• Study Resource
  • Explore Categories
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
Foundations* - Chapter 9, 10, and 11 Exam
Foundations* - Chapter 9, 10, and 11 Exam

... 2. One type of evidence that supports Wegener’s continental drift hypothesis is the existence of ____________________ that begin on one continent and continue on another. 3. Most scientists in Wegener’s day rejected his hypothesis for continental drift because he could not explain a(n) _____________ ...
Ophiolite_ppt_presentation
Ophiolite_ppt_presentation

... plates in ocean setting. The particular type of plate boundary that yields island arcs is called subduction zone. • Fore-arc basin – located to the “front” of the volcanic arc; forms toward the subducted plate side. • Back-arc basin – associated with island arc and subduction zone; found at converge ...
HW 2: Plate Tectonics
HW 2: Plate Tectonics

... Attached is the map portion of a 3-dimensional diagram of three major tectonic plates (labeled plates 1 through 3) carrying two different continents: “Bella Casa” and “Mirabella”. The large arrows in the middle of the diagram indicate the direction of plate movement; the dashed lines represent the l ...
Investigation 6: What Happens When Plates Collide? Investigation
Investigation 6: What Happens When Plates Collide? Investigation

... 11. Look at your hypothesis in question #7. Was your hypothesis correct? Think about how the volcanoes are formed. Restate your hypothesis about which plate is subducting? Support your hypothesis with evidence about processes that occur at a subduction zone. ...
Earth Science Learning Outcomes
Earth Science Learning Outcomes

... 2. explain and illustrate how thermal energy is transferred through conduction, convection, and radiation, with reference to kinetic molecular theory and practical examples (ex. home heating, cooking methods, loss of body heat, insulation) 3. describe the composition of the following layers of the E ...
Study Guide 10
Study Guide 10

... a. Island arc b. Fracture zone c. Theory of plate tectonics d. Tectonic plates e. Lithosphere f. Asthenosphere g. Subduction h. Convection i. ...
Geology 101, Fall 2006  continental drift vs. plate tectonics
Geology 101, Fall 2006 continental drift vs. plate tectonics

... active contintental margin vs. passive continental margin ...
Document
Document

... Plates—continental crust, oceanic crust Features—faults, trenches, mid-ocean ridges, folded mountains, hot spots, volcanoes ...
Example
Example

... 1. Divergent- place where two plates move apart o Most occur along mid-ocean ridges where sea-floor spreading occurs o On land, two plates slide apart creating a rift valley o Can produce EQs ...
Late 20th Century Tests of the Continental Drift Hypothesis
Late 20th Century Tests of the Continental Drift Hypothesis

... ridge/rift lie the abyssal plains – basaltic oceanic crust that has moved away from the ridge, cooled, and subsided as far as it can. Depths on the abyssal plains run fairly consistently 4-5 km below seal level. Except for the ridge, there is generally little volcanic or seismic activity in such an ...
PPT file
PPT file

... How exactly did it form? As new oceanic lithosphere displaces the old, the western edge of the Pacific plate collides violently with the Marianas Plate forcing it under and back into the mantle. The point where these two plates collide is called a “Subduction Zone” (Ocean-toOcean in this case) and ...
Earth Unit Review
Earth Unit Review

... Using the map provided, locate the seven MAJOR plates. Highlight them in yellow and note where the Ring of Fire is located in Red. ...
Video Study Guide: Earth Revealed
Video Study Guide: Earth Revealed

... Video Study Guide: Earth Revealed Episode 6: Plate Dynamics What are tectonic plates? Describe their general motions. ...
PT Magic Squares - Welcome to Rossignols.net
PT Magic Squares - Welcome to Rossignols.net

... Directions: Above is a group of terms related to Plate Tectonics. Your task is to match the definitions below with the correct term. Place the number of the definition in the box with the term. Check your answers by adding the numbers to see if the sums of each column and each row add up to the same ...
Spreading Ridge Axis, Divergent Plate Boundary Subduction Zone
Spreading Ridge Axis, Divergent Plate Boundary Subduction Zone

... lower pressures near the surface and so melt a small amount. When mantle rocks melt, that melt rises quickly to the surface to produce crust. ...
Study Guide: Unit ESS2-1 and ESS2
Study Guide: Unit ESS2-1 and ESS2

... 5. Pull-apart rift zones are generally associated with a divergent plate boundary. 6. The temperature below which magnetic material can retain a permanent magnetization is called the currie point. 7. A very long-lived magma source located deep in the mantle is called a hot spot. 8. Linear, magnetic ...
Volcano Guided Reading with answers
Volcano Guided Reading with answers

... Volcano Guided Reading with answers ...
Study guide for Mrs
Study guide for Mrs

... Inner core Outer core Mantle Crust Subduction boundary/zone Divergent boundary Convergent boundary Transform boundary Mid-ocean ridge Pangaea Lithosphere Tectonic plates B. Know the directions in which the different boundaries move (Remember: “definition disco” divergent…convergent…transform…subduct ...
Ocean Basins
Ocean Basins

... • A chain of mountains formed during seafloor spreading – Composed of “new” basaltic rock with no sediment – If they extend above the water, they are called islands ...
Oceans 11 Ocean Floor Model
Oceans 11 Ocean Floor Model

... A curved chain of volcanic islands that are located at a tectonic plate margin A subsea chasm extending along the crest of a mid-ocean ridge, locus of the magma upwellings that accompany seafloor spreading. A submarine mountain ...
UNIT 2 Metamorphism and tectonic plates: Metamorphism is a
UNIT 2 Metamorphism and tectonic plates: Metamorphism is a

... UNIT 2 Metamorphism and tectonic plates: Metamorphism is a process where the type or distribution of the minerals in rocks changes because of high pressure or very high temperatures. This process is called isochemical because the global chemical composition of the rock essentially remains unchanged. ...
Study Guide
Study Guide

... 9. A. Ridge push and slab pull hypothesis: as new ocean crust moves away from the ridge, it cools, increases in density and eventually descends, pulling the trailing lithosphere ...
Continental Drift, Mountain Building, and Plate Tectonics
Continental Drift, Mountain Building, and Plate Tectonics

... These fossil magnets reflect changes in the magnetic field through time. INCLINATION is the angle the magnetic makes with the earth’s surface = latitiude DECLINATION is the angle between the magnetic and geographic north pole Sea floor spreading shows a pattern of increasing age of the seafloor and ...
earthsciencechap17qu..
earthsciencechap17qu..

... 3: A mid-ocean ridge is a giant mountain range in the middle of an ocean. 4: Subduction is a process in which one plate is thrust downward into the mantle beneath another. 5: The asthenosphere is a soft layer of partially molten rock in the upper mantle. 6: A plate is a huge segment of the lithosphe ...
GRADE 10 EARTH AND SPACE SCIENCE: PLATE
GRADE 10 EARTH AND SPACE SCIENCE: PLATE

... SUGGESTED ACHIEVEMENT INDICATORS ...
< 1 ... 215 216 217 218 219 220 221 222 >

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.
  • studyres.com © 2025
  • DMCA
  • Privacy
  • Terms
  • Report