all the questions in the attachment below

Chapter 2: Read the entire chapter.

Watch the following Youtube videos from “Geoscience Videos”

https://www.youtube.com/watch?v=vxjUn8PVvmc

https://www.youtube.com/watch?v=7nxITuot-ko

Vocabulary (do not turn in):

Alfred Wegener

Continental drift

Evidence for continental drift

Jigsaw puzzle fit of continents

Matching sequences of rocks

Matching sequences of faults and mountain chains

http://carnivoraforum.com/topic/9691943/

Climatic evidence

Glacial ages

Matching fossil assemblages (groups of fossils)

Problems with continental drift

Power source / why continents move

How continent move

Harry Hess

Seafloor spreading

Mantle convection

Mid-ocean ridge = spreading center

Deep sea/ocean trench = subduction zone

Evidence for Seafloor spreading

Magnetic stripes on the seafloor

Magnetic field

Age of the seafloor

Heat Flow

http://pubs.usgs.gov/gip/dynamic/developing.html

Plate Tectonics

Evidence for plate tectonics

Hot spot tracks

Apparent polar wander

Igneous rocks

Magma

Magnetite

Basalt

Distribution of earthquakes and volcanoes

Types of plate boundaries (know examples)

Divergent plate boundaries (DPB)

Mid-ocean ridge = spreading center = DPB

Ridge vs. rise

Difference in shape, size, and earthquakes

Rifting = continental rifting

Convergent plate boundaries (CPB)

Oceanic vs. Oceanic CPB

Island arc Subduction

Continental vs. Oceanic CPB types of volcanoes

Continental arc types of earthquakes

Continental – Continental CPB

Continental collision

redxken192jyd.blogspot.com

Types of earthquakes

Transform plate boundaries (TPB)

Oceanic transform faults

Continental transform faults

Earthquakes at TPB

Hot Spots

Mantle plumes

Hot spot tracks

Formation of guyot (table mountains)

Evidence for plate motion over time

Coral reef development and relationship to plate tectonics and isostasy

Fringing reef

Barrier reef

Atoll

Paleogeography

Continental accretion

Predictions for the future

Wilson Cycle – life cycle of oceans

http://www.starrynighteducation.com/sntimes/2012/jan/

Name ____________

Homework:

1) Concept Check 2.1 #1 Cite the lines of evidence Alfred Wegener used to support his idea of continental drift? Why did scientists of the time doubt that continents had drifted?

2) T or F? Harry Hess’s Theory of Seafloor Spreading explains only the motion of the seafloor, but not continental movement.

3) Answer the following questions about evidence for seafloor spreading using the terms magnetic stripes, age of the seafloor, deep sea trenches, mid-ocean ridges, or both.

a. Records the periodic switch of the Earth’s magnetic field (N <-> S) like a VCR records a movie._________________

b. Least / smallest at the spreading center, and increases with distance away from the spreading center. _________________

c. Also known as the spreading center. _________________

d. Locations where seafloor is believed to subduct back into the mantle. _________________

4) What do I mean when I say that plate tectonics combines continental drift and seafloor spreading?

5) What is the power source that is believed to move the plates? _________________

6) About how fast do the plates move? a) centimeters per year b) meters per year c) kilometers per year d) what is a plate?

7) T or F? Plates with both divergent and convergent plate boundaries move faster than plates with only a divergent plate boundary (see videos listed above for answer).

8) Concept Check 2.4 #1 How is the age distribution pattern of the Hawaiian Island- Emperor Seamount chain explained by the position of the Hawaiian hot-spot? What could have caused the curious bend in the chain?

9) Complete the following table comparing the various types of plate boundaries.

Type of Plate Boundary	Variety of that Type of Plate Boundary	Volcanoes: none, explosive, non-explosive.	Earthquakes: small/large, shallow / deep / both	Effect on plate size: grows, shrinks, stays the same	Example
Divergent Plate Boundary (DPB)		Non-explosive (basalt)			Mid-Atlantic Ridge
Convergent Plate Boundary (CPB)
	Ocean-Ocean				Marianas Trench
	Ocean- Continental
	Continental- Continental
Transform Plate Boundaries (TPB)			Large, shallow	Stays the same

10) T or F? Subduction along a continental margin (edge of a continent) will cause the continent to get bigger (wider) over time.

11) T or F? Table mountains / guyot formed by wave erosion when sea level was much deeper (>2000 m) than it is today?