. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. Figures 14-17. Scanning electron micrographs of semi-nacre in the tubuliporine Plittonca sloechas. Figure 14. Semi-nacreous fabric near a broken edge of an interior wall. Note screw dislocations, differential etching of tablets, revealing their sectored substructure and spikes predominantly associated with the less- soluble sectors. Scale bar = 6 ^m. Figure 15. Detail of etched tablets that have undergone screw dislocation. Note the parallel alignment of sectors in different layers of the screw dislocations as well as betwee


. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. Figures 14-17. Scanning electron micrographs of semi-nacre in the tubuliporine Plittonca sloechas. Figure 14. Semi-nacreous fabric near a broken edge of an interior wall. Note screw dislocations, differential etching of tablets, revealing their sectored substructure and spikes predominantly associated with the less- soluble sectors. Scale bar = 6 ^m. Figure 15. Detail of etched tablets that have undergone screw dislocation. Note the parallel alignment of sectors in different layers of the screw dislocations as well as between adjacent screws, perhaps indicating crystallographic continuity. The more-soluble sectors are narrower than their less-soluble neighbors and have edges with different slope angles. Scale bar = ^m. Figure 16. Heavily etched tablet showing differentiation of less-soluble and more-soluble sectors. The broader, less-soluble sectors meet at the center of the tablet with a trilete suture. Growth lines and perpendicular striations are most clearly seen on the less-soluble sectors. Scale bar is 2 Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Marine Biological Laboratory (Woods Hole, Mass. ); Marine Biological Laboratory (Woods Hole, Mass. ). Annual report 1907/08-1952; Lillie, Frank Rattray, 1870-1947; Moore, Carl Richard, 1892-; Redfield, Alfred Clarence, 1890-1983. Woods Hole, Mass. : Marine Biological Laboratory


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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology