(1) There is no clear evidence to differentiate encrustation prior to molting from postmortem encrustation on the external surface of carapaces.(2) In the study of fossil populations, the timing of encrustation is important, although both encrustation during life or after death provides ecological and taphonomic data.(3) It contained nothing but sand and encrustation , so I left perplexed.(4) Although the quartz encrustation protects the calcite from dissolving, it obscures the twinned nature of the crystals, which is revealed by mechanical removal of the crust.(5) There is no microbial encrustation of the surface, as reported, for example, in Devonian palaeokarsts of the Canning Basin.(6) I had never seen such complete encrustation , and by big corals.(7) One corner of the quartz encrustation had been removed to show the underlying rhodochrosite.(8) It is not in question in this case as to whether that encrustation should be cut off.(9) For some microbes, initial encrustation involved the growth of small spheroids scattered irregularly along the length of the microbe.(10) I couldn't get over the stunning encrustation of the Munchen by soft corals at this depth, suggesting that the tide runs fast and hard over the wreck.(11) Pollutants in the atmosphere and the attentions of birds and humans cause discolouration, encrustation and corrosion.(12) Nuclear encrustation was present in case 2.(13) Its coral encrustation is so heavy that all the features of its breech-end are obscured, but around her sit the unmistakable shapes of unused shells, sitting in boxes like eggs.(14) Slight variations in the diameter along the length of some filaments reflect either the degree of silica encrustation or septa in the original filament.(15) But she did not test the entire area of that encrustation .(16) In all of these fossils, the symbiotic colony covers the entire external surface of a gastropod shell with a thick encrustation .
