How can I format my OS X partition while running Boot Camp?

A while ago my Mac partition became corrupted when I shut it down mid-startup. I have been trapped on my Windows partition on my computer ever since. I have tried everything possible on my recovery drive. When given the option to reinstall mavericks, the partition wouldn't show up as an available drive. It wouldn't let me erase the my original Mac partition since it "couldn't open disk." I'm running out of options here and I'm not really sure where to go from here? Any help would be greatly appreciated.

Erase the entire drive and reinstall everything. Boot from the Recovery Partition and use Disk Utility from there, then you can reinstall Mavericks, also from Recovery.

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