Pictures and explanations below

http://www.gov.ns.ca/natr/meb/field/mesozoic.asp

Very detailed geological data and drawings below will give insight into how these formations evolved.

http://web.cim.org/geosoc/docs/pdf/EMG15_2_Hundert_etal.pdf

SMU Field Trip below 

http://conjugatemargins.com/download_assets/30/Field_Trip_3_-_Pe-Piper___Piper.pdf