. Acadian geology [microform] : the geological structure, organic remains and mineral resources of Nova Scotia, New Brunswick and Prince Edward Island. Geology; Paleontology; Geology; Geology; Geologie; Paléontologie; Géologie; Géologie. I I II I f I I ! 410 THE CARHONIFKHOUS BVSTKM. do»il)lc{] up. Somo beds alno sccin to contain ono spccios of plsxnt only, all otlicrs being oxcludi-'d; of this we liiivc a striking cxiuii|ile in tiie argillaceous slialo (No. 00): in tlie top of this beil, through a thicktu'.ss of three inelu'S, we liiid , ])iled up layer above layer, f
. Acadian geology [microform] : the geological structure, organic remains and mineral resources of Nova Scotia, New Brunswick and Prince Edward Island. Geology; Paleontology; Geology; Geology; Geologie; Paléontologie; Géologie; Géologie. I I II I f I I ! 410 THE CARHONIFKHOUS BVSTKM. do»il)lc{] up. Somo beds alno sccin to contain ono spccios of plsxnt only, all otlicrs being oxcludi-'d; of this we liiivc a striking cxiuii|ile in tiie argillaceous slialo (No. 00): in tlie top of this beil, through a thicktu'.ss of three inelu'S, we liiid , ])iled up layer above layer, from the base of the eliff to the crop of the bed— a distance of 200 feet—clearly proving that those plants grew on the ; This description niny give the reader some idea of the abun- dance and perfection of the fossil vegetation preserved in tlie Sydney Coal measures. As already stated also, a bed of sbale in the Sydney section has affinded the finest example yet known of carboniferous rain- marks. These occur in a bed at the top of one of those bands in whicli the sandstones are rippled and fossils rare. At some distance below it there are mussel shales, and ten feet above a stigmaria undcrelay and coal. These marks then were preserved iii beds formed during the transition from aquatic to terrestrial conilitions, by the silting up of a lagoon or creek, and most probably on a bed daily left dry at low tide. In a previous chapter mention was made of the curious footprints called Itusichnites, as occurring in the Ijowcr Carboniferous. In the Cape IJrcton Coal-field an interesting species occurs in the Coal meas- ures (Fig. 157). The specimen from which the figure was taken was kindly presented to me by R. Brown, Esq. Fig. li)7.—Hitslchnitca Ac<—ihn\::on. Each impression consists of the casts of contiguous rounded furrows, each about one-eighth of an inch in breadth, and crossed by curved .r. Please note that these images are extracted from scanned
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Keywords: ., boo, bookcentury1800, booksubjectgeology, booksubjectpaleontology
