4) The earth's hard outermost mechanical layer, the lithosphere, Is fragmented into several segments called lithospheric/tectonic plates. 5) These plates float on top of a fluid-like mechanical layer called the asthenosphere. 6) Materials in the mantle which includes the asthenosphere form convection currents. 7) Convection currents form when the materials at the bottom of the mantle are much hotter than the materials at the top of the mantle. The hotter materials float up while the colder materials sink down forming a circular flow of magma. 8) The movement of convection currents in the asthenosphere drags the lithospheric plates floating above it causing them to move. 9) The materials at the bottom of the mantle are hotter because they absorb the heat coming from the core. The core of the Earth is the hottest compositional layer. 10) When a convection current moves up it could create a crack in the lithosphere into which magma could come out. We usually find these cracks in the ocean floor. We call them mid-oceanic ridges. 11) Continental crusts and oceanic crusts are part of the lithosphere. 12) The continents move but not on their own. It is because continental crusts are part of the lithosphere and the lithosphere moves.
4) The earth's hard outermost mechanical layer, the lithosphere, Is fragmented into several segments called lithospheric/tectonic plates. 5) These plates float on top of a fluid-like mechanical layer called the asthenosphere. 6) Materials in the mantle which includes the asthenosphere form convection currents. 7) Convection currents form when the materials at the bottom of the mantle are much hotter than the materials at the top of the mantle. The hotter materials float up while the colder materials sink down forming a circular flow of magma. 8) The movement of convection currents in the asthenosphere drags the lithospheric plates floating above it causing them to move. 9) The materials at the bottom of the mantle are hotter because they absorb the heat coming from the core. The core of the Earth is the hottest compositional layer. 10) When a convection current moves up it could create a crack in the lithosphere into which magma could come out. We usually find these cracks in the ocean floor. We call them mid-oceanic ridges. 11) Continental crusts and oceanic crusts are part of the lithosphere. 12) The continents move but not on their own. It is because continental crusts are part of the lithosphere and the lithosphere moves.
Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
Section: Chapter Questions
Problem 1LR
Related questions
Question
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 3 steps
Recommended textbooks for you
Applications and Investigations in Earth Science …
Earth Science
ISBN:
9780134746241
Author:
Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:
PEARSON
Exercises for Weather & Climate (9th Edition)
Earth Science
ISBN:
9780134041360
Author:
Greg Carbone
Publisher:
PEARSON
Environmental Science
Earth Science
ISBN:
9781260153125
Author:
William P Cunningham Prof., Mary Ann Cunningham Professor
Publisher:
McGraw-Hill Education
Applications and Investigations in Earth Science …
Earth Science
ISBN:
9780134746241
Author:
Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:
PEARSON
Exercises for Weather & Climate (9th Edition)
Earth Science
ISBN:
9780134041360
Author:
Greg Carbone
Publisher:
PEARSON
Environmental Science
Earth Science
ISBN:
9781260153125
Author:
William P Cunningham Prof., Mary Ann Cunningham Professor
Publisher:
McGraw-Hill Education
Earth Science (15th Edition)
Earth Science
ISBN:
9780134543536
Author:
Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:
PEARSON
Environmental Science (MindTap Course List)
Earth Science
ISBN:
9781337569613
Author:
G. Tyler Miller, Scott Spoolman
Publisher:
Cengage Learning
Physical Geology
Earth Science
ISBN:
9781259916823
Author:
Plummer, Charles C., CARLSON, Diane H., Hammersley, Lisa
Publisher:
Mcgraw-hill Education,