Origin Of Stones Research Articles

Origin of the Stone Varieties used in the Cultural Heritage Buildings of Lumbarda, Island of Korčula, Croatia

The aim of this paper is to determine the possible origin of the stone used for the construction in five cultural heritage buildings dating from the different historical epochs in Lumbarda, on the island of Korcula, Croatia. Micropetrographic determination of limestone samples taken from the Roman Villae Rusticae, the old apse of St Križ Church, the Venetian Tower, the Bishop’s Summer House and St Barbara Church, was done. For comparison, micropetrographic analysis on the rock samples taken from two abandoned quarries near Lumbarda: the Brendana Quarry in Lumbarda and Gornja Spilja Quarry at Sutvara islet, was also made. After comparison of their petrographic characteristics, it was concluded that the stone for construction of the Roman Villae Rusticae and St Križ Church was quarried in Brendana Quarry, while for the other three investigated buildings the material was quarried on Sutvara islet in Gornja Spilja Quarry.Accordingly, petrographic analysis proved to be useful tool for determination of the origin of stone and useful for restoration purposes.

Origin of Stone and Iron Meteorites

THE question arises whether meteorites in general have had a common origin, and in particular whether the stone meteorites have had an origin different from that of the iron meteorites. One line of experimentation bearing on this problem is the determination of cosmic-ray exposure ages of meteorites. If the total content of a stable cosmogenic nuclide is measured, and if its rate of production can be determined, then the length of exposure to the radiation is known.

ON THE RELATION BETWEEN THE VARIETY OF MICRO-ORGANISMS AND THE COMPOSITION OF STONE IN CALCULOUS PYELONEPHRITIS.

No subject in renal diseases has been more discussed than calculus, especially as regards the etiologic factors involved in the production of the stone. Many theories have been held regarding the origin of stone in nephrolithiasis, but of these most have been finally abandoned from insufficient evidence; thus the idea that telluric conditions play an important role in this connection has been practically abandoned by all, as also the belief that gout was the most important etiologic factor in the development of such a condition, while Senator, Von Noorden and numerous other observers have definitely shown that the method of living and the variety of diet play, speaking generally, but a small part. Our ideas regarding the formation of uric acid in the body have undergone a marked change, through the work of Horbaczewski and Kossel, who showed that in a large number of cases, at least, the uric acid

XI. On the origin of stones that have fallen from the atmosphere

XI. <i>On the origin of stones that have fallen from the atmosphere</i>

XXIV. Some conjectures respecting the origin of stones which have been observed to fall from the clouds

XXIV. <i>Some conjectures respecting the origin of stones which have been observed to fall from the clouds</i>