AIM: Introduce you to scientific study of oceans and seas

2/3/03


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AIM: Introduce you to scientific study of oceans and seas

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Ocean floors are markedly different from the land we see around us

Once earth scientists recognized those features, they were forced to change the way they organized their thoughts about geologic processes

You will be successful in marine science to the extent that you too can adopt a marine perspective on earth

The adoption of plate tectonic theory by earth scientists is sometimes cited as a classic example of what the historian of science Thomas Kuhn calls a paradigm shift

Scientific revolutions, I

Scientific revolutions, II

Special earth sciences perspectives

Methodology leads to the tenet ‘the present is the key to the past’

Marine geology and the earth system

Global topography

20 km (13 mi) is a large distance to us. Relative to earth’s radius, however, 20 km is small.

What is the distribution of elevations on earth?

Greatest changes in average elevation occur between 1 and 3 km below sea level

Author: Steven Wojtal

Email: steven.wojtal@oberlin.edu

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