Marble like all calcareous rocks is particularly sensitive to degradation by acid chemicals and to weathering.
Would weathering affect marble sculpture.
Water ice acids salts plants animals and changes in temperature are all agents of weathering.
Authentication weathering and provenance determinations stanley v.
Acid rains are one of the main degradation agents for marble artifacts.
In exposed areas of buildings and statues we see roughened surfaces removal of material and loss of carved details.
Acid rain contains carbonic nitric and sulfuric acid that are produced by oxidation and dissolution in water of gaseous oxides co 2 no 2 and so 2 present in the air as chemical pollutants.
The word weather is most commonly used to refer to the state of the atmosphere at a certain time.
Weathering layers and the authentication of marble objects richard newman.
Why do you think the same word is used to refer to the breakdown of rocks.
When sulfurous sulfuric and nitric acids in polluted air and rain react with the calcite in marble and limestone the calcite dissolves.
If the marble sculpture is not in a climate controlled environment it would be affected by a limited amount of weathering yes.
Would weathering affect a marble sculpture inside a museum.
Why do you think the same word is used to refer to the breakdown of rocks.
Weathering processes depend upon the pres ence of water the temperature the mineral composition of the rock and its chemical com position.
Would weathering affect a marble sculpture inside a museum.
The results of the two case studies indicate that acid rain attack played a very minor role in the weathering of marble and bronze outdoor sculpture compared to dry deposition in the 1980 s.
Headstones are subjected to weath.
Moreover rain acidity has been dropping since then nadp 2014.
Weathering affect the rate of chemical weathering.
If the marble sculpture is not in a climate controlled environment it would be affected by a limited amount of weathering yes.
Weathering describes the breaking down or dissolving of rocks and minerals on the surface of the earth.
The sculpture would be protected from rain heat and wind.
Stone surface material may be lost all over or only in spots that are more reactive.
Weathering processes on headstones and monuments alison tymon march 2012 weathering is defined as the breakdown of rock in situ that is without being moved.
Margolis and william showers.
Ancient greek and roman marble sculpture.