loss of precise detail.Little can be done to restore edge detailing short of the stone which is usually infeasible. Erosion: Erosion can be the result of general weathering described above, or it can be a more localized phenomenon based upon handling or exposure.Wind driven airborne abrasives may selectively wear away detailing on certain elevations, based upon the direction of prevailing winds.One of the few effective ways to address this problem is by landscaping where plantings and/or grade can deflect the wind.Such landscaping and/or grading may range from the simple and inexpensive up to a major and expensive intervention. It would have to be consistent with appropriate policy for the management of cultural landscapes.It may, however, be cost effective when considering the extended life of the stone. The symptoms of erosion can be as simple as the loss of edge sharpness as described above, or it can be very localized, specific wear due to contact with landscaping and mowing equipment. Localized damage due to contact by mowing or other maintenance equipment is preventable.Where there is evidence of recurrent physical damage, steps should be taken to protect the resource(s). Staining: Discoloration of the limestone, whether general or localized, is staining.Staining, may be the result of exposure to a variety of exterior substances or to internal occlusions in the stone or structural elements. Some of the most common types of staining and the causative agents are: Oil/grease stains:These stains are usually the result of vandalism or use.A variety of organic or inorganic oils may be absorbed into the stone upon
loss of precise detail.Little can be done to restore edge detailing short of the stone which is usually infeasible. Erosion: Erosion can be the result of general weathering described above, or it can be a more localized phenomenon based upon handling or exposure.Wind driven airborne abrasives may selectively wear away detailing on certain elevations, based upon the direction of prevailing winds.One of the few effective ways to address this problem is by landscaping where plantings and/or grade can deflect the wind.Such landscaping and/or grading may range from the simple and inexpensive up to a major and expensive intervention. It would have to be consistent with appropriate policy for the management of cultural landscapes.It may, however, be cost effective when considering the extended life of the stone. The symptoms of erosion can be as simple as the loss of edge sharpness as described above, or it can be very localized, specific wear due to contact with landscaping and mowing equipment. Localized damage due to contact by mowing or other maintenance equipment is preventable.Where there is evidence of recurrent physical damage, steps should be taken to protect the resource(s). Staining: Discoloration of the limestone, whether general or localized, is staining.Staining, may be the result of exposure to a variety of exterior substances or to internal occlusions in the stone or structural elements. Some of the most common types of staining and the causative agents are: Oil/grease stains:These stains are usually the result of vandalism or use.A variety of organic or inorganic oils may be absorbed into the stone upon