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The hypsigraphic curve
The submersible Alvin
Echo sounding Seismic Profiling
As they cool down through the Curie point,
The Formation of Magnetic Stripes
The Ocean Floor Sinks as it gets older
The rift valley of a spreading center has a horst and graen structure
Structure of the sea floor
Transform faults offsett segments of the mid-oceanic ridge Abyssal Hills
Pelagic sediment becomes thicker with increasing distance from the mid-oceanic ridge
Evolution of a rift ocean
A passive Continental margin
An active Continental Margin
Formation of an Island Arc
An Andesitic Volcano on an Island Arc
Volcanic island vs. Guyot
Formation of an Atoll
Spreading Rates vs Ridge Volume
Landforms (Relief Features) associated with plate boundaries ? ? ?
Chapter 19 Plate Tectonics. Alfred Wegener l A man with an idea. l In 1912 l Noticed similar shapes l similar fossils l Similar rock structures l Similar.
Sea-Floor Spreading. Mapping the mid-ocean ridge The East Pacific Rise has a mid-ocean ridge. Curves around like a baseball. Lies hidden under hundreds.
Plate Tectonics. Brief Structure of the Earth Divided into layers: –Core, mantle, crust.
HDWK Mid Ocean Ridges –Detected a long time ago Molten Material (go look! Pillow Lava!) Magnetic Stripes Drilling Samples Subduction and Deep Ocean Trenches.
Chapter 14 The Ocean Floor. Section 14.2 Ocean Floor Features.
Warm Up – Page 78 Answer this on page 78 in your notebook: Mrs. Wilson, I still dont get _________________. Could you explain it again?
1.How do the rocks of the crust and lithosphere compare? Rocks in the crust are less dense and made mainly of granite. The rocks in the lithosphere are.
Warm Up 11/ What hypothesis states that the continents were once joined to form a single supercontinent? a. continental driftc. plate tectonics.
Plate Tectonics 6.E.2.2 Explain how crustal plates and ocean basins are formed, move and interact using earthquakes, heat flow and volcanoes to reflect.
CST Review Standard 3 Plate Tectonics operating over geologic time has changed the patterns of land, sea, and mountains on Earths surface. a.Know the features.
Chapter 9 Plate Tectonics. Section 9.4 & 9.5 Testing Plate Tectonics & Mechanisms of Plate Motion.
Geology - is the study of rocks and materials that make up Earth and the processes that shape it.
CONTINENTAL CRUST vs. OCEANIC CRUST Solar Wind.
Chapter 8: Plate TectonicsChapter 8: Plate Tectonics 8.1: Earth has several layers 8.2: Continents change position over time 8.3: Plates move apart 8.4:
Earth Science, 6e The Ocean Floor Chapter - 9. A-The vast world ocean (page 260) Earth is often referred to as the blue planet 71% of Earths surface is.
Continents change position over time. Alfred Wegener Evidence Hypothesis – continental drift Earths continents were once joined Super Continent called.
Birth of a Theory Continental Drift and Plate Tectonics.
Ch 7: Plate Tectonics A work in progress …. Animation of Continental Drift pangea moving Pangea w/ labels PANGAEA: – Name of a supercontinent. – All continents.
The Structure of the Earth and Plate Tectonics. Structure of the Earth The Earth is made up of 3 main layers: –Core –Mantle –Crust Inner core Outer core.
A mid-ocean ridge is an underwater mountain range, typically having a valley known as a rift running along its spine, formed by plate tectonics.
Theory of Plate Tectonics Plate Tectonics Plate Boundaries Causes of Plate Tectonics.
Continental Drift Chapter 10 Section 1. Continental Puzzle Do the continents fit together perfectly? What continents fit the best? What other information.
Do Now # 4 What is the difference between convergent, divergent, and transform boundaries?
Where is Andros??. Mercator Projection World Ocean.
Island Arc. What is an Island Arc? A group of volcanic islands, usually situated in a curving arch-like pattern that is convex toward the open ocean,
Seafloor Spreading Chapter 10, Section 2. Mapping the Ocean Floor Pre-WWI Pre-WWI –Ropes were lowered from boats to measure depth. 1940s/1950s 1940s/1950s.
How Do Earths Plates Move? Chapter 1, Section 2, pD14-19.
Who Wants to be a Millionaire? $500 We learn about the core of the earth by A – digging deep into the earth. B – studying earthquake waves. C – studying.
The Theory of Plate Tectonics. Plate Tectonics Plate tectonics is the theory that explains why and how continents move. By the 1960s evidence supported.
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