On Friday, April 04, 2014 3:19 PM Pietari wrote:
>Maybe it just refers to the stratigraphic position with respect to the
>observed/discussed unit or layer, similar to the usage in ore geology.
Thanks Pietari! That is, in fact the usage I was seeing in the literature, but I didn't know what they meant by it. I am assuming that you mean "current stratigraphic position" e.g. what is currently above the ore body (or whatever the reference layer might be if it is use in another context) for the stratigraphic hanging wall, and what is currently under it for the stratigraphic footwall? In this context is there any implication or requirement that there is a fault present as well as the observed/discussed unit or layer? Do you (or anyone) have any idea why this term came into use, instead of simply saying something like "the rocks overlying the deposit are..."?
Thanks for the other replies--it is comforting to know I am not the only one who didn't know this term. Mark, I appreciate the history--I knew it was an old term, but had long since forgotten the part about Cornwall, assuming my undergrad teachers mentioned it.
Cheers,
--Riia
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Riia M. Chmielowski
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