An attempt to correlate the Pennsylvanian sandstones of the Havana quadrangle by the composition and structure of their grains
Brief description of stratigraphy of Pennsylvanian strata in Havana Quadrangle; general lithology of sandstone members; generalized columnar section. Localities from which samples were collected. Outline of procedure: 1) Preliminary macroscopic examination; 2) mechanical analyses to determine grain size and shape; 3) mineral analyses, consisting of study of light and heavy fractions, the distinguishing character and heavy fractions, the distinguishing characteristics of mineral species, and percentages present. Pyramidal diagrams show size analyses.
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