Outcrop Descriptions
In
order to record information and observations at an outcrop a good
geologist always
has a notebook, hand lens, compass, measuring tape or stick, grain size
and color charts, maps, and an acid bottle with her or him at every
rock outcrop
they examine. The best way of recording sedimentological information in
the field is to construct a graphic log and write detailed
observations next to it, supplemented by field sketches and
photographs. Graphic logs enable geologists to compile
descriptive information in a concise format, and
make it possible to display a large amount of information, such as mean
grain
size, composition, bed geometry, sedimentary structures, paleocurrents,
fossils, colors, etc. using standard symbols that geologists everywhere
can interpret.