Can anyone help me identify and analyse some of the peaks here in Raman Spectroscopy data of exfoliated graphene?

I have a 2D peak shift of almost 40cm-1 when compared to my base graphite flake and my 2d peak resembles 3 layer graphene with a 12d/ig of 0.7 . (correct me if im wrong)

There is a high intensity d peak and also d+g peak on 2920 which resembles high basal and edge defects or disorderliness (correct me if im wrong).

I can find a peak around 2311cm-1 before 2D peak. what does this peak resemble. I have a high intensity shown for this peak. what does this mean. ?

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