GEOL_10_activity_05
... We can calculate an average rate of seafloor spreading by measuring the distance between MOR's, then divide the distance by the and age of seafloor rocks collected there (e.g. such as from ODP cores). Recall: Rate (r) = Distance (d) ÷ Time (t) or r = d / t 1. What is the average spreading rate of th ...
... We can calculate an average rate of seafloor spreading by measuring the distance between MOR's, then divide the distance by the and age of seafloor rocks collected there (e.g. such as from ODP cores). Recall: Rate (r) = Distance (d) ÷ Time (t) or r = d / t 1. What is the average spreading rate of th ...
Topic 6 Earth`s Internal Structure and Tectonic Process Geography
... was noted that some continents appeared to “fit together” Alfred Wegener (1912) was the first to present a hypothesis to explain this continental drift ...
... was noted that some continents appeared to “fit together” Alfred Wegener (1912) was the first to present a hypothesis to explain this continental drift ...
Powerpoint Presentation Physical Geology, 10/e
... – End at abyssal plain at depth of about 5 km – Lie upon oceanic crust ...
... – End at abyssal plain at depth of about 5 km – Lie upon oceanic crust ...
tectonic plates - Revision World
... The source of heat driving the convection currents is radioactive decay which is happening deep in the Earth. Convection occurs because the density of a fluid is related to its temperature. Hot rocks lower in the mantle are less dense than their cooler counterparts above. The hot rock rises and the ...
... The source of heat driving the convection currents is radioactive decay which is happening deep in the Earth. Convection occurs because the density of a fluid is related to its temperature. Hot rocks lower in the mantle are less dense than their cooler counterparts above. The hot rock rises and the ...
plates
... A. Aquatic mammals, which are able to use the plants for shelter B. Anaerobic bacteria, which can thrive in low oxygen environments C. Pollinating insects, which consume nectar and pollen as food ...
... A. Aquatic mammals, which are able to use the plants for shelter B. Anaerobic bacteria, which can thrive in low oxygen environments C. Pollinating insects, which consume nectar and pollen as food ...
Plate Tectonics Edible Model
... Objective: To build a model using edible materials to model the Theory of Continental drift or Plate Tectonics: Background: “The Earth’s crust is broken up into a series of plates that move to form mountains, spreading centers and earthquakes. There are three different types of plate boundaries. Con ...
... Objective: To build a model using edible materials to model the Theory of Continental drift or Plate Tectonics: Background: “The Earth’s crust is broken up into a series of plates that move to form mountains, spreading centers and earthquakes. There are three different types of plate boundaries. Con ...
APS Continental Crust RLR.pptx
... Figure 15. Four tectonic settings for continental refining via relamination. In all cases, the relaminating layer may be thrust directly beneath existing crust, rise en bloc, perhaps in a "subduction channel", or rise as diapirs through the mantle wedge, depending on physical conditions. In all case ...
... Figure 15. Four tectonic settings for continental refining via relamination. In all cases, the relaminating layer may be thrust directly beneath existing crust, rise en bloc, perhaps in a "subduction channel", or rise as diapirs through the mantle wedge, depending on physical conditions. In all case ...
Plate Tectonics - NagelBeelmanScience
... http://geology.com/plate-tectonics.shtml http://www.dnr.state.oh.us/geosurvey/ht ...
... http://geology.com/plate-tectonics.shtml http://www.dnr.state.oh.us/geosurvey/ht ...
PAST HKCEE -Mountain Building Processes
... -Fold mountain or volcano can be found in plate boundary X. According to the location (Figure 1), fold mountain is found there. Two plates are colliding because of compressional force of sinking convection current in the upper mantle. The oceanic plate, which is made up of heavy material, is subduct ...
... -Fold mountain or volcano can be found in plate boundary X. According to the location (Figure 1), fold mountain is found there. Two plates are colliding because of compressional force of sinking convection current in the upper mantle. The oceanic plate, which is made up of heavy material, is subduct ...
plate_tectonics
... a) Which type of crust has a higher temperature? ______________________ b) Which type of crust has a higher composition of silica? ______________________ c) Which type of crust has a higher composition of iron? ______________________ d) Which type of crust is thicker? ______________________ ...
... a) Which type of crust has a higher temperature? ______________________ b) Which type of crust has a higher composition of silica? ______________________ c) Which type of crust has a higher composition of iron? ______________________ d) Which type of crust is thicker? ______________________ ...
What is the theory of plate tectonics
... north and south poles. Volcanic rock provides a record of the magnetic poles at the time the rock cooled, thus past reversals are recorded in rocks forming along mid-ocean ridges. What happens at the transform boundary? What forms along that boundary? Plates ___________________________, and faults ...
... north and south poles. Volcanic rock provides a record of the magnetic poles at the time the rock cooled, thus past reversals are recorded in rocks forming along mid-ocean ridges. What happens at the transform boundary? What forms along that boundary? Plates ___________________________, and faults ...
An Expedition to the Seafloor- Answer Key
... 7. How did the data provide proof for the theory of seafloor spreading? The data indicates the seafloor is moving away from the Mid- Atlantic Ridge based on sediment age and thickness. Since the sediment above the basement rock is younger and thinner closer to the ridge, this supports the new crust ...
... 7. How did the data provide proof for the theory of seafloor spreading? The data indicates the seafloor is moving away from the Mid- Atlantic Ridge based on sediment age and thickness. Since the sediment above the basement rock is younger and thinner closer to the ridge, this supports the new crust ...
Oceanic plate region
... This movement causes stress on the Earth’s crust! Sometimes, the stress builds and an earthquake occurs. These boundaries push or pull the Earth so much that it causes cracks to form in the crust called faults! You will learn more about faults later on. ...
... This movement causes stress on the Earth’s crust! Sometimes, the stress builds and an earthquake occurs. These boundaries push or pull the Earth so much that it causes cracks to form in the crust called faults! You will learn more about faults later on. ...
Convergence and Collision
... migrates seaward with time, relative to a fixed reference point in the mantle; this movement is called rollback (Figure 17.3). When the subducting slab reaches a depth of about 150 km, it releases volatiles (H2O and CO2) into the overlying asthenosphere, triggering partial melting of the asthenosphe ...
... migrates seaward with time, relative to a fixed reference point in the mantle; this movement is called rollback (Figure 17.3). When the subducting slab reaches a depth of about 150 km, it releases volatiles (H2O and CO2) into the overlying asthenosphere, triggering partial melting of the asthenosphe ...
SEDIMENTARY BASINS - AN INTRODUCTION Definition of a
... One plate is usually subducted beneath the other at a convergent plate boundary. Convergent boundaries may be of different types, depending on the types of lithosphere involved. This results in a wide diversity of basin types formed at convergent boundaries. Transform boundaries form where plates mo ...
... One plate is usually subducted beneath the other at a convergent plate boundary. Convergent boundaries may be of different types, depending on the types of lithosphere involved. This results in a wide diversity of basin types formed at convergent boundaries. Transform boundaries form where plates mo ...
Discussion Answers
... Yes. Divergent boundaries produce new crust and are red on the map. Convergent boundaries occur when plates collide and colors are very different. See the collision of Philippine ...
... Yes. Divergent boundaries produce new crust and are red on the map. Convergent boundaries occur when plates collide and colors are very different. See the collision of Philippine ...
ES 104 Laboratory # 4 - Western Oregon University
... The Theory of Plate Tectonics has revolutionized the science of Geology in the last 30 years. The theory states that the outer surface of the earth consists of 7 major lithospheric plates and numerous smaller ones, and these plates move around on a ductile layer referred to as the asthenosphere. The ...
... The Theory of Plate Tectonics has revolutionized the science of Geology in the last 30 years. The theory states that the outer surface of the earth consists of 7 major lithospheric plates and numerous smaller ones, and these plates move around on a ductile layer referred to as the asthenosphere. The ...
Plate Tectonics PowerPoint
... Theory states – Earth’s crust and part of the upper mantle are broken into sections. These sections are called plates, and move on a plastic like layer of mantle. Similar to rafts on water. ...
... Theory states – Earth’s crust and part of the upper mantle are broken into sections. These sections are called plates, and move on a plastic like layer of mantle. Similar to rafts on water. ...
1. Define habitat and describe how geologic processes influence habitats. Habitats
... 16. What unusual characteristics did geologists find as they studied the mid-ocean ridges and trenches? Both are very geologically active—earthquakes cluster at the ridges and volcanoes are common near trenches. Layers of sediment get thicker and thicker moving away from the mid-ocean ridges (and to ...
... 16. What unusual characteristics did geologists find as they studied the mid-ocean ridges and trenches? Both are very geologically active—earthquakes cluster at the ridges and volcanoes are common near trenches. Layers of sediment get thicker and thicker moving away from the mid-ocean ridges (and to ...
Plate Tectonics
... – By knowing the age of the seafloor and the distance from the spreading center, an average rate of plate motion can be ...
... – By knowing the age of the seafloor and the distance from the spreading center, an average rate of plate motion can be ...
Lecture 1 Plate Tectonics
... and ocean floors move together A convection current is hypothesized Subduction occurs where cells descend Spreading occurs where cells ascend ...
... and ocean floors move together A convection current is hypothesized Subduction occurs where cells descend Spreading occurs where cells ascend ...
Oceanic trench
The oceanic trenches are hemispheric-scale long but narrow topographic depressions of the sea floor. They are also the deepest parts of the ocean floor. Oceanic trenches are a distinctive morphological feature of convergent plate boundaries, along which lithospheric plates move towards each other at rates that vary from a few mm to over ten cm per year. A trench marks the position at which the flexed, subducting slab begins to descend beneath another lithospheric slab. Trenches are generally parallel to a volcanic island arc, and about 200 km (120 mi) from a volcanic arc. Oceanic trenches typically extend 3 to 4 km (1.9 to 2.5 mi) below the level of the surrounding oceanic floor. The greatest ocean depth to be sounded is in the Challenger Deep of the Mariana Trench, at a depth of 11,034 m (36,201 ft) below sea level. Oceanic lithosphere moves into trenches at a global rate of about 3 km2/yr.