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Mineral Resources Potential - Geothermal Resources

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1 I<br />

Industrial Mjnorah '1 59<br />

(barium sulfate). Hydrogen sulfide is the gas respomible for the<br />

odor of rotten eggs. It accurs naturally in volcanic emissions, such<br />

as from hydrothemat vents, and from bacterial action ofl decaying<br />

sulfur-containing orgauic matter.<br />

Applications<br />

Sulfur has rnany industrial uses. Through its major derivative,<br />

sulfuric and (&SO4), sulfur mpks as one of the more important<br />

elements used as an industrial raw material. It is of prime<br />

impo&ce to every sector of the world's economies, Sulfuric acid<br />

I<br />

I<br />

production is the major end use for sulfur, and consumption of<br />

sulfuric acid has been regarded as olie of the best indices of a<br />

nation's industrial development. More sulfuric acid is produced in<br />

the United States every year than any other industrid chemical.<br />

Sulfur is dso used in batteries, detergents, the vulcanimtion of<br />

rubber, fungicides, and in the manufacture of phosphate fertilizers.<br />

Sulfiks are used to bleach paper and as a preservative in wine and<br />

dried hit. Because of its flammable nature, sulfur dm finds use in<br />

matches, gunpowder, and fireworks. Sodium or ammonium<br />

thiosulhte is used as photographic fixing agents (Noetstaller,<br />

I 1988).<br />

There are small and scattered occurrences of native sulfur in the<br />

sediments and associated volcanic activities of the Rift Valley and<br />

in Danakil Depression. All are solfhtara-type associated with<br />

fmambs and crater deposits. The Danakil Depression resource at<br />

Zariga, north of Dallol, and on-mlol hill are estimated at 0.36 Mt<br />

at a grade of 5&55% sulfur. Anothk resource west of Dallol, on<br />

the road to Musley and Chebret Ale-crater, was reported to contain<br />

0.2 and 7 million tons at a &e of I&20% and 900? sulphw<br />

' respectively (EGS, 1989). There are various sulfur deposits in the wfl<br />

D-l Depression and mud Dofan deposit in the central rift

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