These are two resources that will give you enough familiarity with Virginia geology to understand any references you find when researching fracking . Putting together a section of your report on geology would be very difficult and probably would not add any useful information to the report. This material should just be used for your own understanding of the geology.
A 35 minute video that gives a good over view of the geologic history of Virginia
View this first. It puts all of the geology in perspective. Unless you are interested in rocks, you can basically ignore the descriptions of what certain rocks look like and how they are formed. The descriptions and history of the physigraphic provinces will give you a picture of Virginia geology.
Table of Contents
You-tube explanation of geology
A well organized description that could be used as a reference and possibly cited. This will allow you to easily access topics that should make sense after you have seen the video.