Assertion: column's section | /r/HasProperty | single
Facets:
Source sentences:
text: title, indicating topic, general location, and whether the section is single (measured in one coherent course), composite (pieced from two or more section segments), averaged, or generalized; name(s) of geologist(s) and date of the survey; method of measurement; graphic scale; map or description of locality; major chronostratigraphic units, if known; lesser chronostratigraphic units, if known; names and boundaries of rock units; graphic column composed of standard lithologic patterns; unconformities; faults, with thickness of tectonic gaps, if known; covered intervals, as measured, positions of key beds; and positions of important samples, with number and perhaps data.