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Chapter 6 The Active Earth : Plate Tectonics 2

저작시기 2007.05 |등록일 2009.12.30 파워포인트파일MS 파워포인트 (ppt) | 20페이지 | 가격 900원

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해양확장설과 판구조론에 관한 프리젠테이션

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Chapter 6 The Active Earth : Plate Tectonics 2
Mid Oceanic Ridge
Magnetic Orientation Near the Ridge
Sea-floor Spreading Hypothesis
Evidences of the Sea-floor Spreading Hypothesis
The Theory of Plate Tectonics
Plate Boundaries
Divergent Plate Boundaries
Changing Depth of Lithosphere at the Divergent Plate Boundary
Mid Oceanic Ridge : Rifting in the Oceans
Mid Oceanic Ridge System
Splitting Continents : Rifting in Continental Crust
Convergent Plate Boundary
1. Convergence of Oceanic Crust with Continental Crust
2. Convergence of Two Plates Carrying Oceanic Crust
3. Convergence of Two Plates Carrying Continents
Transform Plate Boundaries
The Summary of the Nature of a Tectonic Plate
The Summary of the Nature of a Tectonic Plate

본문내용

Transform Plate Boundaries
Transform plate boundary : two plate slide horizontally past one another as they move in opposite directions
Frequent earth quake

San Andreas Fault : A transform plate boundary between the North American plate and the Pacific plate



Transform plate boundary : 보존형 경계
San Andreas fault : 샌안드레아스 단층
The Summary of the Nature of a Tectonic Plate
Plate : a segment of the lithosphere
Consists of the upper mantle and the crust
The average thickness of the plate
A plate covered by an oceanic crust : 75 km
A plate covered by a continental crust : 125 km
The portion at an oceanic spreading center : 10-15 km
A plate horizontally glide
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