going in a college field trip after a couple of months and I'm very happy to know what I'll be doing from now!! thank you, this channel has been my next teacher since my first year of BSc!!
I taught myself an advanced method of measuring Strike/dip from a surface you can’t reach. Essentially if you can see the surface, and you can move your own position until your eye is in line with the plane of the surface (easy to tell because it is the point where perspective sort of makes it vanish into a two dimensional line). Now visualise the two dimensional line (plane) continuing down to the ground. (You can also hold out a ruler or yardstick or a flat book to help) Hold your compass level out in front of your eye and measure the direction horizontally along that virtual plane and that is the Strike. Measure the dip of that virtual plane at the horizontal and it is the Dip. You can also just hold out a book or clipboard in front of you and align it with the plane and you or someone else can measure the strike and dip of the surface as normal. It won’t work for EVERY defect you can see, as there has to be a point on the plane of that defect where you can physically stand, and that isn’t always available (joints dipping into a slope for example). Or where you only have a single vantage point to observe from. It does work for most though, and is highly accurate.
Oh my god thank you. I Started taking a structural geology class this semester and the professor just told us to use the “right hand rule” and put the “red in the shed” but never told us what those meant.
I'm watching this again several months or maybe even a year or so after I gave it a thumbs down the first time, for some reason. Either I've gotten smarter, or stupider, and I'm taking the thumbs down back, but time will tell if I give it a thumbs up. I have to say that, after watching more videos on structural geology, this one ain't as bad as I thought. Either that, or I'm not so cranky today. Having now watched it completely to the end, it occurs to me that I don't actually know all that much about what actually I might be measuring strike and dip on--a fault, fracture, or whatever. So I still have plenty to learn. Many thanks.
#1:51 at this moment 1:51 i found that E in the W place,!! i search for some compass and all correct as i know unless this compass " Brunton Compass", i know the angel is correct which is 90 D, but i can't understand why the place is not match as i know "West on the left hand & East on the right hand" i hope that you know what i mean, thanks.
Brunton compasses switch the east and west so you can take a direct strike measurement without turning the orienteering dial like on a Sylva. Once you use one, you'll understand how much easier it is.
@@CVshorey thanks a lot for that, so i search a lot for the reason but i didn't get a complete useful information about that, any way it doesn't matter, i just want to know if i use the Brunton compass *with it's revers* and i get 10 Degree NE, so does it be already 10 D or 350 D?
I have a compass ,couldn't you just see in which direction the ,say, quarts vein was running and then place a spirit level which has a degree angle dial on them giving you the degree of angle of the vein is that the same thing or not .
going in a college field trip after a couple of months and I'm very happy to know what I'll be doing from now!! thank you, this channel has been my next teacher since my first year of BSc!!
Have fun on your trip. Take lots of good measurements and notes.
“First, you need to figure out which is your right hand”......I love it!
The thumbs up button . . . I can't tell if it's a right or left hand. ;)
I taught myself an advanced method of measuring Strike/dip from a surface you can’t reach.
Essentially if you can see the surface, and you can move your own position until your eye is in line with the plane of the surface (easy to tell because it is the point where perspective sort of makes it vanish into a two dimensional line).
Now visualise the two dimensional line (plane) continuing down to the ground. (You can also hold out a ruler or yardstick or a flat book to help)
Hold your compass level out in front of your eye and measure the direction horizontally along that virtual plane and that is the Strike. Measure the dip of that virtual plane at the horizontal and it is the Dip.
You can also just hold out a book or clipboard in front of you and align it with the plane and you or someone else can measure the strike and dip of the surface as normal.
It won’t work for EVERY defect you can see, as there has to be a point on the plane of that defect where you can physically stand, and that isn’t always available (joints dipping into a slope for example). Or where you only have a single vantage point to observe from.
It does work for most though, and is highly accurate.
7:55 you can substitute water for a simple plumb bob or just throw sand or soil there, works just as water and reusable too
Going to Bartell Field Camp in a few days, thanks for the refresher my friend. Now let's hope I get that Azimuth Brunton instead of the Quadrant =)
0:30 exactly same scene from our field trip nights ....compiling the field report for the day 😀😀😀love field days .... 😀
Oh my god thank you. I Started taking a structural geology class this semester and the professor just told us to use the “right hand rule” and put the “red in the shed” but never told us what those meant.
I'm watching this again several months or maybe even a year or so after I gave it a thumbs down the first time, for some reason. Either I've gotten smarter, or stupider, and I'm taking the thumbs down back, but time will tell if I give it a thumbs up. I have to say that, after watching more videos on structural geology, this one ain't as bad as I thought. Either that, or I'm not so cranky today. Having now watched it completely to the end, it occurs to me that I don't actually know all that much about what actually I might be measuring strike and dip on--a fault, fracture, or whatever. So I still have plenty to learn. Many thanks.
...😆
wow, have the exact same Silva compass; need to find that bubble level and check out your other vids--thanking ya! red in the shed--awesome!!
#1:51 at this moment 1:51 i found that E in the W place,!! i search for some compass and all correct as i know unless this compass " Brunton Compass", i know the angel is correct which is 90 D, but i can't understand why the place is not match as i know "West on the left hand
& East on the right hand" i hope that you know what i mean, thanks.
Brunton compasses switch the east and west so you can take a direct strike measurement without turning the orienteering dial like on a Sylva. Once you use one, you'll understand how much easier it is.
@@CVshorey thanks a lot for that, so i search a lot for the reason but i didn't get a complete useful information about that, any way it doesn't matter, i just want to know if i use the Brunton compass *with it's revers* and i get 10 Degree NE, so does it be already 10 D or 350 D?
I have a compass ,couldn't you just see in which direction the ,say, quarts vein was running and then place a spirit level which has a degree angle dial on them giving you the degree of angle of the vein is that the same thing or not .
In that case, you're measuring a lineation with plunge and trend, a.k.a. dip and dip direction. Strike and dip is for planar features.
U teach well u r the best one upload more videos 😜
¿Cómo se llama el programa usado en el minuto 3:45?
Es aqui: app.visiblegeology.com/apparentDip.html
amazing video.
THANKS He is familiar with all the information
What’s the question you always ask your students when taking strike and dip
14:25 "What are they measuring? What are you measuring strike and dip on?"
thanks dear
Thank you for that intro 🤣 did you make that?
So why not just download an level app for your phone. And a compass app too.
dont tell missouri school of mines i watched this video
Pourrais je avoir des tutoriels en français xtp
Unfortunately I don't speak French, but you could use Google translator. It is getting a little bit better.
Best Video
Nice