Hot Spots What They Are Their Characteristics How They Behave

Slides:

Advertisements

Similar presentations

Plate Tectonics 1.1 Earth has several layers. 1.2

Advertisements

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.

Plate Tectonics. What is Plate Tectonics? According to the plate tectonics theory, the uppermost mantle, along with the overlying crust, behaves as a.

Dynamic Earth Class February 2006.

About Hawaii: “Loveliest Fleet of Islands Anchored in any Ocean” Where do the islands come from? Why do they form? How do they form? (V1)

Earth Structure Basic layers Layered surface structure Spreading centers Subduction zones Hot Spots Transform faults Evidence Animations.

Plate Tectonics. Earth’s Interior Earth is made of layers Crust Upper Mantle (asthenosphere ) Mantle Outer Core Inner Core Scientists discovered these.

Volcano Research Paper

TOPS Top 10 Geography in conjunction with How come the most volcanic place on Earth is nowhere near a.

Volcanoes Earth and Space Science. How many are there? About 60 of the ~550 known active volcanoes erupt each year There are many more volcanoes underwater.

The Structure of the Earth and Plate Tectonics. 2 Structure of the Earth The Earth is made up of 3 main layers: –Core –Mantle –Crust Inner core Outer.

Miss Nelson SCIENCE ~ CHAPTER 6 VOLCANOES. Volcanoes and Plate Tectonics SECTION 1.

Class 1: Plate Tectonics Review Today’s topics:  Earth’s compositional layers  Plate tectonics: theory & actions.

10.3 Plate Tectonics By: Brendan, Sid, and Andy. Video 

Hot Spots. A major hot spot in the Pacific ocean created the Hawaiian Island and Emperor Seamount island chains.

Volcanoes and Plate Tectonics (pages 200–203) Volcanoes and Plate Boundaries.

Hot Spot Volcanoes Animation Animation 2.

How are oceans formed? Continents and ocean basins exist on lithospheric plates that move relative to each Other. Between their margins, new land is always.

The Theory of plate tectonics, Plate Movement, & Hot Spots

Plate Tectonics By Anna Benoliel. Divergent plate boundaries How they work : When Two tectonic plates are moving away from each other. Where they occur.

Warm Up 11/21 Which of the following is NOT true about a batholith?

Chapter 7 Volcanoes.

Section 1: Volcanoes and Plate Tectonics

VOLCANOES & IGNEOUS ACTIVITY CHAPTER 10. Section 10.1.

Section 2: Earthquakes and Volcanoes Preview  Key Ideas Key Ideas  Bellringer Bellringer  What are Earthquakes? What are Earthquakes?  Measuring Earthquakes.

Convergent Plate Boundaries  plate motions provide the mechanisms by which mantle rocks melt to generate magma Plate Tectonics and Igneous Activity.

Tectonic Landscapes: Hotspots

How come the most volcanic place on Earth is nowhere near a plate margin? TOPS Top 10 Geography in conjunction with

Convection currents in the mantle result in the movement of lithospheric plates. The motion and interactions of the plates can create patterns in the.

Plate Tectonics The Earth’s crust consists of a number of plates which are in motion (quite slow)

Plate Tectonics Movement of the Crust.

Warm Up 11/3 What hypothesis states that the continents were once joined to form a single supercontinent? a. continental drift c. plate tectonics b.

8.E.5B.1 Analyze and interpret data to describe patterns in the location of volcanoes and earthquakes related to tectonic plate boundaries, interactions,

Learning Goals Identify locations where volcanoes are most likely to form. Explain the factors involved in volcanic eruptions. Evaluate the features.

Chapter 8 Volcanoes Section 1, Why Volcanoes Form

More Evidence for Plate Tectonics

Plate Tectonics.

#14 Hotspots and Magnetic Reversals Notes

I. Section 1 Volcanoes and Plate Tectonics

ON YOUR OWN, Match the vocabulary to it’s definition

Driving Forces and Effects of Plate Tectonics

Plate Tectonics

TOPIC 1:TECTONIC PROCESSES AND HAZARDS

CHAPTER Plate Tectonics 18

Volcanoes Unit 12.2.

PLATES AND TECTONIC MOVEMENT

The Earth’s Crust in Motion…

Plate Tectonics.

Warm-Up: Wed 2/19 Write What You Know!

10.3 – Plate Tectonics and Igneous Activity

How do tsunamis move? Caused by underwater earthquake, landslide, or volcanic eruption. The tectonic movement causes the ocean water to move about 500.

What happens at plate boundaries (stays at plate boundaries).

VOLCANOES CH. 3.1 Volcano (3:08) Volcano.

Chapter 3: Volcanoes.

Causes of Volcanoes.

Plate Tectonics.

Year 3 Revision for test on tectonics

Mechanisms of Plate Motion

Measuring Plate Motion

VOLCANOES AND PLATE TECTONICS

Hot Spots Miss Fogg Spring 2016.

Volcanoes Plate Tectonics.

5% of all known volcanoes in the world are not located close to a plate margin. These are known as intraplate volcanoes and occur as a result of mantle.

INSIDE EARTH: CHAPTER 3- VOLCANOES

Cornell Notes: Types of Volcanoes & Hot Spots

Presentation transcript:

Hot Spots What They Are Their Characteristics How They Behave How We Know What We Do Why You Should Know

Definition A volcanic center, 60 to 120 miles (100 to 200 km) across and persistent for at least a few tens of million of years, that is thought to be the surface expression of a persistent rising plume of hot mantle material. Hot spots are not linked to arcs and may not be associated with ocean ridges.

Diagram of a Typical Oceanic Hot Spot

Convection in the Earth’s Mantle

The Hawaiian Islands & the Hawaiian-Emperor Seamount Chain

Mantle Plume Note: This concept is being debated…

Possible Motion of Heated Rock Inside the Earth

Compositional vs. Mechanical Layering

Earth’s Major Plates

Hot Spot Time Progression

Life Cycle of a Typical Oceanic Hot Spot

USGS Map of Worldwide Hot Spots

Hawaiian Island Hot Spot Track

Yellowstone Hot Spot Track

Latest Ideas Hot Spots may be related to huge blobs of magma that rise from within the mantle and pool against the base of the lithosphere May not be associated with “plumes”

Mantle Plume Concept Phasing Out? Some geologists think that the mantle plume idea isn’t holding up; they think they can explain magma melting by drops in pressure, rather than deep-seated heat sources…

Summary ~50-100 miles wide Live for 10’s of millions of years Are fixed in the mantle Are NOT linked to arcs May not be associated with ridges Have a life cycle Leave a track of volcanic features on the landscape (or seascape)