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Due to the slow-moving nature of tectonic plate movement

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Re: Due to the slow-moving nature of tectonic plate movement [#permalink]

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New post 22 May 2016, 10:19
akhil911 wrote:
Due to the slow-moving nature of tectonic plate movement, the oldest ocean crust is thought to date from the Jurassic period, formed from huge fragments of the Earth's lithosphere and lasted 200 million years.

A. formed from huge fragments of the Earth's lithosphere and lasted 200 million years.
B. forming from huge fragments of the Earth’s lithosphere and lasting 200 million years.
C. forming from huge fragments of the Earth’s lithosphere and lasted 200 million years.
D. formed from huge fragments of the Earth’s lithosphere and lasting 200 million years.
E. formed from huge fragments of the Earth’s lithosphere and has been lasting 200 million years.

Can someone help me on this question , I am not able to understand why the official answer given by veritas is correct and need more explanation.


There is a 3 : 2 (between formed / forming ) and further 3 : 2 split (between lasted / lasting ) if we can observe.

The correct choice will be

.... the oldest ocean crust is thought to date ......... formed .................lasting 200 million years

Hence the correct answer will be (D)
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Re: Due to the slow-moving nature of tectonic plate movement [#permalink]

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New post 21 Jul 2016, 03:45
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Re: Due to the slow-moving nature of tectonic plate movement [#permalink]

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New post 21 Jul 2016, 04:04
Due to the slow-moving nature of tectonic plate movement, the oldest ocean crust is thought to date from the Jurassic period, formed from huge fragments of the Earth's lithosphere and lasted 200 million years.

the ocean crust is already formed and even right now it lasts,
so we need to select the answer choice that convey this meaning .

A. formed from huge fragments of the Earth's lithosphere and lasted 200 million years. :lasted is wrong. formed and lasted are not parallel formed is past participle whereas lasted is verb
B. forming from huge fragments of the Earth’s lithosphere and lasting 200 million years.forming is wrong the crust is already formed
C. forming from huge fragments of the Earth’s lithosphere and lasted 200 million years.same as b.forming and lasted are not parallel forming is present participle whereas lasted is verb
D. formed from huge fragments of the Earth’s lithosphere and lasting 200 million years.answer : both formed and lasting are parallel (formed is past participle and lasting is past participle)
E. formed from huge fragments of the Earth’s lithosphere and has been lasting 200 million years.no need of using present prefect
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Re: Due to the slow-moving nature of tectonic plate movement [#permalink]

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New post 21 Jul 2016, 10:36
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StudentHaas wrote:
Due to the slow-moving nature of tectonic plate movement, the oldest ocean crust is thought to date from the Jurassic period, formed from huge fragments of the Earth's lithosphere and lasted 200 million years.

A. formed from huge fragments of the Earth's lithosphere and lasted 200 million years.
B. forming from huge fragments of the Earth’s lithosphere and lasting 200 million years.
C. forming from huge fragments of the Earth’s lithosphere and lasted 200 million years.
D. formed from huge fragments of the Earth’s lithosphere and lasting 200 million years.
E. formed from huge fragments of the Earth’s lithosphere and has been lasting 200 million years.

[Reveal] Spoiler:
In the above question, does the verb-ed modifier "formed" modifies the nearest noun Jurassic period? It needs to modify "oldest ocean crust". I am confused how "formed" is modifying "oldest ocean crust" here.


Thanks,
Andy


'Formed' and 'lasted' both must modify'the oldest ocean crust'

Let's flip the sentence.
formed from huge fragments, the oldest oceanic crust......

The above sentence makes sense.

lasted 200 million years, the oldest oceanic crust.....

The above sentence doesn't make sense; instead, below is the right way:-
lasting 200 million years, the oldest oceanic crust.....

hence, we must use 'formed' and 'lasting' as in option D.

D is the correct choice.
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Re: Due to the slow-moving nature of tectonic plate movement [#permalink]

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New post 20 Mar 2017, 16:07
akhil911 wrote:
Due to the slow-moving nature of tectonic plate movement, the oldest ocean crust is thought to date from the Jurassic period, formed from huge fragments of the Earth's lithosphere and lasted 200 million years.

A. formed from huge fragments of the Earth's lithosphere and lasted 200 million years.
B. forming from huge fragments of the Earth’s lithosphere and lasting 200 million years.
C. forming from huge fragments of the Earth’s lithosphere and lasted 200 million years.
D. formed from huge fragments of the Earth’s lithosphere and lasting 200 million years.
E. formed from huge fragments of the Earth’s lithosphere and has been lasting 200 million years.


OFFICIAL SOLUTION



The correct response is (D).

The meaning of the sentence is that the “oldest ocean crust” was “formed” in the past during the Jurassic period and is currently still “lasting” (since if it’s the “oldest” it must still be around!). We need the past tense/participle verbs to be used correctly.

If you chose (A), the ocean crust was “formed” in the past” but if “lasted” is past tense then the oldest ocean crust is no longer around, which would mean it couldn’t be the “oldest.”

If you chose (B) or (C), “forming” implies the crust is still being formed. While it’s true the Earth’s crust is constantly in flux, we’re concerned with the “oldest ocean crust” – that part that is no longer continuing to form, but was formed at some point during the Jurassic period.

If you chose (E), you correctly used “formed,” however the present perfect “has been lasting” is unnecessarily wordy. The simple participle verb form will suffice.

Does logic dictate that (D) is the correct answer? Yes. Will you ignore it because it uses past participle form modifying the previous subject/clause instead of ‘Jurassic Period’? No. Note that it is correct grammatically and you should know it. Whatever we can infer about the preferences of GMAT is from the questions it gives. GMAT doesn’t clarify its stand on every grammatical issue and the stand is probably flexible depending on the sentence under examination. So you need to be flexible in your understanding of what is and is not acceptable in GMAT. Use logic – remember, GMAT is a test of your reasoning skills. Get to the best answer under given circumstances.
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Re: Due to the slow-moving nature of tectonic plate movement [#permalink]

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New post 03 Apr 2017, 09:54
VyshakhR1995 wrote:
Due to the slow-moving nature of tectonic plate movement, the oldest ocean crust is thought to date from the Jurassic period, formed from huge fragments of the Earth's lithosphere and lasted 200 million years.

(A) formed from huge fragments of the Earth's lithosphere and lasted 200 million years.

(B) forming from huge fragments of the Earth’s lithosphere and lasting 200 million years.

(C) forming from huge fragments of the Earth’s lithosphere and lasted 200 million years.

(D) formed from huge fragments of the Earth’s lithosphere and lasting 200 million years.

(E) formed from huge fragments of the Earth’s lithosphere and has been lasting 200 million years.


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Re: Due to the slow-moving nature of tectonic plate movement [#permalink]

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New post 03 Apr 2017, 10:12
chetan2u wrote:
akhil911 wrote:
Due to the slow-moving nature of tectonic plate movement, the oldest ocean crust is thought to date from the Jurassic period, formed from huge fragments of the Earth's lithosphere and lasted 200 million years.

A. formed from huge fragments of the Earth's lithosphere and lasted 200 million years.
B. forming from huge fragments of the Earth’s lithosphere and lasting 200 million years.
C. forming from huge fragments of the Earth’s lithosphere and lasted 200 million years.
D. formed from huge fragments of the Earth’s lithosphere and lasting 200 million years.
E. formed from huge fragments of the Earth’s lithosphere and has been lasting 200 million years.

Can someone help me on this question , I am not able to understand why the official answer given by veritas is correct and need more explanation.


Hi,
there has been a bit of confusion on the Q.. lets try to clear a bit of air on it

If we look at it, the Q has more to do with parallelism...
there are three info on the oldest ocean crust:-
1) thought to date from the Jurassic period,
2) formed from huge fragments of the Earth's lithosphere, and
3) lasted 200 million years.


so the sentence can be written as..
Due to the slow-moving nature of tectonic plate movement, the oldest ocean crust is thought to date from the Jurassic period, the oldest ocean crust is formed from huge fragments of the Earth's lithosphere and the oldest ocean crust is lasted 200 million years.....
the sentence is perfect except the usage of "is" and "lasted" together..

so we require to clear this..
HOW DO WE DO IT
lasted is changed to lasting as in D..
But it would have been better had it been "lasting for 200 million years"
Also since it is an activity which began in past and still continuing, we should use PRESENT PERFECT CONTINUOUS rather than simple present..

A BETTER WAY:-


Due to the slow-moving nature of tectonic plate movement, the oldest ocean crust is thought to date from the Jurassic period, is formed from huge fragments of the Earth's lithosphere and has been lasting for 200 million years.
OR
Due to the slow-moving nature of tectonic plate movement, the oldest ocean crust is thought to date from the Jurassic period and formed from huge fragments of the Earth's lithosphere, and has been lasting for 200 million years.






]Due to the slow-moving nature of tectonic plate movement, the oldest ocean crust is thought to date from the Jurassic period and formed from huge fragments of the Earth's lithosphere, and has been lasting for 200 million years

Can you please explain this construction.... Subject (is thought and formed),and has been ??? is it correct...


Like in this Q in which all cases Verb-ed modifier Jump above the verb and describe noun(if its a modifier)
If its not a verb-ed modifier Then construction will be Subject is thought,is formed and "is lasting 200 million years"...The quoted part seem wrong...DO help
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Re: Due to the slow-moving nature of tectonic plate movement [#permalink]

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New post 03 Apr 2017, 10:14
Do help me to resolve the doubts mentioned in the thread
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Re: Due to the slow-moving nature of tectonic plate movement [#permalink]

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New post 08 Apr 2017, 02:58
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VyshakhR1995 wrote:
Do help me to resolve the doubts mentioned in the thread


In my opinion the modifier "formed from huge fragments of the Earth’s lithosphere and lasting 200 million years" is misplaced. Such placement (end of the clause and separated by comma) is alright for verb modifiers referring to the action (verb) of the previous clause, but such construction for noun modifiers is not ideal.

Moreover note the wrong usage of "due to" in all the options - the correct usage is "because of" in this case.
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Due to the slow-moving nature of tectonic plate movement [#permalink]

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New post 14 May 2017, 16:51
akhil911 wrote:
Due to the slow-moving nature of tectonic plate movement, the oldest ocean crust is thought to date from the Jurassic period, formed from huge fragments of the Earth's lithosphere and lasted 200 million years.

(A) formed from huge fragments of the Earth's lithosphere and lasted 200 million years.

(B) forming from huge fragments of the Earth’s lithosphere and lasting 200 million years.

(C) forming from huge fragments of the Earth’s lithosphere and lasted 200 million years.

(D) formed from huge fragments of the Earth’s lithosphere and lasting 200 million years.

(E) formed from huge fragments of the Earth’s lithosphere and has been lasting 200 million years.

[Reveal] Spoiler:
Can someone help me on this question , I am not able to understand why the official answer given by veritas is correct and need more explanation.



Hi sayantanc2k,

I am confused with this question.

If the underlined portion is a modifier – modifying ‘the oldest ocean crust’ – then

1. can we use “form” and “last” is their participial form by joining them with an “and”? I did not think joining two participial modifier with an "and" is allowed.

2. If we, indeed, are allowed to join two participial modifier using an “and”, shouldn’t they be parallel – either “formed || lasted” or "forming || lasting”?

BUT

If the underlined portion is not a modifier, then is it not violating parallelism? A better way to parallel them would be “is thought to || was formed || and has been lasting”

What am I missing here?
Help would be greatly appreciated.

Regards
RzS
Due to the slow-moving nature of tectonic plate movement   [#permalink] 14 May 2017, 16:51

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