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# Due to the slow-moving nature of tectonic plate movement

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

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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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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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08 Apr 2017, 02:58
1
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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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.

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

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10 May 2018, 21:18
egmat kindly clear this doubt. I have read in a blog by egmat that VErb-ed modifies can not jump over verbs.
https://gmatclub.com/forum/verb-ed-modi ... 58426.html
But in this question it does. It got me all confused. Kindly clarify.
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Re: Due to the slow-moving nature of tectonic plate movement  [#permalink]

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22 Jul 2018, 00:45
Raksat wrote:
egmat kindly clear this doubt. I have read in a blog by egmat that VErb-ed modifies can not jump over verbs.
https://gmatclub.com/forum/verb-ed-modi ... 58426.html
But in this question it does. It got me all confused. Kindly clarify.

Quote:
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.

This sentence is simple form of verb-ed & verb-ing modifier. And as it appears at the end of previous clause, so it modifies the whole preceding clause.
To modify whole preceding clause it should make sense with subject of sentence i.e. "ocean crust"

Modifier in option D is in active - passive voice and from parallelism prospective its is parallel and correct structure. Also to add, subject should make sense with these form of verb but it shouldn't be doer of those verb.

formed vs forming -- If we say "ocean crust formed..." then it is something like we are telling the act of forming has been done on "ocean crust" rather than ocean crust doing it. SO it modifies "ocean crust" correctly.
Suppose if we would have said "ocean crust forming...", then is means something like "ocean crust" is doing this act, which is not correct. Also it would be parallel to main verb and sentence would be incorrect in that case.

lasted vs lasting -- If we say "ocean crust lasted..." then it is something like "ocean crust" did the action of lasting. Whereas this verb should be parallel to other modifier and should act as modifier itself. So "lasting" would be better option. In this case it connects with subject and doesn't make that as doer of this action.

Hope this helps !
Re: Due to the slow-moving nature of tectonic plate movement &nbs [#permalink] 22 Jul 2018, 00:45

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