Make sure you label your diagrams and use arrows to show
... the words converge and diverge, have you created a convergent or divergent plate boundary? ____________________ ...
... the words converge and diverge, have you created a convergent or divergent plate boundary? ____________________ ...
PowerPoint
... o Mantle convection is the idea that there is a treadmill-like current in the asthenosphere that moves the crust that sits above it. (hot magma rises in one area and cool magma sinks ...
... o Mantle convection is the idea that there is a treadmill-like current in the asthenosphere that moves the crust that sits above it. (hot magma rises in one area and cool magma sinks ...
Plate Tectonics Boundaries Chart
... Continental Plate to collide and neither is Continental Plate dense enough to ...
... Continental Plate to collide and neither is Continental Plate dense enough to ...
Miller Chapter 15
... molten outer core that is extremely hot. Mantle: solid rock with a rigid outer part (asthenosphere) that is melted pliable rock. Crust: Outermost zone which underlies the continents. ...
... molten outer core that is extremely hot. Mantle: solid rock with a rigid outer part (asthenosphere) that is melted pliable rock. Crust: Outermost zone which underlies the continents. ...
0495015989_75118
... molten outer core that is extremely hot. Mantle: solid rock with a rigid outer part (asthenosphere) that is melted pliable rock. Crust: Outermost zone which underlies the continents. ...
... molten outer core that is extremely hot. Mantle: solid rock with a rigid outer part (asthenosphere) that is melted pliable rock. Crust: Outermost zone which underlies the continents. ...
File
... Note: no plates shown Absolute Age Dating of Rocks Conclusion: PlateNote: driftnois yet shown to be worked out. plates We’ll have to work with continental crust drift maps 250 million yearsuntil ago plate drift is defined ...
... Note: no plates shown Absolute Age Dating of Rocks Conclusion: PlateNote: driftnois yet shown to be worked out. plates We’ll have to work with continental crust drift maps 250 million yearsuntil ago plate drift is defined ...
Volcano Age - Mercer Island School District
... We know that the Earth is not increasing in size due to the creation of new ocean lithosphere along seafloor spreading zones; thus it stands to reason that the ocean lithosphere must be consumed along convergent boundaries. ...
... We know that the Earth is not increasing in size due to the creation of new ocean lithosphere along seafloor spreading zones; thus it stands to reason that the ocean lithosphere must be consumed along convergent boundaries. ...
GEO/OC 103 Exploring the Deep… Lab 2
... early Earth to melt. Molten materials separate, or differentiate, into layers based on density. In Earth, this process formed concentric layers, beginning with a dense iron-nickel core, surrounded by a thick mantle made of magnesium, iron, silicon, and calcium (Figure at left). The rock with the lo ...
... early Earth to melt. Molten materials separate, or differentiate, into layers based on density. In Earth, this process formed concentric layers, beginning with a dense iron-nickel core, surrounded by a thick mantle made of magnesium, iron, silicon, and calcium (Figure at left). The rock with the lo ...
No Slide Title
... upper mantle – it consists of variable-sized pieces called plates – with plate regions containing continental crust • up to 250 km thick ...
... upper mantle – it consists of variable-sized pieces called plates – with plate regions containing continental crust • up to 250 km thick ...
Answer Key - Learn Earth Science
... ¾ What can people do to protect themselves during an earthquake? get under a desk/table, stand against an interior wall, stay away from windows ¾ What is the Richter scale and how is it used? What it is ...
... ¾ What can people do to protect themselves during an earthquake? get under a desk/table, stand against an interior wall, stay away from windows ¾ What is the Richter scale and how is it used? What it is ...
5) Coral Sand and Vinegar: Investigating Ocean
... excess CO2 in the atmosphere, some of this CO2 gets absorbed in the ocean. In the ocean, CO2 combines with water (H2O) to form carbonic acid (H2CO3). This causes the ocean to become more acidic (that is, have a lower pH). This process is called ocean acidification, and is a huge problem for marine e ...
... excess CO2 in the atmosphere, some of this CO2 gets absorbed in the ocean. In the ocean, CO2 combines with water (H2O) to form carbonic acid (H2CO3). This causes the ocean to become more acidic (that is, have a lower pH). This process is called ocean acidification, and is a huge problem for marine e ...
Chapter 18
... • The solid layer above the asthenosphere is called the lithosphere, after the Greek for “stone shell”. • The lithosphere is also known as the strong layer in contrast to the asthenosphere, which is the weak layer. • The lithosphere includes the entire crust, the Moho, and the upper part of the mant ...
... • The solid layer above the asthenosphere is called the lithosphere, after the Greek for “stone shell”. • The lithosphere is also known as the strong layer in contrast to the asthenosphere, which is the weak layer. • The lithosphere includes the entire crust, the Moho, and the upper part of the mant ...
Plate Tectonics Notes # 2
... like silly putty , bread dough, or HONEY . This zone was discovered because it was found that seismic waves decrease in velocity from 100km to 700km below the Earth’s surface. (Seismic waves travel more slowly through liquids than solids). It is a plastic-like portion of the upper mantle that is par ...
... like silly putty , bread dough, or HONEY . This zone was discovered because it was found that seismic waves decrease in velocity from 100km to 700km below the Earth’s surface. (Seismic waves travel more slowly through liquids than solids). It is a plastic-like portion of the upper mantle that is par ...
Detecting Small Seabed Targets Using A High
... To date the detection of small seabed targets has predominantly been achieved using deep-towed sidescan sonar technology. Common targets include mines, wreck debris, and fishing hardware. The prime reason that traditional towed sidescan technology is used for this is the capability of maintaining th ...
... To date the detection of small seabed targets has predominantly been achieved using deep-towed sidescan sonar technology. Common targets include mines, wreck debris, and fishing hardware. The prime reason that traditional towed sidescan technology is used for this is the capability of maintaining th ...
Lecture 13-15 Notes: Plate Tectonics
... o Lots of geologic action in certain narrow, linear zones on Earth’s surface…maybe that’s where it’s happening (your lab!) o Most active deformation (high mountain ranges, young folds, fault offsets) appears to be occurring at these zones o [We can now image at least the first stage of oceanic crust ...
... o Lots of geologic action in certain narrow, linear zones on Earth’s surface…maybe that’s where it’s happening (your lab!) o Most active deformation (high mountain ranges, young folds, fault offsets) appears to be occurring at these zones o [We can now image at least the first stage of oceanic crust ...
Lesson: Landforms and Oceans
... 5-3.2 Illustrate the geologic landforms of the ocean floor (including the continental shelf and slope, the mid-ocean ridge, rift zone, trench, and the ocean basin). 5-3.3 Compare continental and oceanic landforms. 2014 Standards Correlation: Grade Four Earth Science: Changes in Landforms and Oceans ...
... 5-3.2 Illustrate the geologic landforms of the ocean floor (including the continental shelf and slope, the mid-ocean ridge, rift zone, trench, and the ocean basin). 5-3.3 Compare continental and oceanic landforms. 2014 Standards Correlation: Grade Four Earth Science: Changes in Landforms and Oceans ...
Tectonic Impacts #2
... 60 000 kilometres right around the globe. Mid-ocean ridges rise to over 2.4 kilometres above the floor of the 5 kilometres deep ocean basins. A mid-ocean ridge can be a wide a 2000 kilometres. Mid-ocean ridges result from convective upwelling of mantle beneath thin oceanic lithosphere. They are form ...
... 60 000 kilometres right around the globe. Mid-ocean ridges rise to over 2.4 kilometres above the floor of the 5 kilometres deep ocean basins. A mid-ocean ridge can be a wide a 2000 kilometres. Mid-ocean ridges result from convective upwelling of mantle beneath thin oceanic lithosphere. They are form ...
new geophysical data about the inner structure of drake passage crust
... not more than 4my. The isochrones distribution data for the whole area gives an idea of the time and the succession of the oceanic crust formation in the conditions of the complicate paleodynamics of this region. In general, the age of the subducted oceanic crust of the Pacific coast of Antarctica b ...
... not more than 4my. The isochrones distribution data for the whole area gives an idea of the time and the succession of the oceanic crust formation in the conditions of the complicate paleodynamics of this region. In general, the age of the subducted oceanic crust of the Pacific coast of Antarctica b ...
General Oceanography, GEOL 105, Summer 2012 Session II Page
... Which organisms form the base of the food chain at hydrothermal vents? ...
... Which organisms form the base of the food chain at hydrothermal vents? ...
New insights into the subducting oceanic crust in the Middle
... of the ridge axis proposed by Bandy (1992) and Bandy and Hilde (1999). On the outer wall of the trench, no lineations have been identified as being related to the N-S structural trend observed on the bathymetric data, although a high-amplitude magnetic anomaly is visible at this latitude in the tren ...
... of the ridge axis proposed by Bandy (1992) and Bandy and Hilde (1999). On the outer wall of the trench, no lineations have been identified as being related to the N-S structural trend observed on the bathymetric data, although a high-amplitude magnetic anomaly is visible at this latitude in the tren ...
Tectonic landscapes- Understanding hotspots
... GCSE- Tectonic landscapes- Understanding hotspots Some volcanoes do not occur on plate boundaries. These volcanoes are formed over hotspots. These are fixed points in the mantle that generate intense heat (in a mantle plume). Small, long lasting, exceptionally hot areas of magma exist under the Eart ...
... GCSE- Tectonic landscapes- Understanding hotspots Some volcanoes do not occur on plate boundaries. These volcanoes are formed over hotspots. These are fixed points in the mantle that generate intense heat (in a mantle plume). Small, long lasting, exceptionally hot areas of magma exist under the Eart ...
mediterranean deep-sea biology - ICM-CSIC
... born the ‘Azoic Theory’. This theory did not last long. Although the stimulation to look for deepsea fauna originated in the Mediterranean it was in the NE Atlantic using the naval vessels Lightning and Porcupine that animals were hauled from the deepest depths. From 1872 to 1876 HMS Challenger tour ...
... born the ‘Azoic Theory’. This theory did not last long. Although the stimulation to look for deepsea fauna originated in the Mediterranean it was in the NE Atlantic using the naval vessels Lightning and Porcupine that animals were hauled from the deepest depths. From 1872 to 1876 HMS Challenger tour ...
Petrology - Florida Atlantic University
... Tristan de Cunha, and Gough Islands in the Atlantic, as well as Tahiti in the Pacific. • Silica undersaturated subseries is the more common type • Slightly silica saturated is less common ...
... Tristan de Cunha, and Gough Islands in the Atlantic, as well as Tahiti in the Pacific. • Silica undersaturated subseries is the more common type • Slightly silica saturated is less common ...
Abyssal plain
An abyssal plain is an underwater plain on the deep ocean floor, usually found at depths between 3000 and 6000 m. Lying generally between the foot of a continental rise and a mid-ocean ridge, abyssal plains cover more than 50% of the Earth’s surface. They are among the flattest, smoothest and least explored regions on Earth. Abyssal plains are key geologic elements of oceanic basins (the other elements being an elevated mid-ocean ridge and flanking abyssal hills). In addition to these elements, active oceanic basins (those that are associated with a moving plate tectonic boundary) also typically include an oceanic trench and a subduction zone.Abyssal plains were not recognized as distinct physiographic features of the sea floor until the late 1940s and, until very recently, none had been studied on a systematic basis. They are poorly preserved in the sedimentary record, because they tend to be consumed by the subduction process. The creation of the abyssal plain is the end result of spreading of the seafloor (plate tectonics) and melting of the lower oceanic crust. Magma rises from above the asthenosphere (a layer of the upper mantle) and as this basaltic material reaches the surface at mid-ocean ridges it forms new oceanic crust. This is constantly pulled sideways by spreading of the seafloor. Abyssal plains result from the blanketing of an originally uneven surface of oceanic crust by fine-grained sediments, mainly clay and silt. Much of this sediment is deposited by turbidity currents that have been channelled from the continental margins along submarine canyons down into deeper water. The remainder of the sediment is composed chiefly of pelagic sediments. Metallic nodules are common in some areas of the plains, with varying concentrations of metals, including manganese, iron, nickel, cobalt, and copper. These nodules may provide a significant resource for future mining ventures.Owing in part to their vast size, abyssal plains are currently believed to be a major reservoir of biodiversity. The abyss also exerts significant influence upon ocean carbon cycling, dissolution of calcium carbonate, and atmospheric CO2 concentrations over timescales of 100–1000 years. The structure and function of abyssal ecosystems are strongly influenced by the rate of flux of food to the seafloor and the composition of the material that settles. Factors such as climate change, fishing practices, and ocean fertilization are expected to have a substantial effect on patterns of primary production in the euphotic zone. This will undoubtedly impact the flux of organic material to the abyss in a similar manner and thus have a profound effect on the structure, function and diversity of abyssal ecosystems.