Tracking
through the desert southwest of the United States, you investigate rock
layers exposed in the walls of a canyon and over a broader area.
You collect fossils, observe strata one layer on top of another, and faults
and fractures that disrupt the rock layers. As you map these relationships,
you are able to project those relationships into the subsurface, creating
a "picture", or geologic cross section. Your studies reveal that
the rocks below your feet record an ancient marine basin once teaming with
life, now folded and faulted into a suspected petroleum trap. Click
on the image to investigate a site that describes Earth History. Now
that a suspected petroleum trap has been identified, the area must be drilled
with the well diggings carefully monitored as they are brought to the surface.
As the rock comes up from the well hole, the site geoscientist can determine
if the project is on target, potentially saving his company millions of
dollars. This latter aspect is an example of applied geoscience. |