- [Narrator] This is the last tutorial in this 10 part series on the description and interpretation of sand stones. This is about what you're going to do before you leave the core facility. And, now, this core facility could be in a different country and you may never get a chance to go back there again. Could be that it happens to be close to you but the core was very logistically difficult to see maybe because of permitting issues. In any case, before you leave, you wanna make sure you have all the information you need. Okay, so one of the things I do is, after I've described the core, I'm gonna go through one more time and I'm gonna make sure I have checked every contact. Okay, is the contact sharp? Is it gradational? Is it regular? Is it irregular? You wanna make sure every contact on your core description is marked. After that, what I'm gonna do is I'm gonna go through and take pictures of features that are interesting, like, for example, these trace fossils here. Let's assume I don't know what they are. Now if I don't know what they are, someone else probably does. Someone take a picture of that, okay. Even on my description, I will draw a little camera symbol just so I know I need to take that picture before I leave. Okay? Then, some pictures are good because you wanna just understand those features better. Other pictures are good because you wanna send a message. For example, on this particular core, there's a very clear break, right there. Maybe your correlation depends on a sequence stratigraphic model. And you're trying to push for a forced regression interpretation. In your model, this field for this particular interval is the falling states system stripe. Well that thing is important so maybe you wanna take a picture of that. Bottom line is you don't wanna leave here until you've photo documented everything you need. A handy thing to have at the UOGS, they have these step ladders right there. If you don't have that, you could always use a chair. Just don't use one of those chairs because you're gonna fall and hurt yourself. But, what I will do is, before I actually leave, I get on one of these and, what I'm gonna do is, I am gonna take some overview pictures. So, here, I will take, if you've got an iPhone, or if you've got a panoramic feature in your camera, I will take an overview photo because that, with an overview photo you can see that this is a very nice coarsening up for it's package. Okay, no ones gonna argue that the package coarsens up until about that point right there. Okay. So, if you are trying to convince management or your colleagues that this package is, happens to be a para sequence, well, this panoramic photos gonna come in pretty handy. Okay. So do, you wanna photo document as many things as possible. You wanna recheck all your contacts. You wanna make sure you have all the crazed fossil information you wanted. Sometimes when I'm all done and I still have time left, and I've got Internet access, what I'll do is if I see features that I don't understand, for example, this feature right here, that looks thoroughly interesting, is that because of water escape? Is it because of burrowing? Is it a combination? Well, that would be a good one to take a picture of. Same thing here. Is that a water escape feature? Is that a fuel gignia? A burrow of an organism that's trying to escape. So, again, you wanna document these things because, sometimes, you may be iffy and you wanna consult a company expert or a consultant, or a friend, who knows more about this stuff than you do. But, do not leave the core facility until every contact is marked, until you have grain size trace fossil information for every interval, until you've photo documented every thing in detail. And, then, finally, when you're done, then you can go ahead and close all those lids and leave the core lab in the same condition that you found it.