71) Strike and Dip - What Can Be Measured

Besides measuring the attitude of rock layers, strike and dip can be used to measure any other planar feature like faults, joints, and foliation. We here introduce another measurement: dip and dip direction a.k.a. plunge and trend.

[@migcaro7151]

what a blessing to have geologists like you uploading on youtube

[@littledockens]

Dear Mr Shorey, a great set of videos, many thanks, member of Jo Public, interested in stuff.

[@davidwilliamson2115]

very fully and well explained thank you

[@christopherwoodcock8535]

Very good vid. Thank you

[@jethrogore17]

It helps alot

[@geofflotton5292]

you need to change your video format.

[@CVshorey]

In what way and why? You're the first to have any issue. Thanks.

[@Formula400Pontiac]

No problem as far as i can see. Might be a problem with his browser setting? Dunnow... And while i have you attention (i hope). Can you please explain what the therm "greenstone" means and how this is claimed to influence gold in "nearby" host rock? Some time in a future video i mean...

[@CVshorey]

Greenstones are usually mudstones that have been heated and pressured enough to form abundant green chlorite. However it is a general term than can refer to any green rock like jade, and there is a term "greenstone belts" which are ancient zones of metamorphosed basalts.