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ACT Aspire Science: Identifying Youngest Rock Formations 1 Views


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Description:

According to the information in Figure 1, what is the youngest unit of the Sharps Formation appearing in Nebraska when moving south from South Dakota to Nebraska?


Transcript

00:00

Yeah Oh okay Next up aspiring scientists figure one thing

00:09

right here shows the strata Graphic relationships of some of

00:13

the Great Plains formations Strata graphic columns show older rocks

00:17

the bottom and younger rock units and towards top right

00:21

there All right so here it is That's the data

00:24

representing when all that crap is for study Okay They

00:27

can kind of skim all this stuff if you need

00:29

Teo Here we go according to the information and figure

00:36

one What is the youngest unit of the sharp formation

00:39

appearing in Nebraska when moving south from South Dakota to

00:43

Nebraska It's a blue Daring wives are named Ashwell Question

00:50

asked for the youngest unit in Nebraska So we're looking

00:53

at the right side of the image Whatever is listed

00:55

under Nebraska is probably What do you think in Nebraska

00:59

Yeah well the young in's among these rocks are on

01:02

top The old fogeys are down here on the bottom

01:05

So traveling downwards from the word Nebraska we can see

01:08

the top Most element is labeled the gathering formation That

01:12

means the Gehring formation is the youngest in Nebraska So

01:16

the answer is B right there The problem deals with

01:18

the youngest ages of the sharp formation So immediately rule

01:21

out the oldest formation listed the Brule formation in a

01:25

unnamed Ash D and the Woz Or you'll see rock

01:28

units There are also older than the Sharps formation Ruling

01:32

out these answer Joyce is gives us the confidence to

01:35

say that we really rocked this problem What Come on

01:39

Like you didn't think we'd go there

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