On the origin of native sulfur deposits in Gebel El Zeit, Gulf of Suez, Egypt

1994 ◽  
Vol 9 (2) ◽  
pp. 223-232 ◽  
Author(s):  
G. Philip ◽  
A. M. A. Wali ◽  
M. A. M. Aref
Geofluids ◽  
2018 ◽  
Vol 2018 ◽  
pp. 1-16 ◽  
Author(s):  
E. P. Shevko ◽  
S. B. Bortnikova ◽  
N. A. Abrosimova ◽  
V. S. Kamenetsky ◽  
S. P. Bortnikova ◽  
...  

Native sulfur deposits on fumarolic fields at Ebeko volcano (Northern Kuriles, Russia) are enriched in chalcophile elements (As-Sb-Se-Te-Hg-Cu) and contain rare heavy metal sulfides (Ag2S, HgS, and CuS), native metal alloys (Au2Pd), and some other low-solubility minerals (CaWO4, BaSO4). Sulfur incrustations are impregnated with numerous particles of fresh and altered andesite groundmass and phenocrysts (pyroxene, magnetite) as well as secondary minerals, such as opal, alunite, and abundant octahedral pyrite crystals. The comparison of elemental abundances in sulfur and unaltered rocks (andesite) demonstrated that rock-forming elements (Ca, K, Fe, Mn, and Ti) and other lithophile and chalcophile elements are mainly transported by fumarolic gas as aerosol particles, whereas semimetals (As, Sb, Se, and Te), halogens (Br and I), and Hg are likely transported as volatile species, even at temperatures slightly above 100°C. The presence of rare sulfides (Ag2S, CuS, and HgS) together with abundant FeS2 in low-temperature fumarolic environments can be explained by the hydrochloric leaching of rock particles followed by the precipitation of low-solubility sulfides induced by the reaction of acid solutions with H2S at ambient temperatures. The elemental composition of native sulfur can be used to qualitatively estimate elemental abundances in low-temperature fumarolic gases.


2019 ◽  
Vol 10 ◽  
Author(s):  
Amanda L. Labrado ◽  
Benjamin Brunner ◽  
Stefano M. Bernasconi ◽  
Jörn Peckmann

1972 ◽  
Vol 14 (8) ◽  
pp. 880-886 ◽  
Author(s):  
I.P. Aver'yanov ◽  
D.P. Zhizhin ◽  
I.I. Tyutrin

Resources ◽  
2021 ◽  
Vol 10 (4) ◽  
pp. 30
Author(s):  
Edyta Sermet ◽  
Marek Nieć

The sterilization of mineral resources makes considerable amounts inaccessible for future use and may be a barrier to the free supply of commodities. During the exploitation of mineral deposits, some parts of their resources become sterilized as inaccessible because of natural hazards or unfavorable economic conditions. Not mining land use and the social opposition against mining is the purpose of sterilization of considerable demonstrated mineral resources of deposits not yet engaged in exploitation. The native sulfur deposits in Poland are a good example of such “not mining” sterilization, which makes a considerable part of known resources inaccessible. On the northern border of the Carpathian Foredeep within the Miocene gypsum formation, the systematic exploration had demonstrated about 1 billion tons of sulfur resources located in the deposits of varied dimensions. The sulfur opencast mining and underground melting (the modified Frasch method) flourished from 1958 up to 1993. The increasing sulfur supply, recoverable from hydrocarbons, caused the closing down of sulfur mines, leaving a place with considerable untouched resources. About 67% of sulfur resources left by closed mines and of other explored but not exploited deposits are sterilized by the advancement of settlements, industrial plants, road construction, and by social opposition against mining.


2014 ◽  
Author(s):  
Mohamed S El-Hateel ◽  
Parvez Ahmad ◽  
Ahmed Hesham A Ismail ◽  
Islam A M Henaish ◽  
Ahmed Ashraf

2016 ◽  
Vol 20 (4) ◽  
pp. 61-68
Author(s):  
Mohamed H. Yassien ◽  
Mohsen S. Hussein ◽  
Ahmed G. A. Gewida

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