4 Byr~1 Byr~250 Myr~100 MyrPresent Global Expansion Tectonics: A Challenge to Physics Dr James Maxlow – NPA 2012.

Slides:



Advertisements
Similar presentations
Howard Middle School 6th Grade Earth Science
Advertisements

Restless Continents.
STRUCTURE OF THE EARTH Noadswood Science, 2011.
Plate Tectonics The theory of plate tectonics was first proposed by
Jigsaw Puzzle Fit It is likely that the first clue that the continents were once joined together came from the close fit between the west coast of Africa.
Earth in Motion. Principle of Uniformitarianism: Processes observable and measurable today have created all the geological features, over long periods.
Pangaea Song and Lyrics
Continental Drift Alfred L. Wegener Untold tragedies of Continental Drift..
Pangaea. A puzzle of epic proportions The super continent of Pangaea was once made up of all the land masses we recognize on our earth today. Everyone.
1. Plate Tectonics defined. 3. Alfred Wegener and Continental Drift. Evidence Theory Outcome 2. What did Plate Tectonics replace? The History of Continental.
Plate Tectonics A Whole Lot of Shakin’ Goin’ On. What are tectonic plates? Tectonic plates are pieces of the crust that move around on top of the mantle.
Scientific Method at Work
Our Earth.  What do you think the earth looked like long ago?
Explain the process of continental drift and how it has evolutionized our planet.
Studying Earth Science
Plate Tectonics Chapter 3 (p 61-82). A New Understanding of Earth Earth has a geologically active surface How do internal layering and heat contribute.
Introduction We have recently studied the structure of the inside of the Earth. We will now be journeying to discover the processes that shape the surface.
E.S. Plate Tectonic Notes Continental Drift Continental Drift  Alfred Wegener, in 1912 noticed that the continental shorelines on either side of the Atlantic.
Continental Drift and Plate Tectonics subjects/dinosaurs/glossary/Contdrif t.shtml.
The Theory of Plate Tectonics
THE DYNAMIC CRUST. Aim and Learning Target: Aim: How can we evaluate the structure and movement of the earth and identify its past movements? Learning.
Plate Tectonics. Theory that helps explain most geologic processes. Theory that helps explain most geologic processes. Earth’s shell is made up of.
Formation of the Earth. Previous Theories  Continental Drift Theory  Developed by Alfred Wegner (1900’s)  Believed continents were once all combined.
Earth Science Plate Tectonics: A Scientific Theory Unfolds from Continental Drift.
Theory of Continental Drift James Hutton 1785 Uniformitarianism.
Unit 3 Physical Oceanography UEQ: What geological processes are responsible for the physical features of the Earth.
What makes the plates of the crust move?  Continental Drift  Pangea  Mid-Ocean Ridge  Convection  Theory of plate tectonics.
 The Theory of Plate Tectonics states that the rigid, outer layer of the Earth (the lithosphere) is divided into a couple of dozen plates that move around.
Restless Continents. Continental Drift Hypothesis proposed by Alfred Wegener in early 1900’s Said that continents had once been part of a single large.
Continental Drift.
Restless Continents 9/30/15
Plate Tectonics Chapter Layers of the Earth.
The Earth and it’s layers
Earth Science Essentials North Farmington High School
“Restless Continents”. A. One scientist who looked at the pieces of this puzzle was Alfred Wegener. 1. In the early 1900s, he wrote about his hypothesis.
The Theory of Plate Tectonics Chapter 4 Section 5.
PLATE TECTONICS. SCIENTIFIC METHOD Observations (Facts) Hypothesis (Interpretation – incompletely tested) Testing (More critical observations) SCIENTIFIC.
Earth Science Notes Take a second and write about the knowledge of plate tectonics you already have.
World Explorations By 1570, European explorers had mapped most of the Earth. People looked at these maps and began to notice, what?
The Theory of Continental Drift Observations Leading To and Evidences Supporting Theory.
Plate Tectonics. Exploring Inside the Earth Geologists have used evidence from rock samples and evidence from seismic waves to learn about Earth’s interior.
Plate Tectonics. What evidence supports the idea of plate tectonics? (5 reasons) 1.The Earth’s modern day continents seem to ‘fit’ together 2.Fossils.
Continental drift and plate tectonics. Continental Drift Modern scientists consider the age of the Earth to be around 4.54 billion years Over that time.
Alfred Wagner – proposed that in the distant past, the Earth ’ s continents were all joined as a single landmass. What was the name of his hypothesis?
DVD: PLATE TECTONICS Continental Drift: 4 minutes How the Earth was Made Billion Years Ago Talks about evidence of continental drift like the fresh.
The Theory of Continental Drift
Thursday, February 11 th DO NOW Tell the layers of the Earth. Which part is made of plates? Why do the plates move?
Pangaea.
PLATE TECTONICS The Unifying Theory of Earth Science.
Grade 7 Science Unit 4: The Earth’s Crust
The Theory of Plate Tectonics
Continental Drift & Plate Movement
Study Notes Standard 2 Objective 2
Continental Drift & Plate Movement
Evidence of Plate Tectonics
Plate Tectonics The theory of plate tectonics was first proposed by
Continental Drift and Seafloor Spreading Notes
Warm Up #9 What was Pangaea?.
Plate Tectonics.
9.1 – Continental Drift.
Please get out the picture you brought from home
Text Work… Read pages 110 – 111, Complete questions on page 118 #1, 2abc, 3, 4.
Plate Tectonics The theory of plate tectonics was first proposed by
Text Work… Read pages 110 – 111, Complete questions on page 118 #1, 2abc, 3, 4.
Pieces of a Puzzle.
Pieces of a Puzzle.
Earth Science Essentials North Farmington High School
5.5 Key concepts: What is the theory of plate tectonics?
CONTINENTAL DRIFT Alfred Wegner was one of several people who thought the continents looked like they fit together, so he proposed the continental drift.
Presentation transcript:

4 Byr~1 Byr~250 Myr~100 MyrPresent Global Expansion Tectonics: A Challenge to Physics Dr James Maxlow – NPA 2012

What is EXPANSION TECTONICS? 4.5 Byr~1 Byr~250 Myr~100 MyrPresent “A study of the structure and movement of the Earth's crust due to an increase in Earth radius”. Dr James Maxlow – NPA 2012

Global Expansion Tectonics “Proof of any theory is by direct observation or by direct measurement” Dr James Maxlow – NPA 2012

Geophysical Evidence (1960s) North Atlantic Ocean Mid-Ocean-Ridge Dr James Maxlow – NPA 2012

Bedrock Geology of the World CGMW & UNESCO (1990) Dr James Maxlow – NPA 2012

Geological Evidence – ( 0 to 200Ma) Dr James Maxlow – NPA 2012

Pangaea – Permian (~250Ma) Dr James Maxlow – NPA 2012

Is this Fact or Mere Coincidence?  “it is difficult to believe that chance alone can explain this fitting together of the continental margins” (Barnett, 1962)  “I have been continually amazed that the simplicity with which Earth expansion answers so much of the Earth's evolution has been so delayed in universal adoption” (Vogel, 1983). Dr James Maxlow – NPA 2012

Empirical Earth Radius Dr James Maxlow – NPA 2012

Earth Radius Formula R a = (R 0 -R p )e kt + R p  Where: R 0 = present Earth radius at time t 0 R a = ancient Earth radius at time t a R p = primordial Earth radius at time t p = 1700 kilometres t = time before the present (negative) k = a constant = 4·5366x10 -9 /year Dr James Maxlow – NPA 2012

Kinematics of Earth Expansion Dr James Maxlow – NPA 2012

Mass, Density & Surface Gravity Dr James Maxlow – NPA 2012

Current Rates of Increase  RadiusdR/dt 0 = 22 mm/year  CircumferencedC/dt 0 = 140 mm/year  Surface areadS/dt 0 = 3·5 km 2 /year  VolumedV/dt 0 = 11,000 km 3 /year Assuming a constant density and increasing mass  MassdM/dt 0 = 60 x t/year  Surface gravitydg/dt 0 = 3·4 x msec -2 /yr Dr James Maxlow – NPA 2012

Scientific Dilemma  Unbeknown to most scientists we have now reached a critical point in the development of science. One seemingly trivial reorientation of scientific perspective, from a static radius Earth to an actively increasing Earth radius viewpoint, has the potential to completely negate the established consensus of opinion and scientific beliefs of today. (James Maxlow 2002) Dr James Maxlow – NPA 2012

Suggested Causal Mechanism Dr James Maxlow – NPA 2012

A Challenge to Physics To accept the challenge and find me a convincing “motor and mechanism” to explain the observed empirical increase in Earth surface area and radius through time. Dr James Maxlow – NPA 2012

Publications  Hardcopy Book  E-Book Webpage: Thesis: WCU Dr James Maxlow – NPA 2012