The Quarterly journal of the Geological Society of London . A. Red as in Fig. 2. Fig. 4.—Section of the Marine Satids and Cyrena Clay,resting on the Red Sandstone, at C. 2. Clay. J Sands. a. Gravel, with Ovsters,Sharks teeth,&x Carboniferous sandstoneand shales. 1854.] HAMILTON MAYENCE BASIN. 259 cipally derived; and, although the distinction between them was atone time overlooked, these underlying sandstones are mineralogicallydistinct from the tertiary sands and sandstones. The former aregenerally thin-bedded, micaceous, and interstratified with bands
The Quarterly journal of the Geological Society of London . A. Red as in Fig. 2. Fig. 4.—Section of the Marine Satids and Cyrena Clay,resting on the Red Sandstone, at C. 2. Clay. J Sands. a. Gravel, with Ovsters,Sharks teeth,&x Carboniferous sandstoneand shales. 1854.] HAMILTON MAYENCE BASIN. 259 cipally derived; and, although the distinction between them was atone time overlooked, these underlying sandstones are mineralogicallydistinct from the tertiary sands and sandstones. The former aregenerally thin-bedded, micaceous, and interstratified with bands ofblack argillaceous shale; and I have never seen or heard of anyfossil remains having been found in them. Of the Sections, that ofWeinheim, fig. 4, p. 258, is the most complete. In this section, Ashows the Carboniferous sandstone, separated by thin bands of blackargillaceous shale; in which no organic remains could be places it is much shattered, and traversed by faults and is overlaid by the Marine Sand (B. 1 a), which is the lowestmember of the tertiary formation of the district. We have here abundant evidence that the Carboniferous or redsandstones form the base
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Keywords: ., bookcentury1800, bookdecade1840, booksubjectgeology, bookyear1845
