Plate tectonics is a scientific theory describing the large-scale motion of Earth's
lithosphere. The theoretical model builds on the concept of continental drift ...
Mar 21, 2016 ... Plate tectonics is the theory that Earth's outer shell is divided into several plates
that glide over the mantle.
Full and clear information about Plate Tectonics: Convergent Boundaries,
Divergent Boundaries, Transform Boundaries.
Plate tectonics is the theory that the outer rigid layer of the earth (the lithosphere)
is divided into a couple of dozen "plates" that move around across the earth's ...
Get information, facts, photos, news, videos, and more about plate tectonics from
All About Plate Tectonics: Earth's Plates and Continental Drift. The Earth's rocky
outer crust solidified billions of years ago, soon after the Earth formed. This crust
Sep 15, 2014 ... Most movement occurs along narrow zones between plates where the results of
plate-tectonic forces are most evident. There are four types of ...
Plate tectonics articles, information, maps and teaching ideas from Geology.com.
Dec 2, 2015 ... The concept of plate tectonics was formulated in the 1960s. According to the
theory, Earth has a rigid outer layer, known as the lithosphere, ...
Plate tectonics describes the motions of the 15 to 20 large rigid and brittle
tectonic plates into which the Earth's outermost layer (called the "lithosphere") is ...