Discovery of a pure rhenium mineral at Kudriavy volcano

Korzhinsky, M.; Tkachenko, Sergey I.; Shmulovich, K. I.; Taran, Yuri; Steinberg, G. S.

doi:10.1038/369051a0

Cited by 127 publications

(52 citation statements)

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“…It is only the second known occur-fumaroles at Kudriavy volcano (Korzhinsky et al 1994, Yudovskaya et al 2006. (Volborth & Housley 1984, Volborth et al 1986, Tarkian et al 1991 (Kojonen et al 2004).…”

Section: (Traduit Par La Rédaction)mentioning

confidence: 99%

“…It was first found in fumaroles on Usu volcano (Bernard & Dumortier 1986), but Re mineralization was destroyed during eruptive activity in 2000. Rheniite occurs as a fumarolic sublimate in Kudriavy volcano, Kurile islands (Korzhinsky et al 1994, Tessalina et al 2005, Znamensky et al 2005.…”

Section: (Traduit Par La Rédaction)mentioning

confidence: 99%

“…The hightemperature deposition of molybdenite and rheniite at the Kudriavy volcano is accompanied by cadmoindite (CdIn 2 S 4 ), kudriavite [(Cd,Pb)Bi 2 S 4 ], wurtzite (ZnS), pyrite (FeS 2 ), cannizzarite (Pb 4 Bi 6 S 13 ), various oxides, including powellite (CaMoO 4 ), molybdite (MoO 3 ), and ilsemannite (Mo 3 O 8 •nH 2 O), native alloys and elements, and chlorides (Korzhinsky et al 1994, Taran et al 1995, Chaplygin et al 2004, Tessalina et al 2005, Znamensky et al 2005, Yudovskaya et al 2006. According to Chaplygin et al (2005Chaplygin et al ( , 2007, there are two layers of high-temperature fumarolic incrustation (about 400°C) that formed during cooling of the gas on the surface of the altered basaltic andesite debris: the upper layer (up to 20 cm) consists of secondary sulfates and oxides with relics of minerals of the original rock; the lower sulfide-rich layer (up to 0.5 m) contains pyrite, galena, molybdenite, Cd-bearing sulfosalts of Pb and Bi (e.g., kudriavite, cannizzarite, lillianite), sphalerite, wurtzite, greenockite and rare minerals, such as cadmoindite, native gold and rheniite.…”

Section: Mechanism For the Deposition Of Rementioning

confidence: 99%

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RHENIUM-RICH MOLYBDENITE AND RHENIITE IN THE PAGONI RACHI Mo-Cu-Te-Ag-Au PROSPECT, NORTHERN GREECE: IMPLICATIONS FOR THE Re GEOCHEMISTRY OF PORPHYRY-STYLE Cu-Mo AND Mo MINERALIZATION

Voudouris¹,

Melfos²,

Spry³

et al. 2009

The Canadian Mineralogist

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The porphyry-type Pagoni Rachi Mo-Cu-Te-Ag-Au prospect, in northern Greece, is a porphyry-epithermal system hosted by an Oligocene dacite porphyry and quartz-feldspar porphyry dikes. The rare mineral rheniite (ReS 2 ) and molybdenite, with very high contents of Re (up to 4.7 wt% Re), occur in quartz veins along with Fe-Cu sulfides, Pb-, Sn-, and Cl-bearing oxides, hematite, ilmenite and tellurides of Bi; these veins are spatially related to sericitic and transitional sericitic-sodic-potassic alteration. Earlier-formed gold-bearing quartz and magnetite veins with sodic-potassic-calcic alteration and late precious-metal telluride-rich carbonate-quartz veins with argillic alteration contain only minor amounts of molybdenite. The composition of rheniite ranges from almost pure, stoichiometric rheniite with low Mo content to rheniite with up to 5.99 wt% Mo. Petrographic, scanning electron microscope, and structural studies suggest that the high Re content of molybdenite from Pagoni Rachi is the result of the isovalent Re-for-Mo substitution in molybdenite. This fact is corroborated by the progressive shortening of the Mo-S mean bond-distance (from 2.414 Å in pure molybdenite to 2.355 Å), as well as by the isotropic decrease of the unit-cell values with the increase of the Re:Mo ratio. The structural analysis of four molybdenite crystals, with the highest Re content ever reported in nature, demonstrates that they crystallize as the 2H polytype and not the 3R polytype, as previously hypothesized, thus suggesting that Re concentration does not correlate with a specific polytype. The fluid inclusions in quartz in the Re-bearing molybdenite-rheniite veins at Pagoni Rachi show that they homogenize to either the liquid or vapor phases (354 to 428°C) or by halite dissolution at 317 to 585°C, which equates to salinities of 40 to 59 wt% NaCl equiv. Rheniite and molybdenite likely precipitated as temperatures fell below 400°C during phase separation under relatively oxidizing conditions, at elevated chlorine activity, and from relatively acid hydrothermal solutions. However, the presence of Pb oxides, Sn-bearing minerals and tellurides § E-mail address: voudouris@geol.uoa.gr 1014 thE CanaDian MinERalogist is compelling evidence that rheniite and Re-rich molybdenite may have formed directly from the vapor as sublimates, in a manner similar to the way they are deposited at the Kudriavy volcano, Kurile Islands.Keywords: porphyry-epithermal deposit, rheniite, Re-rich molybdenite, polytype, phase separation, tellurides, sublimates, Pagoni Rachi, Greece.soMMaiRE L'indice minéralisé en Mo-Cu-Te-Ag-Au de Pagoni Rachi, de type porphyre, situé dans le nord de la Grèce, est un système épithermal encaissé par un porphyre dacitique oligocène et des filons de porphyre quartzofeldspathique. Nous y avons trouvé la rhéniïte (ReS 2 ), espèce rare, et la molybdénite très enrichie en Re (jusqu'à 4.7% Re, poids), dans des veines de quartz avec des sulfures de Fe-Cu, des oxydes contenant Pb, Sn, et Cl, l'hématite, l'ilménite et des tellurure...

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Section: (Traduit Par La Rédaction)mentioning

confidence: 99%

Section: (Traduit Par La Rédaction)mentioning

confidence: 99%

Section: Mechanism For the Deposition Of Rementioning

confidence: 99%

See 1 more Smart Citation

RHENIUM-RICH MOLYBDENITE AND RHENIITE IN THE PAGONI RACHI Mo-Cu-Te-Ag-Au PROSPECT, NORTHERN GREECE: IMPLICATIONS FOR THE Re GEOCHEMISTRY OF PORPHYRY-STYLE Cu-Mo AND Mo MINERALIZATION

Voudouris¹,

Melfos²,

Spry³

et al. 2009

The Canadian Mineralogist

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“…5. Максимальная высота пепловых выбросов вулкана Чиринкотан в 2017 г., по данным спутника деятельности: максимальная температура газов превышает 900°С, что способствует формиро-ванию здесь редкометалльной минерализации (Данченко и др., 1999;Korzhinsky et al, 1994). Исторические извержения на вулкане проис-ходили в 1778-1779(?…”

Section: рис 2 схема терминальных кратеров вулканаunclassified

The 2017 Activity of the Kurile Islands Volcanoes

Рыбин¹,

Chibisova²,

Degterev³

2018

Bulletin KRAESC. Earth Sciences

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“…in Japan [2]) as well as in volcanic gases, namely from the Kudryavy Volcano, Kurile Islands [3], but it occurs mainly in ores of porphyry copper-molybdenum deposits [4][5][6][7][8][9] associated to molybdenite, MoS 2 , generally recognized as the main Re-carrier in nature [10,11]. Indeed, specific rhenium minerals are so far confined to very few sulphides among which rheniite, ReS 2 [12]expected to be structurally identical to synthetic rhenium disulphide [13] despite its crystal structure has not yet been fully determined [14], and tarkianite (Cu, Fe) (Re, Mo) 4 S 8 [15], a lacunar kenotetrahedral [16] thiospinel.…”

Section: Introductionmentioning

confidence: 99%

Molybdenite as a Rhenium Carrier: First Results of a Spectroscopic Approach Using Synchrotron Radiation

Pereira¹,

Maria-Ondina²,

Oliveira³

et al. 2013

JMMCE

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The chemical and physical properties of rhenium render it a highly demanded metal for advanced applications in important industrial fields. This very scarce element occurs mainly in ores of porphyry copper-molybdenum deposits associated with the mineral molybdenite, MoS 2 , but it has also been found in granite pegmatites and quartz veins as well as in volcanic gases. Molybdenite is a typical polytype mineral which crystal structure is based on the stacking of [SMo-S] with molybdenum in prismatic coordination by sulphide anions; however, it is not yet clearly established if rhenium ions replace Mo 4+ cations in a disordered way or else, if such replacement gives rise to dispersed nanodomains of a rhenium-rich phase. As a contribution to clarify this question, an X-ray absorption spectroscopy (XANES) study using synchrotron radiation was performed at the Re L 3 -edge of rhenium-containing molybdenite samples. Obtained results are described and discussed supporting the generally accepted structural perspective that rhenium is mainly carried by molybdenite through the isomorphous replacement of Mo, rather than by the formation of dispersed Re-specific nanophase(s).

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Discovery of a pure rhenium mineral at Kudriavy volcano

Cited by 127 publications

References 5 publications

RHENIUM-RICH MOLYBDENITE AND RHENIITE IN THE PAGONI RACHI Mo-Cu-Te-Ag-Au PROSPECT, NORTHERN GREECE: IMPLICATIONS FOR THE Re GEOCHEMISTRY OF PORPHYRY-STYLE Cu-Mo AND Mo MINERALIZATION

RHENIUM-RICH MOLYBDENITE AND RHENIITE IN THE PAGONI RACHI Mo-Cu-Te-Ag-Au PROSPECT, NORTHERN GREECE: IMPLICATIONS FOR THE Re GEOCHEMISTRY OF PORPHYRY-STYLE Cu-Mo AND Mo MINERALIZATION

The 2017 Activity of the Kurile Islands Volcanoes

Molybdenite as a Rhenium Carrier: First Results of a Spectroscopic Approach Using Synchrotron Radiation

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