. Bulletin of the Geological Society of America. Geology. Figure 2.—Diagrammatic Plan and Cross-section "lower" conglomerate must lie near or just below the bottom of the great open cut and the ore body would then coincide with the limestone. A synclinal trough of ore exposed in the De Smet cut is particularly inter- esting from a structural standpoint. It is suggested that this particular synclinal fold is but a minor one imposed on the western limb of the larger anticlinal referred to above. It pitches southward and the outcrop of its eastern limb should theoretically be traceable


. Bulletin of the Geological Society of America. Geology. Figure 2.—Diagrammatic Plan and Cross-section "lower" conglomerate must lie near or just below the bottom of the great open cut and the ore body would then coincide with the limestone. A synclinal trough of ore exposed in the De Smet cut is particularly inter- esting from a structural standpoint. It is suggested that this particular synclinal fold is but a minor one imposed on the western limb of the larger anticlinal referred to above. It pitches southward and the outcrop of its eastern limb should theoretically be traceable on the surface were it not interrupted by porphyry intrusives. It is believed at present that the fault cuts this fold and the larger anticlinal somewhat as illustrated in the purely diagrammatic figures on page 298. Such an interpretation accounts for all the facts at present Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Geological Society of America. [New York : The Society]


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Keywords: ., bookcentury1800, bookdecade1890, booksubjectgeology, bookyear1890