© Distribution of this video is restricted by its owner
Transcript ×
Auto highlight
Font-size
00:07 You and for the two people that gonna be looking at this,

00:10 don't delay. Um, when you at the E logs, uh,

00:14 see a sharp, you see a face hang on shot base here,

00:26 base here, then it's broadly finding and sharply truncated. Ok.

00:35 this is our point bar. So gonna be c and this is the

00:40 channel. So that's gonna be So those two are pretty straightforward.

00:46 , mainly mud, those spikes of uh, silt probably, uh,

00:51 gonna be the flood plain. So e pretty straightforward. Uh This one

00:56 be a little confusing. It could a couple of things. Most likely

01:01 looking at the Crevasse play. uh, it could be b uh

01:11 D although D looks more like it's be a crevasse channel. Uh,

01:16 I'd give you credit for either. , not likely to be levy because

01:22 levee at least is shown here is gonna be coarsening upward.

01:27 you made it? Yeah, I thinking you weren't gonna make it.

01:43 . My problem. Thank you. And so if this were a

01:52 it would be both coarsening upwards and upwards. Now, what that would

01:57 me is that either the stream was closer and it's coarsening upwards and then

02:04 away or it gradually shut down. . So less likely for a

02:10 Ok. Uh Let's look at this here. Um I, I tried

02:17 make it as simple as possible. wasn't always um successful. Uh But

02:22 of all, I assumed you could the face she track, which was

02:28 the cross section and vertical sequence of simple meander bar. So I tried

02:34 make it as simple as possible in it, it is not a uh

02:38 grained compound bar, it's just basically point bar. And so here's what

02:45 looking at. And so uh the thing is there's gonna be a channel

02:50 gonna migrate. And so it's gonna uh basically series of laterally accreting point

03:07 . Beg pardon? OK. Uh accreting point bars. OK. And

03:15 so this is a good place to The bounding services. The 5th order

03:24 these would either be uh three or . OK. And then internally,

03:30 can describe those a little better Uh In others, here's the fifth

03:36 basic channel you've got looks like maybe three of these um bounding

03:50 Then internally you're looking at maybe something this that is to say, mainly

04:03 cross strad on the bottom, uh more parallel to ripples or rippled to

04:10 , something like that. Ok. are each of the flood packets that

04:13 looked at. Ok. Now, could also have inferred that down

04:19 there should be some abandoned channel, or not. Um If, what

04:25 saying, if you did through it I did, uh, there's no

04:30 channels filled, it's just active channel then it shut off. Ok.

04:34 Now you also should have drawn the and that would have been something like

04:39 course developments. Ok. So that's I'm looking for. Uh When you

04:45 at your exam. Ok. Uh , typical tidal flat face, she's

04:50 and vertical sequence. What I should said is in cross section that may

04:56 confused you a little bit. Uh uh the first part, the

05:03 she's track, there's a lower middle upper tidal flat. Ok. That

05:12 is gonna be the sandy tidal The middle is gonna be the mixed

05:18 flat. Uh The sear upper is be the muddle mud or muddy tidal

05:25 . So that was pretty straightforward. 123 here, it helps if you

05:35 the meandering channel. Ok. Uh would be the uh inclined heterogeneous

05:44 basically mud and sand. Ok. probably a little gravel right down here

05:50 the base. Ok. So once done that, you can think

05:54 ok. The so far is then to grade into the upper mud,

06:05 , middle mud flat or tidal flat said in lower tidal flat.

06:14 it doesn't really matter where you draw boundaries. Um You don't have enough

06:20 , but you should know that that sequence is going to be uh the

06:28 to sand and mud, to And then within there, you're gonna

06:35 the range from pleasure to lenticular cross , ok. In terms of

06:44 ok. Now, you could have it. Um Let's see, I

06:52 erase it very well. Uh You have drawn it pro grading like

06:59 OK? But the key is you it sandy mud, flat, mixed

07:07 flat or sandy title flat, rather title flat, upper tidal flat

07:17 And then the salt marsh is really super. OK. Uh This section

07:24 again, uh I I told you you need to describe the vertical sequence

07:30 this. OK. And sub divide into things like the foreshore or out

07:35 foreshore sector. And what is the to find? Well, I kind

07:41 gave you a strong hint by leaving little tick marks. OK. Um

07:49 , first of all, this is entire uh pair of Sequels. Uh

07:55 is the foreshore, this is the face, upper, short face,

08:10 , lower, short face, lower to face and then offshore.

08:19 . Now, each of these is to have uh a set of characteristics

08:24 you can kind of infer by looking the sketches. So I just wanted

08:28 , a sentence or two, saying what you would find in each

08:34 these. Ok. Um, and say a sinister to, uh,

08:40 most you're looking at uh, five for each category. Ok.

08:49 so let me stop for a Uh We're still recording. Do any

08:53 the three of you here? Have questions on what I've just gone

09:05 Ok. Well, let me stop video. Um,

-
+