Zone – The area where one plate is being pulled under the edge of another plate at a convergent boundary. Trench – a deep oceanic trench, or valley, that forms at a subduction zone as the oceanic crust sinks under the other tectonic plate. ...
nonsequitur - Earth and Atmospheric Sciences
... of overburden at its base (equal pressure) • If the mean densities and heights of each column are different, there will be a net horizontal force on the material (isostasy only reflects a vertical force balance) ...
... of overburden at its base (equal pressure) • If the mean densities and heights of each column are different, there will be a net horizontal force on the material (isostasy only reflects a vertical force balance) ...
(comprised of the continental crust and oceanic crust).
... Tectonic Plate Boundary Relationships There are three major kinds of active plate boundaries: ...
... Tectonic Plate Boundary Relationships There are three major kinds of active plate boundaries: ...
Earth, continental drift, plate tectonics, sea floor spreading
... system is the most extensive chain of mountains on earth, but more than 90% of this mountain range lies in the deep ocean. The midocean ridge wraps around the globe for more than 65,000 km like the seam of a baseball. ...
... system is the most extensive chain of mountains on earth, but more than 90% of this mountain range lies in the deep ocean. The midocean ridge wraps around the globe for more than 65,000 km like the seam of a baseball. ...
Practical 3 - Tectonic forces 1 Slab pull and viscosity of the
... F IG . 2 – Bathymetry of the ocean floor due to the cooling of the lithosphere. 1. Derive the literal expression, written using integrals, of the isostatic equilibrium between the mid-oceanic ridge and the oceanic plate at a distance l from the ridge at the compensation depth d. ...
... F IG . 2 – Bathymetry of the ocean floor due to the cooling of the lithosphere. 1. Derive the literal expression, written using integrals, of the isostatic equilibrium between the mid-oceanic ridge and the oceanic plate at a distance l from the ridge at the compensation depth d. ...
the Earth - Physical Science 100
... Do the waves stop entirely, speed up or slow down? What does this tell us. ...
... Do the waves stop entirely, speed up or slow down? What does this tell us. ...
(composed of the continental crust and oceanic crust).
... *See the Animation on Tectonic Plate Boundary Relationships found on WileyPLUS or your text’s website. ...
... *See the Animation on Tectonic Plate Boundary Relationships found on WileyPLUS or your text’s website. ...
plates
... What evidence do we have to support this idea? o Mid-ocean ridges are warmer than surrounding ocean floors o Active volcanoes on ridges, earthquakes on ridges o Mid-ocean ridge rocks are younger than surrounding ocean floor rocks o Mid-ocean ridge volcanoes are younger than volcanoes further away ...
... What evidence do we have to support this idea? o Mid-ocean ridges are warmer than surrounding ocean floors o Active volcanoes on ridges, earthquakes on ridges o Mid-ocean ridge rocks are younger than surrounding ocean floor rocks o Mid-ocean ridge volcanoes are younger than volcanoes further away ...
Admiralty Seamount
... the Ross Sea prior to the voyage, but have caught many specimens over a wide area in shallow water. The voyage records have greatly extended the known range of the species. 2) A sea urchin, genus Pourtalesia: Three species are known to occur in Antarctic waters, but none have been previously recorde ...
... the Ross Sea prior to the voyage, but have caught many specimens over a wide area in shallow water. The voyage records have greatly extended the known range of the species. 2) A sea urchin, genus Pourtalesia: Three species are known to occur in Antarctic waters, but none have been previously recorde ...
Collaborative Research: Testing the Hypothesis of Ocean Core
... geophysical surveys (high resolution 30 kHz multibeam bathymetry, gravity, and magnetics), near-bottom TowCam surveys and rock sampling at several sites on the southern Juan de Fuca and eastern Gorda plates, where 3 decades of archive geophysical data strongly suggest the presence of OCC-like struct ...
... geophysical surveys (high resolution 30 kHz multibeam bathymetry, gravity, and magnetics), near-bottom TowCam surveys and rock sampling at several sites on the southern Juan de Fuca and eastern Gorda plates, where 3 decades of archive geophysical data strongly suggest the presence of OCC-like struct ...