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Figure 2


Fig. 2. Morphology of Phragmatopoma californica cement following different treatments. (A-D) SEM views of untreated cement: adhesive footprint (A), zoom of dimpled surface (B), internal porosity revealed in fracture surface (C), and fracture surface with outer skin (D). (E-H) Comparable views of EDTA-treated cement: EDTA-treated cement deposit (E), zoom of dimpled surface following EDTA treatment (F), internal porosity of fractured cement that was broken prior to EDTA treatment (G), and internal porosity of cement fractured after EDTA treatment (H). (I). Energy dispersive X-ray spectroscopy of EDTA-treated (gray filled) and untreated cement (red trace).





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