GK
WORLD GEOGRAPHY
| Question 
 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
 | 
 The platform and the basement rock together form 
|  |  craton 
 | 
|  |  shield 
 | 
|  |  both (a) and (b) 
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|  |  None of the above 
 | 
 Explanation: 
Detailed explanation-1: -In geology, a platform is a continental area covered by relatively flat or gently tilted, mainly sedimentary strata, which overlie a basement of consolidated igneous or metamorphic rocks of an earlier deformation. Platforms, shields and the basement rocks together constitute cratons.
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