| 00:02 | Thank you. Okay we're gonna talk texture and composition. Part of this |
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| 00:08 | just definitions and then we'll get into control particularly with respect to composition. |
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| 00:16 | we talked about texture grain size sorting this, I will focus on grain |
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| 00:22 | sorting composition. Typically framework, matrix and cement. I will be |
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| 00:33 | the five size criterion law With -1545 cells. There are millimeter equipment as |
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| 00:45 | . You'll see both in the slides I will be using. Engineer tend |
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| 00:53 | millimeter scale metric scale con geologists tend use the device scale. Uh |
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| 01:00 | Subdividing sandstone from very for sand look coarse to very fine. And so |
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| 01:08 | will be Using that basically 2 to Michaels. Right. Uh There's a |
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| 01:18 | this just started very beginning size is maybe the primary texture of variable that |
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| 01:26 | measure a different. Okay uh for measure grab different than you did the |
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| 01:36 | major saying mainly by sitting looking at intermediate time. Unless we don't we |
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| 01:43 | if we measure by sending to and we translate settling velocity into a |
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| 01:52 | So much of the information that you in the letters is not actually physical |
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| 02:01 | but hydraulic for bubble socks because much the sand analysis now are being done |
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| 02:07 | hydraulic by seven tubes. Hydraulic focus is hydrological e better measure of how |
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| 02:19 | sand grain papis. Physical science is better measure of. And petro physical |
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| 02:28 | have fluid flows through the system. if you want to know about porosity |
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| 02:33 | permeability. You really are less interested hydraulic government than actual physical size. |
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| 02:40 | so keep in mind that as you the truth. Okay. The other |
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| 02:44 | I mentioned this earlier that if you at the blood components various streams you |
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| 02:52 | the intends to peek down in This is in the cells to force |
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| 02:59 | . But as actually measured as follow Sand, it will see Hydraulic |
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| 03:09 | And the reason for that is that , these are really fucks fucking the |
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| 03:18 | because of the organic content and the . The clay does not transport is |
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| 03:26 | play flights. They flock. Later as an actor. And so |
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| 03:30 | actually moving as Uh huh. The signs and Children. Uh We'll see |
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| 03:41 | out yeah mud ripples. A lot our interpretation of the hydraulic significance and |
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| 03:49 | of environment and mud is wrong. tend to think of mud as being |
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| 03:54 | things really quiet, just settle down suspension. In fact a lot of |
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| 04:00 | is actually being a little bit so is making us to rethink our interpretation |
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| 04:08 | . Okay, now texture is influenced area transport, deposition and. Uh |
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| 04:18 | influences physical problems. Okay. Uh . If we and one of the |
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| 04:25 | describing texture in order to interpret the of these variables is textural mature uh |
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| 04:36 | two sub mature, both poorly sorted . Your absence quick mature. No |
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| 04:46 | but that are sorted. Yeah. mature, mature but around it. |
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| 04:55 | this is graphically proposed by all. And the interpretation is that entry many |
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| 05:05 | transport. We see first of all wailing economy then the sorting and around |
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| 05:16 | until finally the ultimate example of extreme energy is simple chip. I'll come |
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| 05:27 | to that. But this descriptions Are used the interpretation maybe a little |
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| 05:41 | . Let's look at how we would here. We have a high percent |
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| 05:48 | . So this would be immature In fact we've got 20% player. |
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| 05:55 | . Which is in itself. I'll come back to Yeah. Anger |
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| 06:07 | know here and you're well short. of these are relatively well 34 to |
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| 06:18 | front. So this is so as descriptive textural maturity is a very useful |
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| 06:28 | to the problem is there are a of exceptions. So the idea of |
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| 06:37 | kind of continuum of increasing input energy suspect. Yeah. I'll describe a |
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| 06:50 | of examples of the wind up Let's look at just one example here |
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| 06:55 | have to Sam's both are relatively Sorry. Okay, Once all Ports |
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| 07:11 | the other is different material handle it now. Based on that you shouldn't |
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| 07:23 | rounded. Yeah. And Anger were my next because those are two very |
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| 07:33 | mm settings and that's what's referred to a texturally burning and it just there's |
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| 07:43 | miss disconnect between the textural maturity The set worse than that. one |
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| 07:55 | things I think you realize surrounding depends parts as well as distance aggression. |
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| 08:03 | castle. So hey, this is rock. Uh huh. Yeah, |
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| 08:10 | the opposite. So as we look this, what do you think is |
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| 08:17 | here that's causing this? My model version of hit. Well, there's |
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| 08:32 | we don't know what the source Right. Because it should be sourced |
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| 08:36 | a more mature provenance. Exactly. of sorts. This is a |
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| 08:43 | Sand. Okay. How far did show rifle transport? Thanks. How |
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| 08:50 | does this go? All right. one of the things is that that |
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| 08:57 | idea of 7 30 implies accounts Okay, now there are other |
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| 09:11 | Yeah. Okay. Hey said that is important. The crossing coming |
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| 09:23 | Do we use policy and hydraulic conductivity Kane here again, I'm sure for |
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| 09:36 | these functions shorting around this to not socks from abilities function of results. |
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| 09:45 | ferocity it's just a matter of shape for me building puts a big recordings |
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| 09:52 | clearly these are important factors then I'm going to really get into. But |
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| 10:01 | texture of your material and this is going to be influencing brilliant. Which |
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| 10:07 | moves through and is stored in the . You're sentimental growth instead. I'm |
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| 10:15 | to focus more on composition. Tectonic setting hands available climate and |
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| 10:26 | Uh huh The uh huh. And biological evolution. That's important. |
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| 10:33 | there are different sources depending on biological . Transportation the definition environment that's a |
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| 10:46 | of changing rain signs with respected animal chemical durability. Genetic trends are self |
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| 10:55 | and all these together impact the hydraulic . Okay so what are the components |
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| 11:05 | composition? Framework brains, Matrix and framework grains are basically going to be |
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| 11:13 | grains that were transported assaulted typically sand course. Still uh we kind of |
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| 11:24 | play because we're gonna play down this . So matrix is anything finer than |
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| 11:33 | ills. It's not a summit which filling in official four spaces. It |
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| 11:42 | be the tribal that is to say play that's transported For the Crystal |
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| 11:49 | Okay so we look here we reports planes in California city. These two |
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| 11:59 | here. Yeah That's a little harder . That's 20 playmate. Go back |
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| 12:07 | your texture maturity. That should be immature. Yeah the problem is is |
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| 12:15 | all Detroit because if any of us crystallized then protection maturity doesn't work Because |
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| 12:25 | 5% play is the tribal police not . You might have types of |
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| 12:32 | In fact the tribal way he is to as proto makers replaces it. |
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| 12:45 | that is from re crystallized jury with nations interstitial guy genetic claim and pseudo |
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| 13:03 | . It's actually the formed rock Not that example following. I am |
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| 13:12 | to push a lot of terminology with distinctions are really pretty used because it |
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| 13:21 | here that the problem for just a of transportation. These are the result |
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| 13:28 | vengeance pseudo matrix is due to compaction meat. Yeah, that's right. |
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| 13:40 | the matrix is from re crystallization or pre existing family and heavy clay is |
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| 13:52 | precipitation of die genetically. Within the these are very different types of the |
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| 14:01 | . Uh huh. Or the minerals foreseen church or stable minerals mainly |
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| 14:12 | bars and plays are these are for . There's some other finegar smaller minerals |
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| 14:20 | we don't deal with initially, particularly but are important for other reasons because |
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| 14:27 | provenance. Or in terms of uh we all have rock. Right? |
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| 14:36 | let me fight. Uh I saw ships church. What are these all |
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| 14:44 | in common. They're both igneous and and sedimentary that there's something that each |
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| 14:54 | these rocks has account great like What do you mean? Grand defined |
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| 15:06 | , actually true as as I say the crystals are visible but that's not |
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| 15:11 | at all. Okay, so what's converse of that? Invisible. |
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| 15:21 | well not easily. There may be phonetic uh very fine break. All |
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| 15:27 | these consist of very fun, great . Mm really pretty obvious. It's |
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| 15:34 | to be saying silence can be I , so what we're seeing is composing |
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| 15:43 | brains. You can make pretty much it's a rock crime very fine. |
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| 15:50 | . And then we have our Yeah. And you can look at |
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| 15:56 | . There's a lot of ways of about platform sand versus mud. |
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| 16:08 | I may be interested in sandstone, , this is ignoring the carbonated. |
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| 16:17 | the Canadian products dispose before time I biased. This justification by laser is |
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| 16:31 | , Sex and 50 Buddy SAm. , um, so the time they |
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| 16:41 | focus on those sediments and sedimentary rocks are 75% or more safe. |
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| 16:49 | When we do that, we can them based on earth constituents from and |
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| 16:58 | we use a Q. F. . Doctor mhm Reports falls the courts |
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| 17:05 | or may not in the church let president man man so far, may |
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| 17:14 | may not been counted here. There's ways of point and there's also 50 |
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| 17:23 | different classification security documents. So the thing to advise you is that whatever |
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| 17:29 | reading an article and they're talking about classification, make sure they say and |
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| 17:38 | understand which one to use for the of my because I'm going to use |
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| 17:45 | . Yeah. So yeah, I laser chart. Yeah. We're not |
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| 17:54 | at. So that's right. We're looking at, we're classifying this on |
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| 18:01 | basis of the same still presented. , filter. It's play. |
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| 18:11 | The relative percent of silk versace yep. Okay. Okay, so |
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| 18:22 | just be using that classification and here is again. And the one thing |
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| 18:28 | would know it, it doesn't matter one sense. It's just as long |
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| 18:36 | you know what I'm saying. And know what you're saying, We're |
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| 18:41 | Uh, so this is what I and you know, except what I'm |
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| 18:48 | . Well now we look at the parts of this particular diagram and it |
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| 18:54 | out the following itself, owners tend be product of the state. Rock |
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| 19:08 | on mechanically and chemically is the form And you blew up this journal or |
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| 19:21 | , you gave him to something that chemically mechanically. See mostly. And |
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| 19:27 | part of this is a trend towards only textural majority of the composition |
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| 19:32 | You're kidding. Okay, so we'll as we look at sand and sand |
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| 19:41 | of different place, part of where fall on the uml diagram is an |
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| 19:51 | of their chemical texture to it. , Let's look at Ware Nights, |
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| 20:01 | these are Over 95 courts things. so they have certain I use |
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| 20:11 | Uh huh. They see this courts were usually rounded, didn't have so |
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| 20:20 | going to be mature too soon. about 50% of the sand stones in |
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| 20:30 | proto resort. I mean, I that is are these questions that tells |
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| 20:38 | something about the parathyroid was different and necessary consensus in terms of those variables |
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| 20:49 | affect composition. We can talk about later perhaps, but for right now |
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| 20:57 | need just recognize that the composition can with time. one of the reasons |
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| 21:04 | composition can vary influential deposits is or non marine deposits is that the development |
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| 21:14 | land plants didn't come in until the and grasses, not until uh late |
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| 21:21 | are really similar. So vegetation is the time in vegetation it is so |
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| 21:30 | has a major impact on composition Okay, uh, these are the |
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| 21:36 | source of vaccine. Okay, so is a super mature courts air knife |
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| 21:46 | said. Yeah, here is a erIN. Now, what are the |
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| 21:53 | that a little hard to see? . Oh, but see if I |
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| 22:01 | do this feeling. It turns out these kind of angular contacts. That's |
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| 22:12 | of course the menu there's kind of druze the little line right about here |
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| 22:18 | this basically between the fortune framework series they optically continuous. So it's really |
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| 22:30 | to tell where framework is in the because they are now here This is |
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| 22:41 | two or German because we defined on basis of premium restraints for us. |
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| 22:48 | very easy to see the framework is of the to Court Caroline's one Courts |
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| 22:56 | , one health activity which is the . It comes from the dissolution of |
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| 23:05 | and calcium rich box in weather and re precipitation ground workers and its hugely |
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| 23:13 | early things that doctors. Yeah, is the this is the and the |
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| 23:23 | this is bad is once and this awful sanitation is part of that against |
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| 23:31 | the courts and it comes all incredible strides once the cal fight some |
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| 23:38 | you can dissolve place, you can secondary false. This is good. |
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| 23:46 | , now You got about 25% growth is going to be a little |
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| 23:52 | Well yeah, we use the term coast allergies tell Sarah knight fell serenade |
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| 24:02 | dramatically probably better. I'll use our because shorter. But those rocks are |
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| 24:09 | rich. Yeah, they're usually anger annual commodity, therefore future. Whereas |
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| 24:18 | courts in tonight's remaining mature to Okay now, what does this tell |
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| 24:27 | ? First of all the large amount cell bars, it must have been |
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| 24:30 | trained sells for red rocks in the . It was, it had to |
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| 24:38 | what, what would the wrong b source rock for this? Our kids |
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| 24:51 | me an experience what kind of Ghabra like granite, highly like it's got |
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| 25:06 | most that again, could be uh basically it's going to be that that |
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| 25:16 | in the edge of the, the fan aerated rocks of course green rocks |
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| 25:24 | felt more rich. It was a brought it might be nice. |
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| 25:31 | No. Since then or you have start with this source, we need |
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| 25:42 | every point for humankind. Finally, , very kind of frustrates them. |
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| 25:50 | the area. Climate being useful to our crops. Yeah, exactly. |
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| 26:05 | . Right. So mechanical weathering was on in their climate can't just big |
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| 26:12 | so Okay, but in healing chemical . That's part of so much. |
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| 26:20 | , you mean with I believe now sold at high relief has more of |
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| 26:26 | impact or total sentiment but why it impact fell. Spars goes back to |
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| 26:34 | diagram, I kind of passed five showed the thickness of the weathering zone |
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| 26:42 | deadlock inhuman regions in high relief humid , very comma to have erosion cutting |
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| 26:53 | the soils, exposing that. And that erosion is faster than the soil |
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| 26:59 | been this form mhm. Which is in temperate regions then a lot if |
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| 27:07 | home all of the sudden drive or . Yes, we can. |
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| 27:16 | Yeah. Now the maronites, we ones based on the composition of the |
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| 27:26 | . Health uses ordered by your Mm. To be honest, I |
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| 27:34 | use this very much. It's available here. Well, your point counting |
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| 27:39 | is important in terms of die genesis remain once I use cannot guarantee I |
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| 27:50 | we've got nearly cal Karius sand, is actually this general mm all carry |
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| 28:01 | it because I worked in volcanic so erin either. I merely feel like |
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| 28:12 | more typical. But in reality you have any accepted. You need to |
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| 28:21 | , let's think about the smith Oh wow. Not much quote. |
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| 28:32 | is why it's in the area. my spells great. In fact, |
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| 28:36 | is what we might call it. , working. You find that a |
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| 28:39 | more uh grand watching. It's very , ugly dirty rock. This can't |
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| 28:46 | much about the field. Nothing. it looks like all of this is |
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| 28:54 | . But it's not. If you your left eye, open your right |
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| 28:58 | a little more and turn sideways. see that those are rocks. |
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| 29:11 | Good morning. Mhm. And so is a grungy wrong. And that's |
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| 29:21 | what in fact In the 1800s are shelter for the color? Uh |
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| 29:34 | Where people in the middle part of 19th century, we're trying to get |
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| 29:38 | of this term. But they were it's still here today, but it |
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| 29:45 | only be used mainly as field terms to senator hygienic. Dirty Sanchez. |
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| 29:53 | right. And it's typically associated with ship. It is a classical component |
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| 30:02 | what is another old term flesh, is basically alternating sand and mud. |
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| 30:10 | is typically in a deep green It's usually associated with tectonic impulses on |
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| 30:17 | tectonic lee active mark. Okay. the lab you can be more specific |
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| 30:25 | the matrix health positions, but it only be used as a few |
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| 30:32 | Otherwise, it's militarily Yeah. yeah, the Samson must sounds here |
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| 30:47 | over 25 the previous definition. How years later because later this part yet |
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| 31:01 | masturbation. But I want to use because it emphasizes the idea of a |
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| 31:09 | . Uh huh. Well, a dimensional model for four variants. |
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| 31:15 | where you're adding the percent month or this case percent matrix, which is |
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| 31:20 | . Yeah. So how do we these mud stones remote sonar, |
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| 31:29 | delicious. It all sorts of words we use them if not interchangeably with |
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| 31:35 | similar level of Okay, so, one thing I would just point out |
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| 31:44 | kale is not a very big, will not root it out the oil |
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| 31:51 | , it's what mud rocks are But the problem is shale is defined |
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| 31:57 | a fissile mud law, fissile meaning it breaks along parallel during you take |
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| 32:05 | quarter of mud raw, it doesn't along those footings. Are those Those |
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| 32:14 | facility is a weathering phenomena is something see in the feet. So |
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| 32:20 | there are shades again, but you ought to use the mud rock |
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| 32:27 | which is one of the reasons why terminology here is from exile because they're |
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| 32:35 | to get their people in there. didn't get away from this shale and |
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| 32:43 | into understanding what Now again, I 50% right here, 75. Getting |
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| 32:52 | with this. Okay, now, you do that, we had placed |
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| 32:58 | Hudson silks. Those are the most types of bad walk for months. |
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| 33:06 | basically sets down Hudson placed uh Sandy some money, sandstone. That's a |
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| 33:17 | setting. I'm looking, you may the misfortune of dealing with it in |
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| 33:22 | life, but not in mine. , okay, okay, now, |
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| 33:27 | we get into looking at this, of the grains are sports health. |
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| 33:33 | played organ. So we're looking composition look for what's right? So |
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| 33:42 | it's from laser. You don't need the Valerie, but think about the |
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| 33:50 | and so you can have how parents . Yes. Now, in addition |
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| 33:58 | composition, you can think of the of those propagated. So we don't |
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| 34:17 | a biologically, but we do okay , before him to set. So |
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| 34:31 | useful to know, but you're it takes a lot of work to |
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| 34:35 | . Now components. We look at non tribal components Felicity. You can |
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| 34:44 | at him too. But the important here is that these components, along |
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| 34:53 | the debt Ronald are going to very on the mud rock you're looking at |
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| 35:01 | also will impact the physical problems. . Uh, if you did an |
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| 35:10 | diffraction, which is not an uncommon of classifying mud, y the |
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| 35:19 | If you look at the field based 10 section analysis from the same |
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| 35:26 | huge shortage Average EX ray is not as useful as the 10 secs. |
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| 35:39 | here are some compositional variations on Uh, we're going there and |
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| 35:48 | Yes, very muslim name. A of variability. Okay. And if |
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| 35:55 | look at the variation of just a gas reserves turns out that some of |
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| 36:01 | variability. Radio Larry 1st Land and a couple of minutes dot coms. |
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| 36:13 | the biologically derived components or changed. turns out that jones in Green Eagle |
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| 36:28 | that. Mhm. This is all yet little things on four years. |
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| 36:39 | reason. So once you start looking the composition and looking at the |
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| 36:48 | you can begin to explain why there's physical having some compositional variations. |
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| 36:56 | the last second last line there are . Classification hitting open introduced 1 |
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| 37:05 | Um there was a matter. Mhm disclaimer. Why definitely not so |
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| 37:15 | It's the other one. Uh I'm not sure I care. I |
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| 37:22 | it's easier for me to use later . Uh your company, you |
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| 37:30 | you may want to use Katie Milligan's , uh whatever works for you. |
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| 37:37 | what we, what is apparent is we look at composition as we look |
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| 37:47 | things on tectonics, climate transport, and I get it. They are |
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| 37:57 | important in terms of physical, not defining the yeah, deposition environment, |
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| 38:06 | defining your physical and the shale, the griddle versus the is almost |
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| 38:15 | almost exclusively function of those three Okay, that's what we're going to |
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| 38:21 | going to quit recording and um we'll next time. Now let me suggest |
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| 38:30 | trump. Yeah, I'm gonna post tonight for a |
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