| 00:25 | Mhm. My mhm. Everybody Yep. Just got our tea. |
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| 00:43 | huh. I just had a Nice little bit of honey was to |
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| 00:51 | me going. Shoot. Yeah, finished. It already is like two |
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| 00:57 | . Let's go. Man on. sister's has invited me for barbecue steak |
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| 01:03 | . So there you go. Good . Yeah, really, really good |
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| 01:10 | . You're eating really good today. , I know what I'm eating too |
|
| 01:17 | . You know, I've been losing during Cove in on. I've always |
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| 01:21 | Saturdays. You know, I do of miss the collage. What is |
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| 01:24 | ? The philosophies we used to always on Saturday morning. I tell you |
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| 01:29 | the first year is I taught Uh, the the hot bagel shop |
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| 01:34 | just around the corner from my house Montrose on my wife was really cool |
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| 01:40 | cutter on fresh bagels with, salmon cream cheese. Uh uh. |
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| 01:48 | of cream cheese is to go with . Oh, variety of bagels. |
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| 01:52 | then we eso I would bring breakfast the group, and then a few |
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| 01:57 | , they don't have a kind of the students to rotate buying breakfast. |
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| 02:01 | we went from bagels to Colossians. you know, Thekla's partners healthy, |
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| 02:06 | they're kind of, you know, a guilty pleasure to have every once |
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| 02:09 | a while, it's a hot bagel down a couple of doors Now from |
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| 02:17 | age eso the shopping center that it in. They moved. It was |
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| 02:21 | two or three doors down a larger . Everything slightly cleaner. Yeah, |
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| 02:27 | make great. Yeah. Anyway, I'm going to go ahead and get |
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| 02:37 | here. I see we're waiting for . Daniel J d. But I |
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| 02:43 | say we'd started. Uh, there go. Okay. Very good. |
|
| 02:49 | right. So what we're gonna do is kind of it's sort of repeat |
|
| 02:53 | exercise that I just did or the . So we just spent uh |
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| 02:59 | we just spent the last part of talking about the faces. Variations within |
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| 03:07 | all flapping river dominated the Paris sequence that contains a incised valley, and |
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| 03:15 | low stand attached. Delta on. looked at the faces associated with high |
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| 03:20 | delta that we looked at the fill on. Then we, uh |
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| 03:25 | then we looked at the mhm Then we looked at the low |
|
| 03:30 | a zit went off discipline. The were not gonna jump up. And |
|
| 03:35 | at this next Paris sequence set in . A member D and you notice |
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| 03:40 | thinner. Uh, quite a bit than than the underlying Allah member. |
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| 03:45 | as you're going to see that that face is very different. This is |
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| 03:49 | more wave dominated. Uh, de system so consists of of three off |
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| 03:57 | Paris sequences. 32 and one Usually I used the word one for |
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| 04:02 | youngest one, and then I count from there. Tom. Uh So |
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| 04:07 | a map of schematic map of Allah D uh, Paris sequence to maps |
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| 04:15 | a zoo, This beautiful barrier island eroded into by unsigned valley that feeds |
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| 04:21 | low stand delta that represents Paris Sequence and I haven't separately mapped Paris sequence |
|
| 04:27 | , the oldest one here. That's quite a money unit. So it |
|
| 04:31 | really wasn't able to map in terms sandstone mythology, but it would be |
|
| 04:35 | here somewhere. And once again, got a cross section that goes from |
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| 04:40 | to be prime, which is approximately . So we started the barrier that |
|
| 04:45 | jumped in size Valley. Let me to low stand delta and then and |
|
| 04:49 | cross section a prime is a strike section through the valley associated with |
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| 04:55 | A member D. So here's the , a cross section. Once |
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| 05:03 | Gamma is on the left recessive it on the right, and the black |
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| 05:07 | the court intervals. Okay, on is the high stamp barrier island |
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| 05:13 | Uh, the value that cuts it it that that that valley feeds a |
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| 05:18 | stand delta, uh, deposited at and Amazon's consequences of forced aggression. |
|
| 05:25 | , what's interesting is if we have a lower data, we notice at |
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| 05:29 | top of the low stand, delta about 25 m below the top of |
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| 05:34 | Hiestand Delta, so that indicates a about 25 m of shoreline drop, |
|
| 05:42 | that that data was flat at the of deposition. So we get a |
|
| 05:46 | for the magnitude of Seattle. Drop by by just looking at how that |
|
| 05:50 | is has descended across the cross Interestingly, the amount of drop associated |
|
| 05:56 | the previous Allah member was only about leaders in the area that we |
|
| 06:00 | So it looks like Alan Member deism aggressive or larger scale forced aggression with |
|
| 06:04 | or, ah, largest seat of draw. Yeah, that's kind of |
|
| 06:09 | in the core cross section. So is This is just the same cross |
|
| 06:13 | , but I'm just showing the court Thanks where I've got details and sentimental |
|
| 06:19 | . That's the core. If it's , that means that I'm basing. |
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| 06:22 | assuming that sand based on the our signature. But of course, |
|
| 06:26 | in this case right there and What we see is the Hiestand |
|
| 06:31 | It wrote it into by a finding Valley fill that feeds on the |
|
| 06:36 | Delta. Once again, we'll we'll start looking at the the core |
|
| 06:42 | So we start off in in the Paris sequence T three, and this |
|
| 06:48 | always been a bit enigmatic. To . It's very un bar debated. |
|
| 06:51 | got these gutter casts with a monkey . Try to five very fine lower |
|
| 06:56 | still stones, and it looks a like a storm flood dominated delta. |
|
| 07:01 | pretty pro del take looking faces that upward okay into a sandstone, which |
|
| 07:10 | right there. So that's That's the surface at the top off D three |
|
| 07:16 | you can see there's a little transgressive there on overline that the rocks much |
|
| 07:22 | bar activated. Okay, so there's little flooding surface there, and then |
|
| 07:26 | into these bar debated faces open marine these. Then the storm flood delta |
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| 07:31 | below and the high level of of the high level of borrowing on the |
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| 07:37 | diversity of trace fossils indicate that this a a fair weather storm. A |
|
| 07:43 | weather dominated faces succession very different than we saw in L. A member |
|
| 07:48 | the underlying unity. As we course upward, we alternate between bar debated |
|
| 07:54 | laminated back to bar debated faces. sometimes use work lamb scram to describe |
|
| 08:00 | describe that laminated to scrambled, and basically represents time times when storms were |
|
| 08:06 | the sediment and then times in between storms when it gets a little bit |
|
| 08:11 | and the rocks of the sentiments were by, activated by ah, large |
|
| 08:16 | of robust trace bustles, indicating a , energetic environment as we pass up |
|
| 08:24 | the Paris equals we start to see of repose. Cross bedding on that |
|
| 08:29 | the migrations of dunes in the upper face. And now we have upper |
|
| 08:34 | face. Environment is we gradually course upwards on shallow upwards. So what |
|
| 08:38 | We're in the in the upper shore indicating by this cross beds. When |
|
| 08:44 | get to the top of the sandstone , we see parallel laminated sand |
|
| 08:48 | That's the foreshore or the beach. , so now we're in the shallowest |
|
| 08:55 | part of the Paris sequence. On , we see a nice sharp contact |
|
| 08:59 | . You notice that the upper part the beach is riddled with roots, |
|
| 09:05 | that's a severe eel exposure surface, surface the plants were living on top |
|
| 09:10 | on the roots of digging down to to the water table. Then we |
|
| 09:15 | a coal on top of that. years, I thought, Well, |
|
| 09:18 | the coals. They made the but it doesn't work that way. |
|
| 09:21 | roots indicate the period when it was little dryer on the the roots of |
|
| 09:26 | down to get to the water The coal represents the rise of water |
|
| 09:31 | that then allows the plants to be . So that's so. That's so |
|
| 09:36 | period of severity exposure, when the of digging down was was the period |
|
| 09:40 | time when that Barry Sand was exposed the air. Eventually the ground water |
|
| 09:45 | to rise a little bit. Or you have been substance and you go |
|
| 09:49 | a swampy marsh deposit or Pete. , and that's the cold. You |
|
| 09:54 | argue as to whether that's a or it's just, you know, |
|
| 09:58 | that the system is just sinking a bit. We then see that these |
|
| 10:04 | lagoon fits the swamp E. Coli of marsh Faces are sharply overland by |
|
| 10:09 | bar debated sandstone. That's the transgressive on the bar. Debated sandstone is |
|
| 10:16 | separated with bar debated muddy sandstone A laminated shales above that represent the |
|
| 10:23 | delta off the next planet, forming even set. So that would be |
|
| 10:27 | maximum flooding service. So, like as in in al a member e |
|
| 10:36 | the top of the High staff, saw roots indicating plants digging down to |
|
| 10:41 | the water table over lane by kind ah, marshy wetland sequence that might |
|
| 10:47 | subsidence and things going a bit wet then eventually wage right across the |
|
| 10:52 | wrote a Z. They go forming transgressive surface of erosion. Now we |
|
| 10:57 | a transgressive deposit that's sharply overland by trails. So we we see the |
|
| 11:03 | sequence of of surfaces in the wave , uh, Allah member D that |
|
| 11:10 | see in the river dominated Allah Member all the same surfaces. Very similar |
|
| 11:16 | , transgressive faces. But the Hiestand are wave dominated. Shore face in |
|
| 11:22 | , Member D and River dominated Delta Allah Member E mhm. Let's look |
|
| 11:28 | the valley, Okay, A sharp erosion all base overlay by finding |
|
| 11:34 | facing succession. Here is the strike section with the well logs, and |
|
| 11:40 | could see the valley there, little high stand and then and then the |
|
| 11:45 | segments of the valley. So that's section a prime. Across these two |
|
| 11:50 | segments on, there is the core . So again there's the valley. |
|
| 11:57 | cuts quite deep cuts almost 35 m . So it's a much deeper incision |
|
| 12:01 | we saw. An element member et said that when we flattened on the |
|
| 12:05 | datum, the the the degradation of and he looked like about 25 m |
|
| 12:12 | . So therefore, the Valley cuts . Uh, on the Valley field |
|
| 12:16 | got flu viel sandstone to the And then it's got these horrific Marine |
|
| 12:21 | kind of at the top or in middle, Very classic estuary in |
|
| 12:27 | Let's look what course looks like. here we have these laminated borrowed sediments |
|
| 12:33 | look a little pro Deltek. That's Paris Sequence D three. A little |
|
| 12:40 | more storm flood dominated, so detail completely been eroded away. It's completely |
|
| 12:44 | here. Then we see a razor contact that puts cross bedded sands on |
|
| 12:50 | of storm Flood proedl zone. Of , the entire Delta Front needs an |
|
| 12:55 | pass sequences missing there. That's a significant un conforming. You will notice |
|
| 13:01 | there's borrowing right away in this in in this valley field. So this |
|
| 13:06 | a much more marine influenced valley and that may be reflected. The |
|
| 13:10 | that Alum and um D in general more wave dominated. Although there's a |
|
| 13:15 | incision, it doesn't look like the had as much sediment. So there |
|
| 13:18 | be a decrease in the sediment supply with Allah member D that makes the |
|
| 13:24 | more wave dominated a Z. We up, we see sort of massive |
|
| 13:30 | stones and then we get a floating and we go into horrific sand stones |
|
| 13:35 | mud stones. The borrowing is kind intermediate in intensity, so by occupation |
|
| 13:41 | ranged on. A scale of which is no borrowing to six, |
|
| 13:45 | is 100% on these rocks would sort be around three. Right, So |
|
| 13:50 | 30% borough 30 40% burrow because still lots of primary stratification not suggest that |
|
| 13:56 | may be some brackish stress stress in upper value field, suggesting perhaps an |
|
| 14:04 | environment. Oh, again, we the borrowing increases intensity up on the |
|
| 14:11 | top to get some hunky sands representing transgression of a shelf into the |
|
| 14:17 | Then we see a razor sharp and that's overlay my mud. We |
|
| 14:21 | see this little slug of a bar transgressive sandstone that over lies some of |
|
| 14:27 | mud. But overall it finds Thanks. Now the models for estuaries |
|
| 14:33 | we may talk about this a little more tomorrow. The tripartite model for |
|
| 14:38 | dominate estuaries suggests that you get the of the estuaries closed by a wave |
|
| 14:45 | barrier. The river feeds into the would end and the central area it |
|
| 14:49 | be tied influenced, brackish bay So you may have flu viel overlay |
|
| 14:55 | bay fill with marine faces pushed into history from the from the outer |
|
| 15:02 | Okay, here's a cross section that what that tripartite film might look |
|
| 15:07 | So you have a transgressive Fallujah faces , then a Delta faces and then |
|
| 15:17 | wave dominated system that the mouth of history and with So you have |
|
| 15:23 | uh, Central Bay Phil and then at the outer end of the |
|
| 15:27 | A bond that zero to the the Central bay and then Marine faces |
|
| 15:32 | talk. So we see that tripartite . That's that's kind of diagnostic of |
|
| 15:36 | estuary filled. It's all contained within valley, and it looks like a |
|
| 15:42 | fill. This kind of goes back discussion. We had yesterday that sort |
|
| 15:46 | a mere point of that which you know, So is that a |
|
| 15:50 | or is that low stand system it's pretty clear feeds low stand |
|
| 15:53 | So I'm a sort of more or call that a low stand, |
|
| 15:57 | but it is transgressive in nature. have a look at these low stand |
|
| 16:03 | . So now we're into the more faces we start off in D. |
|
| 16:08 | d three is laminated, were so it's It's getting really money. |
|
| 16:14 | a few of these little storm little gutter casts. Okay, is we |
|
| 16:19 | up way? See that there's that increase in bio activation. So that's |
|
| 16:24 | band between the three below and d above. That's right about here. |
|
| 16:29 | can see it's laminated here, and suddenly it's much more of our |
|
| 16:32 | It's a pretty subtle contact That was . Transgressive surface of erosion on the |
|
| 16:40 | . We're too far offshore and out sea. Much of anything. Let |
|
| 16:43 | go into the spire. Debated, , precaution faces. Okay. |
|
| 16:47 | uh, which goes into laminated sand . And, um, that's |
|
| 16:57 | All okay. Yeah. Yeah, just that's just marking the the more |
|
| 17:03 | debate above Unless part bill. that's kind of represents that d two |
|
| 17:09 | three contact on the top of the body shows nice. Well laminated, |
|
| 17:15 | , deposits representing upper Delta or upper face. And for which delay the |
|
| 17:22 | top of that core was not was penetrated. Okay, um, so |
|
| 17:30 | offshore, we can have a look the at these more distant faces. |
|
| 17:38 | , that's this core right here. here we see again. Beautiful upward |
|
| 17:44 | faces. So we see laminated sediments . Then they're more bar debated back |
|
| 17:50 | laminated bar Debated. They're going to quite well laminated sandstone courses upward and |
|
| 17:58 | razor sharp contact over lane by the shales that coarsening upward again. So |
|
| 18:04 | the contact between Alan member D below then Allen member see above. |
|
| 18:10 | you know, flooding surface is pretty to pick. I think all of |
|
| 18:13 | could pick that one, and you see the coarsening upward quite nicely in |
|
| 18:17 | overline Paris sequence. Look at the distant end of the system. It's |
|
| 18:23 | muddy. So there is the top Allah member E. That's the river |
|
| 18:30 | one that goes to the mean Okay, then there's a contact |
|
| 18:39 | and it goes into more bar debated and more salty. So that is |
|
| 18:43 | distal expression of the sequence boundary. participated silkier, slightly more energetic faces |
|
| 18:52 | by more distal laminated faces. Those to coursing up. They go from |
|
| 18:59 | of sandy mud stones gradually upwards into sand stones. Obviously, we're the |
|
| 19:08 | the shoreline here. So the so rocks never get up into anything more |
|
| 19:12 | sort of proximal shelf. Very, , very difficult kind of short |
|
| 19:18 | sharp contact and then went back into stones of the next overlying Allah |
|
| 19:24 | Okay, there is a close up shows the contact between the laminated faces |
|
| 19:30 | and then the barter baited phases Love believe that's the contact right there so |
|
| 19:37 | the distal expression of sequence pattern it's subtle. But what is interesting |
|
| 19:42 | if you look carefully, I'm gonna should I should blow this up was |
|
| 19:47 | , But if you look at where arrow is, you see that there's |
|
| 19:49 | really short kicking the gamma log. see that that indicates a really significant |
|
| 19:54 | in clay contact. So it's actually a sharp contact on the log. |
|
| 20:00 | , and you know the core actually like there is less clear, but |
|
| 20:04 | is actually more Claridge, even though got a white color. Okay, |
|
| 20:08 | actually has a lot more silt, though it's got a darker color on |
|
| 20:12 | clearly expressed by this sudden increase in gamma log. Not so clear on |
|
| 20:16 | resist every law. So what we've here is we've contrast ID, the |
|
| 20:24 | and the surface is, and the little faces of a flu viel dominated |
|
| 20:30 | , even set associated with what looks about a maybe a 5 m drop |
|
| 20:35 | sea level versus a much more wave system with much lower sediment supply, |
|
| 20:41 | with a bigger sea of withdrawal. here we see a much deeper incised |
|
| 20:47 | . The valley feels much more That's because the river was less |
|
| 20:50 | But because the sea level drop was , the river had no choice but |
|
| 20:54 | cut more deeply. So this is of interesting fight between the depth of |
|
| 20:59 | versus the nature of the film. addition, we saw that the the |
|
| 21:06 | facings thing environmental liver faces in particularly the regressive surfaces and and the |
|
| 21:14 | fields were very different even though the of the services themselves was similar. |
|
| 21:20 | between the, uh, Allah members between the sequences the top three, |
|
| 21:26 | of the drops by about 25 m correspondingly, there is the higher level |
|
| 21:30 | incision, probably because there was more a knick point exposed. Okay. |
|
| 21:36 | in contrast, the drop of Allah E is much less only about 5 |
|
| 21:40 | at the scale of this cross So they both show clear down |
|
| 21:45 | But D shows a great level of stepping than eat. Uh, |
|
| 21:51 | the kind of drama that we see very similar to what we see in |
|
| 21:55 | In Things Like these forced crest deposits occurred the shelf edge of the Rhone |
|
| 22:00 | in the offshore Mediterranean. The difference these deltas end up reaching a passive |
|
| 22:07 | shelf edge, whereas Dunvegan is in ramp. Margin on. Of |
|
| 22:14 | You know, here are these all climate forms. Okay, You notice |
|
| 22:17 | I use an upper datum here. , so there's a bit of pull |
|
| 22:21 | here which is probably artificial. That probably dips, will probably okay for |
|
| 22:27 | of this region here, and And kind of just shows a little system |
|
| 22:35 | evolution off the Paris sequences. So start off. Yeah. You |
|
| 22:43 | we start off with aggregation all to , ALS, a combination succession. |
|
| 22:48 | we get the drop of sea We get decision of a Valley deposition |
|
| 22:53 | a low stand delta. Okay, , then we get continued subsidence. |
|
| 22:58 | delta goes from probation aggregation. All start to see Valley fell on, |
|
| 23:04 | maybe a bit of accumulation of Peru faces during the the end of the |
|
| 23:08 | stamp. Okay, eventually, we transgression across the top, and then |
|
| 23:12 | get some erosion of the top set . We see that organization of photography |
|
| 23:19 | both of the alum enters the differences E. This is a river dominated |
|
| 23:24 | and a d. This is a dominated shore face wave dominated delta. |
|
| 23:34 | gonna get it now. What's interesting is John Van Wagner in his textbooks |
|
| 23:41 | write it below the deltas. So we have a truncation surface that goes |
|
| 23:48 | base of channel on eventually goes into core relative conformity. Now, this |
|
| 23:56 | a little bit of a side. always tell the story. Atlantic donut |
|
| 24:01 | . What was weird is when I I when I wrote this paper I |
|
| 24:06 | I think I put this paper. is a paper on key surfaces. |
|
| 24:10 | a paper 1990. Back then we use color. So it's all the |
|
| 24:15 | in black and white. But if know if you read that paper, |
|
| 24:18 | you'll hear this story. So you all that you have a nice document |
|
| 24:21 | that explains the story. But one was a buddy of mine. |
|
| 24:26 | actually, he was. He was guy that used to work with |
|
| 24:29 | and we sort of got a bit a fight. I mean, he |
|
| 24:33 | insistent in reviewing the paper, Take sequence boundary and put it on top |
|
| 24:37 | the dealt. And I said, I do that, then I've got |
|
| 24:40 | valley that doesn't feed anything that makes sense. So I took a |
|
| 24:43 | The delta, you know, indifference John Brown Wagner, who I agreed |
|
| 24:48 | . But this this colleague was insistent the sequence panic goes above. He |
|
| 24:53 | get his way, and I argued him. And, uh, eventually |
|
| 24:57 | guy left Exxon. I went to company BP, and promptly began funding |
|
| 25:02 | . So maybe maybe he was required disagree with me as long as he |
|
| 25:06 | an X song. But once he , he was allowed to agree with |
|
| 25:09 | again. I don't know, never asked him, but and he was |
|
| 25:13 | . He used to always criticized John Wagner once he left Exxon. So |
|
| 25:17 | don't know, maybe those guys didn't along very well. But in this |
|
| 25:21 | , I thought John Bag Van Wagner's was correct, and I applied it |
|
| 25:25 | pleasure. Okay. And so what see is is a similarity in the |
|
| 25:30 | strata graphic organization of stacking patterns, the fact that the environmental faces are |
|
| 25:36 | different. Yeah, On one of problems is you know, the deposition |
|
| 25:41 | faces below and above the sequence boundary that different? So you know that |
|
| 25:47 | , Although I showed you what it like, you know it Z may |
|
| 25:52 | hard to appreciate that, you it wasn't always obvious where that surface |
|
| 25:56 | when I was doing the work 30 ago. You know, I've told |
|
| 26:00 | story so many times, and it very convincing, but, you |
|
| 26:03 | I mean, you know, you , that could be just a little |
|
| 26:05 | surface. And what I may have a big deal about being a sequence |
|
| 26:09 | , but a lot of other people , Well, that's just a little |
|
| 26:11 | off slump. It's a storm It's, You know, while you're |
|
| 26:14 | strata graphic significance on that contact. like, because I'm a secret security |
|
| 26:18 | it fits the model better. you're being model driven. Well, |
|
| 26:22 | could tell me if you think my is right or wrong. You |
|
| 26:25 | my oxen call. You wanted to a secret boundary up there and didn't |
|
| 26:29 | that to be an important surface at . Just noise, right? I'm |
|
| 26:32 | , Well, we agreed to screen Cakes. Uh, now the other |
|
| 26:38 | . And this is something that, I, uh, haven't talked about |
|
| 26:44 | . Let me see where we Here, Um hopefully is if I |
|
| 26:55 | a little break, it's not because just, uh I want to go |
|
| 27:02 | to, uh, So if you this map, uh, this is |
|
| 27:19 | from oldest to youngest, okay? so we start off this talk by |
|
| 27:25 | of focusing on on these the al member e, which is basically syriza |
|
| 27:31 | seaward pro grading, off flapping Delta's with. And that's kind of the |
|
| 27:36 | of maximum aggression there. And then I show this slide, which is |
|
| 27:44 | it indicates that the entire areas flooded those marine again. Okay. |
|
| 27:49 | you know, you could see one these here. There's a big |
|
| 27:53 | Okay, that one separates. f for me. There is There |
|
| 27:59 | a you know, someone said why you're putting a slide of all |
|
| 28:03 | . They're like some emphasized that the areas is you know, you |
|
| 28:08 | there's there's a transgression that floods 203 of of, of, of, |
|
| 28:14 | area. You know that that's a transgression. My my opinion. So |
|
| 28:19 | ? I emphasize that in between, are flapping paris sequence sets. There |
|
| 28:22 | these big regional transgressions. And so that transgression, you've got river |
|
| 28:31 | Okay, The next thing you they've dominated barriers. So Bill Galloway |
|
| 28:39 | talked about the fact that these big transgressions reset the page graphic the |
|
| 28:44 | So they're like surfaces that erase the and then some. A completely different |
|
| 28:50 | is done next, right? In , you know, we said that |
|
| 28:55 | a sequence spanning between you two and , you know. But, I |
|
| 28:58 | , you know, the Deltas look of similar above below. So there's |
|
| 29:02 | Major Paley geographic reorganization across the sequence . But there's a profound pain, |
|
| 29:09 | geographic reorganization across these major regional transgressive . And so Bill Gannaway and myself |
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| 29:19 | kind of in agreement that the uh, the big the most important |
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| 29:31 | in some ways are these big, events that that, as we |
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| 29:37 | as we sort of, say, the Paley geographic clock, right? |
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| 29:43 | So it's It's these regional transgressions, know. And when the system begins |
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| 29:47 | pro great again, it's just a different system that has no idea what |
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| 29:52 | before the river's own aggressive, that systems more wave dominated in the example |
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| 29:57 | going from a to D and, know, in in sentiment ology, |
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| 30:02 | know, people used this word genetically that typically when you talkto someone who |
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| 30:08 | faces analysis, they think, Oh , you know, barrier islands a |
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| 30:12 | . It's a different deposition system than river dominated Delta. So what surface |
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| 30:17 | that with the floating service, The bounty just caused a hiccup. It's |
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| 30:21 | dominated, little down step, and continues to be waived, dominated, |
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| 30:26 | you flood that and you have no what deposition system is gonna occur |
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| 30:31 | Which means that you don't know what sand body geometry is gonna be in |
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| 30:35 | above and below flooding surfaces was the about a geometry might be the same |
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| 30:41 | sequence boundaries on there was a lot infants spilled on how important the sequence |
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| 30:46 | are because they are the big genetic Bill gas Bill Gallo and I, |
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| 30:52 | know, based on the world we've saying, Well, yeah, there's |
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| 30:55 | a shift there. You know, basically shifting faces, this truncation, |
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| 31:00 | the petty geographers looked at different. you know that this sort of the |
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| 31:04 | faces air pretty similar anyway. the valleys, of course, show |
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| 31:10 | different internal faces between the two Paris sets. We think that's fundamental, |
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| 31:15 | the difference in the ratio of river marine processes so Allah member D has |
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| 31:21 | aggressive tide wave effects control the value . The is more Marine dominated. |
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| 31:26 | course, that means that the values , although they're deeper so they have |
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| 31:31 | , uh, more fill their more , which means that the quality of |
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| 31:36 | may not be as good. These all things that are important if you're |
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| 31:40 | to predict reservoir quality in an expiration and if you're tryingto understand reservoir |
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| 31:47 | once you start extracting the resources from reservoir in a development or production |
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| 31:55 | and so is the sequence between, is important that both scales So we |
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| 31:58 | that the E E Valley Phil is well, sand dominated. Where the |
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| 32:02 | Valley Phil is much deeper twice. to 3 times deeper than the |
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| 32:08 | But it's got big slugs of mud . That means it's a more naturalistic |
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| 32:14 | . Okay, there we go. . That Z that ends that |
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| 32:21 | And, um, I'm going to stop showing for a little bit on |
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| 32:31 | , you can stop recording for a bit so you can save that |
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| 32:35 | And then uh, uh, move the next one as you see |
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| 32:40 | |
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