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Original published in D.F. Merriam, ed., 1964, Symposium on cyclic sedimentation: Kansas Geological Survey, Bulletin 169, pp. 173-189 |
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Figure 4--Positive print (actual size) of a radiograph showing characteristics of laminations within medium-bedded units of Tonganoxie Sandstone Member of Stranger Formation. Dark laminae are defined by series of dots rather than solid layer, so many appear to be discontinuous and fade out laterally. Two zones of abnormally dark layers, however, can be traced laterally for more than 50 feet. Contacts between layers are characteristically indistinct and poorly defined. Specimen from Deitmans Crossing on south bank of Wakarusa River, NE NE sec. 14, T. 13 S., R. 20 E., Douglas County, Kansas. Technical factors: same as Figure 3. [Note: this image enlarged to show detail over the web, so this image is not actual size but is approx. 2x.]
