Introduction to Logging Drill Core
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- čas přidán 11. 09. 2024
- A quick introduction to how diamond drill core is logged and the types of data collected. The video is part of my online course FieldCraft for Geologists. The full course is available here: geologyupskill...
Slightly more exciting than mud logging!
Agreed!
Thank you for this! We didn't have the chance to do OJT because of the pandemic. Watching this gives me an idea of what my future work may be.
Thanks. That is part of the reason I have been making this video series.
This is the best basic logging I have ever seen!
Thanks. Glad you found it useful!
Nice to see core logging from a different sort of drilling. I'm used to logging core for Geotechnical Ground Investigation rather than mineral exploration.
Thanks. I probably should make a video on geotechnical logging as well. Just need the right opportunity with someone who knows their stuff and is happy in front of the camera.
Very good video for young geologists, it describes everything clearly and simply. Thank you for this educative video
Thanks. I try to keep them succinct.
thank you for this nice and video that help me figure out what my future carreer will be as an exploration geologist which has always be a passion to me.
Great Ben. Passion makes work easy!
Thanks for a fantastic video, it’s a ‘must see’ for my students here at Camborne School of Mines.
Great! Most of my videos are aimed at preparing undergraduate students for the tasks they will encounter outside university. I can provide a group discount package for students at Camborne if you would like to give them access to the extended versions of all the videos.
Another quality video, Sam you're a movie star.
And all unscripted!
Hi chief, I'm very glad to be abonned to your geological programs. That's an important program for all geologists.
Thanks Diakaridia. I'm glad you find the information useful!
Are you Malian
@@idipped2521 Yes, of course I'm, sir.
Wonderfully informative video as always, my thanks and appreciation.
Thanks. Glad you found it useful.
Hi there! Great video.
I just noticed that the Geo collected the Beta angle in Kenometer setting the apical trace (lowest point of curvature) in the 0 degree mark, and collected the angle where the oriented-line hits the kenometer. Is also acceptable to set the 0 degree mark in the oriented-line, and then collect the Beta angle where the apical trace hits the Kenometer?
Either method will work. The absolute rule is to make sure everyone working on the core uses the same system and the people using the data know which method you are using.
@@GeologyUpSkill Great. Thank you for your prompt reply! Keep exploring.
Great presentation.
Thanks very much. Glad you found it useful.
good drilling mate thank for the information
Thanks for your video from Russia! Saint-Petersburg Mining university liked it!
That's the great thing about CZcams. When you teach something, people anywhere in the world can learn.
Hlo sir can we contact through watsap
Great video. How do you mark it if you lost continuity? For instance if some of the mineral (sand) washed out.
Conventions varybetween different companies, but normally, the orientation line on the bottom of the core is simply stopped at the break. If it can be continued (at lower confidence) a different colour or pattern of line may be used. Some good comments are here: www.orefind.com/blog/orefind_blog/2012/11/12/drill-core-orientation---an-inconvenient-truth-(part-3-of-3)
buenísimo(great, excellent video)
Hoping you can help me understand a part that i maybe missing is do you only send to the lab a samples of the strike areas of the core that you suspect is where the targeted mineral is located in the core. Normally as an investor i only see the sheets of the cores, concentrations of the target minerals and depth of strike
It is standard practice in most companies to assay the entire length of the drill hole. It may not be necessary where there is a very well understood barren unit (such as cover sediments), but in all other rocks, it helps to build trust in the final resource and sterilize any surrounding rocks for the infrastructure development.
Very interesting video! I would like to see what happens during a geotechnical investigation!
Yes, I really should do one on geotechnical logging.
Thank you for the informative video!
Do you have any recommendations on core cutting equipment for cutting geotechnical samples (UCS/PL) when working remotely on a drill rig? I wonder how many Geos are still dry cutting with angle grinders...
Petrol powered brick saws are a popular option for remote mobile sites.
Thank you for this educative video. Can kindly explain the aspect of mark up the core with respect to the driller orientation? I did not get the explanation in the video very well/ Thanks
The driller maks a line that represents the lowest edge of the core in each drill run. The geologist then tries to match up those marks from run to run. If they match well, you can be confident that the orientations are good and you can mark a line along the core that represents the bottom side of the core. Of course this only work for holes that are drilled at an angle. Vertical holes have no bottom side!
Nicely explained👍🏻
Is there a different approach when logging a Volcanogenic Massive Sulfide drillcore? Thank you.
The general system would be the same, but each company will have different tools to get the job done. VMS deposits may require special handling of the core because it can produce a lot of acid in contact with water, particularly if it is partially oxidised.
@@GeologyUpSkill thank you for answering my question. I am learning a lot from your videos👍🏻
Great info
Hope it helps you in your work.
Good presentation, but the pristine core here doesn't represent the broken and/or ground stuff that's often only partly recovered - i.e. the real world.
How do the drillers know the bottom of the hole? Do they use a special non-rotating core barrel?
Most of the core orientation tools mark the bottom of hole on the last piece of core before it is broken off from the bottom of hole. That gives some certainty about the position. If the core can be fitted back together, the orientation line can be drawn back up the hole until the fit is not possible.
Is this full video lecture on core logging? if its a fraction of the lecture and more details available on the course I would like to subscribe, Tnx
This is the full video. Videos that have a more extended version on GeologyUpskill.com will have a trailer at the end to indicate there is a more detailed version available.
Nice video
Thanks. Glad you enjoyed it!
Hey mate, great video...Im currently a drillers assistant working in Port Headland and looking to do a Bsc degree in geology with open university, do you think it would be a worthwhile course which would let me move in to a entry level geologist role in mining?
I don't have any experience with open university. Probably best to ask a few potential employer companies if they accept that degree as qualification. If so, go for it.
The video is very informative. Is there any job opportunities for geologists?
There are many jobs right now. The trick is getting to them.
can you please make a video on the reading of the gauge
Good idea. Next time I'm on a project with active diamond drilling :)
@@GeologyUpSkill ok good , i pray you get soon
👌👌
what's the name of that core cutting machine?
I think it's an old version of a Corewise saw. You can see some more about that in this video czcams.com/video/AUqxwovEBIs/video.html
@GeologyUpSkill thank you sir.
I m geologist from Pakistan sir how can i join your team
Alas, I usually work alone. It's one of the things I find most enjoyable about geological mapping work.
Looks like granite or granodiorite. A little bit of pinkish white with specks of dark minerals probably of mafic
Strictly speaking, most of it is tonalite, but granodiorite is a fair enough description!
thank you for this ,can you send me the procedure which you applied
I don't have the procedure manual for that company, but there are some great resources on-line. Here are a few to get you started.
canadamines.ca/basics-of-logging-core-samples-for-mineral-exploration/
rogermarjoribanks.info/diamond-drill-core-log-sheets/
rogermarjoribanks.info/category/diamond-drilling/
drill core, is this a new genre of music kids listen to?
It should be!
I attempted to eat 0.1m of core once, never again
Some core does look good enough to eat!