| Reference Type | Journal (article/letter/editorial) |
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| Title | Manifestaciones de piritas framboidales en fumarolasde la Isla Decepción (Antártida): Implicancias genéticas
[Framboidal pyrite in fumaroles on Deception Island (Antarctica): Genetic implications] |
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| Journal | Revista de la Asociación Geológica Argentina |
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| Authors | Agusto, Mariano R. | Author |
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| Caselli, Alberto T. | Author |
| Alfonso, María Dos Santos | Author |
| Year | 2004 | Volume | 59 |
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| Issue | 1 |
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| Publisher | Asociación Geológica Argentina | Place | Buenos Aires |
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| Download URL | https://revista.geologica.org.ar/raga/article/download/1452/1405/4954 |
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| Original Entry | |
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| Languages | Spanish |
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| Classification | Not set | LoC | Not set |
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| Mindat Ref. ID | 15993706 | Long-form Identifier | mindat:1:5:15993706:0 |
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| GUID | c72d6654-e235-4642-9528-cf0b1a548f28 |
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| Full Reference | Agusto, Mariano R., Caselli, Alberto T., Alfonso, María Dos Santos (2004) Manifestaciones de piritas framboidales en fumarolasde la Isla Decepción (Antártida): Implicancias genéticas [Framboidal pyrite in fumaroles on Deception Island (Antarctica): Genetic implications]. Revista de la Asociación Geológica Argentina, 59 (1) Buenos Aires. |
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| Plain Text | Agusto, Mariano R., Caselli, Alberto T., Alfonso, María Dos Santos (2004) Manifestaciones de piritas framboidales en fumarolasde la Isla Decepción (Antártida): Implicancias genéticas [Framboidal pyrite in fumaroles on Deception Island (Antarctica): Genetic implications]. Revista de la Asociación Geológica Argentina, 59 (1) Buenos Aires. |
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| In | (2004) Revista de la Asociación Geológica Argentina Vol. 59 (1) Asociación Geológica Argentina |
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| Abstract/Notes | Pyrite framboids have been recognized in fumaroles on Deception Island, Antarctica. The sulphide was deposited around reworked pyroclastic tephra (lapilli). The formation process starts as a reaction between glass and hydrogen sulphide, giving rise to nucleation and growth of iron monosulfide microcrystals. The microcrystals then convert to greigite, and form aggregates of uniformly sized microcrystals (development of framboids). Finally, greigite is replaced by pyrite. In this study pyrite was observed forming at 100ºCin less than one hour. |
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