Learn English Grammar From A–Z
- Pollutants in the atmosphere and the attentions of birds and humans cause discolouration, encrustation and corrosion.
- Slight variations in the diameter along the length of some filaments reflect either the degree of silica encrustation or septa in the original filament.
- For some microbes, initial encrustation involved the growth of small spheroids scattered irregularly along the length of the microbe.
- 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.
- 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.
- I had never seen such complete encrustation, and by big corals.
- This is a good time to do the famous Hispania dive and revel in the vivid orange coloration caused by its complete encrustation.
- 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.
- Nuclear encrustation was present in case 2.
- I was told they had examined incrustation work done by medieval guild amber workers to learn their secrets for adhesives and how to prepare amber by ‘clarification’ and by dying the amber.
- There is no microbial encrustation of the surface, as reported, for example, in Devonian palaeokarsts of the Canning Basin.
- There is no clear evidence to differentiate encrustation prior to molting from postmortem encrustation on the external surface of carapaces.
- It grows as a surface incrustation on gastropod shells inhabited by the hermit crab Pagurus longicarpus.
- A white incrustation called efflorescence is often found on the surface of interior masonry walls.
- The Great White Way is a comfortable walking passage with white encrustations covering much of the lower half of the walls.
- Most of the world's so-called petrifying springs deposit a sintery encrustation on objects immersed in them.
- Efflorescences are powdery encrustations of minerals that form on the surfaces of rocks by evaporation of their pore water.
- In all of these fossils, the symbiotic colony covers the entire external surface of a gastropod shell with a thick encrustation.
- These encrustations range in color from bright yellow and white to red to dark gray.
- Equally fascinated by the human figure and the materiality of oil paint, Leroy created dense compositions in which glimmers of imagery can be made out amid thick incrustations of pigment.
- Cuprite was found mainly as red encrustations associated with azurite and malachite on copper.
- The wine industry is the only source of tartrates available to commerce and the crystalline encrustations left inside fermentation vessels are therefore regularly scraped off for eventual commercial use after purification.
- Additional weak silicic solutions formed thin encrustations of quartz on the calcite in delicate encrustation pseudomorphs.
- They are also obviously granulated, but as with the fossil material it is unclear what substances are included in the encrustations.
- They can form thin encrustations, lumps, finger-like growths, or urn shapes.
- But she did not test the entire area of that encrustation.
- It contained nothing but sand and encrustation, so I left perplexed.
- It is not in question in this case as to whether that encrustation should be cut off.
- 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.
- One corner of the quartz encrustation had been removed to show the underlying rhodochrosite.