Chapter 2: Structural Mapping Techniques and Tools
In Chapter 2 we ‘find our bearings’ in order to locate outcrops
in the field and construct maps of geological structures. Geographic coordinates
are used by the Global Positioning System (GPS) for location (see above)
and the Universal Transverse Mercator (UTM) projection is used to project
geographic information from Earth's curved surface onto a piece of paper.
We describe a modern mapping campaign that utilized GPS technology to
create a precise structure contour map in a region where four sets of
faults intersect to disrupt and fold the surrounding strata. The mapping
was accomplished in a fraction of the time and with much greater control
than previously possible. We anticipate a new generation of structural
maps that will provide the impetus for more specific modeling of tectonic
processes and the data to better constrain those models.