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Oxide jacking has caused concrete spalling on walls of the Herbst Pavilion at Fort Mason Center in San Francisco. The expansive force of rusting, which may be called oxide jacking or rust burst, is a phenomenon that can cause damage to structures made of stone, masonry, concrete or ceramics, and reinforced with metal components.
The Walcott–Rust quarry, in Herkimer County, New York, is an excellent example of an obrution (rapid burial or "smothered") Lagerstätte. Unique preservation of trilobite appendages resulted from early consolidation (cementation) of the surrounding rock, followed by spar filling of the interior cavity within the appendages .
Rust is an iron oxide, a usually reddish-brown oxide formed by the reaction of iron and oxygen in the catalytic presence of water or air moisture.Rust consists of hydrous iron(III) oxides (Fe 2 O 3 ·nH 2 O) and iron(III) oxide-hydroxide (FeO(OH), Fe(OH) 3), and is typically associated with the corrosion of refined iron.
Wikipedia:Picture of the day is an image which is automatically updated each day with an image from the list of featured pictures. The {{ POTD }} template produces the image shown above. Category:Wikipedia Picture of the day lists the different templates that can be used.
The Ica stones are engraved with various types of images. Some images are directly incised whereas others have been made by removing the background, leaving the image in relief . The images vary from simple pictures on one side of a pebble to designs of great complexity.
The largest and most noted of the stones is the Ardre VIII stone, dated to the 8th [2] or 9th century, depicts scenes from Norse mythology, notably the Lay of Weyland the smith, Thor fishing for Jörmungandr, the punishment of Loki for the death of Baldr, [3] and Odin riding to Valhalla on Sleipnir.
Rust converters are chemical solutions or primers that can be applied directly to an iron or iron alloy surface to convert iron oxides into a protective chemical barrier. These compounds interact with iron oxides, especially iron(III) oxide , converting them into an adherent black layer ( black oxide ) that is more resistant to moisture and ...
Imageability is a measure of how easily a physical object, word or environment will evoke a clear mental image in the mind of any person observing it. [1] [2] It is used in architecture and city planning, in psycholinguistics, [3] and in automated computer vision research. [4]