The recurrent 'sandy like' discharges in the patient were possibly the result of pressure necrosis of the epidermis caused by the underlying stones leading to micro perforations which were healing spontaneously.
The seas have scoured away the sand, exposing more and more of the underlying stones, then piling them up so that the pebble bank at the foot of the dunes is far steeper and almost twice as wide as normal, while at its base are great water-filled hollows several feet across.
Glaciers crawl across the rocky land, slowly grinding the underlying stone into a fine powder.
The boulders that loom in the shallows of Point Judith, R.I., are debris from the last ice age, having been scoured off the underlying stone some 12,000 years ago, only to be scattered, like so much construction rubble, when the ice retreated from the mouth of Narragansett Bay.
When George VI remains unconvinced of his fitness for the throne, Logue sits in King Edward's Chair and dismisses the underlying Stone of Scone as a trifle.
Therefore, investigating the mechanism underlying stone formation and identifying potential targets to prevent stone recurrence remains a priority.
However, ductal plate malformations, particularly the Caroli disease, have to be ruled out by the absence of specific features, such as the "central dot sign", dilated bile ducts associated with focal area of cystic ectasia, or the fact that no biliary dilatation can be found in LPAC syndrome without underlying biliary stones [14, 25].
Marjorie Hunt wrote in "The Stone Carvers: Master Craftsmen of Washington National Cathedral Smithsonian Institution Presss, 1999) that in a lifetime spent mastering the elements and underlying principles of stone carving, Mr. Palumbo was "like a child learning language".
The seaward end of the Wick breakwater was a block of concrete weighing more than eight hundred tons and bound with iron rods to underlying blocks of stone.
The blackish shades still observed after cleaning are likely to be pyrite or other impurities still present in the underlying pores in the stone.
In this case, the layer of repair material will try to adopt a strain but will be prevented from doing so by the thick underlying layer of original stone that will instead impose its strain and cause subsequent stresses in the repair.
