| 00:02 | Yeah, everything is fine. Wait. Sorry. I'm an |
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| 00:59 | I didn't realize I had my audio turn my headphones. I'm like, |
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| 01:02 | to him like, Wait, I hear it. He just anything |
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| 01:04 | But, um, when you uh, you said there was, |
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| 01:08 | , a layman's term definition for Paris set and I had something to do |
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| 01:12 | E. I think it's like finding sequence you gave, like, a |
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| 01:16 | like, um, one liner for it was. I was wondering if |
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| 01:19 | like. I'll stop your head. that? I wrote down the minute |
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| 01:23 | you said it so I could go and listen to it. But |
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| 01:26 | from they just said, just a shouting up with faces, Accession down |
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| 01:31 | setting surface. Yeah, yeah, , I think that was Yeah, |
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| 01:37 | think so. Nothing very magic about . Um, okay, I'm |
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| 01:45 | Right? Yeah, that's okay. right. Andrea recording. I'm assuming |
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| 01:56 | up. Maria. Yes. Everything is okay. Perfect. |
|
| 02:02 | so kind of finish up this lecture you can, uh, seems like |
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| 02:06 | one goes on forever, but there go anyway. Um, but this |
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| 02:10 | sort of the, you know, hardest of that sequence. Photographic |
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| 02:13 | So we'll finish this off. Let's how we're doing. Uh, then |
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| 02:18 | want to get methods. Excuse Yes. No recording. Would you |
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| 02:22 | give me access to record? Thank you. We owe this meeting |
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| 02:48 | being recorded. Thank you. Thank you. All right. |
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| 02:57 | uh, we're talking about the idea there is a Paris sequence, which |
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| 03:06 | this confusion usually expresses a up, course, in face succession about by |
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| 03:13 | surface. Of course, we've already the idea. That sequence could have |
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| 03:18 | and dozens of Paris sequences, all capped by flooding surfaces. But then |
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| 03:23 | about all these other sequence? Photographic ? The sequence founder Transgressive surface, |
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| 03:27 | maximum playing surface. So, of , if a parent sequences eroded by |
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| 03:33 | , then that Paris sequences not overland of services overland by sequence, |
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| 03:38 | Of course. You know, some sequences could be over like overland by |
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| 03:42 | sequence boundary on that would define the of a new Paris is set. |
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| 03:46 | would be the low stance systems of course. You know, retro |
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| 03:50 | . All set of Paris sequences each by flooding surfaces. But the turnaround |
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| 03:55 | retro gradation of procreation, which marked maximum flooding surface. So one of |
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| 04:00 | flooding services might coincide with the maximum surface that defines the band, which |
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| 04:05 | transgressive. Hiestand Systems tracked. now the other. The other idea |
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| 04:11 | systems tracks is that the terms in stand low stand falling Stage boy following |
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| 04:19 | of Wants What's falling? If I falling stage what's falling? Anybody see |
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| 04:29 | ? Yeah, right. If I hi, Stand what's standing high? |
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| 04:36 | , lets say low stand. Standing low. We just repeat or |
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| 04:39 | , right? So, you part of the trick of secret strata |
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| 04:44 | terminology is that hidden behind this idea systems tract is the idea that systems |
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| 04:51 | are related to an increment of other levels. Sea level status is high |
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| 04:56 | , Stan for sea level change, systems tax. Following stage on |
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| 05:03 | that let you a lot of a of difficulty of understanding in the literature |
|
| 05:09 | John Van Wagoner tried to address that 1995 introduction in his big book on |
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| 05:15 | sequence, photography tried to distinguish between rock paradigm versus sea level paradigm. |
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| 05:21 | . He certainly was adamant that he in favor of defining sequence sequences and |
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| 05:27 | tracks on the basis of their observable patterns without regard to whether they formed |
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| 05:34 | high fall load. So he felt systems trapped should be related to the |
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| 05:40 | position of the sentiments and secrets and patterns. This is where we got |
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| 05:44 | a debate about whether on History Valley is transgressive or most stand drama say |
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| 05:51 | say, as long as within the filled on laps based on geometry. |
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| 05:55 | call that low step. But then process of the tall just yeah, |
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| 05:59 | see, that was rising. That's , so that just seems confusing to |
|
| 06:04 | . I think John sort of lost argument. And in the end, |
|
| 06:07 | Mike Bloom left up, uh, s u I went to work in |
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| 06:12 | for about five years. Hey, of got there. And that was |
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| 06:17 | the period where they where they retired Van Wagner and then my turn around |
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| 06:23 | the remaining sort of traditional sequence, . Look, you got to clean |
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| 06:27 | this terminology because no one no one understand when you whether you're talking about |
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| 06:31 | rock paradigm with a paradigm fix And so that was why Jack and |
|
| 06:37 | came up with the accommodation succession Hey. Okay, so you have |
|
| 06:43 | seen this diagram? Eggs Ilyin Actually, I'm line. You've never |
|
| 06:47 | this diagram. But this is simply someone else's version of the traditional slug |
|
| 06:52 | that shows the various, uh, and systems tracked. Um, and |
|
| 06:59 | course, waken. Look at that in three dimensions. So here I |
|
| 07:05 | I've shown you this Block three e d Block Dog out for So you |
|
| 07:10 | , we could sort of think of as a series of movies. |
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| 07:13 | everyone's Internet is working well enough that could see the toggle here, So |
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| 07:17 | would be, you know, if look at the seat of occurred on |
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| 07:20 | lower left, uh, that's what landscape is inferred to look like during |
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| 07:25 | period of use. Static fall. the rivers were excavating. There's a |
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| 07:30 | of sort of great looking kind of patterns, some shelf edge delta, |
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| 07:35 | slope fans on. Then this big floor fan fed out of that in |
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| 07:41 | Canyon, where the river was deeply . Then we go into what we |
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| 07:46 | recovery. So the seat of the produced producing the sequence boundary and the |
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| 07:53 | stand systems tracked family. Some people call that the the early low |
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| 07:59 | Others would call that the falling Okay, let me go into the |
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| 08:03 | of time in which quite a bit time passes. But there's a slight |
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| 08:08 | slight you static rise of sea. not much change in sea levels, |
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| 08:12 | that that, if you will, the sea level stand. So that's |
|
| 08:15 | period of time following the rapid fall the river is kind of its |
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| 08:20 | Excavate on shut sediment out of the . Following that system kind of |
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| 08:26 | values begin to fill up and you a Siris of shelf edge deltas and |
|
| 08:31 | platforms that built out over the low stand fast falling stage fan you |
|
| 08:37 | now. You know, uh, things and correlate them in both of |
|
| 08:42 | assignments one and two. So hopefully I show you these diagrams you you'll |
|
| 08:47 | more comfortable looking at. Then we're for some reason they skip the |
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| 08:53 | so we transgress and and flood back this area. There is the point |
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| 08:58 | maximum marine shale. So that surface would be that that would be the |
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| 09:04 | systems tracked. In this case, only one Paris equals thick. We |
|
| 09:08 | toe to the maximum, uh, limit of Marine shale on then |
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| 09:13 | Then then the sentiment goes back to to an aggregation of procreation accommodation, |
|
| 09:19 | , depositing a delta, a middle fed by this Casey Mann River on |
|
| 09:26 | deepwater. Fans are not over lane destroying jails. Uh, that may |
|
| 09:31 | condensed sections. And what kind of system with this green stuff like to |
|
| 09:36 | any any guess what was that? part of the petroleum system with green |
|
| 09:45 | ? Correct. And what else, its contents section? Yeah. |
|
| 09:53 | so yes, exactly what would what the most and family because of |
|
| 10:01 | So now you've got a reservoir CEO and potentially about source rocks. |
|
| 10:06 | my friends, is a deep water Mexico play. You have source seal |
|
| 10:13 | , all deposited during these high stands low stance of single right. So |
|
| 10:18 | a strata graphic play? Yeah, there, You know, make a |
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| 10:22 | bit of structure trap for many and you got yourself a deep, |
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| 10:27 | water Go from Mexico. Oilfield You makes sense. Where would the |
|
| 10:34 | regressive surface be in these examples? it is. Right there. Laser |
|
| 10:40 | is on the maximum regressive limit, ? That separates the low stand shelf |
|
| 10:45 | from the retro gradation of Harrison So, uh, since you |
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| 10:59 | Right? So that is the the surface. Also the maximum progressive |
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| 11:10 | Okay, hold the line in the to see, just so you understand |
|
| 11:16 | , uh then the maxims flooding surfaces above it right there. That |
|
| 11:26 | Okay. And you could take that the way into the food around if |
|
| 11:31 | want. All the way there. , then we've got the, |
|
| 11:39 | can't forget about the sequence boundary. this case, there's a sequence |
|
| 11:42 | I'm sorry. Supposed to read? the color? Yeah, there's a |
|
| 11:52 | boundary. Okay. And then there the l s T affairs tst, |
|
| 12:08 | there's he just, you know, you could separate the fan of the |
|
| 12:16 | surfaces. Call that the falling stage obstruct if you wanted to. That |
|
| 12:24 | sense. Okay? I am. we go from from Just erase |
|
| 12:34 | Yes. And then we go from from this high stand into the next |
|
| 12:40 | . Repeat. So now we put submarine fan deposits on top of the |
|
| 12:47 | seal because convinced section possible social setting another reservoir sealed here. Right. |
|
| 12:55 | that's how we could get a cycling stack of multiple pay zones with |
|
| 12:59 | seal, reservoir and in the deep , particularly that could be condensed |
|
| 13:04 | You may get some source rocks in as well. On that, of |
|
| 13:10 | , defines what are sometimes virtuous. type one sequences, a type one |
|
| 13:21 | simply means sequence in which yeah, which the shelf edge is exposed |
|
| 13:28 | We get these nice sized validates because the exposure off that shelf slope |
|
| 13:34 | What point does that expose? If a next point a Knick point. |
|
| 13:45 | . Correct. The deposition fan occurs what point? Point the chokepoint. |
|
| 13:52 | good. All right, You guys do well tomorrow. All right. |
|
| 13:59 | right. So this is just some to talk about the low stance systems |
|
| 14:03 | Onda things that it may include. and I'm not gonna go through all |
|
| 14:10 | . I think it just sort of a lot of information, Life |
|
| 14:13 | So you might want to just get those those, uh, those criteria |
|
| 14:18 | your own rather than just talking through . One of the things that you |
|
| 14:26 | not find a bandwagon book is any the fallen stage or forced aggressive |
|
| 14:31 | Try excellent of Never like that very . Even though Neil A. Bro |
|
| 14:38 | degradation in their accommodation succession succession they refused to labor that the farmer |
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| 14:44 | stage systems tracked. I think they it the Lip I stand. I |
|
| 14:49 | like that because to me, the stand means what if I say I'm |
|
| 14:54 | ? What does that mean? yeah, And during the falling |
|
| 15:02 | shoreline is moving as aggressively as Denver. So why would you call |
|
| 15:07 | Lake Hiestand referring Thio said, Mr when Saddam was falling, it's maximum |
|
| 15:14 | e think it just gets confusing for . So you know, using the |
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| 15:20 | Hiestand and Low stand to describe sediments when shorelines and moving rapidly makes no |
|
| 15:26 | to me So So That's partly why Post Mintier God, another's decided Thio |
|
| 15:34 | numeral Another's decided to name another systems following stage or forced progressive systems |
|
| 15:42 | And again, I reviewed some of early on when we talked about base |
|
| 15:47 | changes. So think you're sort of army familiar with this concept, and |
|
| 15:52 | you hear the word normal regression. you know, if you want to |
|
| 15:57 | a note, you know, you almost cross the word normal out. |
|
| 16:00 | say, a regression that controlled by seven supplies. So a P and |
|
| 16:06 | a all be considered normal regressions. different from a forced aggression where the |
|
| 16:12 | is forced seaward because of a drop semen, Right? If you drop |
|
| 16:18 | level, Charlotte has no choice but succeed. May may not have sentiment |
|
| 16:23 | with it, and you get a area nondiscretionary forced aggressions. Thing is |
|
| 16:27 | it is appreciated because it's showing that occurring during the step of seeing |
|
| 16:32 | But you could just get erosion into underlying unit with with no settlement being |
|
| 16:37 | . Okay, of course, that produces a very distinct downward stepping or |
|
| 16:43 | shoreline or what we call a negative trajectory fall in which the way connect |
|
| 16:52 | points way have a line that drops towards the basin. There is, |
|
| 16:58 | this case, we have a line always rising a bit. So this |
|
| 17:02 | classic AP. Uh, there is end of pipe on that goes into |
|
| 17:09 | deep right, of course, that there, Marx Basin with shifting |
|
| 17:14 | This units on lap in that previous in this basin with shifting on lap |
|
| 17:19 | basically shifted on lap on, and basically shifted in shallower faces over deeper |
|
| 17:26 | those of criteria used to define a better. So we would argue that |
|
| 17:31 | a sequence boundary, even if there a widespread erosion. Now, in |
|
| 17:36 | , on this diagram, right, drop of sea level exposes a Knick |
|
| 17:42 | . So again, that might initiate by rivers at that point. So |
|
| 17:46 | could even get a scenario sequence pandered being formed during that fourth progression. |
|
| 17:54 | of course, that's sort of illustrated this little, uh, post material |
|
| 17:59 | where so here's the forced aggression, he shows that Unit nine is |
|
| 18:05 | Step with respect to 678 So six down step with respect. 857 is |
|
| 18:13 | step with respect to six and eight down. Step with respect. Seven |
|
| 18:17 | so on so forth. So there's the degradation. But it does point |
|
| 18:21 | , is some of the record of degradation is missing because it's all rolled |
|
| 18:25 | on. So what you see is slightly negative trajectory of the underlying Chism's |
|
| 18:32 | can be a little bit difficult to observe in reality. So so this |
|
| 18:37 | with decorations stack isn't always easy to farm. Sometimes you'll get a regressive |
|
| 18:43 | of marine erosion at the base of first down step in shoreline, where |
|
| 18:48 | area that's previously quiet suddenly feels the the storm or fair on the waves |
|
| 18:53 | Rosa waving supermodel on Can Sue propose short a short face on relatively distant |
|
| 19:01 | . But those can be fairly features toe, identify on, |
|
| 19:07 | well. Henry calls it as an , low stand systems track. And |
|
| 19:11 | , when the system begins to go for P back to A. |
|
| 19:15 | calls that the late low stance systems so he sort of used for early |
|
| 19:19 | late to distinguish the falling stage from I would actually call the low stance |
|
| 19:25 | . So if you don't like a Oh, stand across it out. |
|
| 19:28 | calling phone school. They all mean same. Do it. Okay. |
|
| 19:33 | could apologize for the terminology. I make it. Okay? It's my |
|
| 19:38 | to explain as best I can. we talked about the idea that you |
|
| 19:41 | get back stepping development, transgressive systems . So here we have to Paris |
|
| 19:48 | . There is a maximum lamma living shale. So that would be the |
|
| 19:52 | of that. Marine shale would define max flood surface, drawing red. |
|
| 19:57 | should drop. Prove it. I wanna go change my 10 color. |
|
| 20:02 | think you get We saw an example a nice language step in retro gradation |
|
| 20:08 | Paris consent. Uh, this would sort of a high settlement supply retro |
|
| 20:13 | where you still get regressions in between overall, uh, rise. More |
|
| 20:19 | , you'll just get a transgressive surface illusion, uh, produced. |
|
| 20:26 | And and then one of the things I think James who commented on is |
|
| 20:31 | idea that you know many Vanity Phil's transgressive Phil Van Wagner would say All |
|
| 20:39 | Phil Arlo stand because they represent the lapping faces. That overall sequence |
|
| 20:46 | he says on pure geometry. Anything on lapping its size surface by |
|
| 20:52 | no staff. But then the people look at the face. You |
|
| 20:55 | Wait a minute. They find It's festering, top of fluid with |
|
| 21:00 | . So I put the flooding surface on top of the flu. |
|
| 21:03 | I would call the festering part. , beginning of transgressive systems, travels |
|
| 21:10 | wagon saying, I'm only going to the systems tracked. What's the Valley |
|
| 21:14 | filled. Transgression is now above the film. So on. I think |
|
| 21:22 | probably lost that that argument. But is some controversy in the literature about |
|
| 21:27 | the beginning of the transgressive systems tracked the end of the day. |
|
| 21:34 | on. Of course, the Hiestand tract is the is the next big |
|
| 21:40 | succession, and you'll come to get cadets sections so that these air these |
|
| 21:46 | kind of dark green unit showing these Cadet Section's report for a variety of |
|
| 21:52 | . They tend to be fossil rich they're really good places to Dubai |
|
| 21:56 | They also also because they tend to areas of low, classic supply. |
|
| 22:01 | have a propensity source rocks because they're organic rich Shales. They tend to |
|
| 22:06 | very impermeable and they form great ceiling so they represent critical parts of petroleum |
|
| 22:15 | . Of course, today the source is the today The source rock is |
|
| 22:27 | deep, deep water. She so source rock is the anybody Type it |
|
| 22:37 | chat if you want to. Relatives work today source rocks on service, |
|
| 22:45 | rocks anymore. They are want they're reservoir for exactly right, You |
|
| 22:50 | , now source Rock is that's not the unconventional, right? So sequence |
|
| 22:55 | . Even if you're taking a course conventional sequence photography, as long as |
|
| 22:59 | paying attention, you realize I'm still you the information that helps you predict |
|
| 23:03 | those source rolled up into those are the sore push. Rock is now |
|
| 23:06 | new unconventional reservoir. Okay, now not maybe gonna you know, in |
|
| 23:12 | course from maybe not gonna focus as on details off of how you predict |
|
| 23:20 | distribution strata, Graphic complexity of condensed , but you have to get into |
|
| 23:26 | through playing dimension. Having said um, let me make another couple |
|
| 23:35 | comments because I do have a so a unconventional slide coming up. So |
|
| 23:44 | kind of interesting, because in the material Alan view this diagram. You |
|
| 23:48 | , this is the high stand, ? You have a drop of sea |
|
| 23:53 | . The transgression at the end. still got a lot of high stand |
|
| 23:57 | , right? So there's your high , you know? Then we drop |
|
| 24:04 | level, right? In some people's , a lot of high stag gets |
|
| 24:12 | , so there is sort of a in view. Some of us feel |
|
| 24:17 | there is a a preservation of biased preservation of low stands and basic distal |
|
| 24:24 | . Depending on the basin, type stands have a higher chance of being |
|
| 24:28 | . Eroded during the fall on that be very dependent on the substance. |
|
| 24:35 | and accommodation of the base. So condensed. The condensed sections typically |
|
| 24:43 | in the more distant parts of the . Eso, typically there seaward of |
|
| 24:48 | of the sandy, your parts of , tracks and deep waters a bit |
|
| 24:52 | exception. Importantly, a lot of could be recorded by thin units. |
|
| 24:59 | creates a host of problems because if you do something for bias. Bio |
|
| 25:04 | Afeyan Convince section for sampling every every . Er, you might actually miss |
|
| 25:09 | bars owns, so it's not uncommon are strictly say, Oh, that |
|
| 25:12 | a big There's a big on conformity because we missed in the bar |
|
| 25:16 | you say, Well, how did sample every foot or every 10 ft |
|
| 25:20 | you sample across the convention songs across condensed section, You may have missed |
|
| 25:25 | bisons. Thanks In that, sanctions be places where you get a lot |
|
| 25:30 | organic material being deposited. Organic material to fix uranium. Uh, that's |
|
| 25:36 | why a lot of condensed section show radio activity on down logs. |
|
| 25:42 | because of the organic material that typically reason very resistant. So if you |
|
| 25:47 | it when you take a class in organ al icis, one of the |
|
| 25:51 | that you can identify source rock into is intervals and have high gamma on |
|
| 25:56 | re specific high gamma comes through organics the high. Resist if it also |
|
| 26:00 | to the organics on Also chalk Fossil a church, and also because these |
|
| 26:08 | all basically, the remains of organisms also be concentrated in condensed sections. |
|
| 26:14 | also true that condemned sexes could be that if they go below three calcium |
|
| 26:21 | compensation, death, maybe areas we dissolution Well, the Hawk refers to |
|
| 26:28 | corrosion or or dissolution off the off sentiment. You may form marine hard |
|
| 26:35 | of firm grounds and convince sections. is a nice example of a cadet |
|
| 26:41 | from a well known example. And can see these nice data lapping Cloud |
|
| 26:47 | his belt cloud forms. And if look at the Web all signature close |
|
| 26:54 | , we can see that there is of the baseline gamma in the pro |
|
| 26:57 | way. See, there's a huge , much more radioactive from this convinced |
|
| 27:02 | here. At some point it goes the scale, and that, of |
|
| 27:05 | , is called the uh fish scales , which is which is equivalent to |
|
| 27:10 | Maori shale in uh, in the Um, that's an organic rich layer |
|
| 27:18 | has been tonight's a lot of organic , false panic, fish remains, |
|
| 27:24 | there's a very important source. Rock the in the Cretaceous. Okay, |
|
| 27:32 | there's just an example of what's interesting this condensed section here is separates the |
|
| 27:38 | stand from the transgressive systems track. was also convinced section in between the |
|
| 27:44 | and late lowest right Because there's a surface, there's we get deposition. |
|
| 27:49 | fan. You could get sediment Talk about that was somewhat convinced. |
|
| 27:55 | then the programming shelf so marginal. about the compensation here. Probably be |
|
| 28:01 | time in the conversation there on that will. Probably better. Richard docs |
|
| 28:07 | . That might be a little Okay, now, here's an example |
|
| 28:16 | something that we haven't talked about. is a slide that comes from lower |
|
| 28:20 | . Lowell is a senior, was senior research advisor at Pioneer. I |
|
| 28:27 | talked them for them for about 34 and then communicating since Kobe hits, |
|
| 28:33 | don't know if he's still there. certainly hope so. But he and |
|
| 28:37 | , I used to teach a course sequence strategically fair. That was course |
|
| 28:41 | taking here, and he used to a, uh you know, they |
|
| 28:45 | almost exclusively a nonconventional oil country. so he like to get a little |
|
| 28:53 | on how to use the interaction of of deposition and the interaction of sequences |
|
| 29:02 | tracks to predict periods of geological time you have super source rocks. |
|
| 29:10 | What he basically sadness? Look, got these slowly varying, you |
|
| 29:15 | 1st and 2nd order cycles of sea change. They're superimposed on third, |
|
| 29:22 | and 5th order changes. Okay, any time you take 34 curves that |
|
| 29:29 | varying at different frequencies and add them together, Okay? Sometimes the peaks |
|
| 29:35 | gonna all coincide. Sometimes they're gonna interfere. Okay, so what? |
|
| 29:40 | shows you've got transgressions. High stance classic TR sequences developed, right? |
|
| 29:47 | the super that superimposed on a longer . Retro creation and procreation. So |
|
| 29:55 | at a p. Okay, this care might be what's sometimes called super |
|
| 30:01 | . Thes small units of sequences. internally consistent, smaller scale systems |
|
| 30:08 | In this case, we have constructive off a third or sequence, Hiestand |
|
| 30:16 | a second order, Hiestand. So shale here represents a super condensed |
|
| 30:24 | or if you will, a super step and, uh And so what |
|
| 30:31 | suggested is you could go and look the sea level curves that excellent developed |
|
| 30:37 | that show the different cycles off sea . I think I showed that |
|
| 30:42 | Uh, last week you remember I the 2nd, 3rd, 4th order |
|
| 30:48 | and loan just said, if you actually integrating those, you'll find that |
|
| 30:52 | are times throughout the founders or where have high stands at several scales |
|
| 30:59 | uh, constructively interfering. So you times of extremely high sea levels with |
|
| 31:06 | of prolonged compensation. Of course, of those some of those, |
|
| 31:12 | those super sequences may reflect the positive of both tectonic sequences and you static |
|
| 31:22 | . And there may be other like times of oceanic anoxic events, |
|
| 31:26 | , which may also be party related see double changes that all reinforced, |
|
| 31:31 | to get a few times in Earth . Such is the salary in, |
|
| 31:37 | the late Kim Original or the which is so I'll stay seated for |
|
| 31:44 | . Timonium period. These are all . Then there's the, uh, |
|
| 31:48 | Miocene, and these are all periods geological history that generates super source |
|
| 31:54 | All over the globe. And, know, if I was teaching petroleum |
|
| 31:58 | to you, I could talk about in Algeria looking at the great Samarian |
|
| 32:03 | . Rock plays there. Kim Original rock, which is critical in East |
|
| 32:08 | Luthor. Man, North Sea. , Cretaceous source rocks critical in western |
|
| 32:14 | and so on. So on, the late Miocene source rocks, which |
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| 32:19 | huge in the Caspian on Romanian, , petroleum areas. What this show |
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| 32:30 | is sort of continuing. This story off. So this shows another grand |
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| 32:42 | stuck on top of this letter So one super sequence here, another |
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| 32:46 | sequence here and then here we have ultra organic, rich based mud rock |
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| 32:52 | that bounds thes two super secret sets on. So this will be one |
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| 32:57 | these even more globally important super source . This is the kind of stuff |
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| 33:04 | pioneer is producing oil and gas Rome the Permian Basin, which the time |
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| 33:08 | global ocean anoxia and super super high levels, that makes sense. |
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| 33:17 | there is this concept of type one type two sequences. Uh, people |
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| 33:22 | use that much anymore. Eso in type groups in a type one |
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| 33:30 | There it is. Uh, we just sketches, and that's right. |
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| 33:36 | sequence. Give a platform. Slope is exposed. You get inside |
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| 33:44 | this big basin will shift in. face is okay. That would be |
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| 33:47 | type one in the type to sequence way. See? Procreation Para super |
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| 33:55 | , I think was aberrational. We on lap in this Hiestand Systems |
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| 34:01 | Okay. And then above that sequence , we see shifting on lap from |
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| 34:06 | point to that point. So there's degradation. The degradation is recorded about |
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| 34:12 | would shift a normal. We see change in the Paris equals stagnant |
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| 34:17 | But based on the fall that that dropped the position on that. |
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| 34:22 | here to here, it was not to show exposing this case. Shell |
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| 34:26 | , break. No, major midpoint exposed, so there was no |
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| 34:31 | There is a lack out on conformity and be all this points. All |
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| 34:36 | conformity. So this is sequence That's a nonconformity in that direction. |
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| 34:42 | a relative could form the everywhere Okay, because because the unconfirmable blackout |
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| 34:49 | only observable in very approximate part of basin. These things are actually pretty |
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| 34:55 | to recognize. It's a consequence. don't talk so much about type two |
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| 34:59 | boundaries. They are there, and can. They can be seen in |
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| 35:03 | basins that preserve this part of the . The other thing that Zinn that |
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| 35:13 | the bandwagon book is the idea of that form bases that have a distinct |
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| 35:19 | . So break, such as a continental margin On that contrast, the |
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| 35:26 | form and so called ramp margins. if you look out crazy dying around |
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| 35:39 | , Okay, so that's supposed to North America. Okay. And |
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| 35:52 | Okay, The blue areas. A seaway. Okay. The show slope |
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| 35:57 | the show slope right there at the of Mexico. There's a show slope |
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| 36:00 | up there in Alaska, but all delta that feed into the margin of |
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| 36:03 | C way. It's just a graduate that goes the middle. See where |
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| 36:07 | starts to rise again. Moves moves towards the appellation side of the system |
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| 36:13 | Appalachia is crystal changes to call And so three only nick point you |
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| 36:19 | in a rap margin. There's a margin. You do get a little |
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| 36:24 | point associated with the shoreline, all , but it's It's a relatively small |
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| 36:27 | point that could expose a slope that have a line distance of 15 to |
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| 36:36 | m. So commonly being size values seaway another more than about 15 2030 |
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| 36:42 | ft. Whereas when you're in a calls, not margin, with 150 |
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| 36:47 | of sea level drop, you get valleys that are hundreds of meters that |
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| 36:52 | into a large, full fledged submarine . Okay, now this is the |
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| 36:59 | slide, and many people that you take many people who teach secret security |
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| 37:07 | . We'll spend a lot of time this diagram. I for me, |
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| 37:11 | puts me to sleep a little However, there are different opinions on |
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| 37:17 | sequences should be labeled. Okay, is ashen member who says, |
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| 37:22 | you know, the easiest thing to the field is whether the rocks coursing |
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| 37:26 | final. So let's just separate them progressive, transgressive sequences with a maximum |
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| 37:33 | of services between right, no falling , no high stands, just progressive |
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| 37:38 | . Aggressive. Okay, that's pretty . That doesn't separate when it's formed |
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| 37:43 | during falling stage. Uh, to , it's sort of it's a little |
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| 37:50 | simplistic from that. We have the of sequence okay and way have a |
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| 37:59 | stand. Low stand transgressive Hiestand Systems even back with bail stays. There |
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| 38:05 | an idea that was the most. fan and roast and wedge. Okay |
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| 38:10 | , then, a bunch of Well, maybe we should call that |
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| 38:14 | stand fan Late, Hiestand fan. I'm like, well, late, |
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| 38:18 | , low stand late. High standard levels, not standing. It's |
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| 38:23 | Why, You know, let's get of words Standard Z confusing, nothing |
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| 38:29 | . You know, this is the of rapid fall. Why don't we |
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| 38:32 | call it a called a falling Systems tracked, right? Well, |
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| 38:37 | know what to do with that surface , because that service could be a |
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| 38:40 | little down steps that may not be really obvious erosion surface. So say |
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| 38:45 | service is actually kind of pick it of just appointed talk on then. |
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| 38:50 | course, Bill Galloway came along and , and no, I'm not sure |
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| 38:53 | all this along this low stand Hiestand , you know, what's really |
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| 38:57 | Identifies is the maximum service and then came along and try to simplify |
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| 39:02 | You know, all of these secret that used by a variety of people |
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| 39:06 | don't really care. What you but I do care about, is |
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| 39:09 | you learn how to identify surfaces on relationships and key surfaces in the data |
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| 39:18 | I'm going to give you. so my focus in Secret Service very |
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| 39:23 | . It's based on interpreting data, observations and naming things at the end |
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| 39:30 | the description of the complicated triggered. , so I tend to be more |
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| 39:36 | on on describing this photography and getting the correlations done. A supposed to |
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| 39:41 | about what? To make things. . Now, I know that we |
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| 39:49 | a break just a little bit but we've been going 37 minutes. |
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| 39:53 | is always better to think of the world to take a break. |
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| 39:59 | look at Maria chance to stop this , and, uh, then she |
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| 40:06 | save it. You'll have a nice contact. Save of the end of |
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| 40:09 | lecture is what I want to do . Is starting a lecture on |
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| 40:13 | Uh, that's a fairly long lecture than lace right into it now than |
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| 40:18 | for an hour a bit. But rather do is just just a little |
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| 40:22 | minute break. It's 4 11 right , let's say, or 3 11 |
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| 40:26 | time. I think it's 3 11 three year time, so let's meet |
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| 40:31 | at, uh, 3 60. gives you exactly five minutes. |
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| 40:38 | Way Could maybe take a minute to , uh, meet me back about |
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| 40:45 | |
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