[2nsdammit]

Well, that's in keeping with the lack of integrity issue I often see in Genesisists.... Nice use of ellipse.

My original statement was "So your mapping was all surface contours, or soil related." Pretty sure the "soil-related" part pretty much covers your '30 to 60 feet of overburden'.

I'll ask again - ever done any mapping of deep deposits, say related to oil exploration? Ever done any geological field work, preparing geologic stratigraphic columns like the one I posted?

[editor-surveyor]

Some of the quarry studies can involve pretty good depth, but nothing like Petro. I have a party chief that is an experienced expert in petro, so I don't need to sweat that area; he's been handling it for 20 years or more. He worked for Sisemic prior to coming out here.