How to Order Events on a Geologic Cross-Section

Instructional video showing how the principles of relative age dating apply to ordering events in a geologic cross-section.

[Symz-III]

Your videos are very infomational and to the point, thank you so much!

[luberdoo]

Thank you for your instruction. I really appreciated your concise explanations of these very complex processes. I have watched all of your videos and the only feedback I would give is that it would be helpful for a 74-year-old beginner to see physical samples of some of the rock/mineral descriptions. I am sure that in your in-person courses, you have samples. I am also bummed out that you appear to no longer create instructional videos. That is too bad for someone like me because you are extraordinary in teaching us and I am betting that you are an excellent professor. I appreciate you.

P.S. I just discovered at your Ruppert Rocks Geology site and found many more videos and a few of them actually do have samples and photos. So, the feedback I gave earlier is moot. I would have enjoyed more samples though. Thank you and I'm looking forward to watching the rest of your teaching videos. Many thanks.

[mohammadrezaahmadi]

Intrusion of G, as cross-cutting relationship, is not younger than G and P? We really have no idea that G introduced before or after Y and P sedimentation.