Plate Tectonic Theorist

 

129

Starter

Go Over Fridays Test

Plate Tectonic Theorist

12/15/14 12/15/14Application

Glue Notes here

Connection:

Exit:

What do you think makes up the Earth??

Practice:

130

Create a time line with a partnerusing the information from your notes

Summarize what you have learned from the notes. Minimum of 3-4 sentences

December 15, 2014 AGENDA

Objective: (8.9A) I can describe the historical development of evidence that supports plate tectonic theory by taking notes over historical figures

1 Starter2. Practice3. Time Line4. Exit

.

Date Lecture/ Activity/ Lab Page

Table of Contents

12/8 Newton’s third Law Lab 121-12212/9 Newton’s third Law Lab #2 123-12412/10 Newton’s laws Video Quiz 125-12612/11 Test Review 127-128 12/15 Plate Tectonic 129-130

Practice

• What do you think makes up the Earth?

 

128

Plate Tectonic Theorist

 

127

Starter

Plate Tectonic Theorist

12/18/2012 12/18/2012Application/ connection:

• End:

Paste starter here

Practice: Notes: Historians

Practice: Plate Tectonic Theories

 

128

Plate Tectonic Theorist

 

127

Starter

Plate Tectonic Theorist

12/18/2012 12/18/2012Application/ connection:

• End:

Paste starter here

Practice: Notes: Historians

Application:Historians of

Plate Tectonics

Theory: Uniformitarian Principle of Plate Tectonics:

This principle is commonly stated as follows:

The present is the

key to the past. Those holding this viewpoint assume that the geologic forces and processes -- gradual as well as catastrophic -- acting on the Earth today are the same as those that have acted in the geologic past.

(1785) James Hutton= Known as the Father of Geology

(1596)   Abraham Ortelius

Book: Thesaurus Geographicus ; linked with Theory of Plate Tectonics

In 1575 was a geographer and map maker for the king of Spain.

Ortelius suggested that the Americas were "torn away from Europe and Africa . . . by earthquakes and floods" and went on to say: "The vestiges of the rupture reveal themselves, if someone brings forward a map of the world and considers carefully the coasts of the three [continents]."

(1912)   Alfred Lothar WegenerTheory of

Continental Drift:He contended that, around 200 million years ago, the supercontinent Pangaea began to split apart into the continents of Laurasia in the northern hemisphere and Gondwanaland in the southern hemisphere. These continents then split in the smaller continents of today.

Evidences that were used to prove his theory were: rocks, climate, and fossils.

(1953; 1960)   Harry Hass

Linked with Theory of Plate Tectonics, Sea-Floor Spreading

With the discovery in 1953 of the Great Global Rift, a volcanic valley running along the midocean ridges, Hess looked back at data he had collected during the war.

In 1960 (and with further elaboration in 1962), he hypothesized that the sea-floor was spreading from vents in the Rift, where hot magma oozed up. As the magma cooled it forced the existing sea-floor away from the Rift on either side.

This theory accounted for and united several separate puzzles in marine geology: the youth of the ocean floor, the presence of island arcs, the deep sea trenches, and the origin of the midocean ridges.

(1930)   Arthur Holmes

Principal of the Theory of Continental Drift:

Suggested a mechanism that could explain Alfred Wegener's theory of continental drift: the power of convection. Currents of heat and thermal expansion in the Earth's mantle, he suggested, could force the continents toward or away from one another, creating new ocean floor and building mountain ranges.

(1799) Alexander von HumboltPrincipal of Theory of Continental Drift:

Embarked on a 5 year expedition in South America, where he accumulated much information about plant and animal life, and landforms. During this trip, he realized that the similarities of Africa and South America went beyond that of an apparent 'fit' of their coastlines.

Several mountain ranges that seemed to end on South America's eastern coast resumed on the western shores of Africa, and there were striking resemblances between the geological strata of the 2 continents - the mountains of Brazil, for instance, were the same as those of the African Congo.

Connection: Timeline

Create a timeline using the information

from your notes.

EXIT

• Summarize what you have learned from the notes and reading. Minimum of 3-4 sentences

 

Plate Tectonic Theorist

 

129

Starter

Go Over Fridays Test

Plate Tectonic Theorist

12/15/14 12/15/14Application

Glue Notes here

Connection:

Exit:

What do you think makes up the Earth??

Practice:

130

Create a time line with a partnerusing the information from your notes

Summarize what you have learned from the notes. Minimum of 3-4 sentences