V olcanic Deposits of Elemental Sulphur

ELEMENTAL sulphur occurs in three types of deposits: in salt domes in the Gulf Coast region of the United States and Mexico, from which over 90 per cent of world native-sulphur production is obtained; in sedimentary deposits such as those in Sicily, which are thought by some authorities to contain the largest world reserves of elemental sulphur; and as surface deposits, associated now or in the past with some phase of vulcanism, the type which bas the greatest world-wide distribution.
Keywords: Cody, Wyoming, country rock, Ecuador, Sulphur Greenish-coloured, vulcanism, Deposition, Deposits, Ore, Rock, Rocks, sulphur, Volcanic, Volcanics
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