Find all School-related info fast with the new School-Specific MBA Forum

 It is currently 31 Aug 2016, 21:02

### GMAT Club Daily Prep

#### Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

# Events & Promotions

###### Events & Promotions in June
Open Detailed Calendar

# Determining the authenticity of purported pre-Columbian

Author Message
TAGS:

### Hide Tags

SVP
Joined: 17 Feb 2010
Posts: 1558
Followers: 17

Kudos [?]: 501 [0], given: 6

Determining the authenticity of purported pre-Columbian [#permalink]

### Show Tags

10 Mar 2010, 07:37
00:00

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 4 sessions

### HideShow timer Statistics

Determining the authenticity of purported pre-Columbian artifacts is never easy. Carbon-14 dating of these artifacts is often impossible due to contamination by radioactive palladium (which occurs naturally in the soils of Central and South America). However, historians and anthropologists have evolved two reliable criteria, which, utilized in combination, have proven effective for dating these artifacts. First, because authentic pre-Columbian artifacts characteristically occur in a coarse, granular matrix that is shifted by major earthquakes, they often exhibit the unique scratch patterns known as gridding. In addition, true pre-Columbian artifacts show a darkening in surface color that is caused by centuries of exposure to the minute amounts of magnesium in the soil of the Americas.

The criteria above would be LEAST useful in judging the authenticity of which of the following?

(A) An ax head of black obsidian, unearthed from a kitchen midden
(B) A pottery bowl with a red ocher design, found in the ruins of a temple
(C) A set of gold ear weights, ornamented with jasper pendants
(D) A black feather cape from a king’s burial vault
(E) A multicolored woven sash found near the gravesite of a slave

Why the answer cannot be (E). Please provide explanation for other options also. I want to understand if I was applying the right logic in eliminating options.
Manager
Joined: 29 Oct 2009
Posts: 202
Concentration: General Management, Sustainability
WE: Consulting (Computer Software)
Followers: 2

Kudos [?]: 80 [2] , given: 12

Re: CR - Authenticity of purported pre-Columbian artifacts [#permalink]

### Show Tags

10 Mar 2010, 10:46
2
KUDOS
I have eliminated A,B,C because all of them are either metal or pottery.
Now between D and E, both are cloth and seems to be answers.

But when I reread the passage "true pre-Columbian artifacts show a darkening in surface color that is caused by centuries of exposure to the minute amounts of
magnesium in the soil of the Americas", it says that the cloth should be exposed to the soil. This is the point.

So D is the answer. Because black feather cape inside the burial vault would have no exposure the the soil. And so this method is not effective in Determining the authenticity.
SVP
Joined: 17 Feb 2010
Posts: 1558
Followers: 17

Kudos [?]: 501 [0], given: 6

Re: CR - Authenticity of purported pre-Columbian artifacts [#permalink]

### Show Tags

10 Mar 2010, 10:53
Good catch...

OA is (D).

+1 to you.
Intern
Joined: 24 Nov 2011
Posts: 4
Followers: 0

Kudos [?]: 0 [0], given: 2

Re: Determining the authenticity of purported pre-Columbian [#permalink]

### Show Tags

03 Jan 2012, 22:56
Wow, nice catch. I need to remember to reread carefully when left with two possible answers.
Senior Manager
Joined: 13 Aug 2010
Posts: 314
Followers: 1

Kudos [?]: 18 [0], given: 1

Re: Determining the authenticity of purported pre-Columbian [#permalink]

### Show Tags

04 Jan 2012, 04:27
straight D
Director
Joined: 28 Jul 2011
Posts: 563
Location: United States
GPA: 3.86
WE: Accounting (Commercial Banking)
Followers: 2

Kudos [?]: 182 [0], given: 16

Re: Determining the authenticity of purported pre-Columbian [#permalink]

### Show Tags

04 Jan 2012, 06:13
Good catch
_________________

Re: Determining the authenticity of purported pre-Columbian   [#permalink] 04 Jan 2012, 06:13
Similar topics Replies Last post
Similar
Topics:
51 Determining the authenticity of purported pre-Columbian 45 14 Jul 2008, 08:04
2 Determining the authenticity of purported pre-Columbian 2 29 Jan 2008, 06:27
Determining the authenticity of purported pre-Columbian 3 10 Dec 2007, 17:03
Determining the authenticity of purported pre-Columbian 8 15 Mar 2007, 16:38
Determining the authenticity of purported pre-Columbian 8 08 Sep 2006, 23:23
Display posts from previous: Sort by