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Avery Island (historically French: Île Petite Anse) is a salt dome best known as the source of Tabasco sauce. Located in Iberia Parish, Louisiana , United States, it is about three miles (4.8 km) inland from Vermilion Bay , which opens onto the Gulf of Mexico .
" Salt mining, Avery Island, Louisiana". Date: 1933: Source: Geological Survey Bulletin 845 Guidebook of the Western United States: Part F. Southern Pacific Lines. Via online copy at : Author: United States Department of the Interior: Permission (Reusing this file)
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The Green Tree facility provides and stores, digitally and in microfilm (aperture cards), [4] over 182,000 maps of abandoned mines. This repository contains maps of mine workings from the 1790s to the present day. [5] It serves as a point of reference for mine maps and other information for both surface and underground mines throughout the ...
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Avery Island, three miles inland from the Louisiana coast, gave the Confederacy a huge supply of rock salt until the Union captured it. It was not realized at the time that there were structures similar to the Avery Island salt dome all along the Louisiana and Texas coasts of the Gulf of Mexico which could have provided an additional source of ...
The mine, in operation since 1919, was made up of several levels up to 1,500 feet (460 m) below the surface. Each tunnel was about 100 by 80 feet (30 m × 24 m). Pillars of salt had been left in place to support the ceiling at each level. The pillars were dissolved by the encroaching fresh water and caused the mine tunnels to collapse. [3]
A salt dome is a type of structural dome formed when salt (or other evaporite minerals) intrudes into overlying rocks in a process known as diapirism. Salt domes can have unique surface and subsurface structures, and they can be discovered using techniques such as seismic reflection .