:04:01
Why glacier tracks
in the Sahara
:04:05
oil in the Arctic,
coal in Antarctica?
:04:20
How had ancient seafloors
become mountain peaks?
:04:28
What processes of creation
:04:30
could resist the unceasing work
of glacier wind and water?
:04:35
Given the age of Earth,
these forces of erosion
:04:39
should have leveled
the continents a hundred times.
:05:01
Our search for answers
:05:03
opened eyes
smaller and larger than our own.
:05:08
We read the codes of fossils.
:05:12
lmages from space
of the torn continents.
:05:18
Heartbeats of earthquakes
from the Earth's interior.
:05:24
The molten flows
of its volcanoes.
:05:30
Slender cores drilled
from its deepest seafloors.
:05:34
From a dozen sciences
came the fragments of answers
:05:37
which were to revolutionize
the study of Earth.
:05:40
An astonishing theory
took shape.
:05:43
lt is a theory called
"Global Plate Tectonics"
:05:47
but it is nothing less
:05:48
than the rediscovery
of the Earth-
:05:51
an encompassing theory
of Earth's crust
:05:53
being contnuously
created and destroyed...
:05:57
of a genesis
which has never ended...