How to get the left and right haar measure as

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1. x^-2dxdy and x^-1dxdy are left haar measure and right haar measure respectively how?
 
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f(x) = x^-1 looks like a (left and right) Haar measure for the group of non-zero real numbers under multiplication since for each k > 0, a> 0, b> 0

\int_a^b \frac{1}{x} dx = \int_{ka}^{kb} \frac{1}{x} dx

You did not state your question clearly. Are you asking us to find a group for which the given function is a left or right Haar measure? Or have you been given some group for the functions that you mentioned and merely wish to know how to do the integration that tests whether the function is a Haar measure?
 
To solve this, I first used the units to work out that a= m* a/m, i.e. t=z/λ. This would allow you to determine the time duration within an interval section by section and then add this to the previous ones to obtain the age of the respective layer. However, this would require a constant thickness per year for each interval. However, since this is most likely not the case, my next consideration was that the age must be the integral of a 1/λ(z) function, which I cannot model.
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