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Wizard Test Maker
Wizard Test Maker

... presence of fossils of the same species of organisms on continents that are separated by an ocean indicates A) this species was capable of swimming long distances. B) the continents must have been connected at some time in the past. C) a species can evolve separately on two different continents. D) ...
PRE-POSTTESTwithANSWERS
PRE-POSTTESTwithANSWERS

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process of forming new oceanic crust from magma rising to the
process of forming new oceanic crust from magma rising to the

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Chapter 9 WS #1
Chapter 9 WS #1

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Chapter 8 Plate Tectonics
Chapter 8 Plate Tectonics

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1 Lecture 24: Convergent boundaries November 22, 2006
1 Lecture 24: Convergent boundaries November 22, 2006

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Earthquake BINGO
Earthquake BINGO

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9.2 – Sea Floor Spreading

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Plate Boundaries Diagram Type of boundary and motion at

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1.3 Japan and South-East Asia

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Chapter 17 Study Guide Answers
Chapter 17 Study Guide Answers

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Chapter 1—Plate Tectonics and California
Chapter 1—Plate Tectonics and California

... sketch, label the following: oceanic trench, volcanic arc, where magma is forming, a batholith and the accretionary wedge. Describe what each one is. Use several “X’s” to show where earthquakes would occur. Use arrows to show how the plates are moving with respect to one another. 5. Draw a sketch of ...
Chapter Questions
Chapter Questions

... volcanic settings like seafloor spreading centers and ocean hotspots. Example: Basalt. FELSIC – igneous rocks whose composition is high in Si and low in Fe, Mg, and Ca – usually found in continental volcanic settings like subduction zone volcanic arcs, continental hotpots, or continental rifting. Ex ...
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Plate Tectonics Review Worksheet

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Lecture 6 Review Sheet
Lecture 6 Review Sheet

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Tectonic Landforms

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Unit F Chapter 1 Test
Unit F Chapter 1 Test

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Convergent Boundaries
Convergent Boundaries

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Type of Boundary - Ms Dudek`s Website
Type of Boundary - Ms Dudek`s Website

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Converging Plate Boundaries
Converging Plate Boundaries

... lithospheric slabs, thereby producing an inclined zone of earthquakes that dips into the Earth’s upper mantle typically at angles of 40°– 60° from the horizontal. Earthquakes can occur at any depth within the sinking slab, from shallow (0 - 60 km) to as great as 700 km. Over three-quarters of the wo ...
Convergent Boundaries: Here crust is destroyed and recycled back
Convergent Boundaries: Here crust is destroyed and recycled back

... as a whole sinks smoothly and continuously into the subduction trench. ...
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Aim: How do the different types of plate boundaries differ?

... Put your name, period and date on it.. The students who gets this question correct will ...
FCIM Assesment sc912e61
FCIM Assesment sc912e61

... FCIM Assessment SC.912.E.6.1 ...
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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.
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