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"a, the massive; b, the shaly; c, the laminated; d, e, and f, the compound or irregularly bedded." -Dana, 1880

Structure of Layers

"a, the massive; b, the shaly; c, the laminated; d, e, and f, the compound or irregularly bedded." -Dana,…

A section of the Paleozoic rocks found in the Mississppi basin illustrating the periods and ages.

Paleozoic Rocks

A section of the Paleozoic rocks found in the Mississppi basin illustrating the periods and ages.

Simple or surface springs: (d) stratum, (e) clay, (c) pervious bed, (a) strata, (b) valley.

Simple Springs

Simple or surface springs: (d) stratum, (e) clay, (c) pervious bed, (a) strata, (b) valley.

(1) sandstone, (2) Gray Band, (3) greenish shale, (4) compact limestone, (5) greenish shale, (6) limestone, (7) shale, (8) limestone.

Stratification

(1) sandstone, (2) Gray Band, (3) greenish shale, (4) compact limestone, (5) greenish shale, (6) limestone,…