Geology 15 (Faults, Folds, and Joints)

This lecture video discusses the way in which rocks deform and change shape under stress by folding, faulting, and forming joints. I cover the types of faults (dip-slip and strike-slip), the types of folds (anticline and syncline), and the features along faults and folds, like shutter ridges, sag ponds, fault-formed springs, and pop-up structures. I hope you enjoy it!

[marshaezell]

Renewing my interest in Geology --- lots has been determined since my Geo 101 class in 1965! Thanks for your lectures.

[nothanks]

Really appreciate these lectures, Sir. I'm basically teaching myself geology for fun since I've been interested in rocks and fossils since I was young (I've got several university level textbooks that I try - sometimes in vain - to understand) and these lectures really help to fill in the holes. Thank you.

[ammaralajlan]

Thanks for sharing this video.I studied Structural Geology last year and ended up with a confused mine due to the poor teaching skills of my professor. But what you presented in this video was exciting and interesting and hooked me back to study Structural Geology once more. Thanks for this well presented and explained subject 👏🏼

[Craigdna]

Superb diagrams and pictures and excellent, patient, dissertation. This should be taught all over as you do an informative job and appease all types of learners, covering both auditory and visual learners. Thanks for sharing.

[maxinee]

Wow! The examples you showed us with the explanations were just amazing, I have heard those terms before but with all the pictures and explanations i can visualize it now. This is the first of your videos I have watched I will subscribe so that i can see more of these lectures. Thank you so much, I am 78 years old and so appreciate this training.

[jamesraymond]

Excellent lecture. Well spoken and well illustrated, not a single unnecessary word. These deformations really drive home the idea of plate tectonics.

[Kakkoii_otoko]

There are a lot of folds, here on Okinawa, Japan. Okinawa is caught between the Okinawa Trough and Ryuku Trench. Some fold are almost straight up, while others are wavy.

[uttaranath]

Real life examples helped me to understand the concepts easily. Good work.

[KozmykJ]

I must Stress that I Strained to understand the Stress and Strain distinctions before this.
So much so that I Folded under the Sheer magnitude.
I did not Break but after some Time I was Shattered.
Luckily there was little permanent Deformation.
My head, though full of rocks, managed to retain some Elasticity.
Some Cooling Joints may well have alleviated matters.
😝

[mnergizci]

This tutorial is fantastic! I highly recommend it to everyone interested in geology..

[jwcinc]

I am glad to see you posting videos again!! You and Nick Zentner are the best.

[johnlord]

Excellent presentation - have always wondered about PNW and dikings through granite or basalt and there is immense mini-dikes, while also having compression features, and you just have to wonder "WTH was going on !" to make such events of multiple intrusions, then deformations.

[rogerdudra]

Good lecture. The recat structure in northern Africa is a great example too, that I've studied.

[guillermorodriguez]

01 29 2021 From El Salvador C.A, Thanks a lot for your lecture, Being an MD, haven´t had much time for Geology, never the less I have learn a lot from this lecture. We dont have Mountain Range but, a lot of Volcanos, so our geology is diferent from what you have explained, again thank you very much.Guillermo Rodríguez-

[stevenbaumann]

Watching this on the way to work. I can go on about folding for hours, so you’re doing better than I. I flip stress and strain even though I know the difference when speaking too.

[efegulcek]

Greetings from METU civil engineering, these lectures've been very helpfull for my geology class. Thanks a lot!

[ralphnabozny]

thank you. I really like the vocabulary.

[MasterMalrubius]

A return to one of my favorite subjects. And an interesting focus also!

[Styx-wfql]

Thank you, I’ve a horrible habit of procrastinating and so now I’m cramming for my structural final tomorrow 😭

[randyriley]

Very informative lecture. Thanks for sharing so patiently. Great examples and explanations.