An Example Stratigraphic Column
Width:
competency or
resistance to
weathering
Rock type
symbology
Height: unit
thickness (from
x-section)
Notes:




Your units should be colored to match you map and cross
sections
You do not need to assign dates to your units, but you need to
have relative ages correct (oldest unit on bottom)
If two units are the same age, you can place them next to each
other, or make a note that they are the same age or that is
impossible to determine which came first
Denote an unconformity with a wavy line between units (as
seen above in at least three places)
Unit names/labels
MIT OpenCourseWare
http://ocw.mit.edu
12.001 Introduction to Geology
Fall 2013
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