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I agree with Dugald Carmicheal, in this context, stratigraphic hanging wall means what was deposited on top of whatever is the reference point/layer, I presume an ore body. If the ore body is right side up, the stratigraphic hanging wall is also the structural hanging wall. Cheers, Herb Helmstaedt > The term "hanging wall" originated long ago (before 1500 CE) in > association with mining in Cornwall. A similar terms was used in German. > In this sense, it referred to an planar ore body that was "hanging" above > shaft. Commonly the ore bodies were associated with "normal faults", which > were the prevalent (aka "normal") type of fault in the Cornwall area. > > I can see, like you did, that this term "stratigraphic hanging wall" has > some usage. Perhaps the usage is related to ore geology, as suggested in > the last message. > Best, > Mark > > On Apr 4, 2014, at 9:19 AM, Pietari Skyttä <[log in to unmask]> > wrote: > >> Hi, >> >> Maybe it just refers to the stratigraphic position with respect to the >> observed/discussed unit or layer, similar to the usage in ore geology. >> >> Regards, >> Pietari >> >> >> Quoting Alex Brett <[log in to unmask]>: >> >>> I would expect this to be describing "fossil" faults - no longer active >>> but present in e.g. overturned sequences as a dislocation. Then >>> "stratigraphic hanging wall" would be the hanging wall in the sense of >>> the original stratigraphy, as opposed to in terms of the current >>> orientation of the sequence. >>> >>> Does that fit with the usages you've seen? >>> >>> Cheers >>> -a. >>> >>> On 04/04/2014 08:06, Riia Chmielowski wrote: >>>> Greetings, >>>> >>>> Can anyone clarify for me what is meant by the term "stratigraphic >>>> hangingwall"? A quick google search reveals many instances where the >>>> phrase is used, but I can't find a definition anywhere. The term looks >>>> odd to my eye, since I was taught that stratigraphy refers to the >>>> order in which a sequence of rocks (especially sedimentary) was >>>> deposited, and that a hangingwall is the set of rocks located above a >>>> given fault (e.g. those hanging overhead if one stands in a mine >>>> located along along the fault plane). Given those definitions I am at >>>> a loss as to what exactly is meant when the one is used as a modifier >>>> for the other. >>>> >>>> Thanks, >>>> >>>> --Riia >>>> >>>> ****************************************************** >>>> Riia M. Chmielowski >>>> Assistant Lecturer, LTU >>>> Email: [log in to unmask] >>>> Phone: +46 (0)920 492033 >>>> Mobile: +46 72-539 07 76 >>>> Fax: +46-920-491199 >>>> LTU Room: F833 >>>> http://ltu-se.academia.edu/RiiaChmielowski >>>> >>>> Postal address: >>>> Luleå University of Technology >>>> Department of Civil, Environmental and Natural Resources Engineering >>>> Division of Geosciences >>>> Riia M. Chmielowski >>>> SE-971 87 Luleå Sweden >>>> ****************************************************** >>>> >> >> >> >> Pietari Skyttä, PhD >> _________________________________________ >> University Lecturer >> Department of Geosciences and Geography >> P.O.Box 64 (Gustaf Hällströmin katu 2a) >> FI-00014 University of Helsinki >> >> Mobile +358-40-5445973 >> email: [log in to unmask] >> web: http://www.helsinki.fi/geo/index.html >> __________________________________________ >